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fuchsia / third_party / vim / refs/tags/v7.4.1151 / . / src / eval.c
blob: 565d71d78631075665d10ce7aaccee577d469fc2 [file] [log] [blame]
/* vi:set ts=8 sts=4 sw=4:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* eval.c: Expression evaluation.
*/
#include "vim.h"
#if defined(FEAT_EVAL) || defined(PROTO)
#ifdef AMIGA
# include <time.h> /* for strftime() */
#endif
#ifdef VMS
# include <float.h>
#endif
#ifdef MACOS
# include <time.h> /* for time_t */
#endif
#if defined(FEAT_FLOAT) && defined(HAVE_MATH_H)
# include <math.h>
#endif
#define DICT_MAXNEST 100 /* maximum nesting of lists and dicts */
#define DO_NOT_FREE_CNT 99999 /* refcount for dict or list that should not
be freed. */
/*
* In a hashtab item "hi_key" points to "di_key" in a dictitem.
* This avoids adding a pointer to the hashtab item.
* DI2HIKEY() converts a dictitem pointer to a hashitem key pointer.
* HIKEY2DI() converts a hashitem key pointer to a dictitem pointer.
* HI2DI() converts a hashitem pointer to a dictitem pointer.
*/
static dictitem_T dumdi;
#define DI2HIKEY(di) ((di)->di_key)
#define HIKEY2DI(p) ((dictitem_T *)(p - (dumdi.di_key - (char_u *)&dumdi)))
#define HI2DI(hi) HIKEY2DI((hi)->hi_key)
/*
* Structure returned by get_lval() and used by set_var_lval().
* For a plain name:
* "name" points to the variable name.
* "exp_name" is NULL.
* "tv" is NULL
* For a magic braces name:
* "name" points to the expanded variable name.
* "exp_name" is non-NULL, to be freed later.
* "tv" is NULL
* For an index in a list:
* "name" points to the (expanded) variable name.
* "exp_name" NULL or non-NULL, to be freed later.
* "tv" points to the (first) list item value
* "li" points to the (first) list item
* "range", "n1", "n2" and "empty2" indicate what items are used.
* For an existing Dict item:
* "name" points to the (expanded) variable name.
* "exp_name" NULL or non-NULL, to be freed later.
* "tv" points to the dict item value
* "newkey" is NULL
* For a non-existing Dict item:
* "name" points to the (expanded) variable name.
* "exp_name" NULL or non-NULL, to be freed later.
* "tv" points to the Dictionary typval_T
* "newkey" is the key for the new item.
*/
typedef struct lval_S
{
char_u *ll_name; /* start of variable name (can be NULL) */
char_u *ll_exp_name; /* NULL or expanded name in allocated memory. */
typval_T *ll_tv; /* Typeval of item being used. If "newkey"
isn't NULL it's the Dict to which to add
the item. */
listitem_T *ll_li; /* The list item or NULL. */
list_T *ll_list; /* The list or NULL. */
int ll_range; /* TRUE when a [i:j] range was used */
long ll_n1; /* First index for list */
long ll_n2; /* Second index for list range */
int ll_empty2; /* Second index is empty: [i:] */
dict_T *ll_dict; /* The Dictionary or NULL */
dictitem_T *ll_di; /* The dictitem or NULL */
char_u *ll_newkey; /* New key for Dict in alloc. mem or NULL. */
} lval_T;
static char *e_letunexp = N_("E18: Unexpected characters in :let");
static char *e_listidx = N_("E684: list index out of range: %ld");
static char *e_undefvar = N_("E121: Undefined variable: %s");
static char *e_missbrac = N_("E111: Missing ']'");
static char *e_listarg = N_("E686: Argument of %s must be a List");
static char *e_listdictarg = N_("E712: Argument of %s must be a List or Dictionary");
static char *e_emptykey = N_("E713: Cannot use empty key for Dictionary");
static char *e_listreq = N_("E714: List required");
static char *e_dictreq = N_("E715: Dictionary required");
static char *e_toomanyarg = N_("E118: Too many arguments for function: %s");
static char *e_dictkey = N_("E716: Key not present in Dictionary: %s");
static char *e_funcexts = N_("E122: Function %s already exists, add ! to replace it");
static char *e_funcdict = N_("E717: Dictionary entry already exists");
static char *e_funcref = N_("E718: Funcref required");
static char *e_dictrange = N_("E719: Cannot use [:] with a Dictionary");
static char *e_letwrong = N_("E734: Wrong variable type for %s=");
static char *e_nofunc = N_("E130: Unknown function: %s");
static char *e_illvar = N_("E461: Illegal variable name: %s");
#ifdef FEAT_FLOAT
static char *e_float_as_string = N_("E806: using Float as a String");
#endif
#define NAMESPACE_CHAR (char_u *)"abglstvw"
static dictitem_T globvars_var; /* variable used for g: */
#define globvarht globvardict.dv_hashtab
/*
* Old Vim variables such as "v:version" are also available without the "v:".
* Also in functions. We need a special hashtable for them.
*/
static hashtab_T compat_hashtab;
/*
* When recursively copying lists and dicts we need to remember which ones we
* have done to avoid endless recursiveness. This unique ID is used for that.
* The last bit is used for previous_funccal, ignored when comparing.
*/
static int current_copyID = 0;
#define COPYID_INC 2
#define COPYID_MASK (~0x1)
/* Abort conversion to string after a recursion error. */
static int did_echo_string_emsg = FALSE;
/*
* Array to hold the hashtab with variables local to each sourced script.
* Each item holds a variable (nameless) that points to the dict_T.
*/
typedef struct
{
dictitem_T sv_var;
dict_T sv_dict;
} scriptvar_T;
static garray_T ga_scripts = {0, 0, sizeof(scriptvar_T *), 4, NULL};
#define SCRIPT_SV(id) (((scriptvar_T **)ga_scripts.ga_data)[(id) - 1])
#define SCRIPT_VARS(id) (SCRIPT_SV(id)->sv_dict.dv_hashtab)
static int echo_attr = 0; /* attributes used for ":echo" */
/* Values for trans_function_name() argument: */
#define TFN_INT 1 /* internal function name OK */
#define TFN_QUIET 2 /* no error messages */
#define TFN_NO_AUTOLOAD 4 /* do not use script autoloading */
/* Values for get_lval() flags argument: */
#define GLV_QUIET TFN_QUIET /* no error messages */
#define GLV_NO_AUTOLOAD TFN_NO_AUTOLOAD /* do not use script autoloading */
/*
* Structure to hold info for a user function.
*/
typedef struct ufunc ufunc_T;
struct ufunc
{
int uf_varargs; /* variable nr of arguments */
int uf_flags;
int uf_calls; /* nr of active calls */
garray_T uf_args; /* arguments */
garray_T uf_lines; /* function lines */
#ifdef FEAT_PROFILE
int uf_profiling; /* TRUE when func is being profiled */
/* profiling the function as a whole */
int uf_tm_count; /* nr of calls */
proftime_T uf_tm_total; /* time spent in function + children */
proftime_T uf_tm_self; /* time spent in function itself */
proftime_T uf_tm_children; /* time spent in children this call */
/* profiling the function per line */
int *uf_tml_count; /* nr of times line was executed */
proftime_T *uf_tml_total; /* time spent in a line + children */
proftime_T *uf_tml_self; /* time spent in a line itself */
proftime_T uf_tml_start; /* start time for current line */
proftime_T uf_tml_children; /* time spent in children for this line */
proftime_T uf_tml_wait; /* start wait time for current line */
int uf_tml_idx; /* index of line being timed; -1 if none */
int uf_tml_execed; /* line being timed was executed */
#endif
scid_T uf_script_ID; /* ID of script where function was defined,
used for s: variables */
int uf_refcount; /* for numbered function: reference count */
char_u uf_name[1]; /* name of function (actually longer); can
start with <SNR>123_ (<SNR> is K_SPECIAL
KS_EXTRA KE_SNR) */
};
/* function flags */
#define FC_ABORT 1 /* abort function on error */
#define FC_RANGE 2 /* function accepts range */
#define FC_DICT 4 /* Dict function, uses "self" */
/*
* All user-defined functions are found in this hashtable.
*/
static hashtab_T func_hashtab;
/* The names of packages that once were loaded are remembered. */
static garray_T ga_loaded = {0, 0, sizeof(char_u *), 4, NULL};
/* list heads for garbage collection */
static dict_T *first_dict = NULL; /* list of all dicts */
static list_T *first_list = NULL; /* list of all lists */
/* From user function to hashitem and back. */
static ufunc_T dumuf;
#define UF2HIKEY(fp) ((fp)->uf_name)
#define HIKEY2UF(p) ((ufunc_T *)(p - (dumuf.uf_name - (char_u *)&dumuf)))
#define HI2UF(hi) HIKEY2UF((hi)->hi_key)
#define FUNCARG(fp, j) ((char_u **)(fp->uf_args.ga_data))[j]
#define FUNCLINE(fp, j) ((char_u **)(fp->uf_lines.ga_data))[j]
#define MAX_FUNC_ARGS 20 /* maximum number of function arguments */
#define VAR_SHORT_LEN 20 /* short variable name length */
#define FIXVAR_CNT 12 /* number of fixed variables */
/* structure to hold info for a function that is currently being executed. */
typedef struct funccall_S funccall_T;
struct funccall_S
{
ufunc_T *func; /* function being called */
int linenr; /* next line to be executed */
int returned; /* ":return" used */
struct /* fixed variables for arguments */
{
dictitem_T var; /* variable (without room for name) */
char_u room[VAR_SHORT_LEN]; /* room for the name */
} fixvar[FIXVAR_CNT];
dict_T l_vars; /* l: local function variables */
dictitem_T l_vars_var; /* variable for l: scope */
dict_T l_avars; /* a: argument variables */
dictitem_T l_avars_var; /* variable for a: scope */
list_T l_varlist; /* list for a:000 */
listitem_T l_listitems[MAX_FUNC_ARGS]; /* listitems for a:000 */
typval_T *rettv; /* return value */
linenr_T breakpoint; /* next line with breakpoint or zero */
int dbg_tick; /* debug_tick when breakpoint was set */
int level; /* top nesting level of executed function */
#ifdef FEAT_PROFILE
proftime_T prof_child; /* time spent in a child */
#endif
funccall_T *caller; /* calling function or NULL */
};
/*
* Info used by a ":for" loop.
*/
typedef struct
{
int fi_semicolon; /* TRUE if ending in '; var]' */
int fi_varcount; /* nr of variables in the list */
listwatch_T fi_lw; /* keep an eye on the item used. */
list_T *fi_list; /* list being used */
} forinfo_T;
/*
* Struct used by trans_function_name()
*/
typedef struct
{
dict_T *fd_dict; /* Dictionary used */
char_u *fd_newkey; /* new key in "dict" in allocated memory */
dictitem_T *fd_di; /* Dictionary item used */
} funcdict_T;
/*
* Array to hold the value of v: variables.
* The value is in a dictitem, so that it can also be used in the v: scope.
* The reason to use this table anyway is for very quick access to the
* variables with the VV_ defines.
*/
#include "version.h"
/* values for vv_flags: */
#define VV_COMPAT 1 /* compatible, also used without "v:" */
#define VV_RO 2 /* read-only */
#define VV_RO_SBX 4 /* read-only in the sandbox */
#define VV_NAME(s, t) s, {{t, 0, {0}}, 0, {0}}, {0}
static struct vimvar
{
char *vv_name; /* name of variable, without v: */
dictitem_T vv_di; /* value and name for key */
char vv_filler[16]; /* space for LONGEST name below!!! */
char vv_flags; /* VV_COMPAT, VV_RO, VV_RO_SBX */
} vimvars[VV_LEN] =
{
/*
* The order here must match the VV_ defines in vim.h!
* Initializing a union does not work, leave tv.vval empty to get zero's.
*/
{VV_NAME("count", VAR_NUMBER), VV_COMPAT+VV_RO},
{VV_NAME("count1", VAR_NUMBER), VV_RO},
{VV_NAME("prevcount", VAR_NUMBER), VV_RO},
{VV_NAME("errmsg", VAR_STRING), VV_COMPAT},
{VV_NAME("warningmsg", VAR_STRING), 0},
{VV_NAME("statusmsg", VAR_STRING), 0},
{VV_NAME("shell_error", VAR_NUMBER), VV_COMPAT+VV_RO},
{VV_NAME("this_session", VAR_STRING), VV_COMPAT},
{VV_NAME("version", VAR_NUMBER), VV_COMPAT+VV_RO},
{VV_NAME("lnum", VAR_NUMBER), VV_RO_SBX},
{VV_NAME("termresponse", VAR_STRING), VV_RO},
{VV_NAME("fname", VAR_STRING), VV_RO},
{VV_NAME("lang", VAR_STRING), VV_RO},
{VV_NAME("lc_time", VAR_STRING), VV_RO},
{VV_NAME("ctype", VAR_STRING), VV_RO},
{VV_NAME("charconvert_from", VAR_STRING), VV_RO},
{VV_NAME("charconvert_to", VAR_STRING), VV_RO},
{VV_NAME("fname_in", VAR_STRING), VV_RO},
{VV_NAME("fname_out", VAR_STRING), VV_RO},
{VV_NAME("fname_new", VAR_STRING), VV_RO},
{VV_NAME("fname_diff", VAR_STRING), VV_RO},
{VV_NAME("cmdarg", VAR_STRING), VV_RO},
{VV_NAME("foldstart", VAR_NUMBER), VV_RO_SBX},
{VV_NAME("foldend", VAR_NUMBER), VV_RO_SBX},
{VV_NAME("folddashes", VAR_STRING), VV_RO_SBX},
{VV_NAME("foldlevel", VAR_NUMBER), VV_RO_SBX},
{VV_NAME("progname", VAR_STRING), VV_RO},
{VV_NAME("servername", VAR_STRING), VV_RO},
{VV_NAME("dying", VAR_NUMBER), VV_RO},
{VV_NAME("exception", VAR_STRING), VV_RO},
{VV_NAME("throwpoint", VAR_STRING), VV_RO},
{VV_NAME("register", VAR_STRING), VV_RO},
{VV_NAME("cmdbang", VAR_NUMBER), VV_RO},
{VV_NAME("insertmode", VAR_STRING), VV_RO},
{VV_NAME("val", VAR_UNKNOWN), VV_RO},
{VV_NAME("key", VAR_UNKNOWN), VV_RO},
{VV_NAME("profiling", VAR_NUMBER), VV_RO},
{VV_NAME("fcs_reason", VAR_STRING), VV_RO},
{VV_NAME("fcs_choice", VAR_STRING), 0},
{VV_NAME("beval_bufnr", VAR_NUMBER), VV_RO},
{VV_NAME("beval_winnr", VAR_NUMBER), VV_RO},
{VV_NAME("beval_lnum", VAR_NUMBER), VV_RO},
{VV_NAME("beval_col", VAR_NUMBER), VV_RO},
{VV_NAME("beval_text", VAR_STRING), VV_RO},
{VV_NAME("scrollstart", VAR_STRING), 0},
{VV_NAME("swapname", VAR_STRING), VV_RO},
{VV_NAME("swapchoice", VAR_STRING), 0},
{VV_NAME("swapcommand", VAR_STRING), VV_RO},
{VV_NAME("char", VAR_STRING), 0},
{VV_NAME("mouse_win", VAR_NUMBER), 0},
{VV_NAME("mouse_lnum", VAR_NUMBER), 0},
{VV_NAME("mouse_col", VAR_NUMBER), 0},
{VV_NAME("operator", VAR_STRING), VV_RO},
{VV_NAME("searchforward", VAR_NUMBER), 0},
{VV_NAME("hlsearch", VAR_NUMBER), 0},
{VV_NAME("oldfiles", VAR_LIST), 0},
{VV_NAME("windowid", VAR_NUMBER), VV_RO},
{VV_NAME("progpath", VAR_STRING), VV_RO},
{VV_NAME("completed_item", VAR_DICT), VV_RO},
{VV_NAME("option_new", VAR_STRING), VV_RO},
{VV_NAME("option_old", VAR_STRING), VV_RO},
{VV_NAME("option_type", VAR_STRING), VV_RO},
{VV_NAME("errors", VAR_LIST), 0},
};
/* shorthand */
#define vv_type vv_di.di_tv.v_type
#define vv_nr vv_di.di_tv.vval.v_number
#define vv_float vv_di.di_tv.vval.v_float
#define vv_str vv_di.di_tv.vval.v_string
#define vv_list vv_di.di_tv.vval.v_list
#define vv_dict vv_di.di_tv.vval.v_dict
#define vv_tv vv_di.di_tv
static dictitem_T vimvars_var; /* variable used for v: */
#define vimvarht vimvardict.dv_hashtab
static void prepare_vimvar __ARGS((int idx, typval_T *save_tv));
static void restore_vimvar __ARGS((int idx, typval_T *save_tv));
static int ex_let_vars __ARGS((char_u *arg, typval_T *tv, int copy, int semicolon, int var_count, char_u *nextchars));
static char_u *skip_var_list __ARGS((char_u *arg, int *var_count, int *semicolon));
static char_u *skip_var_one __ARGS((char_u *arg));
static void list_hashtable_vars __ARGS((hashtab_T *ht, char_u *prefix, int empty, int *first));
static void list_glob_vars __ARGS((int *first));
static void list_buf_vars __ARGS((int *first));
static void list_win_vars __ARGS((int *first));
#ifdef FEAT_WINDOWS
static void list_tab_vars __ARGS((int *first));
#endif
static void list_vim_vars __ARGS((int *first));
static void list_script_vars __ARGS((int *first));
static void list_func_vars __ARGS((int *first));
static char_u *list_arg_vars __ARGS((exarg_T *eap, char_u *arg, int *first));
static char_u *ex_let_one __ARGS((char_u *arg, typval_T *tv, int copy, char_u *endchars, char_u *op));
static int check_changedtick __ARGS((char_u *arg));
static char_u *get_lval __ARGS((char_u *name, typval_T *rettv, lval_T *lp, int unlet, int skip, int flags, int fne_flags));
static void clear_lval __ARGS((lval_T *lp));
static void set_var_lval __ARGS((lval_T *lp, char_u *endp, typval_T *rettv, int copy, char_u *op));
static int tv_op __ARGS((typval_T *tv1, typval_T *tv2, char_u *op));
static void list_fix_watch __ARGS((list_T *l, listitem_T *item));
static void ex_unletlock __ARGS((exarg_T *eap, char_u *argstart, int deep));
static int do_unlet_var __ARGS((lval_T *lp, char_u *name_end, int forceit));
static int do_lock_var __ARGS((lval_T *lp, char_u *name_end, int deep, int lock));
static void item_lock __ARGS((typval_T *tv, int deep, int lock));
static int tv_islocked __ARGS((typval_T *tv));
static int eval0 __ARGS((char_u *arg, typval_T *rettv, char_u **nextcmd, int evaluate));
static int eval1 __ARGS((char_u **arg, typval_T *rettv, int evaluate));
static int eval2 __ARGS((char_u **arg, typval_T *rettv, int evaluate));
static int eval3 __ARGS((char_u **arg, typval_T *rettv, int evaluate));
static int eval4 __ARGS((char_u **arg, typval_T *rettv, int evaluate));
static int eval5 __ARGS((char_u **arg, typval_T *rettv, int evaluate));
static int eval6 __ARGS((char_u **arg, typval_T *rettv, int evaluate, int want_string));
static int eval7 __ARGS((char_u **arg, typval_T *rettv, int evaluate, int want_string));
static int eval_index __ARGS((char_u **arg, typval_T *rettv, int evaluate, int verbose));
static int get_option_tv __ARGS((char_u **arg, typval_T *rettv, int evaluate));
static int get_string_tv __ARGS((char_u **arg, typval_T *rettv, int evaluate));
static int get_lit_string_tv __ARGS((char_u **arg, typval_T *rettv, int evaluate));
static int get_list_tv __ARGS((char_u **arg, typval_T *rettv, int evaluate));
static int rettv_list_alloc __ARGS((typval_T *rettv));
static long list_len __ARGS((list_T *l));
static int list_equal __ARGS((list_T *l1, list_T *l2, int ic, int recursive));
static int dict_equal __ARGS((dict_T *d1, dict_T *d2, int ic, int recursive));
static int tv_equal __ARGS((typval_T *tv1, typval_T *tv2, int ic, int recursive));
static long list_find_nr __ARGS((list_T *l, long idx, int *errorp));
static long list_idx_of_item __ARGS((list_T *l, listitem_T *item));
static int list_append_number __ARGS((list_T *l, varnumber_T n));
static int list_extend __ARGS((list_T *l1, list_T *l2, listitem_T *bef));
static int list_concat __ARGS((list_T *l1, list_T *l2, typval_T *tv));
static list_T *list_copy __ARGS((list_T *orig, int deep, int copyID));
static char_u *list2string __ARGS((typval_T *tv, int copyID));
static int list_join_inner __ARGS((garray_T *gap, list_T *l, char_u *sep, int echo_style, int copyID, garray_T *join_gap));
static int list_join __ARGS((garray_T *gap, list_T *l, char_u *sep, int echo, int copyID));
static int free_unref_items __ARGS((int copyID));
static int rettv_dict_alloc __ARGS((typval_T *rettv));
static dictitem_T *dictitem_copy __ARGS((dictitem_T *org));
static void dictitem_remove __ARGS((dict_T *dict, dictitem_T *item));
static dict_T *dict_copy __ARGS((dict_T *orig, int deep, int copyID));
static long dict_len __ARGS((dict_T *d));
static char_u *dict2string __ARGS((typval_T *tv, int copyID));
static int get_dict_tv __ARGS((char_u **arg, typval_T *rettv, int evaluate));
static char_u *echo_string __ARGS((typval_T *tv, char_u **tofree, char_u *numbuf, int copyID));
static char_u *tv2string __ARGS((typval_T *tv, char_u **tofree, char_u *numbuf, int copyID));
static char_u *string_quote __ARGS((char_u *str, int function));
#ifdef FEAT_FLOAT
static int string2float __ARGS((char_u *text, float_T *value));
#endif
static int get_env_tv __ARGS((char_u **arg, typval_T *rettv, int evaluate));
static int find_internal_func __ARGS((char_u *name));
static char_u *deref_func_name __ARGS((char_u *name, int *lenp, int no_autoload));
static int get_func_tv __ARGS((char_u *name, int len, typval_T *rettv, char_u **arg, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate, dict_T *selfdict));
static int call_func __ARGS((char_u *funcname, int len, typval_T *rettv, int argcount, typval_T *argvars, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate, dict_T *selfdict));
static void emsg_funcname __ARGS((char *ermsg, char_u *name));
static int non_zero_arg __ARGS((typval_T *argvars));
#ifdef FEAT_FLOAT
static void f_abs __ARGS((typval_T *argvars, typval_T *rettv));
static void f_acos __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_add __ARGS((typval_T *argvars, typval_T *rettv));
static void f_alloc_fail __ARGS((typval_T *argvars, typval_T *rettv));
static void f_and __ARGS((typval_T *argvars, typval_T *rettv));
static void f_append __ARGS((typval_T *argvars, typval_T *rettv));
static void f_argc __ARGS((typval_T *argvars, typval_T *rettv));
static void f_argidx __ARGS((typval_T *argvars, typval_T *rettv));
static void f_arglistid __ARGS((typval_T *argvars, typval_T *rettv));
static void f_argv __ARGS((typval_T *argvars, typval_T *rettv));
static void f_assert_equal __ARGS((typval_T *argvars, typval_T *rettv));
static void f_assert_exception __ARGS((typval_T *argvars, typval_T *rettv));
static void f_assert_fails __ARGS((typval_T *argvars, typval_T *rettv));
static void f_assert_false __ARGS((typval_T *argvars, typval_T *rettv));
static void f_assert_true __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_FLOAT
static void f_asin __ARGS((typval_T *argvars, typval_T *rettv));
static void f_atan __ARGS((typval_T *argvars, typval_T *rettv));
static void f_atan2 __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_browse __ARGS((typval_T *argvars, typval_T *rettv));
static void f_browsedir __ARGS((typval_T *argvars, typval_T *rettv));
static void f_bufexists __ARGS((typval_T *argvars, typval_T *rettv));
static void f_buflisted __ARGS((typval_T *argvars, typval_T *rettv));
static void f_bufloaded __ARGS((typval_T *argvars, typval_T *rettv));
static void f_bufname __ARGS((typval_T *argvars, typval_T *rettv));
static void f_bufnr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_bufwinnr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_byte2line __ARGS((typval_T *argvars, typval_T *rettv));
static void byteidx __ARGS((typval_T *argvars, typval_T *rettv, int comp));
static void f_byteidx __ARGS((typval_T *argvars, typval_T *rettv));
static void f_byteidxcomp __ARGS((typval_T *argvars, typval_T *rettv));
static void f_call __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_FLOAT
static void f_ceil __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_changenr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_char2nr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_cindent __ARGS((typval_T *argvars, typval_T *rettv));
static void f_clearmatches __ARGS((typval_T *argvars, typval_T *rettv));
static void f_col __ARGS((typval_T *argvars, typval_T *rettv));
#if defined(FEAT_INS_EXPAND)
static void f_complete __ARGS((typval_T *argvars, typval_T *rettv));
static void f_complete_add __ARGS((typval_T *argvars, typval_T *rettv));
static void f_complete_check __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_confirm __ARGS((typval_T *argvars, typval_T *rettv));
static void f_copy __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_FLOAT
static void f_cos __ARGS((typval_T *argvars, typval_T *rettv));
static void f_cosh __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_count __ARGS((typval_T *argvars, typval_T *rettv));
static void f_cscope_connection __ARGS((typval_T *argvars, typval_T *rettv));
static void f_cursor __ARGS((typval_T *argsvars, typval_T *rettv));
static void f_deepcopy __ARGS((typval_T *argvars, typval_T *rettv));
static void f_delete __ARGS((typval_T *argvars, typval_T *rettv));
static void f_did_filetype __ARGS((typval_T *argvars, typval_T *rettv));
static void f_diff_filler __ARGS((typval_T *argvars, typval_T *rettv));
static void f_diff_hlID __ARGS((typval_T *argvars, typval_T *rettv));
static void f_empty __ARGS((typval_T *argvars, typval_T *rettv));
static void f_escape __ARGS((typval_T *argvars, typval_T *rettv));
static void f_eval __ARGS((typval_T *argvars, typval_T *rettv));
static void f_eventhandler __ARGS((typval_T *argvars, typval_T *rettv));
static void f_executable __ARGS((typval_T *argvars, typval_T *rettv));
static void f_exepath __ARGS((typval_T *argvars, typval_T *rettv));
static void f_exists __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_FLOAT
static void f_exp __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_expand __ARGS((typval_T *argvars, typval_T *rettv));
static void f_extend __ARGS((typval_T *argvars, typval_T *rettv));
static void f_feedkeys __ARGS((typval_T *argvars, typval_T *rettv));
static void f_filereadable __ARGS((typval_T *argvars, typval_T *rettv));
static void f_filewritable __ARGS((typval_T *argvars, typval_T *rettv));
static void f_filter __ARGS((typval_T *argvars, typval_T *rettv));
static void f_finddir __ARGS((typval_T *argvars, typval_T *rettv));
static void f_findfile __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_FLOAT
static void f_float2nr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_floor __ARGS((typval_T *argvars, typval_T *rettv));
static void f_fmod __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_fnameescape __ARGS((typval_T *argvars, typval_T *rettv));
static void f_fnamemodify __ARGS((typval_T *argvars, typval_T *rettv));
static void f_foldclosed __ARGS((typval_T *argvars, typval_T *rettv));
static void f_foldclosedend __ARGS((typval_T *argvars, typval_T *rettv));
static void f_foldlevel __ARGS((typval_T *argvars, typval_T *rettv));
static void f_foldtext __ARGS((typval_T *argvars, typval_T *rettv));
static void f_foldtextresult __ARGS((typval_T *argvars, typval_T *rettv));
static void f_foreground __ARGS((typval_T *argvars, typval_T *rettv));
static void f_function __ARGS((typval_T *argvars, typval_T *rettv));
static void f_garbagecollect __ARGS((typval_T *argvars, typval_T *rettv));
static void f_get __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getbufline __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getbufvar __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getchar __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getcharmod __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getcharsearch __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getcmdline __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getcmdpos __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getcmdtype __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getcmdwintype __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getcwd __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getfontname __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getfperm __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getfsize __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getftime __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getftype __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getline __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getmatches __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getpid __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getcurpos __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getpos __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getqflist __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getreg __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getregtype __ARGS((typval_T *argvars, typval_T *rettv));
static void f_gettabvar __ARGS((typval_T *argvars, typval_T *rettv));
static void f_gettabwinvar __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getwinposx __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getwinposy __ARGS((typval_T *argvars, typval_T *rettv));
static void f_getwinvar __ARGS((typval_T *argvars, typval_T *rettv));
static void f_glob __ARGS((typval_T *argvars, typval_T *rettv));
static void f_globpath __ARGS((typval_T *argvars, typval_T *rettv));
static void f_glob2regpat __ARGS((typval_T *argvars, typval_T *rettv));
static void f_has __ARGS((typval_T *argvars, typval_T *rettv));
static void f_has_key __ARGS((typval_T *argvars, typval_T *rettv));
static void f_haslocaldir __ARGS((typval_T *argvars, typval_T *rettv));
static void f_hasmapto __ARGS((typval_T *argvars, typval_T *rettv));
static void f_histadd __ARGS((typval_T *argvars, typval_T *rettv));
static void f_histdel __ARGS((typval_T *argvars, typval_T *rettv));
static void f_histget __ARGS((typval_T *argvars, typval_T *rettv));
static void f_histnr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_hlID __ARGS((typval_T *argvars, typval_T *rettv));
static void f_hlexists __ARGS((typval_T *argvars, typval_T *rettv));
static void f_hostname __ARGS((typval_T *argvars, typval_T *rettv));
static void f_iconv __ARGS((typval_T *argvars, typval_T *rettv));
static void f_indent __ARGS((typval_T *argvars, typval_T *rettv));
static void f_index __ARGS((typval_T *argvars, typval_T *rettv));
static void f_input __ARGS((typval_T *argvars, typval_T *rettv));
static void f_inputdialog __ARGS((typval_T *argvars, typval_T *rettv));
static void f_inputlist __ARGS((typval_T *argvars, typval_T *rettv));
static void f_inputrestore __ARGS((typval_T *argvars, typval_T *rettv));
static void f_inputsave __ARGS((typval_T *argvars, typval_T *rettv));
static void f_inputsecret __ARGS((typval_T *argvars, typval_T *rettv));
static void f_insert __ARGS((typval_T *argvars, typval_T *rettv));
static void f_invert __ARGS((typval_T *argvars, typval_T *rettv));
static void f_isdirectory __ARGS((typval_T *argvars, typval_T *rettv));
static void f_islocked __ARGS((typval_T *argvars, typval_T *rettv));
static void f_items __ARGS((typval_T *argvars, typval_T *rettv));
static void f_join __ARGS((typval_T *argvars, typval_T *rettv));
static void f_keys __ARGS((typval_T *argvars, typval_T *rettv));
static void f_last_buffer_nr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_len __ARGS((typval_T *argvars, typval_T *rettv));
static void f_libcall __ARGS((typval_T *argvars, typval_T *rettv));
static void f_libcallnr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_line __ARGS((typval_T *argvars, typval_T *rettv));
static void f_line2byte __ARGS((typval_T *argvars, typval_T *rettv));
static void f_lispindent __ARGS((typval_T *argvars, typval_T *rettv));
static void f_localtime __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_FLOAT
static void f_log __ARGS((typval_T *argvars, typval_T *rettv));
static void f_log10 __ARGS((typval_T *argvars, typval_T *rettv));
#endif
#ifdef FEAT_LUA
static void f_luaeval __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_map __ARGS((typval_T *argvars, typval_T *rettv));
static void f_maparg __ARGS((typval_T *argvars, typval_T *rettv));
static void f_mapcheck __ARGS((typval_T *argvars, typval_T *rettv));
static void f_match __ARGS((typval_T *argvars, typval_T *rettv));
static void f_matchadd __ARGS((typval_T *argvars, typval_T *rettv));
static void f_matchaddpos __ARGS((typval_T *argvars, typval_T *rettv));
static void f_matcharg __ARGS((typval_T *argvars, typval_T *rettv));
static void f_matchdelete __ARGS((typval_T *argvars, typval_T *rettv));
static void f_matchend __ARGS((typval_T *argvars, typval_T *rettv));
static void f_matchlist __ARGS((typval_T *argvars, typval_T *rettv));
static void f_matchstr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_max __ARGS((typval_T *argvars, typval_T *rettv));
static void f_min __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef vim_mkdir
static void f_mkdir __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_mode __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_MZSCHEME
static void f_mzeval __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_nextnonblank __ARGS((typval_T *argvars, typval_T *rettv));
static void f_nr2char __ARGS((typval_T *argvars, typval_T *rettv));
static void f_or __ARGS((typval_T *argvars, typval_T *rettv));
static void f_pathshorten __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_PERL
static void f_perleval __ARGS((typval_T *argvars, typval_T *rettv));
#endif
#ifdef FEAT_FLOAT
static void f_pow __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_prevnonblank __ARGS((typval_T *argvars, typval_T *rettv));
static void f_printf __ARGS((typval_T *argvars, typval_T *rettv));
static void f_pumvisible __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_PYTHON3
static void f_py3eval __ARGS((typval_T *argvars, typval_T *rettv));
#endif
#ifdef FEAT_PYTHON
static void f_pyeval __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_range __ARGS((typval_T *argvars, typval_T *rettv));
static void f_readfile __ARGS((typval_T *argvars, typval_T *rettv));
static void f_reltime __ARGS((typval_T *argvars, typval_T *rettv));
static void f_reltimestr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_remote_expr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_remote_foreground __ARGS((typval_T *argvars, typval_T *rettv));
static void f_remote_peek __ARGS((typval_T *argvars, typval_T *rettv));
static void f_remote_read __ARGS((typval_T *argvars, typval_T *rettv));
static void f_remote_send __ARGS((typval_T *argvars, typval_T *rettv));
static void f_remove __ARGS((typval_T *argvars, typval_T *rettv));
static void f_rename __ARGS((typval_T *argvars, typval_T *rettv));
static void f_repeat __ARGS((typval_T *argvars, typval_T *rettv));
static void f_resolve __ARGS((typval_T *argvars, typval_T *rettv));
static void f_reverse __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_FLOAT
static void f_round __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_screenattr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_screenchar __ARGS((typval_T *argvars, typval_T *rettv));
static void f_screencol __ARGS((typval_T *argvars, typval_T *rettv));
static void f_screenrow __ARGS((typval_T *argvars, typval_T *rettv));
static void f_search __ARGS((typval_T *argvars, typval_T *rettv));
static void f_searchdecl __ARGS((typval_T *argvars, typval_T *rettv));
static void f_searchpair __ARGS((typval_T *argvars, typval_T *rettv));
static void f_searchpairpos __ARGS((typval_T *argvars, typval_T *rettv));
static void f_searchpos __ARGS((typval_T *argvars, typval_T *rettv));
static void f_server2client __ARGS((typval_T *argvars, typval_T *rettv));
static void f_serverlist __ARGS((typval_T *argvars, typval_T *rettv));
static void f_setbufvar __ARGS((typval_T *argvars, typval_T *rettv));
static void f_setcharsearch __ARGS((typval_T *argvars, typval_T *rettv));
static void f_setcmdpos __ARGS((typval_T *argvars, typval_T *rettv));
static void f_setline __ARGS((typval_T *argvars, typval_T *rettv));
static void f_setloclist __ARGS((typval_T *argvars, typval_T *rettv));
static void f_setmatches __ARGS((typval_T *argvars, typval_T *rettv));
static void f_setpos __ARGS((typval_T *argvars, typval_T *rettv));
static void f_setqflist __ARGS((typval_T *argvars, typval_T *rettv));
static void f_setreg __ARGS((typval_T *argvars, typval_T *rettv));
static void f_settabvar __ARGS((typval_T *argvars, typval_T *rettv));
static void f_settabwinvar __ARGS((typval_T *argvars, typval_T *rettv));
static void f_setwinvar __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_CRYPT
static void f_sha256 __ARGS((typval_T *argvars, typval_T *rettv));
#endif /* FEAT_CRYPT */
static void f_shellescape __ARGS((typval_T *argvars, typval_T *rettv));
static void f_shiftwidth __ARGS((typval_T *argvars, typval_T *rettv));
static void f_simplify __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_FLOAT
static void f_sin __ARGS((typval_T *argvars, typval_T *rettv));
static void f_sinh __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_sort __ARGS((typval_T *argvars, typval_T *rettv));
static void f_soundfold __ARGS((typval_T *argvars, typval_T *rettv));
static void f_spellbadword __ARGS((typval_T *argvars, typval_T *rettv));
static void f_spellsuggest __ARGS((typval_T *argvars, typval_T *rettv));
static void f_split __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_FLOAT
static void f_sqrt __ARGS((typval_T *argvars, typval_T *rettv));
static void f_str2float __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_str2nr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_strchars __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef HAVE_STRFTIME
static void f_strftime __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_stridx __ARGS((typval_T *argvars, typval_T *rettv));
static void f_string __ARGS((typval_T *argvars, typval_T *rettv));
static void f_strlen __ARGS((typval_T *argvars, typval_T *rettv));
static void f_strpart __ARGS((typval_T *argvars, typval_T *rettv));
static void f_strridx __ARGS((typval_T *argvars, typval_T *rettv));
static void f_strtrans __ARGS((typval_T *argvars, typval_T *rettv));
static void f_strdisplaywidth __ARGS((typval_T *argvars, typval_T *rettv));
static void f_strwidth __ARGS((typval_T *argvars, typval_T *rettv));
static void f_submatch __ARGS((typval_T *argvars, typval_T *rettv));
static void f_substitute __ARGS((typval_T *argvars, typval_T *rettv));
static void f_synID __ARGS((typval_T *argvars, typval_T *rettv));
static void f_synIDattr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_synIDtrans __ARGS((typval_T *argvars, typval_T *rettv));
static void f_synstack __ARGS((typval_T *argvars, typval_T *rettv));
static void f_synconcealed __ARGS((typval_T *argvars, typval_T *rettv));
static void f_system __ARGS((typval_T *argvars, typval_T *rettv));
static void f_systemlist __ARGS((typval_T *argvars, typval_T *rettv));
static void f_tabpagebuflist __ARGS((typval_T *argvars, typval_T *rettv));
static void f_tabpagenr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_tabpagewinnr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_taglist __ARGS((typval_T *argvars, typval_T *rettv));
static void f_tagfiles __ARGS((typval_T *argvars, typval_T *rettv));
static void f_tempname __ARGS((typval_T *argvars, typval_T *rettv));
static void f_test __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_FLOAT
static void f_tan __ARGS((typval_T *argvars, typval_T *rettv));
static void f_tanh __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_tolower __ARGS((typval_T *argvars, typval_T *rettv));
static void f_toupper __ARGS((typval_T *argvars, typval_T *rettv));
static void f_tr __ARGS((typval_T *argvars, typval_T *rettv));
#ifdef FEAT_FLOAT
static void f_trunc __ARGS((typval_T *argvars, typval_T *rettv));
#endif
static void f_type __ARGS((typval_T *argvars, typval_T *rettv));
static void f_undofile __ARGS((typval_T *argvars, typval_T *rettv));
static void f_undotree __ARGS((typval_T *argvars, typval_T *rettv));
static void f_uniq __ARGS((typval_T *argvars, typval_T *rettv));
static void f_values __ARGS((typval_T *argvars, typval_T *rettv));
static void f_virtcol __ARGS((typval_T *argvars, typval_T *rettv));
static void f_visualmode __ARGS((typval_T *argvars, typval_T *rettv));
static void f_wildmenumode __ARGS((typval_T *argvars, typval_T *rettv));
static void f_winbufnr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_wincol __ARGS((typval_T *argvars, typval_T *rettv));
static void f_winheight __ARGS((typval_T *argvars, typval_T *rettv));
static void f_winline __ARGS((typval_T *argvars, typval_T *rettv));
static void f_winnr __ARGS((typval_T *argvars, typval_T *rettv));
static void f_winrestcmd __ARGS((typval_T *argvars, typval_T *rettv));
static void f_winrestview __ARGS((typval_T *argvars, typval_T *rettv));
static void f_winsaveview __ARGS((typval_T *argvars, typval_T *rettv));
static void f_winwidth __ARGS((typval_T *argvars, typval_T *rettv));
static void f_writefile __ARGS((typval_T *argvars, typval_T *rettv));
static void f_wordcount __ARGS((typval_T *argvars, typval_T *rettv));
static void f_xor __ARGS((typval_T *argvars, typval_T *rettv));
static int list2fpos __ARGS((typval_T *arg, pos_T *posp, int *fnump, colnr_T *curswantp));
static pos_T *var2fpos __ARGS((typval_T *varp, int dollar_lnum, int *fnum));
static int get_env_len __ARGS((char_u **arg));
static int get_id_len __ARGS((char_u **arg));
static int get_name_len __ARGS((char_u **arg, char_u **alias, int evaluate, int verbose));
static char_u *find_name_end __ARGS((char_u *arg, char_u **expr_start, char_u **expr_end, int flags));
#define FNE_INCL_BR 1 /* find_name_end(): include [] in name */
#define FNE_CHECK_START 2 /* find_name_end(): check name starts with
valid character */
static char_u * make_expanded_name __ARGS((char_u *in_start, char_u *expr_start, char_u *expr_end, char_u *in_end));
static int eval_isnamec __ARGS((int c));
static int eval_isnamec1 __ARGS((int c));
static int get_var_tv __ARGS((char_u *name, int len, typval_T *rettv, dictitem_T **dip, int verbose, int no_autoload));
static int handle_subscript __ARGS((char_u **arg, typval_T *rettv, int evaluate, int verbose));
static typval_T *alloc_tv __ARGS((void));
static typval_T *alloc_string_tv __ARGS((char_u *string));
static void init_tv __ARGS((typval_T *varp));
static long get_tv_number __ARGS((typval_T *varp));
#ifdef FEAT_FLOAT
static float_T get_tv_float(typval_T *varp);
#endif
static linenr_T get_tv_lnum __ARGS((typval_T *argvars));
static linenr_T get_tv_lnum_buf __ARGS((typval_T *argvars, buf_T *buf));
static char_u *get_tv_string __ARGS((typval_T *varp));
static char_u *get_tv_string_buf __ARGS((typval_T *varp, char_u *buf));
static char_u *get_tv_string_buf_chk __ARGS((typval_T *varp, char_u *buf));
static dictitem_T *find_var __ARGS((char_u *name, hashtab_T **htp, int no_autoload));
static dictitem_T *find_var_in_ht __ARGS((hashtab_T *ht, int htname, char_u *varname, int no_autoload));
static hashtab_T *find_var_ht __ARGS((char_u *name, char_u **varname));
static funccall_T *get_funccal __ARGS((void));
static void vars_clear_ext __ARGS((hashtab_T *ht, int free_val));
static void delete_var __ARGS((hashtab_T *ht, hashitem_T *hi));
static void list_one_var __ARGS((dictitem_T *v, char_u *prefix, int *first));
static void list_one_var_a __ARGS((char_u *prefix, char_u *name, int type, char_u *string, int *first));
static void set_var __ARGS((char_u *name, typval_T *varp, int copy));
static int var_check_ro __ARGS((int flags, char_u *name, int use_gettext));
static int var_check_fixed __ARGS((int flags, char_u *name, int use_gettext));
static int var_check_func_name __ARGS((char_u *name, int new_var));
static int valid_varname __ARGS((char_u *varname));
static int tv_check_lock __ARGS((int lock, char_u *name, int use_gettext));
static int item_copy __ARGS((typval_T *from, typval_T *to, int deep, int copyID));
static char_u *find_option_end __ARGS((char_u **arg, int *opt_flags));
static char_u *trans_function_name __ARGS((char_u **pp, int skip, int flags, funcdict_T *fd));
static int eval_fname_script __ARGS((char_u *p));
static int eval_fname_sid __ARGS((char_u *p));
static void list_func_head __ARGS((ufunc_T *fp, int indent));
static ufunc_T *find_func __ARGS((char_u *name));
static int function_exists __ARGS((char_u *name));
static int builtin_function __ARGS((char_u *name, int len));
#ifdef FEAT_PROFILE
static void func_do_profile __ARGS((ufunc_T *fp));
static void prof_sort_list __ARGS((FILE *fd, ufunc_T **sorttab, int st_len, char *title, int prefer_self));
static void prof_func_line __ARGS((FILE *fd, int count, proftime_T *total, proftime_T *self, int prefer_self));
static int
# ifdef __BORLANDC__
_RTLENTRYF
# endif
prof_total_cmp __ARGS((const void *s1, const void *s2));
static int
# ifdef __BORLANDC__
_RTLENTRYF
# endif
prof_self_cmp __ARGS((const void *s1, const void *s2));
#endif
static int script_autoload __ARGS((char_u *name, int reload));
static char_u *autoload_name __ARGS((char_u *name));
static void cat_func_name __ARGS((char_u *buf, ufunc_T *fp));
static void func_free __ARGS((ufunc_T *fp));
static void call_user_func __ARGS((ufunc_T *fp, int argcount, typval_T *argvars, typval_T *rettv, linenr_T firstline, linenr_T lastline, dict_T *selfdict));
static int can_free_funccal __ARGS((funccall_T *fc, int copyID)) ;
static void free_funccal __ARGS((funccall_T *fc, int free_val));
static void add_nr_var __ARGS((dict_T *dp, dictitem_T *v, char *name, varnumber_T nr));
static win_T *find_win_by_nr __ARGS((typval_T *vp, tabpage_T *tp));
static win_T *find_tabwin __ARGS((typval_T *wvp, typval_T *tvp));
static void getwinvar __ARGS((typval_T *argvars, typval_T *rettv, int off));
static int searchpair_cmn __ARGS((typval_T *argvars, pos_T *match_pos));
static int search_cmn __ARGS((typval_T *argvars, pos_T *match_pos, int *flagsp));
static void setwinvar __ARGS((typval_T *argvars, typval_T *rettv, int off));
static int write_list __ARGS((FILE *fd, list_T *list, int binary));
static void get_cmd_output_as_rettv __ARGS((typval_T *argvars, typval_T *rettv, int retlist));
#ifdef EBCDIC
static int compare_func_name __ARGS((const void *s1, const void *s2));
static void sortFunctions __ARGS(());
#endif
/*
* Initialize the global and v: variables.
*/
void
eval_init()
{
int i;
struct vimvar *p;
init_var_dict(&globvardict, &globvars_var, VAR_DEF_SCOPE);
init_var_dict(&vimvardict, &vimvars_var, VAR_SCOPE);
vimvardict.dv_lock = VAR_FIXED;
hash_init(&compat_hashtab);
hash_init(&func_hashtab);
for (i = 0; i < VV_LEN; ++i)
{
p = &vimvars[i];
STRCPY(p->vv_di.di_key, p->vv_name);
if (p->vv_flags & VV_RO)
p->vv_di.di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
else if (p->vv_flags & VV_RO_SBX)
p->vv_di.di_flags = DI_FLAGS_RO_SBX | DI_FLAGS_FIX;
else
p->vv_di.di_flags = DI_FLAGS_FIX;
/* add to v: scope dict, unless the value is not always available */
if (p->vv_type != VAR_UNKNOWN)
hash_add(&vimvarht, p->vv_di.di_key);
if (p->vv_flags & VV_COMPAT)
/* add to compat scope dict */
hash_add(&compat_hashtab, p->vv_di.di_key);
}
set_vim_var_nr(VV_SEARCHFORWARD, 1L);
set_vim_var_nr(VV_HLSEARCH, 1L);
set_vim_var_dict(VV_COMPLETED_ITEM, dict_alloc());
set_vim_var_list(VV_ERRORS, list_alloc());
set_reg_var(0); /* default for v:register is not 0 but '"' */
#ifdef EBCDIC
/*
* Sort the function table, to enable binary search.
*/
sortFunctions();
#endif
}
#if defined(EXITFREE) || defined(PROTO)
void
eval_clear()
{
int i;
struct vimvar *p;
for (i = 0; i < VV_LEN; ++i)
{
p = &vimvars[i];
if (p->vv_di.di_tv.v_type == VAR_STRING)
{
vim_free(p->vv_str);
p->vv_str = NULL;
}
else if (p->vv_di.di_tv.v_type == VAR_LIST)
{
list_unref(p->vv_list);
p->vv_list = NULL;
}
}
hash_clear(&vimvarht);
hash_init(&vimvarht); /* garbage_collect() will access it */
hash_clear(&compat_hashtab);
free_scriptnames();
# if defined(FEAT_CMDL_COMPL)
free_locales();
# endif
/* global variables */
vars_clear(&globvarht);
/* autoloaded script names */
ga_clear_strings(&ga_loaded);
/* Script-local variables. First clear all the variables and in a second
* loop free the scriptvar_T, because a variable in one script might hold
* a reference to the whole scope of another script. */
for (i = 1; i <= ga_scripts.ga_len; ++i)
vars_clear(&SCRIPT_VARS(i));
for (i = 1; i <= ga_scripts.ga_len; ++i)
vim_free(SCRIPT_SV(i));
ga_clear(&ga_scripts);
/* unreferenced lists and dicts */
(void)garbage_collect();
/* functions */
free_all_functions();
hash_clear(&func_hashtab);
}
#endif
/*
* Return the name of the executed function.
*/
char_u *
func_name(void *cookie)
{
return ((funccall_T *)cookie)->func->uf_name;
}
/*
* Return the address holding the next breakpoint line for a funccall cookie.
*/
linenr_T *
func_breakpoint(cookie)
void *cookie;
{
return &((funccall_T *)cookie)->breakpoint;
}
/*
* Return the address holding the debug tick for a funccall cookie.
*/
int *
func_dbg_tick(void *cookie)
{
return &((funccall_T *)cookie)->dbg_tick;
}
/*
* Return the nesting level for a funccall cookie.
*/
int
func_level(void *cookie)
{
return ((funccall_T *)cookie)->level;
}
/* pointer to funccal for currently active function */
funccall_T *current_funccal = NULL;
/* pointer to list of previously used funccal, still around because some
* item in it is still being used. */
funccall_T *previous_funccal = NULL;
/*
* Return TRUE when a function was ended by a ":return" command.
*/
int
current_func_returned()
{
return current_funccal->returned;
}
/*
* Set an internal variable to a string value. Creates the variable if it does
* not already exist.
*/
void
set_internal_string_var(char_u *name, char_u *value)
{
char_u *val;
typval_T *tvp;
val = vim_strsave(value);
if (val != NULL)
{
tvp = alloc_string_tv(val);
if (tvp != NULL)
{
set_var(name, tvp, FALSE);
free_tv(tvp);
}
}
}
static lval_T *redir_lval = NULL;
static garray_T redir_ga; /* only valid when redir_lval is not NULL */
static char_u *redir_endp = NULL;
static char_u *redir_varname = NULL;
/*
* Start recording command output to a variable
* When "append" is TRUE append to an existing variable.
* Returns OK if successfully completed the setup. FAIL otherwise.
*/
int
var_redir_start(char_u *name, int append)
{
int save_emsg;
int err;
typval_T tv;
/* Catch a bad name early. */
if (!eval_isnamec1(*name))
{
EMSG(_(e_invarg));
return FAIL;
}
/* Make a copy of the name, it is used in redir_lval until redir ends. */
redir_varname = vim_strsave(name);
if (redir_varname == NULL)
return FAIL;
redir_lval = (lval_T *)alloc_clear((unsigned)sizeof(lval_T));
if (redir_lval == NULL)
{
var_redir_stop();
return FAIL;
}
/* The output is stored in growarray "redir_ga" until redirection ends. */
ga_init2(&redir_ga, (int)sizeof(char), 500);
/* Parse the variable name (can be a dict or list entry). */
redir_endp = get_lval(redir_varname, NULL, redir_lval, FALSE, FALSE, 0,
FNE_CHECK_START);
if (redir_endp == NULL || redir_lval->ll_name == NULL || *redir_endp != NUL)
{
clear_lval(redir_lval);
if (redir_endp != NULL && *redir_endp != NUL)
/* Trailing characters are present after the variable name */
EMSG(_(e_trailing));
else
EMSG(_(e_invarg));
redir_endp = NULL; /* don't store a value, only cleanup */
var_redir_stop();
return FAIL;
}
/* check if we can write to the variable: set it to or append an empty
* string */
save_emsg = did_emsg;
did_emsg = FALSE;
tv.v_type = VAR_STRING;
tv.vval.v_string = (char_u *)"";
if (append)
set_var_lval(redir_lval, redir_endp, &tv, TRUE, (char_u *)".");
else
set_var_lval(redir_lval, redir_endp, &tv, TRUE, (char_u *)"=");
clear_lval(redir_lval);
err = did_emsg;
did_emsg |= save_emsg;
if (err)
{
redir_endp = NULL; /* don't store a value, only cleanup */
var_redir_stop();
return FAIL;
}
return OK;
}
/*
* Append "value[value_len]" to the variable set by var_redir_start().
* The actual appending is postponed until redirection ends, because the value
* appended may in fact be the string we write to, changing it may cause freed
* memory to be used:
* :redir => foo
* :let foo
* :redir END
*/
void
var_redir_str(char_u *value, int value_len)
{
int len;
if (redir_lval == NULL)
return;
if (value_len == -1)
len = (int)STRLEN(value); /* Append the entire string */
else
len = value_len; /* Append only "value_len" characters */
if (ga_grow(&redir_ga, len) == OK)
{
mch_memmove((char *)redir_ga.ga_data + redir_ga.ga_len, value, len);
redir_ga.ga_len += len;
}
else
var_redir_stop();
}
/*
* Stop redirecting command output to a variable.
* Frees the allocated memory.
*/
void
var_redir_stop()
{
typval_T tv;
if (redir_lval != NULL)
{
/* If there was no error: assign the text to the variable. */
if (redir_endp != NULL)
{
ga_append(&redir_ga, NUL); /* Append the trailing NUL. */
tv.v_type = VAR_STRING;
tv.vval.v_string = redir_ga.ga_data;
/* Call get_lval() again, if it's inside a Dict or List it may
* have changed. */
redir_endp = get_lval(redir_varname, NULL, redir_lval,
FALSE, FALSE, 0, FNE_CHECK_START);
if (redir_endp != NULL && redir_lval->ll_name != NULL)
set_var_lval(redir_lval, redir_endp, &tv, FALSE, (char_u *)".");
clear_lval(redir_lval);
}
/* free the collected output */
vim_free(redir_ga.ga_data);
redir_ga.ga_data = NULL;
vim_free(redir_lval);
redir_lval = NULL;
}
vim_free(redir_varname);
redir_varname = NULL;
}
# if defined(FEAT_MBYTE) || defined(PROTO)
int
eval_charconvert(
char_u *enc_from,
char_u *enc_to,
char_u *fname_from,
char_u *fname_to)
{
int err = FALSE;
set_vim_var_string(VV_CC_FROM, enc_from, -1);
set_vim_var_string(VV_CC_TO, enc_to, -1);
set_vim_var_string(VV_FNAME_IN, fname_from, -1);
set_vim_var_string(VV_FNAME_OUT, fname_to, -1);
if (eval_to_bool(p_ccv, &err, NULL, FALSE))
err = TRUE;
set_vim_var_string(VV_CC_FROM, NULL, -1);
set_vim_var_string(VV_CC_TO, NULL, -1);
set_vim_var_string(VV_FNAME_IN, NULL, -1);
set_vim_var_string(VV_FNAME_OUT, NULL, -1);
if (err)
return FAIL;
return OK;
}
# endif
# if defined(FEAT_POSTSCRIPT) || defined(PROTO)
int
eval_printexpr(fname, args)
char_u *fname;
char_u *args;
{
int err = FALSE;
set_vim_var_string(VV_FNAME_IN, fname, -1);
set_vim_var_string(VV_CMDARG, args, -1);
if (eval_to_bool(p_pexpr, &err, NULL, FALSE))
err = TRUE;
set_vim_var_string(VV_FNAME_IN, NULL, -1);
set_vim_var_string(VV_CMDARG, NULL, -1);
if (err)
{
mch_remove(fname);
return FAIL;
}
return OK;
}
# endif
# if defined(FEAT_DIFF) || defined(PROTO)
void
eval_diff(origfile, newfile, outfile)
char_u *origfile;
char_u *newfile;
char_u *outfile;
{
int err = FALSE;
set_vim_var_string(VV_FNAME_IN, origfile, -1);
set_vim_var_string(VV_FNAME_NEW, newfile, -1);
set_vim_var_string(VV_FNAME_OUT, outfile, -1);
(void)eval_to_bool(p_dex, &err, NULL, FALSE);
set_vim_var_string(VV_FNAME_IN, NULL, -1);
set_vim_var_string(VV_FNAME_NEW, NULL, -1);
set_vim_var_string(VV_FNAME_OUT, NULL, -1);
}
void
eval_patch(origfile, difffile, outfile)
char_u *origfile;
char_u *difffile;
char_u *outfile;
{
int err;
set_vim_var_string(VV_FNAME_IN, origfile, -1);
set_vim_var_string(VV_FNAME_DIFF, difffile, -1);
set_vim_var_string(VV_FNAME_OUT, outfile, -1);
(void)eval_to_bool(p_pex, &err, NULL, FALSE);
set_vim_var_string(VV_FNAME_IN, NULL, -1);
set_vim_var_string(VV_FNAME_DIFF, NULL, -1);
set_vim_var_string(VV_FNAME_OUT, NULL, -1);
}
# endif
/*
* Top level evaluation function, returning a boolean.
* Sets "error" to TRUE if there was an error.
* Return TRUE or FALSE.
*/
int
eval_to_bool(arg, error, nextcmd, skip)
char_u *arg;
int *error;
char_u **nextcmd;
int skip; /* only parse, don't execute */
{
typval_T tv;
int retval = FALSE;
if (skip)
++emsg_skip;
if (eval0(arg, &tv, nextcmd, !skip) == FAIL)
*error = TRUE;
else
{
*error = FALSE;
if (!skip)
{
retval = (get_tv_number_chk(&tv, error) != 0);
clear_tv(&tv);
}
}
if (skip)
--emsg_skip;
return retval;
}
/*
* Top level evaluation function, returning a string. If "skip" is TRUE,
* only parsing to "nextcmd" is done, without reporting errors. Return
* pointer to allocated memory, or NULL for failure or when "skip" is TRUE.
*/
char_u *
eval_to_string_skip(arg, nextcmd, skip)
char_u *arg;
char_u **nextcmd;
int skip; /* only parse, don't execute */
{
typval_T tv;
char_u *retval;
if (skip)
++emsg_skip;
if (eval0(arg, &tv, nextcmd, !skip) == FAIL || skip)
retval = NULL;
else
{
retval = vim_strsave(get_tv_string(&tv));
clear_tv(&tv);
}
if (skip)
--emsg_skip;
return retval;
}
/*
* Skip over an expression at "*pp".
* Return FAIL for an error, OK otherwise.
*/
int
skip_expr(pp)
char_u **pp;
{
typval_T rettv;
*pp = skipwhite(*pp);
return eval1(pp, &rettv, FALSE);
}
/*
* Top level evaluation function, returning a string.
* When "convert" is TRUE convert a List into a sequence of lines and convert
* a Float to a String.
* Return pointer to allocated memory, or NULL for failure.
*/
char_u *
eval_to_string(arg, nextcmd, convert)
char_u *arg;
char_u **nextcmd;
int convert;
{
typval_T tv;
char_u *retval;
garray_T ga;
#ifdef FEAT_FLOAT
char_u numbuf[NUMBUFLEN];
#endif
if (eval0(arg, &tv, nextcmd, TRUE) == FAIL)
retval = NULL;
else
{
if (convert && tv.v_type == VAR_LIST)
{
ga_init2(&ga, (int)sizeof(char), 80);
if (tv.vval.v_list != NULL)
{
list_join(&ga, tv.vval.v_list, (char_u *)"\n", TRUE, 0);
if (tv.vval.v_list->lv_len > 0)
ga_append(&ga, NL);
}
ga_append(&ga, NUL);
retval = (char_u *)ga.ga_data;
}
#ifdef FEAT_FLOAT
else if (convert && tv.v_type == VAR_FLOAT)
{
vim_snprintf((char *)numbuf, NUMBUFLEN, "%g", tv.vval.v_float);
retval = vim_strsave(numbuf);
}
#endif
else
retval = vim_strsave(get_tv_string(&tv));
clear_tv(&tv);
}
return retval;
}
/*
* Call eval_to_string() without using current local variables and using
* textlock. When "use_sandbox" is TRUE use the sandbox.
*/
char_u *
eval_to_string_safe(arg, nextcmd, use_sandbox)
char_u *arg;
char_u **nextcmd;
int use_sandbox;
{
char_u *retval;
void *save_funccalp;
save_funccalp = save_funccal();
if (use_sandbox)
++sandbox;
++textlock;
retval = eval_to_string(arg, nextcmd, FALSE);
if (use_sandbox)
--sandbox;
--textlock;
restore_funccal(save_funccalp);
return retval;
}
/*
* Top level evaluation function, returning a number.
* Evaluates "expr" silently.
* Returns -1 for an error.
*/
int
eval_to_number(expr)
char_u *expr;
{
typval_T rettv;
int retval;
char_u *p = skipwhite(expr);
++emsg_off;
if (eval1(&p, &rettv, TRUE) == FAIL)
retval = -1;
else
{
retval = get_tv_number_chk(&rettv, NULL);
clear_tv(&rettv);
}
--emsg_off;
return retval;
}
/*
* Prepare v: variable "idx" to be used.
* Save the current typeval in "save_tv".
* When not used yet add the variable to the v: hashtable.
*/
static void
prepare_vimvar(idx, save_tv)
int idx;
typval_T *save_tv;
{
*save_tv = vimvars[idx].vv_tv;
if (vimvars[idx].vv_type == VAR_UNKNOWN)
hash_add(&vimvarht, vimvars[idx].vv_di.di_key);
}
/*
* Restore v: variable "idx" to typeval "save_tv".
* When no longer defined, remove the variable from the v: hashtable.
*/
static void
restore_vimvar(idx, save_tv)
int idx;
typval_T *save_tv;
{
hashitem_T *hi;
vimvars[idx].vv_tv = *save_tv;
if (vimvars[idx].vv_type == VAR_UNKNOWN)
{
hi = hash_find(&vimvarht, vimvars[idx].vv_di.di_key);
if (HASHITEM_EMPTY(hi))
EMSG2(_(e_intern2), "restore_vimvar()");
else
hash_remove(&vimvarht, hi);
}
}
#if defined(FEAT_SPELL) || defined(PROTO)
/*
* Evaluate an expression to a list with suggestions.
* For the "expr:" part of 'spellsuggest'.
* Returns NULL when there is an error.
*/
list_T *
eval_spell_expr(badword, expr)
char_u *badword;
char_u *expr;
{
typval_T save_val;
typval_T rettv;
list_T *list = NULL;
char_u *p = skipwhite(expr);
/* Set "v:val" to the bad word. */
prepare_vimvar(VV_VAL, &save_val);
vimvars[VV_VAL].vv_type = VAR_STRING;
vimvars[VV_VAL].vv_str = badword;
if (p_verbose == 0)
++emsg_off;
if (eval1(&p, &rettv, TRUE) == OK)
{
if (rettv.v_type != VAR_LIST)
clear_tv(&rettv);
else
list = rettv.vval.v_list;
}
if (p_verbose == 0)
--emsg_off;
restore_vimvar(VV_VAL, &save_val);
return list;
}
/*
* "list" is supposed to contain two items: a word and a number. Return the
* word in "pp" and the number as the return value.
* Return -1 if anything isn't right.
* Used to get the good word and score from the eval_spell_expr() result.
*/
int
get_spellword(list, pp)
list_T *list;
char_u **pp;
{
listitem_T *li;
li = list->lv_first;
if (li == NULL)
return -1;
*pp = get_tv_string(&li->li_tv);
li = li->li_next;
if (li == NULL)
return -1;
return get_tv_number(&li->li_tv);
}
#endif
/*
* Top level evaluation function.
* Returns an allocated typval_T with the result.
* Returns NULL when there is an error.
*/
typval_T *
eval_expr(arg, nextcmd)
char_u *arg;
char_u **nextcmd;
{
typval_T *tv;
tv = (typval_T *)alloc(sizeof(typval_T));
if (tv != NULL && eval0(arg, tv, nextcmd, TRUE) == FAIL)
{
vim_free(tv);
tv = NULL;
}
return tv;
}
/*
* Call some vimL function and return the result in "*rettv".
* Uses argv[argc] for the function arguments. Only Number and String
* arguments are currently supported.
* Returns OK or FAIL.
*/
int
call_vim_function(func, argc, argv, safe, str_arg_only, rettv)
char_u *func;
int argc;
char_u **argv;
int safe; /* use the sandbox */
int str_arg_only; /* all arguments are strings */
typval_T *rettv;
{
typval_T *argvars;
long n;
int len;
int i;
int doesrange;
void *save_funccalp = NULL;
int ret;
argvars = (typval_T *)alloc((unsigned)((argc + 1) * sizeof(typval_T)));
if (argvars == NULL)
return FAIL;
for (i = 0; i < argc; i++)
{
/* Pass a NULL or empty argument as an empty string */
if (argv[i] == NULL || *argv[i] == NUL)
{
argvars[i].v_type = VAR_STRING;
argvars[i].vval.v_string = (char_u *)"";
continue;
}
if (str_arg_only)
len = 0;
else
/* Recognize a number argument, the others must be strings. */
vim_str2nr(argv[i], NULL, &len, STR2NR_ALL, &n, NULL, 0);
if (len != 0 && len == (int)STRLEN(argv[i]))
{
argvars[i].v_type = VAR_NUMBER;
argvars[i].vval.v_number = n;
}
else
{
argvars[i].v_type = VAR_STRING;
argvars[i].vval.v_string = argv[i];
}
}
if (safe)
{
save_funccalp = save_funccal();
++sandbox;
}
rettv->v_type = VAR_UNKNOWN; /* clear_tv() uses this */
ret = call_func(func, (int)STRLEN(func), rettv, argc, argvars,
curwin->w_cursor.lnum, curwin->w_cursor.lnum,
&doesrange, TRUE, NULL);
if (safe)
{
--sandbox;
restore_funccal(save_funccalp);
}
vim_free(argvars);
if (ret == FAIL)
clear_tv(rettv);
return ret;
}
/*
* Call vimL function "func" and return the result as a number.
* Returns -1 when calling the function fails.
* Uses argv[argc] for the function arguments.
*/
long
call_func_retnr(func, argc, argv, safe)
char_u *func;
int argc;
char_u **argv;
int safe; /* use the sandbox */
{
typval_T rettv;
long retval;
/* All arguments are passed as strings, no conversion to number. */
if (call_vim_function(func, argc, argv, safe, TRUE, &rettv) == FAIL)
return -1;
retval = get_tv_number_chk(&rettv, NULL);
clear_tv(&rettv);
return retval;
}
#if (defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)) \
|| defined(FEAT_COMPL_FUNC) || defined(PROTO)
# if (defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)) || defined(PROTO)
/*
* Call vimL function "func" and return the result as a string.
* Returns NULL when calling the function fails.
* Uses argv[argc] for the function arguments.
*/
void *
call_func_retstr(func, argc, argv, safe)
char_u *func;
int argc;
char_u **argv;
int safe; /* use the sandbox */
{
typval_T rettv;
char_u *retval;
/* All arguments are passed as strings, no conversion to number. */
if (call_vim_function(func, argc, argv, safe, TRUE, &rettv) == FAIL)
return NULL;
retval = vim_strsave(get_tv_string(&rettv));
clear_tv(&rettv);
return retval;
}
# endif
/*
* Call vimL function "func" and return the result as a List.
* Uses argv[argc] for the function arguments.
* Returns NULL when there is something wrong.
*/
void *
call_func_retlist(func, argc, argv, safe)
char_u *func;
int argc;
char_u **argv;
int safe; /* use the sandbox */
{
typval_T rettv;
/* All arguments are passed as strings, no conversion to number. */
if (call_vim_function(func, argc, argv, safe, TRUE, &rettv) == FAIL)
return NULL;
if (rettv.v_type != VAR_LIST)
{
clear_tv(&rettv);
return NULL;
}
return rettv.vval.v_list;
}
#endif
/*
* Save the current function call pointer, and set it to NULL.
* Used when executing autocommands and for ":source".
*/
void *
save_funccal()
{
funccall_T *fc = current_funccal;
current_funccal = NULL;
return (void *)fc;
}
void
restore_funccal(vfc)
void *vfc;
{
funccall_T *fc = (funccall_T *)vfc;
current_funccal = fc;
}
#if defined(FEAT_PROFILE) || defined(PROTO)
/*
* Prepare profiling for entering a child or something else that is not
* counted for the script/function itself.
* Should always be called in pair with prof_child_exit().
*/
void
prof_child_enter(tm)
proftime_T *tm; /* place to store waittime */
{
funccall_T *fc = current_funccal;
if (fc != NULL && fc->func->uf_profiling)
profile_start(&fc->prof_child);
script_prof_save(tm);
}
/*
* Take care of time spent in a child.
* Should always be called after prof_child_enter().
*/
void
prof_child_exit(tm)
proftime_T *tm; /* where waittime was stored */
{
funccall_T *fc = current_funccal;
if (fc != NULL && fc->func->uf_profiling)
{
profile_end(&fc->prof_child);
profile_sub_wait(tm, &fc->prof_child); /* don't count waiting time */
profile_add(&fc->func->uf_tm_children, &fc->prof_child);
profile_add(&fc->func->uf_tml_children, &fc->prof_child);
}
script_prof_restore(tm);
}
#endif
#ifdef FEAT_FOLDING
/*
* Evaluate 'foldexpr'. Returns the foldlevel, and any character preceding
* it in "*cp". Doesn't give error messages.
*/
int
eval_foldexpr(arg, cp)
char_u *arg;
int *cp;
{
typval_T tv;
int retval;
char_u *s;
int use_sandbox = was_set_insecurely((char_u *)"foldexpr",
OPT_LOCAL);
++emsg_off;
if (use_sandbox)
++sandbox;
++textlock;
*cp = NUL;
if (eval0(arg, &tv, NULL, TRUE) == FAIL)
retval = 0;
else
{
/* If the result is a number, just return the number. */
if (tv.v_type == VAR_NUMBER)
retval = tv.vval.v_number;
else if (tv.v_type != VAR_STRING || tv.vval.v_string == NULL)
retval = 0;
else
{
/* If the result is a string, check if there is a non-digit before
* the number. */
s = tv.vval.v_string;
if (!VIM_ISDIGIT(*s) && *s != '-')
*cp = *s++;
retval = atol((char *)s);
}
clear_tv(&tv);
}
--emsg_off;
if (use_sandbox)
--sandbox;
--textlock;
return retval;
}
#endif
/*
* ":let" list all variable values
* ":let var1 var2" list variable values
* ":let var = expr" assignment command.
* ":let var += expr" assignment command.
* ":let var -= expr" assignment command.
* ":let var .= expr" assignment command.
* ":let [var1, var2] = expr" unpack list.
*/
void
ex_let(eap)
exarg_T *eap;
{
char_u *arg = eap->arg;
char_u *expr = NULL;
typval_T rettv;
int i;
int var_count = 0;
int semicolon = 0;
char_u op[2];
char_u *argend;
int first = TRUE;
argend = skip_var_list(arg, &var_count, &semicolon);
if (argend == NULL)
return;
if (argend > arg && argend[-1] == '.') /* for var.='str' */
--argend;
expr = skipwhite(argend);
if (*expr != '=' && !(vim_strchr((char_u *)"+-.", *expr) != NULL
&& expr[1] == '='))
{
/*
* ":let" without "=": list variables
*/
if (*arg == '[')
EMSG(_(e_invarg));
else if (!ends_excmd(*arg))
/* ":let var1 var2" */
arg = list_arg_vars(eap, arg, &first);
else if (!eap->skip)
{
/* ":let" */
list_glob_vars(&first);
list_buf_vars(&first);
list_win_vars(&first);
#ifdef FEAT_WINDOWS
list_tab_vars(&first);
#endif
list_script_vars(&first);
list_func_vars(&first);
list_vim_vars(&first);
}
eap->nextcmd = check_nextcmd(arg);
}
else
{
op[0] = '=';
op[1] = NUL;
if (*expr != '=')
{
if (vim_strchr((char_u *)"+-.", *expr) != NULL)
op[0] = *expr; /* +=, -= or .= */
expr = skipwhite(expr + 2);
}
else
expr = skipwhite(expr + 1);
if (eap->skip)
++emsg_skip;
i = eval0(expr, &rettv, &eap->nextcmd, !eap->skip);
if (eap->skip)
{
if (i != FAIL)
clear_tv(&rettv);
--emsg_skip;
}
else if (i != FAIL)
{
(void)ex_let_vars(eap->arg, &rettv, FALSE, semicolon, var_count,
op);
clear_tv(&rettv);
}
}
}
/*
* Assign the typevalue "tv" to the variable or variables at "arg_start".
* Handles both "var" with any type and "[var, var; var]" with a list type.
* When "nextchars" is not NULL it points to a string with characters that
* must appear after the variable(s). Use "+", "-" or "." for add, subtract
* or concatenate.
* Returns OK or FAIL;
*/
static int
ex_let_vars(arg_start, tv, copy, semicolon, var_count, nextchars)
char_u *arg_start;
typval_T *tv;
int copy; /* copy values from "tv", don't move */
int semicolon; /* from skip_var_list() */
int var_count; /* from skip_var_list() */
char_u *nextchars;
{
char_u *arg = arg_start;
list_T *l;
int i;
listitem_T *item;
typval_T ltv;
if (*arg != '[')
{
/*
* ":let var = expr" or ":for var in list"
*/
if (ex_let_one(arg, tv, copy, nextchars, nextchars) == NULL)
return FAIL;
return OK;
}
/*
* ":let [v1, v2] = list" or ":for [v1, v2] in listlist"
*/
if (tv->v_type != VAR_LIST || (l = tv->vval.v_list) == NULL)
{
EMSG(_(e_listreq));
return FAIL;
}
i = list_len(l);
if (semicolon == 0 && var_count < i)
{
EMSG(_("E687: Less targets than List items"));
return FAIL;
}
if (var_count - semicolon > i)
{
EMSG(_("E688: More targets than List items"));
return FAIL;
}
item = l->lv_first;
while (*arg != ']')
{
arg = skipwhite(arg + 1);
arg = ex_let_one(arg, &item->li_tv, TRUE, (char_u *)",;]", nextchars);
item = item->li_next;
if (arg == NULL)
return FAIL;
arg = skipwhite(arg);
if (*arg == ';')
{
/* Put the rest of the list (may be empty) in the var after ';'.
* Create a new list for this. */
l = list_alloc();
if (l == NULL)
return FAIL;
while (item != NULL)
{
list_append_tv(l, &item->li_tv);
item = item->li_next;
}
ltv.v_type = VAR_LIST;
ltv.v_lock = 0;
ltv.vval.v_list = l;
l->lv_refcount = 1;
arg = ex_let_one(skipwhite(arg + 1), &ltv, FALSE,
(char_u *)"]", nextchars);
clear_tv(&ltv);
if (arg == NULL)
return FAIL;
break;
}
else if (*arg != ',' && *arg != ']')
{
EMSG2(_(e_intern2), "ex_let_vars()");
return FAIL;
}
}
return OK;
}
/*
* Skip over assignable variable "var" or list of variables "[var, var]".
* Used for ":let varvar = expr" and ":for varvar in expr".
* For "[var, var]" increment "*var_count" for each variable.
* for "[var, var; var]" set "semicolon".
* Return NULL for an error.
*/
static char_u *
skip_var_list(arg, var_count, semicolon)
char_u *arg;
int *var_count;
int *semicolon;
{
char_u *p, *s;
if (*arg == '[')
{
/* "[var, var]": find the matching ']'. */
p = arg;
for (;;)
{
p = skipwhite(p + 1); /* skip whites after '[', ';' or ',' */
s = skip_var_one(p);
if (s == p)
{
EMSG2(_(e_invarg2), p);
return NULL;
}
++*var_count;
p = skipwhite(s);
if (*p == ']')
break;
else if (*p == ';')
{
if (*semicolon == 1)
{
EMSG(_("Double ; in list of variables"));
return NULL;
}
*semicolon = 1;
}
else if (*p != ',')
{
EMSG2(_(e_invarg2), p);
return NULL;
}
}
return p + 1;
}
else
return skip_var_one(arg);
}
/*
* Skip one (assignable) variable name, including @r, $VAR, &option, d.key,
* l[idx].
*/
static char_u *
skip_var_one(arg)
char_u *arg;
{
if (*arg == '@' && arg[1] != NUL)
return arg + 2;
return find_name_end(*arg == '$' || *arg == '&' ? arg + 1 : arg,
NULL, NULL, FNE_INCL_BR | FNE_CHECK_START);
}
/*
* List variables for hashtab "ht" with prefix "prefix".
* If "empty" is TRUE also list NULL strings as empty strings.
*/
static void
list_hashtable_vars(ht, prefix, empty, first)
hashtab_T *ht;
char_u *prefix;
int empty;
int *first;
{
hashitem_T *hi;
dictitem_T *di;
int todo;
todo = (int)ht->ht_used;
for (hi = ht->ht_array; todo > 0 && !got_int; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
di = HI2DI(hi);
if (empty || di->di_tv.v_type != VAR_STRING
|| di->di_tv.vval.v_string != NULL)
list_one_var(di, prefix, first);
}
}
}
/*
* List global variables.
*/
static void
list_glob_vars(first)
int *first;
{
list_hashtable_vars(&globvarht, (char_u *)"", TRUE, first);
}
/*
* List buffer variables.
*/
static void
list_buf_vars(first)
int *first;
{
char_u numbuf[NUMBUFLEN];
list_hashtable_vars(&curbuf->b_vars->dv_hashtab, (char_u *)"b:",
TRUE, first);
sprintf((char *)numbuf, "%ld", (long)curbuf->b_changedtick);
list_one_var_a((char_u *)"b:", (char_u *)"changedtick", VAR_NUMBER,
numbuf, first);
}
/*
* List window variables.
*/
static void
list_win_vars(first)
int *first;
{
list_hashtable_vars(&curwin->w_vars->dv_hashtab,
(char_u *)"w:", TRUE, first);
}
#ifdef FEAT_WINDOWS
/*
* List tab page variables.
*/
static void
list_tab_vars(first)
int *first;
{
list_hashtable_vars(&curtab->tp_vars->dv_hashtab,
(char_u *)"t:", TRUE, first);
}
#endif
/*
* List Vim variables.
*/
static void
list_vim_vars(first)
int *first;
{
list_hashtable_vars(&vimvarht, (char_u *)"v:", FALSE, first);
}
/*
* List script-local variables, if there is a script.
*/
static void
list_script_vars(first)
int *first;
{
if (current_SID > 0 && current_SID <= ga_scripts.ga_len)
list_hashtable_vars(&SCRIPT_VARS(current_SID),
(char_u *)"s:", FALSE, first);
}
/*
* List function variables, if there is a function.
*/
static void
list_func_vars(first)
int *first;
{
if (current_funccal != NULL)
list_hashtable_vars(&current_funccal->l_vars.dv_hashtab,
(char_u *)"l:", FALSE, first);
}
/*
* List variables in "arg".
*/
static char_u *
list_arg_vars(eap, arg, first)
exarg_T *eap;
char_u *arg;
int *first;
{
int error = FALSE;
int len;
char_u *name;
char_u *name_start;
char_u *arg_subsc;
char_u *tofree;
typval_T tv;
while (!ends_excmd(*arg) && !got_int)
{
if (error || eap->skip)
{
arg = find_name_end(arg, NULL, NULL, FNE_INCL_BR | FNE_CHECK_START);
if (!vim_iswhite(*arg) && !ends_excmd(*arg))
{
emsg_severe = TRUE;
EMSG(_(e_trailing));
break;
}
}
else
{
/* get_name_len() takes care of expanding curly braces */
name_start = name = arg;
len = get_name_len(&arg, &tofree, TRUE, TRUE);
if (len <= 0)
{
/* This is mainly to keep test 49 working: when expanding
* curly braces fails overrule the exception error message. */
if (len < 0 && !aborting())
{
emsg_severe = TRUE;
EMSG2(_(e_invarg2), arg);
break;
}
error = TRUE;
}
else
{
if (tofree != NULL)
name = tofree;
if (get_var_tv(name, len, &tv, NULL, TRUE, FALSE) == FAIL)
error = TRUE;
else
{
/* handle d.key, l[idx], f(expr) */
arg_subsc = arg;
if (handle_subscript(&arg, &tv, TRUE, TRUE) == FAIL)
error = TRUE;
else
{
if (arg == arg_subsc && len == 2 && name[1] == ':')
{
switch (*name)
{
case 'g': list_glob_vars(first); break;
case 'b': list_buf_vars(first); break;
case 'w': list_win_vars(first); break;
#ifdef FEAT_WINDOWS
case 't': list_tab_vars(first); break;
#endif
case 'v': list_vim_vars(first); break;
case 's': list_script_vars(first); break;
case 'l': list_func_vars(first); break;
default:
EMSG2(_("E738: Can't list variables for %s"), name);
}
}
else
{
char_u numbuf[NUMBUFLEN];
char_u *tf;
int c;
char_u *s;
s = echo_string(&tv, &tf, numbuf, 0);
c = *arg;
*arg = NUL;
list_one_var_a((char_u *)"",
arg == arg_subsc ? name : name_start,
tv.v_type,
s == NULL ? (char_u *)"" : s,
first);
*arg = c;
vim_free(tf);
}
clear_tv(&tv);
}
}
}
vim_free(tofree);
}
arg = skipwhite(arg);
}
return arg;
}
/*
* Set one item of ":let var = expr" or ":let [v1, v2] = list" to its value.
* Returns a pointer to the char just after the var name.
* Returns NULL if there is an error.
*/
static char_u *
ex_let_one(arg, tv, copy, endchars, op)
char_u *arg; /* points to variable name */
typval_T *tv; /* value to assign to variable */
int copy; /* copy value from "tv" */
char_u *endchars; /* valid chars after variable name or NULL */
char_u *op; /* "+", "-", "." or NULL*/
{
int c1;
char_u *name;
char_u *p;
char_u *arg_end = NULL;
int len;
int opt_flags;
char_u *tofree = NULL;
/*
* ":let $VAR = expr": Set environment variable.
*/
if (*arg == '$')
{
/* Find the end of the name. */
++arg;
name = arg;
len = get_env_len(&arg);
if (len == 0)
EMSG2(_(e_invarg2), name - 1);
else
{
if (op != NULL && (*op == '+' || *op == '-'))
EMSG2(_(e_letwrong), op);
else if (endchars != NULL
&& vim_strchr(endchars, *skipwhite(arg)) == NULL)
EMSG(_(e_letunexp));
else if (!check_secure())
{
c1 = name[len];
name[len] = NUL;
p = get_tv_string_chk(tv);
if (p != NULL && op != NULL && *op == '.')
{
int mustfree = FALSE;
char_u *s = vim_getenv(name, &mustfree);
if (s != NULL)
{
p = tofree = concat_str(s, p);
if (mustfree)
vim_free(s);
}
}
if (p != NULL)
{
vim_setenv(name, p);
if (STRICMP(name, "HOME") == 0)
init_homedir();
else if (didset_vim && STRICMP(name, "VIM") == 0)
didset_vim = FALSE;
else if (didset_vimruntime
&& STRICMP(name, "VIMRUNTIME") == 0)
didset_vimruntime = FALSE;
arg_end = arg;
}
name[len] = c1;
vim_free(tofree);
}
}
}
/*
* ":let &option = expr": Set option value.
* ":let &l:option = expr": Set local option value.
* ":let &g:option = expr": Set global option value.
*/
else if (*arg == '&')
{
/* Find the end of the name. */
p = find_option_end(&arg, &opt_flags);
if (p == NULL || (endchars != NULL
&& vim_strchr(endchars, *skipwhite(p)) == NULL))
EMSG(_(e_letunexp));
else
{
long n;
int opt_type;
long numval;
char_u *stringval = NULL;
char_u *s;
c1 = *p;
*p = NUL;
n = get_tv_number(tv);
s = get_tv_string_chk(tv); /* != NULL if number or string */
if (s != NULL && op != NULL && *op != '=')
{
opt_type = get_option_value(arg, &numval,
&stringval, opt_flags);
if ((opt_type == 1 && *op == '.')
|| (opt_type == 0 && *op != '.'))
EMSG2(_(e_letwrong), op);
else
{
if (opt_type == 1) /* number */
{
if (*op == '+')
n = numval + n;
else
n = numval - n;
}
else if (opt_type == 0 && stringval != NULL) /* string */
{
s = concat_str(stringval, s);
vim_free(stringval);
stringval = s;
}
}
}
if (s != NULL)
{
set_option_value(arg, n, s, opt_flags);
arg_end = p;
}
*p = c1;
vim_free(stringval);
}
}
/*
* ":let @r = expr": Set register contents.
*/
else if (*arg == '@')
{
++arg;
if (op != NULL && (*op == '+' || *op == '-'))
EMSG2(_(e_letwrong), op);
else if (endchars != NULL
&& vim_strchr(endchars, *skipwhite(arg + 1)) == NULL)
EMSG(_(e_letunexp));
else
{
char_u *ptofree = NULL;
char_u *s;
p = get_tv_string_chk(tv);
if (p != NULL && op != NULL && *op == '.')
{
s = get_reg_contents(*arg == '@' ? '"' : *arg, GREG_EXPR_SRC);
if (s != NULL)
{
p = ptofree = concat_str(s, p);
vim_free(s);
}
}
if (p != NULL)
{
write_reg_contents(*arg == '@' ? '"' : *arg, p, -1, FALSE);
arg_end = arg + 1;
}
vim_free(ptofree);
}
}
/*
* ":let var = expr": Set internal variable.
* ":let {expr} = expr": Idem, name made with curly braces
*/
else if (eval_isnamec1(*arg) || *arg == '{')
{
lval_T lv;
p = get_lval(arg, tv, &lv, FALSE, FALSE, 0, FNE_CHECK_START);
if (p != NULL && lv.ll_name != NULL)
{
if (endchars != NULL && vim_strchr(endchars, *skipwhite(p)) == NULL)
EMSG(_(e_letunexp));
else
{
set_var_lval(&lv, p, tv, copy, op);
arg_end = p;
}
}
clear_lval(&lv);
}
else
EMSG2(_(e_invarg2), arg);
return arg_end;
}
/*
* If "arg" is equal to "b:changedtick" give an error and return TRUE.
*/
static int
check_changedtick(arg)
char_u *arg;
{
if (STRNCMP(arg, "b:changedtick", 13) == 0 && !eval_isnamec(arg[13]))
{
EMSG2(_(e_readonlyvar), arg);
return TRUE;
}
return FALSE;
}
/*
* Get an lval: variable, Dict item or List item that can be assigned a value
* to: "name", "na{me}", "name[expr]", "name[expr:expr]", "name[expr][expr]",
* "name.key", "name.key[expr]" etc.
* Indexing only works if "name" is an existing List or Dictionary.
* "name" points to the start of the name.
* If "rettv" is not NULL it points to the value to be assigned.
* "unlet" is TRUE for ":unlet": slightly different behavior when something is
* wrong; must end in space or cmd separator.
*
* flags:
* GLV_QUIET: do not give error messages
* GLV_NO_AUTOLOAD: do not use script autoloading
*
* Returns a pointer to just after the name, including indexes.
* When an evaluation error occurs "lp->ll_name" is NULL;
* Returns NULL for a parsing error. Still need to free items in "lp"!
*/
static char_u *
get_lval(name, rettv, lp, unlet, skip, flags, fne_flags)
char_u *name;
typval_T *rettv;
lval_T *lp;
int unlet;
int skip;
int flags; /* GLV_ values */
int fne_flags; /* flags for find_name_end() */
{
char_u *p;
char_u *expr_start, *expr_end;
int cc;
dictitem_T *v;
typval_T var1;
typval_T var2;
int empty1 = FALSE;
listitem_T *ni;
char_u *key = NULL;
int len;
hashtab_T *ht;
int quiet = flags & GLV_QUIET;
/* Clear everything in "lp". */
vim_memset(lp, 0, sizeof(lval_T));
if (skip)
{
/* When skipping just find the end of the name. */
lp->ll_name = name;
return find_name_end(name, NULL, NULL, FNE_INCL_BR | fne_flags);
}
/* Find the end of the name. */
p = find_name_end(name, &expr_start, &expr_end, fne_flags);
if (expr_start != NULL)
{
/* Don't expand the name when we already know there is an error. */
if (unlet && !vim_iswhite(*p) && !ends_excmd(*p)
&& *p != '[' && *p != '.')
{
EMSG(_(e_trailing));
return NULL;
}
lp->ll_exp_name = make_expanded_name(name, expr_start, expr_end, p);
if (lp->ll_exp_name == NULL)
{
/* Report an invalid expression in braces, unless the
* expression evaluation has been cancelled due to an
* aborting error, an interrupt, or an exception. */
if (!aborting() && !quiet)
{
emsg_severe = TRUE;
EMSG2(_(e_invarg2), name);
return NULL;
}
}
lp->ll_name = lp->ll_exp_name;
}
else
lp->ll_name = name;
/* Without [idx] or .key we are done. */
if ((*p != '[' && *p != '.') || lp->ll_name == NULL)
return p;
cc = *p;
*p = NUL;
v = find_var(lp->ll_name, &ht, flags & GLV_NO_AUTOLOAD);
if (v == NULL && !quiet)
EMSG2(_(e_undefvar), lp->ll_name);
*p = cc;
if (v == NULL)
return NULL;
/*
* Loop until no more [idx] or .key is following.
*/
lp->ll_tv = &v->di_tv;
while (*p == '[' || (*p == '.' && lp->ll_tv->v_type == VAR_DICT))
{
if (!(lp->ll_tv->v_type == VAR_LIST && lp->ll_tv->vval.v_list != NULL)
&& !(lp->ll_tv->v_type == VAR_DICT
&& lp->ll_tv->vval.v_dict != NULL))
{
if (!quiet)
EMSG(_("E689: Can only index a List or Dictionary"));
return NULL;
}
if (lp->ll_range)
{
if (!quiet)
EMSG(_("E708: [:] must come last"));
return NULL;
}
len = -1;
if (*p == '.')
{
key = p + 1;
for (len = 0; ASCII_ISALNUM(key[len]) || key[len] == '_'; ++len)
;
if (len == 0)
{
if (!quiet)
EMSG(_(e_emptykey));
return NULL;
}
p = key + len;
}
else
{
/* Get the index [expr] or the first index [expr: ]. */
p = skipwhite(p + 1);
if (*p == ':')
empty1 = TRUE;
else
{
empty1 = FALSE;
if (eval1(&p, &var1, TRUE) == FAIL) /* recursive! */
return NULL;
if (get_tv_string_chk(&var1) == NULL)
{
/* not a number or string */
clear_tv(&var1);
return NULL;
}
}
/* Optionally get the second index [ :expr]. */
if (*p == ':')
{
if (lp->ll_tv->v_type == VAR_DICT)
{
if (!quiet)
EMSG(_(e_dictrange));
if (!empty1)
clear_tv(&var1);
return NULL;
}
if (rettv != NULL && (rettv->v_type != VAR_LIST
|| rettv->vval.v_list == NULL))
{
if (!quiet)
EMSG(_("E709: [:] requires a List value"));
if (!empty1)
clear_tv(&var1);
return NULL;
}
p = skipwhite(p + 1);
if (*p == ']')
lp->ll_empty2 = TRUE;
else
{
lp->ll_empty2 = FALSE;
if (eval1(&p, &var2, TRUE) == FAIL) /* recursive! */
{
if (!empty1)
clear_tv(&var1);
return NULL;
}
if (get_tv_string_chk(&var2) == NULL)
{
/* not a number or string */
if (!empty1)
clear_tv(&var1);
clear_tv(&var2);
return NULL;
}
}
lp->ll_range = TRUE;
}
else
lp->ll_range = FALSE;
if (*p != ']')
{
if (!quiet)
EMSG(_(e_missbrac));
if (!empty1)
clear_tv(&var1);
if (lp->ll_range && !lp->ll_empty2)
clear_tv(&var2);
return NULL;
}
/* Skip to past ']'. */
++p;
}
if (lp->ll_tv->v_type == VAR_DICT)
{
if (len == -1)
{
/* "[key]": get key from "var1" */
key = get_tv_string(&var1); /* is number or string */
if (*key == NUL)
{
if (!quiet)
EMSG(_(e_emptykey));
clear_tv(&var1);
return NULL;
}
}
lp->ll_list = NULL;
lp->ll_dict = lp->ll_tv->vval.v_dict;
lp->ll_di = dict_find(lp->ll_dict, key, len);
/* When assigning to a scope dictionary check that a function and
* variable name is valid (only variable name unless it is l: or
* g: dictionary). Disallow overwriting a builtin function. */
if (rettv != NULL && lp->ll_dict->dv_scope != 0)
{
int prevval;
int wrong;
if (len != -1)
{
prevval = key[len];
key[len] = NUL;
}
else
prevval = 0; /* avoid compiler warning */
wrong = (lp->ll_dict->dv_scope == VAR_DEF_SCOPE
&& rettv->v_type == VAR_FUNC
&& var_check_func_name(key, lp->ll_di == NULL))
|| !valid_varname(key);
if (len != -1)
key[len] = prevval;
if (wrong)
return NULL;
}
if (lp->ll_di == NULL)
{
/* Can't add "v:" variable. */
if (lp->ll_dict == &vimvardict)
{
EMSG2(_(e_illvar), name);
return NULL;
}
/* Key does not exist in dict: may need to add it. */
if (*p == '[' || *p == '.' || unlet)
{
if (!quiet)
EMSG2(_(e_dictkey), key);
if (len == -1)
clear_tv(&var1);
return NULL;
}
if (len == -1)
lp->ll_newkey = vim_strsave(key);
else
lp->ll_newkey = vim_strnsave(key, len);
if (len == -1)
clear_tv(&var1);
if (lp->ll_newkey == NULL)
p = NULL;
break;
}
/* existing variable, need to check if it can be changed */
else if (var_check_ro(lp->ll_di->di_flags, name, FALSE))
return NULL;
if (len == -1)
clear_tv(&var1);
lp->ll_tv = &lp->ll_di->di_tv;
}
else
{
/*
* Get the number and item for the only or first index of the List.
*/
if (empty1)
lp->ll_n1 = 0;
else
{
lp->ll_n1 = get_tv_number(&var1); /* is number or string */
clear_tv(&var1);
}
lp->ll_dict = NULL;
lp->ll_list = lp->ll_tv->vval.v_list;
lp->ll_li = list_find(lp->ll_list, lp->ll_n1);
if (lp->ll_li == NULL)
{
if (lp->ll_n1 < 0)
{
lp->ll_n1 = 0;
lp->ll_li = list_find(lp->ll_list, lp->ll_n1);
}
}
if (lp->ll_li == NULL)
{
if (lp->ll_range && !lp->ll_empty2)
clear_tv(&var2);
if (!quiet)
EMSGN(_(e_listidx), lp->ll_n1);
return NULL;
}
/*
* May need to find the item or absolute index for the second
* index of a range.
* When no index given: "lp->ll_empty2" is TRUE.
* Otherwise "lp->ll_n2" is set to the second index.
*/
if (lp->ll_range && !lp->ll_empty2)
{
lp->ll_n2 = get_tv_number(&var2); /* is number or string */
clear_tv(&var2);
if (lp->ll_n2 < 0)
{
ni = list_find(lp->ll_list, lp->ll_n2);
if (ni == NULL)
{
if (!quiet)
EMSGN(_(e_listidx), lp->ll_n2);
return NULL;
}
lp->ll_n2 = list_idx_of_item(lp->ll_list, ni);
}
/* Check that lp->ll_n2 isn't before lp->ll_n1. */
if (lp->ll_n1 < 0)
lp->ll_n1 = list_idx_of_item(lp->ll_list, lp->ll_li);
if (lp->ll_n2 < lp->ll_n1)
{
if (!quiet)
EMSGN(_(e_listidx), lp->ll_n2);
return NULL;
}
}
lp->ll_tv = &lp->ll_li->li_tv;
}
}
return p;
}
/*
* Clear lval "lp" that was filled by get_lval().
*/
static void
clear_lval(lp)
lval_T *lp;
{
vim_free(lp->ll_exp_name);
vim_free(lp->ll_newkey);
}
/*
* Set a variable that was parsed by get_lval() to "rettv".
* "endp" points to just after the parsed name.
* "op" is NULL, "+" for "+=", "-" for "-=", "." for ".=" or "=" for "=".
*/
static void
set_var_lval(lp, endp, rettv, copy, op)
lval_T *lp;
char_u *endp;
typval_T *rettv;
int copy;
char_u *op;
{
int cc;
listitem_T *ri;
dictitem_T *di;
if (lp->ll_tv == NULL)
{
if (!check_changedtick(lp->ll_name))
{
cc = *endp;
*endp = NUL;
if (op != NULL && *op != '=')
{
typval_T tv;
/* handle +=, -= and .= */
di = NULL;
if (get_var_tv(lp->ll_name, (int)STRLEN(lp->ll_name),
&tv, &di, TRUE, FALSE) == OK)
{
if ((di == NULL
|| (!var_check_ro(di->di_flags, lp->ll_name, FALSE)
&& !tv_check_lock(di->di_tv.v_lock, lp->ll_name,
FALSE)))
&& tv_op(&tv, rettv, op) == OK)
set_var(lp->ll_name, &tv, FALSE);
clear_tv(&tv);
}
}
else
set_var(lp->ll_name, rettv, copy);
*endp = cc;
}
}
else if (tv_check_lock(lp->ll_newkey == NULL
? lp->ll_tv->v_lock
: lp->ll_tv->vval.v_dict->dv_lock, lp->ll_name, FALSE))
;
else if (lp->ll_range)
{
listitem_T *ll_li = lp->ll_li;
int ll_n1 = lp->ll_n1;
/*
* Check whether any of the list items is locked
*/
for (ri = rettv->vval.v_list->lv_first; ri != NULL && ll_li != NULL; )
{
if (tv_check_lock(ll_li->li_tv.v_lock, lp->ll_name, FALSE))
return;
ri = ri->li_next;
if (ri == NULL || (!lp->ll_empty2 && lp->ll_n2 == ll_n1))
break;
ll_li = ll_li->li_next;
++ll_n1;
}
/*
* Assign the List values to the list items.
*/
for (ri = rettv->vval.v_list->lv_first; ri != NULL; )
{
if (op != NULL && *op != '=')
tv_op(&lp->ll_li->li_tv, &ri->li_tv, op);
else
{
clear_tv(&lp->ll_li->li_tv);
copy_tv(&ri->li_tv, &lp->ll_li->li_tv);
}
ri = ri->li_next;
if (ri == NULL || (!lp->ll_empty2 && lp->ll_n2 == lp->ll_n1))
break;
if (lp->ll_li->li_next == NULL)
{
/* Need to add an empty item. */
if (list_append_number(lp->ll_list, 0) == FAIL)
{
ri = NULL;
break;
}
}
lp->ll_li = lp->ll_li->li_next;
++lp->ll_n1;
}
if (ri != NULL)
EMSG(_("E710: List value has more items than target"));
else if (lp->ll_empty2
? (lp->ll_li != NULL && lp->ll_li->li_next != NULL)
: lp->ll_n1 != lp->ll_n2)
EMSG(_("E711: List value has not enough items"));
}
else
{
/*
* Assign to a List or Dictionary item.
*/
if (lp->ll_newkey != NULL)
{
if (op != NULL && *op != '=')
{
EMSG2(_(e_letwrong), op);
return;
}
/* Need to add an item to the Dictionary. */
di = dictitem_alloc(lp->ll_newkey);
if (di == NULL)
return;
if (dict_add(lp->ll_tv->vval.v_dict, di) == FAIL)
{
vim_free(di);
return;
}
lp->ll_tv = &di->di_tv;
}
else if (op != NULL && *op != '=')
{
tv_op(lp->ll_tv, rettv, op);
return;
}
else
clear_tv(lp->ll_tv);
/*
* Assign the value to the variable or list item.
*/
if (copy)
copy_tv(rettv, lp->ll_tv);
else
{
*lp->ll_tv = *rettv;
lp->ll_tv->v_lock = 0;
init_tv(rettv);
}
}
}
/*
* Handle "tv1 += tv2", "tv1 -= tv2" and "tv1 .= tv2"
* Returns OK or FAIL.
*/
static int
tv_op(tv1, tv2, op)
typval_T *tv1;
typval_T *tv2;
char_u *op;
{
long n;
char_u numbuf[NUMBUFLEN];
char_u *s;
/* Can't do anything with a Funcref or a Dict on the right. */
if (tv2->v_type != VAR_FUNC && tv2->v_type != VAR_DICT)
{
switch (tv1->v_type)
{
case VAR_DICT:
case VAR_FUNC:
break;
case VAR_LIST:
if (*op != '+' || tv2->v_type != VAR_LIST)
break;
/* List += List */
if (tv1->vval.v_list != NULL && tv2->vval.v_list != NULL)
list_extend(tv1->vval.v_list, tv2->vval.v_list, NULL);
return OK;
case VAR_NUMBER:
case VAR_STRING:
if (tv2->v_type == VAR_LIST)
break;
if (*op == '+' || *op == '-')
{
/* nr += nr or nr -= nr*/
n = get_tv_number(tv1);
#ifdef FEAT_FLOAT
if (tv2->v_type == VAR_FLOAT)
{
float_T f = n;
if (*op == '+')
f += tv2->vval.v_float;
else
f -= tv2->vval.v_float;
clear_tv(tv1);
tv1->v_type = VAR_FLOAT;
tv1->vval.v_float = f;
}
else
#endif
{
if (*op == '+')
n += get_tv_number(tv2);
else
n -= get_tv_number(tv2);
clear_tv(tv1);
tv1->v_type = VAR_NUMBER;
tv1->vval.v_number = n;
}
}
else
{
if (tv2->v_type == VAR_FLOAT)
break;
/* str .= str */
s = get_tv_string(tv1);
s = concat_str(s, get_tv_string_buf(tv2, numbuf));
clear_tv(tv1);
tv1->v_type = VAR_STRING;
tv1->vval.v_string = s;
}
return OK;
#ifdef FEAT_FLOAT
case VAR_FLOAT:
{
float_T f;
if (*op == '.' || (tv2->v_type != VAR_FLOAT
&& tv2->v_type != VAR_NUMBER
&& tv2->v_type != VAR_STRING))
break;
if (tv2->v_type == VAR_FLOAT)
f = tv2->vval.v_float;
else
f = get_tv_number(tv2);
if (*op == '+')
tv1->vval.v_float += f;
else
tv1->vval.v_float -= f;
}
return OK;
#endif
}
}
EMSG2(_(e_letwrong), op);
return FAIL;
}
/*
* Add a watcher to a list.
*/
void
list_add_watch(l, lw)
list_T *l;
listwatch_T *lw;
{
lw->lw_next = l->lv_watch;
l->lv_watch = lw;
}
/*
* Remove a watcher from a list.
* No warning when it isn't found...
*/
void
list_rem_watch(l, lwrem)
list_T *l;
listwatch_T *lwrem;
{
listwatch_T *lw, **lwp;
lwp = &l->lv_watch;
for (lw = l->lv_watch; lw != NULL; lw = lw->lw_next)
{
if (lw == lwrem)
{
*lwp = lw->lw_next;
break;
}
lwp = &lw->lw_next;
}
}
/*
* Just before removing an item from a list: advance watchers to the next
* item.
*/
static void
list_fix_watch(l, item)
list_T *l;
listitem_T *item;
{
listwatch_T *lw;
for (lw = l->lv_watch; lw != NULL; lw = lw->lw_next)
if (lw->lw_item == item)
lw->lw_item = item->li_next;
}
/*
* Evaluate the expression used in a ":for var in expr" command.
* "arg" points to "var".
* Set "*errp" to TRUE for an error, FALSE otherwise;
* Return a pointer that holds the info. Null when there is an error.
*/
void *
eval_for_line(arg, errp, nextcmdp, skip)
char_u *arg;
int *errp;
char_u **nextcmdp;
int skip;
{
forinfo_T *fi;
char_u *expr;
typval_T tv;
list_T *l;
*errp = TRUE; /* default: there is an error */
fi = (forinfo_T *)alloc_clear(sizeof(forinfo_T));
if (fi == NULL)
return NULL;
expr = skip_var_list(arg, &fi->fi_varcount, &fi->fi_semicolon);
if (expr == NULL)
return fi;
expr = skipwhite(expr);
if (expr[0] != 'i' || expr[1] != 'n' || !vim_iswhite(expr[2]))
{
EMSG(_("E690: Missing \"in\" after :for"));
return fi;
}
if (skip)
++emsg_skip;
if (eval0(skipwhite(expr + 2), &tv, nextcmdp, !skip) == OK)
{
*errp = FALSE;
if (!skip)
{
l = tv.vval.v_list;
if (tv.v_type != VAR_LIST || l == NULL)
{
EMSG(_(e_listreq));
clear_tv(&tv);
}
else
{
/* No need to increment the refcount, it's already set for the
* list being used in "tv". */
fi->fi_list = l;
list_add_watch(l, &fi->fi_lw);
fi->fi_lw.lw_item = l->lv_first;
}
}
}
if (skip)
--emsg_skip;
return fi;
}
/*
* Use the first item in a ":for" list. Advance to the next.
* Assign the values to the variable (list). "arg" points to the first one.
* Return TRUE when a valid item was found, FALSE when at end of list or
* something wrong.
*/
int
next_for_item(fi_void, arg)
void *fi_void;
char_u *arg;
{
forinfo_T *fi = (forinfo_T *)fi_void;
int result;
listitem_T *item;
item = fi->fi_lw.lw_item;
if (item == NULL)
result = FALSE;
else
{
fi->fi_lw.lw_item = item->li_next;
result = (ex_let_vars(arg, &item->li_tv, TRUE,
fi->fi_semicolon, fi->fi_varcount, NULL) == OK);
}
return result;
}
/*
* Free the structure used to store info used by ":for".
*/
void
free_for_info(fi_void)
void *fi_void;
{
forinfo_T *fi = (forinfo_T *)fi_void;
if (fi != NULL && fi->fi_list != NULL)
{
list_rem_watch(fi->fi_list, &fi->fi_lw);
list_unref(fi->fi_list);
}
vim_free(fi);
}
#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
void
set_context_for_expression(xp, arg, cmdidx)
expand_T *xp;
char_u *arg;
cmdidx_T cmdidx;
{
int got_eq = FALSE;
int c;
char_u *p;
if (cmdidx == CMD_let)
{
xp->xp_context = EXPAND_USER_VARS;
if (vim_strpbrk(arg, (char_u *)"\"'+-*/%.=!?~|&$([<>,#") == NULL)
{
/* ":let var1 var2 ...": find last space. */
for (p = arg + STRLEN(arg); p >= arg; )
{
xp->xp_pattern = p;
mb_ptr_back(arg, p);
if (vim_iswhite(*p))
break;
}
return;
}
}
else
xp->xp_context = cmdidx == CMD_call ? EXPAND_FUNCTIONS
: EXPAND_EXPRESSION;
while ((xp->xp_pattern = vim_strpbrk(arg,
(char_u *)"\"'+-*/%.=!?~|&$([<>,#")) != NULL)
{
c = *xp->xp_pattern;
if (c == '&')
{
c = xp->xp_pattern[1];
if (c == '&')
{
++xp->xp_pattern;
xp->xp_context = cmdidx != CMD_let || got_eq
? EXPAND_EXPRESSION : EXPAND_NOTHING;
}
else if (c != ' ')
{
xp->xp_context = EXPAND_SETTINGS;
if ((c == 'l' || c == 'g') && xp->xp_pattern[2] == ':')
xp->xp_pattern += 2;
}
}
else if (c == '$')
{
/* environment variable */
xp->xp_context = EXPAND_ENV_VARS;
}
else if (c == '=')
{
got_eq = TRUE;
xp->xp_context = EXPAND_EXPRESSION;
}
else if ((c == '<' || c == '#')
&& xp->xp_context == EXPAND_FUNCTIONS
&& vim_strchr(xp->xp_pattern, '(') == NULL)
{
/* Function name can start with "<SNR>" and contain '#'. */
break;
}
else if (cmdidx != CMD_let || got_eq)
{
if (c == '"') /* string */
{
while ((c = *++xp->xp_pattern) != NUL && c != '"')
if (c == '\\' && xp->xp_pattern[1] != NUL)
++xp->xp_pattern;
xp->xp_context = EXPAND_NOTHING;
}
else if (c == '\'') /* literal string */
{
/* Trick: '' is like stopping and starting a literal string. */
while ((c = *++xp->xp_pattern) != NUL && c != '\'')
/* skip */ ;
xp->xp_context = EXPAND_NOTHING;
}
else if (c == '|')
{
if (xp->xp_pattern[1] == '|')
{
++xp->xp_pattern;
xp->xp_context = EXPAND_EXPRESSION;
}
else
xp->xp_context = EXPAND_COMMANDS;
}
else
xp->xp_context = EXPAND_EXPRESSION;
}
else
/* Doesn't look like something valid, expand as an expression
* anyway. */
xp->xp_context = EXPAND_EXPRESSION;
arg = xp->xp_pattern;
if (*arg != NUL)
while ((c = *++arg) != NUL && (c == ' ' || c == '\t'))
/* skip */ ;
}
xp->xp_pattern = arg;
}
#endif /* FEAT_CMDL_COMPL */
/*
* ":1,25call func(arg1, arg2)" function call.
*/
void
ex_call(eap)
exarg_T *eap;
{
char_u *arg = eap->arg;
char_u *startarg;
char_u *name;
char_u *tofree;
int len;
typval_T rettv;
linenr_T lnum;
int doesrange;
int failed = FALSE;
funcdict_T fudi;
if (eap->skip)
{
/* trans_function_name() doesn't work well when skipping, use eval0()
* instead to skip to any following command, e.g. for:
* :if 0 | call dict.foo().bar() | endif */
++emsg_skip;
if (eval0(eap->arg, &rettv, &eap->nextcmd, FALSE) != FAIL)
clear_tv(&rettv);
--emsg_skip;
return;
}
tofree = trans_function_name(&arg, eap->skip, TFN_INT, &fudi);
if (fudi.fd_newkey != NULL)
{
/* Still need to give an error message for missing key. */
EMSG2(_(e_dictkey), fudi.fd_newkey);
vim_free(fudi.fd_newkey);
}
if (tofree == NULL)
return;
/* Increase refcount on dictionary, it could get deleted when evaluating
* the arguments. */
if (fudi.fd_dict != NULL)
++fudi.fd_dict->dv_refcount;
/* If it is the name of a variable of type VAR_FUNC use its contents. */
len = (int)STRLEN(tofree);
name = deref_func_name(tofree, &len, FALSE);
/* Skip white space to allow ":call func ()". Not good, but required for
* backward compatibility. */
startarg = skipwhite(arg);
rettv.v_type = VAR_UNKNOWN; /* clear_tv() uses this */
if (*startarg != '(')
{
EMSG2(_("E107: Missing parentheses: %s"), eap->arg);
goto end;
}
/*
* When skipping, evaluate the function once, to find the end of the
* arguments.
* When the function takes a range, this is discovered after the first
* call, and the loop is broken.
*/
if (eap->skip)
{
++emsg_skip;
lnum = eap->line2; /* do it once, also with an invalid range */
}
else
lnum = eap->line1;
for ( ; lnum <= eap->line2; ++lnum)
{
if (!eap->skip && eap->addr_count > 0)
{
curwin->w_cursor.lnum = lnum;
curwin->w_cursor.col = 0;
#ifdef FEAT_VIRTUALEDIT
curwin->w_cursor.coladd = 0;
#endif
}
arg = startarg;
if (get_func_tv(name, (int)STRLEN(name), &rettv, &arg,
eap->line1, eap->line2, &doesrange,
!eap->skip, fudi.fd_dict) == FAIL)
{
failed = TRUE;
break;
}
/* Handle a function returning a Funcref, Dictionary or List. */
if (handle_subscript(&arg, &rettv, !eap->skip, TRUE) == FAIL)
{
failed = TRUE;
break;
}
clear_tv(&rettv);
if (doesrange || eap->skip)
break;
/* Stop when immediately aborting on error, or when an interrupt
* occurred or an exception was thrown but not caught.
* get_func_tv() returned OK, so that the check for trailing
* characters below is executed. */
if (aborting())
break;
}
if (eap->skip)
--emsg_skip;
if (!failed)
{
/* Check for trailing illegal characters and a following command. */
if (!ends_excmd(*arg))
{
emsg_severe = TRUE;
EMSG(_(e_trailing));
}
else
eap->nextcmd = check_nextcmd(arg);
}
end:
dict_unref(fudi.fd_dict);
vim_free(tofree);
}
/*
* ":unlet[!] var1 ... " command.
*/
void
ex_unlet(eap)
exarg_T *eap;
{
ex_unletlock(eap, eap->arg, 0);
}
/*
* ":lockvar" and ":unlockvar" commands
*/
void
ex_lockvar(eap)
exarg_T *eap;
{
char_u *arg = eap->arg;
int deep = 2;
if (eap->forceit)
deep = -1;
else if (vim_isdigit(*arg))
{
deep = getdigits(&arg);
arg = skipwhite(arg);
}
ex_unletlock(eap, arg, deep);
}
/*
* ":unlet", ":lockvar" and ":unlockvar" are quite similar.
*/
static void
ex_unletlock(eap, argstart, deep)
exarg_T *eap;
char_u *argstart;
int deep;
{
char_u *arg = argstart;
char_u *name_end;
int error = FALSE;
lval_T lv;
do
{
/* Parse the name and find the end. */
name_end = get_lval(arg, NULL, &lv, TRUE, eap->skip || error, 0,
FNE_CHECK_START);
if (lv.ll_name == NULL)
error = TRUE; /* error but continue parsing */
if (name_end == NULL || (!vim_iswhite(*name_end)
&& !ends_excmd(*name_end)))
{
if (name_end != NULL)
{
emsg_severe = TRUE;
EMSG(_(e_trailing));
}
if (!(eap->skip || error))
clear_lval(&lv);
break;
}
if (!error && !eap->skip)
{
if (eap->cmdidx == CMD_unlet)
{
if (do_unlet_var(&lv, name_end, eap->forceit) == FAIL)
error = TRUE;
}
else
{
if (do_lock_var(&lv, name_end, deep,
eap->cmdidx == CMD_lockvar) == FAIL)
error = TRUE;
}
}
if (!eap->skip)
clear_lval(&lv);
arg = skipwhite(name_end);
} while (!ends_excmd(*arg));
eap->nextcmd = check_nextcmd(arg);
}
static int
do_unlet_var(lp, name_end, forceit)
lval_T *lp;
char_u *name_end;
int forceit;
{
int ret = OK;
int cc;
if (lp->ll_tv == NULL)
{
cc = *name_end;
*name_end = NUL;
/* Normal name or expanded name. */
if (check_changedtick(lp->ll_name))
ret = FAIL;
else if (do_unlet(lp->ll_name, forceit) == FAIL)
ret = FAIL;
*name_end = cc;
}
else if ((lp->ll_list != NULL
&& tv_check_lock(lp->ll_list->lv_lock, lp->ll_name, FALSE))
|| (lp->ll_dict != NULL
&& tv_check_lock(lp->ll_dict->dv_lock, lp->ll_name, FALSE)))
return FAIL;
else if (lp->ll_range)
{
listitem_T *li;
listitem_T *ll_li = lp->ll_li;
int ll_n1 = lp->ll_n1;
while (ll_li != NULL && (lp->ll_empty2 || lp->ll_n2 >= ll_n1))
{
li = ll_li->li_next;
if (tv_check_lock(ll_li->li_tv.v_lock, lp->ll_name, FALSE))
return FAIL;
ll_li = li;
++ll_n1;
}
/* Delete a range of List items. */
while (lp->ll_li != NULL && (lp->ll_empty2 || lp->ll_n2 >= lp->ll_n1))
{
li = lp->ll_li->li_next;
listitem_remove(lp->ll_list, lp->ll_li);
lp->ll_li = li;
++lp->ll_n1;
}
}
else
{
if (lp->ll_list != NULL)
/* unlet a List item. */
listitem_remove(lp->ll_list, lp->ll_li);
else
/* unlet a Dictionary item. */
dictitem_remove(lp->ll_dict, lp->ll_di);
}
return ret;
}
/*
* "unlet" a variable. Return OK if it existed, FAIL if not.
* When "forceit" is TRUE don't complain if the variable doesn't exist.
*/
int
do_unlet(name, forceit)
char_u *name;
int forceit;
{
hashtab_T *ht;
hashitem_T *hi;
char_u *varname;
dict_T *d;
dictitem_T *di;
ht = find_var_ht(name, &varname);
if (ht != NULL && *varname != NUL)
{
if (ht == &globvarht)
d = &globvardict;
else if (current_funccal != NULL
&& ht == &current_funccal->l_vars.dv_hashtab)
d = &current_funccal->l_vars;
else if (ht == &compat_hashtab)
d = &vimvardict;
else
{
di = find_var_in_ht(ht, *name, (char_u *)"", FALSE);
d = di == NULL ? NULL : di->di_tv.vval.v_dict;
}
if (d == NULL)
{
EMSG2(_(e_intern2), "do_unlet()");
return FAIL;
}
hi = hash_find(ht, varname);
if (!HASHITEM_EMPTY(hi))
{
di = HI2DI(hi);
if (var_check_fixed(di->di_flags, name, FALSE)
|| var_check_ro(di->di_flags, name, FALSE)
|| tv_check_lock(d->dv_lock, name, FALSE))
return FAIL;
delete_var(ht, hi);
return OK;
}
}
if (forceit)
return OK;
EMSG2(_("E108: No such variable: \"%s\""), name);
return FAIL;
}
/*
* Lock or unlock variable indicated by "lp".
* "deep" is the levels to go (-1 for unlimited);
* "lock" is TRUE for ":lockvar", FALSE for ":unlockvar".
*/
static int
do_lock_var(lp, name_end, deep, lock)
lval_T *lp;
char_u *name_end;
int deep;
int lock;
{
int ret = OK;
int cc;
dictitem_T *di;
if (deep == 0) /* nothing to do */
return OK;
if (lp->ll_tv == NULL)
{
cc = *name_end;
*name_end = NUL;
/* Normal name or expanded name. */
if (check_changedtick(lp->ll_name))
ret = FAIL;
else
{
di = find_var(lp->ll_name, NULL, TRUE);
if (di == NULL)
ret = FAIL;
else
{
if (lock)
di->di_flags |= DI_FLAGS_LOCK;
else
di->di_flags &= ~DI_FLAGS_LOCK;
item_lock(&di->di_tv, deep, lock);
}
}
*name_end = cc;
}
else if (lp->ll_range)
{
listitem_T *li = lp->ll_li;
/* (un)lock a range of List items. */
while (li != NULL && (lp->ll_empty2 || lp->ll_n2 >= lp->ll_n1))
{
item_lock(&li->li_tv, deep, lock);
li = li->li_next;
++lp->ll_n1;
}
}
else if (lp->ll_list != NULL)
/* (un)lock a List item. */
item_lock(&lp->ll_li->li_tv, deep, lock);
else
/* (un)lock a Dictionary item. */
item_lock(&lp->ll_di->di_tv, deep, lock);
return ret;
}
/*
* Lock or unlock an item. "deep" is nr of levels to go.
*/
static void
item_lock(tv, deep, lock)
typval_T *tv;
int deep;
int lock;
{
static int recurse = 0;
list_T *l;
listitem_T *li;
dict_T *d;
hashitem_T *hi;
int todo;
if (recurse >= DICT_MAXNEST)
{
EMSG(_("E743: variable nested too deep for (un)lock"));
return;
}
if (deep == 0)
return;
++recurse;
/* lock/unlock the item itself */
if (lock)
tv->v_lock |= VAR_LOCKED;
else
tv->v_lock &= ~VAR_LOCKED;
switch (tv->v_type)
{
case VAR_LIST:
if ((l = tv->vval.v_list) != NULL)
{
if (lock)
l->lv_lock |= VAR_LOCKED;
else
l->lv_lock &= ~VAR_LOCKED;
if (deep < 0 || deep > 1)
/* recursive: lock/unlock the items the List contains */
for (li = l->lv_first; li != NULL; li = li->li_next)
item_lock(&li->li_tv, deep - 1, lock);
}
break;
case VAR_DICT:
if ((d = tv->vval.v_dict) != NULL)
{
if (lock)
d->dv_lock |= VAR_LOCKED;
else
d->dv_lock &= ~VAR_LOCKED;
if (deep < 0 || deep > 1)
{
/* recursive: lock/unlock the items the List contains */
todo = (int)d->dv_hashtab.ht_used;
for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
item_lock(&HI2DI(hi)->di_tv, deep - 1, lock);
}
}
}
}
}
--recurse;
}
/*
* Return TRUE if typeval "tv" is locked: Either that value is locked itself
* or it refers to a List or Dictionary that is locked.
*/
static int
tv_islocked(tv)
typval_T *tv;
{
return (tv->v_lock & VAR_LOCKED)
|| (tv->v_type == VAR_LIST
&& tv->vval.v_list != NULL
&& (tv->vval.v_list->lv_lock & VAR_LOCKED))
|| (tv->v_type == VAR_DICT
&& tv->vval.v_dict != NULL
&& (tv->vval.v_dict->dv_lock & VAR_LOCKED));
}
#if (defined(FEAT_MENU) && defined(FEAT_MULTI_LANG)) || defined(PROTO)
/*
* Delete all "menutrans_" variables.
*/
void
del_menutrans_vars()
{
hashitem_T *hi;
int todo;
hash_lock(&globvarht);
todo = (int)globvarht.ht_used;
for (hi = globvarht.ht_array; todo > 0 && !got_int; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
if (STRNCMP(HI2DI(hi)->di_key, "menutrans_", 10) == 0)
delete_var(&globvarht, hi);
}
}
hash_unlock(&globvarht);
}
#endif
#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
/*
* Local string buffer for the next two functions to store a variable name
* with its prefix. Allocated in cat_prefix_varname(), freed later in
* get_user_var_name().
*/
static char_u *cat_prefix_varname __ARGS((int prefix, char_u *name));
static char_u *varnamebuf = NULL;
static int varnamebuflen = 0;
/*
* Function to concatenate a prefix and a variable name.
*/
static char_u *
cat_prefix_varname(prefix, name)
int prefix;
char_u *name;
{
int len;
len = (int)STRLEN(name) + 3;
if (len > varnamebuflen)
{
vim_free(varnamebuf);
len += 10; /* some additional space */
varnamebuf = alloc(len);
if (varnamebuf == NULL)
{
varnamebuflen = 0;
return NULL;
}
varnamebuflen = len;
}
*varnamebuf = prefix;
varnamebuf[1] = ':';
STRCPY(varnamebuf + 2, name);
return varnamebuf;
}
/*
* Function given to ExpandGeneric() to obtain the list of user defined
* (global/buffer/window/built-in) variable names.
*/
char_u *
get_user_var_name(xp, idx)
expand_T *xp;
int idx;
{
static long_u gdone;
static long_u bdone;
static long_u wdone;
#ifdef FEAT_WINDOWS
static long_u tdone;
#endif
static int vidx;
static hashitem_T *hi;
hashtab_T *ht;
if (idx == 0)
{
gdone = bdone = wdone = vidx = 0;
#ifdef FEAT_WINDOWS
tdone = 0;
#endif
}
/* Global variables */
if (gdone < globvarht.ht_used)
{
if (gdone++ == 0)
hi = globvarht.ht_array;
else
++hi;
while (HASHITEM_EMPTY(hi))
++hi;
if (STRNCMP("g:", xp->xp_pattern, 2) == 0)
return cat_prefix_varname('g', hi->hi_key);
return hi->hi_key;
}
/* b: variables */
ht = &curbuf->b_vars->dv_hashtab;
if (bdone < ht->ht_used)
{
if (bdone++ == 0)
hi = ht->ht_array;
else
++hi;
while (HASHITEM_EMPTY(hi))
++hi;
return cat_prefix_varname('b', hi->hi_key);
}
if (bdone == ht->ht_used)
{
++bdone;
return (char_u *)"b:changedtick";
}
/* w: variables */
ht = &curwin->w_vars->dv_hashtab;
if (wdone < ht->ht_used)
{
if (wdone++ == 0)
hi = ht->ht_array;
else
++hi;
while (HASHITEM_EMPTY(hi))
++hi;
return cat_prefix_varname('w', hi->hi_key);
}
#ifdef FEAT_WINDOWS
/* t: variables */
ht = &curtab->tp_vars->dv_hashtab;
if (tdone < ht->ht_used)
{
if (tdone++ == 0)
hi = ht->ht_array;
else
++hi;
while (HASHITEM_EMPTY(hi))
++hi;
return cat_prefix_varname('t', hi->hi_key);
}
#endif
/* v: variables */
if (vidx < VV_LEN)
return cat_prefix_varname('v', (char_u *)vimvars[vidx++].vv_name);
vim_free(varnamebuf);
varnamebuf = NULL;
varnamebuflen = 0;
return NULL;
}
#endif /* FEAT_CMDL_COMPL */
/*
* types for expressions.
*/
typedef enum
{
TYPE_UNKNOWN = 0
, TYPE_EQUAL /* == */
, TYPE_NEQUAL /* != */
, TYPE_GREATER /* > */
, TYPE_GEQUAL /* >= */
, TYPE_SMALLER /* < */
, TYPE_SEQUAL /* <= */
, TYPE_MATCH /* =~ */
, TYPE_NOMATCH /* !~ */
} exptype_T;
/*
* The "evaluate" argument: When FALSE, the argument is only parsed but not
* executed. The function may return OK, but the rettv will be of type
* VAR_UNKNOWN. The function still returns FAIL for a syntax error.
*/
/*
* Handle zero level expression.
* This calls eval1() and handles error message and nextcmd.
* Put the result in "rettv" when returning OK and "evaluate" is TRUE.
* Note: "rettv.v_lock" is not set.
* Return OK or FAIL.
*/
static int
eval0(arg, rettv, nextcmd, evaluate)
char_u *arg;
typval_T *rettv;
char_u **nextcmd;
int evaluate;
{
int ret;
char_u *p;
p = skipwhite(arg);
ret = eval1(&p, rettv, evaluate);
if (ret == FAIL || !ends_excmd(*p))
{
if (ret != FAIL)
clear_tv(rettv);
/*
* Report the invalid expression unless the expression evaluation has
* been cancelled due to an aborting error, an interrupt, or an
* exception.
*/
if (!aborting())
EMSG2(_(e_invexpr2), arg);
ret = FAIL;
}
if (nextcmd != NULL)
*nextcmd = check_nextcmd(p);
return ret;
}
/*
* Handle top level expression:
* expr2 ? expr1 : expr1
*
* "arg" must point to the first non-white of the expression.
* "arg" is advanced to the next non-white after the recognized expression.
*
* Note: "rettv.v_lock" is not set.
*
* Return OK or FAIL.
*/
static int
eval1(arg, rettv, evaluate)
char_u **arg;
typval_T *rettv;
int evaluate;
{
int result;
typval_T var2;
/*
* Get the first variable.
*/
if (eval2(arg, rettv, evaluate) == FAIL)
return FAIL;
if ((*arg)[0] == '?')
{
result = FALSE;
if (evaluate)
{
int error = FALSE;
if (get_tv_number_chk(rettv, &error) != 0)
result = TRUE;
clear_tv(rettv);
if (error)
return FAIL;
}
/*
* Get the second variable.
*/
*arg = skipwhite(*arg + 1);
if (eval1(arg, rettv, evaluate && result) == FAIL) /* recursive! */
return FAIL;
/*
* Check for the ":".
*/
if ((*arg)[0] != ':')
{
EMSG(_("E109: Missing ':' after '?'"));
if (evaluate && result)
clear_tv(rettv);
return FAIL;
}
/*
* Get the third variable.
*/
*arg = skipwhite(*arg + 1);
if (eval1(arg, &var2, evaluate && !result) == FAIL) /* recursive! */
{
if (evaluate && result)
clear_tv(rettv);
return FAIL;
}
if (evaluate && !result)
*rettv = var2;
}
return OK;
}
/*
* Handle first level expression:
* expr2 || expr2 || expr2 logical OR
*
* "arg" must point to the first non-white of the expression.
* "arg" is advanced to the next non-white after the recognized expression.
*
* Return OK or FAIL.
*/
static int
eval2(arg, rettv, evaluate)
char_u **arg;
typval_T *rettv;
int evaluate;
{
typval_T var2;
long result;
int first;
int error = FALSE;
/*
* Get the first variable.
*/
if (eval3(arg, rettv, evaluate) == FAIL)
return FAIL;
/*
* Repeat until there is no following "||".
*/
first = TRUE;
result = FALSE;
while ((*arg)[0] == '|' && (*arg)[1] == '|')
{
if (evaluate && first)
{
if (get_tv_number_chk(rettv, &error) != 0)
result = TRUE;
clear_tv(rettv);
if (error)
return FAIL;
first = FALSE;
}
/*
* Get the second variable.
*/
*arg = skipwhite(*arg + 2);
if (eval3(arg, &var2, evaluate && !result) == FAIL)
return FAIL;
/*
* Compute the result.
*/
if (evaluate && !result)
{
if (get_tv_number_chk(&var2, &error) != 0)
result = TRUE;
clear_tv(&var2);
if (error)
return FAIL;
}
if (evaluate)
{
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = result;
}
}
return OK;
}
/*
* Handle second level expression:
* expr3 && expr3 && expr3 logical AND
*
* "arg" must point to the first non-white of the expression.
* "arg" is advanced to the next non-white after the recognized expression.
*
* Return OK or FAIL.
*/
static int
eval3(arg, rettv, evaluate)
char_u **arg;
typval_T *rettv;
int evaluate;
{
typval_T var2;
long result;
int first;
int error = FALSE;
/*
* Get the first variable.
*/
if (eval4(arg, rettv, evaluate) == FAIL)
return FAIL;
/*
* Repeat until there is no following "&&".
*/
first = TRUE;
result = TRUE;
while ((*arg)[0] == '&' && (*arg)[1] == '&')
{
if (evaluate && first)
{
if (get_tv_number_chk(rettv, &error) == 0)
result = FALSE;
clear_tv(rettv);
if (error)
return FAIL;
first = FALSE;
}
/*
* Get the second variable.
*/
*arg = skipwhite(*arg + 2);
if (eval4(arg, &var2, evaluate && result) == FAIL)
return FAIL;
/*
* Compute the result.
*/
if (evaluate && result)
{
if (get_tv_number_chk(&var2, &error) == 0)
result = FALSE;
clear_tv(&var2);
if (error)
return FAIL;
}
if (evaluate)
{
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = result;
}
}
return OK;
}
/*
* Handle third level expression:
* var1 == var2
* var1 =~ var2
* var1 != var2
* var1 !~ var2
* var1 > var2
* var1 >= var2
* var1 < var2
* var1 <= var2
* var1 is var2
* var1 isnot var2
*
* "arg" must point to the first non-white of the expression.
* "arg" is advanced to the next non-white after the recognized expression.
*
* Return OK or FAIL.
*/
static int
eval4(arg, rettv, evaluate)
char_u **arg;
typval_T *rettv;
int evaluate;
{
typval_T var2;
char_u *p;
int i;
exptype_T type = TYPE_UNKNOWN;
int type_is = FALSE; /* TRUE for "is" and "isnot" */
int len = 2;
long n1, n2;
char_u *s1, *s2;
char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN];
regmatch_T regmatch;
int ic;
char_u *save_cpo;
/*
* Get the first variable.
*/
if (eval5(arg, rettv, evaluate) == FAIL)
return FAIL;
p = *arg;
switch (p[0])
{
case '=': if (p[1] == '=')
type = TYPE_EQUAL;
else if (p[1] == '~')
type = TYPE_MATCH;
break;
case '!': if (p[1] == '=')
type = TYPE_NEQUAL;
else if (p[1] == '~')
type = TYPE_NOMATCH;
break;
case '>': if (p[1] != '=')
{
type = TYPE_GREATER;
len = 1;
}
else
type = TYPE_GEQUAL;
break;
case '<': if (p[1] != '=')
{
type = TYPE_SMALLER;
len = 1;
}
else
type = TYPE_SEQUAL;
break;
case 'i': if (p[1] == 's')
{
if (p[2] == 'n' && p[3] == 'o' && p[4] == 't')
len = 5;
i = p[len];
if (!isalnum(i) && i != '_')
{
type = len == 2 ? TYPE_EQUAL : TYPE_NEQUAL;
type_is = TRUE;
}
}
break;
}
/*
* If there is a comparative operator, use it.
*/
if (type != TYPE_UNKNOWN)
{
/* extra question mark appended: ignore case */
if (p[len] == '?')
{
ic = TRUE;
++len;
}
/* extra '#' appended: match case */
else if (p[len] == '#')
{
ic = FALSE;
++len;
}
/* nothing appended: use 'ignorecase' */
else
ic = p_ic;
/*
* Get the second variable.
*/
*arg = skipwhite(p + len);
if (eval5(arg, &var2, evaluate) == FAIL)
{
clear_tv(rettv);
return FAIL;
}
if (evaluate)
{
if (type_is && rettv->v_type != var2.v_type)
{
/* For "is" a different type always means FALSE, for "notis"
* it means TRUE. */
n1 = (type == TYPE_NEQUAL);
}
else if (rettv->v_type == VAR_LIST || var2.v_type == VAR_LIST)
{
if (type_is)
{
n1 = (rettv->v_type == var2.v_type
&& rettv->vval.v_list == var2.vval.v_list);
if (type == TYPE_NEQUAL)
n1 = !n1;
}
else if (rettv->v_type != var2.v_type
|| (type != TYPE_EQUAL && type != TYPE_NEQUAL))
{
if (rettv->v_type != var2.v_type)
EMSG(_("E691: Can only compare List with List"));
else
EMSG(_("E692: Invalid operation for List"));
clear_tv(rettv);
clear_tv(&var2);
return FAIL;
}
else
{
/* Compare two Lists for being equal or unequal. */
n1 = list_equal(rettv->vval.v_list, var2.vval.v_list,
ic, FALSE);
if (type == TYPE_NEQUAL)
n1 = !n1;
}
}
else if (rettv->v_type == VAR_DICT || var2.v_type == VAR_DICT)
{
if (type_is)
{
n1 = (rettv->v_type == var2.v_type
&& rettv->vval.v_dict == var2.vval.v_dict);
if (type == TYPE_NEQUAL)
n1 = !n1;
}
else if (rettv->v_type != var2.v_type
|| (type != TYPE_EQUAL && type != TYPE_NEQUAL))
{
if (rettv->v_type != var2.v_type)
EMSG(_("E735: Can only compare Dictionary with Dictionary"));
else
EMSG(_("E736: Invalid operation for Dictionary"));
clear_tv(rettv);
clear_tv(&var2);
return FAIL;
}
else
{
/* Compare two Dictionaries for being equal or unequal. */
n1 = dict_equal(rettv->vval.v_dict, var2.vval.v_dict,
ic, FALSE);
if (type == TYPE_NEQUAL)
n1 = !n1;
}
}
else if (rettv->v_type == VAR_FUNC || var2.v_type == VAR_FUNC)
{
if (rettv->v_type != var2.v_type
|| (type != TYPE_EQUAL && type != TYPE_NEQUAL))
{
if (rettv->v_type != var2.v_type)
EMSG(_("E693: Can only compare Funcref with Funcref"));
else
EMSG(_("E694: Invalid operation for Funcrefs"));
clear_tv(rettv);
clear_tv(&var2);
return FAIL;
}
else
{
/* Compare two Funcrefs for being equal or unequal. */
if (rettv->vval.v_string == NULL
|| var2.vval.v_string == NULL)
n1 = FALSE;
else
n1 = STRCMP(rettv->vval.v_string,
var2.vval.v_string) == 0;
if (type == TYPE_NEQUAL)
n1 = !n1;
}
}
#ifdef FEAT_FLOAT
/*
* If one of the two variables is a float, compare as a float.
* When using "=~" or "!~", always compare as string.
*/
else if ((rettv->v_type == VAR_FLOAT || var2.v_type == VAR_FLOAT)
&& type != TYPE_MATCH && type != TYPE_NOMATCH)
{
float_T f1, f2;
if (rettv->v_type == VAR_FLOAT)
f1 = rettv->vval.v_float;
else
f1 = get_tv_number(rettv);
if (var2.v_type == VAR_FLOAT)
f2 = var2.vval.v_float;
else
f2 = get_tv_number(&var2);
n1 = FALSE;
switch (type)
{
case TYPE_EQUAL: n1 = (f1 == f2); break;
case TYPE_NEQUAL: n1 = (f1 != f2); break;
case TYPE_GREATER: n1 = (f1 > f2); break;
case TYPE_GEQUAL: n1 = (f1 >= f2); break;
case TYPE_SMALLER: n1 = (f1 < f2); break;
case TYPE_SEQUAL: n1 = (f1 <= f2); break;
case TYPE_UNKNOWN:
case TYPE_MATCH:
case TYPE_NOMATCH: break; /* avoid gcc warning */
}
}
#endif
/*
* If one of the two variables is a number, compare as a number.
* When using "=~" or "!~", always compare as string.
*/
else if ((rettv->v_type == VAR_NUMBER || var2.v_type == VAR_NUMBER)
&& type != TYPE_MATCH && type != TYPE_NOMATCH)
{
n1 = get_tv_number(rettv);
n2 = get_tv_number(&var2);
switch (type)
{
case TYPE_EQUAL: n1 = (n1 == n2); break;
case TYPE_NEQUAL: n1 = (n1 != n2); break;
case TYPE_GREATER: n1 = (n1 > n2); break;
case TYPE_GEQUAL: n1 = (n1 >= n2); break;
case TYPE_SMALLER: n1 = (n1 < n2); break;
case TYPE_SEQUAL: n1 = (n1 <= n2); break;
case TYPE_UNKNOWN:
case TYPE_MATCH:
case TYPE_NOMATCH: break; /* avoid gcc warning */
}
}
else
{
s1 = get_tv_string_buf(rettv, buf1);
s2 = get_tv_string_buf(&var2, buf2);
if (type != TYPE_MATCH && type != TYPE_NOMATCH)
i = ic ? MB_STRICMP(s1, s2) : STRCMP(s1, s2);
else
i = 0;
n1 = FALSE;
switch (type)
{
case TYPE_EQUAL: n1 = (i == 0); break;
case TYPE_NEQUAL: n1 = (i != 0); break;
case TYPE_GREATER: n1 = (i > 0); break;
case TYPE_GEQUAL: n1 = (i >= 0); break;
case TYPE_SMALLER: n1 = (i < 0); break;
case TYPE_SEQUAL: n1 = (i <= 0); break;
case TYPE_MATCH:
case TYPE_NOMATCH:
/* avoid 'l' flag in 'cpoptions' */
save_cpo = p_cpo;
p_cpo = (char_u *)"";
regmatch.regprog = vim_regcomp(s2,
RE_MAGIC + RE_STRING);
regmatch.rm_ic = ic;
if (regmatch.regprog != NULL)
{
n1 = vim_regexec_nl(&regmatch, s1, (colnr_T)0);
vim_regfree(regmatch.regprog);
if (type == TYPE_NOMATCH)
n1 = !n1;
}
p_cpo = save_cpo;
break;
case TYPE_UNKNOWN: break; /* avoid gcc warning */
}
}
clear_tv(rettv);
clear_tv(&var2);
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = n1;
}
}
return OK;
}
/*
* Handle fourth level expression:
* + number addition
* - number subtraction
* . string concatenation
*
* "arg" must point to the first non-white of the expression.
* "arg" is advanced to the next non-white after the recognized expression.
*
* Return OK or FAIL.
*/
static int
eval5(arg, rettv, evaluate)
char_u **arg;
typval_T *rettv;
int evaluate;
{
typval_T var2;
typval_T var3;
int op;
long n1, n2;
#ifdef FEAT_FLOAT
float_T f1 = 0, f2 = 0;
#endif
char_u *s1, *s2;
char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN];
char_u *p;
/*
* Get the first variable.
*/
if (eval6(arg, rettv, evaluate, FALSE) == FAIL)
return FAIL;
/*
* Repeat computing, until no '+', '-' or '.' is following.
*/
for (;;)
{
op = **arg;
if (op != '+' && op != '-' && op != '.')
break;
if ((op != '+' || rettv->v_type != VAR_LIST)
#ifdef FEAT_FLOAT
&& (op == '.' || rettv->v_type != VAR_FLOAT)
#endif
)
{
/* For "list + ...", an illegal use of the first operand as
* a number cannot be determined before evaluating the 2nd
* operand: if this is also a list, all is ok.
* For "something . ...", "something - ..." or "non-list + ...",
* we know that the first operand needs to be a string or number
* without evaluating the 2nd operand. So check before to avoid
* side effects after an error. */
if (evaluate && get_tv_string_chk(rettv) == NULL)
{
clear_tv(rettv);
return FAIL;
}
}
/*
* Get the second variable.
*/
*arg = skipwhite(*arg + 1);
if (eval6(arg, &var2, evaluate, op == '.') == FAIL)
{
clear_tv(rettv);
return FAIL;
}
if (evaluate)
{
/*
* Compute the result.
*/
if (op == '.')
{
s1 = get_tv_string_buf(rettv, buf1); /* already checked */
s2 = get_tv_string_buf_chk(&var2, buf2);
if (s2 == NULL) /* type error ? */
{
clear_tv(rettv);
clear_tv(&var2);
return FAIL;
}
p = concat_str(s1, s2);
clear_tv(rettv);
rettv->v_type = VAR_STRING;
rettv->vval.v_string = p;
}
else if (op == '+' && rettv->v_type == VAR_LIST
&& var2.v_type == VAR_LIST)
{
/* concatenate Lists */
if (list_concat(rettv->vval.v_list, var2.vval.v_list,
&var3) == FAIL)
{
clear_tv(rettv);
clear_tv(&var2);
return FAIL;
}
clear_tv(rettv);
*rettv = var3;
}
else
{
int error = FALSE;
#ifdef FEAT_FLOAT
if (rettv->v_type == VAR_FLOAT)
{
f1 = rettv->vval.v_float;
n1 = 0;
}
else
#endif
{
n1 = get_tv_number_chk(rettv, &error);
if (error)
{
/* This can only happen for "list + non-list". For
* "non-list + ..." or "something - ...", we returned
* before evaluating the 2nd operand. */
clear_tv(rettv);
return FAIL;
}
#ifdef FEAT_FLOAT
if (var2.v_type == VAR_FLOAT)
f1 = n1;
#endif
}
#ifdef FEAT_FLOAT
if (var2.v_type == VAR_FLOAT)
{
f2 = var2.vval.v_float;
n2 = 0;
}
else
#endif
{
n2 = get_tv_number_chk(&var2, &error);
if (error)
{
clear_tv(rettv);
clear_tv(&var2);
return FAIL;
}
#ifdef FEAT_FLOAT
if (rettv->v_type == VAR_FLOAT)
f2 = n2;
#endif
}
clear_tv(rettv);
#ifdef FEAT_FLOAT
/* If there is a float on either side the result is a float. */
if (rettv->v_type == VAR_FLOAT || var2.v_type == VAR_FLOAT)
{
if (op == '+')
f1 = f1 + f2;
else
f1 = f1 - f2;
rettv->v_type = VAR_FLOAT;
rettv->vval.v_float = f1;
}
else
#endif
{
if (op == '+')
n1 = n1 + n2;
else
n1 = n1 - n2;
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = n1;
}
}
clear_tv(&var2);
}
}
return OK;
}
/*
* Handle fifth level expression:
* * number multiplication
* / number division
* % number modulo
*
* "arg" must point to the first non-white of the expression.
* "arg" is advanced to the next non-white after the recognized expression.
*
* Return OK or FAIL.
*/
static int
eval6(arg, rettv, evaluate, want_string)
char_u **arg;
typval_T *rettv;
int evaluate;
int want_string; /* after "." operator */
{
typval_T var2;
int op;
long n1, n2;
#ifdef FEAT_FLOAT
int use_float = FALSE;
float_T f1 = 0, f2;
#endif
int error = FALSE;
/*
* Get the first variable.
*/
if (eval7(arg, rettv, evaluate, want_string) == FAIL)
return FAIL;
/*
* Repeat computing, until no '*', '/' or '%' is following.
*/
for (;;)
{
op = **arg;
if (op != '*' && op != '/' && op != '%')
break;
if (evaluate)
{
#ifdef FEAT_FLOAT
if (rettv->v_type == VAR_FLOAT)
{
f1 = rettv->vval.v_float;
use_float = TRUE;
n1 = 0;
}
else
#endif
n1 = get_tv_number_chk(rettv, &error);
clear_tv(rettv);
if (error)
return FAIL;
}
else
n1 = 0;
/*
* Get the second variable.
*/
*arg = skipwhite(*arg + 1);
if (eval7(arg, &var2, evaluate, FALSE) == FAIL)
return FAIL;
if (evaluate)
{
#ifdef FEAT_FLOAT
if (var2.v_type == VAR_FLOAT)
{
if (!use_float)
{
f1 = n1;
use_float = TRUE;
}
f2 = var2.vval.v_float;
n2 = 0;
}
else
#endif
{
n2 = get_tv_number_chk(&var2, &error);
clear_tv(&var2);
if (error)
return FAIL;
#ifdef FEAT_FLOAT
if (use_float)
f2 = n2;
#endif
}
/*
* Compute the result.
* When either side is a float the result is a float.
*/
#ifdef FEAT_FLOAT
if (use_float)
{
if (op == '*')
f1 = f1 * f2;
else if (op == '/')
{
# ifdef VMS
/* VMS crashes on divide by zero, work around it */
if (f2 == 0.0)
{
if (f1 == 0)
f1 = -1 * __F_FLT_MAX - 1L; /* similar to NaN */
else if (f1 < 0)
f1 = -1 * __F_FLT_MAX;
else
f1 = __F_FLT_MAX;
}
else
f1 = f1 / f2;
# else
/* We rely on the floating point library to handle divide
* by zero to result in "inf" and not a crash. */
f1 = f1 / f2;
# endif
}
else
{
EMSG(_("E804: Cannot use '%' with Float"));
return FAIL;
}
rettv->v_type = VAR_FLOAT;
rettv->vval.v_float = f1;
}
else
#endif
{
if (op == '*')
n1 = n1 * n2;
else if (op == '/')
{
if (n2 == 0) /* give an error message? */
{
if (n1 == 0)
n1 = -0x7fffffffL - 1L; /* similar to NaN */
else if (n1 < 0)
n1 = -0x7fffffffL;
else
n1 = 0x7fffffffL;
}
else
n1 = n1 / n2;
}
else
{
if (n2 == 0) /* give an error message? */
n1 = 0;
else
n1 = n1 % n2;
}
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = n1;
}
}
}
return OK;
}
/*
* Handle sixth level expression:
* number number constant
* "string" string constant
* 'string' literal string constant
* &option-name option value
* @r register contents
* identifier variable value
* function() function call
* $VAR environment variable
* (expression) nested expression
* [expr, expr] List
* {key: val, key: val} Dictionary
*
* Also handle:
* ! in front logical NOT
* - in front unary minus
* + in front unary plus (ignored)
* trailing [] subscript in String or List
* trailing .name entry in Dictionary
*
* "arg" must point to the first non-white of the expression.
* "arg" is advanced to the next non-white after the recognized expression.
*
* Return OK or FAIL.
*/
static int
eval7(arg, rettv, evaluate, want_string)
char_u **arg;
typval_T *rettv;
int evaluate;
int want_string UNUSED; /* after "." operator */
{
long n;
int len;
char_u *s;
char_u *start_leader, *end_leader;
int ret = OK;
char_u *alias;
/*
* Initialise variable so that clear_tv() can't mistake this for a
* string and free a string that isn't there.
*/
rettv->v_type = VAR_UNKNOWN;
/*
* Skip '!' and '-' characters. They are handled later.
*/
start_leader = *arg;
while (**arg == '!' || **arg == '-' || **arg == '+')
*arg = skipwhite(*arg + 1);
end_leader = *arg;
switch (**arg)
{
/*
* Number constant.
*/
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
{
#ifdef FEAT_FLOAT
char_u *p = skipdigits(*arg + 1);
int get_float = FALSE;
/* We accept a float when the format matches
* "[0-9]\+\.[0-9]\+\([eE][+-]\?[0-9]\+\)\?". This is very
* strict to avoid backwards compatibility problems.
* Don't look for a float after the "." operator, so that
* ":let vers = 1.2.3" doesn't fail. */
if (!want_string && p[0] == '.' && vim_isdigit(p[1]))
{
get_float = TRUE;
p = skipdigits(p + 2);
if (*p == 'e' || *p == 'E')
{
++p;
if (*p == '-' || *p == '+')
++p;
if (!vim_isdigit(*p))
get_float = FALSE;
else
p = skipdigits(p + 1);
}
if (ASCII_ISALPHA(*p) || *p == '.')
get_float = FALSE;
}
if (get_float)
{
float_T f;
*arg += string2float(*arg, &f);
if (evaluate)
{
rettv->v_type = VAR_FLOAT;
rettv->vval.v_float = f;
}
}
else
#endif
{
vim_str2nr(*arg, NULL, &len, STR2NR_ALL, &n, NULL, 0);
*arg += len;
if (evaluate)
{
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = n;
}
}
break;
}
/*
* String constant: "string".
*/
case '"': ret = get_string_tv(arg, rettv, evaluate);
break;
/*
* Literal string constant: 'str''ing'.
*/
case '\'': ret = get_lit_string_tv(arg, rettv, evaluate);
break;
/*
* List: [expr, expr]
*/
case '[': ret = get_list_tv(arg, rettv, evaluate);
break;
/*
* Dictionary: {key: val, key: val}
*/
case '{': ret = get_dict_tv(arg, rettv, evaluate);
break;
/*
* Option value: &name
*/
case '&': ret = get_option_tv(arg, rettv, evaluate);
break;
/*
* Environment variable: $VAR.
*/
case '$': ret = get_env_tv(arg, rettv, evaluate);
break;
/*
* Register contents: @r.
*/
case '@': ++*arg;
if (evaluate)
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = get_reg_contents(**arg,
GREG_EXPR_SRC);
}
if (**arg != NUL)
++*arg;
break;
/*
* nested expression: (expression).
*/
case '(': *arg = skipwhite(*arg + 1);
ret = eval1(arg, rettv, evaluate); /* recursive! */
if (**arg == ')')
++*arg;
else if (ret == OK)
{
EMSG(_("E110: Missing ')'"));
clear_tv(rettv);
ret = FAIL;
}
break;
default: ret = NOTDONE;
break;
}
if (ret == NOTDONE)
{
/*
* Must be a variable or function name.
* Can also be a curly-braces kind of name: {expr}.
*/
s = *arg;
len = get_name_len(arg, &alias, evaluate, TRUE);
if (alias != NULL)
s = alias;
if (len <= 0)
ret = FAIL;
else
{
if (**arg == '(') /* recursive! */
{
/* If "s" is the name of a variable of type VAR_FUNC
* use its contents. */
s = deref_func_name(s, &len, !evaluate);
/* Invoke the function. */
ret = get_func_tv(s, len, rettv, arg,
curwin->w_cursor.lnum, curwin->w_cursor.lnum,
&len, evaluate, NULL);
/* If evaluate is FALSE rettv->v_type was not set in
* get_func_tv, but it's needed in handle_subscript() to parse
* what follows. So set it here. */
if (rettv->v_type == VAR_UNKNOWN && !evaluate && **arg == '(')
{
rettv->vval.v_string = vim_strsave((char_u *)"");
rettv->v_type = VAR_FUNC;
}
/* Stop the expression evaluation when immediately
* aborting on error, or when an interrupt occurred or
* an exception was thrown but not caught. */
if (aborting())
{
if (ret == OK)
clear_tv(rettv);
ret = FAIL;
}
}
else if (evaluate)
ret = get_var_tv(s, len, rettv, NULL, TRUE, FALSE);
else
ret = OK;
}
vim_free(alias);
}
*arg = skipwhite(*arg);
/* Handle following '[', '(' and '.' for expr[expr], expr.name,
* expr(expr). */
if (ret == OK)
ret = handle_subscript(arg, rettv, evaluate, TRUE);
/*
* Apply logical NOT and unary '-', from right to left, ignore '+'.
*/
if (ret == OK && evaluate && end_leader > start_leader)
{
int error = FALSE;
int val = 0;
#ifdef FEAT_FLOAT
float_T f = 0.0;
if (rettv->v_type == VAR_FLOAT)
f = rettv->vval.v_float;
else
#endif
val = get_tv_number_chk(rettv, &error);
if (error)
{
clear_tv(rettv);
ret = FAIL;
}
else
{
while (end_leader > start_leader)
{
--end_leader;
if (*end_leader == '!')
{
#ifdef FEAT_FLOAT
if (rettv->v_type == VAR_FLOAT)
f = !f;
else
#endif
val = !val;
}
else if (*end_leader == '-')
{
#ifdef FEAT_FLOAT
if (rettv->v_type == VAR_FLOAT)
f = -f;
else
#endif
val = -val;
}
}
#ifdef FEAT_FLOAT
if (rettv->v_type == VAR_FLOAT)
{
clear_tv(rettv);
rettv->vval.v_float = f;
}
else
#endif
{
clear_tv(rettv);
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = val;
}
}
}
return ret;
}
/*
* Evaluate an "[expr]" or "[expr:expr]" index. Also "dict.key".
* "*arg" points to the '[' or '.'.
* Returns FAIL or OK. "*arg" is advanced to after the ']'.
*/
static int
eval_index(arg, rettv, evaluate, verbose)
char_u **arg;
typval_T *rettv;
int evaluate;
int verbose; /* give error messages */
{
int empty1 = FALSE, empty2 = FALSE;
typval_T var1, var2;
long n1, n2 = 0;
long len = -1;
int range = FALSE;
char_u *s;
char_u *key = NULL;
if (rettv->v_type == VAR_FUNC)
{
if (verbose)
EMSG(_("E695: Cannot index a Funcref"));
return FAIL;
}
#ifdef FEAT_FLOAT
else if (rettv->v_type == VAR_FLOAT)
{
if (verbose)
EMSG(_(e_float_as_string));
return FAIL;
}
#endif
init_tv(&var1);
init_tv(&var2);
if (**arg == '.')
{
/*
* dict.name
*/
key = *arg + 1;
for (len = 0; ASCII_ISALNUM(key[len]) || key[len] == '_'; ++len)
;
if (len == 0)
return FAIL;
*arg = skipwhite(key + len);
}
else
{
/*
* something[idx]
*
* Get the (first) variable from inside the [].
*/
*arg = skipwhite(*arg + 1);
if (**arg == ':')
empty1 = TRUE;
else if (eval1(arg, &var1, evaluate) == FAIL) /* recursive! */
return FAIL;
else if (evaluate && get_tv_string_chk(&var1) == NULL)
{
/* not a number or string */
clear_tv(&var1);
return FAIL;
}
/*
* Get the second variable from inside the [:].
*/
if (**arg == ':')
{
range = TRUE;
*arg = skipwhite(*arg + 1);
if (**arg == ']')
empty2 = TRUE;
else if (eval1(arg, &var2, evaluate) == FAIL) /* recursive! */
{
if (!empty1)
clear_tv(&var1);
return FAIL;
}
else if (evaluate && get_tv_string_chk(&var2) == NULL)
{
/* not a number or string */
if (!empty1)
clear_tv(&var1);
clear_tv(&var2);
return FAIL;
}
}
/* Check for the ']'. */
if (**arg != ']')
{
if (verbose)
EMSG(_(e_missbrac));
clear_tv(&var1);
if (range)
clear_tv(&var2);
return FAIL;
}
*arg = skipwhite(*arg + 1); /* skip the ']' */
}
if (evaluate)
{
n1 = 0;
if (!empty1 && rettv->v_type != VAR_DICT)
{
n1 = get_tv_number(&var1);
clear_tv(&var1);
}
if (range)
{
if (empty2)
n2 = -1;
else
{
n2 = get_tv_number(&var2);
clear_tv(&var2);
}
}
switch (rettv->v_type)
{
case VAR_NUMBER:
case VAR_STRING:
s = get_tv_string(rettv);
len = (long)STRLEN(s);
if (range)
{
/* The resulting variable is a substring. If the indexes
* are out of range the result is empty. */
if (n1 < 0)
{
n1 = len + n1;
if (n1 < 0)
n1 = 0;
}
if (n2 < 0)
n2 = len + n2;
else if (n2 >= len)
n2 = len;
if (n1 >= len || n2 < 0 || n1 > n2)
s = NULL;
else
s = vim_strnsave(s + n1, (int)(n2 - n1 + 1));
}
else
{
/* The resulting variable is a string of a single
* character. If the index is too big or negative the
* result is empty. */
if (n1 >= len || n1 < 0)
s = NULL;
else
s = vim_strnsave(s + n1, 1);
}
clear_tv(rettv);
rettv->v_type = VAR_STRING;
rettv->vval.v_string = s;
break;
case VAR_LIST:
len = list_len(rettv->vval.v_list);
if (n1 < 0)
n1 = len + n1;
if (!empty1 && (n1 < 0 || n1 >= len))
{
/* For a range we allow invalid values and return an empty
* list. A list index out of range is an error. */
if (!range)
{
if (verbose)
EMSGN(_(e_listidx), n1);
return FAIL;
}
n1 = len;
}
if (range)
{
list_T *l;
listitem_T *item;
if (n2 < 0)
n2 = len + n2;
else if (n2 >= len)
n2 = len - 1;
if (!empty2 && (n2 < 0 || n2 + 1 < n1))
n2 = -1;
l = list_alloc();
if (l == NULL)
return FAIL;
for (item = list_find(rettv->vval.v_list, n1);
n1 <= n2; ++n1)
{
if (list_append_tv(l, &item->li_tv) == FAIL)
{
list_free(l, TRUE);
return FAIL;
}
item = item->li_next;
}
clear_tv(rettv);
rettv->v_type = VAR_LIST;
rettv->vval.v_list = l;
++l->lv_refcount;
}
else
{
copy_tv(&list_find(rettv->vval.v_list, n1)->li_tv, &var1);
clear_tv(rettv);
*rettv = var1;
}
break;
case VAR_DICT:
if (range)
{
if (verbose)
EMSG(_(e_dictrange));
if (len == -1)
clear_tv(&var1);
return FAIL;
}
{
dictitem_T *item;
if (len == -1)
{
key = get_tv_string(&var1);
if (*key == NUL)
{
if (verbose)
EMSG(_(e_emptykey));
clear_tv(&var1);
return FAIL;
}
}
item = dict_find(rettv->vval.v_dict, key, (int)len);
if (item == NULL && verbose)
EMSG2(_(e_dictkey), key);
if (len == -1)
clear_tv(&var1);
if (item == NULL)
return FAIL;
copy_tv(&item->di_tv, &var1);
clear_tv(rettv);
*rettv = var1;
}
break;
}
}
return OK;
}
/*
* Get an option value.
* "arg" points to the '&' or '+' before the option name.
* "arg" is advanced to character after the option name.
* Return OK or FAIL.
*/
static int
get_option_tv(arg, rettv, evaluate)
char_u **arg;
typval_T *rettv; /* when NULL, only check if option exists */
int evaluate;
{
char_u *option_end;
long numval;
char_u *stringval;
int opt_type;
int c;
int working = (**arg == '+'); /* has("+option") */
int ret = OK;
int opt_flags;
/*
* Isolate the option name and find its value.
*/
option_end = find_option_end(arg, &opt_flags);
if (option_end == NULL)
{
if (rettv != NULL)
EMSG2(_("E112: Option name missing: %s"), *arg);
return FAIL;
}
if (!evaluate)
{
*arg = option_end;
return OK;
}
c = *option_end;
*option_end = NUL;
opt_type = get_option_value(*arg, &numval,
rettv == NULL ? NULL : &stringval, opt_flags);
if (opt_type == -3) /* invalid name */
{
if (rettv != NULL)
EMSG2(_("E113: Unknown option: %s"), *arg);
ret = FAIL;
}
else if (rettv != NULL)
{
if (opt_type == -2) /* hidden string option */
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
}
else if (opt_type == -1) /* hidden number option */
{
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = 0;
}
else if (opt_type == 1) /* number option */
{
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = numval;
}
else /* string option */
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = stringval;
}
}
else if (working && (opt_type == -2 || opt_type == -1))
ret = FAIL;
*option_end = c; /* put back for error messages */
*arg = option_end;
return ret;
}
/*
* Allocate a variable for a string constant.
* Return OK or FAIL.
*/
static int
get_string_tv(arg, rettv, evaluate)
char_u **arg;
typval_T *rettv;
int evaluate;
{
char_u *p;
char_u *name;
int extra = 0;
/*
* Find the end of the string, skipping backslashed characters.
*/
for (p = *arg + 1; *p != NUL && *p != '"'; mb_ptr_adv(p))
{
if (*p == '\\' && p[1] != NUL)
{
++p;
/* A "\<x>" form occupies at least 4 characters, and produces up
* to 6 characters: reserve space for 2 extra */
if (*p == '<')
extra += 2;
}
}
if (*p != '"')
{
EMSG2(_("E114: Missing quote: %s"), *arg);
return FAIL;
}
/* If only parsing, set *arg and return here */
if (!evaluate)
{
*arg = p + 1;
return OK;
}
/*
* Copy the string into allocated memory, handling backslashed
* characters.
*/
name = alloc((unsigned)(p - *arg + extra));
if (name == NULL)
return FAIL;
rettv->v_type = VAR_STRING;
rettv->vval.v_string = name;
for (p = *arg + 1; *p != NUL && *p != '"'; )
{
if (*p == '\\')
{
switch (*++p)
{
case 'b': *name++ = BS; ++p; break;
case 'e': *name++ = ESC; ++p; break;
case 'f': *name++ = FF; ++p; break;
case 'n': *name++ = NL; ++p; break;
case 'r': *name++ = CAR; ++p; break;
case 't': *name++ = TAB; ++p; break;
case 'X': /* hex: "\x1", "\x12" */
case 'x':
case 'u': /* Unicode: "\u0023" */
case 'U':
if (vim_isxdigit(p[1]))
{
int n, nr;
int c = toupper(*p);
if (c == 'X')
n = 2;
else if (*p == 'u')
n = 4;
else
n = 8;
nr = 0;
while (--n >= 0 && vim_isxdigit(p[1]))
{
++p;
nr = (nr << 4) + hex2nr(*p);
}
++p;
#ifdef FEAT_MBYTE
/* For "\u" store the number according to
* 'encoding'. */
if (c != 'X')
name += (*mb_char2bytes)(nr, name);
else
#endif
*name++ = nr;
}
break;
/* octal: "\1", "\12", "\123" */
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7': *name = *p++ - '0';
if (*p >= '0' && *p <= '7')
{
*name = (*name << 3) + *p++ - '0';
if (*p >= '0' && *p <= '7')
*name = (*name << 3) + *p++ - '0';
}
++name;
break;
/* Special key, e.g.: "\<C-W>" */
case '<': extra = trans_special(&p, name, TRUE);
if (extra != 0)
{
name += extra;
break;
}
/* FALLTHROUGH */
default: MB_COPY_CHAR(p, name);
break;
}
}
else
MB_COPY_CHAR(p, name);
}
*name = NUL;
*arg = p + 1;
return OK;
}
/*
* Allocate a variable for a 'str''ing' constant.
* Return OK or FAIL.
*/
static int
get_lit_string_tv(arg, rettv, evaluate)
char_u **arg;
typval_T *rettv;
int evaluate;
{
char_u *p;
char_u *str;
int reduce = 0;
/*
* Find the end of the string, skipping ''.
*/
for (p = *arg + 1; *p != NUL; mb_ptr_adv(p))
{
if (*p == '\'')
{
if (p[1] != '\'')
break;
++reduce;
++p;
}
}
if (*p != '\'')
{
EMSG2(_("E115: Missing quote: %s"), *arg);
return FAIL;
}
/* If only parsing return after setting "*arg" */
if (!evaluate)
{
*arg = p + 1;
return OK;
}
/*
* Copy the string into allocated memory, handling '' to ' reduction.
*/
str = alloc((unsigned)((p - *arg) - reduce));
if (str == NULL)
return FAIL;
rettv->v_type = VAR_STRING;
rettv->vval.v_string = str;
for (p = *arg + 1; *p != NUL; )
{
if (*p == '\'')
{
if (p[1] != '\'')
break;
++p;
}
MB_COPY_CHAR(p, str);
}
*str = NUL;
*arg = p + 1;
return OK;
}
/*
* Allocate a variable for a List and fill it from "*arg".
* Return OK or FAIL.
*/
static int
get_list_tv(arg, rettv, evaluate)
char_u **arg;
typval_T *rettv;
int evaluate;
{
list_T *l = NULL;
typval_T tv;
listitem_T *item;
if (evaluate)
{
l = list_alloc();
if (l == NULL)
return FAIL;
}
*arg = skipwhite(*arg + 1);
while (**arg != ']' && **arg != NUL)
{
if (eval1(arg, &tv, evaluate) == FAIL) /* recursive! */
goto failret;
if (evaluate)
{
item = listitem_alloc();
if (item != NULL)
{
item->li_tv = tv;
item->li_tv.v_lock = 0;
list_append(l, item);
}
else
clear_tv(&tv);
}
if (**arg == ']')
break;
if (**arg != ',')
{
EMSG2(_("E696: Missing comma in List: %s"), *arg);
goto failret;
}
*arg = skipwhite(*arg + 1);
}
if (**arg != ']')
{
EMSG2(_("E697: Missing end of List ']': %s"), *arg);
failret:
if (evaluate)
list_free(l, TRUE);
return FAIL;
}
*arg = skipwhite(*arg + 1);
if (evaluate)
{
rettv->v_type = VAR_LIST;
rettv->vval.v_list = l;
++l->lv_refcount;
}
return OK;
}
/*
* Allocate an empty header for a list.
* Caller should take care of the reference count.
*/
list_T *
list_alloc()
{
list_T *l;
l = (list_T *)alloc_clear(sizeof(list_T));
if (l != NULL)
{
/* Prepend the list to the list of lists for garbage collection. */
if (first_list != NULL)
first_list->lv_used_prev = l;
l->lv_used_prev = NULL;
l->lv_used_next = first_list;
first_list = l;
}
return l;
}
/*
* Allocate an empty list for a return value.
* Returns OK or FAIL.
*/
static int
rettv_list_alloc(rettv)
typval_T *rettv;
{
list_T *l = list_alloc();
if (l == NULL)
return FAIL;
rettv->vval.v_list = l;
rettv->v_type = VAR_LIST;
++l->lv_refcount;
return OK;
}
/*
* Unreference a list: decrement the reference count and free it when it
* becomes zero.
*/
void
list_unref(l)
list_T *l;
{
if (l != NULL && --l->lv_refcount <= 0)
list_free(l, TRUE);
}
/*
* Free a list, including all non-container items it points to.
* Ignores the reference count.
*/
void
list_free(l, recurse)
list_T *l;
int recurse; /* Free Lists and Dictionaries recursively. */
{
listitem_T *item;
/* Remove the list from the list of lists for garbage collection. */
if (l->lv_used_prev == NULL)
first_list = l->lv_used_next;
else
l->lv_used_prev->lv_used_next = l->lv_used_next;
if (l->lv_used_next != NULL)
l->lv_used_next->lv_used_prev = l->lv_used_prev;
for (item = l->lv_first; item != NULL; item = l->lv_first)
{
/* Remove the item before deleting it. */
l->lv_first = item->li_next;
if (recurse || (item->li_tv.v_type != VAR_LIST
&& item->li_tv.v_type != VAR_DICT))
clear_tv(&item->li_tv);
vim_free(item);
}
vim_free(l);
}
/*
* Allocate a list item.
* It is not initialized, don't forget to set v_lock.
*/
listitem_T *
listitem_alloc()
{
return (listitem_T *)alloc(sizeof(listitem_T));
}
/*
* Free a list item. Also clears the value. Does not notify watchers.
*/
void
listitem_free(item)
listitem_T *item;
{
clear_tv(&item->li_tv);
vim_free(item);
}
/*
* Remove a list item from a List and free it. Also clears the value.
*/
void
listitem_remove(l, item)
list_T *l;
listitem_T *item;
{
vimlist_remove(l, item, item);
listitem_free(item);
}
/*
* Get the number of items in a list.
*/
static long
list_len(l)
list_T *l;
{
if (l == NULL)
return 0L;
return l->lv_len;
}
/*
* Return TRUE when two lists have exactly the same values.
*/
static int
list_equal(l1, l2, ic, recursive)
list_T *l1;
list_T *l2;
int ic; /* ignore case for strings */
int recursive; /* TRUE when used recursively */
{
listitem_T *item1, *item2;
if (l1 == NULL || l2 == NULL)
return FALSE;
if (l1 == l2)
return TRUE;
if (list_len(l1) != list_len(l2))
return FALSE;
for (item1 = l1->lv_first, item2 = l2->lv_first;
item1 != NULL && item2 != NULL;
item1 = item1->li_next, item2 = item2->li_next)
if (!tv_equal(&item1->li_tv, &item2->li_tv, ic, recursive))
return FALSE;
return item1 == NULL && item2 == NULL;
}
#if defined(FEAT_RUBY) || defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) \
|| defined(FEAT_MZSCHEME) || defined(FEAT_LUA) || defined(PROTO)
/*
* Return the dictitem that an entry in a hashtable points to.
*/
dictitem_T *
dict_lookup(hi)
hashitem_T *hi;
{
return HI2DI(hi);
}
#endif
/*
* Return TRUE when two dictionaries have exactly the same key/values.
*/
static int
dict_equal(d1, d2, ic, recursive)
dict_T *d1;
dict_T *d2;
int ic; /* ignore case for strings */
int recursive; /* TRUE when used recursively */
{
hashitem_T *hi;
dictitem_T *item2;
int todo;
if (d1 == NULL || d2 == NULL)
return FALSE;
if (d1 == d2)
return TRUE;
if (dict_len(d1) != dict_len(d2))
return FALSE;
todo = (int)d1->dv_hashtab.ht_used;
for (hi = d1->dv_hashtab.ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
item2 = dict_find(d2, hi->hi_key, -1);
if (item2 == NULL)
return FALSE;
if (!tv_equal(&HI2DI(hi)->di_tv, &item2->di_tv, ic, recursive))
return FALSE;
--todo;
}
}
return TRUE;
}
static int tv_equal_recurse_limit;
/*
* Return TRUE if "tv1" and "tv2" have the same value.
* Compares the items just like "==" would compare them, but strings and
* numbers are different. Floats and numbers are also different.
*/
static int
tv_equal(tv1, tv2, ic, recursive)
typval_T *tv1;
typval_T *tv2;
int ic; /* ignore case */
int recursive; /* TRUE when used recursively */
{
char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN];
char_u *s1, *s2;
static int recursive_cnt = 0; /* catch recursive loops */
int r;
if (tv1->v_type != tv2->v_type)
return FALSE;
/* Catch lists and dicts that have an endless loop by limiting
* recursiveness to a limit. We guess they are equal then.
* A fixed limit has the problem of still taking an awful long time.
* Reduce the limit every time running into it. That should work fine for
* deeply linked structures that are not recursively linked and catch
* recursiveness quickly. */
if (!recursive)
tv_equal_recurse_limit = 1000;
if (recursive_cnt >= tv_equal_recurse_limit)
{
--tv_equal_recurse_limit;
return TRUE;
}
switch (tv1->v_type)
{
case VAR_LIST:
++recursive_cnt;
r = list_equal(tv1->vval.v_list, tv2->vval.v_list, ic, TRUE);
--recursive_cnt;
return r;
case VAR_DICT:
++recursive_cnt;
r = dict_equal(tv1->vval.v_dict, tv2->vval.v_dict, ic, TRUE);
--recursive_cnt;
return r;
case VAR_FUNC:
return (tv1->vval.v_string != NULL
&& tv2->vval.v_string != NULL
&& STRCMP(tv1->vval.v_string, tv2->vval.v_string) == 0);
case VAR_NUMBER:
return tv1->vval.v_number == tv2->vval.v_number;
#ifdef FEAT_FLOAT
case VAR_FLOAT:
return tv1->vval.v_float == tv2->vval.v_float;
#endif
case VAR_STRING:
s1 = get_tv_string_buf(tv1, buf1);
s2 = get_tv_string_buf(tv2, buf2);
return ((ic ? MB_STRICMP(s1, s2) : STRCMP(s1, s2)) == 0);
}
EMSG2(_(e_intern2), "tv_equal()");
return TRUE;
}
/*
* Locate item with index "n" in list "l" and return it.
* A negative index is counted from the end; -1 is the last item.
* Returns NULL when "n" is out of range.
*/
listitem_T *
list_find(l, n)
list_T *l;
long n;
{
listitem_T *item;
long idx;
if (l == NULL)
return NULL;
/* Negative index is relative to the end. */
if (n < 0)
n = l->lv_len + n;
/* Check for index out of range. */
if (n < 0 || n >= l->lv_len)
return NULL;
/* When there is a cached index may start search from there. */
if (l->lv_idx_item != NULL)
{
if (n < l->lv_idx / 2)
{
/* closest to the start of the list */
item = l->lv_first;
idx = 0;
}
else if (n > (l->lv_idx + l->lv_len) / 2)
{
/* closest to the end of the list */
item = l->lv_last;
idx = l->lv_len - 1;
}
else
{
/* closest to the cached index */
item = l->lv_idx_item;
idx = l->lv_idx;
}
}
else
{
if (n < l->lv_len / 2)
{
/* closest to the start of the list */
item = l->lv_first;
idx = 0;
}
else
{
/* closest to the end of the list */
item = l->lv_last;
idx = l->lv_len - 1;
}
}
while (n > idx)
{
/* search forward */
item = item->li_next;
++idx;
}
while (n < idx)
{
/* search backward */
item = item->li_prev;
--idx;
}
/* cache the used index */
l->lv_idx = idx;
l->lv_idx_item = item;
return item;
}
/*
* Get list item "l[idx]" as a number.
*/
static long
list_find_nr(l, idx, errorp)
list_T *l;
long idx;
int *errorp; /* set to TRUE when something wrong */
{
listitem_T *li;
li = list_find(l, idx);
if (li == NULL)
{
if (errorp != NULL)
*errorp = TRUE;
return -1L;
}
return get_tv_number_chk(&li->li_tv, errorp);
}
/*
* Get list item "l[idx - 1]" as a string. Returns NULL for failure.
*/
char_u *
list_find_str(l, idx)
list_T *l;
long idx;
{
listitem_T *li;
li = list_find(l, idx - 1);
if (li == NULL)
{
EMSGN(_(e_listidx), idx);
return NULL;
}
return get_tv_string(&li->li_tv);
}
/*
* Locate "item" list "l" and return its index.
* Returns -1 when "item" is not in the list.
*/
static long
list_idx_of_item(l, item)
list_T *l;
listitem_T *item;
{
long idx = 0;
listitem_T *li;
if (l == NULL)
return -1;
idx = 0;
for (li = l->lv_first; li != NULL && li != item; li = li->li_next)
++idx;
if (li == NULL)
return -1;
return idx;
}
/*
* Append item "item" to the end of list "l".
*/
void
list_append(l, item)
list_T *l;
listitem_T *item;
{
if (l->lv_last == NULL)
{
/* empty list */
l->lv_first = item;
l->lv_last = item;
item->li_prev = NULL;
}
else
{
l->lv_last->li_next = item;
item->li_prev = l->lv_last;
l->lv_last = item;
}
++l->lv_len;
item->li_next = NULL;
}
/*
* Append typval_T "tv" to the end of list "l".
* Return FAIL when out of memory.
*/
int
list_append_tv(l, tv)
list_T *l;
typval_T *tv;
{
listitem_T *li = listitem_alloc();
if (li == NULL)
return FAIL;
copy_tv(tv, &li->li_tv);
list_append(l, li);
return OK;
}
/*
* Add a dictionary to a list. Used by getqflist().
* Return FAIL when out of memory.
*/
int
list_append_dict(list, dict)
list_T *list;
dict_T *dict;
{
listitem_T *li = listitem_alloc();
if (li == NULL)
return FAIL;
li->li_tv.v_type = VAR_DICT;
li->li_tv.v_lock = 0;
li->li_tv.vval.v_dict = dict;
list_append(list, li);
++dict->dv_refcount;
return OK;
}
/*
* Make a copy of "str" and append it as an item to list "l".
* When "len" >= 0 use "str[len]".
* Returns FAIL when out of memory.
*/
int
list_append_string(l, str, len)
list_T *l;
char_u *str;
int len;
{
listitem_T *li = listitem_alloc();
if (li == NULL)
return FAIL;
list_append(l, li);
li->li_tv.v_type = VAR_STRING;
li->li_tv.v_lock = 0;
if (str == NULL)
li->li_tv.vval.v_string = NULL;
else if ((li->li_tv.vval.v_string = (len >= 0 ? vim_strnsave(str, len)
: vim_strsave(str))) == NULL)
return FAIL;
return OK;
}
/*
* Append "n" to list "l".
* Returns FAIL when out of memory.
*/
static int
list_append_number(l, n)
list_T *l;
varnumber_T n;
{
listitem_T *li;
li = listitem_alloc();
if (li == NULL)
return FAIL;
li->li_tv.v_type = VAR_NUMBER;
li->li_tv.v_lock = 0;
li->li_tv.vval.v_number = n;
list_append(l, li);
return OK;
}
/*
* Insert typval_T "tv" in list "l" before "item".
* If "item" is NULL append at the end.
* Return FAIL when out of memory.
*/
int
list_insert_tv(l, tv, item)
list_T *l;
typval_T *tv;
listitem_T *item;
{
listitem_T *ni = listitem_alloc();
if (ni == NULL)
return FAIL;
copy_tv(tv, &ni->li_tv);
list_insert(l, ni, item);
return OK;
}
void
list_insert(l, ni, item)
list_T *l;
listitem_T *ni;
listitem_T *item;
{
if (item == NULL)
/* Append new item at end of list. */
list_append(l, ni);
else
{
/* Insert new item before existing item. */
ni->li_prev = item->li_prev;
ni->li_next = item;
if (item->li_prev == NULL)
{
l->lv_first = ni;
++l->lv_idx;
}
else
{
item->li_prev->li_next = ni;
l->lv_idx_item = NULL;
}
item->li_prev = ni;
++l->lv_len;
}
}
/*
* Extend "l1" with "l2".
* If "bef" is NULL append at the end, otherwise insert before this item.
* Returns FAIL when out of memory.
*/
static int
list_extend(l1, l2, bef)
list_T *l1;
list_T *l2;
listitem_T *bef;
{
listitem_T *item;
int todo = l2->lv_len;
/* We also quit the loop when we have inserted the original item count of
* the list, avoid a hang when we extend a list with itself. */
for (item = l2->lv_first; item != NULL && --todo >= 0; item = item->li_next)
if (list_insert_tv(l1, &item->li_tv, bef) == FAIL)
return FAIL;
return OK;
}
/*
* Concatenate lists "l1" and "l2" into a new list, stored in "tv".
* Return FAIL when out of memory.
*/
static int
list_concat(l1, l2, tv)
list_T *l1;
list_T *l2;
typval_T *tv;
{
list_T *l;
if (l1 == NULL || l2 == NULL)
return FAIL;
/* make a copy of the first list. */
l = list_copy(l1, FALSE, 0);
if (l == NULL)
return FAIL;
tv->v_type = VAR_LIST;
tv->vval.v_list = l;
/* append all items from the second list */
return list_extend(l, l2, NULL);
}
/*
* Make a copy of list "orig". Shallow if "deep" is FALSE.
* The refcount of the new list is set to 1.
* See item_copy() for "copyID".
* Returns NULL when out of memory.
*/
static list_T *
list_copy(orig, deep, copyID)
list_T *orig;
int deep;
int copyID;
{
list_T *copy;
listitem_T *item;
listitem_T *ni;
if (orig == NULL)
return NULL;
copy = list_alloc();
if (copy != NULL)
{
if (copyID != 0)
{
/* Do this before adding the items, because one of the items may
* refer back to this list. */
orig->lv_copyID = copyID;
orig->lv_copylist = copy;
}
for (item = orig->lv_first; item != NULL && !got_int;
item = item->li_next)
{
ni = listitem_alloc();
if (ni == NULL)
break;
if (deep)
{
if (item_copy(&item->li_tv, &ni->li_tv, deep, copyID) == FAIL)
{
vim_free(ni);
break;
}
}
else
copy_tv(&item->li_tv, &ni->li_tv);
list_append(copy, ni);
}
++copy->lv_refcount;
if (item != NULL)
{
list_unref(copy);
copy = NULL;
}
}
return copy;
}
/*
* Remove items "item" to "item2" from list "l".
* Does not free the listitem or the value!
* This used to be called list_remove, but that conflicts with a Sun header
* file.
*/
void
vimlist_remove(l, item, item2)
list_T *l;
listitem_T *item;
listitem_T *item2;
{
listitem_T *ip;
/* notify watchers */
for (ip = item; ip != NULL; ip = ip->li_next)
{
--l->lv_len;
list_fix_watch(l, ip);
if (ip == item2)
break;
}
if (item2->li_next == NULL)
l->lv_last = item->li_prev;
else
item2->li_next->li_prev = item->li_prev;
if (item->li_prev == NULL)
l->lv_first = item2->li_next;
else
item->li_prev->li_next = item2->li_next;
l->lv_idx_item = NULL;
}
/*
* Return an allocated string with the string representation of a list.
* May return NULL.
*/
static char_u *
list2string(tv, copyID)
typval_T *tv;
int copyID;
{
garray_T ga;
if (tv->vval.v_list == NULL)
return NULL;
ga_init2(&ga, (int)sizeof(char), 80);
ga_append(&ga, '[');
if (list_join(&ga, tv->vval.v_list, (char_u *)", ", FALSE, copyID) == FAIL)
{
vim_free(ga.ga_data);
return NULL;
}
ga_append(&ga, ']');
ga_append(&ga, NUL);
return (char_u *)ga.ga_data;
}
typedef struct join_S {
char_u *s;
char_u *tofree;
} join_T;
static int
list_join_inner(gap, l, sep, echo_style, copyID, join_gap)
garray_T *gap; /* to store the result in */
list_T *l;
char_u *sep;
int echo_style;
int copyID;
garray_T *join_gap; /* to keep each list item string */
{
int i;
join_T *p;
int len;
int sumlen = 0;
int first = TRUE;
char_u *tofree;
char_u numbuf[NUMBUFLEN];
listitem_T *item;
char_u *s;
/* Stringify each item in the list. */
for (item = l->lv_first; item != NULL && !got_int; item = item->li_next)
{
if (echo_style)
s = echo_string(&item->li_tv, &tofree, numbuf, copyID);
else
s = tv2string(&item->li_tv, &tofree, numbuf, copyID);
if (s == NULL)
return FAIL;
len = (int)STRLEN(s);
sumlen += len;
(void)ga_grow(join_gap, 1);
p = ((join_T *)join_gap->ga_data) + (join_gap->ga_len++);
if (tofree != NULL || s != numbuf)
{
p->s = s;
p->tofree = tofree;
}
else
{
p->s = vim_strnsave(s, len);
p->tofree = p->s;
}
line_breakcheck();
if (did_echo_string_emsg) /* recursion error, bail out */
break;
}
/* Allocate result buffer with its total size, avoid re-allocation and
* multiple copy operations. Add 2 for a tailing ']' and NUL. */
if (join_gap->ga_len >= 2)
sumlen += (int)STRLEN(sep) * (join_gap->ga_len - 1);
if (ga_grow(gap, sumlen + 2) == FAIL)
return FAIL;
for (i = 0; i < join_gap->ga_len && !got_int; ++i)
{
if (first)
first = FALSE;
else
ga_concat(gap, sep);
p = ((join_T *)join_gap->ga_data) + i;
if (p->s != NULL)
ga_concat(gap, p->s);
line_breakcheck();
}
return OK;
}
/*
* Join list "l" into a string in "*gap", using separator "sep".
* When "echo_style" is TRUE use String as echoed, otherwise as inside a List.
* Return FAIL or OK.
*/
static int
list_join(gap, l, sep, echo_style, copyID)
garray_T *gap;
list_T *l;
char_u *sep;
int echo_style;
int copyID;
{
garray_T join_ga;
int retval;
join_T *p;
int i;
if (l->lv_len < 1)
return OK; /* nothing to do */
ga_init2(&join_ga, (int)sizeof(join_T), l->lv_len);
retval = list_join_inner(gap, l, sep, echo_style, copyID, &join_ga);
/* Dispose each item in join_ga. */
if (join_ga.ga_data != NULL)
{
p = (join_T *)join_ga.ga_data;
for (i = 0; i < join_ga.ga_len; ++i)
{
vim_free(p->tofree);
++p;
}
ga_clear(&join_ga);
}
return retval;
}
/*
* Garbage collection for lists and dictionaries.
*
* We use reference counts to be able to free most items right away when they
* are no longer used. But for composite items it's possible that it becomes
* unused while the reference count is > 0: When there is a recursive
* reference. Example:
* :let l = [1, 2, 3]
* :let d = {9: l}
* :let l[1] = d
*
* Since this is quite unusual we handle this with garbage collection: every
* once in a while find out which lists and dicts are not referenced from any
* variable.
*
* Here is a good reference text about garbage collection (refers to Python
* but it applies to all reference-counting mechanisms):
* http://python.ca/nas/python/gc/
*/
/*
* Do garbage collection for lists and dicts.
* Return TRUE if some memory was freed.
*/
int
garbage_collect()
{
int copyID;
int abort = FALSE;
buf_T *buf;
win_T *wp;
int i;
funccall_T *fc, **pfc;
int did_free = FALSE;
int did_free_funccal = FALSE;
#ifdef FEAT_WINDOWS
tabpage_T *tp;
#endif
/* Only do this once. */
want_garbage_collect = FALSE;
may_garbage_collect = FALSE;
garbage_collect_at_exit = FALSE;
/* We advance by two because we add one for items referenced through
* previous_funccal. */
current_copyID += COPYID_INC;
copyID = current_copyID;
/*
* 1. Go through all accessible variables and mark all lists and dicts
* with copyID.
*/
/* Don't free variables in the previous_funccal list unless they are only
* referenced through previous_funccal. This must be first, because if
* the item is referenced elsewhere the funccal must not be freed. */
for (fc = previous_funccal; fc != NULL; fc = fc->caller)
{
abort = abort || set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID + 1,
NULL);
abort = abort || set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID + 1,
NULL);
}
/* script-local variables */
for (i = 1; i <= ga_scripts.ga_len; ++i)
abort = abort || set_ref_in_ht(&SCRIPT_VARS(i), copyID, NULL);
/* buffer-local variables */
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
abort = abort || set_ref_in_item(&buf->b_bufvar.di_tv, copyID,
NULL, NULL);
/* window-local variables */
FOR_ALL_TAB_WINDOWS(tp, wp)
abort = abort || set_ref_in_item(&wp->w_winvar.di_tv, copyID,
NULL, NULL);
#ifdef FEAT_AUTOCMD
if (aucmd_win != NULL)
abort = abort || set_ref_in_item(&aucmd_win->w_winvar.di_tv, copyID,
NULL, NULL);
#endif
#ifdef FEAT_WINDOWS
/* tabpage-local variables */
for (tp = first_tabpage; tp != NULL; tp = tp->tp_next)
abort = abort || set_ref_in_item(&tp->tp_winvar.di_tv, copyID,
NULL, NULL);
#endif
/* global variables */
abort = abort || set_ref_in_ht(&globvarht, copyID, NULL);
/* function-local variables */
for (fc = current_funccal; fc != NULL; fc = fc->caller)
{
abort = abort || set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID, NULL);
abort = abort || set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID, NULL);
}
/* v: vars */
abort = abort || set_ref_in_ht(&vimvarht, copyID, NULL);
#ifdef FEAT_LUA
abort = abort || set_ref_in_lua(copyID);
#endif
#ifdef FEAT_PYTHON
abort = abort || set_ref_in_python(copyID);
#endif
#ifdef FEAT_PYTHON3
abort = abort || set_ref_in_python3(copyID);
#endif
if (!abort)
{
/*
* 2. Free lists and dictionaries that are not referenced.
*/
did_free = free_unref_items(copyID);
/*
* 3. Check if any funccal can be freed now.
*/
for (pfc = &previous_funccal; *pfc != NULL; )
{
if (can_free_funccal(*pfc, copyID))
{
fc = *pfc;
*pfc = fc->caller;
free_funccal(fc, TRUE);
did_free = TRUE;
did_free_funccal = TRUE;
}
else
pfc = &(*pfc)->caller;
}
if (did_free_funccal)
/* When a funccal was freed some more items might be garbage
* collected, so run again. */
(void)garbage_collect();
}
else if (p_verbose > 0)
{
verb_msg((char_u *)_("Not enough memory to set references, garbage collection aborted!"));
}
return did_free;
}
/*
* Free lists and dictionaries that are no longer referenced.
*/
static int
free_unref_items(copyID)
int copyID;
{
dict_T *dd, *dd_next;
list_T *ll, *ll_next;
int did_free = FALSE;
/*
* Go through the list of dicts and free items without the copyID.
*/
for (dd = first_dict; dd != NULL; )
{
dd_next = dd->dv_used_next;
if ((dd->dv_copyID & COPYID_MASK) != (copyID & COPYID_MASK))
{
/* Free the Dictionary and ordinary items it contains, but don't
* recurse into Lists and Dictionaries, they will be in the list
* of dicts or list of lists. */
dict_free(dd, FALSE);
did_free = TRUE;
}
dd = dd_next;
}
/*
* Go through the list of lists and free items without the copyID.
* But don't free a list that has a watcher (used in a for loop), these
* are not referenced anywhere.
*/
for (ll = first_list; ll != NULL; )
{
ll_next = ll->lv_used_next;
if ((ll->lv_copyID & COPYID_MASK) != (copyID & COPYID_MASK)
&& ll->lv_watch == NULL)
{
/* Free the List and ordinary items it contains, but don't recurse
* into Lists and Dictionaries, they will be in the list of dicts
* or list of lists. */
list_free(ll, FALSE);
did_free = TRUE;
}
ll = ll_next;
}
return did_free;
}
/*
* Mark all lists and dicts referenced through hashtab "ht" with "copyID".
* "list_stack" is used to add lists to be marked. Can be NULL.
*
* Returns TRUE if setting references failed somehow.
*/
int
set_ref_in_ht(ht, copyID, list_stack)
hashtab_T *ht;
int copyID;
list_stack_T **list_stack;
{
int todo;
int abort = FALSE;
hashitem_T *hi;
hashtab_T *cur_ht;
ht_stack_T *ht_stack = NULL;
ht_stack_T *tempitem;
cur_ht = ht;
for (;;)
{
if (!abort)
{
/* Mark each item in the hashtab. If the item contains a hashtab
* it is added to ht_stack, if it contains a list it is added to
* list_stack. */
todo = (int)cur_ht->ht_used;
for (hi = cur_ht->ht_array; todo > 0; ++hi)
if (!HASHITEM_EMPTY(hi))
{
--todo;
abort = abort || set_ref_in_item(&HI2DI(hi)->di_tv, copyID,
&ht_stack, list_stack);
}
}
if (ht_stack == NULL)
break;
/* take an item from the stack */
cur_ht = ht_stack->ht;
tempitem = ht_stack;
ht_stack = ht_stack->prev;
free(tempitem);
}
return abort;
}
/*
* Mark all lists and dicts referenced through list "l" with "copyID".
* "ht_stack" is used to add hashtabs to be marked. Can be NULL.
*
* Returns TRUE if setting references failed somehow.
*/
int
set_ref_in_list(l, copyID, ht_stack)
list_T *l;
int copyID;
ht_stack_T **ht_stack;
{
listitem_T *li;
int abort = FALSE;
list_T *cur_l;
list_stack_T *list_stack = NULL;
list_stack_T *tempitem;
cur_l = l;
for (;;)
{
if (!abort)
/* Mark each item in the list. If the item contains a hashtab
* it is added to ht_stack, if it contains a list it is added to
* list_stack. */
for (li = cur_l->lv_first; !abort && li != NULL; li = li->li_next)
abort = abort || set_ref_in_item(&li->li_tv, copyID,
ht_stack, &list_stack);
if (list_stack == NULL)
break;
/* take an item from the stack */
cur_l = list_stack->list;
tempitem = list_stack;
list_stack = list_stack->prev;
free(tempitem);
}
return abort;
}
/*
* Mark all lists and dicts referenced through typval "tv" with "copyID".
* "list_stack" is used to add lists to be marked. Can be NULL.
* "ht_stack" is used to add hashtabs to be marked. Can be NULL.
*
* Returns TRUE if setting references failed somehow.
*/
int
set_ref_in_item(tv, copyID, ht_stack, list_stack)
typval_T *tv;
int copyID;
ht_stack_T **ht_stack;
list_stack_T **list_stack;
{
dict_T *dd;
list_T *ll;
int abort = FALSE;
switch (tv->v_type)
{
case VAR_DICT:
dd = tv->vval.v_dict;
if (dd != NULL && dd->dv_copyID != copyID)
{
/* Didn't see this dict yet. */
dd->dv_copyID = copyID;
if (ht_stack == NULL)
{
abort = set_ref_in_ht(&dd->dv_hashtab, copyID, list_stack);
}
else
{
ht_stack_T *newitem = (ht_stack_T*)malloc(
sizeof(ht_stack_T));
if (newitem == NULL)
abort = TRUE;
else
{
newitem->ht = &dd->dv_hashtab;
newitem->prev = *ht_stack;
*ht_stack = newitem;
}
}
}
break;
case VAR_LIST:
ll = tv->vval.v_list;
if (ll != NULL && ll->lv_copyID != copyID)
{
/* Didn't see this list yet. */
ll->lv_copyID = copyID;
if (list_stack == NULL)
{
abort = set_ref_in_list(ll, copyID, ht_stack);
}
else
{
list_stack_T *newitem = (list_stack_T*)malloc(
sizeof(list_stack_T));
if (newitem == NULL)
abort = TRUE;
else
{
newitem->list = ll;
newitem->prev = *list_stack;
*list_stack = newitem;
}
}
}
break;
}
return abort;
}
/*
* Allocate an empty header for a dictionary.
*/
dict_T *
dict_alloc()
{
dict_T *d;
d = (dict_T *)alloc(sizeof(dict_T));
if (d != NULL)
{
/* Add the dict to the list of dicts for garbage collection. */
if (first_dict != NULL)
first_dict->dv_used_prev = d;
d->dv_used_next = first_dict;
d->dv_used_prev = NULL;
first_dict = d;
hash_init(&d->dv_hashtab);
d->dv_lock = 0;
d->dv_scope = 0;
d->dv_refcount = 0;
d->dv_copyID = 0;
}
return d;
}
/*
* Allocate an empty dict for a return value.
* Returns OK or FAIL.
*/
static int
rettv_dict_alloc(rettv)
typval_T *rettv;
{
dict_T *d = dict_alloc();
if (d == NULL)
return FAIL;
rettv->vval.v_dict = d;
rettv->v_type = VAR_DICT;
++d->dv_refcount;
return OK;
}
/*
* Unreference a Dictionary: decrement the reference count and free it when it
* becomes zero.
*/
void
dict_unref(d)
dict_T *d;
{
if (d != NULL && --d->dv_refcount <= 0)
dict_free(d, TRUE);
}
/*
* Free a Dictionary, including all non-container items it contains.
* Ignores the reference count.
*/
void
dict_free(d, recurse)
dict_T *d;
int recurse; /* Free Lists and Dictionaries recursively. */
{
int todo;
hashitem_T *hi;
dictitem_T *di;
/* Remove the dict from the list of dicts for garbage collection. */
if (d->dv_used_prev == NULL)
first_dict = d->dv_used_next;
else
d->dv_used_prev->dv_used_next = d->dv_used_next;
if (d->dv_used_next != NULL)
d->dv_used_next->dv_used_prev = d->dv_used_prev;
/* Lock the hashtab, we don't want it to resize while freeing items. */
hash_lock(&d->dv_hashtab);
todo = (int)d->dv_hashtab.ht_used;
for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
/* Remove the item before deleting it, just in case there is
* something recursive causing trouble. */
di = HI2DI(hi);
hash_remove(&d->dv_hashtab, hi);
if (recurse || (di->di_tv.v_type != VAR_LIST
&& di->di_tv.v_type != VAR_DICT))
clear_tv(&di->di_tv);
vim_free(di);
--todo;
}
}
hash_clear(&d->dv_hashtab);
vim_free(d);
}
/*
* Allocate a Dictionary item.
* The "key" is copied to the new item.
* Note that the value of the item "di_tv" still needs to be initialized!
* Returns NULL when out of memory.
*/
dictitem_T *
dictitem_alloc(key)
char_u *key;
{
dictitem_T *di;
di = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) + STRLEN(key)));
if (di != NULL)
{
STRCPY(di->di_key, key);
di->di_flags = DI_FLAGS_ALLOC;
}
return di;
}
/*
* Make a copy of a Dictionary item.
*/
static dictitem_T *
dictitem_copy(org)
dictitem_T *org;
{
dictitem_T *di;
di = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T)
+ STRLEN(org->di_key)));
if (di != NULL)
{
STRCPY(di->di_key, org->di_key);
di->di_flags = DI_FLAGS_ALLOC;
copy_tv(&org->di_tv, &di->di_tv);
}
return di;
}
/*
* Remove item "item" from Dictionary "dict" and free it.
*/
static void
dictitem_remove(dict, item)
dict_T *dict;
dictitem_T *item;
{
hashitem_T *hi;
hi = hash_find(&dict->dv_hashtab, item->di_key);
if (HASHITEM_EMPTY(hi))
EMSG2(_(e_intern2), "dictitem_remove()");
else
hash_remove(&dict->dv_hashtab, hi);
dictitem_free(item);
}
/*
* Free a dict item. Also clears the value.
*/
void
dictitem_free(item)
dictitem_T *item;
{
clear_tv(&item->di_tv);
if (item->di_flags & DI_FLAGS_ALLOC)
vim_free(item);
}
/*
* Make a copy of dict "d". Shallow if "deep" is FALSE.
* The refcount of the new dict is set to 1.
* See item_copy() for "copyID".
* Returns NULL when out of memory.
*/
static dict_T *
dict_copy(orig, deep, copyID)
dict_T *orig;
int deep;
int copyID;
{
dict_T *copy;
dictitem_T *di;
int todo;
hashitem_T *hi;
if (orig == NULL)
return NULL;
copy = dict_alloc();
if (copy != NULL)
{
if (copyID != 0)
{
orig->dv_copyID = copyID;
orig->dv_copydict = copy;
}
todo = (int)orig->dv_hashtab.ht_used;
for (hi = orig->dv_hashtab.ht_array; todo > 0 && !got_int; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
di = dictitem_alloc(hi->hi_key);
if (di == NULL)
break;
if (deep)
{
if (item_copy(&HI2DI(hi)->di_tv, &di->di_tv, deep,
copyID) == FAIL)
{
vim_free(di);
break;
}
}
else
copy_tv(&HI2DI(hi)->di_tv, &di->di_tv);
if (dict_add(copy, di) == FAIL)
{
dictitem_free(di);
break;
}
}
}
++copy->dv_refcount;
if (todo > 0)
{
dict_unref(copy);
copy = NULL;
}
}
return copy;
}
/*
* Add item "item" to Dictionary "d".
* Returns FAIL when out of memory and when key already exists.
*/
int
dict_add(d, item)
dict_T *d;
dictitem_T *item;
{
return hash_add(&d->dv_hashtab, item->di_key);
}
/*
* Add a number or string entry to dictionary "d".
* When "str" is NULL use number "nr", otherwise use "str".
* Returns FAIL when out of memory and when key already exists.
*/
int
dict_add_nr_str(d, key, nr, str)
dict_T *d;
char *key;
long nr;
char_u *str;
{
dictitem_T *item;
item = dictitem_alloc((char_u *)key);
if (item == NULL)
return FAIL;
item->di_tv.v_lock = 0;
if (str == NULL)
{
item->di_tv.v_type = VAR_NUMBER;
item->di_tv.vval.v_number = nr;
}
else
{
item->di_tv.v_type = VAR_STRING;
item->di_tv.vval.v_string = vim_strsave(str);
}
if (dict_add(d, item) == FAIL)
{
dictitem_free(item);
return FAIL;
}
return OK;
}
/*
* Add a list entry to dictionary "d".
* Returns FAIL when out of memory and when key already exists.
*/
int
dict_add_list(d, key, list)
dict_T *d;
char *key;
list_T *list;
{
dictitem_T *item;
item = dictitem_alloc((char_u *)key);
if (item == NULL)
return FAIL;
item->di_tv.v_lock = 0;
item->di_tv.v_type = VAR_LIST;
item->di_tv.vval.v_list = list;
if (dict_add(d, item) == FAIL)
{
dictitem_free(item);
return FAIL;
}
++list->lv_refcount;
return OK;
}
/*
* Get the number of items in a Dictionary.
*/
static long
dict_len(d)
dict_T *d;
{
if (d == NULL)
return 0L;
return (long)d->dv_hashtab.ht_used;
}
/*
* Find item "key[len]" in Dictionary "d".
* If "len" is negative use strlen(key).
* Returns NULL when not found.
*/
dictitem_T *
dict_find(d, key, len)
dict_T *d;
char_u *key;
int len;
{
#define AKEYLEN 200
char_u buf[AKEYLEN];
char_u *akey;
char_u *tofree = NULL;
hashitem_T *hi;
if (len < 0)
akey = key;
else if (len >= AKEYLEN)
{
tofree = akey = vim_strnsave(key, len);
if (akey == NULL)
return NULL;
}
else
{
/* Avoid a malloc/free by using buf[]. */
vim_strncpy(buf, key, len);
akey = buf;
}
hi = hash_find(&d->dv_hashtab, akey);
vim_free(tofree);
if (HASHITEM_EMPTY(hi))
return NULL;
return HI2DI(hi);
}
/*
* Get a string item from a dictionary.
* When "save" is TRUE allocate memory for it.
* Returns NULL if the entry doesn't exist or out of memory.
*/
char_u *
get_dict_string(d, key, save)
dict_T *d;
char_u *key;
int save;
{
dictitem_T *di;
char_u *s;
di = dict_find(d, key, -1);
if (di == NULL)
return NULL;
s = get_tv_string(&di->di_tv);
if (save && s != NULL)
s = vim_strsave(s);
return s;
}
/*
* Get a number item from a dictionary.
* Returns 0 if the entry doesn't exist or out of memory.
*/
long
get_dict_number(d, key)
dict_T *d;
char_u *key;
{
dictitem_T *di;
di = dict_find(d, key, -1);
if (di == NULL)
return 0;
return get_tv_number(&di->di_tv);
}
/*
* Return an allocated string with the string representation of a Dictionary.
* May return NULL.
*/
static char_u *
dict2string(tv, copyID)
typval_T *tv;
int copyID;
{
garray_T ga;
int first = TRUE;
char_u *tofree;
char_u numbuf[NUMBUFLEN];
hashitem_T *hi;
char_u *s;
dict_T *d;
int todo;
if ((d = tv->vval.v_dict) == NULL)
return NULL;
ga_init2(&ga, (int)sizeof(char), 80);
ga_append(&ga, '{');
todo = (int)d->dv_hashtab.ht_used;
for (hi = d->dv_hashtab.ht_array; todo > 0 && !got_int; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
if (first)
first = FALSE;
else
ga_concat(&ga, (char_u *)", ");
tofree = string_quote(hi->hi_key, FALSE);
if (tofree != NULL)
{
ga_concat(&ga, tofree);
vim_free(tofree);
}
ga_concat(&ga, (char_u *)": ");
s = tv2string(&HI2DI(hi)->di_tv, &tofree, numbuf, copyID);
if (s != NULL)
ga_concat(&ga, s);
vim_free(tofree);
if (s == NULL || did_echo_string_emsg)
break;
line_breakcheck();
}
}
if (todo > 0)
{
vim_free(ga.ga_data);
return NULL;
}
ga_append(&ga, '}');
ga_append(&ga, NUL);
return (char_u *)ga.ga_data;
}
/*
* Allocate a variable for a Dictionary and fill it from "*arg".
* Return OK or FAIL. Returns NOTDONE for {expr}.
*/
static int
get_dict_tv(arg, rettv, evaluate)
char_u **arg;
typval_T *rettv;
int evaluate;
{
dict_T *d = NULL;
typval_T tvkey;
typval_T tv;
char_u *key = NULL;
dictitem_T *item;
char_u *start = skipwhite(*arg + 1);
char_u buf[NUMBUFLEN];
/*
* First check if it's not a curly-braces thing: {expr}.
* Must do this without evaluating, otherwise a function may be called
* twice. Unfortunately this means we need to call eval1() twice for the
* first item.
* But {} is an empty Dictionary.
*/
if (*start != '}')
{
if (eval1(&start, &tv, FALSE) == FAIL) /* recursive! */
return FAIL;
if (*start == '}')
return NOTDONE;
}
if (evaluate)
{
d = dict_alloc();
if (d == NULL)
return FAIL;
}
tvkey.v_type = VAR_UNKNOWN;
tv.v_type = VAR_UNKNOWN;
*arg = skipwhite(*arg + 1);
while (**arg != '}' && **arg != NUL)
{
if (eval1(arg, &tvkey, evaluate) == FAIL) /* recursive! */
goto failret;
if (**arg != ':')
{
EMSG2(_("E720: Missing colon in Dictionary: %s"), *arg);
clear_tv(&tvkey);
goto failret;
}
if (evaluate)
{
key = get_tv_string_buf_chk(&tvkey, buf);
if (key == NULL || *key == NUL)
{
/* "key" is NULL when get_tv_string_buf_chk() gave an errmsg */
if (key != NULL)
EMSG(_(e_emptykey));
clear_tv(&tvkey);
goto failret;
}
}
*arg = skipwhite(*arg + 1);
if (eval1(arg, &tv, evaluate) == FAIL) /* recursive! */
{
if (evaluate)
clear_tv(&tvkey);
goto failret;
}
if (evaluate)
{
item = dict_find(d, key, -1);
if (item != NULL)
{
EMSG2(_("E721: Duplicate key in Dictionary: \"%s\""), key);
clear_tv(&tvkey);
clear_tv(&tv);
goto failret;
}
item = dictitem_alloc(key);
clear_tv(&tvkey);
if (item != NULL)
{
item->di_tv = tv;
item->di_tv.v_lock = 0;
if (dict_add(d, item) == FAIL)
dictitem_free(item);
}
}
if (**arg == '}')
break;
if (**arg != ',')
{
EMSG2(_("E722: Missing comma in Dictionary: %s"), *arg);
goto failret;
}
*arg = skipwhite(*arg + 1);
}
if (**arg != '}')
{
EMSG2(_("E723: Missing end of Dictionary '}': %s"), *arg);
failret:
if (evaluate)
dict_free(d, TRUE);
return FAIL;
}
*arg = skipwhite(*arg + 1);
if (evaluate)
{
rettv->v_type = VAR_DICT;
rettv->vval.v_dict = d;
++d->dv_refcount;
}
return OK;
}
/*
* Return a string with the string representation of a variable.
* If the memory is allocated "tofree" is set to it, otherwise NULL.
* "numbuf" is used for a number.
* Does not put quotes around strings, as ":echo" displays values.
* When "copyID" is not NULL replace recursive lists and dicts with "...".
* May return NULL.
*/
static char_u *
echo_string(tv, tofree, numbuf, copyID)
typval_T *tv;
char_u **tofree;
char_u *numbuf;
int copyID;
{
static int recurse = 0;
char_u *r = NULL;
if (recurse >= DICT_MAXNEST)
{
if (!did_echo_string_emsg)
{
/* Only give this message once for a recursive call to avoid
* flooding the user with errors. And stop iterating over lists
* and dicts. */
did_echo_string_emsg = TRUE;
EMSG(_("E724: variable nested too deep for displaying"));
}
*tofree = NULL;
return (char_u *)"{E724}";
}
++recurse;
switch (tv->v_type)
{
case VAR_FUNC:
*tofree = NULL;
r = tv->vval.v_string;
break;
case VAR_LIST:
if (tv->vval.v_list == NULL)
{
*tofree = NULL;
r = NULL;
}
else if (copyID != 0 && tv->vval.v_list->lv_copyID == copyID)
{
*tofree = NULL;
r = (char_u *)"[...]";
}
else
{
tv->vval.v_list->lv_copyID = copyID;
*tofree = list2string(tv, copyID);
r = *tofree;
}
break;
case VAR_DICT:
if (tv->vval.v_dict == NULL)
{
*tofree = NULL;
r = NULL;
}
else if (copyID != 0 && tv->vval.v_dict->dv_copyID == copyID)
{
*tofree = NULL;
r = (char_u *)"{...}";
}
else
{
tv->vval.v_dict->dv_copyID = copyID;
*tofree = dict2string(tv, copyID);
r = *tofree;
}
break;
case VAR_STRING:
case VAR_NUMBER:
*tofree = NULL;
r = get_tv_string_buf(tv, numbuf);
break;
#ifdef FEAT_FLOAT
case VAR_FLOAT:
*tofree = NULL;
vim_snprintf((char *)numbuf, NUMBUFLEN, "%g", tv->vval.v_float);
r = numbuf;
break;
#endif
default:
EMSG2(_(e_intern2), "echo_string()");
*tofree = NULL;
}
if (--recurse == 0)
did_echo_string_emsg = FALSE;
return r;
}
/*
* Return a string with the string representation of a variable.
* If the memory is allocated "tofree" is set to it, otherwise NULL.
* "numbuf" is used for a number.
* Puts quotes around strings, so that they can be parsed back by eval().
* May return NULL.
*/
static char_u *
tv2string(tv, tofree, numbuf, copyID)
typval_T *tv;
char_u **tofree;
char_u *numbuf;
int copyID;
{
switch (tv->v_type)
{
case VAR_FUNC:
*tofree = string_quote(tv->vval.v_string, TRUE);
return *tofree;
case VAR_STRING:
*tofree = string_quote(tv->vval.v_string, FALSE);
return *tofree;
#ifdef FEAT_FLOAT
case VAR_FLOAT:
*tofree = NULL;
vim_snprintf((char *)numbuf, NUMBUFLEN - 1, "%g", tv->vval.v_float);
return numbuf;
#endif
case VAR_NUMBER:
case VAR_LIST:
case VAR_DICT:
break;
default:
EMSG2(_(e_intern2), "tv2string()");
}
return echo_string(tv, tofree, numbuf, copyID);
}
/*
* Return string "str" in ' quotes, doubling ' characters.
* If "str" is NULL an empty string is assumed.
* If "function" is TRUE make it function('string').
*/
static char_u *
string_quote(str, function)
char_u *str;
int function;
{
unsigned len;
char_u *p, *r, *s;
len = (function ? 13 : 3);
if (str != NULL)
{
len += (unsigned)STRLEN(str);
for (p = str; *p != NUL; mb_ptr_adv(p))
if (*p == '\'')
++len;
}
s = r = alloc(len);
if (r != NULL)
{
if (function)
{
STRCPY(r, "function('");
r += 10;
}
else
*r++ = '\'';
if (str != NULL)
for (p = str; *p != NUL; )
{
if (*p == '\'')
*r++ = '\'';
MB_COPY_CHAR(p, r);
}
*r++ = '\'';
if (function)
*r++ = ')';
*r++ = NUL;
}
return s;
}
#ifdef FEAT_FLOAT
/*
* Convert the string "text" to a floating point number.
* This uses strtod(). setlocale(LC_NUMERIC, "C") has been used to make sure
* this always uses a decimal point.
* Returns the length of the text that was consumed.
*/
static int
string2float(text, value)
char_u *text;
float_T *value; /* result stored here */
{
char *s = (char *)text;
float_T f;
f = strtod(s, &s);
*value = f;
return (int)((char_u *)s - text);
}
#endif
/*
* Get the value of an environment variable.
* "arg" is pointing to the '$'. It is advanced to after the name.
* If the environment variable was not set, silently assume it is empty.
* Return FAIL if the name is invalid.
*/
static int
get_env_tv(arg, rettv, evaluate)
char_u **arg;
typval_T *rettv;
int evaluate;
{
char_u *string = NULL;
int len;
int cc;
char_u *name;
int mustfree = FALSE;
++*arg;
name = *arg;
len = get_env_len(arg);
if (evaluate)
{
if (len == 0)
return FAIL; /* invalid empty name */
cc = name[len];
name[len] = NUL;
/* first try vim_getenv(), fast for normal environment vars */
string = vim_getenv(name, &mustfree);
if (string != NULL && *string != NUL)
{
if (!mustfree)
string = vim_strsave(string);
}
else
{
if (mustfree)
vim_free(string);
/* next try expanding things like $VIM and ${HOME} */
string = expand_env_save(name - 1);
if (string != NULL && *string == '$')
{
vim_free(string);
string = NULL;
}
}
name[len] = cc;
rettv->v_type = VAR_STRING;
rettv->vval.v_string = string;
}
return OK;
}
/*
* Array with names and number of arguments of all internal functions
* MUST BE KEPT SORTED IN strcmp() ORDER FOR BINARY SEARCH!
*/
static struct fst
{
char *f_name; /* function name */
char f_min_argc; /* minimal number of arguments */
char f_max_argc; /* maximal number of arguments */
void (*f_func) __ARGS((typval_T *args, typval_T *rvar));
/* implementation of function */
} functions[] =
{
#ifdef FEAT_FLOAT
{"abs", 1, 1, f_abs},
{"acos", 1, 1, f_acos}, /* WJMc */
#endif
{"add", 2, 2, f_add},
{"alloc_fail", 3, 3, f_alloc_fail},
{"and", 2, 2, f_and},
{"append", 2, 2, f_append},
{"argc", 0, 0, f_argc},
{"argidx", 0, 0, f_argidx},
{"arglistid", 0, 2, f_arglistid},
{"argv", 0, 1, f_argv},
#ifdef FEAT_FLOAT
{"asin", 1, 1, f_asin}, /* WJMc */
#endif
{"assert_equal", 2, 3, f_assert_equal},
{"assert_exception", 1, 2, f_assert_exception},
{"assert_fails", 1, 2, f_assert_fails},
{"assert_false", 1, 2, f_assert_false},
{"assert_true", 1, 2, f_assert_true},
#ifdef FEAT_FLOAT
{"atan", 1, 1, f_atan},
{"atan2", 2, 2, f_atan2},
#endif
{"browse", 4, 4, f_browse},
{"browsedir", 2, 2, f_browsedir},
{"bufexists", 1, 1, f_bufexists},
{"buffer_exists", 1, 1, f_bufexists}, /* obsolete */
{"buffer_name", 1, 1, f_bufname}, /* obsolete */
{"buffer_number", 1, 1, f_bufnr}, /* obsolete */
{"buflisted", 1, 1, f_buflisted},
{"bufloaded", 1, 1, f_bufloaded},
{"bufname", 1, 1, f_bufname},
{"bufnr", 1, 2, f_bufnr},
{"bufwinnr", 1, 1, f_bufwinnr},
{"byte2line", 1, 1, f_byte2line},
{"byteidx", 2, 2, f_byteidx},
{"byteidxcomp", 2, 2, f_byteidxcomp},
{"call", 2, 3, f_call},
#ifdef FEAT_FLOAT
{"ceil", 1, 1, f_ceil},
#endif
{"changenr", 0, 0, f_changenr},
{"char2nr", 1, 2, f_char2nr},
{"cindent", 1, 1, f_cindent},
{"clearmatches", 0, 0, f_clearmatches},
{"col", 1, 1, f_col},
#if defined(FEAT_INS_EXPAND)
{"complete", 2, 2, f_complete},
{"complete_add", 1, 1, f_complete_add},
{"complete_check", 0, 0, f_complete_check},
#endif
{"confirm", 1, 4, f_confirm},
{"copy", 1, 1, f_copy},
#ifdef FEAT_FLOAT
{"cos", 1, 1, f_cos},
{"cosh", 1, 1, f_cosh},
#endif
{"count", 2, 4, f_count},
{"cscope_connection",0,3, f_cscope_connection},
{"cursor", 1, 3, f_cursor},
{"deepcopy", 1, 2, f_deepcopy},
{"delete", 1, 2, f_delete},
{"did_filetype", 0, 0, f_did_filetype},
{"diff_filler", 1, 1, f_diff_filler},
{"diff_hlID", 2, 2, f_diff_hlID},
{"empty", 1, 1, f_empty},
{"escape", 2, 2, f_escape},
{"eval", 1, 1, f_eval},
{"eventhandler", 0, 0, f_eventhandler},
{"executable", 1, 1, f_executable},
{"exepath", 1, 1, f_exepath},
{"exists", 1, 1, f_exists},
#ifdef FEAT_FLOAT
{"exp", 1, 1, f_exp},
#endif
{"expand", 1, 3, f_expand},
{"extend", 2, 3, f_extend},
{"feedkeys", 1, 2, f_feedkeys},
{"file_readable", 1, 1, f_filereadable}, /* obsolete */
{"filereadable", 1, 1, f_filereadable},
{"filewritable", 1, 1, f_filewritable},
{"filter", 2, 2, f_filter},
{"finddir", 1, 3, f_finddir},
{"findfile", 1, 3, f_findfile},
#ifdef FEAT_FLOAT
{"float2nr", 1, 1, f_float2nr},
{"floor", 1, 1, f_floor},
{"fmod", 2, 2, f_fmod},
#endif
{"fnameescape", 1, 1, f_fnameescape},
{"fnamemodify", 2, 2, f_fnamemodify},
{"foldclosed", 1, 1, f_foldclosed},
{"foldclosedend", 1, 1, f_foldclosedend},
{"foldlevel", 1, 1, f_foldlevel},
{"foldtext", 0, 0, f_foldtext},
{"foldtextresult", 1, 1, f_foldtextresult},
{"foreground", 0, 0, f_foreground},
{"function", 1, 1, f_function},
{"garbagecollect", 0, 1, f_garbagecollect},
{"get", 2, 3, f_get},
{"getbufline", 2, 3, f_getbufline},
{"getbufvar", 2, 3, f_getbufvar},
{"getchar", 0, 1, f_getchar},
{"getcharmod", 0, 0, f_getcharmod},
{"getcharsearch", 0, 0, f_getcharsearch},
{"getcmdline", 0, 0, f_getcmdline},
{"getcmdpos", 0, 0, f_getcmdpos},
{"getcmdtype", 0, 0, f_getcmdtype},
{"getcmdwintype", 0, 0, f_getcmdwintype},
{"getcurpos", 0, 0, f_getcurpos},
{"getcwd", 0, 2, f_getcwd},
{"getfontname", 0, 1, f_getfontname},
{"getfperm", 1, 1, f_getfperm},
{"getfsize", 1, 1, f_getfsize},
{"getftime", 1, 1, f_getftime},
{"getftype", 1, 1, f_getftype},
{"getline", 1, 2, f_getline},
{"getloclist", 1, 1, f_getqflist},
{"getmatches", 0, 0, f_getmatches},
{"getpid", 0, 0, f_getpid},
{"getpos", 1, 1, f_getpos},
{"getqflist", 0, 0, f_getqflist},
{"getreg", 0, 3, f_getreg},
{"getregtype", 0, 1, f_getregtype},
{"gettabvar", 2, 3, f_gettabvar},
{"gettabwinvar", 3, 4, f_gettabwinvar},
{"getwinposx", 0, 0, f_getwinposx},
{"getwinposy", 0, 0, f_getwinposy},
{"getwinvar", 2, 3, f_getwinvar},
{"glob", 1, 4, f_glob},
{"glob2regpat", 1, 1, f_glob2regpat},
{"globpath", 2, 5, f_globpath},
{"has", 1, 1, f_has},
{"has_key", 2, 2, f_has_key},
{"haslocaldir", 0, 2, f_haslocaldir},
{"hasmapto", 1, 3, f_hasmapto},
{"highlightID", 1, 1, f_hlID}, /* obsolete */
{"highlight_exists",1, 1, f_hlexists}, /* obsolete */
{"histadd", 2, 2, f_histadd},
{"histdel", 1, 2, f_histdel},
{"histget", 1, 2, f_histget},
{"histnr", 1, 1, f_histnr},
{"hlID", 1, 1, f_hlID},
{"hlexists", 1, 1, f_hlexists},
{"hostname", 0, 0, f_hostname},
{"iconv", 3, 3, f_iconv},
{"indent", 1, 1, f_indent},
{"index", 2, 4, f_index},
{"input", 1, 3, f_input},
{"inputdialog", 1, 3, f_inputdialog},
{"inputlist", 1, 1, f_inputlist},
{"inputrestore", 0, 0, f_inputrestore},
{"inputsave", 0, 0, f_inputsave},
{"inputsecret", 1, 2, f_inputsecret},
{"insert", 2, 3, f_insert},
{"invert", 1, 1, f_invert},
{"isdirectory", 1, 1, f_isdirectory},
{"islocked", 1, 1, f_islocked},
{"items", 1, 1, f_items},
{"join", 1, 2, f_join},
{"keys", 1, 1, f_keys},
{"last_buffer_nr", 0, 0, f_last_buffer_nr},/* obsolete */
{"len", 1, 1, f_len},
{"libcall", 3, 3, f_libcall},
{"libcallnr", 3, 3, f_libcallnr},
{"line", 1, 1, f_line},
{"line2byte", 1, 1, f_line2byte},
{"lispindent", 1, 1, f_lispindent},
{"localtime", 0, 0, f_localtime},
#ifdef FEAT_FLOAT
{"log", 1, 1, f_log},
{"log10", 1, 1, f_log10},
#endif
#ifdef FEAT_LUA
{"luaeval", 1, 2, f_luaeval},
#endif
{"map", 2, 2, f_map},
{"maparg", 1, 4, f_maparg},
{"mapcheck", 1, 3, f_mapcheck},
{"match", 2, 4, f_match},
{"matchadd", 2, 5, f_matchadd},
{"matchaddpos", 2, 5, f_matchaddpos},
{"matcharg", 1, 1, f_matcharg},
{"matchdelete", 1, 1, f_matchdelete},
{"matchend", 2, 4, f_matchend},
{"matchlist", 2, 4, f_matchlist},
{"matchstr", 2, 4, f_matchstr},
{"max", 1, 1, f_max},
{"min", 1, 1, f_min},
#ifdef vim_mkdir
{"mkdir", 1, 3, f_mkdir},
#endif
{"mode", 0, 1, f_mode},
#ifdef FEAT_MZSCHEME
{"mzeval", 1, 1, f_mzeval},
#endif
{"nextnonblank", 1, 1, f_nextnonblank},
{"nr2char", 1, 2, f_nr2char},
{"or", 2, 2, f_or},
{"pathshorten", 1, 1, f_pathshorten},
#ifdef FEAT_PERL
{"perleval", 1, 1, f_perleval},
#endif
#ifdef FEAT_FLOAT
{"pow", 2, 2, f_pow},
#endif
{"prevnonblank", 1, 1, f_prevnonblank},
{"printf", 2, 19, f_printf},
{"pumvisible", 0, 0, f_pumvisible},
#ifdef FEAT_PYTHON3
{"py3eval", 1, 1, f_py3eval},
#endif
#ifdef FEAT_PYTHON
{"pyeval", 1, 1, f_pyeval},
#endif
{"range", 1, 3, f_range},
{"readfile", 1, 3, f_readfile},
{"reltime", 0, 2, f_reltime},
{"reltimestr", 1, 1, f_reltimestr},
{"remote_expr", 2, 3, f_remote_expr},
{"remote_foreground", 1, 1, f_remote_foreground},
{"remote_peek", 1, 2, f_remote_peek},
{"remote_read", 1, 1, f_remote_read},
{"remote_send", 2, 3, f_remote_send},
{"remove", 2, 3, f_remove},
{"rename", 2, 2, f_rename},
{"repeat", 2, 2, f_repeat},
{"resolve", 1, 1, f_resolve},
{"reverse", 1, 1, f_reverse},
#ifdef FEAT_FLOAT
{"round", 1, 1, f_round},
#endif
{"screenattr", 2, 2, f_screenattr},
{"screenchar", 2, 2, f_screenchar},
{"screencol", 0, 0, f_screencol},
{"screenrow", 0, 0, f_screenrow},
{"search", 1, 4, f_search},
{"searchdecl", 1, 3, f_searchdecl},
{"searchpair", 3, 7, f_searchpair},
{"searchpairpos", 3, 7, f_searchpairpos},
{"searchpos", 1, 4, f_searchpos},
{"server2client", 2, 2, f_server2client},
{"serverlist", 0, 0, f_serverlist},
{"setbufvar", 3, 3, f_setbufvar},
{"setcharsearch", 1, 1, f_setcharsearch},
{"setcmdpos", 1, 1, f_setcmdpos},
{"setline", 2, 2, f_setline},
{"setloclist", 2, 3, f_setloclist},
{"setmatches", 1, 1, f_setmatches},
{"setpos", 2, 2, f_setpos},
{"setqflist", 1, 2, f_setqflist},
{"setreg", 2, 3, f_setreg},
{"settabvar", 3, 3, f_settabvar},
{"settabwinvar", 4, 4, f_settabwinvar},
{"setwinvar", 3, 3, f_setwinvar},
#ifdef FEAT_CRYPT
{"sha256", 1, 1, f_sha256},
#endif
{"shellescape", 1, 2, f_shellescape},
{"shiftwidth", 0, 0, f_shiftwidth},
{"simplify", 1, 1, f_simplify},
#ifdef FEAT_FLOAT
{"sin", 1, 1, f_sin},
{"sinh", 1, 1, f_sinh},
#endif
{"sort", 1, 3, f_sort},
{"soundfold", 1, 1, f_soundfold},
{"spellbadword", 0, 1, f_spellbadword},
{"spellsuggest", 1, 3, f_spellsuggest},
{"split", 1, 3, f_split},
#ifdef FEAT_FLOAT
{"sqrt", 1, 1, f_sqrt},
{"str2float", 1, 1, f_str2float},
#endif
{"str2nr", 1, 2, f_str2nr},
{"strchars", 1, 2, f_strchars},
{"strdisplaywidth", 1, 2, f_strdisplaywidth},
#ifdef HAVE_STRFTIME
{"strftime", 1, 2, f_strftime},
#endif
{"stridx", 2, 3, f_stridx},
{"string", 1, 1, f_string},
{"strlen", 1, 1, f_strlen},
{"strpart", 2, 3, f_strpart},
{"strridx", 2, 3, f_strridx},
{"strtrans", 1, 1, f_strtrans},
{"strwidth", 1, 1, f_strwidth},
{"submatch", 1, 2, f_submatch},
{"substitute", 4, 4, f_substitute},
{"synID", 3, 3, f_synID},
{"synIDattr", 2, 3, f_synIDattr},
{"synIDtrans", 1, 1, f_synIDtrans},
{"synconcealed", 2, 2, f_synconcealed},
{"synstack", 2, 2, f_synstack},
{"system", 1, 2, f_system},
{"systemlist", 1, 2, f_systemlist},
{"tabpagebuflist", 0, 1, f_tabpagebuflist},
{"tabpagenr", 0, 1, f_tabpagenr},
{"tabpagewinnr", 1, 2, f_tabpagewinnr},
{"tagfiles", 0, 0, f_tagfiles},
{"taglist", 1, 1, f_taglist},
#ifdef FEAT_FLOAT
{"tan", 1, 1, f_tan},
{"tanh", 1, 1, f_tanh},
#endif
{"tempname", 0, 0, f_tempname},
{"test", 1, 1, f_test},
{"tolower", 1, 1, f_tolower},
{"toupper", 1, 1, f_toupper},
{"tr", 3, 3, f_tr},
#ifdef FEAT_FLOAT
{"trunc", 1, 1, f_trunc},
#endif
{"type", 1, 1, f_type},
{"undofile", 1, 1, f_undofile},
{"undotree", 0, 0, f_undotree},
{"uniq", 1, 3, f_uniq},
{"values", 1, 1, f_values},
{"virtcol", 1, 1, f_virtcol},
{"visualmode", 0, 1, f_visualmode},
{"wildmenumode", 0, 0, f_wildmenumode},
{"winbufnr", 1, 1, f_winbufnr},
{"wincol", 0, 0, f_wincol},
{"winheight", 1, 1, f_winheight},
{"winline", 0, 0, f_winline},
{"winnr", 0, 1, f_winnr},
{"winrestcmd", 0, 0, f_winrestcmd},
{"winrestview", 1, 1, f_winrestview},
{"winsaveview", 0, 0, f_winsaveview},
{"winwidth", 1, 1, f_winwidth},
{"wordcount", 0, 0, f_wordcount},
{"writefile", 2, 3, f_writefile},
{"xor", 2, 2, f_xor},
};
#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
/*
* Function given to ExpandGeneric() to obtain the list of internal
* or user defined function names.
*/
char_u *
get_function_name(xp, idx)
expand_T *xp;
int idx;
{
static int intidx = -1;
char_u *name;
if (idx == 0)
intidx = -1;
if (intidx < 0)
{
name = get_user_func_name(xp, idx);
if (name != NULL)
return name;
}
if (++intidx < (int)(sizeof(functions) / sizeof(struct fst)))
{
STRCPY(IObuff, functions[intidx].f_name);
STRCAT(IObuff, "(");
if (functions[intidx].f_max_argc == 0)
STRCAT(IObuff, ")");
return IObuff;
}
return NULL;
}
/*
* Function given to ExpandGeneric() to obtain the list of internal or
* user defined variable or function names.
*/
char_u *
get_expr_name(xp, idx)
expand_T *xp;
int idx;
{
static int intidx = -1;
char_u *name;
if (idx == 0)
intidx = -1;
if (intidx < 0)
{
name = get_function_name(xp, idx);
if (name != NULL)
return name;
}
return get_user_var_name(xp, ++intidx);
}
#endif /* FEAT_CMDL_COMPL */
#if defined(EBCDIC) || defined(PROTO)
/*
* Compare struct fst by function name.
*/
static int
compare_func_name(s1, s2)
const void *s1;
const void *s2;
{
struct fst *p1 = (struct fst *)s1;
struct fst *p2 = (struct fst *)s2;
return STRCMP(p1->f_name, p2->f_name);
}
/*
* Sort the function table by function name.
* The sorting of the table above is ASCII dependant.
* On machines using EBCDIC we have to sort it.
*/
static void
sortFunctions()
{
int funcCnt = (int)(sizeof(functions) / sizeof(struct fst)) - 1;
qsort(functions, (size_t)funcCnt, sizeof(struct fst), compare_func_name);
}
#endif
/*
* Find internal function in table above.
* Return index, or -1 if not found
*/
static int
find_internal_func(name)
char_u *name; /* name of the function */
{
int first = 0;
int last = (int)(sizeof(functions) / sizeof(struct fst)) - 1;
int cmp;
int x;
/*
* Find the function name in the table. Binary search.
*/
while (first <= last)
{
x = first + ((unsigned)(last - first) >> 1);
cmp = STRCMP(name, functions[x].f_name);
if (cmp < 0)
last = x - 1;
else if (cmp > 0)
first = x + 1;
else
return x;
}
return -1;
}
/*
* Check if "name" is a variable of type VAR_FUNC. If so, return the function
* name it contains, otherwise return "name".
*/
static char_u *
deref_func_name(name, lenp, no_autoload)
char_u *name;
int *lenp;
int no_autoload;
{
dictitem_T *v;
int cc;
cc = name[*lenp];
name[*lenp] = NUL;
v = find_var(name, NULL, no_autoload);
name[*lenp] = cc;
if (v != NULL && v->di_tv.v_type == VAR_FUNC)
{
if (v->di_tv.vval.v_string == NULL)
{
*lenp = 0;
return (char_u *)""; /* just in case */
}
*lenp = (int)STRLEN(v->di_tv.vval.v_string);
return v->di_tv.vval.v_string;
}
return name;
}
/*
* Allocate a variable for the result of a function.
* Return OK or FAIL.
*/
static int
get_func_tv(name, len, rettv, arg, firstline, lastline, doesrange,
evaluate, selfdict)
char_u *name; /* name of the function */
int len; /* length of "name" */
typval_T *rettv;
char_u **arg; /* argument, pointing to the '(' */
linenr_T firstline; /* first line of range */
linenr_T lastline; /* last line of range */
int *doesrange; /* return: function handled range */
int evaluate;
dict_T *selfdict; /* Dictionary for "self" */
{
char_u *argp;
int ret = OK;
typval_T argvars[MAX_FUNC_ARGS + 1]; /* vars for arguments */
int argcount = 0; /* number of arguments found */
/*
* Get the arguments.
*/
argp = *arg;
while (argcount < MAX_FUNC_ARGS)
{
argp = skipwhite(argp + 1); /* skip the '(' or ',' */
if (*argp == ')' || *argp == ',' || *argp == NUL)
break;
if (eval1(&argp, &argvars[argcount], evaluate) == FAIL)
{
ret = FAIL;
break;
}
++argcount;
if (*argp != ',')
break;
}
if (*argp == ')')
++argp;
else
ret = FAIL;
if (ret == OK)
ret = call_func(name, len, rettv, argcount, argvars,
firstline, lastline, doesrange, evaluate, selfdict);
else if (!aborting())
{
if (argcount == MAX_FUNC_ARGS)
emsg_funcname(N_("E740: Too many arguments for function %s"), name);
else
emsg_funcname(N_("E116: Invalid arguments for function %s"), name);
}
while (--argcount >= 0)
clear_tv(&argvars[argcount]);
*arg = skipwhite(argp);
return ret;
}
/*
* Call a function with its resolved parameters
* Return FAIL when the function can't be called, OK otherwise.
* Also returns OK when an error was encountered while executing the function.
*/
static int
call_func(funcname, len, rettv, argcount, argvars, firstline, lastline,
doesrange, evaluate, selfdict)
char_u *funcname; /* name of the function */
int len; /* length of "name" */
typval_T *rettv; /* return value goes here */
int argcount; /* number of "argvars" */
typval_T *argvars; /* vars for arguments, must have "argcount"
PLUS ONE elements! */
linenr_T firstline; /* first line of range */
linenr_T lastline; /* last line of range */
int *doesrange; /* return: function handled range */
int evaluate;
dict_T *selfdict; /* Dictionary for "self" */
{
int ret = FAIL;
#define ERROR_UNKNOWN 0
#define ERROR_TOOMANY 1
#define ERROR_TOOFEW 2
#define ERROR_SCRIPT 3
#define ERROR_DICT 4
#define ERROR_NONE 5
#define ERROR_OTHER 6
int error = ERROR_NONE;
int i;
int llen;
ufunc_T *fp;
#define FLEN_FIXED 40
char_u fname_buf[FLEN_FIXED + 1];
char_u *fname;
char_u *name;
/* Make a copy of the name, if it comes from a funcref variable it could
* be changed or deleted in the called function. */
name = vim_strnsave(funcname, len);
if (name == NULL)
return ret;
/*
* In a script change <SID>name() and s:name() to K_SNR 123_name().
* Change <SNR>123_name() to K_SNR 123_name().
* Use fname_buf[] when it fits, otherwise allocate memory (slow).
*/
llen = eval_fname_script(name);
if (llen > 0)
{
fname_buf[0] = K_SPECIAL;
fname_buf[1] = KS_EXTRA;
fname_buf[2] = (int)KE_SNR;
i = 3;
if (eval_fname_sid(name)) /* "<SID>" or "s:" */
{
if (current_SID <= 0)
error = ERROR_SCRIPT;
else
{
sprintf((char *)fname_buf + 3, "%ld_", (long)current_SID);
i = (int)STRLEN(fname_buf);
}
}
if (i + STRLEN(name + llen) < FLEN_FIXED)
{
STRCPY(fname_buf + i, name + llen);
fname = fname_buf;
}
else
{
fname = alloc((unsigned)(i + STRLEN(name + llen) + 1));
if (fname == NULL)
error = ERROR_OTHER;
else
{
mch_memmove(fname, fname_buf, (size_t)i);
STRCPY(fname + i, name + llen);
}
}
}
else
fname = name;
*doesrange = FALSE;
/* execute the function if no errors detected and executing */
if (evaluate && error == ERROR_NONE)
{
char_u *rfname = fname;
/* Ignore "g:" before a function name. */
if (fname[0] == 'g' && fname[1] == ':')
rfname = fname + 2;
rettv->v_type = VAR_NUMBER; /* default rettv is number zero */
rettv->vval.v_number = 0;
error = ERROR_UNKNOWN;
if (!builtin_function(rfname, -1))
{
/*
* User defined function.
*/
fp = find_func(rfname);
#ifdef FEAT_AUTOCMD
/* Trigger FuncUndefined event, may load the function. */
if (fp == NULL
&& apply_autocmds(EVENT_FUNCUNDEFINED,
rfname, rfname, TRUE, NULL)
&& !aborting())
{
/* executed an autocommand, search for the function again */
fp = find_func(rfname);
}
#endif
/* Try loading a package. */
if (fp == NULL && script_autoload(rfname, TRUE) && !aborting())
{
/* loaded a package, search for the function again */
fp = find_func(rfname);
}
if (fp != NULL)
{
if (fp->uf_flags & FC_RANGE)
*doesrange = TRUE;
if (argcount < fp->uf_args.ga_len)
error = ERROR_TOOFEW;
else if (!fp->uf_varargs && argcount > fp->uf_args.ga_len)
error = ERROR_TOOMANY;
else if ((fp->uf_flags & FC_DICT) && selfdict == NULL)
error = ERROR_DICT;
else
{
int did_save_redo = FALSE;
/*
* Call the user function.
* Save and restore search patterns, script variables and
* redo buffer.
*/
save_search_patterns();
#ifdef FEAT_INS_EXPAND
if (!ins_compl_active())
#endif
{
saveRedobuff();
did_save_redo = TRUE;
}
++fp->uf_calls;
call_user_func(fp, argcount, argvars, rettv,
firstline, lastline,
(fp->uf_flags & FC_DICT) ? selfdict : NULL);
if (--fp->uf_calls <= 0 && isdigit(*fp->uf_name)
&& fp->uf_refcount <= 0)
/* Function was unreferenced while being used, free it
* now. */
func_free(fp);
if (did_save_redo)
restoreRedobuff();
restore_search_patterns();
error = ERROR_NONE;
}
}
}
else
{
/*
* Find the function name in the table, call its implementation.
*/
i = find_internal_func(fname);
if (i >= 0)
{
if (argcount < functions[i].f_min_argc)
error = ERROR_TOOFEW;
else if (argcount > functions[i].f_max_argc)
error = ERROR_TOOMANY;
else
{
argvars[argcount].v_type = VAR_UNKNOWN;
functions[i].f_func(argvars, rettv);
error = ERROR_NONE;
}
}
}
/*
* The function call (or "FuncUndefined" autocommand sequence) might
* have been aborted by an error, an interrupt, or an explicitly thrown
* exception that has not been caught so far. This situation can be
* tested for by calling aborting(). For an error in an internal
* function or for the "E132" error in call_user_func(), however, the
* throw point at which the "force_abort" flag (temporarily reset by
* emsg()) is normally updated has not been reached yet. We need to
* update that flag first to make aborting() reliable.
*/
update_force_abort();
}
if (error == ERROR_NONE)
ret = OK;
/*
* Report an error unless the argument evaluation or function call has been
* cancelled due to an aborting error, an interrupt, or an exception.
*/
if (!aborting())
{
switch (error)
{
case ERROR_UNKNOWN:
emsg_funcname(N_("E117: Unknown function: %s"), name);
break;
case ERROR_TOOMANY:
emsg_funcname(e_toomanyarg, name);
break;
case ERROR_TOOFEW:
emsg_funcname(N_("E119: Not enough arguments for function: %s"),
name);
break;
case ERROR_SCRIPT:
emsg_funcname(N_("E120: Using <SID> not in a script context: %s"),
name);
break;
case ERROR_DICT:
emsg_funcname(N_("E725: Calling dict function without Dictionary: %s"),
name);
break;
}
}
if (fname != name && fname != fname_buf)
vim_free(fname);
vim_free(name);
return ret;
}
/*
* Give an error message with a function name. Handle <SNR> things.
* "ermsg" is to be passed without translation, use N_() instead of _().
*/
static void
emsg_funcname(ermsg, name)
char *ermsg;
char_u *name;
{
char_u *p;
if (*name == K_SPECIAL)
p = concat_str((char_u *)"<SNR>", name + 3);
else
p = name;
EMSG2(_(ermsg), p);
if (p != name)
vim_free(p);
}
/*
* Return TRUE for a non-zero Number and a non-empty String.
*/
static int
non_zero_arg(argvars)
typval_T *argvars;
{
return ((argvars[0].v_type == VAR_NUMBER
&& argvars[0].vval.v_number != 0)
|| (argvars[0].v_type == VAR_STRING
&& argvars[0].vval.v_string != NULL
&& *argvars[0].vval.v_string != NUL));
}
/*********************************************
* Implementation of the built-in functions
*/
#ifdef FEAT_FLOAT
static int get_float_arg __ARGS((typval_T *argvars, float_T *f));
/*
* Get the float value of "argvars[0]" into "f".
* Returns FAIL when the argument is not a Number or Float.
*/
static int
get_float_arg(argvars, f)
typval_T *argvars;
float_T *f;
{
if (argvars[0].v_type == VAR_FLOAT)
{
*f = argvars[0].vval.v_float;
return OK;
}
if (argvars[0].v_type == VAR_NUMBER)
{
*f = (float_T)argvars[0].vval.v_number;
return OK;
}
EMSG(_("E808: Number or Float required"));
return FAIL;
}
/*
* "abs(expr)" function
*/
static void
f_abs(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
if (argvars[0].v_type == VAR_FLOAT)
{
rettv->v_type = VAR_FLOAT;
rettv->vval.v_float = fabs(argvars[0].vval.v_float);
}
else
{
varnumber_T n;
int error = FALSE;
n = get_tv_number_chk(&argvars[0], &error);
if (error)
rettv->vval.v_number = -1;
else if (n > 0)
rettv->vval.v_number = n;
else
rettv->vval.v_number = -n;
}
}
/*
* "acos()" function
*/
static void
f_acos(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = acos(f);
else
rettv->vval.v_float = 0.0;
}
#endif
/*
* "add(list, item)" function
*/
static void
f_add(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
list_T *l;
rettv->vval.v_number = 1; /* Default: Failed */
if (argvars[0].v_type == VAR_LIST)
{
if ((l = argvars[0].vval.v_list) != NULL
&& !tv_check_lock(l->lv_lock,
(char_u *)N_("add() argument"), TRUE)
&& list_append_tv(l, &argvars[1]) == OK)
copy_tv(&argvars[0], rettv);
}
else
EMSG(_(e_listreq));
}
/*
* "alloc_fail(id, countdown, repeat)" function
*/
static void
f_alloc_fail(argvars, rettv)
typval_T *argvars;
typval_T *rettv UNUSED;
{
if (argvars[0].v_type != VAR_NUMBER
|| argvars[0].vval.v_number <= 0
|| argvars[1].v_type != VAR_NUMBER
|| argvars[1].vval.v_number < 0
|| argvars[2].v_type != VAR_NUMBER)
EMSG(_(e_invarg));
else
{
alloc_fail_id = argvars[0].vval.v_number;
if (alloc_fail_id >= aid_last)
EMSG(_(e_invarg));
alloc_fail_countdown = argvars[1].vval.v_number;
alloc_fail_repeat = argvars[2].vval.v_number;
did_outofmem_msg = FALSE;
}
}
/*
* "and(expr, expr)" function
*/
static void
f_and(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_number = get_tv_number_chk(&argvars[0], NULL)
& get_tv_number_chk(&argvars[1], NULL);
}
/*
* "append(lnum, string/list)" function
*/
static void
f_append(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
long lnum;
char_u *line;
list_T *l = NULL;
listitem_T *li = NULL;
typval_T *tv;
long added = 0;
/* When coming here from Insert mode, sync undo, so that this can be
* undone separately from what was previously inserted. */
if (u_sync_once == 2)
{
u_sync_once = 1; /* notify that u_sync() was called */
u_sync(TRUE);
}
lnum = get_tv_lnum(argvars);
if (lnum >= 0
&& lnum <= curbuf->b_ml.ml_line_count
&& u_save(lnum, lnum + 1) == OK)
{
if (argvars[1].v_type == VAR_LIST)
{
l = argvars[1].vval.v_list;
if (l == NULL)
return;
li = l->lv_first;
}
for (;;)
{
if (l == NULL)
tv = &argvars[1]; /* append a string */
else if (li == NULL)
break; /* end of list */
else
tv = &li->li_tv; /* append item from list */
line = get_tv_string_chk(tv);
if (line == NULL) /* type error */
{
rettv->vval.v_number = 1; /* Failed */
break;
}
ml_append(lnum + added, line, (colnr_T)0, FALSE);
++added;
if (l == NULL)
break;
li = li->li_next;
}
appended_lines_mark(lnum, added);
if (curwin->w_cursor.lnum > lnum)
curwin->w_cursor.lnum += added;
}
else
rettv->vval.v_number = 1; /* Failed */
}
/*
* "argc()" function
*/
static void
f_argc(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = ARGCOUNT;
}
/*
* "argidx()" function
*/
static void
f_argidx(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = curwin->w_arg_idx;
}
/*
* "arglistid()" function
*/
static void
f_arglistid(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
win_T *wp;
rettv->vval.v_number = -1;
wp = find_tabwin(&argvars[0], &argvars[1]);
if (wp != NULL)
rettv->vval.v_number = wp->w_alist->id;
}
/*
* "argv(nr)" function
*/
static void
f_argv(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int idx;
if (argvars[0].v_type != VAR_UNKNOWN)
{
idx = get_tv_number_chk(&argvars[0], NULL);
if (idx >= 0 && idx < ARGCOUNT)
rettv->vval.v_string = vim_strsave(alist_name(&ARGLIST[idx]));
else
rettv->vval.v_string = NULL;
rettv->v_type = VAR_STRING;
}
else if (rettv_list_alloc(rettv) == OK)
for (idx = 0; idx < ARGCOUNT; ++idx)
list_append_string(rettv->vval.v_list,
alist_name(&ARGLIST[idx]), -1);
}
static void prepare_assert_error __ARGS((garray_T*gap));
static void fill_assert_error __ARGS((garray_T *gap, typval_T *opt_msg_tv, char_u *exp_str, typval_T *exp_tv, typval_T *got_tv));
static void assert_error __ARGS((garray_T *gap));
static void assert_bool __ARGS((typval_T *argvars, int isTrue));
/*
* Prepare "gap" for an assert error and add the sourcing position.
*/
static void
prepare_assert_error(gap)
garray_T *gap;
{
char buf[NUMBUFLEN];
ga_init2(gap, 1, 100);
if (sourcing_name != NULL)
{
ga_concat(gap, sourcing_name);
if (sourcing_lnum > 0)
ga_concat(gap, (char_u *)" ");
}
if (sourcing_lnum > 0)
{
sprintf(buf, "line %ld", (long)sourcing_lnum);
ga_concat(gap, (char_u *)buf);
}
if (sourcing_name != NULL || sourcing_lnum > 0)
ga_concat(gap, (char_u *)": ");
}
/*
* Fill "gap" with information about an assert error.
*/
static void
fill_assert_error(gap, opt_msg_tv, exp_str, exp_tv, got_tv)
garray_T *gap;
typval_T *opt_msg_tv;
char_u *exp_str;
typval_T *exp_tv;
typval_T *got_tv;
{
char_u numbuf[NUMBUFLEN];
char_u *tofree;
if (opt_msg_tv->v_type != VAR_UNKNOWN)
{
ga_concat(gap, tv2string(opt_msg_tv, &tofree, numbuf, 0));
vim_free(tofree);
}
else
{
ga_concat(gap, (char_u *)"Expected ");
if (exp_str == NULL)
{
ga_concat(gap, tv2string(exp_tv, &tofree, numbuf, 0));
vim_free(tofree);
}
else
ga_concat(gap, exp_str);
ga_concat(gap, (char_u *)" but got ");
ga_concat(gap, tv2string(got_tv, &tofree, numbuf, 0));
vim_free(tofree);
}
}
/*
* Add an assert error to v:errors.
*/
static void
assert_error(gap)
garray_T *gap;
{
struct vimvar *vp = &vimvars[VV_ERRORS];
if (vp->vv_type != VAR_LIST || vimvars[VV_ERRORS].vv_list == NULL)
/* Make sure v:errors is a list. */
set_vim_var_list(VV_ERRORS, list_alloc());
list_append_string(vimvars[VV_ERRORS].vv_list, gap->ga_data, gap->ga_len);
}
/*
* "assert_equal(expected, actual[, msg])" function
*/
static void
f_assert_equal(argvars, rettv)
typval_T *argvars;
typval_T *rettv UNUSED;
{
garray_T ga;
if (!tv_equal(&argvars[0], &argvars[1], FALSE, FALSE))
{
prepare_assert_error(&ga);
fill_assert_error(&ga, &argvars[2], NULL, &argvars[0], &argvars[1]);
assert_error(&ga);
ga_clear(&ga);
}
}
/*
* "assert_exception(string[, msg])" function
*/
static void
f_assert_exception(argvars, rettv)
typval_T *argvars;
typval_T *rettv UNUSED;
{
garray_T ga;
char *error;
error = (char *)get_tv_string_chk(&argvars[0]);
if (vimvars[VV_EXCEPTION].vv_str == NULL)
{
prepare_assert_error(&ga);
ga_concat(&ga, (char_u *)"v:exception is not set");
assert_error(&ga);
ga_clear(&ga);
}
else if (error != NULL
&& strstr((char *)vimvars[VV_EXCEPTION].vv_str, error) == NULL)
{
prepare_assert_error(&ga);
fill_assert_error(&ga, &argvars[1], NULL, &argvars[0],
&vimvars[VV_EXCEPTION].vv_tv);
assert_error(&ga);
ga_clear(&ga);
}
}
/*
* "assert_fails(cmd [, error])" function
*/
static void
f_assert_fails(argvars, rettv)
typval_T *argvars;
typval_T *rettv UNUSED;
{
char_u *cmd = get_tv_string_chk(&argvars[0]);
garray_T ga;
called_emsg = FALSE;
suppress_errthrow = TRUE;
emsg_silent = TRUE;
do_cmdline_cmd(cmd);
if (!called_emsg)
{
prepare_assert_error(&ga);
ga_concat(&ga, (char_u *)"command did not fail: ");
ga_concat(&ga, cmd);
assert_error(&ga);
ga_clear(&ga);
}
else if (argvars[1].v_type != VAR_UNKNOWN)
{
char_u buf[NUMBUFLEN];
char *error = (char *)get_tv_string_buf_chk(&argvars[1], buf);
if (strstr((char *)vimvars[VV_ERRMSG].vv_str, error) == NULL)
{
prepare_assert_error(&ga);
fill_assert_error(&ga, &argvars[2], NULL, &argvars[1],
&vimvars[VV_ERRMSG].vv_tv);
assert_error(&ga);
ga_clear(&ga);
}
}
called_emsg = FALSE;
suppress_errthrow = FALSE;
emsg_silent = FALSE;
emsg_on_display = FALSE;
set_vim_var_string(VV_ERRMSG, NULL, 0);
}
/*
* Common for assert_true() and assert_false().
*/
static void
assert_bool(argvars, isTrue)
typval_T *argvars;
int isTrue;
{
int error = FALSE;
garray_T ga;
if (argvars[0].v_type != VAR_NUMBER
|| (get_tv_number_chk(&argvars[0], &error) == 0) == isTrue
|| error)
{
prepare_assert_error(&ga);
fill_assert_error(&ga, &argvars[1],
(char_u *)(isTrue ? "True" : "False"),
NULL, &argvars[0]);
assert_error(&ga);
ga_clear(&ga);
}
}
/*
* "assert_false(actual[, msg])" function
*/
static void
f_assert_false(argvars, rettv)
typval_T *argvars;
typval_T *rettv UNUSED;
{
assert_bool(argvars, FALSE);
}
/*
* "assert_true(actual[, msg])" function
*/
static void
f_assert_true(argvars, rettv)
typval_T *argvars;
typval_T *rettv UNUSED;
{
assert_bool(argvars, TRUE);
}
#ifdef FEAT_FLOAT
/*
* "asin()" function
*/
static void
f_asin(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = asin(f);
else
rettv->vval.v_float = 0.0;
}
/*
* "atan()" function
*/
static void
f_atan(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = atan(f);
else
rettv->vval.v_float = 0.0;
}
/*
* "atan2()" function
*/
static void
f_atan2(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T fx, fy;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &fx) == OK
&& get_float_arg(&argvars[1], &fy) == OK)
rettv->vval.v_float = atan2(fx, fy);
else
rettv->vval.v_float = 0.0;
}
#endif
/*
* "browse(save, title, initdir, default)" function
*/
static void
f_browse(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_BROWSE
int save;
char_u *title;
char_u *initdir;
char_u *defname;
char_u buf[NUMBUFLEN];
char_u buf2[NUMBUFLEN];
int error = FALSE;
save = get_tv_number_chk(&argvars[0], &error);
title = get_tv_string_chk(&argvars[1]);
initdir = get_tv_string_buf_chk(&argvars[2], buf);
defname = get_tv_string_buf_chk(&argvars[3], buf2);
if (error || title == NULL || initdir == NULL || defname == NULL)
rettv->vval.v_string = NULL;
else
rettv->vval.v_string =
do_browse(save ? BROWSE_SAVE : 0,
title, defname, NULL, initdir, NULL, curbuf);
#else
rettv->vval.v_string = NULL;
#endif
rettv->v_type = VAR_STRING;
}
/*
* "browsedir(title, initdir)" function
*/
static void
f_browsedir(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_BROWSE
char_u *title;
char_u *initdir;
char_u buf[NUMBUFLEN];
title = get_tv_string_chk(&argvars[0]);
initdir = get_tv_string_buf_chk(&argvars[1], buf);
if (title == NULL || initdir == NULL)
rettv->vval.v_string = NULL;
else
rettv->vval.v_string = do_browse(BROWSE_DIR,
title, NULL, NULL, initdir, NULL, curbuf);
#else
rettv->vval.v_string = NULL;
#endif
rettv->v_type = VAR_STRING;
}
static buf_T *find_buffer __ARGS((typval_T *avar));
/*
* Find a buffer by number or exact name.
*/
static buf_T *
find_buffer(avar)
typval_T *avar;
{
buf_T *buf = NULL;
if (avar->v_type == VAR_NUMBER)
buf = buflist_findnr((int)avar->vval.v_number);
else if (avar->v_type == VAR_STRING && avar->vval.v_string != NULL)
{
buf = buflist_findname_exp(avar->vval.v_string);
if (buf == NULL)
{
/* No full path name match, try a match with a URL or a "nofile"
* buffer, these don't use the full path. */
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
if (buf->b_fname != NULL
&& (path_with_url(buf->b_fname)
#ifdef FEAT_QUICKFIX
|| bt_nofile(buf)
#endif
)
&& STRCMP(buf->b_fname, avar->vval.v_string) == 0)
break;
}
}
return buf;
}
/*
* "bufexists(expr)" function
*/
static void
f_bufexists(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_number = (find_buffer(&argvars[0]) != NULL);
}
/*
* "buflisted(expr)" function
*/
static void
f_buflisted(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
buf_T *buf;
buf = find_buffer(&argvars[0]);
rettv->vval.v_number = (buf != NULL && buf->b_p_bl);
}
/*
* "bufloaded(expr)" function
*/
static void
f_bufloaded(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
buf_T *buf;
buf = find_buffer(&argvars[0]);
rettv->vval.v_number = (buf != NULL && buf->b_ml.ml_mfp != NULL);
}
static buf_T *get_buf_tv __ARGS((typval_T *tv, int curtab_only));
/*
* Get buffer by number or pattern.
*/
static buf_T *
get_buf_tv(tv, curtab_only)
typval_T *tv;
int curtab_only;
{
char_u *name = tv->vval.v_string;
int save_magic;
char_u *save_cpo;
buf_T *buf;
if (tv->v_type == VAR_NUMBER)
return buflist_findnr((int)tv->vval.v_number);
if (tv->v_type != VAR_STRING)
return NULL;
if (name == NULL || *name == NUL)
return curbuf;
if (name[0] == '$' && name[1] == NUL)
return lastbuf;
/* Ignore 'magic' and 'cpoptions' here to make scripts portable */
save_magic = p_magic;
p_magic = TRUE;
save_cpo = p_cpo;
p_cpo = (char_u *)"";
buf = buflist_findnr(buflist_findpat(name, name + STRLEN(name),
TRUE, FALSE, curtab_only));
p_magic = save_magic;
p_cpo = save_cpo;
/* If not found, try expanding the name, like done for bufexists(). */
if (buf == NULL)
buf = find_buffer(tv);
return buf;
}
/*
* "bufname(expr)" function
*/
static void
f_bufname(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
buf_T *buf;
(void)get_tv_number(&argvars[0]); /* issue errmsg if type error */
++emsg_off;
buf = get_buf_tv(&argvars[0], FALSE);
rettv->v_type = VAR_STRING;
if (buf != NULL && buf->b_fname != NULL)
rettv->vval.v_string = vim_strsave(buf->b_fname);
else
rettv->vval.v_string = NULL;
--emsg_off;
}
/*
* "bufnr(expr)" function
*/
static void
f_bufnr(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
buf_T *buf;
int error = FALSE;
char_u *name;
(void)get_tv_number(&argvars[0]); /* issue errmsg if type error */
++emsg_off;
buf = get_buf_tv(&argvars[0], FALSE);
--emsg_off;
/* If the buffer isn't found and the second argument is not zero create a
* new buffer. */
if (buf == NULL
&& argvars[1].v_type != VAR_UNKNOWN
&& get_tv_number_chk(&argvars[1], &error) != 0
&& !error
&& (name = get_tv_string_chk(&argvars[0])) != NULL
&& !error)
buf = buflist_new(name, NULL, (linenr_T)1, 0);
if (buf != NULL)
rettv->vval.v_number = buf->b_fnum;
else
rettv->vval.v_number = -1;
}
/*
* "bufwinnr(nr)" function
*/
static void
f_bufwinnr(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
#ifdef FEAT_WINDOWS
win_T *wp;
int winnr = 0;
#endif
buf_T *buf;
(void)get_tv_number(&argvars[0]); /* issue errmsg if type error */
++emsg_off;
buf = get_buf_tv(&argvars[0], TRUE);
#ifdef FEAT_WINDOWS
for (wp = firstwin; wp; wp = wp->w_next)
{
++winnr;
if (wp->w_buffer == buf)
break;
}
rettv->vval.v_number = (wp != NULL ? winnr : -1);
#else
rettv->vval.v_number = (curwin->w_buffer == buf ? 1 : -1);
#endif
--emsg_off;
}
/*
* "byte2line(byte)" function
*/
static void
f_byte2line(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifndef FEAT_BYTEOFF
rettv->vval.v_number = -1;
#else
long boff = 0;
boff = get_tv_number(&argvars[0]) - 1; /* boff gets -1 on type error */
if (boff < 0)
rettv->vval.v_number = -1;
else
rettv->vval.v_number = ml_find_line_or_offset(curbuf,
(linenr_T)0, &boff);
#endif
}
static void
byteidx(argvars, rettv, comp)
typval_T *argvars;
typval_T *rettv;
int comp UNUSED;
{
#ifdef FEAT_MBYTE
char_u *t;
#endif
char_u *str;
long idx;
str = get_tv_string_chk(&argvars[0]);
idx = get_tv_number_chk(&argvars[1], NULL);
rettv->vval.v_number = -1;
if (str == NULL || idx < 0)
return;
#ifdef FEAT_MBYTE
t = str;
for ( ; idx > 0; idx--)
{
if (*t == NUL) /* EOL reached */
return;
if (enc_utf8 && comp)
t += utf_ptr2len(t);
else
t += (*mb_ptr2len)(t);
}
rettv->vval.v_number = (varnumber_T)(t - str);
#else
if ((size_t)idx <= STRLEN(str))
rettv->vval.v_number = idx;
#endif
}
/*
* "byteidx()" function
*/
static void
f_byteidx(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
byteidx(argvars, rettv, FALSE);
}
/*
* "byteidxcomp()" function
*/
static void
f_byteidxcomp(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
byteidx(argvars, rettv, TRUE);
}
int
func_call(name, args, selfdict, rettv)
char_u *name;
typval_T *args;
dict_T *selfdict;
typval_T *rettv;
{
listitem_T *item;
typval_T argv[MAX_FUNC_ARGS + 1];
int argc = 0;
int dummy;
int r = 0;
for (item = args->vval.v_list->lv_first; item != NULL;
item = item->li_next)
{
if (argc == MAX_FUNC_ARGS)
{
EMSG(_("E699: Too many arguments"));
break;
}
/* Make a copy of each argument. This is needed to be able to set
* v_lock to VAR_FIXED in the copy without changing the original list.
*/
copy_tv(&item->li_tv, &argv[argc++]);
}
if (item == NULL)
r = call_func(name, (int)STRLEN(name), rettv, argc, argv,
curwin->w_cursor.lnum, curwin->w_cursor.lnum,
&dummy, TRUE, selfdict);
/* Free the arguments. */
while (argc > 0)
clear_tv(&argv[--argc]);
return r;
}
/*
* "call(func, arglist)" function
*/
static void
f_call(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *func;
dict_T *selfdict = NULL;
if (argvars[1].v_type != VAR_LIST)
{
EMSG(_(e_listreq));
return;
}
if (argvars[1].vval.v_list == NULL)
return;
if (argvars[0].v_type == VAR_FUNC)
func = argvars[0].vval.v_string;
else
func = get_tv_string(&argvars[0]);
if (*func == NUL)
return; /* type error or empty name */
if (argvars[2].v_type != VAR_UNKNOWN)
{
if (argvars[2].v_type != VAR_DICT)
{
EMSG(_(e_dictreq));
return;
}
selfdict = argvars[2].vval.v_dict;
}
(void)func_call(func, &argvars[1], selfdict, rettv);
}
#ifdef FEAT_FLOAT
/*
* "ceil({float})" function
*/
static void
f_ceil(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = ceil(f);
else
rettv->vval.v_float = 0.0;
}
#endif
/*
* "changenr()" function
*/
static void
f_changenr(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = curbuf->b_u_seq_cur;
}
/*
* "char2nr(string)" function
*/
static void
f_char2nr(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
#ifdef FEAT_MBYTE
if (has_mbyte)
{
int utf8 = 0;
if (argvars[1].v_type != VAR_UNKNOWN)
utf8 = get_tv_number_chk(&argvars[1], NULL);
if (utf8)
rettv->vval.v_number = (*utf_ptr2char)(get_tv_string(&argvars[0]));
else
rettv->vval.v_number = (*mb_ptr2char)(get_tv_string(&argvars[0]));
}
else
#endif
rettv->vval.v_number = get_tv_string(&argvars[0])[0];
}
/*
* "cindent(lnum)" function
*/
static void
f_cindent(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_CINDENT
pos_T pos;
linenr_T lnum;
pos = curwin->w_cursor;
lnum = get_tv_lnum(argvars);
if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count)
{
curwin->w_cursor.lnum = lnum;
rettv->vval.v_number = get_c_indent();
curwin->w_cursor = pos;
}
else
#endif
rettv->vval.v_number = -1;
}
/*
* "clearmatches()" function
*/
static void
f_clearmatches(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_SEARCH_EXTRA
clear_matches(curwin);
#endif
}
/*
* "col(string)" function
*/
static void
f_col(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
colnr_T col = 0;
pos_T *fp;
int fnum = curbuf->b_fnum;
fp = var2fpos(&argvars[0], FALSE, &fnum);
if (fp != NULL && fnum == curbuf->b_fnum)
{
if (fp->col == MAXCOL)
{
/* '> can be MAXCOL, get the length of the line then */
if (fp->lnum <= curbuf->b_ml.ml_line_count)
col = (colnr_T)STRLEN(ml_get(fp->lnum)) + 1;
else
col = MAXCOL;
}
else
{
col = fp->col + 1;
#ifdef FEAT_VIRTUALEDIT
/* col(".") when the cursor is on the NUL at the end of the line
* because of "coladd" can be seen as an extra column. */
if (virtual_active() && fp == &curwin->w_cursor)
{
char_u *p = ml_get_cursor();
if (curwin->w_cursor.coladd >= (colnr_T)chartabsize(p,
curwin->w_virtcol - curwin->w_cursor.coladd))
{
# ifdef FEAT_MBYTE
int l;
if (*p != NUL && p[(l = (*mb_ptr2len)(p))] == NUL)
col += l;
# else
if (*p != NUL && p[1] == NUL)
++col;
# endif
}
}
#endif
}
}
rettv->vval.v_number = col;
}
#if defined(FEAT_INS_EXPAND)
/*
* "complete()" function
*/
static void
f_complete(argvars, rettv)
typval_T *argvars;
typval_T *rettv UNUSED;
{
int startcol;
if ((State & INSERT) == 0)
{
EMSG(_("E785: complete() can only be used in Insert mode"));
return;
}
/* Check for undo allowed here, because if something was already inserted
* the line was already saved for undo and this check isn't done. */
if (!undo_allowed())
return;
if (argvars[1].v_type != VAR_LIST || argvars[1].vval.v_list == NULL)
{
EMSG(_(e_invarg));
return;
}
startcol = get_tv_number_chk(&argvars[0], NULL);
if (startcol <= 0)
return;
set_completion(startcol - 1, argvars[1].vval.v_list);
}
/*
* "complete_add()" function
*/
static void
f_complete_add(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_number = ins_compl_add_tv(&argvars[0], 0);
}
/*
* "complete_check()" function
*/
static void
f_complete_check(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
int saved = RedrawingDisabled;
RedrawingDisabled = 0;
ins_compl_check_keys(0);
rettv->vval.v_number = compl_interrupted;
RedrawingDisabled = saved;
}
#endif
/*
* "confirm(message, buttons[, default [, type]])" function
*/
static void
f_confirm(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
char_u *message;
char_u *buttons = NULL;
char_u buf[NUMBUFLEN];
char_u buf2[NUMBUFLEN];
int def = 1;
int type = VIM_GENERIC;
char_u *typestr;
int error = FALSE;
message = get_tv_string_chk(&argvars[0]);
if (message == NULL)
error = TRUE;
if (argvars[1].v_type != VAR_UNKNOWN)
{
buttons = get_tv_string_buf_chk(&argvars[1], buf);
if (buttons == NULL)
error = TRUE;
if (argvars[2].v_type != VAR_UNKNOWN)
{
def = get_tv_number_chk(&argvars[2], &error);
if (argvars[3].v_type != VAR_UNKNOWN)
{
typestr = get_tv_string_buf_chk(&argvars[3], buf2);
if (typestr == NULL)
error = TRUE;
else
{
switch (TOUPPER_ASC(*typestr))
{
case 'E': type = VIM_ERROR; break;
case 'Q': type = VIM_QUESTION; break;
case 'I': type = VIM_INFO; break;
case 'W': type = VIM_WARNING; break;
case 'G': type = VIM_GENERIC; break;
}
}
}
}
}
if (buttons == NULL || *buttons == NUL)
buttons = (char_u *)_("&Ok");
if (!error)
rettv->vval.v_number = do_dialog(type, NULL, message, buttons,
def, NULL, FALSE);
#endif
}
/*
* "copy()" function
*/
static void
f_copy(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
item_copy(&argvars[0], rettv, FALSE, 0);
}
#ifdef FEAT_FLOAT
/*
* "cos()" function
*/
static void
f_cos(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = cos(f);
else
rettv->vval.v_float = 0.0;
}
/*
* "cosh()" function
*/
static void
f_cosh(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = cosh(f);
else
rettv->vval.v_float = 0.0;
}
#endif
/*
* "count()" function
*/
static void
f_count(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
long n = 0;
int ic = FALSE;
if (argvars[0].v_type == VAR_LIST)
{
listitem_T *li;
list_T *l;
long idx;
if ((l = argvars[0].vval.v_list) != NULL)
{
li = l->lv_first;
if (argvars[2].v_type != VAR_UNKNOWN)
{
int error = FALSE;
ic = get_tv_number_chk(&argvars[2], &error);
if (argvars[3].v_type != VAR_UNKNOWN)
{
idx = get_tv_number_chk(&argvars[3], &error);
if (!error)
{
li = list_find(l, idx);
if (li == NULL)
EMSGN(_(e_listidx), idx);
}
}
if (error)
li = NULL;
}
for ( ; li != NULL; li = li->li_next)
if (tv_equal(&li->li_tv, &argvars[1], ic, FALSE))
++n;
}
}
else if (argvars[0].v_type == VAR_DICT)
{
int todo;
dict_T *d;
hashitem_T *hi;
if ((d = argvars[0].vval.v_dict) != NULL)
{
int error = FALSE;
if (argvars[2].v_type != VAR_UNKNOWN)
{
ic = get_tv_number_chk(&argvars[2], &error);
if (argvars[3].v_type != VAR_UNKNOWN)
EMSG(_(e_invarg));
}
todo = error ? 0 : (int)d->dv_hashtab.ht_used;
for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
if (tv_equal(&HI2DI(hi)->di_tv, &argvars[1], ic, FALSE))
++n;
}
}
}
}
else
EMSG2(_(e_listdictarg), "count()");
rettv->vval.v_number = n;
}
/*
* "cscope_connection([{num} , {dbpath} [, {prepend}]])" function
*
* Checks the existence of a cscope connection.
*/
static void
f_cscope_connection(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_CSCOPE
int num = 0;
char_u *dbpath = NULL;
char_u *prepend = NULL;
char_u buf[NUMBUFLEN];
if (argvars[0].v_type != VAR_UNKNOWN
&& argvars[1].v_type != VAR_UNKNOWN)
{
num = (int)get_tv_number(&argvars[0]);
dbpath = get_tv_string(&argvars[1]);
if (argvars[2].v_type != VAR_UNKNOWN)
prepend = get_tv_string_buf(&argvars[2], buf);
}
rettv->vval.v_number = cs_connection(num, dbpath, prepend);
#endif
}
/*
* "cursor(lnum, col)" function, or
* "cursor(list)"
*
* Moves the cursor to the specified line and column.
* Returns 0 when the position could be set, -1 otherwise.
*/
static void
f_cursor(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
long line, col;
#ifdef FEAT_VIRTUALEDIT
long coladd = 0;
#endif
int set_curswant = TRUE;
rettv->vval.v_number = -1;
if (argvars[1].v_type == VAR_UNKNOWN)
{
pos_T pos;
colnr_T curswant = -1;
if (list2fpos(argvars, &pos, NULL, &curswant) == FAIL)
{
EMSG(_(e_invarg));
return;
}
line = pos.lnum;
col = pos.col;
#ifdef FEAT_VIRTUALEDIT
coladd = pos.coladd;
#endif
if (curswant >= 0)
{
curwin->w_curswant = curswant - 1;
set_curswant = FALSE;
}
}
else
{
line = get_tv_lnum(argvars);
col = get_tv_number_chk(&argvars[1], NULL);
#ifdef FEAT_VIRTUALEDIT
if (argvars[2].v_type != VAR_UNKNOWN)
coladd = get_tv_number_chk(&argvars[2], NULL);
#endif
}
if (line < 0 || col < 0
#ifdef FEAT_VIRTUALEDIT
|| coladd < 0
#endif
)
return; /* type error; errmsg already given */
if (line > 0)
curwin->w_cursor.lnum = line;
if (col > 0)
curwin->w_cursor.col = col - 1;
#ifdef FEAT_VIRTUALEDIT
curwin->w_cursor.coladd = coladd;
#endif
/* Make sure the cursor is in a valid position. */
check_cursor();
#ifdef FEAT_MBYTE
/* Correct cursor for multi-byte character. */
if (has_mbyte)
mb_adjust_cursor();
#endif
curwin->w_set_curswant = set_curswant;
rettv->vval.v_number = 0;
}
/*
* "deepcopy()" function
*/
static void
f_deepcopy(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int noref = 0;
if (argvars[1].v_type != VAR_UNKNOWN)
noref = get_tv_number_chk(&argvars[1], NULL);
if (noref < 0 || noref > 1)
EMSG(_(e_invarg));
else
{
current_copyID += COPYID_INC;
item_copy(&argvars[0], rettv, TRUE, noref == 0 ? current_copyID : 0);
}
}
/*
* "delete()" function
*/
static void
f_delete(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u nbuf[NUMBUFLEN];
char_u *name;
char_u *flags;
rettv->vval.v_number = -1;
if (check_restricted() || check_secure())
return;
name = get_tv_string(&argvars[0]);
if (name == NULL || *name == NUL)
{
EMSG(_(e_invarg));
return;
}
if (argvars[1].v_type != VAR_UNKNOWN)
flags = get_tv_string_buf(&argvars[1], nbuf);
else
flags = (char_u *)"";
if (*flags == NUL)
/* delete a file */
rettv->vval.v_number = mch_remove(name) == 0 ? 0 : -1;
else if (STRCMP(flags, "d") == 0)
/* delete an empty directory */
rettv->vval.v_number = mch_rmdir(name) == 0 ? 0 : -1;
else if (STRCMP(flags, "rf") == 0)
/* delete a directory recursively */
rettv->vval.v_number = delete_recursive(name);
else
EMSG2(_(e_invexpr2), flags);
}
/*
* "did_filetype()" function
*/
static void
f_did_filetype(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_AUTOCMD
rettv->vval.v_number = did_filetype;
#endif
}
/*
* "diff_filler()" function
*/
static void
f_diff_filler(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_DIFF
rettv->vval.v_number = diff_check_fill(curwin, get_tv_lnum(argvars));
#endif
}
/*
* "diff_hlID()" function
*/
static void
f_diff_hlID(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_DIFF
linenr_T lnum = get_tv_lnum(argvars);
static linenr_T prev_lnum = 0;
static int changedtick = 0;
static int fnum = 0;
static int change_start = 0;
static int change_end = 0;
static hlf_T hlID = (hlf_T)0;
int filler_lines;
int col;
if (lnum < 0) /* ignore type error in {lnum} arg */
lnum = 0;
if (lnum != prev_lnum
|| changedtick != curbuf->b_changedtick
|| fnum != curbuf->b_fnum)
{
/* New line, buffer, change: need to get the values. */
filler_lines = diff_check(curwin, lnum);
if (filler_lines < 0)
{
if (filler_lines == -1)
{
change_start = MAXCOL;
change_end = -1;
if (diff_find_change(curwin, lnum, &change_start, &change_end))
hlID = HLF_ADD; /* added line */
else
hlID = HLF_CHD; /* changed line */
}
else
hlID = HLF_ADD; /* added line */
}
else
hlID = (hlf_T)0;
prev_lnum = lnum;
changedtick = curbuf->b_changedtick;
fnum = curbuf->b_fnum;
}
if (hlID == HLF_CHD || hlID == HLF_TXD)
{
col = get_tv_number(&argvars[1]) - 1; /* ignore type error in {col} */
if (col >= change_start && col <= change_end)
hlID = HLF_TXD; /* changed text */
else
hlID = HLF_CHD; /* changed line */
}
rettv->vval.v_number = hlID == (hlf_T)0 ? 0 : (int)hlID;
#endif
}
/*
* "empty({expr})" function
*/
static void
f_empty(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int n;
switch (argvars[0].v_type)
{
case VAR_STRING:
case VAR_FUNC:
n = argvars[0].vval.v_string == NULL
|| *argvars[0].vval.v_string == NUL;
break;
case VAR_NUMBER:
n = argvars[0].vval.v_number == 0;
break;
#ifdef FEAT_FLOAT
case VAR_FLOAT:
n = argvars[0].vval.v_float == 0.0;
break;
#endif
case VAR_LIST:
n = argvars[0].vval.v_list == NULL
|| argvars[0].vval.v_list->lv_first == NULL;
break;
case VAR_DICT:
n = argvars[0].vval.v_dict == NULL
|| argvars[0].vval.v_dict->dv_hashtab.ht_used == 0;
break;
default:
EMSG2(_(e_intern2), "f_empty()");
n = 0;
}
rettv->vval.v_number = n;
}
/*
* "escape({string}, {chars})" function
*/
static void
f_escape(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u buf[NUMBUFLEN];
rettv->vval.v_string = vim_strsave_escaped(get_tv_string(&argvars[0]),
get_tv_string_buf(&argvars[1], buf));
rettv->v_type = VAR_STRING;
}
/*
* "eval()" function
*/
static void
f_eval(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *s, *p;
s = get_tv_string_chk(&argvars[0]);
if (s != NULL)
s = skipwhite(s);
p = s;
if (s == NULL || eval1(&s, rettv, TRUE) == FAIL)
{
if (p != NULL && !aborting())
EMSG2(_(e_invexpr2), p);
need_clr_eos = FALSE;
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = 0;
}
else if (*s != NUL)
EMSG(_(e_trailing));
}
/*
* "eventhandler()" function
*/
static void
f_eventhandler(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = vgetc_busy;
}
/*
* "executable()" function
*/
static void
f_executable(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *name = get_tv_string(&argvars[0]);
/* Check in $PATH and also check directly if there is a directory name. */
rettv->vval.v_number = mch_can_exe(name, NULL, TRUE)
|| (gettail(name) != name && mch_can_exe(name, NULL, FALSE));
}
/*
* "exepath()" function
*/
static void
f_exepath(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *p = NULL;
(void)mch_can_exe(get_tv_string(&argvars[0]), &p, TRUE);
rettv->v_type = VAR_STRING;
rettv->vval.v_string = p;
}
/*
* "exists()" function
*/
static void
f_exists(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *p;
char_u *name;
int n = FALSE;
int len = 0;
p = get_tv_string(&argvars[0]);
if (*p == '$') /* environment variable */
{
/* first try "normal" environment variables (fast) */
if (mch_getenv(p + 1) != NULL)
n = TRUE;
else
{
/* try expanding things like $VIM and ${HOME} */
p = expand_env_save(p);
if (p != NULL && *p != '$')
n = TRUE;
vim_free(p);
}
}
else if (*p == '&' || *p == '+') /* option */
{
n = (get_option_tv(&p, NULL, TRUE) == OK);
if (*skipwhite(p) != NUL)
n = FALSE; /* trailing garbage */
}
else if (*p == '*') /* internal or user defined function */
{
n = function_exists(p + 1);
}
else if (*p == ':')
{
n = cmd_exists(p + 1);
}
else if (*p == '#')
{
#ifdef FEAT_AUTOCMD
if (p[1] == '#')
n = autocmd_supported(p + 2);
else
n = au_exists(p + 1);
#endif
}
else /* internal variable */
{
char_u *tofree;
typval_T tv;
/* get_name_len() takes care of expanding curly braces */
name = p;
len = get_name_len(&p, &tofree, TRUE, FALSE);
if (len > 0)
{
if (tofree != NULL)
name = tofree;
n = (get_var_tv(name, len, &tv, NULL, FALSE, TRUE) == OK);
if (n)
{
/* handle d.key, l[idx], f(expr) */
n = (handle_subscript(&p, &tv, TRUE, FALSE) == OK);
if (n)
clear_tv(&tv);
}
}
if (*p != NUL)
n = FALSE;
vim_free(tofree);
}
rettv->vval.v_number = n;
}
#ifdef FEAT_FLOAT
/*
* "exp()" function
*/
static void
f_exp(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = exp(f);
else
rettv->vval.v_float = 0.0;
}
#endif
/*
* "expand()" function
*/
static void
f_expand(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *s;
int len;
char_u *errormsg;
int options = WILD_SILENT|WILD_USE_NL|WILD_LIST_NOTFOUND;
expand_T xpc;
int error = FALSE;
char_u *result;
rettv->v_type = VAR_STRING;
if (argvars[1].v_type != VAR_UNKNOWN
&& argvars[2].v_type != VAR_UNKNOWN
&& get_tv_number_chk(&argvars[2], &error)
&& !error)
{
rettv->v_type = VAR_LIST;
rettv->vval.v_list = NULL;
}
s = get_tv_string(&argvars[0]);
if (*s == '%' || *s == '#' || *s == '<')
{
++emsg_off;
result = eval_vars(s, s, &len, NULL, &errormsg, NULL);
--emsg_off;
if (rettv->v_type == VAR_LIST)
{
if (rettv_list_alloc(rettv) != FAIL && result != NULL)
list_append_string(rettv->vval.v_list, result, -1);
else
vim_free(result);
}
else
rettv->vval.v_string = result;
}
else
{
/* When the optional second argument is non-zero, don't remove matches
* for 'wildignore' and don't put matches for 'suffixes' at the end. */
if (argvars[1].v_type != VAR_UNKNOWN
&& get_tv_number_chk(&argvars[1], &error))
options |= WILD_KEEP_ALL;
if (!error)
{
ExpandInit(&xpc);
xpc.xp_context = EXPAND_FILES;
if (p_wic)
options += WILD_ICASE;
if (rettv->v_type == VAR_STRING)
rettv->vval.v_string = ExpandOne(&xpc, s, NULL,
options, WILD_ALL);
else if (rettv_list_alloc(rettv) != FAIL)
{
int i;
ExpandOne(&xpc, s, NULL, options, WILD_ALL_KEEP);
for (i = 0; i < xpc.xp_numfiles; i++)
list_append_string(rettv->vval.v_list, xpc.xp_files[i], -1);
ExpandCleanup(&xpc);
}
}
else
rettv->vval.v_string = NULL;
}
}
/*
* Go over all entries in "d2" and add them to "d1".
* When "action" is "error" then a duplicate key is an error.
* When "action" is "force" then a duplicate key is overwritten.
* Otherwise duplicate keys are ignored ("action" is "keep").
*/
void
dict_extend(d1, d2, action)
dict_T *d1;
dict_T *d2;
char_u *action;
{
dictitem_T *di1;
hashitem_T *hi2;
int todo;
char_u *arg_errmsg = (char_u *)N_("extend() argument");
todo = (int)d2->dv_hashtab.ht_used;
for (hi2 = d2->dv_hashtab.ht_array; todo > 0; ++hi2)
{
if (!HASHITEM_EMPTY(hi2))
{
--todo;
di1 = dict_find(d1, hi2->hi_key, -1);
if (d1->dv_scope != 0)
{
/* Disallow replacing a builtin function in l: and g:.
* Check the key to be valid when adding to any
* scope. */
if (d1->dv_scope == VAR_DEF_SCOPE
&& HI2DI(hi2)->di_tv.v_type == VAR_FUNC
&& var_check_func_name(hi2->hi_key,
di1 == NULL))
break;
if (!valid_varname(hi2->hi_key))
break;
}
if (di1 == NULL)
{
di1 = dictitem_copy(HI2DI(hi2));
if (di1 != NULL && dict_add(d1, di1) == FAIL)
dictitem_free(di1);
}
else if (*action == 'e')
{
EMSG2(_("E737: Key already exists: %s"), hi2->hi_key);
break;
}
else if (*action == 'f' && HI2DI(hi2) != di1)
{
if (tv_check_lock(di1->di_tv.v_lock, arg_errmsg, TRUE)
|| var_check_ro(di1->di_flags, arg_errmsg, TRUE))
break;
clear_tv(&di1->di_tv);
copy_tv(&HI2DI(hi2)->di_tv, &di1->di_tv);
}
}
}
}
/*
* "extend(list, list [, idx])" function
* "extend(dict, dict [, action])" function
*/
static void
f_extend(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *arg_errmsg = (char_u *)N_("extend() argument");
if (argvars[0].v_type == VAR_LIST && argvars[1].v_type == VAR_LIST)
{
list_T *l1, *l2;
listitem_T *item;
long before;
int error = FALSE;
l1 = argvars[0].vval.v_list;
l2 = argvars[1].vval.v_list;
if (l1 != NULL && !tv_check_lock(l1->lv_lock, arg_errmsg, TRUE)
&& l2 != NULL)
{
if (argvars[2].v_type != VAR_UNKNOWN)
{
before = get_tv_number_chk(&argvars[2], &error);
if (error)
return; /* type error; errmsg already given */
if (before == l1->lv_len)
item = NULL;
else
{
item = list_find(l1, before);
if (item == NULL)
{
EMSGN(_(e_listidx), before);
return;
}
}
}
else
item = NULL;
list_extend(l1, l2, item);
copy_tv(&argvars[0], rettv);
}
}
else if (argvars[0].v_type == VAR_DICT && argvars[1].v_type == VAR_DICT)
{
dict_T *d1, *d2;
char_u *action;
int i;
d1 = argvars[0].vval.v_dict;
d2 = argvars[1].vval.v_dict;
if (d1 != NULL && !tv_check_lock(d1->dv_lock, arg_errmsg, TRUE)
&& d2 != NULL)
{
/* Check the third argument. */
if (argvars[2].v_type != VAR_UNKNOWN)
{
static char *(av[]) = {"keep", "force", "error"};
action = get_tv_string_chk(&argvars[2]);
if (action == NULL)
return; /* type error; errmsg already given */
for (i = 0; i < 3; ++i)
if (STRCMP(action, av[i]) == 0)
break;
if (i == 3)
{
EMSG2(_(e_invarg2), action);
return;
}
}
else
action = (char_u *)"force";
dict_extend(d1, d2, action);
copy_tv(&argvars[0], rettv);
}
}
else
EMSG2(_(e_listdictarg), "extend()");
}
/*
* "feedkeys()" function
*/
static void
f_feedkeys(argvars, rettv)
typval_T *argvars;
typval_T *rettv UNUSED;
{
int remap = TRUE;
int insert = FALSE;
char_u *keys, *flags;
char_u nbuf[NUMBUFLEN];
int typed = FALSE;
int execute = FALSE;
char_u *keys_esc;
/* This is not allowed in the sandbox. If the commands would still be
* executed in the sandbox it would be OK, but it probably happens later,
* when "sandbox" is no longer set. */
if (check_secure())
return;
keys = get_tv_string(&argvars[0]);
if (*keys != NUL)
{
if (argvars[1].v_type != VAR_UNKNOWN)
{
flags = get_tv_string_buf(&argvars[1], nbuf);
for ( ; *flags != NUL; ++flags)
{
switch (*flags)
{
case 'n': remap = FALSE; break;
case 'm': remap = TRUE; break;
case 't': typed = TRUE; break;
case 'i': insert = TRUE; break;
case 'x': execute = TRUE; break;
}
}
}
/* Need to escape K_SPECIAL and CSI before putting the string in the
* typeahead buffer. */
keys_esc = vim_strsave_escape_csi(keys);
if (keys_esc != NULL)
{
ins_typebuf(keys_esc, (remap ? REMAP_YES : REMAP_NONE),
insert ? 0 : typebuf.tb_len, !typed, FALSE);
vim_free(keys_esc);
if (vgetc_busy)
typebuf_was_filled = TRUE;
if (execute)
exec_normal(TRUE);
}
}
}
/*
* "filereadable()" function
*/
static void
f_filereadable(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int fd;
char_u *p;
int n;
#ifndef O_NONBLOCK
# define O_NONBLOCK 0
#endif
p = get_tv_string(&argvars[0]);
if (*p && !mch_isdir(p) && (fd = mch_open((char *)p,
O_RDONLY | O_NONBLOCK, 0)) >= 0)
{
n = TRUE;
close(fd);
}
else
n = FALSE;
rettv->vval.v_number = n;
}
/*
* Return 0 for not writable, 1 for writable file, 2 for a dir which we have
* rights to write into.
*/
static void
f_filewritable(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_number = filewritable(get_tv_string(&argvars[0]));
}
static void findfilendir __ARGS((typval_T *argvars, typval_T *rettv, int find_what));
static void
findfilendir(argvars, rettv, find_what)
typval_T *argvars UNUSED;
typval_T *rettv;
int find_what UNUSED;
{
#ifdef FEAT_SEARCHPATH
char_u *fname;
char_u *fresult = NULL;
char_u *path = *curbuf->b_p_path == NUL ? p_path : curbuf->b_p_path;
char_u *p;
char_u pathbuf[NUMBUFLEN];
int count = 1;
int first = TRUE;
int error = FALSE;
#endif
rettv->vval.v_string = NULL;
rettv->v_type = VAR_STRING;
#ifdef FEAT_SEARCHPATH
fname = get_tv_string(&argvars[0]);
if (argvars[1].v_type != VAR_UNKNOWN)
{
p = get_tv_string_buf_chk(&argvars[1], pathbuf);
if (p == NULL)
error = TRUE;
else
{
if (*p != NUL)
path = p;
if (argvars[2].v_type != VAR_UNKNOWN)
count = get_tv_number_chk(&argvars[2], &error);
}
}
if (count < 0 && rettv_list_alloc(rettv) == FAIL)
error = TRUE;
if (*fname != NUL && !error)
{
do
{
if (rettv->v_type == VAR_STRING || rettv->v_type == VAR_LIST)
vim_free(fresult);
fresult = find_file_in_path_option(first ? fname : NULL,
first ? (int)STRLEN(fname) : 0,
0, first, path,
find_what,
curbuf->b_ffname,
find_what == FINDFILE_DIR
? (char_u *)"" : curbuf->b_p_sua);
first = FALSE;
if (fresult != NULL && rettv->v_type == VAR_LIST)
list_append_string(rettv->vval.v_list, fresult, -1);
} while ((rettv->v_type == VAR_LIST || --count > 0) && fresult != NULL);
}
if (rettv->v_type == VAR_STRING)
rettv->vval.v_string = fresult;
#endif
}
static void filter_map __ARGS((typval_T *argvars, typval_T *rettv, int map));
static int filter_map_one __ARGS((typval_T *tv, char_u *expr, int map, int *remp));
/*
* Implementation of map() and filter().
*/
static void
filter_map(argvars, rettv, map)
typval_T *argvars;
typval_T *rettv;
int map;
{
char_u buf[NUMBUFLEN];
char_u *expr;
listitem_T *li, *nli;
list_T *l = NULL;
dictitem_T *di;
hashtab_T *ht;
hashitem_T *hi;
dict_T *d = NULL;
typval_T save_val;
typval_T save_key;
int rem;
int todo;
char_u *ermsg = (char_u *)(map ? "map()" : "filter()");
char_u *arg_errmsg = (char_u *)(map ? N_("map() argument")
: N_("filter() argument"));
int save_did_emsg;
int idx = 0;
if (argvars[0].v_type == VAR_LIST)
{
if ((l = argvars[0].vval.v_list) == NULL
|| (!map && tv_check_lock(l->lv_lock, arg_errmsg, TRUE)))
return;
}
else if (argvars[0].v_type == VAR_DICT)
{
if ((d = argvars[0].vval.v_dict) == NULL
|| (!map && tv_check_lock(d->dv_lock, arg_errmsg, TRUE)))
return;
}
else
{
EMSG2(_(e_listdictarg), ermsg);
return;
}
expr = get_tv_string_buf_chk(&argvars[1], buf);
/* On type errors, the preceding call has already displayed an error
* message. Avoid a misleading error message for an empty string that
* was not passed as argument. */
if (expr != NULL)
{
prepare_vimvar(VV_VAL, &save_val);
expr = skipwhite(expr);
/* We reset "did_emsg" to be able to detect whether an error
* occurred during evaluation of the expression. */
save_did_emsg = did_emsg;
did_emsg = FALSE;
prepare_vimvar(VV_KEY, &save_key);
if (argvars[0].v_type == VAR_DICT)
{
vimvars[VV_KEY].vv_type = VAR_STRING;
ht = &d->dv_hashtab;
hash_lock(ht);
todo = (int)ht->ht_used;
for (hi = ht->ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
int r;
--todo;
di = HI2DI(hi);
if (map &&
(tv_check_lock(di->di_tv.v_lock, arg_errmsg, TRUE)
|| var_check_ro(di->di_flags, arg_errmsg, TRUE)))
break;
vimvars[VV_KEY].vv_str = vim_strsave(di->di_key);
r = filter_map_one(&di->di_tv, expr, map, &rem);
clear_tv(&vimvars[VV_KEY].vv_tv);
if (r == FAIL || did_emsg)
break;
if (!map && rem)
{
if (var_check_fixed(di->di_flags, arg_errmsg, TRUE)
|| var_check_ro(di->di_flags, arg_errmsg, TRUE))
break;
dictitem_remove(d, di);
}
}
}
hash_unlock(ht);
}
else
{
vimvars[VV_KEY].vv_type = VAR_NUMBER;
for (li = l->lv_first; li != NULL; li = nli)
{
if (map && tv_check_lock(li->li_tv.v_lock, arg_errmsg, TRUE))
break;
nli = li->li_next;
vimvars[VV_KEY].vv_nr = idx;
if (filter_map_one(&li->li_tv, expr, map, &rem) == FAIL
|| did_emsg)
break;
if (!map && rem)
listitem_remove(l, li);
++idx;
}
}
restore_vimvar(VV_KEY, &save_key);
restore_vimvar(VV_VAL, &save_val);
did_emsg |= save_did_emsg;
}
copy_tv(&argvars[0], rettv);
}
static int
filter_map_one(tv, expr, map, remp)
typval_T *tv;
char_u *expr;
int map;
int *remp;
{
typval_T rettv;
char_u *s;
int retval = FAIL;
copy_tv(tv, &vimvars[VV_VAL].vv_tv);
s = expr;
if (eval1(&s, &rettv, TRUE) == FAIL)
goto theend;
if (*s != NUL) /* check for trailing chars after expr */
{
EMSG2(_(e_invexpr2), s);
clear_tv(&rettv);
goto theend;
}
if (map)
{
/* map(): replace the list item value */
clear_tv(tv);
rettv.v_lock = 0;
*tv = rettv;
}
else
{
int error = FALSE;
/* filter(): when expr is zero remove the item */
*remp = (get_tv_number_chk(&rettv, &error) == 0);
clear_tv(&rettv);
/* On type error, nothing has been removed; return FAIL to stop the
* loop. The error message was given by get_tv_number_chk(). */
if (error)
goto theend;
}
retval = OK;
theend:
clear_tv(&vimvars[VV_VAL].vv_tv);
return retval;
}
/*
* "filter()" function
*/
static void
f_filter(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
filter_map(argvars, rettv, FALSE);
}
/*
* "finddir({fname}[, {path}[, {count}]])" function
*/
static void
f_finddir(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
findfilendir(argvars, rettv, FINDFILE_DIR);
}
/*
* "findfile({fname}[, {path}[, {count}]])" function
*/
static void
f_findfile(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
findfilendir(argvars, rettv, FINDFILE_FILE);
}
#ifdef FEAT_FLOAT
/*
* "float2nr({float})" function
*/
static void
f_float2nr(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
if (get_float_arg(argvars, &f) == OK)
{
if (f < -0x7fffffff)
rettv->vval.v_number = -0x7fffffff;
else if (f > 0x7fffffff)
rettv->vval.v_number = 0x7fffffff;
else
rettv->vval.v_number = (varnumber_T)f;
}
}
/*
* "floor({float})" function
*/
static void
f_floor(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = floor(f);
else
rettv->vval.v_float = 0.0;
}
/*
* "fmod()" function
*/
static void
f_fmod(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T fx, fy;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &fx) == OK
&& get_float_arg(&argvars[1], &fy) == OK)
rettv->vval.v_float = fmod(fx, fy);
else
rettv->vval.v_float = 0.0;
}
#endif
/*
* "fnameescape({string})" function
*/
static void
f_fnameescape(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_string = vim_strsave_fnameescape(
get_tv_string(&argvars[0]), FALSE);
rettv->v_type = VAR_STRING;
}
/*
* "fnamemodify({fname}, {mods})" function
*/
static void
f_fnamemodify(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *fname;
char_u *mods;
int usedlen = 0;
int len;
char_u *fbuf = NULL;
char_u buf[NUMBUFLEN];
fname = get_tv_string_chk(&argvars[0]);
mods = get_tv_string_buf_chk(&argvars[1], buf);
if (fname == NULL || mods == NULL)
fname = NULL;
else
{
len = (int)STRLEN(fname);
(void)modify_fname(mods, &usedlen, &fname, &fbuf, &len);
}
rettv->v_type = VAR_STRING;
if (fname == NULL)
rettv->vval.v_string = NULL;
else
rettv->vval.v_string = vim_strnsave(fname, len);
vim_free(fbuf);
}
static void foldclosed_both __ARGS((typval_T *argvars, typval_T *rettv, int end));
/*
* "foldclosed()" function
*/
static void
foldclosed_both(argvars, rettv, end)
typval_T *argvars UNUSED;
typval_T *rettv;
int end UNUSED;
{
#ifdef FEAT_FOLDING
linenr_T lnum;
linenr_T first, last;
lnum = get_tv_lnum(argvars);
if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count)
{
if (hasFoldingWin(curwin, lnum, &first, &last, FALSE, NULL))
{
if (end)
rettv->vval.v_number = (varnumber_T)last;
else
rettv->vval.v_number = (varnumber_T)first;
return;
}
}
#endif
rettv->vval.v_number = -1;
}
/*
* "foldclosed()" function
*/
static void
f_foldclosed(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
foldclosed_both(argvars, rettv, FALSE);
}
/*
* "foldclosedend()" function
*/
static void
f_foldclosedend(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
foldclosed_both(argvars, rettv, TRUE);
}
/*
* "foldlevel()" function
*/
static void
f_foldlevel(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_FOLDING
linenr_T lnum;
lnum = get_tv_lnum(argvars);
if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count)
rettv->vval.v_number = foldLevel(lnum);
#endif
}
/*
* "foldtext()" function
*/
static void
f_foldtext(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_FOLDING
linenr_T lnum;
char_u *s;
char_u *r;
int len;
char *txt;
#endif
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
#ifdef FEAT_FOLDING
if ((linenr_T)vimvars[VV_FOLDSTART].vv_nr > 0
&& (linenr_T)vimvars[VV_FOLDEND].vv_nr
<= curbuf->b_ml.ml_line_count
&& vimvars[VV_FOLDDASHES].vv_str != NULL)
{
/* Find first non-empty line in the fold. */
lnum = (linenr_T)vimvars[VV_FOLDSTART].vv_nr;
while (lnum < (linenr_T)vimvars[VV_FOLDEND].vv_nr)
{
if (!linewhite(lnum))
break;
++lnum;
}
/* Find interesting text in this line. */
s = skipwhite(ml_get(lnum));
/* skip C comment-start */
if (s[0] == '/' && (s[1] == '*' || s[1] == '/'))
{
s = skipwhite(s + 2);
if (*skipwhite(s) == NUL
&& lnum + 1 < (linenr_T)vimvars[VV_FOLDEND].vv_nr)
{
s = skipwhite(ml_get(lnum + 1));
if (*s == '*')
s = skipwhite(s + 1);
}
}
txt = _("+-%s%3ld lines: ");
r = alloc((unsigned)(STRLEN(txt)
+ STRLEN(vimvars[VV_FOLDDASHES].vv_str) /* for %s */
+ 20 /* for %3ld */
+ STRLEN(s))); /* concatenated */
if (r != NULL)
{
sprintf((char *)r, txt, vimvars[VV_FOLDDASHES].vv_str,
(long)((linenr_T)vimvars[VV_FOLDEND].vv_nr
- (linenr_T)vimvars[VV_FOLDSTART].vv_nr + 1));
len = (int)STRLEN(r);
STRCAT(r, s);
/* remove 'foldmarker' and 'commentstring' */
foldtext_cleanup(r + len);
rettv->vval.v_string = r;
}
}
#endif
}
/*
* "foldtextresult(lnum)" function
*/
static void
f_foldtextresult(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_FOLDING
linenr_T lnum;
char_u *text;
char_u buf[51];
foldinfo_T foldinfo;
int fold_count;
#endif
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
#ifdef FEAT_FOLDING
lnum = get_tv_lnum(argvars);
/* treat illegal types and illegal string values for {lnum} the same */
if (lnum < 0)
lnum = 0;
fold_count = foldedCount(curwin, lnum, &foldinfo);
if (fold_count > 0)
{
text = get_foldtext(curwin, lnum, lnum + fold_count - 1,
&foldinfo, buf);
if (text == buf)
text = vim_strsave(text);
rettv->vval.v_string = text;
}
#endif
}
/*
* "foreground()" function
*/
static void
f_foreground(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_GUI
if (gui.in_use)
gui_mch_set_foreground();
#else
# ifdef WIN32
win32_set_foreground();
# endif
#endif
}
/*
* "function()" function
*/
static void
f_function(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *s;
s = get_tv_string(&argvars[0]);
if (s == NULL || *s == NUL || VIM_ISDIGIT(*s))
EMSG2(_(e_invarg2), s);
/* Don't check an autoload name for existence here. */
else if (vim_strchr(s, AUTOLOAD_CHAR) == NULL && !function_exists(s))
EMSG2(_("E700: Unknown function: %s"), s);
else
{
if (STRNCMP(s, "s:", 2) == 0 || STRNCMP(s, "<SID>", 5) == 0)
{
char sid_buf[25];
int off = *s == 's' ? 2 : 5;
/* Expand s: and <SID> into <SNR>nr_, so that the function can
* also be called from another script. Using trans_function_name()
* would also work, but some plugins depend on the name being
* printable text. */
sprintf(sid_buf, "<SNR>%ld_", (long)current_SID);
rettv->vval.v_string =
alloc((int)(STRLEN(sid_buf) + STRLEN(s + off) + 1));
if (rettv->vval.v_string != NULL)
{
STRCPY(rettv->vval.v_string, sid_buf);
STRCAT(rettv->vval.v_string, s + off);
}
}
else
rettv->vval.v_string = vim_strsave(s);
rettv->v_type = VAR_FUNC;
}
}
/*
* "garbagecollect()" function
*/
static void
f_garbagecollect(argvars, rettv)
typval_T *argvars;
typval_T *rettv UNUSED;
{
/* This is postponed until we are back at the toplevel, because we may be
* using Lists and Dicts internally. E.g.: ":echo [garbagecollect()]". */
want_garbage_collect = TRUE;
if (argvars[0].v_type != VAR_UNKNOWN && get_tv_number(&argvars[0]) == 1)
garbage_collect_at_exit = TRUE;
}
/*
* "get()" function
*/
static void
f_get(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
listitem_T *li;
list_T *l;
dictitem_T *di;
dict_T *d;
typval_T *tv = NULL;
if (argvars[0].v_type == VAR_LIST)
{
if ((l = argvars[0].vval.v_list) != NULL)
{
int error = FALSE;
li = list_find(l, get_tv_number_chk(&argvars[1], &error));
if (!error && li != NULL)
tv = &li->li_tv;
}
}
else if (argvars[0].v_type == VAR_DICT)
{
if ((d = argvars[0].vval.v_dict) != NULL)
{
di = dict_find(d, get_tv_string(&argvars[1]), -1);
if (di != NULL)
tv = &di->di_tv;
}
}
else
EMSG2(_(e_listdictarg), "get()");
if (tv == NULL)
{
if (argvars[2].v_type != VAR_UNKNOWN)
copy_tv(&argvars[2], rettv);
}
else
copy_tv(tv, rettv);
}
static void get_buffer_lines __ARGS((buf_T *buf, linenr_T start, linenr_T end, int retlist, typval_T *rettv));
/*
* Get line or list of lines from buffer "buf" into "rettv".
* Return a range (from start to end) of lines in rettv from the specified
* buffer.
* If 'retlist' is TRUE, then the lines are returned as a Vim List.
*/
static void
get_buffer_lines(buf, start, end, retlist, rettv)
buf_T *buf;
linenr_T start;
linenr_T end;
int retlist;
typval_T *rettv;
{
char_u *p;
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
if (retlist && rettv_list_alloc(rettv) == FAIL)
return;
if (buf == NULL || buf->b_ml.ml_mfp == NULL || start < 0)
return;
if (!retlist)
{
if (start >= 1 && start <= buf->b_ml.ml_line_count)
p = ml_get_buf(buf, start, FALSE);
else
p = (char_u *)"";
rettv->vval.v_string = vim_strsave(p);
}
else
{
if (end < start)
return;
if (start < 1)
start = 1;
if (end > buf->b_ml.ml_line_count)
end = buf->b_ml.ml_line_count;
while (start <= end)
if (list_append_string(rettv->vval.v_list,
ml_get_buf(buf, start++, FALSE), -1) == FAIL)
break;
}
}
/*
* "getbufline()" function
*/
static void
f_getbufline(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
linenr_T lnum;
linenr_T end;
buf_T *buf;
(void)get_tv_number(&argvars[0]); /* issue errmsg if type error */
++emsg_off;
buf = get_buf_tv(&argvars[0], FALSE);
--emsg_off;
lnum = get_tv_lnum_buf(&argvars[1], buf);
if (argvars[2].v_type == VAR_UNKNOWN)
end = lnum;
else
end = get_tv_lnum_buf(&argvars[2], buf);
get_buffer_lines(buf, lnum, end, TRUE, rettv);
}
/*
* "getbufvar()" function
*/
static void
f_getbufvar(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
buf_T *buf;
buf_T *save_curbuf;
char_u *varname;
dictitem_T *v;
int done = FALSE;
(void)get_tv_number(&argvars[0]); /* issue errmsg if type error */
varname = get_tv_string_chk(&argvars[1]);
++emsg_off;
buf = get_buf_tv(&argvars[0], FALSE);
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
if (buf != NULL && varname != NULL)
{
/* set curbuf to be our buf, temporarily */
save_curbuf = curbuf;
curbuf = buf;
if (*varname == '&') /* buffer-local-option */
{
if (get_option_tv(&varname, rettv, TRUE) == OK)
done = TRUE;
}
else if (STRCMP(varname, "changedtick") == 0)
{
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = curbuf->b_changedtick;
done = TRUE;
}
else
{
/* Look up the variable. */
/* Let getbufvar({nr}, "") return the "b:" dictionary. */
v = find_var_in_ht(&curbuf->b_vars->dv_hashtab,
'b', varname, FALSE);
if (v != NULL)
{
copy_tv(&v->di_tv, rettv);
done = TRUE;
}
}
/* restore previous notion of curbuf */
curbuf = save_curbuf;
}
if (!done && argvars[2].v_type != VAR_UNKNOWN)
/* use the default value */
copy_tv(&argvars[2], rettv);
--emsg_off;
}
/*
* "getchar()" function
*/
static void
f_getchar(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
varnumber_T n;
int error = FALSE;
/* Position the cursor. Needed after a message that ends in a space. */
windgoto(msg_row, msg_col);
++no_mapping;
++allow_keys;
for (;;)
{
if (argvars[0].v_type == VAR_UNKNOWN)
/* getchar(): blocking wait. */
n = safe_vgetc();
else if (get_tv_number_chk(&argvars[0], &error) == 1)
/* getchar(1): only check if char avail */
n = vpeekc_any();
else if (error || vpeekc_any() == NUL)
/* illegal argument or getchar(0) and no char avail: return zero */
n = 0;
else
/* getchar(0) and char avail: return char */
n = safe_vgetc();
if (n == K_IGNORE)
continue;
break;
}
--no_mapping;
--allow_keys;
vimvars[VV_MOUSE_WIN].vv_nr = 0;
vimvars[VV_MOUSE_LNUM].vv_nr = 0;
vimvars[VV_MOUSE_COL].vv_nr = 0;
rettv->vval.v_number = n;
if (IS_SPECIAL(n) || mod_mask != 0)
{
char_u temp[10]; /* modifier: 3, mbyte-char: 6, NUL: 1 */
int i = 0;
/* Turn a special key into three bytes, plus modifier. */
if (mod_mask != 0)
{
temp[i++] = K_SPECIAL;
temp[i++] = KS_MODIFIER;
temp[i++] = mod_mask;
}
if (IS_SPECIAL(n))
{
temp[i++] = K_SPECIAL;
temp[i++] = K_SECOND(n);
temp[i++] = K_THIRD(n);
}
#ifdef FEAT_MBYTE
else if (has_mbyte)
i += (*mb_char2bytes)(n, temp + i);
#endif
else
temp[i++] = n;
temp[i++] = NUL;
rettv->v_type = VAR_STRING;
rettv->vval.v_string = vim_strsave(temp);
#ifdef FEAT_MOUSE
if (is_mouse_key(n))
{
int row = mouse_row;
int col = mouse_col;
win_T *win;
linenr_T lnum;
# ifdef FEAT_WINDOWS
win_T *wp;
# endif
int winnr = 1;
if (row >= 0 && col >= 0)
{
/* Find the window at the mouse coordinates and compute the
* text position. */
win = mouse_find_win(&row, &col);
(void)mouse_comp_pos(win, &row, &col, &lnum);
# ifdef FEAT_WINDOWS
for (wp = firstwin; wp != win; wp = wp->w_next)
++winnr;
# endif
vimvars[VV_MOUSE_WIN].vv_nr = winnr;
vimvars[VV_MOUSE_LNUM].vv_nr = lnum;
vimvars[VV_MOUSE_COL].vv_nr = col + 1;
}
}
#endif
}
}
/*
* "getcharmod()" function
*/
static void
f_getcharmod(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = mod_mask;
}
/*
* "getcharsearch()" function
*/
static void
f_getcharsearch(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
if (rettv_dict_alloc(rettv) != FAIL)
{
dict_T *dict = rettv->vval.v_dict;
dict_add_nr_str(dict, "char", 0L, last_csearch());
dict_add_nr_str(dict, "forward", last_csearch_forward(), NULL);
dict_add_nr_str(dict, "until", last_csearch_until(), NULL);
}
}
/*
* "getcmdline()" function
*/
static void
f_getcmdline(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = get_cmdline_str();
}
/*
* "getcmdpos()" function
*/
static void
f_getcmdpos(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = get_cmdline_pos() + 1;
}
/*
* "getcmdtype()" function
*/
static void
f_getcmdtype(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = alloc(2);
if (rettv->vval.v_string != NULL)
{
rettv->vval.v_string[0] = get_cmdline_type();
rettv->vval.v_string[1] = NUL;
}
}
/*
* "getcmdwintype()" function
*/
static void
f_getcmdwintype(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
#ifdef FEAT_CMDWIN
rettv->vval.v_string = alloc(2);
if (rettv->vval.v_string != NULL)
{
rettv->vval.v_string[0] = cmdwin_type;
rettv->vval.v_string[1] = NUL;
}
#endif
}
/*
* "getcwd()" function
*/
static void
f_getcwd(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
win_T *wp = NULL;
char_u *cwd;
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
wp = find_tabwin(&argvars[0], &argvars[1]);
if (wp != NULL)
{
if (wp->w_localdir != NULL)
rettv->vval.v_string = vim_strsave(wp->w_localdir);
else if(globaldir != NULL)
rettv->vval.v_string = vim_strsave(globaldir);
else
{
cwd = alloc(MAXPATHL);
if (cwd != NULL)
{
if (mch_dirname(cwd, MAXPATHL) != FAIL)
rettv->vval.v_string = vim_strsave(cwd);
vim_free(cwd);
}
}
#ifdef BACKSLASH_IN_FILENAME
if (rettv->vval.v_string != NULL)
slash_adjust(rettv->vval.v_string);
#endif
}
}
/*
* "getfontname()" function
*/
static void
f_getfontname(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
#ifdef FEAT_GUI
if (gui.in_use)
{
GuiFont font;
char_u *name = NULL;
if (argvars[0].v_type == VAR_UNKNOWN)
{
/* Get the "Normal" font. Either the name saved by
* hl_set_font_name() or from the font ID. */
font = gui.norm_font;
name = hl_get_font_name();
}
else
{
name = get_tv_string(&argvars[0]);
if (STRCMP(name, "*") == 0) /* don't use font dialog */
return;
font = gui_mch_get_font(name, FALSE);
if (font == NOFONT)
return; /* Invalid font name, return empty string. */
}
rettv->vval.v_string = gui_mch_get_fontname(font, name);
if (argvars[0].v_type != VAR_UNKNOWN)
gui_mch_free_font(font);
}
#endif
}
/*
* "getfperm({fname})" function
*/
static void
f_getfperm(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *fname;
struct stat st;
char_u *perm = NULL;
char_u flags[] = "rwx";
int i;
fname = get_tv_string(&argvars[0]);
rettv->v_type = VAR_STRING;
if (mch_stat((char *)fname, &st) >= 0)
{
perm = vim_strsave((char_u *)"---------");
if (perm != NULL)
{
for (i = 0; i < 9; i++)
{
if (st.st_mode & (1 << (8 - i)))
perm[i] = flags[i % 3];
}
}
}
rettv->vval.v_string = perm;
}
/*
* "getfsize({fname})" function
*/
static void
f_getfsize(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *fname;
struct stat st;
fname = get_tv_string(&argvars[0]);
rettv->v_type = VAR_NUMBER;
if (mch_stat((char *)fname, &st) >= 0)
{
if (mch_isdir(fname))
rettv->vval.v_number = 0;
else
{
rettv->vval.v_number = (varnumber_T)st.st_size;
/* non-perfect check for overflow */
if ((off_t)rettv->vval.v_number != (off_t)st.st_size)
rettv->vval.v_number = -2;
}
}
else
rettv->vval.v_number = -1;
}
/*
* "getftime({fname})" function
*/
static void
f_getftime(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *fname;
struct stat st;
fname = get_tv_string(&argvars[0]);
if (mch_stat((char *)fname, &st) >= 0)
rettv->vval.v_number = (varnumber_T)st.st_mtime;
else
rettv->vval.v_number = -1;
}
/*
* "getftype({fname})" function
*/
static void
f_getftype(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *fname;
struct stat st;
char_u *type = NULL;
char *t;
fname = get_tv_string(&argvars[0]);
rettv->v_type = VAR_STRING;
if (mch_lstat((char *)fname, &st) >= 0)
{
#ifdef S_ISREG
if (S_ISREG(st.st_mode))
t = "file";
else if (S_ISDIR(st.st_mode))
t = "dir";
# ifdef S_ISLNK
else if (S_ISLNK(st.st_mode))
t = "link";
# endif
# ifdef S_ISBLK
else if (S_ISBLK(st.st_mode))
t = "bdev";
# endif
# ifdef S_ISCHR
else if (S_ISCHR(st.st_mode))
t = "cdev";
# endif
# ifdef S_ISFIFO
else if (S_ISFIFO(st.st_mode))
t = "fifo";
# endif
# ifdef S_ISSOCK
else if (S_ISSOCK(st.st_mode))
t = "fifo";
# endif
else
t = "other";
#else
# ifdef S_IFMT
switch (st.st_mode & S_IFMT)
{
case S_IFREG: t = "file"; break;
case S_IFDIR: t = "dir"; break;
# ifdef S_IFLNK
case S_IFLNK: t = "link"; break;
# endif
# ifdef S_IFBLK
case S_IFBLK: t = "bdev"; break;
# endif
# ifdef S_IFCHR
case S_IFCHR: t = "cdev"; break;
# endif
# ifdef S_IFIFO
case S_IFIFO: t = "fifo"; break;
# endif
# ifdef S_IFSOCK
case S_IFSOCK: t = "socket"; break;
# endif
default: t = "other";
}
# else
if (mch_isdir(fname))
t = "dir";
else
t = "file";
# endif
#endif
type = vim_strsave((char_u *)t);
}
rettv->vval.v_string = type;
}
/*
* "getline(lnum, [end])" function
*/
static void
f_getline(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
linenr_T lnum;
linenr_T end;
int retlist;
lnum = get_tv_lnum(argvars);
if (argvars[1].v_type == VAR_UNKNOWN)
{
end = 0;
retlist = FALSE;
}
else
{
end = get_tv_lnum(&argvars[1]);
retlist = TRUE;
}
get_buffer_lines(curbuf, lnum, end, retlist, rettv);
}
/*
* "getmatches()" function
*/
static void
f_getmatches(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_SEARCH_EXTRA
dict_T *dict;
matchitem_T *cur = curwin->w_match_head;
int i;
if (rettv_list_alloc(rettv) == OK)
{
while (cur != NULL)
{
dict = dict_alloc();
if (dict == NULL)
return;
if (cur->match.regprog == NULL)
{
/* match added with matchaddpos() */
for (i = 0; i < MAXPOSMATCH; ++i)
{
llpos_T *llpos;
char buf[6];
list_T *l;
llpos = &cur->pos.pos[i];
if (llpos->lnum == 0)
break;
l = list_alloc();
if (l == NULL)
break;
list_append_number(l, (varnumber_T)llpos->lnum);
if (llpos->col > 0)
{
list_append_number(l, (varnumber_T)llpos->col);
list_append_number(l, (varnumber_T)llpos->len);
}
sprintf(buf, "pos%d", i + 1);
dict_add_list(dict, buf, l);
}
}
else
{
dict_add_nr_str(dict, "pattern", 0L, cur->pattern);
}
dict_add_nr_str(dict, "group", 0L, syn_id2name(cur->hlg_id));
dict_add_nr_str(dict, "priority", (long)cur->priority, NULL);
dict_add_nr_str(dict, "id", (long)cur->id, NULL);
# ifdef FEAT_CONCEAL
if (cur->conceal_char)
{
char_u buf[MB_MAXBYTES + 1];
buf[(*mb_char2bytes)((int)cur->conceal_char, buf)] = NUL;
dict_add_nr_str(dict, "conceal", 0L, (char_u *)&buf);
}
# endif
list_append_dict(rettv->vval.v_list, dict);
cur = cur->next;
}
}
#endif
}
/*
* "getpid()" function
*/
static void
f_getpid(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = mch_get_pid();
}
static void getpos_both __ARGS((typval_T *argvars, typval_T *rettv, int getcurpos));
/*
* "getcurpos()" function
*/
static void
f_getcurpos(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
getpos_both(argvars, rettv, TRUE);
}
/*
* "getpos(string)" function
*/
static void
f_getpos(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
getpos_both(argvars, rettv, FALSE);
}
static void
getpos_both(argvars, rettv, getcurpos)
typval_T *argvars;
typval_T *rettv;
int getcurpos;
{
pos_T *fp;
list_T *l;
int fnum = -1;
if (rettv_list_alloc(rettv) == OK)
{
l = rettv->vval.v_list;
if (getcurpos)
fp = &curwin->w_cursor;
else
fp = var2fpos(&argvars[0], TRUE, &fnum);
if (fnum != -1)
list_append_number(l, (varnumber_T)fnum);
else
list_append_number(l, (varnumber_T)0);
list_append_number(l, (fp != NULL) ? (varnumber_T)fp->lnum
: (varnumber_T)0);
list_append_number(l, (fp != NULL)
? (varnumber_T)(fp->col == MAXCOL ? MAXCOL : fp->col + 1)
: (varnumber_T)0);
list_append_number(l,
#ifdef FEAT_VIRTUALEDIT
(fp != NULL) ? (varnumber_T)fp->coladd :
#endif
(varnumber_T)0);
if (getcurpos)
list_append_number(l, curwin->w_curswant == MAXCOL ?
(varnumber_T)MAXCOL : (varnumber_T)curwin->w_curswant + 1);
}
else
rettv->vval.v_number = FALSE;
}
/*
* "getqflist()" and "getloclist()" functions
*/
static void
f_getqflist(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_QUICKFIX
win_T *wp;
#endif
#ifdef FEAT_QUICKFIX
if (rettv_list_alloc(rettv) == OK)
{
wp = NULL;
if (argvars[0].v_type != VAR_UNKNOWN) /* getloclist() */
{
wp = find_win_by_nr(&argvars[0], NULL);
if (wp == NULL)
return;
}
(void)get_errorlist(wp, rettv->vval.v_list);
}
#endif
}
/*
* "getreg()" function
*/
static void
f_getreg(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *strregname;
int regname;
int arg2 = FALSE;
int return_list = FALSE;
int error = FALSE;
if (argvars[0].v_type != VAR_UNKNOWN)
{
strregname = get_tv_string_chk(&argvars[0]);
error = strregname == NULL;
if (argvars[1].v_type != VAR_UNKNOWN)
{
arg2 = get_tv_number_chk(&argvars[1], &error);
if (!error && argvars[2].v_type != VAR_UNKNOWN)
return_list = get_tv_number_chk(&argvars[2], &error);
}
}
else
strregname = vimvars[VV_REG].vv_str;
if (error)
return;
regname = (strregname == NULL ? '"' : *strregname);
if (regname == 0)
regname = '"';
if (return_list)
{
rettv->v_type = VAR_LIST;
rettv->vval.v_list = (list_T *)get_reg_contents(regname,
(arg2 ? GREG_EXPR_SRC : 0) | GREG_LIST);
if (rettv->vval.v_list != NULL)
++rettv->vval.v_list->lv_refcount;
}
else
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = get_reg_contents(regname,
arg2 ? GREG_EXPR_SRC : 0);
}
}
/*
* "getregtype()" function
*/
static void
f_getregtype(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *strregname;
int regname;
char_u buf[NUMBUFLEN + 2];
long reglen = 0;
if (argvars[0].v_type != VAR_UNKNOWN)
{
strregname = get_tv_string_chk(&argvars[0]);
if (strregname == NULL) /* type error; errmsg already given */
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
return;
}
}
else
/* Default to v:register */
strregname = vimvars[VV_REG].vv_str;
regname = (strregname == NULL ? '"' : *strregname);
if (regname == 0)
regname = '"';
buf[0] = NUL;
buf[1] = NUL;
switch (get_reg_type(regname, &reglen))
{
case MLINE: buf[0] = 'V'; break;
case MCHAR: buf[0] = 'v'; break;
case MBLOCK:
buf[0] = Ctrl_V;
sprintf((char *)buf + 1, "%ld", reglen + 1);
break;
}
rettv->v_type = VAR_STRING;
rettv->vval.v_string = vim_strsave(buf);
}
/*
* "gettabvar()" function
*/
static void
f_gettabvar(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
win_T *oldcurwin;
tabpage_T *tp, *oldtabpage;
dictitem_T *v;
char_u *varname;
int done = FALSE;
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
varname = get_tv_string_chk(&argvars[1]);
tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL));
if (tp != NULL && varname != NULL)
{
/* Set tp to be our tabpage, temporarily. Also set the window to the
* first window in the tabpage, otherwise the window is not valid. */
if (switch_win(&oldcurwin, &oldtabpage,
tp->tp_firstwin == NULL ? firstwin : tp->tp_firstwin, tp, TRUE)
== OK)
{
/* look up the variable */
/* Let gettabvar({nr}, "") return the "t:" dictionary. */
v = find_var_in_ht(&tp->tp_vars->dv_hashtab, 't', varname, FALSE);
if (v != NULL)
{
copy_tv(&v->di_tv, rettv);
done = TRUE;
}
}
/* restore previous notion of curwin */
restore_win(oldcurwin, oldtabpage, TRUE);
}
if (!done && argvars[2].v_type != VAR_UNKNOWN)
copy_tv(&argvars[2], rettv);
}
/*
* "gettabwinvar()" function
*/
static void
f_gettabwinvar(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
getwinvar(argvars, rettv, 1);
}
/*
* "getwinposx()" function
*/
static void
f_getwinposx(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = -1;
#ifdef FEAT_GUI
if (gui.in_use)
{
int x, y;
if (gui_mch_get_winpos(&x, &y) == OK)
rettv->vval.v_number = x;
}
#endif
}
/*
* "getwinposy()" function
*/
static void
f_getwinposy(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = -1;
#ifdef FEAT_GUI
if (gui.in_use)
{
int x, y;
if (gui_mch_get_winpos(&x, &y) == OK)
rettv->vval.v_number = y;
}
#endif
}
/*
* Find window specified by "vp" in tabpage "tp".
*/
static win_T *
find_win_by_nr(vp, tp)
typval_T *vp;
tabpage_T *tp UNUSED; /* NULL for current tab page */
{
#ifdef FEAT_WINDOWS
win_T *wp;
#endif
int nr;
nr = get_tv_number_chk(vp, NULL);
#ifdef FEAT_WINDOWS
if (nr < 0)
return NULL;
if (nr == 0)
return curwin;
for (wp = (tp == NULL || tp == curtab) ? firstwin : tp->tp_firstwin;
wp != NULL; wp = wp->w_next)
if (--nr <= 0)
break;
return wp;
#else
if (nr == 0 || nr == 1)
return curwin;
return NULL;
#endif
}
/*
* Find window specified by "wvp" in tabpage "tvp".
*/
static win_T *
find_tabwin(wvp, tvp)
typval_T *wvp; /* VAR_UNKNOWN for current window */
typval_T *tvp; /* VAR_UNKNOWN for current tab page */
{
win_T *wp = NULL;
tabpage_T *tp = NULL;
long n;
if (wvp->v_type != VAR_UNKNOWN)
{
if (tvp->v_type != VAR_UNKNOWN)
{
n = get_tv_number(tvp);
if (n >= 0)
tp = find_tabpage(n);
}
else
tp = curtab;
if (tp != NULL)
wp = find_win_by_nr(wvp, tp);
}
else
wp = curwin;
return wp;
}
/*
* "getwinvar()" function
*/
static void
f_getwinvar(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
getwinvar(argvars, rettv, 0);
}
/*
* getwinvar() and gettabwinvar()
*/
static void
getwinvar(argvars, rettv, off)
typval_T *argvars;
typval_T *rettv;
int off; /* 1 for gettabwinvar() */
{
win_T *win;
char_u *varname;
dictitem_T *v;
tabpage_T *tp = NULL;
int done = FALSE;
#ifdef FEAT_WINDOWS
win_T *oldcurwin;
tabpage_T *oldtabpage;
int need_switch_win;
#endif
#ifdef FEAT_WINDOWS
if (off == 1)
tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL));
else
tp = curtab;
#endif
win = find_win_by_nr(&argvars[off], tp);
varname = get_tv_string_chk(&argvars[off + 1]);
++emsg_off;
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
if (win != NULL && varname != NULL)
{
#ifdef FEAT_WINDOWS
/* Set curwin to be our win, temporarily. Also set the tabpage,
* otherwise the window is not valid. Only do this when needed,
* autocommands get blocked. */
need_switch_win = !(tp == curtab && win == curwin);
if (!need_switch_win
|| switch_win(&oldcurwin, &oldtabpage, win, tp, TRUE) == OK)
#endif
{
if (*varname == '&') /* window-local-option */
{
if (get_option_tv(&varname, rettv, 1) == OK)
done = TRUE;
}
else
{
/* Look up the variable. */
/* Let getwinvar({nr}, "") return the "w:" dictionary. */
v = find_var_in_ht(&win->w_vars->dv_hashtab, 'w',
varname, FALSE);
if (v != NULL)
{
copy_tv(&v->di_tv, rettv);
done = TRUE;
}
}
}
#ifdef FEAT_WINDOWS
if (need_switch_win)
/* restore previous notion of curwin */
restore_win(oldcurwin, oldtabpage, TRUE);
#endif
}
if (!done && argvars[off + 2].v_type != VAR_UNKNOWN)
/* use the default return value */
copy_tv(&argvars[off + 2], rettv);
--emsg_off;
}
/*
* "glob()" function
*/
static void
f_glob(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int options = WILD_SILENT|WILD_USE_NL;
expand_T xpc;
int error = FALSE;
/* When the optional second argument is non-zero, don't remove matches
* for 'wildignore' and don't put matches for 'suffixes' at the end. */
rettv->v_type = VAR_STRING;
if (argvars[1].v_type != VAR_UNKNOWN)
{
if (get_tv_number_chk(&argvars[1], &error))
options |= WILD_KEEP_ALL;
if (argvars[2].v_type != VAR_UNKNOWN)
{
if (get_tv_number_chk(&argvars[2], &error))
{
rettv->v_type = VAR_LIST;
rettv->vval.v_list = NULL;
}
if (argvars[3].v_type != VAR_UNKNOWN
&& get_tv_number_chk(&argvars[3], &error))
options |= WILD_ALLLINKS;
}
}
if (!error)
{
ExpandInit(&xpc);
xpc.xp_context = EXPAND_FILES;
if (p_wic)
options += WILD_ICASE;
if (rettv->v_type == VAR_STRING)
rettv->vval.v_string = ExpandOne(&xpc, get_tv_string(&argvars[0]),
NULL, options, WILD_ALL);
else if (rettv_list_alloc(rettv) != FAIL)
{
int i;
ExpandOne(&xpc, get_tv_string(&argvars[0]),
NULL, options, WILD_ALL_KEEP);
for (i = 0; i < xpc.xp_numfiles; i++)
list_append_string(rettv->vval.v_list, xpc.xp_files[i], -1);
ExpandCleanup(&xpc);
}
}
else
rettv->vval.v_string = NULL;
}
/*
* "globpath()" function
*/
static void
f_globpath(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int flags = 0;
char_u buf1[NUMBUFLEN];
char_u *file = get_tv_string_buf_chk(&argvars[1], buf1);
int error = FALSE;
garray_T ga;
int i;
/* When the optional second argument is non-zero, don't remove matches
* for 'wildignore' and don't put matches for 'suffixes' at the end. */
rettv->v_type = VAR_STRING;
if (argvars[2].v_type != VAR_UNKNOWN)
{
if (get_tv_number_chk(&argvars[2], &error))
flags |= WILD_KEEP_ALL;
if (argvars[3].v_type != VAR_UNKNOWN)
{
if (get_tv_number_chk(&argvars[3], &error))
{
rettv->v_type = VAR_LIST;
rettv->vval.v_list = NULL;
}
if (argvars[4].v_type != VAR_UNKNOWN
&& get_tv_number_chk(&argvars[4], &error))
flags |= WILD_ALLLINKS;
}
}
if (file != NULL && !error)
{
ga_init2(&ga, (int)sizeof(char_u *), 10);
globpath(get_tv_string(&argvars[0]), file, &ga, flags);
if (rettv->v_type == VAR_STRING)
rettv->vval.v_string = ga_concat_strings(&ga, "\n");
else if (rettv_list_alloc(rettv) != FAIL)
for (i = 0; i < ga.ga_len; ++i)
list_append_string(rettv->vval.v_list,
((char_u **)(ga.ga_data))[i], -1);
ga_clear_strings(&ga);
}
else
rettv->vval.v_string = NULL;
}
/*
* "glob2regpat()" function
*/
static void
f_glob2regpat(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *pat = get_tv_string_chk(&argvars[0]);
rettv->v_type = VAR_STRING;
rettv->vval.v_string = file_pat_to_reg_pat(pat, NULL, NULL, FALSE);
}
/*
* "has()" function
*/
static void
f_has(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int i;
char_u *name;
int n = FALSE;
static char *(has_list[]) =
{
#ifdef AMIGA
"amiga",
# ifdef FEAT_ARP
"arp",
# endif
#endif
#ifdef __BEOS__
"beos",
#endif
#ifdef MSDOS
# ifdef DJGPP
"dos32",
# else
"dos16",
# endif
#endif
#ifdef MACOS
"mac",
#endif
#if defined(MACOS_X_UNIX)
"macunix",
#endif
#ifdef __QNX__
"qnx",
#endif
#ifdef UNIX
"unix",
#endif
#ifdef VMS
"vms",
#endif
#ifdef WIN16
"win16",
#endif
#ifdef WIN32
"win32",
#endif
#if defined(UNIX) && (defined(__CYGWIN32__) || defined(__CYGWIN__))
"win32unix",
#endif
#if defined(WIN64) || defined(_WIN64)
"win64",
#endif
#ifdef EBCDIC
"ebcdic",
#endif
#ifndef CASE_INSENSITIVE_FILENAME
"fname_case",
#endif
#ifdef HAVE_ACL
"acl",
#endif
#ifdef FEAT_ARABIC
"arabic",
#endif
#ifdef FEAT_AUTOCMD
"autocmd",
#endif
#ifdef FEAT_BEVAL
"balloon_eval",
# ifndef FEAT_GUI_W32 /* other GUIs always have multiline balloons */
"balloon_multiline",
# endif
#endif
#if defined(SOME_BUILTIN_TCAPS) || defined(ALL_BUILTIN_TCAPS)
"builtin_terms",
# ifdef ALL_BUILTIN_TCAPS
"all_builtin_terms",
# endif
#endif
#if defined(FEAT_BROWSE) && (defined(USE_FILE_CHOOSER) \
|| defined(FEAT_GUI_W32) \
|| defined(FEAT_GUI_MOTIF))
"browsefilter",
#endif
#ifdef FEAT_BYTEOFF
"byte_offset",
#endif
#ifdef FEAT_CINDENT
"cindent",
#endif
#ifdef FEAT_CLIENTSERVER
"clientserver",
#endif
#ifdef FEAT_CLIPBOARD
"clipboard",
#endif
#ifdef FEAT_CMDL_COMPL
"cmdline_compl",
#endif
#ifdef FEAT_CMDHIST
"cmdline_hist",
#endif
#ifdef FEAT_COMMENTS
"comments",
#endif
#ifdef FEAT_CONCEAL
"conceal",
#endif
#ifdef FEAT_CRYPT
"cryptv",
"crypt-blowfish",
"crypt-blowfish2",
#endif
#ifdef FEAT_CSCOPE
"cscope",
#endif
#ifdef FEAT_CURSORBIND
"cursorbind",
#endif
#ifdef CURSOR_SHAPE
"cursorshape",
#endif
#ifdef DEBUG
"debug",
#endif
#ifdef FEAT_CON_DIALOG
"dialog_con",
#endif
#ifdef FEAT_GUI_DIALOG
"dialog_gui",
#endif
#ifdef FEAT_DIFF
"diff",
#endif
#ifdef FEAT_DIGRAPHS
"digraphs",
#endif
#ifdef FEAT_DIRECTX
"directx",
#endif
#ifdef FEAT_DND
"dnd",
#endif
#ifdef FEAT_EMACS_TAGS
"emacs_tags",
#endif
"eval", /* always present, of course! */
#ifdef FEAT_EX_EXTRA
"ex_extra",
#endif
#ifdef FEAT_SEARCH_EXTRA
"extra_search",
#endif
#ifdef FEAT_FKMAP
"farsi",
#endif
#ifdef FEAT_SEARCHPATH
"file_in_path",
#endif
#ifdef FEAT_FILTERPIPE
"filterpipe",
#endif
#ifdef FEAT_FIND_ID
"find_in_path",
#endif
#ifdef FEAT_FLOAT
"float",
#endif
#ifdef FEAT_FOLDING
"folding",
#endif
#ifdef FEAT_FOOTER
"footer",
#endif
#if !defined(USE_SYSTEM) && defined(UNIX)
"fork",
#endif
#ifdef FEAT_GETTEXT
"gettext",
#endif
#ifdef FEAT_GUI
"gui",
#endif
#ifdef FEAT_GUI_ATHENA
# ifdef FEAT_GUI_NEXTAW
"gui_neXtaw",
# else
"gui_athena",
# endif
#endif
#ifdef FEAT_GUI_GTK
"gui_gtk",
"gui_gtk2",
#endif
#ifdef FEAT_GUI_GNOME
"gui_gnome",
#endif
#ifdef FEAT_GUI_MAC
"gui_mac",
#endif
#ifdef FEAT_GUI_MOTIF
"gui_motif",
#endif
#ifdef FEAT_GUI_PHOTON
"gui_photon",
#endif
#ifdef FEAT_GUI_W16
"gui_win16",
#endif
#ifdef FEAT_GUI_W32
"gui_win32",
#endif
#ifdef FEAT_HANGULIN
"hangul_input",
#endif
#if defined(HAVE_ICONV_H) && defined(USE_ICONV)
"iconv",
#endif
#ifdef FEAT_INS_EXPAND
"insert_expand",
#endif
#ifdef FEAT_JUMPLIST
"jumplist",
#endif
#ifdef FEAT_KEYMAP
"keymap",
#endif
#ifdef FEAT_LANGMAP
"langmap",
#endif
#ifdef FEAT_LIBCALL
"libcall",
#endif
#ifdef FEAT_LINEBREAK
"linebreak",
#endif
#ifdef FEAT_LISP
"lispindent",
#endif
#ifdef FEAT_LISTCMDS
"listcmds",
#endif
#ifdef FEAT_LOCALMAP
"localmap",
#endif
#ifdef FEAT_LUA
# ifndef DYNAMIC_LUA
"lua",
# endif
#endif
#ifdef FEAT_MENU
"menu",
#endif
#ifdef FEAT_SESSION
"mksession",
#endif
#ifdef FEAT_MODIFY_FNAME
"modify_fname",
#endif
#ifdef FEAT_MOUSE
"mouse",
#endif
#ifdef FEAT_MOUSESHAPE
"mouseshape",
#endif
#if defined(UNIX) || defined(VMS)
# ifdef FEAT_MOUSE_DEC
"mouse_dec",
# endif
# ifdef FEAT_MOUSE_GPM
"mouse_gpm",
# endif
# ifdef FEAT_MOUSE_JSB
"mouse_jsbterm",
# endif
# ifdef FEAT_MOUSE_NET
"mouse_netterm",
# endif
# ifdef FEAT_MOUSE_PTERM
"mouse_pterm",
# endif
# ifdef FEAT_MOUSE_SGR
"mouse_sgr",
# endif
# ifdef FEAT_SYSMOUSE
"mouse_sysmouse",
# endif
# ifdef FEAT_MOUSE_URXVT
"mouse_urxvt",
# endif
# ifdef FEAT_MOUSE_XTERM
"mouse_xterm",
# endif
#endif
#ifdef FEAT_MBYTE
"multi_byte",
#endif
#ifdef FEAT_MBYTE_IME
"multi_byte_ime",
#endif
#ifdef FEAT_MULTI_LANG
"multi_lang",
#endif
#ifdef FEAT_MZSCHEME
#ifndef DYNAMIC_MZSCHEME
"mzscheme",
#endif
#endif
#ifdef FEAT_OLE
"ole",
#endif
#ifdef FEAT_PATH_EXTRA
"path_extra",
#endif
#ifdef FEAT_PERL
#ifndef DYNAMIC_PERL
"perl",
#endif
#endif
#ifdef FEAT_PERSISTENT_UNDO
"persistent_undo",
#endif
#ifdef FEAT_PYTHON
#ifndef DYNAMIC_PYTHON
"python",
#endif
#endif
#ifdef FEAT_PYTHON3
#ifndef DYNAMIC_PYTHON3
"python3",
#endif
#endif
#ifdef FEAT_POSTSCRIPT
"postscript",
#endif
#ifdef FEAT_PRINTER
"printer",
#endif
#ifdef FEAT_PROFILE
"profile",
#endif
#ifdef FEAT_RELTIME
"reltime",
#endif
#ifdef FEAT_QUICKFIX
"quickfix",
#endif
#ifdef FEAT_RIGHTLEFT
"rightleft",
#endif
#if defined(FEAT_RUBY) && !defined(DYNAMIC_RUBY)
"ruby",
#endif
#ifdef FEAT_SCROLLBIND
"scrollbind",
#endif
#ifdef FEAT_CMDL_INFO
"showcmd",
"cmdline_info",
#endif
#ifdef FEAT_SIGNS
"signs",
#endif
#ifdef FEAT_SMARTINDENT
"smartindent",
#endif
#ifdef FEAT_SNIFF
"sniff",
#endif
#ifdef STARTUPTIME
"startuptime",
#endif
#ifdef FEAT_STL_OPT
"statusline",
#endif
#ifdef FEAT_SUN_WORKSHOP
"sun_workshop",
#endif
#ifdef FEAT_NETBEANS_INTG
"netbeans_intg",
#endif
#ifdef FEAT_SPELL
"spell",
#endif
#ifdef FEAT_SYN_HL
"syntax",
#endif
#if defined(USE_SYSTEM) || !defined(UNIX)
"system",
#endif
#ifdef FEAT_TAG_BINS
"tag_binary",
#endif
#ifdef FEAT_TAG_OLDSTATIC
"tag_old_static",
#endif
#ifdef FEAT_TAG_ANYWHITE
"tag_any_white",
#endif
#ifdef FEAT_TCL
# ifndef DYNAMIC_TCL
"tcl",
# endif
#endif
#ifdef TERMINFO
"terminfo",
#endif
#ifdef FEAT_TERMRESPONSE
"termresponse",
#endif
#ifdef FEAT_TEXTOBJ
"textobjects",
#endif
#ifdef HAVE_TGETENT
"tgetent",
#endif
#ifdef FEAT_TITLE
"title",
#endif
#ifdef FEAT_TOOLBAR
"toolbar",
#endif
#if defined(FEAT_CLIPBOARD) && defined(FEAT_X11)
"unnamedplus",
#endif
#ifdef FEAT_USR_CMDS
"user-commands", /* was accidentally included in 5.4 */
"user_commands",
#endif
#ifdef FEAT_VIMINFO
"viminfo",
#endif
#ifdef FEAT_VERTSPLIT
"vertsplit",
#endif
#ifdef FEAT_VIRTUALEDIT
"virtualedit",
#endif
"visual",
#ifdef FEAT_VISUALEXTRA
"visualextra",
#endif
#ifdef FEAT_VREPLACE
"vreplace",
#endif
#ifdef FEAT_WILDIGN
"wildignore",
#endif
#ifdef FEAT_WILDMENU
"wildmenu",
#endif
#ifdef FEAT_WINDOWS
"windows",
#endif
#ifdef FEAT_WAK
"winaltkeys",
#endif
#ifdef FEAT_WRITEBACKUP
"writebackup",
#endif
#ifdef FEAT_XIM
"xim",
#endif
#ifdef FEAT_XFONTSET
"xfontset",
#endif
#ifdef FEAT_XPM_W32
"xpm",
"xpm_w32", /* for backward compatibility */
#else
# if defined(HAVE_XPM)
"xpm",
# endif
#endif
#ifdef USE_XSMP
"xsmp",
#endif
#ifdef USE_XSMP_INTERACT
"xsmp_interact",
#endif
#ifdef FEAT_XCLIPBOARD
"xterm_clipboard",
#endif
#ifdef FEAT_XTERM_SAVE
"xterm_save",
#endif
#if defined(UNIX) && defined(FEAT_X11)
"X11",
#endif
NULL
};
name = get_tv_string(&argvars[0]);
for (i = 0; has_list[i] != NULL; ++i)
if (STRICMP(name, has_list[i]) == 0)
{
n = TRUE;
break;
}
if (n == FALSE)
{
if (STRNICMP(name, "patch", 5) == 0)
{
if (name[5] == '-'
&& STRLEN(name) > 11
&& vim_isdigit(name[6])
&& vim_isdigit(name[8])
&& vim_isdigit(name[10]))
{
int major = atoi((char *)name + 6);
int minor = atoi((char *)name + 8);
/* Expect "patch-9.9.01234". */
n = (major < VIM_VERSION_MAJOR
|| (major == VIM_VERSION_MAJOR
&& (minor < VIM_VERSION_MINOR
|| (minor == VIM_VERSION_MINOR
&& has_patch(atoi((char *)name + 10))))));
}
else
n = has_patch(atoi((char *)name + 5));
}
else if (STRICMP(name, "vim_starting") == 0)
n = (starting != 0);
#ifdef FEAT_MBYTE
else if (STRICMP(name, "multi_byte_encoding") == 0)
n = has_mbyte;
#endif
#if defined(FEAT_BEVAL) && defined(FEAT_GUI_W32)
else if (STRICMP(name, "balloon_multiline") == 0)
n = multiline_balloon_available();
#endif
#ifdef DYNAMIC_TCL
else if (STRICMP(name, "tcl") == 0)
n = tcl_enabled(FALSE);
#endif
#if defined(USE_ICONV) && defined(DYNAMIC_ICONV)
else if (STRICMP(name, "iconv") == 0)
n = iconv_enabled(FALSE);
#endif
#ifdef DYNAMIC_LUA
else if (STRICMP(name, "lua") == 0)
n = lua_enabled(FALSE);
#endif
#ifdef DYNAMIC_MZSCHEME
else if (STRICMP(name, "mzscheme") == 0)
n = mzscheme_enabled(FALSE);
#endif
#ifdef DYNAMIC_RUBY
else if (STRICMP(name, "ruby") == 0)
n = ruby_enabled(FALSE);
#endif
#ifdef FEAT_PYTHON
#ifdef DYNAMIC_PYTHON
else if (STRICMP(name, "python") == 0)
n = python_enabled(FALSE);
#endif
#endif
#ifdef FEAT_PYTHON3
#ifdef DYNAMIC_PYTHON3
else if (STRICMP(name, "python3") == 0)
n = python3_enabled(FALSE);
#endif
#endif
#ifdef DYNAMIC_PERL
else if (STRICMP(name, "perl") == 0)
n = perl_enabled(FALSE);
#endif
#ifdef FEAT_GUI
else if (STRICMP(name, "gui_running") == 0)
n = (gui.in_use || gui.starting);
# ifdef FEAT_GUI_W32
else if (STRICMP(name, "gui_win32s") == 0)
n = gui_is_win32s();
# endif
# ifdef FEAT_BROWSE
else if (STRICMP(name, "browse") == 0)
n = gui.in_use; /* gui_mch_browse() works when GUI is running */
# endif
#endif
#ifdef FEAT_SYN_HL
else if (STRICMP(name, "syntax_items") == 0)
n = syntax_present(curwin);
#endif
#if defined(WIN3264)
else if (STRICMP(name, "win95") == 0)
n = mch_windows95();
#endif
#ifdef FEAT_NETBEANS_INTG
else if (STRICMP(name, "netbeans_enabled") == 0)
n = netbeans_active();
#endif
}
rettv->vval.v_number = n;
}
/*
* "has_key()" function
*/
static void
f_has_key(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
if (argvars[0].v_type != VAR_DICT)
{
EMSG(_(e_dictreq));
return;
}
if (argvars[0].vval.v_dict == NULL)
return;
rettv->vval.v_number = dict_find(argvars[0].vval.v_dict,
get_tv_string(&argvars[1]), -1) != NULL;
}
/*
* "haslocaldir()" function
*/
static void
f_haslocaldir(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
win_T *wp = NULL;
wp = find_tabwin(&argvars[0], &argvars[1]);
rettv->vval.v_number = (wp != NULL && wp->w_localdir != NULL);
}
/*
* "hasmapto()" function
*/
static void
f_hasmapto(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *name;
char_u *mode;
char_u buf[NUMBUFLEN];
int abbr = FALSE;
name = get_tv_string(&argvars[0]);
if (argvars[1].v_type == VAR_UNKNOWN)
mode = (char_u *)"nvo";
else
{
mode = get_tv_string_buf(&argvars[1], buf);
if (argvars[2].v_type != VAR_UNKNOWN)
abbr = get_tv_number(&argvars[2]);
}
if (map_to_exists(name, mode, abbr))
rettv->vval.v_number = TRUE;
else
rettv->vval.v_number = FALSE;
}
/*
* "histadd()" function
*/
static void
f_histadd(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_CMDHIST
int histype;
char_u *str;
char_u buf[NUMBUFLEN];
#endif
rettv->vval.v_number = FALSE;
if (check_restricted() || check_secure())
return;
#ifdef FEAT_CMDHIST
str = get_tv_string_chk(&argvars[0]); /* NULL on type error */
histype = str != NULL ? get_histtype(str) : -1;
if (histype >= 0)
{
str = get_tv_string_buf(&argvars[1], buf);
if (*str != NUL)
{
init_history();
add_to_history(histype, str, FALSE, NUL);
rettv->vval.v_number = TRUE;
return;
}
}
#endif
}
/*
* "histdel()" function
*/
static void
f_histdel(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_CMDHIST
int n;
char_u buf[NUMBUFLEN];
char_u *str;
str = get_tv_string_chk(&argvars[0]); /* NULL on type error */
if (str == NULL)
n = 0;
else if (argvars[1].v_type == VAR_UNKNOWN)
/* only one argument: clear entire history */
n = clr_history(get_histtype(str));
else if (argvars[1].v_type == VAR_NUMBER)
/* index given: remove that entry */
n = del_history_idx(get_histtype(str),
(int)get_tv_number(&argvars[1]));
else
/* string given: remove all matching entries */
n = del_history_entry(get_histtype(str),
get_tv_string_buf(&argvars[1], buf));
rettv->vval.v_number = n;
#endif
}
/*
* "histget()" function
*/
static void
f_histget(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_CMDHIST
int type;
int idx;
char_u *str;
str = get_tv_string_chk(&argvars[0]); /* NULL on type error */
if (str == NULL)
rettv->vval.v_string = NULL;
else
{
type = get_histtype(str);
if (argvars[1].v_type == VAR_UNKNOWN)
idx = get_history_idx(type);
else
idx = (int)get_tv_number_chk(&argvars[1], NULL);
/* -1 on type error */
rettv->vval.v_string = vim_strsave(get_history_entry(type, idx));
}
#else
rettv->vval.v_string = NULL;
#endif
rettv->v_type = VAR_STRING;
}
/*
* "histnr()" function
*/
static void
f_histnr(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
int i;
#ifdef FEAT_CMDHIST
char_u *history = get_tv_string_chk(&argvars[0]);
i = history == NULL ? HIST_CMD - 1 : get_histtype(history);
if (i >= HIST_CMD && i < HIST_COUNT)
i = get_history_idx(i);
else
#endif
i = -1;
rettv->vval.v_number = i;
}
/*
* "highlightID(name)" function
*/
static void
f_hlID(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_number = syn_name2id(get_tv_string(&argvars[0]));
}
/*
* "highlight_exists()" function
*/
static void
f_hlexists(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_number = highlight_exists(get_tv_string(&argvars[0]));
}
/*
* "hostname()" function
*/
static void
f_hostname(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
char_u hostname[256];
mch_get_host_name(hostname, 256);
rettv->v_type = VAR_STRING;
rettv->vval.v_string = vim_strsave(hostname);
}
/*
* iconv() function
*/
static void
f_iconv(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_MBYTE
char_u buf1[NUMBUFLEN];
char_u buf2[NUMBUFLEN];
char_u *from, *to, *str;
vimconv_T vimconv;
#endif
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
#ifdef FEAT_MBYTE
str = get_tv_string(&argvars[0]);
from = enc_canonize(enc_skip(get_tv_string_buf(&argvars[1], buf1)));
to = enc_canonize(enc_skip(get_tv_string_buf(&argvars[2], buf2)));
vimconv.vc_type = CONV_NONE;
convert_setup(&vimconv, from, to);
/* If the encodings are equal, no conversion needed. */
if (vimconv.vc_type == CONV_NONE)
rettv->vval.v_string = vim_strsave(str);
else
rettv->vval.v_string = string_convert(&vimconv, str, NULL);
convert_setup(&vimconv, NULL, NULL);
vim_free(from);
vim_free(to);
#endif
}
/*
* "indent()" function
*/
static void
f_indent(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
linenr_T lnum;
lnum = get_tv_lnum(argvars);
if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count)
rettv->vval.v_number = get_indent_lnum(lnum);
else
rettv->vval.v_number = -1;
}
/*
* "index()" function
*/
static void
f_index(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
list_T *l;
listitem_T *item;
long idx = 0;
int ic = FALSE;
rettv->vval.v_number = -1;
if (argvars[0].v_type != VAR_LIST)
{
EMSG(_(e_listreq));
return;
}
l = argvars[0].vval.v_list;
if (l != NULL)
{
item = l->lv_first;
if (argvars[2].v_type != VAR_UNKNOWN)
{
int error = FALSE;
/* Start at specified item. Use the cached index that list_find()
* sets, so that a negative number also works. */
item = list_find(l, get_tv_number_chk(&argvars[2], &error));
idx = l->lv_idx;
if (argvars[3].v_type != VAR_UNKNOWN)
ic = get_tv_number_chk(&argvars[3], &error);
if (error)
item = NULL;
}
for ( ; item != NULL; item = item->li_next, ++idx)
if (tv_equal(&item->li_tv, &argvars[1], ic, FALSE))
{
rettv->vval.v_number = idx;
break;
}
}
}
static int inputsecret_flag = 0;
static void get_user_input __ARGS((typval_T *argvars, typval_T *rettv, int inputdialog));
/*
* This function is used by f_input() and f_inputdialog() functions. The third
* argument to f_input() specifies the type of completion to use at the
* prompt. The third argument to f_inputdialog() specifies the value to return
* when the user cancels the prompt.
*/
static void
get_user_input(argvars, rettv, inputdialog)
typval_T *argvars;
typval_T *rettv;
int inputdialog;
{
char_u *prompt = get_tv_string_chk(&argvars[0]);
char_u *p = NULL;
int c;
char_u buf[NUMBUFLEN];
int cmd_silent_save = cmd_silent;
char_u *defstr = (char_u *)"";
int xp_type = EXPAND_NOTHING;
char_u *xp_arg = NULL;
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
#ifdef NO_CONSOLE_INPUT
/* While starting up, there is no place to enter text. */
if (no_console_input())
return;
#endif
cmd_silent = FALSE; /* Want to see the prompt. */
if (prompt != NULL)
{
/* Only the part of the message after the last NL is considered as
* prompt for the command line */
p = vim_strrchr(prompt, '\n');
if (p == NULL)
p = prompt;
else
{
++p;
c = *p;
*p = NUL;
msg_start();
msg_clr_eos();
msg_puts_attr(prompt, echo_attr);
msg_didout = FALSE;
msg_starthere();
*p = c;
}
cmdline_row = msg_row;
if (argvars[1].v_type != VAR_UNKNOWN)
{
defstr = get_tv_string_buf_chk(&argvars[1], buf);
if (defstr != NULL)
stuffReadbuffSpec(defstr);
if (!inputdialog && argvars[2].v_type != VAR_UNKNOWN)
{
char_u *xp_name;
int xp_namelen;
long argt;
/* input() with a third argument: completion */
rettv->vval.v_string = NULL;
xp_name = get_tv_string_buf_chk(&argvars[2], buf);
if (xp_name == NULL)
return;
xp_namelen = (int)STRLEN(xp_name);
if (parse_compl_arg(xp_name, xp_namelen, &xp_type, &argt,
&xp_arg) == FAIL)
return;
}
}
if (defstr != NULL)
{
# ifdef FEAT_EX_EXTRA
int save_ex_normal_busy = ex_normal_busy;
ex_normal_busy = 0;
# endif
rettv->vval.v_string =
getcmdline_prompt(inputsecret_flag ? NUL : '@', p, echo_attr,
xp_type, xp_arg);
# ifdef FEAT_EX_EXTRA
ex_normal_busy = save_ex_normal_busy;
# endif
}
if (inputdialog && rettv->vval.v_string == NULL
&& argvars[1].v_type != VAR_UNKNOWN
&& argvars[2].v_type != VAR_UNKNOWN)
rettv->vval.v_string = vim_strsave(get_tv_string_buf(
&argvars[2], buf));
vim_free(xp_arg);
/* since the user typed this, no need to wait for return */
need_wait_return = FALSE;
msg_didout = FALSE;
}
cmd_silent = cmd_silent_save;
}
/*
* "input()" function
* Also handles inputsecret() when inputsecret is set.
*/
static void
f_input(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
get_user_input(argvars, rettv, FALSE);
}
/*
* "inputdialog()" function
*/
static void
f_inputdialog(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
#if defined(FEAT_GUI_TEXTDIALOG)
/* Use a GUI dialog if the GUI is running and 'c' is not in 'guioptions' */
if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL)
{
char_u *message;
char_u buf[NUMBUFLEN];
char_u *defstr = (char_u *)"";
message = get_tv_string_chk(&argvars[0]);
if (argvars[1].v_type != VAR_UNKNOWN
&& (defstr = get_tv_string_buf_chk(&argvars[1], buf)) != NULL)
vim_strncpy(IObuff, defstr, IOSIZE - 1);
else
IObuff[0] = NUL;
if (message != NULL && defstr != NULL
&& do_dialog(VIM_QUESTION, NULL, message,
(char_u *)_("&OK\n&Cancel"), 1, IObuff, FALSE) == 1)
rettv->vval.v_string = vim_strsave(IObuff);
else
{
if (message != NULL && defstr != NULL
&& argvars[1].v_type != VAR_UNKNOWN
&& argvars[2].v_type != VAR_UNKNOWN)
rettv->vval.v_string = vim_strsave(
get_tv_string_buf(&argvars[2], buf));
else
rettv->vval.v_string = NULL;
}
rettv->v_type = VAR_STRING;
}
else
#endif
get_user_input(argvars, rettv, TRUE);
}
/*
* "inputlist()" function
*/
static void
f_inputlist(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
listitem_T *li;
int selected;
int mouse_used;
#ifdef NO_CONSOLE_INPUT
/* While starting up, there is no place to enter text. */
if (no_console_input())
return;
#endif
if (argvars[0].v_type != VAR_LIST || argvars[0].vval.v_list == NULL)
{
EMSG2(_(e_listarg), "inputlist()");
return;
}
msg_start();
msg_row = Rows - 1; /* for when 'cmdheight' > 1 */
lines_left = Rows; /* avoid more prompt */
msg_scroll = TRUE;
msg_clr_eos();
for (li = argvars[0].vval.v_list->lv_first; li != NULL; li = li->li_next)
{
msg_puts(get_tv_string(&li->li_tv));
msg_putchar('\n');
}
/* Ask for choice. */
selected = prompt_for_number(&mouse_used);
if (mouse_used)
selected -= lines_left;
rettv->vval.v_number = selected;
}
static garray_T ga_userinput = {0, 0, sizeof(tasave_T), 4, NULL};
/*
* "inputrestore()" function
*/
static void
f_inputrestore(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
if (ga_userinput.ga_len > 0)
{
--ga_userinput.ga_len;
restore_typeahead((tasave_T *)(ga_userinput.ga_data)
+ ga_userinput.ga_len);
/* default return is zero == OK */
}
else if (p_verbose > 1)
{
verb_msg((char_u *)_("called inputrestore() more often than inputsave()"));
rettv->vval.v_number = 1; /* Failed */
}
}
/*
* "inputsave()" function
*/
static void
f_inputsave(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
/* Add an entry to the stack of typeahead storage. */
if (ga_grow(&ga_userinput, 1) == OK)
{
save_typeahead((tasave_T *)(ga_userinput.ga_data)
+ ga_userinput.ga_len);
++ga_userinput.ga_len;
/* default return is zero == OK */
}
else
rettv->vval.v_number = 1; /* Failed */
}
/*
* "inputsecret()" function
*/
static void
f_inputsecret(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
++cmdline_star;
++inputsecret_flag;
f_input(argvars, rettv);
--cmdline_star;
--inputsecret_flag;
}
/*
* "insert()" function
*/
static void
f_insert(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
long before = 0;
listitem_T *item;
list_T *l;
int error = FALSE;
if (argvars[0].v_type != VAR_LIST)
EMSG2(_(e_listarg), "insert()");
else if ((l = argvars[0].vval.v_list) != NULL
&& !tv_check_lock(l->lv_lock, (char_u *)N_("insert() argument"), TRUE))
{
if (argvars[2].v_type != VAR_UNKNOWN)
before = get_tv_number_chk(&argvars[2], &error);
if (error)
return; /* type error; errmsg already given */
if (before == l->lv_len)
item = NULL;
else
{
item = list_find(l, before);
if (item == NULL)
{
EMSGN(_(e_listidx), before);
l = NULL;
}
}
if (l != NULL)
{
list_insert_tv(l, &argvars[1], item);
copy_tv(&argvars[0], rettv);
}
}
}
/*
* "invert(expr)" function
*/
static void
f_invert(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_number = ~get_tv_number_chk(&argvars[0], NULL);
}
/*
* "isdirectory()" function
*/
static void
f_isdirectory(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_number = mch_isdir(get_tv_string(&argvars[0]));
}
/*
* "islocked()" function
*/
static void
f_islocked(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
lval_T lv;
char_u *end;
dictitem_T *di;
rettv->vval.v_number = -1;
end = get_lval(get_tv_string(&argvars[0]), NULL, &lv, FALSE, FALSE,
GLV_NO_AUTOLOAD, FNE_CHECK_START);
if (end != NULL && lv.ll_name != NULL)
{
if (*end != NUL)
EMSG(_(e_trailing));
else
{
if (lv.ll_tv == NULL)
{
if (check_changedtick(lv.ll_name))
rettv->vval.v_number = 1; /* always locked */
else
{
di = find_var(lv.ll_name, NULL, TRUE);
if (di != NULL)
{
/* Consider a variable locked when:
* 1. the variable itself is locked
* 2. the value of the variable is locked.
* 3. the List or Dict value is locked.
*/
rettv->vval.v_number = ((di->di_flags & DI_FLAGS_LOCK)
|| tv_islocked(&di->di_tv));
}
}
}
else if (lv.ll_range)
EMSG(_("E786: Range not allowed"));
else if (lv.ll_newkey != NULL)
EMSG2(_(e_dictkey), lv.ll_newkey);
else if (lv.ll_list != NULL)
/* List item. */
rettv->vval.v_number = tv_islocked(&lv.ll_li->li_tv);
else
/* Dictionary item. */
rettv->vval.v_number = tv_islocked(&lv.ll_di->di_tv);
}
}
clear_lval(&lv);
}
static void dict_list __ARGS((typval_T *argvars, typval_T *rettv, int what));
/*
* Turn a dict into a list:
* "what" == 0: list of keys
* "what" == 1: list of values
* "what" == 2: list of items
*/
static void
dict_list(argvars, rettv, what)
typval_T *argvars;
typval_T *rettv;
int what;
{
list_T *l2;
dictitem_T *di;
hashitem_T *hi;
listitem_T *li;
listitem_T *li2;
dict_T *d;
int todo;
if (argvars[0].v_type != VAR_DICT)
{
EMSG(_(e_dictreq));
return;
}
if ((d = argvars[0].vval.v_dict) == NULL)
return;
if (rettv_list_alloc(rettv) == FAIL)
return;
todo = (int)d->dv_hashtab.ht_used;
for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
di = HI2DI(hi);
li = listitem_alloc();
if (li == NULL)
break;
list_append(rettv->vval.v_list, li);
if (what == 0)
{
/* keys() */
li->li_tv.v_type = VAR_STRING;
li->li_tv.v_lock = 0;
li->li_tv.vval.v_string = vim_strsave(di->di_key);
}
else if (what == 1)
{
/* values() */
copy_tv(&di->di_tv, &li->li_tv);
}
else
{
/* items() */
l2 = list_alloc();
li->li_tv.v_type = VAR_LIST;
li->li_tv.v_lock = 0;
li->li_tv.vval.v_list = l2;
if (l2 == NULL)
break;
++l2->lv_refcount;
li2 = listitem_alloc();
if (li2 == NULL)
break;
list_append(l2, li2);
li2->li_tv.v_type = VAR_STRING;
li2->li_tv.v_lock = 0;
li2->li_tv.vval.v_string = vim_strsave(di->di_key);
li2 = listitem_alloc();
if (li2 == NULL)
break;
list_append(l2, li2);
copy_tv(&di->di_tv, &li2->li_tv);
}
}
}
}
/*
* "items(dict)" function
*/
static void
f_items(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
dict_list(argvars, rettv, 2);
}
/*
* "join()" function
*/
static void
f_join(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
garray_T ga;
char_u *sep;
if (argvars[0].v_type != VAR_LIST)
{
EMSG(_(e_listreq));
return;
}
if (argvars[0].vval.v_list == NULL)
return;
if (argvars[1].v_type == VAR_UNKNOWN)
sep = (char_u *)" ";
else
sep = get_tv_string_chk(&argvars[1]);
rettv->v_type = VAR_STRING;
if (sep != NULL)
{
ga_init2(&ga, (int)sizeof(char), 80);
list_join(&ga, argvars[0].vval.v_list, sep, TRUE, 0);
ga_append(&ga, NUL);
rettv->vval.v_string = (char_u *)ga.ga_data;
}
else
rettv->vval.v_string = NULL;
}
/*
* "keys()" function
*/
static void
f_keys(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
dict_list(argvars, rettv, 0);
}
/*
* "last_buffer_nr()" function.
*/
static void
f_last_buffer_nr(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
int n = 0;
buf_T *buf;
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
if (n < buf->b_fnum)
n = buf->b_fnum;
rettv->vval.v_number = n;
}
/*
* "len()" function
*/
static void
f_len(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
switch (argvars[0].v_type)
{
case VAR_STRING:
case VAR_NUMBER:
rettv->vval.v_number = (varnumber_T)STRLEN(
get_tv_string(&argvars[0]));
break;
case VAR_LIST:
rettv->vval.v_number = list_len(argvars[0].vval.v_list);
break;
case VAR_DICT:
rettv->vval.v_number = dict_len(argvars[0].vval.v_dict);
break;
default:
EMSG(_("E701: Invalid type for len()"));
break;
}
}
static void libcall_common __ARGS((typval_T *argvars, typval_T *rettv, int type));
static void
libcall_common(argvars, rettv, type)
typval_T *argvars;
typval_T *rettv;
int type;
{
#ifdef FEAT_LIBCALL
char_u *string_in;
char_u **string_result;
int nr_result;
#endif
rettv->v_type = type;
if (type != VAR_NUMBER)
rettv->vval.v_string = NULL;
if (check_restricted() || check_secure())
return;
#ifdef FEAT_LIBCALL
/* The first two args must be strings, otherwise its meaningless */
if (argvars[0].v_type == VAR_STRING && argvars[1].v_type == VAR_STRING)
{
string_in = NULL;
if (argvars[2].v_type == VAR_STRING)
string_in = argvars[2].vval.v_string;
if (type == VAR_NUMBER)
string_result = NULL;
else
string_result = &rettv->vval.v_string;
if (mch_libcall(argvars[0].vval.v_string,
argvars[1].vval.v_string,
string_in,
argvars[2].vval.v_number,
string_result,
&nr_result) == OK
&& type == VAR_NUMBER)
rettv->vval.v_number = nr_result;
}
#endif
}
/*
* "libcall()" function
*/
static void
f_libcall(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
libcall_common(argvars, rettv, VAR_STRING);
}
/*
* "libcallnr()" function
*/
static void
f_libcallnr(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
libcall_common(argvars, rettv, VAR_NUMBER);
}
/*
* "line(string)" function
*/
static void
f_line(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
linenr_T lnum = 0;
pos_T *fp;
int fnum;
fp = var2fpos(&argvars[0], TRUE, &fnum);
if (fp != NULL)
lnum = fp->lnum;
rettv->vval.v_number = lnum;
}
/*
* "line2byte(lnum)" function
*/
static void
f_line2byte(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifndef FEAT_BYTEOFF
rettv->vval.v_number = -1;
#else
linenr_T lnum;
lnum = get_tv_lnum(argvars);
if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count + 1)
rettv->vval.v_number = -1;
else
rettv->vval.v_number = ml_find_line_or_offset(curbuf, lnum, NULL);
if (rettv->vval.v_number >= 0)
++rettv->vval.v_number;
#endif
}
/*
* "lispindent(lnum)" function
*/
static void
f_lispindent(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_LISP
pos_T pos;
linenr_T lnum;
pos = curwin->w_cursor;
lnum = get_tv_lnum(argvars);
if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count)
{
curwin->w_cursor.lnum = lnum;
rettv->vval.v_number = get_lisp_indent();
curwin->w_cursor = pos;
}
else
#endif
rettv->vval.v_number = -1;
}
/*
* "localtime()" function
*/
static void
f_localtime(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = (varnumber_T)time(NULL);
}
static void get_maparg __ARGS((typval_T *argvars, typval_T *rettv, int exact));
static void
get_maparg(argvars, rettv, exact)
typval_T *argvars;
typval_T *rettv;
int exact;
{
char_u *keys;
char_u *which;
char_u buf[NUMBUFLEN];
char_u *keys_buf = NULL;
char_u *rhs;
int mode;
int abbr = FALSE;
int get_dict = FALSE;
mapblock_T *mp;
int buffer_local;
/* return empty string for failure */
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
keys = get_tv_string(&argvars[0]);
if (*keys == NUL)
return;
if (argvars[1].v_type != VAR_UNKNOWN)
{
which = get_tv_string_buf_chk(&argvars[1], buf);
if (argvars[2].v_type != VAR_UNKNOWN)
{
abbr = get_tv_number(&argvars[2]);
if (argvars[3].v_type != VAR_UNKNOWN)
get_dict = get_tv_number(&argvars[3]);
}
}
else
which = (char_u *)"";
if (which == NULL)
return;
mode = get_map_mode(&which, 0);
keys = replace_termcodes(keys, &keys_buf, TRUE, TRUE, FALSE);
rhs = check_map(keys, mode, exact, FALSE, abbr, &mp, &buffer_local);
vim_free(keys_buf);
if (!get_dict)
{
/* Return a string. */
if (rhs != NULL)
rettv->vval.v_string = str2special_save(rhs, FALSE);
}
else if (rettv_dict_alloc(rettv) != FAIL && rhs != NULL)
{
/* Return a dictionary. */
char_u *lhs = str2special_save(mp->m_keys, TRUE);
char_u *mapmode = map_mode_to_chars(mp->m_mode);
dict_T *dict = rettv->vval.v_dict;
dict_add_nr_str(dict, "lhs", 0L, lhs);
dict_add_nr_str(dict, "rhs", 0L, mp->m_orig_str);
dict_add_nr_str(dict, "noremap", mp->m_noremap ? 1L : 0L , NULL);
dict_add_nr_str(dict, "expr", mp->m_expr ? 1L : 0L, NULL);
dict_add_nr_str(dict, "silent", mp->m_silent ? 1L : 0L, NULL);
dict_add_nr_str(dict, "sid", (long)mp->m_script_ID, NULL);
dict_add_nr_str(dict, "buffer", (long)buffer_local, NULL);
dict_add_nr_str(dict, "nowait", mp->m_nowait ? 1L : 0L, NULL);
dict_add_nr_str(dict, "mode", 0L, mapmode);
vim_free(lhs);
vim_free(mapmode);
}
}
#ifdef FEAT_FLOAT
/*
* "log()" function
*/
static void
f_log(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = log(f);
else
rettv->vval.v_float = 0.0;
}
/*
* "log10()" function
*/
static void
f_log10(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = log10(f);
else
rettv->vval.v_float = 0.0;
}
#endif
#ifdef FEAT_LUA
/*
* "luaeval()" function
*/
static void
f_luaeval(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *str;
char_u buf[NUMBUFLEN];
str = get_tv_string_buf(&argvars[0], buf);
do_luaeval(str, argvars + 1, rettv);
}
#endif
/*
* "map()" function
*/
static void
f_map(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
filter_map(argvars, rettv, TRUE);
}
/*
* "maparg()" function
*/
static void
f_maparg(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
get_maparg(argvars, rettv, TRUE);
}
/*
* "mapcheck()" function
*/
static void
f_mapcheck(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
get_maparg(argvars, rettv, FALSE);
}
static void find_some_match __ARGS((typval_T *argvars, typval_T *rettv, int start));
static void
find_some_match(argvars, rettv, type)
typval_T *argvars;
typval_T *rettv;
int type;
{
char_u *str = NULL;
long len = 0;
char_u *expr = NULL;
char_u *pat;
regmatch_T regmatch;
char_u patbuf[NUMBUFLEN];
char_u strbuf[NUMBUFLEN];
char_u *save_cpo;
long start = 0;
long nth = 1;
colnr_T startcol = 0;
int match = 0;
list_T *l = NULL;
listitem_T *li = NULL;
long idx = 0;
char_u *tofree = NULL;
/* Make 'cpoptions' empty, the 'l' flag should not be used here. */
save_cpo = p_cpo;
p_cpo = (char_u *)"";
rettv->vval.v_number = -1;
if (type == 3)
{
/* return empty list when there are no matches */
if (rettv_list_alloc(rettv) == FAIL)
goto theend;
}
else if (type == 2)
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
}
if (argvars[0].v_type == VAR_LIST)
{
if ((l = argvars[0].vval.v_list) == NULL)
goto theend;
li = l->lv_first;
}
else
{
expr = str = get_tv_string(&argvars[0]);
len = (long)STRLEN(str);
}
pat = get_tv_string_buf_chk(&argvars[1], patbuf);
if (pat == NULL)
goto theend;
if (argvars[2].v_type != VAR_UNKNOWN)
{
int error = FALSE;
start = get_tv_number_chk(&argvars[2], &error);
if (error)
goto theend;
if (l != NULL)
{
li = list_find(l, start);
if (li == NULL)
goto theend;
idx = l->lv_idx; /* use the cached index */
}
else
{
if (start < 0)
start = 0;
if (start > len)
goto theend;
/* When "count" argument is there ignore matches before "start",
* otherwise skip part of the string. Differs when pattern is "^"
* or "\<". */
if (argvars[3].v_type != VAR_UNKNOWN)
startcol = start;
else
{
str += start;
len -= start;
}
}
if (argvars[3].v_type != VAR_UNKNOWN)
nth = get_tv_number_chk(&argvars[3], &error);
if (error)
goto theend;
}
regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
if (regmatch.regprog != NULL)
{
regmatch.rm_ic = p_ic;
for (;;)
{
if (l != NULL)
{
if (li == NULL)
{
match = FALSE;
break;
}
vim_free(tofree);
str = echo_string(&li->li_tv, &tofree, strbuf, 0);
if (str == NULL)
break;
}
match = vim_regexec_nl(&regmatch, str, (colnr_T)startcol);
if (match && --nth <= 0)
break;
if (l == NULL && !match)
break;
/* Advance to just after the match. */
if (l != NULL)
{
li = li->li_next;
++idx;
}
else
{
#ifdef FEAT_MBYTE
startcol = (colnr_T)(regmatch.startp[0]
+ (*mb_ptr2len)(regmatch.startp[0]) - str);
#else
startcol = (colnr_T)(regmatch.startp[0] + 1 - str);
#endif
if (startcol > (colnr_T)len
|| str + startcol <= regmatch.startp[0])
{
match = FALSE;
break;
}
}
}
if (match)
{
if (type == 3)
{
int i;
/* return list with matched string and submatches */
for (i = 0; i < NSUBEXP; ++i)
{
if (regmatch.endp[i] == NULL)
{
if (list_append_string(rettv->vval.v_list,
(char_u *)"", 0) == FAIL)
break;
}
else if (list_append_string(rettv->vval.v_list,
regmatch.startp[i],
(int)(regmatch.endp[i] - regmatch.startp[i]))
== FAIL)
break;
}
}
else if (type == 2)
{
/* return matched string */
if (l != NULL)
copy_tv(&li->li_tv, rettv);
else
rettv->vval.v_string = vim_strnsave(regmatch.startp[0],
(int)(regmatch.endp[0] - regmatch.startp[0]));
}
else if (l != NULL)
rettv->vval.v_number = idx;
else
{
if (type != 0)
rettv->vval.v_number =
(varnumber_T)(regmatch.startp[0] - str);
else
rettv->vval.v_number =
(varnumber_T)(regmatch.endp[0] - str);
rettv->vval.v_number += (varnumber_T)(str - expr);
}
}
vim_regfree(regmatch.regprog);
}
theend:
vim_free(tofree);
p_cpo = save_cpo;
}
/*
* "match()" function
*/
static void
f_match(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
find_some_match(argvars, rettv, 1);
}
/*
* "matchadd()" function
*/
static void
f_matchadd(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_SEARCH_EXTRA
char_u buf[NUMBUFLEN];
char_u *grp = get_tv_string_buf_chk(&argvars[0], buf); /* group */
char_u *pat = get_tv_string_buf_chk(&argvars[1], buf); /* pattern */
int prio = 10; /* default priority */
int id = -1;
int error = FALSE;
char_u *conceal_char = NULL;
rettv->vval.v_number = -1;
if (grp == NULL || pat == NULL)
return;
if (argvars[2].v_type != VAR_UNKNOWN)
{
prio = get_tv_number_chk(&argvars[2], &error);
if (argvars[3].v_type != VAR_UNKNOWN)
{
id = get_tv_number_chk(&argvars[3], &error);
if (argvars[4].v_type != VAR_UNKNOWN)
{
if (argvars[4].v_type != VAR_DICT)
{
EMSG(_(e_dictreq));
return;
}
if (dict_find(argvars[4].vval.v_dict,
(char_u *)"conceal", -1) != NULL)
conceal_char = get_dict_string(argvars[4].vval.v_dict,
(char_u *)"conceal", FALSE);
}
}
}
if (error == TRUE)
return;
if (id >= 1 && id <= 3)
{
EMSGN("E798: ID is reserved for \":match\": %ld", id);
return;
}
rettv->vval.v_number = match_add(curwin, grp, pat, prio, id, NULL,
conceal_char);
#endif
}
/*
* "matchaddpos()" function
*/
static void
f_matchaddpos(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_SEARCH_EXTRA
char_u buf[NUMBUFLEN];
char_u *group;
int prio = 10;
int id = -1;
int error = FALSE;
list_T *l;
char_u *conceal_char = NULL;
rettv->vval.v_number = -1;
group = get_tv_string_buf_chk(&argvars[0], buf);
if (group == NULL)
return;
if (argvars[1].v_type != VAR_LIST)
{
EMSG2(_(e_listarg), "matchaddpos()");
return;
}
l = argvars[1].vval.v_list;
if (l == NULL)
return;
if (argvars[2].v_type != VAR_UNKNOWN)
{
prio = get_tv_number_chk(&argvars[2], &error);
if (argvars[3].v_type != VAR_UNKNOWN)
{
id = get_tv_number_chk(&argvars[3], &error);
if (argvars[4].v_type != VAR_UNKNOWN)
{
if (argvars[4].v_type != VAR_DICT)
{
EMSG(_(e_dictreq));
return;
}
if (dict_find(argvars[4].vval.v_dict,
(char_u *)"conceal", -1) != NULL)
conceal_char = get_dict_string(argvars[4].vval.v_dict,
(char_u *)"conceal", FALSE);
}
}
}
if (error == TRUE)
return;
/* id == 3 is ok because matchaddpos() is supposed to substitute :3match */
if (id == 1 || id == 2)
{
EMSGN("E798: ID is reserved for \":match\": %ld", id);
return;
}
rettv->vval.v_number = match_add(curwin, group, NULL, prio, id, l,
conceal_char);
#endif
}
/*
* "matcharg()" function
*/
static void
f_matcharg(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
if (rettv_list_alloc(rettv) == OK)
{
#ifdef FEAT_SEARCH_EXTRA
int id = get_tv_number(&argvars[0]);
matchitem_T *m;
if (id >= 1 && id <= 3)
{
if ((m = (matchitem_T *)get_match(curwin, id)) != NULL)
{
list_append_string(rettv->vval.v_list,
syn_id2name(m->hlg_id), -1);
list_append_string(rettv->vval.v_list, m->pattern, -1);
}
else
{
list_append_string(rettv->vval.v_list, NULL, -1);
list_append_string(rettv->vval.v_list, NULL, -1);
}
}
#endif
}
}
/*
* "matchdelete()" function
*/
static void
f_matchdelete(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_SEARCH_EXTRA
rettv->vval.v_number = match_delete(curwin,
(int)get_tv_number(&argvars[0]), TRUE);
#endif
}
/*
* "matchend()" function
*/
static void
f_matchend(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
find_some_match(argvars, rettv, 0);
}
/*
* "matchlist()" function
*/
static void
f_matchlist(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
find_some_match(argvars, rettv, 3);
}
/*
* "matchstr()" function
*/
static void
f_matchstr(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
find_some_match(argvars, rettv, 2);
}
static void max_min __ARGS((typval_T *argvars, typval_T *rettv, int domax));
static void
max_min(argvars, rettv, domax)
typval_T *argvars;
typval_T *rettv;
int domax;
{
long n = 0;
long i;
int error = FALSE;
if (argvars[0].v_type == VAR_LIST)
{
list_T *l;
listitem_T *li;
l = argvars[0].vval.v_list;
if (l != NULL)
{
li = l->lv_first;
if (li != NULL)
{
n = get_tv_number_chk(&li->li_tv, &error);
for (;;)
{
li = li->li_next;
if (li == NULL)
break;
i = get_tv_number_chk(&li->li_tv, &error);
if (domax ? i > n : i < n)
n = i;
}
}
}
}
else if (argvars[0].v_type == VAR_DICT)
{
dict_T *d;
int first = TRUE;
hashitem_T *hi;
int todo;
d = argvars[0].vval.v_dict;
if (d != NULL)
{
todo = (int)d->dv_hashtab.ht_used;
for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
i = get_tv_number_chk(&HI2DI(hi)->di_tv, &error);
if (first)
{
n = i;
first = FALSE;
}
else if (domax ? i > n : i < n)
n = i;
}
}
}
}
else
EMSG(_(e_listdictarg));
rettv->vval.v_number = error ? 0 : n;
}
/*
* "max()" function
*/
static void
f_max(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
max_min(argvars, rettv, TRUE);
}
/*
* "min()" function
*/
static void
f_min(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
max_min(argvars, rettv, FALSE);
}
static int mkdir_recurse __ARGS((char_u *dir, int prot));
/*
* Create the directory in which "dir" is located, and higher levels when
* needed.
*/
static int
mkdir_recurse(dir, prot)
char_u *dir;
int prot;
{
char_u *p;
char_u *updir;
int r = FAIL;
/* Get end of directory name in "dir".
* We're done when it's "/" or "c:/". */
p = gettail_sep(dir);
if (p <= get_past_head(dir))
return OK;
/* If the directory exists we're done. Otherwise: create it.*/
updir = vim_strnsave(dir, (int)(p - dir));
if (updir == NULL)
return FAIL;
if (mch_isdir(updir))
r = OK;
else if (mkdir_recurse(updir, prot) == OK)
r = vim_mkdir_emsg(updir, prot);
vim_free(updir);
return r;
}
#ifdef vim_mkdir
/*
* "mkdir()" function
*/
static void
f_mkdir(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *dir;
char_u buf[NUMBUFLEN];
int prot = 0755;
rettv->vval.v_number = FAIL;
if (check_restricted() || check_secure())
return;
dir = get_tv_string_buf(&argvars[0], buf);
if (*dir == NUL)
rettv->vval.v_number = FAIL;
else
{
if (*gettail(dir) == NUL)
/* remove trailing slashes */
*gettail_sep(dir) = NUL;
if (argvars[1].v_type != VAR_UNKNOWN)
{
if (argvars[2].v_type != VAR_UNKNOWN)
prot = get_tv_number_chk(&argvars[2], NULL);
if (prot != -1 && STRCMP(get_tv_string(&argvars[1]), "p") == 0)
mkdir_recurse(dir, prot);
}
rettv->vval.v_number = prot == -1 ? FAIL : vim_mkdir_emsg(dir, prot);
}
}
#endif
/*
* "mode()" function
*/
static void
f_mode(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u buf[3];
buf[1] = NUL;
buf[2] = NUL;
if (VIsual_active)
{
if (VIsual_select)
buf[0] = VIsual_mode + 's' - 'v';
else
buf[0] = VIsual_mode;
}
else if (State == HITRETURN || State == ASKMORE || State == SETWSIZE
|| State == CONFIRM)
{
buf[0] = 'r';
if (State == ASKMORE)
buf[1] = 'm';
else if (State == CONFIRM)
buf[1] = '?';
}
else if (State == EXTERNCMD)
buf[0] = '!';
else if (State & INSERT)
{
#ifdef FEAT_VREPLACE
if (State & VREPLACE_FLAG)
{
buf[0] = 'R';
buf[1] = 'v';
}
else
#endif
if (State & REPLACE_FLAG)
buf[0] = 'R';
else
buf[0] = 'i';
}
else if (State & CMDLINE)
{
buf[0] = 'c';
if (exmode_active)
buf[1] = 'v';
}
else if (exmode_active)
{
buf[0] = 'c';
buf[1] = 'e';
}
else
{
buf[0] = 'n';
if (finish_op)
buf[1] = 'o';
}
/* Clear out the minor mode when the argument is not a non-zero number or
* non-empty string. */
if (!non_zero_arg(&argvars[0]))
buf[1] = NUL;
rettv->vval.v_string = vim_strsave(buf);
rettv->v_type = VAR_STRING;
}
#if defined(FEAT_MZSCHEME) || defined(PROTO)
/*
* "mzeval()" function
*/
static void
f_mzeval(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *str;
char_u buf[NUMBUFLEN];
str = get_tv_string_buf(&argvars[0], buf);
do_mzeval(str, rettv);
}
void
mzscheme_call_vim(name, args, rettv)
char_u *name;
typval_T *args;
typval_T *rettv;
{
typval_T argvars[3];
argvars[0].v_type = VAR_STRING;
argvars[0].vval.v_string = name;
copy_tv(args, &argvars[1]);
argvars[2].v_type = VAR_UNKNOWN;
f_call(argvars, rettv);
clear_tv(&argvars[1]);
}
#endif
/*
* "nextnonblank()" function
*/
static void
f_nextnonblank(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
linenr_T lnum;
for (lnum = get_tv_lnum(argvars); ; ++lnum)
{
if (lnum < 0 || lnum > curbuf->b_ml.ml_line_count)
{
lnum = 0;
break;
}
if (*skipwhite(ml_get(lnum)) != NUL)
break;
}
rettv->vval.v_number = lnum;
}
/*
* "nr2char()" function
*/
static void
f_nr2char(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u buf[NUMBUFLEN];
#ifdef FEAT_MBYTE
if (has_mbyte)
{
int utf8 = 0;
if (argvars[1].v_type != VAR_UNKNOWN)
utf8 = get_tv_number_chk(&argvars[1], NULL);
if (utf8)
buf[(*utf_char2bytes)((int)get_tv_number(&argvars[0]), buf)] = NUL;
else
buf[(*mb_char2bytes)((int)get_tv_number(&argvars[0]), buf)] = NUL;
}
else
#endif
{
buf[0] = (char_u)get_tv_number(&argvars[0]);
buf[1] = NUL;
}
rettv->v_type = VAR_STRING;
rettv->vval.v_string = vim_strsave(buf);
}
/*
* "or(expr, expr)" function
*/
static void
f_or(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_number = get_tv_number_chk(&argvars[0], NULL)
| get_tv_number_chk(&argvars[1], NULL);
}
/*
* "pathshorten()" function
*/
static void
f_pathshorten(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *p;
rettv->v_type = VAR_STRING;
p = get_tv_string_chk(&argvars[0]);
if (p == NULL)
rettv->vval.v_string = NULL;
else
{
p = vim_strsave(p);
rettv->vval.v_string = p;
if (p != NULL)
shorten_dir(p);
}
}
#ifdef FEAT_PERL
/*
* "perleval()" function
*/
static void
f_perleval(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *str;
char_u buf[NUMBUFLEN];
str = get_tv_string_buf(&argvars[0], buf);
do_perleval(str, rettv);
}
#endif
#ifdef FEAT_FLOAT
/*
* "pow()" function
*/
static void
f_pow(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T fx, fy;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &fx) == OK
&& get_float_arg(&argvars[1], &fy) == OK)
rettv->vval.v_float = pow(fx, fy);
else
rettv->vval.v_float = 0.0;
}
#endif
/*
* "prevnonblank()" function
*/
static void
f_prevnonblank(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
linenr_T lnum;
lnum = get_tv_lnum(argvars);
if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count)
lnum = 0;
else
while (lnum >= 1 && *skipwhite(ml_get(lnum)) == NUL)
--lnum;
rettv->vval.v_number = lnum;
}
#ifdef HAVE_STDARG_H
/* This dummy va_list is here because:
* - passing a NULL pointer doesn't work when va_list isn't a pointer
* - locally in the function results in a "used before set" warning
* - using va_start() to initialize it gives "function with fixed args" error */
static va_list ap;
#endif
/*
* "printf()" function
*/
static void
f_printf(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
#ifdef HAVE_STDARG_H /* only very old compilers can't do this */
{
char_u buf[NUMBUFLEN];
int len;
char_u *s;
int saved_did_emsg = did_emsg;
char *fmt;
/* Get the required length, allocate the buffer and do it for real. */
did_emsg = FALSE;
fmt = (char *)get_tv_string_buf(&argvars[0], buf);
len = vim_vsnprintf(NULL, 0, fmt, ap, argvars + 1);
if (!did_emsg)
{
s = alloc(len + 1);
if (s != NULL)
{
rettv->vval.v_string = s;
(void)vim_vsnprintf((char *)s, len + 1, fmt, ap, argvars + 1);
}
}
did_emsg |= saved_did_emsg;
}
#endif
}
/*
* "pumvisible()" function
*/
static void
f_pumvisible(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_INS_EXPAND
if (pum_visible())
rettv->vval.v_number = 1;
#endif
}
#ifdef FEAT_PYTHON3
/*
* "py3eval()" function
*/
static void
f_py3eval(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *str;
char_u buf[NUMBUFLEN];
str = get_tv_string_buf(&argvars[0], buf);
do_py3eval(str, rettv);
}
#endif
#ifdef FEAT_PYTHON
/*
* "pyeval()" function
*/
static void
f_pyeval(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *str;
char_u buf[NUMBUFLEN];
str = get_tv_string_buf(&argvars[0], buf);
do_pyeval(str, rettv);
}
#endif
/*
* "range()" function
*/
static void
f_range(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
long start;
long end;
long stride = 1;
long i;
int error = FALSE;
start = get_tv_number_chk(&argvars[0], &error);
if (argvars[1].v_type == VAR_UNKNOWN)
{
end = start - 1;
start = 0;
}
else
{
end = get_tv_number_chk(&argvars[1], &error);
if (argvars[2].v_type != VAR_UNKNOWN)
stride = get_tv_number_chk(&argvars[2], &error);
}
if (error)
return; /* type error; errmsg already given */
if (stride == 0)
EMSG(_("E726: Stride is zero"));
else if (stride > 0 ? end + 1 < start : end - 1 > start)
EMSG(_("E727: Start past end"));
else
{
if (rettv_list_alloc(rettv) == OK)
for (i = start; stride > 0 ? i <= end : i >= end; i += stride)
if (list_append_number(rettv->vval.v_list,
(varnumber_T)i) == FAIL)
break;
}
}
/*
* "readfile()" function
*/
static void
f_readfile(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int binary = FALSE;
int failed = FALSE;
char_u *fname;
FILE *fd;
char_u buf[(IOSIZE/256)*256]; /* rounded to avoid odd + 1 */
int io_size = sizeof(buf);
int readlen; /* size of last fread() */
char_u *prev = NULL; /* previously read bytes, if any */
long prevlen = 0; /* length of data in prev */
long prevsize = 0; /* size of prev buffer */
long maxline = MAXLNUM;
long cnt = 0;
char_u *p; /* position in buf */
char_u *start; /* start of current line */
if (argvars[1].v_type != VAR_UNKNOWN)
{
if (STRCMP(get_tv_string(&argvars[1]), "b") == 0)
binary = TRUE;
if (argvars[2].v_type != VAR_UNKNOWN)
maxline = get_tv_number(&argvars[2]);
}
if (rettv_list_alloc(rettv) == FAIL)
return;
/* Always open the file in binary mode, library functions have a mind of
* their own about CR-LF conversion. */
fname = get_tv_string(&argvars[0]);
if (*fname == NUL || (fd = mch_fopen((char *)fname, READBIN)) == NULL)
{
EMSG2(_(e_notopen), *fname == NUL ? (char_u *)_("<empty>") : fname);
return;
}
while (cnt < maxline || maxline < 0)
{
readlen = (int)fread(buf, 1, io_size, fd);
/* This for loop processes what was read, but is also entered at end
* of file so that either:
* - an incomplete line gets written
* - a "binary" file gets an empty line at the end if it ends in a
* newline. */
for (p = buf, start = buf;
p < buf + readlen || (readlen <= 0 && (prevlen > 0 || binary));
++p)
{
if (*p == '\n' || readlen <= 0)
{
listitem_T *li;
char_u *s = NULL;
long_u len = p - start;
/* Finished a line. Remove CRs before NL. */
if (readlen > 0 && !binary)
{
while (len > 0 && start[len - 1] == '\r')
--len;
/* removal may cross back to the "prev" string */
if (len == 0)
while (prevlen > 0 && prev[prevlen - 1] == '\r')
--prevlen;
}
if (prevlen == 0)
s = vim_strnsave(start, (int)len);
else
{
/* Change "prev" buffer to be the right size. This way
* the bytes are only copied once, and very long lines are
* allocated only once. */
if ((s = vim_realloc(prev, prevlen + len + 1)) != NULL)
{
mch_memmove(s + prevlen, start, len);
s[prevlen + len] = NUL;
prev = NULL; /* the list will own the string */
prevlen = prevsize = 0;
}
}
if (s == NULL)
{
do_outofmem_msg((long_u) prevlen + len + 1);
failed = TRUE;
break;
}
if ((li = listitem_alloc()) == NULL)
{
vim_free(s);
failed = TRUE;
break;
}
li->li_tv.v_type = VAR_STRING;
li->li_tv.v_lock = 0;
li->li_tv.vval.v_string = s;
list_append(rettv->vval.v_list, li);
start = p + 1; /* step over newline */
if ((++cnt >= maxline && maxline >= 0) || readlen <= 0)
break;
}
else if (*p == NUL)
*p = '\n';
#ifdef FEAT_MBYTE
/* Check for utf8 "bom"; U+FEFF is encoded as EF BB BF. Do this
* when finding the BF and check the previous two bytes. */
else if (*p == 0xbf && enc_utf8 && !binary)
{
/* Find the two bytes before the 0xbf. If p is at buf, or buf
* + 1, these may be in the "prev" string. */
char_u back1 = p >= buf + 1 ? p[-1]
: prevlen >= 1 ? prev[prevlen - 1] : NUL;
char_u back2 = p >= buf + 2 ? p[-2]
: p == buf + 1 && prevlen >= 1 ? prev[prevlen - 1]
: prevlen >= 2 ? prev[prevlen - 2] : NUL;
if (back2 == 0xef && back1 == 0xbb)
{
char_u *dest = p - 2;
/* Usually a BOM is at the beginning of a file, and so at
* the beginning of a line; then we can just step over it.
*/
if (start == dest)
start = p + 1;
else
{
/* have to shuffle buf to close gap */
int adjust_prevlen = 0;
if (dest < buf)
{
adjust_prevlen = (int)(buf - dest); /* must be 1 or 2 */
dest = buf;
}
if (readlen > p - buf + 1)
mch_memmove(dest, p + 1, readlen - (p - buf) - 1);
readlen -= 3 - adjust_prevlen;
prevlen -= adjust_prevlen;
p = dest - 1;
}
}
}
#endif
} /* for */
if (failed || (cnt >= maxline && maxline >= 0) || readlen <= 0)
break;
if (start < p)
{
/* There's part of a line in buf, store it in "prev". */
if (p - start + prevlen >= prevsize)
{
/* need bigger "prev" buffer */
char_u *newprev;
/* A common use case is ordinary text files and "prev" gets a
* fragment of a line, so the first allocation is made
* small, to avoid repeatedly 'allocing' large and
* 'reallocing' small. */
if (prevsize == 0)
prevsize = (long)(p - start);
else
{
long grow50pc = (prevsize * 3) / 2;
long growmin = (long)((p - start) * 2 + prevlen);
prevsize = grow50pc > growmin ? grow50pc : growmin;
}
newprev = prev == NULL ? alloc(prevsize)
: vim_realloc(prev, prevsize);
if (newprev == NULL)
{
do_outofmem_msg((long_u)prevsize);
failed = TRUE;
break;
}
prev = newprev;
}
/* Add the line part to end of "prev". */
mch_memmove(prev + prevlen, start, p - start);
prevlen += (long)(p - start);
}
} /* while */
/*
* For a negative line count use only the lines at the end of the file,
* free the rest.
*/
if (!failed && maxline < 0)
while (cnt > -maxline)
{
listitem_remove(rettv->vval.v_list, rettv->vval.v_list->lv_first);
--cnt;
}
if (failed)
{
list_free(rettv->vval.v_list, TRUE);
/* readfile doc says an empty list is returned on error */
rettv->vval.v_list = list_alloc();
}
vim_free(prev);
fclose(fd);
}
#if defined(FEAT_RELTIME)
static int list2proftime __ARGS((typval_T *arg, proftime_T *tm));
/*
* Convert a List to proftime_T.
* Return FAIL when there is something wrong.
*/
static int
list2proftime(arg, tm)
typval_T *arg;
proftime_T *tm;
{
long n1, n2;
int error = FALSE;
if (arg->v_type != VAR_LIST || arg->vval.v_list == NULL
|| arg->vval.v_list->lv_len != 2)
return FAIL;
n1 = list_find_nr(arg->vval.v_list, 0L, &error);
n2 = list_find_nr(arg->vval.v_list, 1L, &error);
# ifdef WIN3264
tm->HighPart = n1;
tm->LowPart = n2;
# else
tm->tv_sec = n1;
tm->tv_usec = n2;
# endif
return error ? FAIL : OK;
}
#endif /* FEAT_RELTIME */
/*
* "reltime()" function
*/
static void
f_reltime(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_RELTIME
proftime_T res;
proftime_T start;
if (argvars[0].v_type == VAR_UNKNOWN)
{
/* No arguments: get current time. */
profile_start(&res);
}
else if (argvars[1].v_type == VAR_UNKNOWN)
{
if (list2proftime(&argvars[0], &res) == FAIL)
return;
profile_end(&res);
}
else
{
/* Two arguments: compute the difference. */
if (list2proftime(&argvars[0], &start) == FAIL
|| list2proftime(&argvars[1], &res) == FAIL)
return;
profile_sub(&res, &start);
}
if (rettv_list_alloc(rettv) == OK)
{
long n1, n2;
# ifdef WIN3264
n1 = res.HighPart;
n2 = res.LowPart;
# else
n1 = res.tv_sec;
n2 = res.tv_usec;
# endif
list_append_number(rettv->vval.v_list, (varnumber_T)n1);
list_append_number(rettv->vval.v_list, (varnumber_T)n2);
}
#endif
}
/*
* "reltimestr()" function
*/
static void
f_reltimestr(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_RELTIME
proftime_T tm;
#endif
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
#ifdef FEAT_RELTIME
if (list2proftime(&argvars[0], &tm) == OK)
rettv->vval.v_string = vim_strsave((char_u *)profile_msg(&tm));
#endif
}
#if defined(FEAT_CLIENTSERVER) && defined(FEAT_X11)
static void make_connection __ARGS((void));
static int check_connection __ARGS((void));
static void
make_connection()
{
if (X_DISPLAY == NULL
# ifdef FEAT_GUI
&& !gui.in_use
# endif
)
{
x_force_connect = TRUE;
setup_term_clip();
x_force_connect = FALSE;
}
}
static int
check_connection()
{
make_connection();
if (X_DISPLAY == NULL)
{
EMSG(_("E240: No connection to Vim server"));
return FAIL;
}
return OK;
}
#endif
#ifdef FEAT_CLIENTSERVER
static void remote_common __ARGS((typval_T *argvars, typval_T *rettv, int expr));
static void
remote_common(argvars, rettv, expr)
typval_T *argvars;
typval_T *rettv;
int expr;
{
char_u *server_name;
char_u *keys;
char_u *r = NULL;
char_u buf[NUMBUFLEN];
# ifdef WIN32
HWND w;
# else
Window w;
# endif
if (check_restricted() || check_secure())
return;
# ifdef FEAT_X11
if (check_connection() == FAIL)
return;
# endif
server_name = get_tv_string_chk(&argvars[0]);
if (server_name == NULL)
return; /* type error; errmsg already given */
keys = get_tv_string_buf(&argvars[1], buf);
# ifdef WIN32
if (serverSendToVim(server_name, keys, &r, &w, expr, TRUE) < 0)
# else
if (serverSendToVim(X_DISPLAY, server_name, keys, &r, &w, expr, 0, TRUE)
< 0)
# endif
{
if (r != NULL)
EMSG(r); /* sending worked but evaluation failed */
else
EMSG2(_("E241: Unable to send to %s"), server_name);
return;
}
rettv->vval.v_string = r;
if (argvars[2].v_type != VAR_UNKNOWN)
{
dictitem_T v;
char_u str[30];
char_u *idvar;
sprintf((char *)str, PRINTF_HEX_LONG_U, (long_u)w);
v.di_tv.v_type = VAR_STRING;
v.di_tv.vval.v_string = vim_strsave(str);
idvar = get_tv_string_chk(&argvars[2]);
if (idvar != NULL)
set_var(idvar, &v.di_tv, FALSE);
vim_free(v.di_tv.vval.v_string);
}
}
#endif
/*
* "remote_expr()" function
*/
static void
f_remote_expr(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
#ifdef FEAT_CLIENTSERVER
remote_common(argvars, rettv, TRUE);
#endif
}
/*
* "remote_foreground()" function
*/
static void
f_remote_foreground(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_CLIENTSERVER
# ifdef WIN32
/* On Win32 it's done in this application. */
{
char_u *server_name = get_tv_string_chk(&argvars[0]);
if (server_name != NULL)
serverForeground(server_name);
}
# else
/* Send a foreground() expression to the server. */
argvars[1].v_type = VAR_STRING;
argvars[1].vval.v_string = vim_strsave((char_u *)"foreground()");
argvars[2].v_type = VAR_UNKNOWN;
remote_common(argvars, rettv, TRUE);
vim_free(argvars[1].vval.v_string);
# endif
#endif
}
static void
f_remote_peek(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_CLIENTSERVER
dictitem_T v;
char_u *s = NULL;
# ifdef WIN32
long_u n = 0;
# endif
char_u *serverid;
if (check_restricted() || check_secure())
{
rettv->vval.v_number = -1;
return;
}
serverid = get_tv_string_chk(&argvars[0]);
if (serverid == NULL)
{
rettv->vval.v_number = -1;
return; /* type error; errmsg already given */
}
# ifdef WIN32
sscanf(serverid, SCANF_HEX_LONG_U, &n);
if (n == 0)
rettv->vval.v_number = -1;
else
{
s = serverGetReply((HWND)n, FALSE, FALSE, FALSE);
rettv->vval.v_number = (s != NULL);
}
# else
if (check_connection() == FAIL)
return;
rettv->vval.v_number = serverPeekReply(X_DISPLAY,
serverStrToWin(serverid), &s);
# endif
if (argvars[1].v_type != VAR_UNKNOWN && rettv->vval.v_number > 0)
{
char_u *retvar;
v.di_tv.v_type = VAR_STRING;
v.di_tv.vval.v_string = vim_strsave(s);
retvar = get_tv_string_chk(&argvars[1]);
if (retvar != NULL)
set_var(retvar, &v.di_tv, FALSE);
vim_free(v.di_tv.vval.v_string);
}
#else
rettv->vval.v_number = -1;
#endif
}
static void
f_remote_read(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
char_u *r = NULL;
#ifdef FEAT_CLIENTSERVER
char_u *serverid = get_tv_string_chk(&argvars[0]);
if (serverid != NULL && !check_restricted() && !check_secure())
{
# ifdef WIN32
/* The server's HWND is encoded in the 'id' parameter */
long_u n = 0;
sscanf(serverid, SCANF_HEX_LONG_U, &n);
if (n != 0)
r = serverGetReply((HWND)n, FALSE, TRUE, TRUE);
if (r == NULL)
# else
if (check_connection() == FAIL || serverReadReply(X_DISPLAY,
serverStrToWin(serverid), &r, FALSE) < 0)
# endif
EMSG(_("E277: Unable to read a server reply"));
}
#endif
rettv->v_type = VAR_STRING;
rettv->vval.v_string = r;
}
/*
* "remote_send()" function
*/
static void
f_remote_send(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
#ifdef FEAT_CLIENTSERVER
remote_common(argvars, rettv, FALSE);
#endif
}
/*
* "remove()" function
*/
static void
f_remove(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
list_T *l;
listitem_T *item, *item2;
listitem_T *li;
long idx;
long end;
char_u *key;
dict_T *d;
dictitem_T *di;
char_u *arg_errmsg = (char_u *)N_("remove() argument");
if (argvars[0].v_type == VAR_DICT)
{
if (argvars[2].v_type != VAR_UNKNOWN)
EMSG2(_(e_toomanyarg), "remove()");
else if ((d = argvars[0].vval.v_dict) != NULL
&& !tv_check_lock(d->dv_lock, arg_errmsg, TRUE))
{
key = get_tv_string_chk(&argvars[1]);
if (key != NULL)
{
di = dict_find(d, key, -1);
if (di == NULL)
EMSG2(_(e_dictkey), key);
else if (!var_check_fixed(di->di_flags, arg_errmsg, TRUE)
&& !var_check_ro(di->di_flags, arg_errmsg, TRUE))
{
*rettv = di->di_tv;
init_tv(&di->di_tv);
dictitem_remove(d, di);
}
}
}
}
else if (argvars[0].v_type != VAR_LIST)
EMSG2(_(e_listdictarg), "remove()");
else if ((l = argvars[0].vval.v_list) != NULL
&& !tv_check_lock(l->lv_lock, arg_errmsg, TRUE))
{
int error = FALSE;
idx = get_tv_number_chk(&argvars[1], &error);
if (error)
; /* type error: do nothing, errmsg already given */
else if ((item = list_find(l, idx)) == NULL)
EMSGN(_(e_listidx), idx);
else
{
if (argvars[2].v_type == VAR_UNKNOWN)
{
/* Remove one item, return its value. */
vimlist_remove(l, item, item);
*rettv = item->li_tv;
vim_free(item);
}
else
{
/* Remove range of items, return list with values. */
end = get_tv_number_chk(&argvars[2], &error);
if (error)
; /* type error: do nothing */
else if ((item2 = list_find(l, end)) == NULL)
EMSGN(_(e_listidx), end);
else
{
int cnt = 0;
for (li = item; li != NULL; li = li->li_next)
{
++cnt;
if (li == item2)
break;
}
if (li == NULL) /* didn't find "item2" after "item" */
EMSG(_(e_invrange));
else
{
vimlist_remove(l, item, item2);
if (rettv_list_alloc(rettv) == OK)
{
l = rettv->vval.v_list;
l->lv_first = item;
l->lv_last = item2;
item->li_prev = NULL;
item2->li_next = NULL;
l->lv_len = cnt;
}
}
}
}
}
}
}
/*
* "rename({from}, {to})" function
*/
static void
f_rename(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u buf[NUMBUFLEN];
if (check_restricted() || check_secure())
rettv->vval.v_number = -1;
else
rettv->vval.v_number = vim_rename(get_tv_string(&argvars[0]),
get_tv_string_buf(&argvars[1], buf));
}
/*
* "repeat()" function
*/
static void
f_repeat(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *p;
int n;
int slen;
int len;
char_u *r;
int i;
n = get_tv_number(&argvars[1]);
if (argvars[0].v_type == VAR_LIST)
{
if (rettv_list_alloc(rettv) == OK && argvars[0].vval.v_list != NULL)
while (n-- > 0)
if (list_extend(rettv->vval.v_list,
argvars[0].vval.v_list, NULL) == FAIL)
break;
}
else
{
p = get_tv_string(&argvars[0]);
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
slen = (int)STRLEN(p);
len = slen * n;
if (len <= 0)
return;
r = alloc(len + 1);
if (r != NULL)
{
for (i = 0; i < n; i++)
mch_memmove(r + i * slen, p, (size_t)slen);
r[len] = NUL;
}
rettv->vval.v_string = r;
}
}
/*
* "resolve()" function
*/
static void
f_resolve(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *p;
#ifdef HAVE_READLINK
char_u *buf = NULL;
#endif
p = get_tv_string(&argvars[0]);
#ifdef FEAT_SHORTCUT
{
char_u *v = NULL;
v = mch_resolve_shortcut(p);
if (v != NULL)
rettv->vval.v_string = v;
else
rettv->vval.v_string = vim_strsave(p);
}
#else
# ifdef HAVE_READLINK
{
char_u *cpy;
int len;
char_u *remain = NULL;
char_u *q;
int is_relative_to_current = FALSE;
int has_trailing_pathsep = FALSE;
int limit = 100;
p = vim_strsave(p);
if (p[0] == '.' && (vim_ispathsep(p[1])
|| (p[1] == '.' && (vim_ispathsep(p[2])))))
is_relative_to_current = TRUE;
len = STRLEN(p);
if (len > 0 && after_pathsep(p, p + len))
{
has_trailing_pathsep = TRUE;
p[len - 1] = NUL; /* the trailing slash breaks readlink() */
}
q = getnextcomp(p);
if (*q != NUL)
{
/* Separate the first path component in "p", and keep the
* remainder (beginning with the path separator). */
remain = vim_strsave(q - 1);
q[-1] = NUL;
}
buf = alloc(MAXPATHL + 1);
if (buf == NULL)
goto fail;
for (;;)
{
for (;;)
{
len = readlink((char *)p, (char *)buf, MAXPATHL);
if (len <= 0)
break;
buf[len] = NUL;
if (limit-- == 0)
{
vim_free(p);
vim_free(remain);
EMSG(_("E655: Too many symbolic links (cycle?)"));
rettv->vval.v_string = NULL;
goto fail;
}
/* Ensure that the result will have a trailing path separator
* if the argument has one. */
if (remain == NULL && has_trailing_pathsep)
add_pathsep(buf);
/* Separate the first path component in the link value and
* concatenate the remainders. */
q = getnextcomp(vim_ispathsep(*buf) ? buf + 1 : buf);
if (*q != NUL)
{
if (remain == NULL)
remain = vim_strsave(q - 1);
else
{
cpy = concat_str(q - 1, remain);
if (cpy != NULL)
{
vim_free(remain);
remain = cpy;
}
}
q[-1] = NUL;
}
q = gettail(p);
if (q > p && *q == NUL)
{
/* Ignore trailing path separator. */
q[-1] = NUL;
q = gettail(p);
}
if (q > p && !mch_isFullName(buf))
{
/* symlink is relative to directory of argument */
cpy = alloc((unsigned)(STRLEN(p) + STRLEN(buf) + 1));
if (cpy != NULL)
{
STRCPY(cpy, p);
STRCPY(gettail(cpy), buf);
vim_free(p);
p = cpy;
}
}
else
{
vim_free(p);
p = vim_strsave(buf);
}
}
if (remain == NULL)
break;
/* Append the first path component of "remain" to "p". */
q = getnextcomp(remain + 1);
len = q - remain - (*q != NUL);
cpy = vim_strnsave(p, STRLEN(p) + len);
if (cpy != NULL)
{
STRNCAT(cpy, remain, len);
vim_free(p);
p = cpy;
}
/* Shorten "remain". */
if (*q != NUL)
STRMOVE(remain, q - 1);
else
{
vim_free(remain);
remain = NULL;
}
}
/* If the result is a relative path name, make it explicitly relative to
* the current directory if and only if the argument had this form. */
if (!vim_ispathsep(*p))
{
if (is_relative_to_current
&& *p != NUL
&& !(p[0] == '.'
&& (p[1] == NUL
|| vim_ispathsep(p[1])
|| (p[1] == '.'
&& (p[2] == NUL
|| vim_ispathsep(p[2]))))))
{
/* Prepend "./". */
cpy = concat_str((char_u *)"./", p);
if (cpy != NULL)
{
vim_free(p);
p = cpy;
}
}
else if (!is_relative_to_current)
{
/* Strip leading "./". */
q = p;
while (q[0] == '.' && vim_ispathsep(q[1]))
q += 2;
if (q > p)
STRMOVE(p, p + 2);
}
}
/* Ensure that the result will have no trailing path separator
* if the argument had none. But keep "/" or "//". */
if (!has_trailing_pathsep)
{
q = p + STRLEN(p);
if (after_pathsep(p, q))
*gettail_sep(p) = NUL;
}
rettv->vval.v_string = p;
}
# else
rettv->vval.v_string = vim_strsave(p);
# endif
#endif
simplify_filename(rettv->vval.v_string);
#ifdef HAVE_READLINK
fail:
vim_free(buf);
#endif
rettv->v_type = VAR_STRING;
}
/*
* "reverse({list})" function
*/
static void
f_reverse(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
list_T *l;
listitem_T *li, *ni;
if (argvars[0].v_type != VAR_LIST)
EMSG2(_(e_listarg), "reverse()");
else if ((l = argvars[0].vval.v_list) != NULL
&& !tv_check_lock(l->lv_lock,
(char_u *)N_("reverse() argument"), TRUE))
{
li = l->lv_last;
l->lv_first = l->lv_last = NULL;
l->lv_len = 0;
while (li != NULL)
{
ni = li->li_prev;
list_append(l, li);
li = ni;
}
rettv->vval.v_list = l;
rettv->v_type = VAR_LIST;
++l->lv_refcount;
l->lv_idx = l->lv_len - l->lv_idx - 1;
}
}
#define SP_NOMOVE 0x01 /* don't move cursor */
#define SP_REPEAT 0x02 /* repeat to find outer pair */
#define SP_RETCOUNT 0x04 /* return matchcount */
#define SP_SETPCMARK 0x08 /* set previous context mark */
#define SP_START 0x10 /* accept match at start position */
#define SP_SUBPAT 0x20 /* return nr of matching sub-pattern */
#define SP_END 0x40 /* leave cursor at end of match */
#define SP_COLUMN 0x80 /* start at cursor column */
static int get_search_arg __ARGS((typval_T *varp, int *flagsp));
/*
* Get flags for a search function.
* Possibly sets "p_ws".
* Returns BACKWARD, FORWARD or zero (for an error).
*/
static int
get_search_arg(varp, flagsp)
typval_T *varp;
int *flagsp;
{
int dir = FORWARD;
char_u *flags;
char_u nbuf[NUMBUFLEN];
int mask;
if (varp->v_type != VAR_UNKNOWN)
{
flags = get_tv_string_buf_chk(varp, nbuf);
if (flags == NULL)
return 0; /* type error; errmsg already given */
while (*flags != NUL)
{
switch (*flags)
{
case 'b': dir = BACKWARD; break;
case 'w': p_ws = TRUE; break;
case 'W': p_ws = FALSE; break;
default: mask = 0;
if (flagsp != NULL)
switch (*flags)
{
case 'c': mask = SP_START; break;
case 'e': mask = SP_END; break;
case 'm': mask = SP_RETCOUNT; break;
case 'n': mask = SP_NOMOVE; break;
case 'p': mask = SP_SUBPAT; break;
case 'r': mask = SP_REPEAT; break;
case 's': mask = SP_SETPCMARK; break;
case 'z': mask = SP_COLUMN; break;
}
if (mask == 0)
{
EMSG2(_(e_invarg2), flags);
dir = 0;
}
else
*flagsp |= mask;
}
if (dir == 0)
break;
++flags;
}
}
return dir;
}
/*
* Shared by search() and searchpos() functions.
*/
static int
search_cmn(argvars, match_pos, flagsp)
typval_T *argvars;
pos_T *match_pos;
int *flagsp;
{
int flags;
char_u *pat;
pos_T pos;
pos_T save_cursor;
int save_p_ws = p_ws;
int dir;
int retval = 0; /* default: FAIL */
long lnum_stop = 0;
proftime_T tm;
#ifdef FEAT_RELTIME
long time_limit = 0;
#endif
int options = SEARCH_KEEP;
int subpatnum;
pat = get_tv_string(&argvars[0]);
dir = get_search_arg(&argvars[1], flagsp); /* may set p_ws */
if (dir == 0)
goto theend;
flags = *flagsp;
if (flags & SP_START)
options |= SEARCH_START;
if (flags & SP_END)
options |= SEARCH_END;
if (flags & SP_COLUMN)
options |= SEARCH_COL;
/* Optional arguments: line number to stop searching and timeout. */
if (argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN)
{
lnum_stop = get_tv_number_chk(&argvars[2], NULL);
if (lnum_stop < 0)
goto theend;
#ifdef FEAT_RELTIME
if (argvars[3].v_type != VAR_UNKNOWN)
{
time_limit = get_tv_number_chk(&argvars[3], NULL);
if (time_limit < 0)
goto theend;
}
#endif
}
#ifdef FEAT_RELTIME
/* Set the time limit, if there is one. */
profile_setlimit(time_limit, &tm);
#endif
/*
* This function does not accept SP_REPEAT and SP_RETCOUNT flags.
* Check to make sure only those flags are set.
* Also, Only the SP_NOMOVE or the SP_SETPCMARK flag can be set. Both
* flags cannot be set. Check for that condition also.
*/
if (((flags & (SP_REPEAT | SP_RETCOUNT)) != 0)
|| ((flags & SP_NOMOVE) && (flags & SP_SETPCMARK)))
{
EMSG2(_(e_invarg2), get_tv_string(&argvars[1]));
goto theend;
}
pos = save_cursor = curwin->w_cursor;
subpatnum = searchit(curwin, curbuf, &pos, dir, pat, 1L,
options, RE_SEARCH, (linenr_T)lnum_stop, &tm);
if (subpatnum != FAIL)
{
if (flags & SP_SUBPAT)
retval = subpatnum;
else
retval = pos.lnum;
if (flags & SP_SETPCMARK)
setpcmark();
curwin->w_cursor = pos;
if (match_pos != NULL)
{
/* Store the match cursor position */
match_pos->lnum = pos.lnum;
match_pos->col = pos.col + 1;
}
/* "/$" will put the cursor after the end of the line, may need to
* correct that here */
check_cursor();
}
/* If 'n' flag is used: restore cursor position. */
if (flags & SP_NOMOVE)
curwin->w_cursor = save_cursor;
else
curwin->w_set_curswant = TRUE;
theend:
p_ws = save_p_ws;
return retval;
}
#ifdef FEAT_FLOAT
/*
* round() is not in C90, use ceil() or floor() instead.
*/
float_T
vim_round(f)
float_T f;
{
return f > 0 ? floor(f + 0.5) : ceil(f - 0.5);
}
/*
* "round({float})" function
*/
static void
f_round(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = vim_round(f);
else
rettv->vval.v_float = 0.0;
}
#endif
/*
* "screenattr()" function
*/
static void
f_screenattr(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
int row;
int col;
int c;
row = get_tv_number_chk(&argvars[0], NULL) - 1;
col = get_tv_number_chk(&argvars[1], NULL) - 1;
if (row < 0 || row >= screen_Rows
|| col < 0 || col >= screen_Columns)
c = -1;
else
c = ScreenAttrs[LineOffset[row] + col];
rettv->vval.v_number = c;
}
/*
* "screenchar()" function
*/
static void
f_screenchar(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
int row;
int col;
int off;
int c;
row = get_tv_number_chk(&argvars[0], NULL) - 1;
col = get_tv_number_chk(&argvars[1], NULL) - 1;
if (row < 0 || row >= screen_Rows
|| col < 0 || col >= screen_Columns)
c = -1;
else
{
off = LineOffset[row] + col;
#ifdef FEAT_MBYTE
if (enc_utf8 && ScreenLinesUC[off] != 0)
c = ScreenLinesUC[off];
else
#endif
c = ScreenLines[off];
}
rettv->vval.v_number = c;
}
/*
* "screencol()" function
*
* First column is 1 to be consistent with virtcol().
*/
static void
f_screencol(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = screen_screencol() + 1;
}
/*
* "screenrow()" function
*/
static void
f_screenrow(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = screen_screenrow() + 1;
}
/*
* "search()" function
*/
static void
f_search(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int flags = 0;
rettv->vval.v_number = search_cmn(argvars, NULL, &flags);
}
/*
* "searchdecl()" function
*/
static void
f_searchdecl(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int locally = 1;
int thisblock = 0;
int error = FALSE;
char_u *name;
rettv->vval.v_number = 1; /* default: FAIL */
name = get_tv_string_chk(&argvars[0]);
if (argvars[1].v_type != VAR_UNKNOWN)
{
locally = get_tv_number_chk(&argvars[1], &error) == 0;
if (!error && argvars[2].v_type != VAR_UNKNOWN)
thisblock = get_tv_number_chk(&argvars[2], &error) != 0;
}
if (!error && name != NULL)
rettv->vval.v_number = find_decl(name, (int)STRLEN(name),
locally, thisblock, SEARCH_KEEP) == FAIL;
}
/*
* Used by searchpair() and searchpairpos()
*/
static int
searchpair_cmn(argvars, match_pos)
typval_T *argvars;
pos_T *match_pos;
{
char_u *spat, *mpat, *epat;
char_u *skip;
int save_p_ws = p_ws;
int dir;
int flags = 0;
char_u nbuf1[NUMBUFLEN];
char_u nbuf2[NUMBUFLEN];
char_u nbuf3[NUMBUFLEN];
int retval = 0; /* default: FAIL */
long lnum_stop = 0;
long time_limit = 0;
/* Get the three pattern arguments: start, middle, end. */
spat = get_tv_string_chk(&argvars[0]);
mpat = get_tv_string_buf_chk(&argvars[1], nbuf1);
epat = get_tv_string_buf_chk(&argvars[2], nbuf2);
if (spat == NULL || mpat == NULL || epat == NULL)
goto theend; /* type error */
/* Handle the optional fourth argument: flags */
dir = get_search_arg(&argvars[3], &flags); /* may set p_ws */
if (dir == 0)
goto theend;
/* Don't accept SP_END or SP_SUBPAT.
* Only one of the SP_NOMOVE or SP_SETPCMARK flags can be set.
*/
if ((flags & (SP_END | SP_SUBPAT)) != 0
|| ((flags & SP_NOMOVE) && (flags & SP_SETPCMARK)))
{
EMSG2(_(e_invarg2), get_tv_string(&argvars[3]));
goto theend;
}
/* Using 'r' implies 'W', otherwise it doesn't work. */
if (flags & SP_REPEAT)
p_ws = FALSE;
/* Optional fifth argument: skip expression */
if (argvars[3].v_type == VAR_UNKNOWN
|| argvars[4].v_type == VAR_UNKNOWN)
skip = (char_u *)"";
else
{
skip = get_tv_string_buf_chk(&argvars[4], nbuf3);
if (argvars[5].v_type != VAR_UNKNOWN)
{
lnum_stop = get_tv_number_chk(&argvars[5], NULL);
if (lnum_stop < 0)
goto theend;
#ifdef FEAT_RELTIME
if (argvars[6].v_type != VAR_UNKNOWN)
{
time_limit = get_tv_number_chk(&argvars[6], NULL);
if (time_limit < 0)
goto theend;
}
#endif
}
}
if (skip == NULL)
goto theend; /* type error */
retval = do_searchpair(spat, mpat, epat, dir, skip, flags,
match_pos, lnum_stop, time_limit);
theend:
p_ws = save_p_ws;
return retval;
}
/*
* "searchpair()" function
*/
static void
f_searchpair(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_number = searchpair_cmn(argvars, NULL);
}
/*
* "searchpairpos()" function
*/
static void
f_searchpairpos(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
pos_T match_pos;
int lnum = 0;
int col = 0;
if (rettv_list_alloc(rettv) == FAIL)
return;
if (searchpair_cmn(argvars, &match_pos) > 0)
{
lnum = match_pos.lnum;
col = match_pos.col;
}
list_append_number(rettv->vval.v_list, (varnumber_T)lnum);
list_append_number(rettv->vval.v_list, (varnumber_T)col);
}
/*
* Search for a start/middle/end thing.
* Used by searchpair(), see its documentation for the details.
* Returns 0 or -1 for no match,
*/
long
do_searchpair(spat, mpat, epat, dir, skip, flags, match_pos,
lnum_stop, time_limit)
char_u *spat; /* start pattern */
char_u *mpat; /* middle pattern */
char_u *epat; /* end pattern */
int dir; /* BACKWARD or FORWARD */
char_u *skip; /* skip expression */
int flags; /* SP_SETPCMARK and other SP_ values */
pos_T *match_pos;
linenr_T lnum_stop; /* stop at this line if not zero */
long time_limit UNUSED; /* stop after this many msec */
{
char_u *save_cpo;
char_u *pat, *pat2 = NULL, *pat3 = NULL;
long retval = 0;
pos_T pos;
pos_T firstpos;
pos_T foundpos;
pos_T save_cursor;
pos_T save_pos;
int n;
int r;
int nest = 1;
int err;
int options = SEARCH_KEEP;
proftime_T tm;
/* Make 'cpoptions' empty, the 'l' flag should not be used here. */
save_cpo = p_cpo;
p_cpo = empty_option;
#ifdef FEAT_RELTIME
/* Set the time limit, if there is one. */
profile_setlimit(time_limit, &tm);
#endif
/* Make two search patterns: start/end (pat2, for in nested pairs) and
* start/middle/end (pat3, for the top pair). */
pat2 = alloc((unsigned)(STRLEN(spat) + STRLEN(epat) + 15));
pat3 = alloc((unsigned)(STRLEN(spat) + STRLEN(mpat) + STRLEN(epat) + 23));
if (pat2 == NULL || pat3 == NULL)
goto theend;
sprintf((char *)pat2, "\\(%s\\m\\)\\|\\(%s\\m\\)", spat, epat);
if (*mpat == NUL)
STRCPY(pat3, pat2);
else
sprintf((char *)pat3, "\\(%s\\m\\)\\|\\(%s\\m\\)\\|\\(%s\\m\\)",
spat, epat, mpat);
if (flags & SP_START)
options |= SEARCH_START;
save_cursor = curwin->w_cursor;
pos = curwin->w_cursor;
clearpos(&firstpos);
clearpos(&foundpos);
pat = pat3;
for (;;)
{
n = searchit(curwin, curbuf, &pos, dir, pat, 1L,
options, RE_SEARCH, lnum_stop, &tm);
if (n == FAIL || (firstpos.lnum != 0 && equalpos(pos, firstpos)))
/* didn't find it or found the first match again: FAIL */
break;
if (firstpos.lnum == 0)
firstpos = pos;
if (equalpos(pos, foundpos))
{
/* Found the same position again. Can happen with a pattern that
* has "\zs" at the end and searching backwards. Advance one
* character and try again. */
if (dir == BACKWARD)
decl(&pos);
else
incl(&pos);
}
foundpos = pos;
/* clear the start flag to avoid getting stuck here */
options &= ~SEARCH_START;
/* If the skip pattern matches, ignore this match. */
if (*skip != NUL)
{
save_pos = curwin->w_cursor;
curwin->w_cursor = pos;
r = eval_to_bool(skip, &err, NULL, FALSE);
curwin->w_cursor = save_pos;
if (err)
{
/* Evaluating {skip} caused an error, break here. */
curwin->w_cursor = save_cursor;
retval = -1;
break;
}
if (r)
continue;
}
if ((dir == BACKWARD && n == 3) || (dir == FORWARD && n == 2))
{
/* Found end when searching backwards or start when searching
* forward: nested pair. */
++nest;
pat = pat2; /* nested, don't search for middle */
}
else
{
/* Found end when searching forward or start when searching
* backward: end of (nested) pair; or found middle in outer pair. */
if (--nest == 1)
pat = pat3; /* outer level, search for middle */
}
if (nest == 0)
{
/* Found the match: return matchcount or line number. */
if (flags & SP_RETCOUNT)
++retval;
else
retval = pos.lnum;
if (flags & SP_SETPCMARK)
setpcmark();
curwin->w_cursor = pos;
if (!(flags & SP_REPEAT))
break;
nest = 1; /* search for next unmatched */
}
}
if (match_pos != NULL)
{
/* Store the match cursor position */
match_pos->lnum = curwin->w_cursor.lnum;
match_pos->col = curwin->w_cursor.col + 1;
}
/* If 'n' flag is used or search failed: restore cursor position. */
if ((flags & SP_NOMOVE) || retval == 0)
curwin->w_cursor = save_cursor;
theend:
vim_free(pat2);
vim_free(pat3);
if (p_cpo == empty_option)
p_cpo = save_cpo;
else
/* Darn, evaluating the {skip} expression changed the value. */
free_string_option(save_cpo);
return retval;
}
/*
* "searchpos()" function
*/
static void
f_searchpos(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
pos_T match_pos;
int lnum = 0;
int col = 0;
int n;
int flags = 0;
if (rettv_list_alloc(rettv) == FAIL)
return;
n = search_cmn(argvars, &match_pos, &flags);
if (n > 0)
{
lnum = match_pos.lnum;
col = match_pos.col;
}
list_append_number(rettv->vval.v_list, (varnumber_T)lnum);
list_append_number(rettv->vval.v_list, (varnumber_T)col);
if (flags & SP_SUBPAT)
list_append_number(rettv->vval.v_list, (varnumber_T)n);
}
static void
f_server2client(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_CLIENTSERVER
char_u buf[NUMBUFLEN];
char_u *server = get_tv_string_chk(&argvars[0]);
char_u *reply = get_tv_string_buf_chk(&argvars[1], buf);
rettv->vval.v_number = -1;
if (server == NULL || reply == NULL)
return;
if (check_restricted() || check_secure())
return;
# ifdef FEAT_X11
if (check_connection() == FAIL)
return;
# endif
if (serverSendReply(server, reply) < 0)
{
EMSG(_("E258: Unable to send to client"));
return;
}
rettv->vval.v_number = 0;
#else
rettv->vval.v_number = -1;
#endif
}
static void
f_serverlist(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
char_u *r = NULL;
#ifdef FEAT_CLIENTSERVER
# ifdef WIN32
r = serverGetVimNames();
# else
make_connection();
if (X_DISPLAY != NULL)
r = serverGetVimNames(X_DISPLAY);
# endif
#endif
rettv->v_type = VAR_STRING;
rettv->vval.v_string = r;
}
/*
* "setbufvar()" function
*/
static void
f_setbufvar(argvars, rettv)
typval_T *argvars;
typval_T *rettv UNUSED;
{
buf_T *buf;
aco_save_T aco;
char_u *varname, *bufvarname;
typval_T *varp;
char_u nbuf[NUMBUFLEN];
if (check_restricted() || check_secure())
return;
(void)get_tv_number(&argvars[0]); /* issue errmsg if type error */
varname = get_tv_string_chk(&argvars[1]);
buf = get_buf_tv(&argvars[0], FALSE);
varp = &argvars[2];
if (buf != NULL && varname != NULL && varp != NULL)
{
/* set curbuf to be our buf, temporarily */
aucmd_prepbuf(&aco, buf);
if (*varname == '&')
{
long numval;
char_u *strval;
int error = FALSE;
++varname;
numval = get_tv_number_chk(varp, &error);
strval = get_tv_string_buf_chk(varp, nbuf);
if (!error && strval != NULL)
set_option_value(varname, numval, strval, OPT_LOCAL);
}
else
{
bufvarname = alloc((unsigned)STRLEN(varname) + 3);
if (bufvarname != NULL)
{
STRCPY(bufvarname, "b:");
STRCPY(bufvarname + 2, varname);
set_var(bufvarname, varp, TRUE);
vim_free(bufvarname);
}
}
/* reset notion of buffer */
aucmd_restbuf(&aco);
}
}
static void
f_setcharsearch(argvars, rettv)
typval_T *argvars;
typval_T *rettv UNUSED;
{
dict_T *d;
dictitem_T *di;
char_u *csearch;
if (argvars[0].v_type != VAR_DICT)
{
EMSG(_(e_dictreq));
return;
}
if ((d = argvars[0].vval.v_dict) != NULL)
{
csearch = get_dict_string(d, (char_u *)"char", FALSE);
if (csearch != NULL)
{
#ifdef FEAT_MBYTE
if (enc_utf8)
{
int pcc[MAX_MCO];
int c = utfc_ptr2char(csearch, pcc);
set_last_csearch(c, csearch, utfc_ptr2len(csearch));
}
else
#endif
set_last_csearch(PTR2CHAR(csearch),
csearch, MB_PTR2LEN(csearch));
}
di = dict_find(d, (char_u *)"forward", -1);
if (di != NULL)
set_csearch_direction(get_tv_number(&di->di_tv)
? FORWARD : BACKWARD);
di = dict_find(d, (char_u *)"until", -1);
if (di != NULL)
set_csearch_until(!!get_tv_number(&di->di_tv));
}
}
/*
* "setcmdpos()" function
*/
static void
f_setcmdpos(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int pos = (int)get_tv_number(&argvars[0]) - 1;
if (pos >= 0)
rettv->vval.v_number = set_cmdline_pos(pos);
}
/*
* "setline()" function
*/
static void
f_setline(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
linenr_T lnum;
char_u *line = NULL;
list_T *l = NULL;
listitem_T *li = NULL;
long added = 0;
linenr_T lcount = curbuf->b_ml.ml_line_count;
lnum = get_tv_lnum(&argvars[0]);
if (argvars[1].v_type == VAR_LIST)
{
l = argvars[1].vval.v_list;
li = l->lv_first;
}
else
line = get_tv_string_chk(&argvars[1]);
/* default result is zero == OK */
for (;;)
{
if (l != NULL)
{
/* list argument, get next string */
if (li == NULL)
break;
line = get_tv_string_chk(&li->li_tv);
li = li->li_next;
}
rettv->vval.v_number = 1; /* FAIL */
if (line == NULL || lnum < 1 || lnum > curbuf->b_ml.ml_line_count + 1)
break;
/* When coming here from Insert mode, sync undo, so that this can be
* undone separately from what was previously inserted. */
if (u_sync_once == 2)
{
u_sync_once = 1; /* notify that u_sync() was called */
u_sync(TRUE);
}
if (lnum <= curbuf->b_ml.ml_line_count)
{
/* existing line, replace it */
if (u_savesub(lnum) == OK && ml_replace(lnum, line, TRUE) == OK)
{
changed_bytes(lnum, 0);
if (lnum == curwin->w_cursor.lnum)
check_cursor_col();
rettv->vval.v_number = 0; /* OK */
}
}
else if (added > 0 || u_save(lnum - 1, lnum) == OK)
{
/* lnum is one past the last line, append the line */
++added;
if (ml_append(lnum - 1, line, (colnr_T)0, FALSE) == OK)
rettv->vval.v_number = 0; /* OK */
}
if (l == NULL) /* only one string argument */
break;
++lnum;
}
if (added > 0)
appended_lines_mark(lcount, added);
}
static void set_qf_ll_list __ARGS((win_T *wp, typval_T *list_arg, typval_T *action_arg, typval_T *rettv));
/*
* Used by "setqflist()" and "setloclist()" functions
*/
static void
set_qf_ll_list(wp, list_arg, action_arg, rettv)
win_T *wp UNUSED;
typval_T *list_arg UNUSED;
typval_T *action_arg UNUSED;
typval_T *rettv;
{
#ifdef FEAT_QUICKFIX
char_u *act;
int action = ' ';
#endif
rettv->vval.v_number = -1;
#ifdef FEAT_QUICKFIX
if (list_arg->v_type != VAR_LIST)
EMSG(_(e_listreq));
else
{
list_T *l = list_arg->vval.v_list;
if (action_arg->v_type == VAR_STRING)
{
act = get_tv_string_chk(action_arg);
if (act == NULL)
return; /* type error; errmsg already given */
if (*act == 'a' || *act == 'r')
action = *act;
}
if (l != NULL && set_errorlist(wp, l, action,
(char_u *)(wp == NULL ? "setqflist()" : "setloclist()")) == OK)
rettv->vval.v_number = 0;
}
#endif
}
/*
* "setloclist()" function
*/
static void
f_setloclist(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
win_T *win;
rettv->vval.v_number = -1;
win = find_win_by_nr(&argvars[0], NULL);
if (win != NULL)
set_qf_ll_list(win, &argvars[1], &argvars[2], rettv);
}
/*
* "setmatches()" function
*/
static void
f_setmatches(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_SEARCH_EXTRA
list_T *l;
listitem_T *li;
dict_T *d;
list_T *s = NULL;
rettv->vval.v_number = -1;
if (argvars[0].v_type != VAR_LIST)
{
EMSG(_(e_listreq));
return;
}
if ((l = argvars[0].vval.v_list) != NULL)
{
/* To some extent make sure that we are dealing with a list from
* "getmatches()". */
li = l->lv_first;
while (li != NULL)
{
if (li->li_tv.v_type != VAR_DICT
|| (d = li->li_tv.vval.v_dict) == NULL)
{
EMSG(_(e_invarg));
return;
}
if (!(dict_find(d, (char_u *)"group", -1) != NULL
&& (dict_find(d, (char_u *)"pattern", -1) != NULL
|| dict_find(d, (char_u *)"pos1", -1) != NULL)
&& dict_find(d, (char_u *)"priority", -1) != NULL
&& dict_find(d, (char_u *)"id", -1) != NULL))
{
EMSG(_(e_invarg));
return;
}
li = li->li_next;
}
clear_matches(curwin);
li = l->lv_first;
while (li != NULL)
{
int i = 0;
char_u buf[5];
dictitem_T *di;
char_u *group;
int priority;
int id;
char_u *conceal;
d = li->li_tv.vval.v_dict;
if (dict_find(d, (char_u *)"pattern", -1) == NULL)
{
if (s == NULL)
{
s = list_alloc();
if (s == NULL)
return;
}
/* match from matchaddpos() */
for (i = 1; i < 9; i++)
{
sprintf((char *)buf, (char *)"pos%d", i);
if ((di = dict_find(d, (char_u *)buf, -1)) != NULL)
{
if (di->di_tv.v_type != VAR_LIST)
return;
list_append_tv(s, &di->di_tv);
s->lv_refcount++;
}
else
break;
}
}
group = get_dict_string(d, (char_u *)"group", FALSE);
priority = (int)get_dict_number(d, (char_u *)"priority");
id = (int)get_dict_number(d, (char_u *)"id");
conceal = dict_find(d, (char_u *)"conceal", -1) != NULL
? get_dict_string(d, (char_u *)"conceal", FALSE)
: NULL;
if (i == 0)
{
match_add(curwin, group,
get_dict_string(d, (char_u *)"pattern", FALSE),
priority, id, NULL, conceal);
}
else
{
match_add(curwin, group, NULL, priority, id, s, conceal);
list_unref(s);
s = NULL;
}
li = li->li_next;
}
rettv->vval.v_number = 0;
}
#endif
}
/*
* "setpos()" function
*/
static void
f_setpos(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
pos_T pos;
int fnum;
char_u *name;
colnr_T curswant = -1;
rettv->vval.v_number = -1;
name = get_tv_string_chk(argvars);
if (name != NULL)
{
if (list2fpos(&argvars[1], &pos, &fnum, &curswant) == OK)
{
if (--pos.col < 0)
pos.col = 0;
if (name[0] == '.' && name[1] == NUL)
{
/* set cursor */
if (fnum == curbuf->b_fnum)
{
curwin->w_cursor = pos;
if (curswant >= 0)
{
curwin->w_curswant = curswant - 1;
curwin->w_set_curswant = FALSE;
}
check_cursor();
rettv->vval.v_number = 0;
}
else
EMSG(_(e_invarg));
}
else if (name[0] == '\'' && name[1] != NUL && name[2] == NUL)
{
/* set mark */
if (setmark_pos(name[1], &pos, fnum) == OK)
rettv->vval.v_number = 0;
}
else
EMSG(_(e_invarg));
}
}
}
/*
* "setqflist()" function
*/
static void
f_setqflist(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
set_qf_ll_list(NULL, &argvars[0], &argvars[1], rettv);
}
/*
* "setreg()" function
*/
static void
f_setreg(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int regname;
char_u *strregname;
char_u *stropt;
char_u *strval;
int append;
char_u yank_type;
long block_len;
block_len = -1;
yank_type = MAUTO;
append = FALSE;
strregname = get_tv_string_chk(argvars);
rettv->vval.v_number = 1; /* FAIL is default */
if (strregname == NULL)
return; /* type error; errmsg already given */
regname = *strregname;
if (regname == 0 || regname == '@')
regname = '"';
if (argvars[2].v_type != VAR_UNKNOWN)
{
stropt = get_tv_string_chk(&argvars[2]);
if (stropt == NULL)
return; /* type error */
for (; *stropt != NUL; ++stropt)
switch (*stropt)
{
case 'a': case 'A': /* append */
append = TRUE;
break;
case 'v': case 'c': /* character-wise selection */
yank_type = MCHAR;
break;
case 'V': case 'l': /* line-wise selection */
yank_type = MLINE;
break;
case 'b': case Ctrl_V: /* block-wise selection */
yank_type = MBLOCK;
if (VIM_ISDIGIT(stropt[1]))
{
++stropt;
block_len = getdigits(&stropt) - 1;
--stropt;
}
break;
}
}
if (argvars[1].v_type == VAR_LIST)
{
char_u **lstval;
char_u **allocval;
char_u buf[NUMBUFLEN];
char_u **curval;
char_u **curallocval;
int len = argvars[1].vval.v_list->lv_len;
listitem_T *li;
/* First half: use for pointers to result lines; second half: use for
* pointers to allocated copies. */
lstval = (char_u **)alloc(sizeof(char_u *) * ((len + 1) * 2));
if (lstval == NULL)
return;
curval = lstval;
allocval = lstval + len + 2;
curallocval = allocval;
for (li = argvars[1].vval.v_list->lv_first; li != NULL;
li = li->li_next)
{
strval = get_tv_string_buf_chk(&li->li_tv, buf);
if (strval == NULL)
goto free_lstval;
if (strval == buf)
{
/* Need to make a copy, next get_tv_string_buf_chk() will
* overwrite the string. */
strval = vim_strsave(buf);
if (strval == NULL)
goto free_lstval;
*curallocval++ = strval;
}
*curval++ = strval;
}
*curval++ = NULL;
write_reg_contents_lst(regname, lstval, -1,
append, yank_type, block_len);
free_lstval:
while (curallocval > allocval)
vim_free(*--curallocval);
vim_free(lstval);
}
else
{
strval = get_tv_string_chk(&argvars[1]);
if (strval == NULL)
return;
write_reg_contents_ex(regname, strval, -1,
append, yank_type, block_len);
}
rettv->vval.v_number = 0;
}
/*
* "settabvar()" function
*/
static void
f_settabvar(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
#ifdef FEAT_WINDOWS
tabpage_T *save_curtab;
tabpage_T *tp;
#endif
char_u *varname, *tabvarname;
typval_T *varp;
rettv->vval.v_number = 0;
if (check_restricted() || check_secure())
return;
#ifdef FEAT_WINDOWS
tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL));
#endif
varname = get_tv_string_chk(&argvars[1]);
varp = &argvars[2];
if (varname != NULL && varp != NULL
#ifdef FEAT_WINDOWS
&& tp != NULL
#endif
)
{
#ifdef FEAT_WINDOWS
save_curtab = curtab;
goto_tabpage_tp(tp, FALSE, FALSE);
#endif
tabvarname = alloc((unsigned)STRLEN(varname) + 3);
if (tabvarname != NULL)
{
STRCPY(tabvarname, "t:");
STRCPY(tabvarname + 2, varname);
set_var(tabvarname, varp, TRUE);
vim_free(tabvarname);
}
#ifdef FEAT_WINDOWS
/* Restore current tabpage */
if (valid_tabpage(save_curtab))
goto_tabpage_tp(save_curtab, FALSE, FALSE);
#endif
}
}
/*
* "settabwinvar()" function
*/
static void
f_settabwinvar(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
setwinvar(argvars, rettv, 1);
}
/*
* "setwinvar()" function
*/
static void
f_setwinvar(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
setwinvar(argvars, rettv, 0);
}
/*
* "setwinvar()" and "settabwinvar()" functions
*/
static void
setwinvar(argvars, rettv, off)
typval_T *argvars;
typval_T *rettv UNUSED;
int off;
{
win_T *win;
#ifdef FEAT_WINDOWS
win_T *save_curwin;
tabpage_T *save_curtab;
int need_switch_win;
#endif
char_u *varname, *winvarname;
typval_T *varp;
char_u nbuf[NUMBUFLEN];
tabpage_T *tp = NULL;
if (check_restricted() || check_secure())
return;
#ifdef FEAT_WINDOWS
if (off == 1)
tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL));
else
tp = curtab;
#endif
win = find_win_by_nr(&argvars[off], tp);
varname = get_tv_string_chk(&argvars[off + 1]);
varp = &argvars[off + 2];
if (win != NULL && varname != NULL && varp != NULL)
{
#ifdef FEAT_WINDOWS
need_switch_win = !(tp == curtab && win == curwin);
if (!need_switch_win
|| switch_win(&save_curwin, &save_curtab, win, tp, TRUE) == OK)
#endif
{
if (*varname == '&')
{
long numval;
char_u *strval;
int error = FALSE;
++varname;
numval = get_tv_number_chk(varp, &error);
strval = get_tv_string_buf_chk(varp, nbuf);
if (!error && strval != NULL)
set_option_value(varname, numval, strval, OPT_LOCAL);
}
else
{
winvarname = alloc((unsigned)STRLEN(varname) + 3);
if (winvarname != NULL)
{
STRCPY(winvarname, "w:");
STRCPY(winvarname + 2, varname);
set_var(winvarname, varp, TRUE);
vim_free(winvarname);
}
}
}
#ifdef FEAT_WINDOWS
if (need_switch_win)
restore_win(save_curwin, save_curtab, TRUE);
#endif
}
}
#ifdef FEAT_CRYPT
/*
* "sha256({string})" function
*/
static void
f_sha256(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *p;
p = get_tv_string(&argvars[0]);
rettv->vval.v_string = vim_strsave(
sha256_bytes(p, (int)STRLEN(p), NULL, 0));
rettv->v_type = VAR_STRING;
}
#endif /* FEAT_CRYPT */
/*
* "shellescape({string})" function
*/
static void
f_shellescape(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_string = vim_strsave_shellescape(
get_tv_string(&argvars[0]), non_zero_arg(&argvars[1]), TRUE);
rettv->v_type = VAR_STRING;
}
/*
* shiftwidth() function
*/
static void
f_shiftwidth(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->vval.v_number = get_sw_value(curbuf);
}
/*
* "simplify()" function
*/
static void
f_simplify(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *p;
p = get_tv_string(&argvars[0]);
rettv->vval.v_string = vim_strsave(p);
simplify_filename(rettv->vval.v_string); /* simplify in place */
rettv->v_type = VAR_STRING;
}
#ifdef FEAT_FLOAT
/*
* "sin()" function
*/
static void
f_sin(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = sin(f);
else
rettv->vval.v_float = 0.0;
}
/*
* "sinh()" function
*/
static void
f_sinh(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = sinh(f);
else
rettv->vval.v_float = 0.0;
}
#endif
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
item_compare __ARGS((const void *s1, const void *s2));
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
item_compare2 __ARGS((const void *s1, const void *s2));
/* struct used in the array that's given to qsort() */
typedef struct
{
listitem_T *item;
int idx;
} sortItem_T;
static int item_compare_ic;
static int item_compare_numeric;
static int item_compare_numbers;
#ifdef FEAT_FLOAT
static int item_compare_float;
#endif
static char_u *item_compare_func;
static dict_T *item_compare_selfdict;
static int item_compare_func_err;
static int item_compare_keep_zero;
static void do_sort_uniq __ARGS((typval_T *argvars, typval_T *rettv, int sort));
#define ITEM_COMPARE_FAIL 999
/*
* Compare functions for f_sort() and f_uniq() below.
*/
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
item_compare(s1, s2)
const void *s1;
const void *s2;
{
sortItem_T *si1, *si2;
typval_T *tv1, *tv2;
char_u *p1, *p2;
char_u *tofree1 = NULL, *tofree2 = NULL;
int res;
char_u numbuf1[NUMBUFLEN];
char_u numbuf2[NUMBUFLEN];
si1 = (sortItem_T *)s1;
si2 = (sortItem_T *)s2;
tv1 = &si1->item->li_tv;
tv2 = &si2->item->li_tv;
if (item_compare_numbers)
{
long v1 = get_tv_number(tv1);
long v2 = get_tv_number(tv2);
return v1 == v2 ? 0 : v1 > v2 ? 1 : -1;
}
#ifdef FEAT_FLOAT
if (item_compare_float)
{
float_T v1 = get_tv_float(tv1);
float_T v2 = get_tv_float(tv2);
return v1 == v2 ? 0 : v1 > v2 ? 1 : -1;
}
#endif
/* tv2string() puts quotes around a string and allocates memory. Don't do
* that for string variables. Use a single quote when comparing with a
* non-string to do what the docs promise. */
if (tv1->v_type == VAR_STRING)
{
if (tv2->v_type != VAR_STRING || item_compare_numeric)
p1 = (char_u *)"'";
else
p1 = tv1->vval.v_string;
}
else
p1 = tv2string(tv1, &tofree1, numbuf1, 0);
if (tv2->v_type == VAR_STRING)
{
if (tv1->v_type != VAR_STRING || item_compare_numeric)
p2 = (char_u *)"'";
else
p2 = tv2->vval.v_string;
}
else
p2 = tv2string(tv2, &tofree2, numbuf2, 0);
if (p1 == NULL)
p1 = (char_u *)"";
if (p2 == NULL)
p2 = (char_u *)"";
if (!item_compare_numeric)
{
if (item_compare_ic)
res = STRICMP(p1, p2);
else
res = STRCMP(p1, p2);
}
else
{
double n1, n2;
n1 = strtod((char *)p1, (char **)&p1);
n2 = strtod((char *)p2, (char **)&p2);
res = n1 == n2 ? 0 : n1 > n2 ? 1 : -1;
}
/* When the result would be zero, compare the item indexes. Makes the
* sort stable. */
if (res == 0 && !item_compare_keep_zero)
res = si1->idx > si2->idx ? 1 : -1;
vim_free(tofree1);
vim_free(tofree2);
return res;
}
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
item_compare2(s1, s2)
const void *s1;
const void *s2;
{
sortItem_T *si1, *si2;
int res;
typval_T rettv;
typval_T argv[3];
int dummy;
/* shortcut after failure in previous call; compare all items equal */
if (item_compare_func_err)
return 0;
si1 = (sortItem_T *)s1;
si2 = (sortItem_T *)s2;
/* Copy the values. This is needed to be able to set v_lock to VAR_FIXED
* in the copy without changing the original list items. */
copy_tv(&si1->item->li_tv, &argv[0]);
copy_tv(&si2->item->li_tv, &argv[1]);
rettv.v_type = VAR_UNKNOWN; /* clear_tv() uses this */
res = call_func(item_compare_func, (int)STRLEN(item_compare_func),
&rettv, 2, argv, 0L, 0L, &dummy, TRUE,
item_compare_selfdict);
clear_tv(&argv[0]);
clear_tv(&argv[1]);
if (res == FAIL)
res = ITEM_COMPARE_FAIL;
else
res = get_tv_number_chk(&rettv, &item_compare_func_err);
if (item_compare_func_err)
res = ITEM_COMPARE_FAIL; /* return value has wrong type */
clear_tv(&rettv);
/* When the result would be zero, compare the pointers themselves. Makes
* the sort stable. */
if (res == 0 && !item_compare_keep_zero)
res = si1->idx > si2->idx ? 1 : -1;
return res;
}
/*
* "sort({list})" function
*/
static void
do_sort_uniq(argvars, rettv, sort)
typval_T *argvars;
typval_T *rettv;
int sort;
{
list_T *l;
listitem_T *li;
sortItem_T *ptrs;
long len;
long i;
if (argvars[0].v_type != VAR_LIST)
EMSG2(_(e_listarg), sort ? "sort()" : "uniq()");
else
{
l = argvars[0].vval.v_list;
if (l == NULL || tv_check_lock(l->lv_lock,
(char_u *)(sort ? N_("sort() argument") : N_("uniq() argument")),
TRUE))
return;
rettv->vval.v_list = l;
rettv->v_type = VAR_LIST;
++l->lv_refcount;
len = list_len(l);
if (len <= 1)
return; /* short list sorts pretty quickly */
item_compare_ic = FALSE;
item_compare_numeric = FALSE;
item_compare_numbers = FALSE;
#ifdef FEAT_FLOAT
item_compare_float = FALSE;
#endif
item_compare_func = NULL;
item_compare_selfdict = NULL;
if (argvars[1].v_type != VAR_UNKNOWN)
{
/* optional second argument: {func} */
if (argvars[1].v_type == VAR_FUNC)
item_compare_func = argvars[1].vval.v_string;
else
{
int error = FALSE;
i = get_tv_number_chk(&argvars[1], &error);
if (error)
return; /* type error; errmsg already given */
if (i == 1)
item_compare_ic = TRUE;
else
item_compare_func = get_tv_string(&argvars[1]);
if (item_compare_func != NULL)
{
if (STRCMP(item_compare_func, "n") == 0)
{
item_compare_func = NULL;
item_compare_numeric = TRUE;
}
else if (STRCMP(item_compare_func, "N") == 0)
{
item_compare_func = NULL;
item_compare_numbers = TRUE;
}
#ifdef FEAT_FLOAT
else if (STRCMP(item_compare_func, "f") == 0)
{
item_compare_func = NULL;
item_compare_float = TRUE;
}
#endif
else if (STRCMP(item_compare_func, "i") == 0)
{
item_compare_func = NULL;
item_compare_ic = TRUE;
}
}
}
if (argvars[2].v_type != VAR_UNKNOWN)
{
/* optional third argument: {dict} */
if (argvars[2].v_type != VAR_DICT)
{
EMSG(_(e_dictreq));
return;
}
item_compare_selfdict = argvars[2].vval.v_dict;
}
}
/* Make an array with each entry pointing to an item in the List. */
ptrs = (sortItem_T *)alloc((int)(len * sizeof(sortItem_T)));
if (ptrs == NULL)
return;
i = 0;
if (sort)
{
/* sort(): ptrs will be the list to sort */
for (li = l->lv_first; li != NULL; li = li->li_next)
{
ptrs[i].item = li;
ptrs[i].idx = i;
++i;
}
item_compare_func_err = FALSE;
item_compare_keep_zero = FALSE;
/* test the compare function */
if (item_compare_func != NULL
&& item_compare2((void *)&ptrs[0], (void *)&ptrs[1])
== ITEM_COMPARE_FAIL)
EMSG(_("E702: Sort compare function failed"));
else
{
/* Sort the array with item pointers. */
qsort((void *)ptrs, (size_t)len, sizeof(sortItem_T),
item_compare_func == NULL ? item_compare : item_compare2);
if (!item_compare_func_err)
{
/* Clear the List and append the items in sorted order. */
l->lv_first = l->lv_last = l->lv_idx_item = NULL;
l->lv_len = 0;
for (i = 0; i < len; ++i)
list_append(l, ptrs[i].item);
}
}
}
else
{
int (*item_compare_func_ptr)__ARGS((const void *, const void *));
/* f_uniq(): ptrs will be a stack of items to remove */
item_compare_func_err = FALSE;
item_compare_keep_zero = TRUE;
item_compare_func_ptr = item_compare_func
? item_compare2 : item_compare;
for (li = l->lv_first; li != NULL && li->li_next != NULL;
li = li->li_next)
{
if (item_compare_func_ptr((void *)&li, (void *)&li->li_next)
== 0)
ptrs[i++].item = li;
if (item_compare_func_err)
{
EMSG(_("E882: Uniq compare function failed"));
break;
}
}
if (!item_compare_func_err)
{
while (--i >= 0)
{
li = ptrs[i].item->li_next;
ptrs[i].item->li_next = li->li_next;
if (li->li_next != NULL)
li->li_next->li_prev = ptrs[i].item;
else
l->lv_last = ptrs[i].item;
list_fix_watch(l, li);
listitem_free(li);
l->lv_len--;
}
}
}
vim_free(ptrs);
}
}
/*
* "sort({list})" function
*/
static void
f_sort(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
do_sort_uniq(argvars, rettv, TRUE);
}
/*
* "uniq({list})" function
*/
static void
f_uniq(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
do_sort_uniq(argvars, rettv, FALSE);
}
/*
* "soundfold({word})" function
*/
static void
f_soundfold(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *s;
rettv->v_type = VAR_STRING;
s = get_tv_string(&argvars[0]);
#ifdef FEAT_SPELL
rettv->vval.v_string = eval_soundfold(s);
#else
rettv->vval.v_string = vim_strsave(s);
#endif
}
/*
* "spellbadword()" function
*/
static void
f_spellbadword(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
char_u *word = (char_u *)"";
hlf_T attr = HLF_COUNT;
int len = 0;
if (rettv_list_alloc(rettv) == FAIL)
return;
#ifdef FEAT_SPELL
if (argvars[0].v_type == VAR_UNKNOWN)
{
/* Find the start and length of the badly spelled word. */
len = spell_move_to(curwin, FORWARD, TRUE, TRUE, &attr);
if (len != 0)
word = ml_get_cursor();
}
else if (curwin->w_p_spell && *curbuf->b_s.b_p_spl != NUL)
{
char_u *str = get_tv_string_chk(&argvars[0]);
int capcol = -1;
if (str != NULL)
{
/* Check the argument for spelling. */
while (*str != NUL)
{
len = spell_check(curwin, str, &attr, &capcol, FALSE);
if (attr != HLF_COUNT)
{
word = str;
break;
}
str += len;
}
}
}
#endif
list_append_string(rettv->vval.v_list, word, len);
list_append_string(rettv->vval.v_list, (char_u *)(
attr == HLF_SPB ? "bad" :
attr == HLF_SPR ? "rare" :
attr == HLF_SPL ? "local" :
attr == HLF_SPC ? "caps" :
""), -1);
}
/*
* "spellsuggest()" function
*/
static void
f_spellsuggest(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_SPELL
char_u *str;
int typeerr = FALSE;
int maxcount;
garray_T ga;
int i;
listitem_T *li;
int need_capital = FALSE;
#endif
if (rettv_list_alloc(rettv) == FAIL)
return;
#ifdef FEAT_SPELL
if (curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL)
{
str = get_tv_string(&argvars[0]);
if (argvars[1].v_type != VAR_UNKNOWN)
{
maxcount = get_tv_number_chk(&argvars[1], &typeerr);
if (maxcount <= 0)
return;
if (argvars[2].v_type != VAR_UNKNOWN)
{
need_capital = get_tv_number_chk(&argvars[2], &typeerr);
if (typeerr)
return;
}
}
else
maxcount = 25;
spell_suggest_list(&ga, str, maxcount, need_capital, FALSE);
for (i = 0; i < ga.ga_len; ++i)
{
str = ((char_u **)ga.ga_data)[i];
li = listitem_alloc();
if (li == NULL)
vim_free(str);
else
{
li->li_tv.v_type = VAR_STRING;
li->li_tv.v_lock = 0;
li->li_tv.vval.v_string = str;
list_append(rettv->vval.v_list, li);
}
}
ga_clear(&ga);
}
#endif
}
static void
f_split(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *str;
char_u *end;
char_u *pat = NULL;
regmatch_T regmatch;
char_u patbuf[NUMBUFLEN];
char_u *save_cpo;
int match;
colnr_T col = 0;
int keepempty = FALSE;
int typeerr = FALSE;
/* Make 'cpoptions' empty, the 'l' flag should not be used here. */
save_cpo = p_cpo;
p_cpo = (char_u *)"";
str = get_tv_string(&argvars[0]);
if (argvars[1].v_type != VAR_UNKNOWN)
{
pat = get_tv_string_buf_chk(&argvars[1], patbuf);
if (pat == NULL)
typeerr = TRUE;
if (argvars[2].v_type != VAR_UNKNOWN)
keepempty = get_tv_number_chk(&argvars[2], &typeerr);
}
if (pat == NULL || *pat == NUL)
pat = (char_u *)"[\\x01- ]\\+";
if (rettv_list_alloc(rettv) == FAIL)
return;
if (typeerr)
return;
regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
if (regmatch.regprog != NULL)
{
regmatch.rm_ic = FALSE;
while (*str != NUL || keepempty)
{
if (*str == NUL)
match = FALSE; /* empty item at the end */
else
match = vim_regexec_nl(&regmatch, str, col);
if (match)
end = regmatch.startp[0];
else
end = str + STRLEN(str);
if (keepempty || end > str || (rettv->vval.v_list->lv_len > 0
&& *str != NUL && match && end < regmatch.endp[0]))
{
if (list_append_string(rettv->vval.v_list, str,
(int)(end - str)) == FAIL)
break;
}
if (!match)
break;
/* Advance to just after the match. */
if (regmatch.endp[0] > str)
col = 0;
else
{
/* Don't get stuck at the same match. */
#ifdef FEAT_MBYTE
col = (*mb_ptr2len)(regmatch.endp[0]);
#else
col = 1;
#endif
}
str = regmatch.endp[0];
}
vim_regfree(regmatch.regprog);
}
p_cpo = save_cpo;
}
#ifdef FEAT_FLOAT
/*
* "sqrt()" function
*/
static void
f_sqrt(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = sqrt(f);
else
rettv->vval.v_float = 0.0;
}
/*
* "str2float()" function
*/
static void
f_str2float(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *p = skipwhite(get_tv_string(&argvars[0]));
if (*p == '+')
p = skipwhite(p + 1);
(void)string2float(p, &rettv->vval.v_float);
rettv->v_type = VAR_FLOAT;
}
#endif
/*
* "str2nr()" function
*/
static void
f_str2nr(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int base = 10;
char_u *p;
long n;
int what;
if (argvars[1].v_type != VAR_UNKNOWN)
{
base = get_tv_number(&argvars[1]);
if (base != 2 && base != 8 && base != 10 && base != 16)
{
EMSG(_(e_invarg));
return;
}
}
p = skipwhite(get_tv_string(&argvars[0]));
if (*p == '+')
p = skipwhite(p + 1);
switch (base)
{
case 2: what = STR2NR_BIN + STR2NR_FORCE; break;
case 8: what = STR2NR_OCT + STR2NR_FORCE; break;
case 16: what = STR2NR_HEX + STR2NR_FORCE; break;
default: what = 0;
}
vim_str2nr(p, NULL, NULL, what, &n, NULL, 0);
rettv->vval.v_number = n;
}
#ifdef HAVE_STRFTIME
/*
* "strftime({format}[, {time}])" function
*/
static void
f_strftime(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u result_buf[256];
struct tm *curtime;
time_t seconds;
char_u *p;
rettv->v_type = VAR_STRING;
p = get_tv_string(&argvars[0]);
if (argvars[1].v_type == VAR_UNKNOWN)
seconds = time(NULL);
else
seconds = (time_t)get_tv_number(&argvars[1]);
curtime = localtime(&seconds);
/* MSVC returns NULL for an invalid value of seconds. */
if (curtime == NULL)
rettv->vval.v_string = vim_strsave((char_u *)_("(Invalid)"));
else
{
# ifdef FEAT_MBYTE
vimconv_T conv;
char_u *enc;
conv.vc_type = CONV_NONE;
enc = enc_locale();
convert_setup(&conv, p_enc, enc);
if (conv.vc_type != CONV_NONE)
p = string_convert(&conv, p, NULL);
# endif
if (p != NULL)
(void)strftime((char *)result_buf, sizeof(result_buf),
(char *)p, curtime);
else
result_buf[0] = NUL;
# ifdef FEAT_MBYTE
if (conv.vc_type != CONV_NONE)
vim_free(p);
convert_setup(&conv, enc, p_enc);
if (conv.vc_type != CONV_NONE)
rettv->vval.v_string = string_convert(&conv, result_buf, NULL);
else
# endif
rettv->vval.v_string = vim_strsave(result_buf);
# ifdef FEAT_MBYTE
/* Release conversion descriptors */
convert_setup(&conv, NULL, NULL);
vim_free(enc);
# endif
}
}
#endif
/*
* "stridx()" function
*/
static void
f_stridx(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u buf[NUMBUFLEN];
char_u *needle;
char_u *haystack;
char_u *save_haystack;
char_u *pos;
int start_idx;
needle = get_tv_string_chk(&argvars[1]);
save_haystack = haystack = get_tv_string_buf_chk(&argvars[0], buf);
rettv->vval.v_number = -1;
if (needle == NULL || haystack == NULL)
return; /* type error; errmsg already given */
if (argvars[2].v_type != VAR_UNKNOWN)
{
int error = FALSE;
start_idx = get_tv_number_chk(&argvars[2], &error);
if (error || start_idx >= (int)STRLEN(haystack))
return;
if (start_idx >= 0)
haystack += start_idx;
}
pos = (char_u *)strstr((char *)haystack, (char *)needle);
if (pos != NULL)
rettv->vval.v_number = (varnumber_T)(pos - save_haystack);
}
/*
* "string()" function
*/
static void
f_string(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *tofree;
char_u numbuf[NUMBUFLEN];
rettv->v_type = VAR_STRING;
rettv->vval.v_string = tv2string(&argvars[0], &tofree, numbuf, 0);
/* Make a copy if we have a value but it's not in allocated memory. */
if (rettv->vval.v_string != NULL && tofree == NULL)
rettv->vval.v_string = vim_strsave(rettv->vval.v_string);
}
/*
* "strlen()" function
*/
static void
f_strlen(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_number = (varnumber_T)(STRLEN(
get_tv_string(&argvars[0])));
}
/*
* "strchars()" function
*/
static void
f_strchars(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *s = get_tv_string(&argvars[0]);
int skipcc = 0;
#ifdef FEAT_MBYTE
varnumber_T len = 0;
int (*func_mb_ptr2char_adv)(char_u **pp);
#endif
if (argvars[1].v_type != VAR_UNKNOWN)
skipcc = get_tv_number_chk(&argvars[1], NULL);
if (skipcc < 0 || skipcc > 1)
EMSG(_(e_invarg));
else
{
#ifdef FEAT_MBYTE
func_mb_ptr2char_adv = skipcc ? mb_ptr2char_adv : mb_cptr2char_adv;
while (*s != NUL)
{
func_mb_ptr2char_adv(&s);
++len;
}
rettv->vval.v_number = len;
#else
rettv->vval.v_number = (varnumber_T)(STRLEN(s));
#endif
}
}
/*
* "strdisplaywidth()" function
*/
static void
f_strdisplaywidth(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *s = get_tv_string(&argvars[0]);
int col = 0;
if (argvars[1].v_type != VAR_UNKNOWN)
col = get_tv_number(&argvars[1]);
rettv->vval.v_number = (varnumber_T)(linetabsize_col(col, s) - col);
}
/*
* "strwidth()" function
*/
static void
f_strwidth(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *s = get_tv_string(&argvars[0]);
rettv->vval.v_number = (varnumber_T)(
#ifdef FEAT_MBYTE
mb_string2cells(s, -1)
#else
STRLEN(s)
#endif
);
}
/*
* "strpart()" function
*/
static void
f_strpart(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *p;
int n;
int len;
int slen;
int error = FALSE;
p = get_tv_string(&argvars[0]);
slen = (int)STRLEN(p);
n = get_tv_number_chk(&argvars[1], &error);
if (error)
len = 0;
else if (argvars[2].v_type != VAR_UNKNOWN)
len = get_tv_number(&argvars[2]);
else
len = slen - n; /* default len: all bytes that are available. */
/*
* Only return the overlap between the specified part and the actual
* string.
*/
if (n < 0)
{
len += n;
n = 0;
}
else if (n > slen)
n = slen;
if (len < 0)
len = 0;
else if (n + len > slen)
len = slen - n;
rettv->v_type = VAR_STRING;
rettv->vval.v_string = vim_strnsave(p + n, len);
}
/*
* "strridx()" function
*/
static void
f_strridx(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u buf[NUMBUFLEN];
char_u *needle;
char_u *haystack;
char_u *rest;
char_u *lastmatch = NULL;
int haystack_len, end_idx;
needle = get_tv_string_chk(&argvars[1]);
haystack = get_tv_string_buf_chk(&argvars[0], buf);
rettv->vval.v_number = -1;
if (needle == NULL || haystack == NULL)
return; /* type error; errmsg already given */
haystack_len = (int)STRLEN(haystack);
if (argvars[2].v_type != VAR_UNKNOWN)
{
/* Third argument: upper limit for index */
end_idx = get_tv_number_chk(&argvars[2], NULL);
if (end_idx < 0)
return; /* can never find a match */
}
else
end_idx = haystack_len;
if (*needle == NUL)
{
/* Empty string matches past the end. */
lastmatch = haystack + end_idx;
}
else
{
for (rest = haystack; *rest != '\0'; ++rest)
{
rest = (char_u *)strstr((char *)rest, (char *)needle);
if (rest == NULL || rest > haystack + end_idx)
break;
lastmatch = rest;
}
}
if (lastmatch == NULL)
rettv->vval.v_number = -1;
else
rettv->vval.v_number = (varnumber_T)(lastmatch - haystack);
}
/*
* "strtrans()" function
*/
static void
f_strtrans(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = transstr(get_tv_string(&argvars[0]));
}
/*
* "submatch()" function
*/
static void
f_submatch(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int error = FALSE;
int no;
int retList = 0;
no = (int)get_tv_number_chk(&argvars[0], &error);
if (error)
return;
error = FALSE;
if (argvars[1].v_type != VAR_UNKNOWN)
retList = get_tv_number_chk(&argvars[1], &error);
if (error)
return;
if (retList == 0)
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = reg_submatch(no);
}
else
{
rettv->v_type = VAR_LIST;
rettv->vval.v_list = reg_submatch_list(no);
}
}
/*
* "substitute()" function
*/
static void
f_substitute(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u patbuf[NUMBUFLEN];
char_u subbuf[NUMBUFLEN];
char_u flagsbuf[NUMBUFLEN];
char_u *str = get_tv_string_chk(&argvars[0]);
char_u *pat = get_tv_string_buf_chk(&argvars[1], patbuf);
char_u *sub = get_tv_string_buf_chk(&argvars[2], subbuf);
char_u *flg = get_tv_string_buf_chk(&argvars[3], flagsbuf);
rettv->v_type = VAR_STRING;
if (str == NULL || pat == NULL || sub == NULL || flg == NULL)
rettv->vval.v_string = NULL;
else
rettv->vval.v_string = do_string_sub(str, pat, sub, flg);
}
/*
* "synID(lnum, col, trans)" function
*/
static void
f_synID(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
int id = 0;
#ifdef FEAT_SYN_HL
long lnum;
long col;
int trans;
int transerr = FALSE;
lnum = get_tv_lnum(argvars); /* -1 on type error */
col = get_tv_number(&argvars[1]) - 1; /* -1 on type error */
trans = get_tv_number_chk(&argvars[2], &transerr);
if (!transerr && lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count
&& col >= 0 && col < (long)STRLEN(ml_get(lnum)))
id = syn_get_id(curwin, lnum, (colnr_T)col, trans, NULL, FALSE);
#endif
rettv->vval.v_number = id;
}
/*
* "synIDattr(id, what [, mode])" function
*/
static void
f_synIDattr(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
char_u *p = NULL;
#ifdef FEAT_SYN_HL
int id;
char_u *what;
char_u *mode;
char_u modebuf[NUMBUFLEN];
int modec;
id = get_tv_number(&argvars[0]);
what = get_tv_string(&argvars[1]);
if (argvars[2].v_type != VAR_UNKNOWN)
{
mode = get_tv_string_buf(&argvars[2], modebuf);
modec = TOLOWER_ASC(mode[0]);
if (modec != 't' && modec != 'c' && modec != 'g')
modec = 0; /* replace invalid with current */
}
else
{
#ifdef FEAT_GUI
if (gui.in_use)
modec = 'g';
else
#endif
if (t_colors > 1)
modec = 'c';
else
modec = 't';
}
switch (TOLOWER_ASC(what[0]))
{
case 'b':
if (TOLOWER_ASC(what[1]) == 'g') /* bg[#] */
p = highlight_color(id, what, modec);
else /* bold */
p = highlight_has_attr(id, HL_BOLD, modec);
break;
case 'f': /* fg[#] or font */
p = highlight_color(id, what, modec);
break;
case 'i':
if (TOLOWER_ASC(what[1]) == 'n') /* inverse */
p = highlight_has_attr(id, HL_INVERSE, modec);
else /* italic */
p = highlight_has_attr(id, HL_ITALIC, modec);
break;
case 'n': /* name */
p = get_highlight_name(NULL, id - 1);
break;
case 'r': /* reverse */
p = highlight_has_attr(id, HL_INVERSE, modec);
break;
case 's':
if (TOLOWER_ASC(what[1]) == 'p') /* sp[#] */
p = highlight_color(id, what, modec);
else /* standout */
p = highlight_has_attr(id, HL_STANDOUT, modec);
break;
case 'u':
if (STRLEN(what) <= 5 || TOLOWER_ASC(what[5]) != 'c')
/* underline */
p = highlight_has_attr(id, HL_UNDERLINE, modec);
else
/* undercurl */
p = highlight_has_attr(id, HL_UNDERCURL, modec);
break;
}
if (p != NULL)
p = vim_strsave(p);
#endif
rettv->v_type = VAR_STRING;
rettv->vval.v_string = p;
}
/*
* "synIDtrans(id)" function
*/
static void
f_synIDtrans(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
int id;
#ifdef FEAT_SYN_HL
id = get_tv_number(&argvars[0]);
if (id > 0)
id = syn_get_final_id(id);
else
#endif
id = 0;
rettv->vval.v_number = id;
}
/*
* "synconcealed(lnum, col)" function
*/
static void
f_synconcealed(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#if defined(FEAT_SYN_HL) && defined(FEAT_CONCEAL)
long lnum;
long col;
int syntax_flags = 0;
int cchar;
int matchid = 0;
char_u str[NUMBUFLEN];
#endif
rettv->v_type = VAR_LIST;
rettv->vval.v_list = NULL;
#if defined(FEAT_SYN_HL) && defined(FEAT_CONCEAL)
lnum = get_tv_lnum(argvars); /* -1 on type error */
col = get_tv_number(&argvars[1]) - 1; /* -1 on type error */
vim_memset(str, NUL, sizeof(str));
if (rettv_list_alloc(rettv) != FAIL)
{
if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count
&& col >= 0 && col <= (long)STRLEN(ml_get(lnum))
&& curwin->w_p_cole > 0)
{
(void)syn_get_id(curwin, lnum, col, FALSE, NULL, FALSE);
syntax_flags = get_syntax_info(&matchid);
/* get the conceal character */
if ((syntax_flags & HL_CONCEAL) && curwin->w_p_cole < 3)
{
cchar = syn_get_sub_char();
if (cchar == NUL && curwin->w_p_cole == 1 && lcs_conceal != NUL)
cchar = lcs_conceal;
if (cchar != NUL)
{
# ifdef FEAT_MBYTE
if (has_mbyte)
(*mb_char2bytes)(cchar, str);
else
# endif
str[0] = cchar;
}
}
}
list_append_number(rettv->vval.v_list,
(syntax_flags & HL_CONCEAL) != 0);
/* -1 to auto-determine strlen */
list_append_string(rettv->vval.v_list, str, -1);
list_append_number(rettv->vval.v_list, matchid);
}
#endif
}
/*
* "synstack(lnum, col)" function
*/
static void
f_synstack(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_SYN_HL
long lnum;
long col;
int i;
int id;
#endif
rettv->v_type = VAR_LIST;
rettv->vval.v_list = NULL;
#ifdef FEAT_SYN_HL
lnum = get_tv_lnum(argvars); /* -1 on type error */
col = get_tv_number(&argvars[1]) - 1; /* -1 on type error */
if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count
&& col >= 0 && col <= (long)STRLEN(ml_get(lnum))
&& rettv_list_alloc(rettv) != FAIL)
{
(void)syn_get_id(curwin, lnum, (colnr_T)col, FALSE, NULL, TRUE);
for (i = 0; ; ++i)
{
id = syn_get_stack_item(i);
if (id < 0)
break;
if (list_append_number(rettv->vval.v_list, id) == FAIL)
break;
}
}
#endif
}
static void
get_cmd_output_as_rettv(argvars, rettv, retlist)
typval_T *argvars;
typval_T *rettv;
int retlist;
{
char_u *res = NULL;
char_u *p;
char_u *infile = NULL;
char_u buf[NUMBUFLEN];
int err = FALSE;
FILE *fd;
list_T *list = NULL;
int flags = SHELL_SILENT;
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
if (check_restricted() || check_secure())
goto errret;
if (argvars[1].v_type != VAR_UNKNOWN)
{
/*
* Write the string to a temp file, to be used for input of the shell
* command.
*/
if ((infile = vim_tempname('i', TRUE)) == NULL)
{
EMSG(_(e_notmp));
goto errret;
}
fd = mch_fopen((char *)infile, WRITEBIN);
if (fd == NULL)
{
EMSG2(_(e_notopen), infile);
goto errret;
}
if (argvars[1].v_type == VAR_LIST)
{
if (write_list(fd, argvars[1].vval.v_list, TRUE) == FAIL)
err = TRUE;
}
else
{
size_t len;
p = get_tv_string_buf_chk(&argvars[1], buf);
if (p == NULL)
{
fclose(fd);
goto errret; /* type error; errmsg already given */
}
len = STRLEN(p);
if (len > 0 && fwrite(p, len, 1, fd) != 1)
err = TRUE;
}
if (fclose(fd) != 0)
err = TRUE;
if (err)
{
EMSG(_("E677: Error writing temp file"));
goto errret;
}
}
/* Omit SHELL_COOKED when invoked with ":silent". Avoids that the shell
* echoes typeahead, that messes up the display. */
if (!msg_silent)
flags += SHELL_COOKED;
if (retlist)
{
int len;
listitem_T *li;
char_u *s = NULL;
char_u *start;
char_u *end;
int i;
res = get_cmd_output(get_tv_string(&argvars[0]), infile, flags, &len);
if (res == NULL)
goto errret;
list = list_alloc();
if (list == NULL)
goto errret;
for (i = 0; i < len; ++i)
{
start = res + i;
while (i < len && res[i] != NL)
++i;
end = res + i;
s = alloc((unsigned)(end - start + 1));
if (s == NULL)
goto errret;
for (p = s; start < end; ++p, ++start)
*p = *start == NUL ? NL : *start;
*p = NUL;
li = listitem_alloc();
if (li == NULL)
{
vim_free(s);
goto errret;
}
li->li_tv.v_type = VAR_STRING;
li->li_tv.v_lock = 0;
li->li_tv.vval.v_string = s;
list_append(list, li);
}
++list->lv_refcount;
rettv->v_type = VAR_LIST;
rettv->vval.v_list = list;
list = NULL;
}
else
{
res = get_cmd_output(get_tv_string(&argvars[0]), infile, flags, NULL);
#ifdef USE_CR
/* translate <CR> into <NL> */
if (res != NULL)
{
char_u *s;
for (s = res; *s; ++s)
{
if (*s == CAR)
*s = NL;
}
}
#else
# ifdef USE_CRNL
/* translate <CR><NL> into <NL> */
if (res != NULL)
{
char_u *s, *d;
d = res;
for (s = res; *s; ++s)
{
if (s[0] == CAR && s[1] == NL)
++s;
*d++ = *s;
}
*d = NUL;
}
# endif
#endif
rettv->vval.v_string = res;
res = NULL;
}
errret:
if (infile != NULL)
{
mch_remove(infile);
vim_free(infile);
}
if (res != NULL)
vim_free(res);
if (list != NULL)
list_free(list, TRUE);
}
/*
* "system()" function
*/
static void
f_system(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
get_cmd_output_as_rettv(argvars, rettv, FALSE);
}
/*
* "systemlist()" function
*/
static void
f_systemlist(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
get_cmd_output_as_rettv(argvars, rettv, TRUE);
}
/*
* "tabpagebuflist()" function
*/
static void
f_tabpagebuflist(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_WINDOWS
tabpage_T *tp;
win_T *wp = NULL;
if (argvars[0].v_type == VAR_UNKNOWN)
wp = firstwin;
else
{
tp = find_tabpage((int)get_tv_number(&argvars[0]));
if (tp != NULL)
wp = (tp == curtab) ? firstwin : tp->tp_firstwin;
}
if (wp != NULL && rettv_list_alloc(rettv) != FAIL)
{
for (; wp != NULL; wp = wp->w_next)
if (list_append_number(rettv->vval.v_list,
wp->w_buffer->b_fnum) == FAIL)
break;
}
#endif
}
/*
* "tabpagenr()" function
*/
static void
f_tabpagenr(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
int nr = 1;
#ifdef FEAT_WINDOWS
char_u *arg;
if (argvars[0].v_type != VAR_UNKNOWN)
{
arg = get_tv_string_chk(&argvars[0]);
nr = 0;
if (arg != NULL)
{
if (STRCMP(arg, "$") == 0)
nr = tabpage_index(NULL) - 1;
else
EMSG2(_(e_invexpr2), arg);
}
}
else
nr = tabpage_index(curtab);
#endif
rettv->vval.v_number = nr;
}
#ifdef FEAT_WINDOWS
static int get_winnr __ARGS((tabpage_T *tp, typval_T *argvar));
/*
* Common code for tabpagewinnr() and winnr().
*/
static int
get_winnr(tp, argvar)
tabpage_T *tp;
typval_T *argvar;
{
win_T *twin;
int nr = 1;
win_T *wp;
char_u *arg;
twin = (tp == curtab) ? curwin : tp->tp_curwin;
if (argvar->v_type != VAR_UNKNOWN)
{
arg = get_tv_string_chk(argvar);
if (arg == NULL)
nr = 0; /* type error; errmsg already given */
else if (STRCMP(arg, "$") == 0)
twin = (tp == curtab) ? lastwin : tp->tp_lastwin;
else if (STRCMP(arg, "#") == 0)
{
twin = (tp == curtab) ? prevwin : tp->tp_prevwin;
if (twin == NULL)
nr = 0;
}
else
{
EMSG2(_(e_invexpr2), arg);
nr = 0;
}
}
if (nr > 0)
for (wp = (tp == curtab) ? firstwin : tp->tp_firstwin;
wp != twin; wp = wp->w_next)
{
if (wp == NULL)
{
/* didn't find it in this tabpage */
nr = 0;
break;
}
++nr;
}
return nr;
}
#endif
/*
* "tabpagewinnr()" function
*/
static void
f_tabpagewinnr(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
int nr = 1;
#ifdef FEAT_WINDOWS
tabpage_T *tp;
tp = find_tabpage((int)get_tv_number(&argvars[0]));
if (tp == NULL)
nr = 0;
else
nr = get_winnr(tp, &argvars[1]);
#endif
rettv->vval.v_number = nr;
}
/*
* "tagfiles()" function
*/
static void
f_tagfiles(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
char_u *fname;
tagname_T tn;
int first;
if (rettv_list_alloc(rettv) == FAIL)
return;
fname = alloc(MAXPATHL);
if (fname == NULL)
return;
for (first = TRUE; ; first = FALSE)
if (get_tagfname(&tn, first, fname) == FAIL
|| list_append_string(rettv->vval.v_list, fname, -1) == FAIL)
break;
tagname_free(&tn);
vim_free(fname);
}
/*
* "taglist()" function
*/
static void
f_taglist(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *tag_pattern;
tag_pattern = get_tv_string(&argvars[0]);
rettv->vval.v_number = FALSE;
if (*tag_pattern == NUL)
return;
if (rettv_list_alloc(rettv) == OK)
(void)get_tags(rettv->vval.v_list, tag_pattern);
}
/*
* "tempname()" function
*/
static void
f_tempname(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
static int x = 'A';
rettv->v_type = VAR_STRING;
rettv->vval.v_string = vim_tempname(x, FALSE);
/* Advance 'x' to use A-Z and 0-9, so that there are at least 34 different
* names. Skip 'I' and 'O', they are used for shell redirection. */
do
{
if (x == 'Z')
x = '0';
else if (x == '9')
x = 'A';
else
{
#ifdef EBCDIC
if (x == 'I')
x = 'J';
else if (x == 'R')
x = 'S';
else
#endif
++x;
}
} while (x == 'I' || x == 'O');
}
/*
* "test(list)" function: Just checking the walls...
*/
static void
f_test(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
/* Used for unit testing. Change the code below to your liking. */
#if 0
listitem_T *li;
list_T *l;
char_u *bad, *good;
if (argvars[0].v_type != VAR_LIST)
return;
l = argvars[0].vval.v_list;
if (l == NULL)
return;
li = l->lv_first;
if (li == NULL)
return;
bad = get_tv_string(&li->li_tv);
li = li->li_next;
if (li == NULL)
return;
good = get_tv_string(&li->li_tv);
rettv->vval.v_number = test_edit_score(bad, good);
#endif
}
#ifdef FEAT_FLOAT
/*
* "tan()" function
*/
static void
f_tan(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = tan(f);
else
rettv->vval.v_float = 0.0;
}
/*
* "tanh()" function
*/
static void
f_tanh(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
rettv->vval.v_float = tanh(f);
else
rettv->vval.v_float = 0.0;
}
#endif
/*
* "tolower(string)" function
*/
static void
f_tolower(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *p;
p = vim_strsave(get_tv_string(&argvars[0]));
rettv->v_type = VAR_STRING;
rettv->vval.v_string = p;
if (p != NULL)
while (*p != NUL)
{
#ifdef FEAT_MBYTE
int l;
if (enc_utf8)
{
int c, lc;
c = utf_ptr2char(p);
lc = utf_tolower(c);
l = utf_ptr2len(p);
/* TODO: reallocate string when byte count changes. */
if (utf_char2len(lc) == l)
utf_char2bytes(lc, p);
p += l;
}
else if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
p += l; /* skip multi-byte character */
else
#endif
{
*p = TOLOWER_LOC(*p); /* note that tolower() can be a macro */
++p;
}
}
}
/*
* "toupper(string)" function
*/
static void
f_toupper(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = strup_save(get_tv_string(&argvars[0]));
}
/*
* "tr(string, fromstr, tostr)" function
*/
static void
f_tr(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
char_u *in_str;
char_u *fromstr;
char_u *tostr;
char_u *p;
#ifdef FEAT_MBYTE
int inlen;
int fromlen;
int tolen;
int idx;
char_u *cpstr;
int cplen;
int first = TRUE;
#endif
char_u buf[NUMBUFLEN];
char_u buf2[NUMBUFLEN];
garray_T ga;
in_str = get_tv_string(&argvars[0]);
fromstr = get_tv_string_buf_chk(&argvars[1], buf);
tostr = get_tv_string_buf_chk(&argvars[2], buf2);
/* Default return value: empty string. */
rettv->v_type = VAR_STRING;
rettv->vval.v_string = NULL;
if (fromstr == NULL || tostr == NULL)
return; /* type error; errmsg already given */
ga_init2(&ga, (int)sizeof(char), 80);
#ifdef FEAT_MBYTE
if (!has_mbyte)
#endif
/* not multi-byte: fromstr and tostr must be the same length */
if (STRLEN(fromstr) != STRLEN(tostr))
{
#ifdef FEAT_MBYTE
error:
#endif
EMSG2(_(e_invarg2), fromstr);
ga_clear(&ga);
return;
}
/* fromstr and tostr have to contain the same number of chars */
while (*in_str != NUL)
{
#ifdef FEAT_MBYTE
if (has_mbyte)
{
inlen = (*mb_ptr2len)(in_str);
cpstr = in_str;
cplen = inlen;
idx = 0;
for (p = fromstr; *p != NUL; p += fromlen)
{
fromlen = (*mb_ptr2len)(p);
if (fromlen == inlen && STRNCMP(in_str, p, inlen) == 0)
{
for (p = tostr; *p != NUL; p += tolen)
{
tolen = (*mb_ptr2len)(p);
if (idx-- == 0)
{
cplen = tolen;
cpstr = p;
break;
}
}
if (*p == NUL) /* tostr is shorter than fromstr */
goto error;
break;
}
++idx;
}
if (first && cpstr == in_str)
{
/* Check that fromstr and tostr have the same number of
* (multi-byte) characters. Done only once when a character
* of in_str doesn't appear in fromstr. */
first = FALSE;
for (p = tostr; *p != NUL; p += tolen)
{
tolen = (*mb_ptr2len)(p);
--idx;
}
if (idx != 0)
goto error;
}
(void)ga_grow(&ga, cplen);
mch_memmove((char *)ga.ga_data + ga.ga_len, cpstr, (size_t)cplen);
ga.ga_len += cplen;
in_str += inlen;
}
else
#endif
{
/* When not using multi-byte chars we can do it faster. */
p = vim_strchr(fromstr, *in_str);
if (p != NULL)
ga_append(&ga, tostr[p - fromstr]);
else
ga_append(&ga, *in_str);
++in_str;
}
}
/* add a terminating NUL */
(void)ga_grow(&ga, 1);
ga_append(&ga, NUL);
rettv->vval.v_string = ga.ga_data;
}
#ifdef FEAT_FLOAT
/*
* "trunc({float})" function
*/
static void
f_trunc(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
float_T f;
rettv->v_type = VAR_FLOAT;
if (get_float_arg(argvars, &f) == OK)
/* trunc() is not in C90, use floor() or ceil() instead. */
rettv->vval.v_float = f > 0 ? floor(f) : ceil(f);
else
rettv->vval.v_float = 0.0;
}
#endif
/*
* "type(expr)" function
*/
static void
f_type(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int n;
switch (argvars[0].v_type)
{
case VAR_NUMBER: n = 0; break;
case VAR_STRING: n = 1; break;
case VAR_FUNC: n = 2; break;
case VAR_LIST: n = 3; break;
case VAR_DICT: n = 4; break;
#ifdef FEAT_FLOAT
case VAR_FLOAT: n = 5; break;
#endif
default: EMSG2(_(e_intern2), "f_type()"); n = 0; break;
}
rettv->vval.v_number = n;
}
/*
* "undofile(name)" function
*/
static void
f_undofile(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
rettv->v_type = VAR_STRING;
#ifdef FEAT_PERSISTENT_UNDO
{
char_u *fname = get_tv_string(&argvars[0]);
if (*fname == NUL)
{
/* If there is no file name there will be no undo file. */
rettv->vval.v_string = NULL;
}
else
{
char_u *ffname = FullName_save(fname, FALSE);
if (ffname != NULL)
rettv->vval.v_string = u_get_undo_file_name(ffname, FALSE);
vim_free(ffname);
}
}
#else
rettv->vval.v_string = NULL;
#endif
}
/*
* "undotree()" function
*/
static void
f_undotree(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
if (rettv_dict_alloc(rettv) == OK)
{
dict_T *dict = rettv->vval.v_dict;
list_T *list;
dict_add_nr_str(dict, "synced", (long)curbuf->b_u_synced, NULL);
dict_add_nr_str(dict, "seq_last", curbuf->b_u_seq_last, NULL);
dict_add_nr_str(dict, "save_last",
(long)curbuf->b_u_save_nr_last, NULL);
dict_add_nr_str(dict, "seq_cur", curbuf->b_u_seq_cur, NULL);
dict_add_nr_str(dict, "time_cur", (long)curbuf->b_u_time_cur, NULL);
dict_add_nr_str(dict, "save_cur", (long)curbuf->b_u_save_nr_cur, NULL);
list = list_alloc();
if (list != NULL)
{
u_eval_tree(curbuf->b_u_oldhead, list);
dict_add_list(dict, "entries", list);
}
}
}
/*
* "values(dict)" function
*/
static void
f_values(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
dict_list(argvars, rettv, 1);
}
/*
* "virtcol(string)" function
*/
static void
f_virtcol(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
colnr_T vcol = 0;
pos_T *fp;
int fnum = curbuf->b_fnum;
fp = var2fpos(&argvars[0], FALSE, &fnum);
if (fp != NULL && fp->lnum <= curbuf->b_ml.ml_line_count
&& fnum == curbuf->b_fnum)
{
getvvcol(curwin, fp, NULL, NULL, &vcol);
++vcol;
}
rettv->vval.v_number = vcol;
}
/*
* "visualmode()" function
*/
static void
f_visualmode(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
char_u str[2];
rettv->v_type = VAR_STRING;
str[0] = curbuf->b_visual_mode_eval;
str[1] = NUL;
rettv->vval.v_string = vim_strsave(str);
/* A non-zero number or non-empty string argument: reset mode. */
if (non_zero_arg(&argvars[0]))
curbuf->b_visual_mode_eval = NUL;
}
/*
* "wildmenumode()" function
*/
static void
f_wildmenumode(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv UNUSED;
{
#ifdef FEAT_WILDMENU
if (wild_menu_showing)
rettv->vval.v_number = 1;
#endif
}
/*
* "winbufnr(nr)" function
*/
static void
f_winbufnr(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
win_T *wp;
wp = find_win_by_nr(&argvars[0], NULL);
if (wp == NULL)
rettv->vval.v_number = -1;
else
rettv->vval.v_number = wp->w_buffer->b_fnum;
}
/*
* "wincol()" function
*/
static void
f_wincol(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
validate_cursor();
rettv->vval.v_number = curwin->w_wcol + 1;
}
/*
* "winheight(nr)" function
*/
static void
f_winheight(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
win_T *wp;
wp = find_win_by_nr(&argvars[0], NULL);
if (wp == NULL)
rettv->vval.v_number = -1;
else
rettv->vval.v_number = wp->w_height;
}
/*
* "winline()" function
*/
static void
f_winline(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
validate_cursor();
rettv->vval.v_number = curwin->w_wrow + 1;
}
/*
* "winnr()" function
*/
static void
f_winnr(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
int nr = 1;
#ifdef FEAT_WINDOWS
nr = get_winnr(curtab, &argvars[0]);
#endif
rettv->vval.v_number = nr;
}
/*
* "winrestcmd()" function
*/
static void
f_winrestcmd(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
#ifdef FEAT_WINDOWS
win_T *wp;
int winnr = 1;
garray_T ga;
char_u buf[50];
ga_init2(&ga, (int)sizeof(char), 70);
for (wp = firstwin; wp != NULL; wp = wp->w_next)
{
sprintf((char *)buf, "%dresize %d|", winnr, wp->w_height);
ga_concat(&ga, buf);
# ifdef FEAT_VERTSPLIT
sprintf((char *)buf, "vert %dresize %d|", winnr, wp->w_width);
ga_concat(&ga, buf);
# endif
++winnr;
}
ga_append(&ga, NUL);
rettv->vval.v_string = ga.ga_data;
#else
rettv->vval.v_string = NULL;
#endif
rettv->v_type = VAR_STRING;
}
/*
* "winrestview()" function
*/
static void
f_winrestview(argvars, rettv)
typval_T *argvars;
typval_T *rettv UNUSED;
{
dict_T *dict;
if (argvars[0].v_type != VAR_DICT
|| (dict = argvars[0].vval.v_dict) == NULL)
EMSG(_(e_invarg));
else
{
if (dict_find(dict, (char_u *)"lnum", -1) != NULL)
curwin->w_cursor.lnum = get_dict_number(dict, (char_u *)"lnum");
if (dict_find(dict, (char_u *)"col", -1) != NULL)
curwin->w_cursor.col = get_dict_number(dict, (char_u *)"col");
#ifdef FEAT_VIRTUALEDIT
if (dict_find(dict, (char_u *)"coladd", -1) != NULL)
curwin->w_cursor.coladd = get_dict_number(dict, (char_u *)"coladd");
#endif
if (dict_find(dict, (char_u *)"curswant", -1) != NULL)
{
curwin->w_curswant = get_dict_number(dict, (char_u *)"curswant");
curwin->w_set_curswant = FALSE;
}
if (dict_find(dict, (char_u *)"topline", -1) != NULL)
set_topline(curwin, get_dict_number(dict, (char_u *)"topline"));
#ifdef FEAT_DIFF
if (dict_find(dict, (char_u *)"topfill", -1) != NULL)
curwin->w_topfill = get_dict_number(dict, (char_u *)"topfill");
#endif
if (dict_find(dict, (char_u *)"leftcol", -1) != NULL)
curwin->w_leftcol = get_dict_number(dict, (char_u *)"leftcol");
if (dict_find(dict, (char_u *)"skipcol", -1) != NULL)
curwin->w_skipcol = get_dict_number(dict, (char_u *)"skipcol");
check_cursor();
win_new_height(curwin, curwin->w_height);
# ifdef FEAT_VERTSPLIT
win_new_width(curwin, W_WIDTH(curwin));
# endif
changed_window_setting();
if (curwin->w_topline <= 0)
curwin->w_topline = 1;
if (curwin->w_topline > curbuf->b_ml.ml_line_count)
curwin->w_topline = curbuf->b_ml.ml_line_count;
#ifdef FEAT_DIFF
check_topfill(curwin, TRUE);
#endif
}
}
/*
* "winsaveview()" function
*/
static void
f_winsaveview(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
dict_T *dict;
if (rettv_dict_alloc(rettv) == FAIL)
return;
dict = rettv->vval.v_dict;
dict_add_nr_str(dict, "lnum", (long)curwin->w_cursor.lnum, NULL);
dict_add_nr_str(dict, "col", (long)curwin->w_cursor.col, NULL);
#ifdef FEAT_VIRTUALEDIT
dict_add_nr_str(dict, "coladd", (long)curwin->w_cursor.coladd, NULL);
#endif
update_curswant();
dict_add_nr_str(dict, "curswant", (long)curwin->w_curswant, NULL);
dict_add_nr_str(dict, "topline", (long)curwin->w_topline, NULL);
#ifdef FEAT_DIFF
dict_add_nr_str(dict, "topfill", (long)curwin->w_topfill, NULL);
#endif
dict_add_nr_str(dict, "leftcol", (long)curwin->w_leftcol, NULL);
dict_add_nr_str(dict, "skipcol", (long)curwin->w_skipcol, NULL);
}
/*
* "winwidth(nr)" function
*/
static void
f_winwidth(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
win_T *wp;
wp = find_win_by_nr(&argvars[0], NULL);
if (wp == NULL)
rettv->vval.v_number = -1;
else
#ifdef FEAT_VERTSPLIT
rettv->vval.v_number = wp->w_width;
#else
rettv->vval.v_number = Columns;
#endif
}
/*
* "wordcount()" function
*/
static void
f_wordcount(argvars, rettv)
typval_T *argvars UNUSED;
typval_T *rettv;
{
if (rettv_dict_alloc(rettv) == FAIL)
return;
cursor_pos_info(rettv->vval.v_dict);
}
/*
* Write list of strings to file
*/
static int
write_list(fd, list, binary)
FILE *fd;
list_T *list;
int binary;
{
listitem_T *li;
int c;
int ret = OK;
char_u *s;
for (li = list->lv_first; li != NULL; li = li->li_next)
{
for (s = get_tv_string(&li->li_tv); *s != NUL; ++s)
{
if (*s == '\n')
c = putc(NUL, fd);
else
c = putc(*s, fd);
if (c == EOF)
{
ret = FAIL;
break;
}
}
if (!binary || li->li_next != NULL)
if (putc('\n', fd) == EOF)
{
ret = FAIL;
break;
}
if (ret == FAIL)
{
EMSG(_(e_write));
break;
}
}
return ret;
}
/*
* "writefile()" function
*/
static void
f_writefile(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
int binary = FALSE;
int append = FALSE;
char_u *fname;
FILE *fd;
int ret = 0;
if (check_restricted() || check_secure())
return;
if (argvars[0].v_type != VAR_LIST)
{
EMSG2(_(e_listarg), "writefile()");
return;
}
if (argvars[0].vval.v_list == NULL)
return;
if (argvars[2].v_type != VAR_UNKNOWN)
{
if (vim_strchr(get_tv_string(&argvars[2]), 'b') != NULL)
binary = TRUE;
if (vim_strchr(get_tv_string(&argvars[2]), 'a') != NULL)
append = TRUE;
}
/* Always open the file in binary mode, library functions have a mind of
* their own about CR-LF conversion. */
fname = get_tv_string(&argvars[1]);
if (*fname == NUL || (fd = mch_fopen((char *)fname,
append ? APPENDBIN : WRITEBIN)) == NULL)
{
EMSG2(_(e_notcreate), *fname == NUL ? (char_u *)_("<empty>") : fname);
ret = -1;
}
else
{
if (write_list(fd, argvars[0].vval.v_list, binary) == FAIL)
ret = -1;
fclose(fd);
}
rettv->vval.v_number = ret;
}
/*
* "xor(expr, expr)" function
*/
static void
f_xor(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
rettv->vval.v_number = get_tv_number_chk(&argvars[0], NULL)
^ get_tv_number_chk(&argvars[1], NULL);
}
/*
* Translate a String variable into a position.
* Returns NULL when there is an error.
*/
static pos_T *
var2fpos(varp, dollar_lnum, fnum)
typval_T *varp;
int dollar_lnum; /* TRUE when $ is last line */
int *fnum; /* set to fnum for '0, 'A, etc. */
{
char_u *name;
static pos_T pos;
pos_T *pp;
/* Argument can be [lnum, col, coladd]. */
if (varp->v_type == VAR_LIST)
{
list_T *l;
int len;
int error = FALSE;
listitem_T *li;
l = varp->vval.v_list;
if (l == NULL)
return NULL;
/* Get the line number */
pos.lnum = list_find_nr(l, 0L, &error);
if (error || pos.lnum <= 0 || pos.lnum > curbuf->b_ml.ml_line_count)
return NULL; /* invalid line number */
/* Get the column number */
pos.col = list_find_nr(l, 1L, &error);
if (error)
return NULL;
len = (long)STRLEN(ml_get(pos.lnum));
/* We accept "$" for the column number: last column. */
li = list_find(l, 1L);
if (li != NULL && li->li_tv.v_type == VAR_STRING
&& li->li_tv.vval.v_string != NULL
&& STRCMP(li->li_tv.vval.v_string, "$") == 0)
pos.col = len + 1;
/* Accept a position up to the NUL after the line. */
if (pos.col == 0 || (int)pos.col > len + 1)
return NULL; /* invalid column number */
--pos.col;
#ifdef FEAT_VIRTUALEDIT
/* Get the virtual offset. Defaults to zero. */
pos.coladd = list_find_nr(l, 2L, &error);
if (error)
pos.coladd = 0;
#endif
return &pos;
}
name = get_tv_string_chk(varp);
if (name == NULL)
return NULL;
if (name[0] == '.') /* cursor */
return &curwin->w_cursor;
if (name[0] == 'v' && name[1] == NUL) /* Visual start */
{
if (VIsual_active)
return &VIsual;
return &curwin->w_cursor;
}
if (name[0] == '\'') /* mark */
{
pp = getmark_buf_fnum(curbuf, name[1], FALSE, fnum);
if (pp == NULL || pp == (pos_T *)-1 || pp->lnum <= 0)
return NULL;
return pp;
}
#ifdef FEAT_VIRTUALEDIT
pos.coladd = 0;
#endif
if (name[0] == 'w' && dollar_lnum)
{
pos.col = 0;
if (name[1] == '0') /* "w0": first visible line */
{
update_topline();
pos.lnum = curwin->w_topline;
return &pos;
}
else if (name[1] == '$') /* "w$": last visible line */
{
validate_botline();
pos.lnum = curwin->w_botline - 1;
return &pos;
}
}
else if (name[0] == '$') /* last column or line */
{
if (dollar_lnum)
{
pos.lnum = curbuf->b_ml.ml_line_count;
pos.col = 0;
}
else
{
pos.lnum = curwin->w_cursor.lnum;
pos.col = (colnr_T)STRLEN(ml_get_curline());
}
return &pos;
}
return NULL;
}
/*
* Convert list in "arg" into a position and optional file number.
* When "fnump" is NULL there is no file number, only 3 items.
* Note that the column is passed on as-is, the caller may want to decrement
* it to use 1 for the first column.
* Return FAIL when conversion is not possible, doesn't check the position for
* validity.
*/
static int
list2fpos(arg, posp, fnump, curswantp)
typval_T *arg;
pos_T *posp;
int *fnump;
colnr_T *curswantp;
{
list_T *l = arg->vval.v_list;
long i = 0;
long n;
/* List must be: [fnum, lnum, col, coladd, curswant], where "fnum" is only
* there when "fnump" isn't NULL; "coladd" and "curswant" are optional. */
if (arg->v_type != VAR_LIST
|| l == NULL
|| l->lv_len < (fnump == NULL ? 2 : 3)
|| l->lv_len > (fnump == NULL ? 4 : 5))
return FAIL;
if (fnump != NULL)
{
n = list_find_nr(l, i++, NULL); /* fnum */
if (n < 0)
return FAIL;
if (n == 0)
n = curbuf->b_fnum; /* current buffer */
*fnump = n;
}
n = list_find_nr(l, i++, NULL); /* lnum */
if (n < 0)
return FAIL;
posp->lnum = n;
n = list_find_nr(l, i++, NULL); /* col */
if (n < 0)
return FAIL;
posp->col = n;
#ifdef FEAT_VIRTUALEDIT
n = list_find_nr(l, i, NULL); /* off */
if (n < 0)
posp->coladd = 0;
else
posp->coladd = n;
#endif
if (curswantp != NULL)
*curswantp = list_find_nr(l, i + 1, NULL); /* curswant */
return OK;
}
/*
* Get the length of an environment variable name.
* Advance "arg" to the first character after the name.
* Return 0 for error.
*/
static int
get_env_len(arg)
char_u **arg;
{
char_u *p;
int len;
for (p = *arg; vim_isIDc(*p); ++p)
;
if (p == *arg) /* no name found */
return 0;
len = (int)(p - *arg);
*arg = p;
return len;
}
/*
* Get the length of the name of a function or internal variable.
* "arg" is advanced to the first non-white character after the name.
* Return 0 if something is wrong.
*/
static int
get_id_len(arg)
char_u **arg;
{
char_u *p;
int len;
/* Find the end of the name. */
for (p = *arg; eval_isnamec(*p); ++p)
{
if (*p == ':')
{
/* "s:" is start of "s:var", but "n:" is not and can be used in
* slice "[n:]". Also "xx:" is not a namespace. */
len = (int)(p - *arg);
if ((len == 1 && vim_strchr(NAMESPACE_CHAR, **arg) == NULL)
|| len > 1)
break;
}
}
if (p == *arg) /* no name found */
return 0;
len = (int)(p - *arg);
*arg = skipwhite(p);
return len;
}
/*
* Get the length of the name of a variable or function.
* Only the name is recognized, does not handle ".key" or "[idx]".
* "arg" is advanced to the first non-white character after the name.
* Return -1 if curly braces expansion failed.
* Return 0 if something else is wrong.
* If the name contains 'magic' {}'s, expand them and return the
* expanded name in an allocated string via 'alias' - caller must free.
*/
static int
get_name_len(arg, alias, evaluate, verbose)
char_u **arg;
char_u **alias;
int evaluate;
int verbose;
{
int len;
char_u *p;
char_u *expr_start;
char_u *expr_end;
*alias = NULL; /* default to no alias */
if ((*arg)[0] == K_SPECIAL && (*arg)[1] == KS_EXTRA
&& (*arg)[2] == (int)KE_SNR)
{
/* hard coded <SNR>, already translated */
*arg += 3;
return get_id_len(arg) + 3;
}
len = eval_fname_script(*arg);
if (len > 0)
{
/* literal "<SID>", "s:" or "<SNR>" */
*arg += len;
}
/*
* Find the end of the name; check for {} construction.
*/
p = find_name_end(*arg, &expr_start, &expr_end,
len > 0 ? 0 : FNE_CHECK_START);
if (expr_start != NULL)
{
char_u *temp_string;
if (!evaluate)
{
len += (int)(p - *arg);
*arg = skipwhite(p);
return len;
}
/*
* Include any <SID> etc in the expanded string:
* Thus the -len here.
*/
temp_string = make_expanded_name(*arg - len, expr_start, expr_end, p);
if (temp_string == NULL)
return -1;
*alias = temp_string;
*arg = skipwhite(p);
return (int)STRLEN(temp_string);
}
len += get_id_len(arg);
if (len == 0 && verbose)
EMSG2(_(e_invexpr2), *arg);
return len;
}
/*
* Find the end of a variable or function name, taking care of magic braces.
* If "expr_start" is not NULL then "expr_start" and "expr_end" are set to the
* start and end of the first magic braces item.
* "flags" can have FNE_INCL_BR and FNE_CHECK_START.
* Return a pointer to just after the name. Equal to "arg" if there is no
* valid name.
*/
static char_u *
find_name_end(arg, expr_start, expr_end, flags)
char_u *arg;
char_u **expr_start;
char_u **expr_end;
int flags;
{
int mb_nest = 0;
int br_nest = 0;
char_u *p;
int len;
if (expr_start != NULL)
{
*expr_start = NULL;
*expr_end = NULL;
}
/* Quick check for valid starting character. */
if ((flags & FNE_CHECK_START) && !eval_isnamec1(*arg) && *arg != '{')
return arg;
for (p = arg; *p != NUL
&& (eval_isnamec(*p)
|| *p == '{'
|| ((flags & FNE_INCL_BR) && (*p == '[' || *p == '.'))
|| mb_nest != 0
|| br_nest != 0); mb_ptr_adv(p))
{
if (*p == '\'')
{
/* skip over 'string' to avoid counting [ and ] inside it. */
for (p = p + 1; *p != NUL && *p != '\''; mb_ptr_adv(p))
;
if (*p == NUL)
break;
}
else if (*p == '"')
{
/* skip over "str\"ing" to avoid counting [ and ] inside it. */
for (p = p + 1; *p != NUL && *p != '"'; mb_ptr_adv(p))
if (*p == '\\' && p[1] != NUL)
++p;
if (*p == NUL)
break;
}
else if (br_nest == 0 && mb_nest == 0 && *p == ':')
{
/* "s:" is start of "s:var", but "n:" is not and can be used in
* slice "[n:]". Also "xx:" is not a namespace. But {ns}: is. */
len = (int)(p - arg);
if ((len == 1 && vim_strchr(NAMESPACE_CHAR, *arg) == NULL)
|| (len > 1 && p[-1] != '}'))
break;
}
if (mb_nest == 0)
{
if (*p == '[')
++br_nest;
else if (*p == ']')
--br_nest;
}
if (br_nest == 0)
{
if (*p == '{')
{
mb_nest++;
if (expr_start != NULL && *expr_start == NULL)
*expr_start = p;
}
else if (*p == '}')
{
mb_nest--;
if (expr_start != NULL && mb_nest == 0 && *expr_end == NULL)
*expr_end = p;
}
}
}
return p;
}
/*
* Expands out the 'magic' {}'s in a variable/function name.
* Note that this can call itself recursively, to deal with
* constructs like foo{bar}{baz}{bam}
* The four pointer arguments point to "foo{expre}ss{ion}bar"
* "in_start" ^
* "expr_start" ^
* "expr_end" ^
* "in_end" ^
*
* Returns a new allocated string, which the caller must free.
* Returns NULL for failure.
*/
static char_u *
make_expanded_name(in_start, expr_start, expr_end, in_end)
char_u *in_start;
char_u *expr_start;
char_u *expr_end;
char_u *in_end;
{
char_u c1;
char_u *retval = NULL;
char_u *temp_result;
char_u *nextcmd = NULL;
if (expr_end == NULL || in_end == NULL)
return NULL;
*expr_start = NUL;
*expr_end = NUL;
c1 = *in_end;
*in_end = NUL;
temp_result = eval_to_string(expr_start + 1, &nextcmd, FALSE);
if (temp_result != NULL && nextcmd == NULL)
{
retval = alloc((unsigned)(STRLEN(temp_result) + (expr_start - in_start)
+ (in_end - expr_end) + 1));
if (retval != NULL)
{
STRCPY(retval, in_start);
STRCAT(retval, temp_result);
STRCAT(retval, expr_end + 1);
}
}
vim_free(temp_result);
*in_end = c1; /* put char back for error messages */
*expr_start = '{';
*expr_end = '}';
if (retval != NULL)
{
temp_result = find_name_end(retval, &expr_start, &expr_end, 0);
if (expr_start != NULL)
{
/* Further expansion! */
temp_result = make_expanded_name(retval, expr_start,
expr_end, temp_result);
vim_free(retval);
retval = temp_result;
}
}
return retval;
}
/*
* Return TRUE if character "c" can be used in a variable or function name.
* Does not include '{' or '}' for magic braces.
*/
static int
eval_isnamec(c)
int c;
{
return (ASCII_ISALNUM(c) || c == '_' || c == ':' || c == AUTOLOAD_CHAR);
}
/*
* Return TRUE if character "c" can be used as the first character in a
* variable or function name (excluding '{' and '}').
*/
static int
eval_isnamec1(c)
int c;
{
return (ASCII_ISALPHA(c) || c == '_');
}
/*
* Set number v: variable to "val".
*/
void
set_vim_var_nr(idx, val)
int idx;
long val;
{
vimvars[idx].vv_nr = val;
}
/*
* Get number v: variable value.
*/
long
get_vim_var_nr(idx)
int idx;
{
return vimvars[idx].vv_nr;
}
/*
* Get string v: variable value. Uses a static buffer, can only be used once.
*/
char_u *
get_vim_var_str(idx)
int idx;
{
return get_tv_string(&vimvars[idx].vv_tv);
}
/*
* Get List v: variable value. Caller must take care of reference count when
* needed.
*/
list_T *
get_vim_var_list(idx)
int idx;
{
return vimvars[idx].vv_list;
}
/*
* Set v:char to character "c".
*/
void
set_vim_var_char(c)
int c;
{
char_u buf[MB_MAXBYTES + 1];
#ifdef FEAT_MBYTE
if (has_mbyte)
buf[(*mb_char2bytes)(c, buf)] = NUL;
else
#endif
{
buf[0] = c;
buf[1] = NUL;
}
set_vim_var_string(VV_CHAR, buf, -1);
}
/*
* Set v:count to "count" and v:count1 to "count1".
* When "set_prevcount" is TRUE first set v:prevcount from v:count.
*/
void
set_vcount(count, count1, set_prevcount)
long count;
long count1;
int set_prevcount;
{
if (set_prevcount)
vimvars[VV_PREVCOUNT].vv_nr = vimvars[VV_COUNT].vv_nr;
vimvars[VV_COUNT].vv_nr = count;
vimvars[VV_COUNT1].vv_nr = count1;
}
/*
* Set string v: variable to a copy of "val".
*/
void
set_vim_var_string(idx, val, len)
int idx;
char_u *val;
int len; /* length of "val" to use or -1 (whole string) */
{
/* Need to do this (at least) once, since we can't initialize a union.
* Will always be invoked when "v:progname" is set. */
vimvars[VV_VERSION].vv_nr = VIM_VERSION_100;
vim_free(vimvars[idx].vv_str);
if (val == NULL)
vimvars[idx].vv_str = NULL;
else if (len == -1)
vimvars[idx].vv_str = vim_strsave(val);
else
vimvars[idx].vv_str = vim_strnsave(val, len);
}
/*
* Set List v: variable to "val".
*/
void
set_vim_var_list(idx, val)
int idx;
list_T *val;
{
list_unref(vimvars[idx].vv_list);
vimvars[idx].vv_list = val;
if (val != NULL)
++val->lv_refcount;
}
/*
* Set Dictionary v: variable to "val".
*/
void
set_vim_var_dict(idx, val)
int idx;
dict_T *val;
{
int todo;
hashitem_T *hi;
dict_unref(vimvars[idx].vv_dict);
vimvars[idx].vv_dict = val;
if (val != NULL)
{
++val->dv_refcount;
/* Set readonly */
todo = (int)val->dv_hashtab.ht_used;
for (hi = val->dv_hashtab.ht_array; todo > 0 ; ++hi)
{
if (HASHITEM_EMPTY(hi))
continue;
--todo;
HI2DI(hi)->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
}
}
}
/*
* Set v:register if needed.
*/
void
set_reg_var(c)
int c;
{
char_u regname;
if (c == 0 || c == ' ')
regname = '"';
else
regname = c;
/* Avoid free/alloc when the value is already right. */
if (vimvars[VV_REG].vv_str == NULL || vimvars[VV_REG].vv_str[0] != c)
set_vim_var_string(VV_REG, &regname, 1);
}
/*
* Get or set v:exception. If "oldval" == NULL, return the current value.
* Otherwise, restore the value to "oldval" and return NULL.
* Must always be called in pairs to save and restore v:exception! Does not
* take care of memory allocations.
*/
char_u *
v_exception(oldval)
char_u *oldval;
{
if (oldval == NULL)
return vimvars[VV_EXCEPTION].vv_str;
vimvars[VV_EXCEPTION].vv_str = oldval;
return NULL;
}
/*
* Get or set v:throwpoint. If "oldval" == NULL, return the current value.
* Otherwise, restore the value to "oldval" and return NULL.
* Must always be called in pairs to save and restore v:throwpoint! Does not
* take care of memory allocations.
*/
char_u *
v_throwpoint(oldval)
char_u *oldval;
{
if (oldval == NULL)
return vimvars[VV_THROWPOINT].vv_str;
vimvars[VV_THROWPOINT].vv_str = oldval;
return NULL;
}
#if defined(FEAT_AUTOCMD) || defined(PROTO)
/*
* Set v:cmdarg.
* If "eap" != NULL, use "eap" to generate the value and return the old value.
* If "oldarg" != NULL, restore the value to "oldarg" and return NULL.
* Must always be called in pairs!
*/
char_u *
set_cmdarg(eap, oldarg)
exarg_T *eap;
char_u *oldarg;
{
char_u *oldval;
char_u *newval;
unsigned len;
oldval = vimvars[VV_CMDARG].vv_str;
if (eap == NULL)
{
vim_free(oldval);
vimvars[VV_CMDARG].vv_str = oldarg;
return NULL;
}
if (eap->force_bin == FORCE_BIN)
len = 6;
else if (eap->force_bin == FORCE_NOBIN)
len = 8;
else
len = 0;
if (eap->read_edit)
len += 7;
if (eap->force_ff != 0)
len += (unsigned)STRLEN(eap->cmd + eap->force_ff) + 6;
# ifdef FEAT_MBYTE
if (eap->force_enc != 0)
len += (unsigned)STRLEN(eap->cmd + eap->force_enc) + 7;
if (eap->bad_char != 0)
len += 7 + 4; /* " ++bad=" + "keep" or "drop" */
# endif
newval = alloc(len + 1);
if (newval == NULL)
return NULL;
if (eap->force_bin == FORCE_BIN)
sprintf((char *)newval, " ++bin");
else if (eap->force_bin == FORCE_NOBIN)
sprintf((char *)newval, " ++nobin");
else
*newval = NUL;
if (eap->read_edit)
STRCAT(newval, " ++edit");
if (eap->force_ff != 0)
sprintf((char *)newval + STRLEN(newval), " ++ff=%s",
eap->cmd + eap->force_ff);
# ifdef FEAT_MBYTE
if (eap->force_enc != 0)
sprintf((char *)newval + STRLEN(newval), " ++enc=%s",
eap->cmd + eap->force_enc);
if (eap->bad_char == BAD_KEEP)
STRCPY(newval + STRLEN(newval), " ++bad=keep");
else if (eap->bad_char == BAD_DROP)
STRCPY(newval + STRLEN(newval), " ++bad=drop");
else if (eap->bad_char != 0)
sprintf((char *)newval + STRLEN(newval), " ++bad=%c", eap->bad_char);
# endif
vimvars[VV_CMDARG].vv_str = newval;
return oldval;
}
#endif
/*
* Get the value of internal variable "name".
* Return OK or FAIL.
*/
static int
get_var_tv(name, len, rettv, dip, verbose, no_autoload)
char_u *name;
int len; /* length of "name" */
typval_T *rettv; /* NULL when only checking existence */
dictitem_T **dip; /* non-NULL when typval's dict item is needed */
int verbose; /* may give error message */
int no_autoload; /* do not use script autoloading */
{
int ret = OK;
typval_T *tv = NULL;
typval_T atv;
dictitem_T *v;
int cc;
/* truncate the name, so that we can use strcmp() */
cc = name[len];
name[len] = NUL;
/*
* Check for "b:changedtick".
*/
if (STRCMP(name, "b:changedtick") == 0)
{
atv.v_type = VAR_NUMBER;
atv.vval.v_number = curbuf->b_changedtick;
tv = &atv;
}
/*
* Check for user-defined variables.
*/
else
{
v = find_var(name, NULL, no_autoload);
if (v != NULL)
{
tv = &v->di_tv;
if (dip != NULL)
*dip = v;
}
}
if (tv == NULL)
{
if (rettv != NULL && verbose)
EMSG2(_(e_undefvar), name);
ret = FAIL;
}
else if (rettv != NULL)
copy_tv(tv, rettv);
name[len] = cc;
return ret;
}
/*
* Handle expr[expr], expr[expr:expr] subscript and .name lookup.
* Also handle function call with Funcref variable: func(expr)
* Can all be combined: dict.func(expr)[idx]['func'](expr)
*/
static int
handle_subscript(arg, rettv, evaluate, verbose)
char_u **arg;
typval_T *rettv;
int evaluate; /* do more than finding the end */
int verbose; /* give error messages */
{
int ret = OK;
dict_T *selfdict = NULL;
char_u *s;
int len;
typval_T functv;
while (ret == OK
&& (**arg == '['
|| (**arg == '.' && rettv->v_type == VAR_DICT)
|| (**arg == '(' && (!evaluate || rettv->v_type == VAR_FUNC)))
&& !vim_iswhite(*(*arg - 1)))
{
if (**arg == '(')
{
/* need to copy the funcref so that we can clear rettv */
if (evaluate)
{
functv = *rettv;
rettv->v_type = VAR_UNKNOWN;
/* Invoke the function. Recursive! */
s = functv.vval.v_string;
}
else
s = (char_u *)"";
ret = get_func_tv(s, (int)STRLEN(s), rettv, arg,
curwin->w_cursor.lnum, curwin->w_cursor.lnum,
&len, evaluate, selfdict);
/* Clear the funcref afterwards, so that deleting it while
* evaluating the arguments is possible (see test55). */
if (evaluate)
clear_tv(&functv);
/* Stop the expression evaluation when immediately aborting on
* error, or when an interrupt occurred or an exception was thrown
* but not caught. */
if (aborting())
{
if (ret == OK)
clear_tv(rettv);
ret = FAIL;
}
dict_unref(selfdict);
selfdict = NULL;
}
else /* **arg == '[' || **arg == '.' */
{
dict_unref(selfdict);
if (rettv->v_type == VAR_DICT)
{
selfdict = rettv->vval.v_dict;
if (selfdict != NULL)
++selfdict->dv_refcount;
}
else
selfdict = NULL;
if (eval_index(arg, rettv, evaluate, verbose) == FAIL)
{
clear_tv(rettv);
ret = FAIL;
}
}
}
dict_unref(selfdict);
return ret;
}
/*
* Allocate memory for a variable type-value, and make it empty (0 or NULL
* value).
*/
static typval_T *
alloc_tv()
{
return (typval_T *)alloc_clear((unsigned)sizeof(typval_T));
}
/*
* Allocate memory for a variable type-value, and assign a string to it.
* The string "s" must have been allocated, it is consumed.
* Return NULL for out of memory, the variable otherwise.
*/
static typval_T *
alloc_string_tv(s)
char_u *s;
{
typval_T *rettv;
rettv = alloc_tv();
if (rettv != NULL)
{
rettv->v_type = VAR_STRING;
rettv->vval.v_string = s;
}
else
vim_free(s);
return rettv;
}
/*
* Free the memory for a variable type-value.
*/
void
free_tv(varp)
typval_T *varp;
{
if (varp != NULL)
{
switch (varp->v_type)
{
case VAR_FUNC:
func_unref(varp->vval.v_string);
/*FALLTHROUGH*/
case VAR_STRING:
vim_free(varp->vval.v_string);
break;
case VAR_LIST:
list_unref(varp->vval.v_list);
break;
case VAR_DICT:
dict_unref(varp->vval.v_dict);
break;
case VAR_NUMBER:
#ifdef FEAT_FLOAT
case VAR_FLOAT:
#endif
case VAR_UNKNOWN:
break;
default:
EMSG2(_(e_intern2), "free_tv()");
break;
}
vim_free(varp);
}
}
/*
* Free the memory for a variable value and set the value to NULL or 0.
*/
void
clear_tv(varp)
typval_T *varp;
{
if (varp != NULL)
{
switch (varp->v_type)
{
case VAR_FUNC:
func_unref(varp->vval.v_string);
/*FALLTHROUGH*/
case VAR_STRING:
vim_free(varp->vval.v_string);
varp->vval.v_string = NULL;
break;
case VAR_LIST:
list_unref(varp->vval.v_list);
varp->vval.v_list = NULL;
break;
case VAR_DICT:
dict_unref(varp->vval.v_dict);
varp->vval.v_dict = NULL;
break;
case VAR_NUMBER:
varp->vval.v_number = 0;
break;
#ifdef FEAT_FLOAT
case VAR_FLOAT:
varp->vval.v_float = 0.0;
break;
#endif
case VAR_UNKNOWN:
break;
default:
EMSG2(_(e_intern2), "clear_tv()");
}
varp->v_lock = 0;
}
}
/*
* Set the value of a variable to NULL without freeing items.
*/
static void
init_tv(varp)
typval_T *varp;
{
if (varp != NULL)
vim_memset(varp, 0, sizeof(typval_T));
}
/*
* Get the number value of a variable.
* If it is a String variable, uses vim_str2nr().
* For incompatible types, return 0.
* get_tv_number_chk() is similar to get_tv_number(), but informs the
* caller of incompatible types: it sets *denote to TRUE if "denote"
* is not NULL or returns -1 otherwise.
*/
static long
get_tv_number(varp)
typval_T *varp;
{
int error = FALSE;
return get_tv_number_chk(varp, &error); /* return 0L on error */
}
long
get_tv_number_chk(varp, denote)
typval_T *varp;
int *denote;
{
long n = 0L;
switch (varp->v_type)
{
case VAR_NUMBER:
return (long)(varp->vval.v_number);
#ifdef FEAT_FLOAT
case VAR_FLOAT:
EMSG(_("E805: Using a Float as a Number"));
break;
#endif
case VAR_FUNC:
EMSG(_("E703: Using a Funcref as a Number"));
break;
case VAR_STRING:
if (varp->vval.v_string != NULL)
vim_str2nr(varp->vval.v_string, NULL, NULL,
STR2NR_ALL, &n, NULL, 0);
return n;
case VAR_LIST:
EMSG(_("E745: Using a List as a Number"));
break;
case VAR_DICT:
EMSG(_("E728: Using a Dictionary as a Number"));
break;
default:
EMSG2(_(e_intern2), "get_tv_number()");
break;
}
if (denote == NULL) /* useful for values that must be unsigned */
n = -1;
else
*denote = TRUE;
return n;
}
#ifdef FEAT_FLOAT
static float_T
get_tv_float(varp)
typval_T *varp;
{
switch (varp->v_type)
{
case VAR_NUMBER:
return (float_T)(varp->vval.v_number);
#ifdef FEAT_FLOAT
case VAR_FLOAT:
return varp->vval.v_float;
break;
#endif
case VAR_FUNC:
EMSG(_("E891: Using a Funcref as a Float"));
break;
case VAR_STRING:
EMSG(_("E892: Using a String as a Float"));
break;
case VAR_LIST:
EMSG(_("E893: Using a List as a Float"));
break;
case VAR_DICT:
EMSG(_("E894: Using a Dictionary as a Float"));
break;
default:
EMSG2(_(e_intern2), "get_tv_float()");
break;
}
return 0;
}
#endif
/*
* Get the lnum from the first argument.
* Also accepts ".", "$", etc., but that only works for the current buffer.
* Returns -1 on error.
*/
static linenr_T
get_tv_lnum(argvars)
typval_T *argvars;
{
typval_T rettv;
linenr_T lnum;
lnum = get_tv_number_chk(&argvars[0], NULL);
if (lnum == 0) /* no valid number, try using line() */
{
rettv.v_type = VAR_NUMBER;
f_line(argvars, &rettv);
lnum = rettv.vval.v_number;
clear_tv(&rettv);
}
return lnum;
}
/*
* Get the lnum from the first argument.
* Also accepts "$", then "buf" is used.
* Returns 0 on error.
*/
static linenr_T
get_tv_lnum_buf(argvars, buf)
typval_T *argvars;
buf_T *buf;
{
if (argvars[0].v_type == VAR_STRING
&& argvars[0].vval.v_string != NULL
&& argvars[0].vval.v_string[0] == '$'
&& buf != NULL)
return buf->b_ml.ml_line_count;
return get_tv_number_chk(&argvars[0], NULL);
}
/*
* Get the string value of a variable.
* If it is a Number variable, the number is converted into a string.
* get_tv_string() uses a single, static buffer. YOU CAN ONLY USE IT ONCE!
* get_tv_string_buf() uses a given buffer.
* If the String variable has never been set, return an empty string.
* Never returns NULL;
* get_tv_string_chk() and get_tv_string_buf_chk() are similar, but return
* NULL on error.
*/
static char_u *
get_tv_string(varp)
typval_T *varp;
{
static char_u mybuf[NUMBUFLEN];
return get_tv_string_buf(varp, mybuf);
}
static char_u *
get_tv_string_buf(varp, buf)
typval_T *varp;
char_u *buf;
{
char_u *res = get_tv_string_buf_chk(varp, buf);
return res != NULL ? res : (char_u *)"";
}
/*
* Careful: This uses a single, static buffer. YOU CAN ONLY USE IT ONCE!
*/
char_u *
get_tv_string_chk(varp)
typval_T *varp;
{
static char_u mybuf[NUMBUFLEN];
return get_tv_string_buf_chk(varp, mybuf);
}
static char_u *
get_tv_string_buf_chk(varp, buf)
typval_T *varp;
char_u *buf;
{
switch (varp->v_type)
{
case VAR_NUMBER:
sprintf((char *)buf, "%ld", (long)varp->vval.v_number);
return buf;
case VAR_FUNC:
EMSG(_("E729: using Funcref as a String"));
break;
case VAR_LIST:
EMSG(_("E730: using List as a String"));
break;
case VAR_DICT:
EMSG(_("E731: using Dictionary as a String"));
break;
#ifdef FEAT_FLOAT
case VAR_FLOAT:
EMSG(_(e_float_as_string));
break;
#endif
case VAR_STRING:
if (varp->vval.v_string != NULL)
return varp->vval.v_string;
return (char_u *)"";
default:
EMSG2(_(e_intern2), "get_tv_string_buf()");
break;
}
return NULL;
}
/*
* Find variable "name" in the list of variables.
* Return a pointer to it if found, NULL if not found.
* Careful: "a:0" variables don't have a name.
* When "htp" is not NULL we are writing to the variable, set "htp" to the
* hashtab_T used.
*/
static dictitem_T *
find_var(name, htp, no_autoload)
char_u *name;
hashtab_T **htp;
int no_autoload;
{
char_u *varname;
hashtab_T *ht;
ht = find_var_ht(name, &varname);
if (htp != NULL)
*htp = ht;
if (ht == NULL)
return NULL;
return find_var_in_ht(ht, *name, varname, no_autoload || htp != NULL);
}
/*
* Find variable "varname" in hashtab "ht" with name "htname".
* Returns NULL if not found.
*/
static dictitem_T *
find_var_in_ht(ht, htname, varname, no_autoload)
hashtab_T *ht;
int htname;
char_u *varname;
int no_autoload;
{
hashitem_T *hi;
if (*varname == NUL)
{
/* Must be something like "s:", otherwise "ht" would be NULL. */
switch (htname)
{
case 's': return &SCRIPT_SV(current_SID)->sv_var;
case 'g': return &globvars_var;
case 'v': return &vimvars_var;
case 'b': return &curbuf->b_bufvar;
case 'w': return &curwin->w_winvar;
#ifdef FEAT_WINDOWS
case 't': return &curtab->tp_winvar;
#endif
case 'l': return current_funccal == NULL
? NULL : &current_funccal->l_vars_var;
case 'a': return current_funccal == NULL
? NULL : &current_funccal->l_avars_var;
}
return NULL;
}
hi = hash_find(ht, varname);
if (HASHITEM_EMPTY(hi))
{
/* For global variables we may try auto-loading the script. If it
* worked find the variable again. Don't auto-load a script if it was
* loaded already, otherwise it would be loaded every time when
* checking if a function name is a Funcref variable. */
if (ht == &globvarht && !no_autoload)
{
/* Note: script_autoload() may make "hi" invalid. It must either
* be obtained again or not used. */
if (!script_autoload(varname, FALSE) || aborting())
return NULL;
hi = hash_find(ht, varname);
}
if (HASHITEM_EMPTY(hi))
return NULL;
}
return HI2DI(hi);
}
/*
* Find the hashtab used for a variable name.
* Return NULL if the name is not valid.
* Set "varname" to the start of name without ':'.
*/
static hashtab_T *
find_var_ht(name, varname)
char_u *name;
char_u **varname;
{
hashitem_T *hi;
if (name[0] == NUL)
return NULL;
if (name[1] != ':')
{
/* The name must not start with a colon or #. */
if (name[0] == ':' || name[0] == AUTOLOAD_CHAR)
return NULL;
*varname = name;
/* "version" is "v:version" in all scopes */
hi = hash_find(&compat_hashtab, name);
if (!HASHITEM_EMPTY(hi))
return &compat_hashtab;
if (current_funccal == NULL)
return &globvarht; /* global variable */
return &get_funccal()->l_vars.dv_hashtab; /* l: variable */
}
*varname = name + 2;
if (*name == 'g') /* global variable */
return &globvarht;
/* There must be no ':' or '#' in the rest of the name, unless g: is used
*/
if (vim_strchr(name + 2, ':') != NULL
|| vim_strchr(name + 2, AUTOLOAD_CHAR) != NULL)
return NULL;
if (*name == 'b') /* buffer variable */
return &curbuf->b_vars->dv_hashtab;
if (*name == 'w') /* window variable */
return &curwin->w_vars->dv_hashtab;
#ifdef FEAT_WINDOWS
if (*name == 't') /* tab page variable */
return &curtab->tp_vars->dv_hashtab;
#endif
if (*name == 'v') /* v: variable */
return &vimvarht;
if (*name == 'a' && current_funccal != NULL) /* function argument */
return &get_funccal()->l_avars.dv_hashtab;
if (*name == 'l' && current_funccal != NULL) /* local function variable */
return &get_funccal()->l_vars.dv_hashtab;
if (*name == 's' /* script variable */
&& current_SID > 0 && current_SID <= ga_scripts.ga_len)
return &SCRIPT_VARS(current_SID);
return NULL;
}
/*
* Get function call environment based on bactrace debug level
*/
static funccall_T *
get_funccal()
{
int i;
funccall_T *funccal;
funccall_T *temp_funccal;
funccal = current_funccal;
if (debug_backtrace_level > 0)
{
for (i = 0; i < debug_backtrace_level; i++)
{
temp_funccal = funccal->caller;
if (temp_funccal)
funccal = temp_funccal;
else
/* backtrace level overflow. reset to max */
debug_backtrace_level = i;
}
}
return funccal;
}
/*
* Get the string value of a (global/local) variable.
* Note: see get_tv_string() for how long the pointer remains valid.
* Returns NULL when it doesn't exist.
*/
char_u *
get_var_value(name)
char_u *name;
{
dictitem_T *v;
v = find_var(name, NULL, FALSE);
if (v == NULL)
return NULL;
return get_tv_string(&v->di_tv);
}
/*
* Allocate a new hashtab for a sourced script. It will be used while
* sourcing this script and when executing functions defined in the script.
*/
void
new_script_vars(id)
scid_T id;
{
int i;
hashtab_T *ht;
scriptvar_T *sv;
if (ga_grow(&ga_scripts, (int)(id - ga_scripts.ga_len)) == OK)
{
/* Re-allocating ga_data means that an ht_array pointing to
* ht_smallarray becomes invalid. We can recognize this: ht_mask is
* at its init value. Also reset "v_dict", it's always the same. */
for (i = 1; i <= ga_scripts.ga_len; ++i)
{
ht = &SCRIPT_VARS(i);
if (ht->ht_mask == HT_INIT_SIZE - 1)
ht->ht_array = ht->ht_smallarray;
sv = SCRIPT_SV(i);
sv->sv_var.di_tv.vval.v_dict = &sv->sv_dict;
}
while (ga_scripts.ga_len < id)
{
sv = SCRIPT_SV(ga_scripts.ga_len + 1) =
(scriptvar_T *)alloc_clear(sizeof(scriptvar_T));
init_var_dict(&sv->sv_dict, &sv->sv_var, VAR_SCOPE);
++ga_scripts.ga_len;
}
}
}
/*
* Initialize dictionary "dict" as a scope and set variable "dict_var" to
* point to it.
*/
void
init_var_dict(dict, dict_var, scope)
dict_T *dict;
dictitem_T *dict_var;
int scope;
{
hash_init(&dict->dv_hashtab);
dict->dv_lock = 0;
dict->dv_scope = scope;
dict->dv_refcount = DO_NOT_FREE_CNT;
dict->dv_copyID = 0;
dict_var->di_tv.vval.v_dict = dict;
dict_var->di_tv.v_type = VAR_DICT;
dict_var->di_tv.v_lock = VAR_FIXED;
dict_var->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
dict_var->di_key[0] = NUL;
}
/*
* Unreference a dictionary initialized by init_var_dict().
*/
void
unref_var_dict(dict)
dict_T *dict;
{
/* Now the dict needs to be freed if no one else is using it, go back to
* normal reference counting. */
dict->dv_refcount -= DO_NOT_FREE_CNT - 1;
dict_unref(dict);
}
/*
* Clean up a list of internal variables.
* Frees all allocated variables and the value they contain.
* Clears hashtab "ht", does not free it.
*/
void
vars_clear(ht)
hashtab_T *ht;
{
vars_clear_ext(ht, TRUE);
}
/*
* Like vars_clear(), but only free the value if "free_val" is TRUE.
*/
static void
vars_clear_ext(ht, free_val)
hashtab_T *ht;
int free_val;
{
int todo;
hashitem_T *hi;
dictitem_T *v;
hash_lock(ht);
todo = (int)ht->ht_used;
for (hi = ht->ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
/* Free the variable. Don't remove it from the hashtab,
* ht_array might change then. hash_clear() takes care of it
* later. */
v = HI2DI(hi);
if (free_val)
clear_tv(&v->di_tv);
if (v->di_flags & DI_FLAGS_ALLOC)
vim_free(v);
}
}
hash_clear(ht);
ht->ht_used = 0;
}
/*
* Delete a variable from hashtab "ht" at item "hi".
* Clear the variable value and free the dictitem.
*/
static void
delete_var(ht, hi)
hashtab_T *ht;
hashitem_T *hi;
{
dictitem_T *di = HI2DI(hi);
hash_remove(ht, hi);
clear_tv(&di->di_tv);
vim_free(di);
}
/*
* List the value of one internal variable.
*/
static void
list_one_var(v, prefix, first)
dictitem_T *v;
char_u *prefix;
int *first;
{
char_u *tofree;
char_u *s;
char_u numbuf[NUMBUFLEN];
current_copyID += COPYID_INC;
s = echo_string(&v->di_tv, &tofree, numbuf, current_copyID);
list_one_var_a(prefix, v->di_key, v->di_tv.v_type,
s == NULL ? (char_u *)"" : s, first);
vim_free(tofree);
}
static void
list_one_var_a(prefix, name, type, string, first)
char_u *prefix;
char_u *name;
int type;
char_u *string;
int *first; /* when TRUE clear rest of screen and set to FALSE */
{
/* don't use msg() or msg_attr() to avoid overwriting "v:statusmsg" */
msg_start();
msg_puts(prefix);
if (name != NULL) /* "a:" vars don't have a name stored */
msg_puts(name);
msg_putchar(' ');
msg_advance(22);
if (type == VAR_NUMBER)
msg_putchar('#');
else if (type == VAR_FUNC)
msg_putchar('*');
else if (type == VAR_LIST)
{
msg_putchar('[');
if (*string == '[')
++string;
}
else if (type == VAR_DICT)
{
msg_putchar('{');
if (*string == '{')
++string;
}
else
msg_putchar(' ');
msg_outtrans(string);
if (type == VAR_FUNC)
msg_puts((char_u *)"()");
if (*first)
{
msg_clr_eos();
*first = FALSE;
}
}
/*
* Set variable "name" to value in "tv".
* If the variable already exists, the value is updated.
* Otherwise the variable is created.
*/
static void
set_var(name, tv, copy)
char_u *name;
typval_T *tv;
int copy; /* make copy of value in "tv" */
{
dictitem_T *v;
char_u *varname;
hashtab_T *ht;
ht = find_var_ht(name, &varname);
if (ht == NULL || *varname == NUL)
{
EMSG2(_(e_illvar), name);
return;
}
v = find_var_in_ht(ht, 0, varname, TRUE);
if (tv->v_type == VAR_FUNC && var_check_func_name(name, v == NULL))
return;
if (v != NULL)
{
/* existing variable, need to clear the value */
if (var_check_ro(v->di_flags, name, FALSE)
|| tv_check_lock(v->di_tv.v_lock, name, FALSE))
return;
if (v->di_tv.v_type != tv->v_type
&& !((v->di_tv.v_type == VAR_STRING
|| v->di_tv.v_type == VAR_NUMBER)
&& (tv->v_type == VAR_STRING
|| tv->v_type == VAR_NUMBER))
#ifdef FEAT_FLOAT
&& !((v->di_tv.v_type == VAR_NUMBER
|| v->di_tv.v_type == VAR_FLOAT)
&& (tv->v_type == VAR_NUMBER
|| tv->v_type == VAR_FLOAT))
#endif
)
{
EMSG2(_("E706: Variable type mismatch for: %s"), name);
return;
}
/*
* Handle setting internal v: variables separately where needed to
* prevent changing the type.
*/
if (ht == &vimvarht)
{
if (v->di_tv.v_type == VAR_STRING)
{
vim_free(v->di_tv.vval.v_string);
if (copy || tv->v_type != VAR_STRING)
v->di_tv.vval.v_string = vim_strsave(get_tv_string(tv));
else
{
/* Take over the string to avoid an extra alloc/free. */
v->di_tv.vval.v_string = tv->vval.v_string;
tv->vval.v_string = NULL;
}
return;
}
else if (v->di_tv.v_type == VAR_NUMBER)
{
v->di_tv.vval.v_number = get_tv_number(tv);
if (STRCMP(varname, "searchforward") == 0)
set_search_direction(v->di_tv.vval.v_number ? '/' : '?');
#ifdef FEAT_SEARCH_EXTRA
else if (STRCMP(varname, "hlsearch") == 0)
{
no_hlsearch = !v->di_tv.vval.v_number;
redraw_all_later(SOME_VALID);
}
#endif
return;
}
else if (v->di_tv.v_type != tv->v_type)
EMSG2(_(e_intern2), "set_var()");
}
clear_tv(&v->di_tv);
}
else /* add a new variable */
{
/* Can't add "v:" variable. */
if (ht == &vimvarht)
{
EMSG2(_(e_illvar), name);
return;
}
/* Make sure the variable name is valid. */
if (!valid_varname(varname))
return;
v = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T)
+ STRLEN(varname)));
if (v == NULL)
return;
STRCPY(v->di_key, varname);
if (hash_add(ht, DI2HIKEY(v)) == FAIL)
{
vim_free(v);
return;
}
v->di_flags = DI_FLAGS_ALLOC;
}
if (copy || tv->v_type == VAR_NUMBER || tv->v_type == VAR_FLOAT)
copy_tv(tv, &v->di_tv);
else
{
v->di_tv = *tv;
v->di_tv.v_lock = 0;
init_tv(tv);
}
}
/*
* Return TRUE if di_flags "flags" indicates variable "name" is read-only.
* Also give an error message.
*/
static int
var_check_ro(flags, name, use_gettext)
int flags;
char_u *name;
int use_gettext;
{
if (flags & DI_FLAGS_RO)
{
EMSG2(_(e_readonlyvar), use_gettext ? (char_u *)_(name) : name);
return TRUE;
}
if ((flags & DI_FLAGS_RO_SBX) && sandbox)
{
EMSG2(_(e_readonlysbx), use_gettext ? (char_u *)_(name) : name);
return TRUE;
}
return FALSE;
}
/*
* Return TRUE if di_flags "flags" indicates variable "name" is fixed.
* Also give an error message.
*/
static int
var_check_fixed(flags, name, use_gettext)
int flags;
char_u *name;
int use_gettext;
{
if (flags & DI_FLAGS_FIX)
{
EMSG2(_("E795: Cannot delete variable %s"),
use_gettext ? (char_u *)_(name) : name);
return TRUE;
}
return FALSE;
}
/*
* Check if a funcref is assigned to a valid variable name.
* Return TRUE and give an error if not.
*/
static int
var_check_func_name(name, new_var)
char_u *name; /* points to start of variable name */
int new_var; /* TRUE when creating the variable */
{
/* Allow for w: b: s: and t:. */
if (!(vim_strchr((char_u *)"wbst", name[0]) != NULL && name[1] == ':')
&& !ASCII_ISUPPER((name[0] != NUL && name[1] == ':')
? name[2] : name[0]))
{
EMSG2(_("E704: Funcref variable name must start with a capital: %s"),
name);
return TRUE;
}
/* Don't allow hiding a function. When "v" is not NULL we might be
* assigning another function to the same var, the type is checked
* below. */
if (new_var && function_exists(name))
{
EMSG2(_("E705: Variable name conflicts with existing function: %s"),
name);
return TRUE;
}
return FALSE;
}
/*
* Check if a variable name is valid.
* Return FALSE and give an error if not.
*/
static int
valid_varname(varname)
char_u *varname;
{
char_u *p;
for (p = varname; *p != NUL; ++p)
if (!eval_isnamec1(*p) && (p == varname || !VIM_ISDIGIT(*p))
&& *p != AUTOLOAD_CHAR)
{
EMSG2(_(e_illvar), varname);
return FALSE;
}
return TRUE;
}
/*
* Return TRUE if typeval "tv" is set to be locked (immutable).
* Also give an error message, using "name" or _("name") when use_gettext is
* TRUE.
*/
static int
tv_check_lock(lock, name, use_gettext)
int lock;
char_u *name;
int use_gettext;
{
if (lock & VAR_LOCKED)
{
EMSG2(_("E741: Value is locked: %s"),
name == NULL ? (char_u *)_("Unknown")
: use_gettext ? (char_u *)_(name)
: name);
return TRUE;
}
if (lock & VAR_FIXED)
{
EMSG2(_("E742: Cannot change value of %s"),
name == NULL ? (char_u *)_("Unknown")
: use_gettext ? (char_u *)_(name)
: name);
return TRUE;
}
return FALSE;
}
/*
* Copy the values from typval_T "from" to typval_T "to".
* When needed allocates string or increases reference count.
* Does not make a copy of a list or dict but copies the reference!
* It is OK for "from" and "to" to point to the same item. This is used to
* make a copy later.
*/
void
copy_tv(from, to)
typval_T *from;
typval_T *to;
{
to->v_type = from->v_type;
to->v_lock = 0;
switch (from->v_type)
{
case VAR_NUMBER:
to->vval.v_number = from->vval.v_number;
break;
#ifdef FEAT_FLOAT
case VAR_FLOAT:
to->vval.v_float = from->vval.v_float;
break;
#endif
case VAR_STRING:
case VAR_FUNC:
if (from->vval.v_string == NULL)
to->vval.v_string = NULL;
else
{
to->vval.v_string = vim_strsave(from->vval.v_string);
if (from->v_type == VAR_FUNC)
func_ref(to->vval.v_string);
}
break;
case VAR_LIST:
if (from->vval.v_list == NULL)
to->vval.v_list = NULL;
else
{
to->vval.v_list = from->vval.v_list;
++to->vval.v_list->lv_refcount;
}
break;
case VAR_DICT:
if (from->vval.v_dict == NULL)
to->vval.v_dict = NULL;
else
{
to->vval.v_dict = from->vval.v_dict;
++to->vval.v_dict->dv_refcount;
}
break;
default:
EMSG2(_(e_intern2), "copy_tv()");
break;
}
}
/*
* Make a copy of an item.
* Lists and Dictionaries are also copied. A deep copy if "deep" is set.
* For deepcopy() "copyID" is zero for a full copy or the ID for when a
* reference to an already copied list/dict can be used.
* Returns FAIL or OK.
*/
static int
item_copy(from, to, deep, copyID)
typval_T *from;
typval_T *to;
int deep;
int copyID;
{
static int recurse = 0;
int ret = OK;
if (recurse >= DICT_MAXNEST)
{
EMSG(_("E698: variable nested too deep for making a copy"));
return FAIL;
}
++recurse;
switch (from->v_type)
{
case VAR_NUMBER:
#ifdef FEAT_FLOAT
case VAR_FLOAT:
#endif
case VAR_STRING:
case VAR_FUNC:
copy_tv(from, to);
break;
case VAR_LIST:
to->v_type = VAR_LIST;
to->v_lock = 0;
if (from->vval.v_list == NULL)
to->vval.v_list = NULL;
else if (copyID != 0 && from->vval.v_list->lv_copyID == copyID)
{
/* use the copy made earlier */
to->vval.v_list = from->vval.v_list->lv_copylist;
++to->vval.v_list->lv_refcount;
}
else
to->vval.v_list = list_copy(from->vval.v_list, deep, copyID);
if (to->vval.v_list == NULL)
ret = FAIL;
break;
case VAR_DICT:
to->v_type = VAR_DICT;
to->v_lock = 0;
if (from->vval.v_dict == NULL)
to->vval.v_dict = NULL;
else if (copyID != 0 && from->vval.v_dict->dv_copyID == copyID)
{
/* use the copy made earlier */
to->vval.v_dict = from->vval.v_dict->dv_copydict;
++to->vval.v_dict->dv_refcount;
}
else
to->vval.v_dict = dict_copy(from->vval.v_dict, deep, copyID);
if (to->vval.v_dict == NULL)
ret = FAIL;
break;
default:
EMSG2(_(e_intern2), "item_copy()");
ret = FAIL;
}
--recurse;
return ret;
}
/*
* ":echo expr1 ..." print each argument separated with a space, add a
* newline at the end.
* ":echon expr1 ..." print each argument plain.
*/
void
ex_echo(eap)
exarg_T *eap;
{
char_u *arg = eap->arg;
typval_T rettv;
char_u *tofree;
char_u *p;
int needclr = TRUE;
int atstart = TRUE;
char_u numbuf[NUMBUFLEN];
if (eap->skip)
++emsg_skip;
while (*arg != NUL && *arg != '|' && *arg != '\n' && !got_int)
{
/* If eval1() causes an error message the text from the command may
* still need to be cleared. E.g., "echo 22,44". */
need_clr_eos = needclr;
p = arg;
if (eval1(&arg, &rettv, !eap->skip) == FAIL)
{
/*
* Report the invalid expression unless the expression evaluation
* has been cancelled due to an aborting error, an interrupt, or an
* exception.
*/
if (!aborting())
EMSG2(_(e_invexpr2), p);
need_clr_eos = FALSE;
break;
}
need_clr_eos = FALSE;
if (!eap->skip)
{
if (atstart)
{
atstart = FALSE;
/* Call msg_start() after eval1(), evaluating the expression
* may cause a message to appear. */
if (eap->cmdidx == CMD_echo)
{
/* Mark the saved text as finishing the line, so that what
* follows is displayed on a new line when scrolling back
* at the more prompt. */
msg_sb_eol();
msg_start();
}
}
else if (eap->cmdidx == CMD_echo)
msg_puts_attr((char_u *)" ", echo_attr);
current_copyID += COPYID_INC;
p = echo_string(&rettv, &tofree, numbuf, current_copyID);
if (p != NULL)
for ( ; *p != NUL && !got_int; ++p)
{
if (*p == '\n' || *p == '\r' || *p == TAB)
{
if (*p != TAB && needclr)
{
/* remove any text still there from the command */
msg_clr_eos();
needclr = FALSE;
}
msg_putchar_attr(*p, echo_attr);
}
else
{
#ifdef FEAT_MBYTE
if (has_mbyte)
{
int i = (*mb_ptr2len)(p);
(void)msg_outtrans_len_attr(p, i, echo_attr);
p += i - 1;
}
else
#endif
(void)msg_outtrans_len_attr(p, 1, echo_attr);
}
}
vim_free(tofree);
}
clear_tv(&rettv);
arg = skipwhite(arg);
}
eap->nextcmd = check_nextcmd(arg);
if (eap->skip)
--emsg_skip;
else
{
/* remove text that may still be there from the command */
if (needclr)
msg_clr_eos();
if (eap->cmdidx == CMD_echo)
msg_end();
}
}
/*
* ":echohl {name}".
*/
void
ex_echohl(eap)
exarg_T *eap;
{
int id;
id = syn_name2id(eap->arg);
if (id == 0)
echo_attr = 0;
else
echo_attr = syn_id2attr(id);
}
/*
* ":execute expr1 ..." execute the result of an expression.
* ":echomsg expr1 ..." Print a message
* ":echoerr expr1 ..." Print an error
* Each gets spaces around each argument and a newline at the end for
* echo commands
*/
void
ex_execute(eap)
exarg_T *eap;
{
char_u *arg = eap->arg;
typval_T rettv;
int ret = OK;
char_u *p;
garray_T ga;
int len;
int save_did_emsg;
ga_init2(&ga, 1, 80);
if (eap->skip)
++emsg_skip;
while (*arg != NUL && *arg != '|' && *arg != '\n')
{
p = arg;
if (eval1(&arg, &rettv, !eap->skip) == FAIL)
{
/*
* Report the invalid expression unless the expression evaluation
* has been cancelled due to an aborting error, an interrupt, or an
* exception.
*/
if (!aborting())
EMSG2(_(e_invexpr2), p);
ret = FAIL;
break;
}
if (!eap->skip)
{
p = get_tv_string(&rettv);
len = (int)STRLEN(p);
if (ga_grow(&ga, len + 2) == FAIL)
{
clear_tv(&rettv);
ret = FAIL;
break;
}
if (ga.ga_len)
((char_u *)(ga.ga_data))[ga.ga_len++] = ' ';
STRCPY((char_u *)(ga.ga_data) + ga.ga_len, p);
ga.ga_len += len;
}
clear_tv(&rettv);
arg = skipwhite(arg);
}
if (ret != FAIL && ga.ga_data != NULL)
{
if (eap->cmdidx == CMD_echomsg)
{
MSG_ATTR(ga.ga_data, echo_attr);
out_flush();
}
else if (eap->cmdidx == CMD_echoerr)
{
/* We don't want to abort following commands, restore did_emsg. */
save_did_emsg = did_emsg;
EMSG((char_u *)ga.ga_data);
if (!force_abort)
did_emsg = save_did_emsg;
}
else if (eap->cmdidx == CMD_execute)
do_cmdline((char_u *)ga.ga_data,
eap->getline, eap->cookie, DOCMD_NOWAIT|DOCMD_VERBOSE);
}
ga_clear(&ga);
if (eap->skip)
--emsg_skip;
eap->nextcmd = check_nextcmd(arg);
}
/*
* Skip over the name of an option: "&option", "&g:option" or "&l:option".
* "arg" points to the "&" or '+' when called, to "option" when returning.
* Returns NULL when no option name found. Otherwise pointer to the char
* after the option name.
*/
static char_u *
find_option_end(arg, opt_flags)
char_u **arg;
int *opt_flags;
{
char_u *p = *arg;
++p;
if (*p == 'g' && p[1] == ':')
{
*opt_flags = OPT_GLOBAL;
p += 2;
}
else if (*p == 'l' && p[1] == ':')
{
*opt_flags = OPT_LOCAL;
p += 2;
}
else
*opt_flags = 0;
if (!ASCII_ISALPHA(*p))
return NULL;
*arg = p;
if (p[0] == 't' && p[1] == '_' && p[2] != NUL && p[3] != NUL)
p += 4; /* termcap option */
else
while (ASCII_ISALPHA(*p))
++p;
return p;
}
/*
* ":function"
*/
void
ex_function(eap)
exarg_T *eap;
{
char_u *theline;
int i;
int j;
int c;
int saved_did_emsg;
int saved_wait_return = need_wait_return;
char_u *name = NULL;
char_u *p;
char_u *arg;
char_u *line_arg = NULL;
garray_T newargs;
garray_T newlines;
int varargs = FALSE;
int mustend = FALSE;
int flags = 0;
ufunc_T *fp;
int indent;
int nesting;
char_u *skip_until = NULL;
dictitem_T *v;
funcdict_T fudi;
static int func_nr = 0; /* number for nameless function */
int paren;
hashtab_T *ht;
int todo;
hashitem_T *hi;
int sourcing_lnum_off;
/*
* ":function" without argument: list functions.
*/
if (ends_excmd(*eap->arg))
{
if (!eap->skip)
{
todo = (int)func_hashtab.ht_used;
for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
fp = HI2UF(hi);
if (!isdigit(*fp->uf_name))
list_func_head(fp, FALSE);
}
}
}
eap->nextcmd = check_nextcmd(eap->arg);
return;
}
/*
* ":function /pat": list functions matching pattern.
*/
if (*eap->arg == '/')
{
p = skip_regexp(eap->arg + 1, '/', TRUE, NULL);
if (!eap->skip)
{
regmatch_T regmatch;
c = *p;
*p = NUL;
regmatch.regprog = vim_regcomp(eap->arg + 1, RE_MAGIC);
*p = c;
if (regmatch.regprog != NULL)
{
regmatch.rm_ic = p_ic;
todo = (int)func_hashtab.ht_used;
for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
fp = HI2UF(hi);
if (!isdigit(*fp->uf_name)
&& vim_regexec(&regmatch, fp->uf_name, 0))
list_func_head(fp, FALSE);
}
}
vim_regfree(regmatch.regprog);
}
}
if (*p == '/')
++p;
eap->nextcmd = check_nextcmd(p);
return;
}
/*
* Get the function name. There are these situations:
* func normal function name
* "name" == func, "fudi.fd_dict" == NULL
* dict.func new dictionary entry
* "name" == NULL, "fudi.fd_dict" set,
* "fudi.fd_di" == NULL, "fudi.fd_newkey" == func
* dict.func existing dict entry with a Funcref
* "name" == func, "fudi.fd_dict" set,
* "fudi.fd_di" set, "fudi.fd_newkey" == NULL
* dict.func existing dict entry that's not a Funcref
* "name" == NULL, "fudi.fd_dict" set,
* "fudi.fd_di" set, "fudi.fd_newkey" == NULL
* s:func script-local function name
* g:func global function name, same as "func"
*/
p = eap->arg;
name = trans_function_name(&p, eap->skip, 0, &fudi);
paren = (vim_strchr(p, '(') != NULL);
if (name == NULL && (fudi.fd_dict == NULL || !paren) && !eap->skip)
{
/*
* Return on an invalid expression in braces, unless the expression
* evaluation has been cancelled due to an aborting error, an
* interrupt, or an exception.
*/
if (!aborting())
{
if (!eap->skip && fudi.fd_newkey != NULL)
EMSG2(_(e_dictkey), fudi.fd_newkey);
vim_free(fudi.fd_newkey);
return;
}
else
eap->skip = TRUE;
}
/* An error in a function call during evaluation of an expression in magic
* braces should not cause the function not to be defined. */
saved_did_emsg = did_emsg;
did_emsg = FALSE;
/*
* ":function func" with only function name: list function.
*/
if (!paren)
{
if (!ends_excmd(*skipwhite(p)))
{
EMSG(_(e_trailing));
goto ret_free;
}
eap->nextcmd = check_nextcmd(p);
if (eap->nextcmd != NULL)
*p = NUL;
if (!eap->skip && !got_int)
{
fp = find_func(name);
if (fp != NULL)
{
list_func_head(fp, TRUE);
for (j = 0; j < fp->uf_lines.ga_len && !got_int; ++j)
{
if (FUNCLINE(fp, j) == NULL)
continue;
msg_putchar('\n');
msg_outnum((long)(j + 1));
if (j < 9)
msg_putchar(' ');
if (j < 99)
msg_putchar(' ');
msg_prt_line(FUNCLINE(fp, j), FALSE);
out_flush(); /* show a line at a time */
ui_breakcheck();
}
if (!got_int)
{
msg_putchar('\n');
msg_puts((char_u *)" endfunction");
}
}
else
emsg_funcname(N_("E123: Undefined function: %s"), name);
}
goto ret_free;
}
/*
* ":function name(arg1, arg2)" Define function.
*/
p = skipwhite(p);
if (*p != '(')
{
if (!eap->skip)
{
EMSG2(_("E124: Missing '(': %s"), eap->arg);
goto ret_free;
}
/* attempt to continue by skipping some text */
if (vim_strchr(p, '(') != NULL)
p = vim_strchr(p, '(');
}
p = skipwhite(p + 1);
ga_init2(&newargs, (int)sizeof(char_u *), 3);
ga_init2(&newlines, (int)sizeof(char_u *), 3);
if (!eap->skip)
{
/* Check the name of the function. Unless it's a dictionary function
* (that we are overwriting). */
if (name != NULL)
arg = name;
else
arg = fudi.fd_newkey;
if (arg != NULL && (fudi.fd_di == NULL
|| fudi.fd_di->di_tv.v_type != VAR_FUNC))
{
if (*arg == K_SPECIAL)
j = 3;
else
j = 0;
while (arg[j] != NUL && (j == 0 ? eval_isnamec1(arg[j])
: eval_isnamec(arg[j])))
++j;
if (arg[j] != NUL)
emsg_funcname((char *)e_invarg2, arg);
}
/* Disallow using the g: dict. */
if (fudi.fd_dict != NULL && fudi.fd_dict->dv_scope == VAR_DEF_SCOPE)
EMSG(_("E862: Cannot use g: here"));
}
/*
* Isolate the arguments: "arg1, arg2, ...)"
*/
while (*p != ')')
{
if (p[0] == '.' && p[1] == '.' && p[2] == '.')
{
varargs = TRUE;
p += 3;
mustend = TRUE;
}
else
{
arg = p;
while (ASCII_ISALNUM(*p) || *p == '_')
++p;
if (arg == p || isdigit(*arg)
|| (p - arg == 9 && STRNCMP(arg, "firstline", 9) == 0)
|| (p - arg == 8 && STRNCMP(arg, "lastline", 8) == 0))
{
if (!eap->skip)
EMSG2(_("E125: Illegal argument: %s"), arg);
break;
}
if (ga_grow(&newargs, 1) == FAIL)
goto erret;
c = *p;
*p = NUL;
arg = vim_strsave(arg);
if (arg == NULL)
goto erret;
/* Check for duplicate argument name. */
for (i = 0; i < newargs.ga_len; ++i)
if (STRCMP(((char_u **)(newargs.ga_data))[i], arg) == 0)
{
EMSG2(_("E853: Duplicate argument name: %s"), arg);
vim_free(arg);
goto erret;
}
((char_u **)(newargs.ga_data))[newargs.ga_len] = arg;
*p = c;
newargs.ga_len++;
if (*p == ',')
++p;
else
mustend = TRUE;
}
p = skipwhite(p);
if (mustend && *p != ')')
{
if (!eap->skip)
EMSG2(_(e_invarg2), eap->arg);
break;
}
}
if (*p != ')')
goto erret;
++p; /* skip the ')' */
/* find extra arguments "range", "dict" and "abort" */
for (;;)
{
p = skipwhite(p);
if (STRNCMP(p, "range", 5) == 0)
{
flags |= FC_RANGE;
p += 5;
}
else if (STRNCMP(p, "dict", 4) == 0)
{
flags |= FC_DICT;
p += 4;
}
else if (STRNCMP(p, "abort", 5) == 0)
{
flags |= FC_ABORT;
p += 5;
}
else
break;
}
/* When there is a line break use what follows for the function body.
* Makes 'exe "func Test()\n...\nendfunc"' work. */
if (*p == '\n')
line_arg = p + 1;
else if (*p != NUL && *p != '"' && !eap->skip && !did_emsg)
EMSG(_(e_trailing));
/*
* Read the body of the function, until ":endfunction" is found.
*/
if (KeyTyped)
{
/* Check if the function already exists, don't let the user type the
* whole function before telling him it doesn't work! For a script we
* need to skip the body to be able to find what follows. */
if (!eap->skip && !eap->forceit)
{
if (fudi.fd_dict != NULL && fudi.fd_newkey == NULL)
EMSG(_(e_funcdict));
else if (name != NULL && find_func(name) != NULL)
emsg_funcname(e_funcexts, name);
}
if (!eap->skip && did_emsg)
goto erret;
msg_putchar('\n'); /* don't overwrite the function name */
cmdline_row = msg_row;
}
indent = 2;
nesting = 0;
for (;;)
{
if (KeyTyped)
{
msg_scroll = TRUE;
saved_wait_return = FALSE;
}
need_wait_return = FALSE;
sourcing_lnum_off = sourcing_lnum;
if (line_arg != NULL)
{
/* Use eap->arg, split up in parts by line breaks. */
theline = line_arg;
p = vim_strchr(theline, '\n');
if (p == NULL)
line_arg += STRLEN(line_arg);
else
{
*p = NUL;
line_arg = p + 1;
}
}
else if (eap->getline == NULL)
theline = getcmdline(':', 0L, indent);
else
theline = eap->getline(':', eap->cookie, indent);
if (KeyTyped)
lines_left = Rows - 1;
if (theline == NULL)
{
EMSG(_("E126: Missing :endfunction"));
goto erret;
}
/* Detect line continuation: sourcing_lnum increased more than one. */
if (sourcing_lnum > sourcing_lnum_off + 1)
sourcing_lnum_off = sourcing_lnum - sourcing_lnum_off - 1;
else
sourcing_lnum_off = 0;
if (skip_until != NULL)
{
/* between ":append" and "." and between ":python <<EOF" and "EOF"
* don't check for ":endfunc". */
if (STRCMP(theline, skip_until) == 0)
{
vim_free(skip_until);
skip_until = NULL;
}
}
else
{
/* skip ':' and blanks*/
for (p = theline; vim_iswhite(*p) || *p == ':'; ++p)
;
/* Check for "endfunction". */
if (checkforcmd(&p, "endfunction", 4) && nesting-- == 0)
{
if (line_arg == NULL)
vim_free(theline);
break;
}
/* Increase indent inside "if", "while", "for" and "try", decrease
* at "end". */
if (indent > 2 && STRNCMP(p, "end", 3) == 0)
indent -= 2;
else if (STRNCMP(p, "if", 2) == 0
|| STRNCMP(p, "wh", 2) == 0
|| STRNCMP(p, "for", 3) == 0
|| STRNCMP(p, "try", 3) == 0)
indent += 2;
/* Check for defining a function inside this function. */
if (checkforcmd(&p, "function", 2))
{
if (*p == '!')
p = skipwhite(p + 1);
p += eval_fname_script(p);
vim_free(trans_function_name(&p, TRUE, 0, NULL));
if (*skipwhite(p) == '(')
{
++nesting;
indent += 2;
}
}
/* Check for ":append" or ":insert". */
p = skip_range(p, NULL);
if ((p[0] == 'a' && (!ASCII_ISALPHA(p[1]) || p[1] == 'p'))
|| (p[0] == 'i'
&& (!ASCII_ISALPHA(p[1]) || (p[1] == 'n'
&& (!ASCII_ISALPHA(p[2]) || (p[2] == 's'))))))
skip_until = vim_strsave((char_u *)".");
/* Check for ":python <<EOF", ":tcl <<EOF", etc. */
arg = skipwhite(skiptowhite(p));
if (arg[0] == '<' && arg[1] =='<'
&& ((p[0] == 'p' && p[1] == 'y'
&& (!ASCII_ISALPHA(p[2]) || p[2] == 't'))
|| (p[0] == 'p' && p[1] == 'e'
&& (!ASCII_ISALPHA(p[2]) || p[2] == 'r'))
|| (p[0] == 't' && p[1] == 'c'
&& (!ASCII_ISALPHA(p[2]) || p[2] == 'l'))
|| (p[0] == 'l' && p[1] == 'u' && p[2] == 'a'
&& !ASCII_ISALPHA(p[3]))
|| (p[0] == 'r' && p[1] == 'u' && p[2] == 'b'
&& (!ASCII_ISALPHA(p[3]) || p[3] == 'y'))
|| (p[0] == 'm' && p[1] == 'z'
&& (!ASCII_ISALPHA(p[2]) || p[2] == 's'))
))
{
/* ":python <<" continues until a dot, like ":append" */
p = skipwhite(arg + 2);
if (*p == NUL)
skip_until = vim_strsave((char_u *)".");
else
skip_until = vim_strsave(p);
}
}
/* Add the line to the function. */
if (ga_grow(&newlines, 1 + sourcing_lnum_off) == FAIL)
{
if (line_arg == NULL)
vim_free(theline);
goto erret;
}
/* Copy the line to newly allocated memory. get_one_sourceline()
* allocates 250 bytes per line, this saves 80% on average. The cost
* is an extra alloc/free. */
p = vim_strsave(theline);
if (p != NULL)
{
if (line_arg == NULL)
vim_free(theline);
theline = p;
}
((char_u **)(newlines.ga_data))[newlines.ga_len++] = theline;
/* Add NULL lines for continuation lines, so that the line count is
* equal to the index in the growarray. */
while (sourcing_lnum_off-- > 0)
((char_u **)(newlines.ga_data))[newlines.ga_len++] = NULL;
/* Check for end of eap->arg. */
if (line_arg != NULL && *line_arg == NUL)
line_arg = NULL;
}
/* Don't define the function when skipping commands or when an error was
* detected. */
if (eap->skip || did_emsg)
goto erret;
/*
* If there are no errors, add the function
*/
if (fudi.fd_dict == NULL)
{
v = find_var(name, &ht, FALSE);
if (v != NULL && v->di_tv.v_type == VAR_FUNC)
{
emsg_funcname(N_("E707: Function name conflicts with variable: %s"),
name);
goto erret;
}
fp = find_func(name);
if (fp != NULL)
{
if (!eap->forceit)
{
emsg_funcname(e_funcexts, name);
goto erret;
}
if (fp->uf_calls > 0)
{
emsg_funcname(N_("E127: Cannot redefine function %s: It is in use"),
name);
goto erret;
}
/* redefine existing function */
ga_clear_strings(&(fp->uf_args));
ga_clear_strings(&(fp->uf_lines));
vim_free(name);
name = NULL;
}
}
else
{
char numbuf[20];
fp = NULL;
if (fudi.fd_newkey == NULL && !eap->forceit)
{
EMSG(_(e_funcdict));
goto erret;
}
if (fudi.fd_di == NULL)
{
/* Can't add a function to a locked dictionary */
if (tv_check_lock(fudi.fd_dict->dv_lock, eap->arg, FALSE))
goto erret;
}
/* Can't change an existing function if it is locked */
else if (tv_check_lock(fudi.fd_di->di_tv.v_lock, eap->arg, FALSE))
goto erret;
/* Give the function a sequential number. Can only be used with a
* Funcref! */
vim_free(name);
sprintf(numbuf, "%d", ++func_nr);
name = vim_strsave((char_u *)numbuf);
if (name == NULL)
goto erret;
}
if (fp == NULL)
{
if (fudi.fd_dict == NULL && vim_strchr(name, AUTOLOAD_CHAR) != NULL)
{
int slen, plen;
char_u *scriptname;
/* Check that the autoload name matches the script name. */
j = FAIL;
if (sourcing_name != NULL)
{
scriptname = autoload_name(name);
if (scriptname != NULL)
{
p = vim_strchr(scriptname, '/');
plen = (int)STRLEN(p);
slen = (int)STRLEN(sourcing_name);
if (slen > plen && fnamecmp(p,
sourcing_name + slen - plen) == 0)
j = OK;
vim_free(scriptname);
}
}
if (j == FAIL)
{
EMSG2(_("E746: Function name does not match script file name: %s"), name);
goto erret;
}
}
fp = (ufunc_T *)alloc((unsigned)(sizeof(ufunc_T) + STRLEN(name)));
if (fp == NULL)
goto erret;
if (fudi.fd_dict != NULL)
{
if (fudi.fd_di == NULL)
{
/* add new dict entry */
fudi.fd_di = dictitem_alloc(fudi.fd_newkey);
if (fudi.fd_di == NULL)
{
vim_free(fp);
goto erret;
}
if (dict_add(fudi.fd_dict, fudi.fd_di) == FAIL)
{
vim_free(fudi.fd_di);
vim_free(fp);
goto erret;
}
}
else
/* overwrite existing dict entry */
clear_tv(&fudi.fd_di->di_tv);
fudi.fd_di->di_tv.v_type = VAR_FUNC;
fudi.fd_di->di_tv.v_lock = 0;
fudi.fd_di->di_tv.vval.v_string = vim_strsave(name);
fp->uf_refcount = 1;
/* behave like "dict" was used */
flags |= FC_DICT;
}
/* insert the new function in the function list */
STRCPY(fp->uf_name, name);
if (hash_add(&func_hashtab, UF2HIKEY(fp)) == FAIL)
{
vim_free(fp);
goto erret;
}
}
fp->uf_args = newargs;
fp->uf_lines = newlines;
#ifdef FEAT_PROFILE
fp->uf_tml_count = NULL;
fp->uf_tml_total = NULL;
fp->uf_tml_self = NULL;
fp->uf_profiling = FALSE;
if (prof_def_func())
func_do_profile(fp);
#endif
fp->uf_varargs = varargs;
fp->uf_flags = flags;
fp->uf_calls = 0;
fp->uf_script_ID = current_SID;
goto ret_free;
erret:
ga_clear_strings(&newargs);
ga_clear_strings(&newlines);
ret_free:
vim_free(skip_until);
vim_free(fudi.fd_newkey);
vim_free(name);
did_emsg |= saved_did_emsg;
need_wait_return |= saved_wait_return;
}
/*
* Get a function name, translating "<SID>" and "<SNR>".
* Also handles a Funcref in a List or Dictionary.
* Returns the function name in allocated memory, or NULL for failure.
* flags:
* TFN_INT: internal function name OK
* TFN_QUIET: be quiet
* TFN_NO_AUTOLOAD: do not use script autoloading
* Advances "pp" to just after the function name (if no error).
*/
static char_u *
trans_function_name(pp, skip, flags, fdp)
char_u **pp;
int skip; /* only find the end, don't evaluate */
int flags;
funcdict_T *fdp; /* return: info about dictionary used */
{
char_u *name = NULL;
char_u *start;
char_u *end;
int lead;
char_u sid_buf[20];
int len;
lval_T lv;
if (fdp != NULL)
vim_memset(fdp, 0, sizeof(funcdict_T));
start = *pp;
/* Check for hard coded <SNR>: already translated function ID (from a user
* command). */
if ((*pp)[0] == K_SPECIAL && (*pp)[1] == KS_EXTRA
&& (*pp)[2] == (int)KE_SNR)
{
*pp += 3;
len = get_id_len(pp) + 3;
return vim_strnsave(start, len);
}
/* A name starting with "<SID>" or "<SNR>" is local to a script. But
* don't skip over "s:", get_lval() needs it for "s:dict.func". */
lead = eval_fname_script(start);
if (lead > 2)
start += lead;
/* Note that TFN_ flags use the same values as GLV_ flags. */
end = get_lval(start, NULL, &lv, FALSE, skip, flags,
lead > 2 ? 0 : FNE_CHECK_START);
if (end == start)
{
if (!skip)
EMSG(_("E129: Function name required"));
goto theend;
}
if (end == NULL || (lv.ll_tv != NULL && (lead > 2 || lv.ll_range)))
{
/*
* Report an invalid expression in braces, unless the expression
* evaluation has been cancelled due to an aborting error, an
* interrupt, or an exception.
*/
if (!aborting())
{
if (end != NULL)
EMSG2(_(e_invarg2), start);
}
else
*pp = find_name_end(start, NULL, NULL, FNE_INCL_BR);
goto theend;
}
if (lv.ll_tv != NULL)
{
if (fdp != NULL)
{
fdp->fd_dict = lv.ll_dict;
fdp->fd_newkey = lv.ll_newkey;
lv.ll_newkey = NULL;
fdp->fd_di = lv.ll_di;
}
if (lv.ll_tv->v_type == VAR_FUNC && lv.ll_tv->vval.v_string != NULL)
{
name = vim_strsave(lv.ll_tv->vval.v_string);
*pp = end;
}
else
{
if (!skip && !(flags & TFN_QUIET) && (fdp == NULL
|| lv.ll_dict == NULL || fdp->fd_newkey == NULL))
EMSG(_(e_funcref));
else
*pp = end;
name = NULL;
}
goto theend;
}
if (lv.ll_name == NULL)
{
/* Error found, but continue after the function name. */
*pp = end;
goto theend;
}
/* Check if the name is a Funcref. If so, use the value. */
if (lv.ll_exp_name != NULL)
{
len = (int)STRLEN(lv.ll_exp_name);
name = deref_func_name(lv.ll_exp_name, &len, flags & TFN_NO_AUTOLOAD);
if (name == lv.ll_exp_name)
name = NULL;
}
else
{
len = (int)(end - *pp);
name = deref_func_name(*pp, &len, flags & TFN_NO_AUTOLOAD);
if (name == *pp)
name = NULL;
}
if (name != NULL)
{
name = vim_strsave(name);
*pp = end;
if (STRNCMP(name, "<SNR>", 5) == 0)
{
/* Change "<SNR>" to the byte sequence. */
name[0] = K_SPECIAL;
name[1] = KS_EXTRA;
name[2] = (int)KE_SNR;
mch_memmove(name + 3, name + 5, STRLEN(name + 5) + 1);
}
goto theend;
}
if (lv.ll_exp_name != NULL)
{
len = (int)STRLEN(lv.ll_exp_name);
if (lead <= 2 && lv.ll_name == lv.ll_exp_name
&& STRNCMP(lv.ll_name, "s:", 2) == 0)
{
/* When there was "s:" already or the name expanded to get a
* leading "s:" then remove it. */
lv.ll_name += 2;
len -= 2;
lead = 2;
}
}
else
{
/* skip over "s:" and "g:" */
if (lead == 2 || (lv.ll_name[0] == 'g' && lv.ll_name[1] == ':'))
lv.ll_name += 2;
len = (int)(end - lv.ll_name);
}
/*
* Copy the function name to allocated memory.
* Accept <SID>name() inside a script, translate into <SNR>123_name().
* Accept <SNR>123_name() outside a script.
*/
if (skip)
lead = 0; /* do nothing */
else if (lead > 0)
{
lead = 3;
if ((lv.ll_exp_name != NULL && eval_fname_sid(lv.ll_exp_name))
|| eval_fname_sid(*pp))
{
/* It's "s:" or "<SID>" */
if (current_SID <= 0)
{
EMSG(_(e_usingsid));
goto theend;
}
sprintf((char *)sid_buf, "%ld_", (long)current_SID);
lead += (int)STRLEN(sid_buf);
}
}
else if (!(flags & TFN_INT) && builtin_function(lv.ll_name, len))
{
EMSG2(_("E128: Function name must start with a capital or \"s:\": %s"),
start);
goto theend;
}
if (!skip && !(flags & TFN_QUIET))
{
char_u *cp = vim_strchr(lv.ll_name, ':');
if (cp != NULL && cp < end)
{
EMSG2(_("E884: Function name cannot contain a colon: %s"), start);
goto theend;
}
}
name = alloc((unsigned)(len + lead + 1));
if (name != NULL)
{
if (lead > 0)
{
name[0] = K_SPECIAL;
name[1] = KS_EXTRA;
name[2] = (int)KE_SNR;
if (lead > 3) /* If it's "<SID>" */
STRCPY(name + 3, sid_buf);
}
mch_memmove(name + lead, lv.ll_name, (size_t)len);
name[lead + len] = NUL;
}
*pp = end;
theend:
clear_lval(&lv);
return name;
}
/*
* Return 5 if "p" starts with "<SID>" or "<SNR>" (ignoring case).
* Return 2 if "p" starts with "s:".
* Return 0 otherwise.
*/
static int
eval_fname_script(p)
char_u *p;
{
/* Use MB_STRICMP() because in Turkish comparing the "I" may not work with
* the standard library function. */
if (p[0] == '<' && (MB_STRNICMP(p + 1, "SID>", 4) == 0
|| MB_STRNICMP(p + 1, "SNR>", 4) == 0))
return 5;
if (p[0] == 's' && p[1] == ':')
return 2;
return 0;
}
/*
* Return TRUE if "p" starts with "<SID>" or "s:".
* Only works if eval_fname_script() returned non-zero for "p"!
*/
static int
eval_fname_sid(p)
char_u *p;
{
return (*p == 's' || TOUPPER_ASC(p[2]) == 'I');
}
/*
* List the head of the function: "name(arg1, arg2)".
*/
static void
list_func_head(fp, indent)
ufunc_T *fp;
int indent;
{
int j;
msg_start();
if (indent)
MSG_PUTS(" ");
MSG_PUTS("function ");
if (fp->uf_name[0] == K_SPECIAL)
{
MSG_PUTS_ATTR("<SNR>", hl_attr(HLF_8));
msg_puts(fp->uf_name + 3);
}
else
msg_puts(fp->uf_name);
msg_putchar('(');
for (j = 0; j < fp->uf_args.ga_len; ++j)
{
if (j)
MSG_PUTS(", ");
msg_puts(FUNCARG(fp, j));
}
if (fp->uf_varargs)
{
if (j)
MSG_PUTS(", ");
MSG_PUTS("...");
}
msg_putchar(')');
if (fp->uf_flags & FC_ABORT)
MSG_PUTS(" abort");
if (fp->uf_flags & FC_RANGE)
MSG_PUTS(" range");
if (fp->uf_flags & FC_DICT)
MSG_PUTS(" dict");
msg_clr_eos();
if (p_verbose > 0)
last_set_msg(fp->uf_script_ID);
}
/*
* Find a function by name, return pointer to it in ufuncs.
* Return NULL for unknown function.
*/
static ufunc_T *
find_func(name)
char_u *name;
{
hashitem_T *hi;
hi = hash_find(&func_hashtab, name);
if (!HASHITEM_EMPTY(hi))
return HI2UF(hi);
return NULL;
}
#if defined(EXITFREE) || defined(PROTO)
void
free_all_functions()
{
hashitem_T *hi;
/* Need to start all over every time, because func_free() may change the
* hash table. */
while (func_hashtab.ht_used > 0)
for (hi = func_hashtab.ht_array; ; ++hi)
if (!HASHITEM_EMPTY(hi))
{
func_free(HI2UF(hi));
break;
}
}
#endif
int
translated_function_exists(name)
char_u *name;
{
if (builtin_function(name, -1))
return find_internal_func(name) >= 0;
return find_func(name) != NULL;
}
/*
* Return TRUE if a function "name" exists.
*/
static int
function_exists(name)
char_u *name;
{
char_u *nm = name;
char_u *p;
int n = FALSE;
p = trans_function_name(&nm, FALSE, TFN_INT|TFN_QUIET|TFN_NO_AUTOLOAD,
NULL);
nm = skipwhite(nm);
/* Only accept "funcname", "funcname ", "funcname (..." and
* "funcname(...", not "funcname!...". */
if (p != NULL && (*nm == NUL || *nm == '('))
n = translated_function_exists(p);
vim_free(p);
return n;
}
char_u *
get_expanded_name(name, check)
char_u *name;
int check;
{
char_u *nm = name;
char_u *p;
p = trans_function_name(&nm, FALSE, TFN_INT|TFN_QUIET, NULL);
if (p != NULL && *nm == NUL)
if (!check || translated_function_exists(p))
return p;
vim_free(p);
return NULL;
}
/*
* Return TRUE if "name" looks like a builtin function name: starts with a
* lower case letter and doesn't contain AUTOLOAD_CHAR.
* "len" is the length of "name", or -1 for NUL terminated.
*/
static int
builtin_function(name, len)
char_u *name;
int len;
{
char_u *p;
if (!ASCII_ISLOWER(name[0]))
return FALSE;
p = vim_strchr(name, AUTOLOAD_CHAR);
return p == NULL || (len > 0 && p > name + len);
}
#if defined(FEAT_PROFILE) || defined(PROTO)
/*
* Start profiling function "fp".
*/
static void
func_do_profile(fp)
ufunc_T *fp;
{
int len = fp->uf_lines.ga_len;
if (len == 0)
len = 1; /* avoid getting error for allocating zero bytes */
fp->uf_tm_count = 0;
profile_zero(&fp->uf_tm_self);
profile_zero(&fp->uf_tm_total);
if (fp->uf_tml_count == NULL)
fp->uf_tml_count = (int *)alloc_clear((unsigned) (sizeof(int) * len));
if (fp->uf_tml_total == NULL)
fp->uf_tml_total = (proftime_T *)alloc_clear((unsigned)
(sizeof(proftime_T) * len));
if (fp->uf_tml_self == NULL)
fp->uf_tml_self = (proftime_T *)alloc_clear((unsigned)
(sizeof(proftime_T) * len));
fp->uf_tml_idx = -1;
if (fp->uf_tml_count == NULL || fp->uf_tml_total == NULL
|| fp->uf_tml_self == NULL)
return; /* out of memory */
fp->uf_profiling = TRUE;
}
/*
* Dump the profiling results for all functions in file "fd".
*/
void
func_dump_profile(fd)
FILE *fd;
{
hashitem_T *hi;
int todo;
ufunc_T *fp;
int i;
ufunc_T **sorttab;
int st_len = 0;
todo = (int)func_hashtab.ht_used;
if (todo == 0)
return; /* nothing to dump */
sorttab = (ufunc_T **)alloc((unsigned)(sizeof(ufunc_T *) * todo));
for (hi = func_hashtab.ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
fp = HI2UF(hi);
if (fp->uf_profiling)
{
if (sorttab != NULL)
sorttab[st_len++] = fp;
if (fp->uf_name[0] == K_SPECIAL)
fprintf(fd, "FUNCTION <SNR>%s()\n", fp->uf_name + 3);
else
fprintf(fd, "FUNCTION %s()\n", fp->uf_name);
if (fp->uf_tm_count == 1)
fprintf(fd, "Called 1 time\n");
else
fprintf(fd, "Called %d times\n", fp->uf_tm_count);
fprintf(fd, "Total time: %s\n", profile_msg(&fp->uf_tm_total));
fprintf(fd, " Self time: %s\n", profile_msg(&fp->uf_tm_self));
fprintf(fd, "\n");
fprintf(fd, "count total (s) self (s)\n");
for (i = 0; i < fp->uf_lines.ga_len; ++i)
{
if (FUNCLINE(fp, i) == NULL)
continue;
prof_func_line(fd, fp->uf_tml_count[i],
&fp->uf_tml_total[i], &fp->uf_tml_self[i], TRUE);
fprintf(fd, "%s\n", FUNCLINE(fp, i));
}
fprintf(fd, "\n");
}
}
}
if (sorttab != NULL && st_len > 0)
{
qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *),
prof_total_cmp);
prof_sort_list(fd, sorttab, st_len, "TOTAL", FALSE);
qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *),
prof_self_cmp);
prof_sort_list(fd, sorttab, st_len, "SELF", TRUE);
}
vim_free(sorttab);
}
static void
prof_sort_list(fd, sorttab, st_len, title, prefer_self)
FILE *fd;
ufunc_T **sorttab;
int st_len;
char *title;
int prefer_self; /* when equal print only self time */
{
int i;
ufunc_T *fp;
fprintf(fd, "FUNCTIONS SORTED ON %s TIME\n", title);
fprintf(fd, "count total (s) self (s) function\n");
for (i = 0; i < 20 && i < st_len; ++i)
{
fp = sorttab[i];
prof_func_line(fd, fp->uf_tm_count, &fp->uf_tm_total, &fp->uf_tm_self,
prefer_self);
if (fp->uf_name[0] == K_SPECIAL)
fprintf(fd, " <SNR>%s()\n", fp->uf_name + 3);
else
fprintf(fd, " %s()\n", fp->uf_name);
}
fprintf(fd, "\n");
}
/*
* Print the count and times for one function or function line.
*/
static void
prof_func_line(fd, count, total, self, prefer_self)
FILE *fd;
int count;
proftime_T *total;
proftime_T *self;
int prefer_self; /* when equal print only self time */
{
if (count > 0)
{
fprintf(fd, "%5d ", count);
if (prefer_self && profile_equal(total, self))
fprintf(fd, " ");
else
fprintf(fd, "%s ", profile_msg(total));
if (!prefer_self && profile_equal(total, self))
fprintf(fd, " ");
else
fprintf(fd, "%s ", profile_msg(self));
}
else
fprintf(fd, " ");
}
/*
* Compare function for total time sorting.
*/
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
prof_total_cmp(s1, s2)
const void *s1;
const void *s2;
{
ufunc_T *p1, *p2;
p1 = *(ufunc_T **)s1;
p2 = *(ufunc_T **)s2;
return profile_cmp(&p1->uf_tm_total, &p2->uf_tm_total);
}
/*
* Compare function for self time sorting.
*/
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
prof_self_cmp(s1, s2)
const void *s1;
const void *s2;
{
ufunc_T *p1, *p2;
p1 = *(ufunc_T **)s1;
p2 = *(ufunc_T **)s2;
return profile_cmp(&p1->uf_tm_self, &p2->uf_tm_self);
}
#endif
/*
* If "name" has a package name try autoloading the script for it.
* Return TRUE if a package was loaded.
*/
static int
script_autoload(name, reload)
char_u *name;
int reload; /* load script again when already loaded */
{
char_u *p;
char_u *scriptname, *tofree;
int ret = FALSE;
int i;
/* If there is no '#' after name[0] there is no package name. */
p = vim_strchr(name, AUTOLOAD_CHAR);
if (p == NULL || p == name)
return FALSE;
tofree = scriptname = autoload_name(name);
/* Find the name in the list of previously loaded package names. Skip
* "autoload/", it's always the same. */
for (i = 0; i < ga_loaded.ga_len; ++i)
if (STRCMP(((char_u **)ga_loaded.ga_data)[i] + 9, scriptname + 9) == 0)
break;
if (!reload && i < ga_loaded.ga_len)
ret = FALSE; /* was loaded already */
else
{
/* Remember the name if it wasn't loaded already. */
if (i == ga_loaded.ga_len && ga_grow(&ga_loaded, 1) == OK)
{
((char_u **)ga_loaded.ga_data)[ga_loaded.ga_len++] = scriptname;
tofree = NULL;
}
/* Try loading the package from $VIMRUNTIME/autoload/<name>.vim */
if (source_runtime(scriptname, FALSE) == OK)
ret = TRUE;
}
vim_free(tofree);
return ret;
}
/*
* Return the autoload script name for a function or variable name.
* Returns NULL when out of memory.
*/
static char_u *
autoload_name(name)
char_u *name;
{
char_u *p;
char_u *scriptname;
/* Get the script file name: replace '#' with '/', append ".vim". */
scriptname = alloc((unsigned)(STRLEN(name) + 14));
if (scriptname == NULL)
return FALSE;
STRCPY(scriptname, "autoload/");
STRCAT(scriptname, name);
*vim_strrchr(scriptname, AUTOLOAD_CHAR) = NUL;
STRCAT(scriptname, ".vim");
while ((p = vim_strchr(scriptname, AUTOLOAD_CHAR)) != NULL)
*p = '/';
return scriptname;
}
#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
/*
* Function given to ExpandGeneric() to obtain the list of user defined
* function names.
*/
char_u *
get_user_func_name(xp, idx)
expand_T *xp;
int idx;
{
static long_u done;
static hashitem_T *hi;
ufunc_T *fp;
if (idx == 0)
{
done = 0;
hi = func_hashtab.ht_array;
}
if (done < func_hashtab.ht_used)
{
if (done++ > 0)
++hi;
while (HASHITEM_EMPTY(hi))
++hi;
fp = HI2UF(hi);
if (fp->uf_flags & FC_DICT)
return (char_u *)""; /* don't show dict functions */
if (STRLEN(fp->uf_name) + 4 >= IOSIZE)
return fp->uf_name; /* prevents overflow */
cat_func_name(IObuff, fp);
if (xp->xp_context != EXPAND_USER_FUNC)
{
STRCAT(IObuff, "(");
if (!fp->uf_varargs && fp->uf_args.ga_len == 0)
STRCAT(IObuff, ")");
}
return IObuff;
}
return NULL;
}
#endif /* FEAT_CMDL_COMPL */
/*
* Copy the function name of "fp" to buffer "buf".
* "buf" must be able to hold the function name plus three bytes.
* Takes care of script-local function names.
*/
static void
cat_func_name(buf, fp)
char_u *buf;
ufunc_T *fp;
{
if (fp->uf_name[0] == K_SPECIAL)
{
STRCPY(buf, "<SNR>");
STRCAT(buf, fp->uf_name + 3);
}
else
STRCPY(buf, fp->uf_name);
}
/*
* ":delfunction {name}"
*/
void
ex_delfunction(eap)
exarg_T *eap;
{
ufunc_T *fp = NULL;
char_u *p;
char_u *name;
funcdict_T fudi;
p = eap->arg;
name = trans_function_name(&p, eap->skip, 0, &fudi);
vim_free(fudi.fd_newkey);
if (name == NULL)
{
if (fudi.fd_dict != NULL && !eap->skip)
EMSG(_(e_funcref));
return;
}
if (!ends_excmd(*skipwhite(p)))
{
vim_free(name);
EMSG(_(e_trailing));
return;
}
eap->nextcmd = check_nextcmd(p);
if (eap->nextcmd != NULL)
*p = NUL;
if (!eap->skip)
fp = find_func(name);
vim_free(name);
if (!eap->skip)
{
if (fp == NULL)
{
EMSG2(_(e_nofunc), eap->arg);
return;
}
if (fp->uf_calls > 0)
{
EMSG2(_("E131: Cannot delete function %s: It is in use"), eap->arg);
return;
}
if (fudi.fd_dict != NULL)
{
/* Delete the dict item that refers to the function, it will
* invoke func_unref() and possibly delete the function. */
dictitem_remove(fudi.fd_dict, fudi.fd_di);
}
else
func_free(fp);
}
}
/*
* Free a function and remove it from the list of functions.
*/
static void
func_free(fp)
ufunc_T *fp;
{
hashitem_T *hi;
/* clear this function */
ga_clear_strings(&(fp->uf_args));
ga_clear_strings(&(fp->uf_lines));
#ifdef FEAT_PROFILE
vim_free(fp->uf_tml_count);
vim_free(fp->uf_tml_total);
vim_free(fp->uf_tml_self);
#endif
/* remove the function from the function hashtable */
hi = hash_find(&func_hashtab, UF2HIKEY(fp));
if (HASHITEM_EMPTY(hi))
EMSG2(_(e_intern2), "func_free()");
else
hash_remove(&func_hashtab, hi);
vim_free(fp);
}
/*
* Unreference a Function: decrement the reference count and free it when it
* becomes zero. Only for numbered functions.
*/
void
func_unref(name)
char_u *name;
{
ufunc_T *fp;
if (name != NULL && isdigit(*name))
{
fp = find_func(name);
if (fp == NULL)
EMSG2(_(e_intern2), "func_unref()");
else if (--fp->uf_refcount <= 0)
{
/* Only delete it when it's not being used. Otherwise it's done
* when "uf_calls" becomes zero. */
if (fp->uf_calls == 0)
func_free(fp);
}
}
}
/*
* Count a reference to a Function.
*/
void
func_ref(name)
char_u *name;
{
ufunc_T *fp;
if (name != NULL && isdigit(*name))
{
fp = find_func(name);
if (fp == NULL)
EMSG2(_(e_intern2), "func_ref()");
else
++fp->uf_refcount;
}
}
/*
* Call a user function.
*/
static void
call_user_func(fp, argcount, argvars, rettv, firstline, lastline, selfdict)
ufunc_T *fp; /* pointer to function */
int argcount; /* nr of args */
typval_T *argvars; /* arguments */
typval_T *rettv; /* return value */
linenr_T firstline; /* first line of range */
linenr_T lastline; /* last line of range */
dict_T *selfdict; /* Dictionary for "self" */
{
char_u *save_sourcing_name;
linenr_T save_sourcing_lnum;
scid_T save_current_SID;
funccall_T *fc;
int save_did_emsg;
static int depth = 0;
dictitem_T *v;
int fixvar_idx = 0; /* index in fixvar[] */
int i;
int ai;
char_u numbuf[NUMBUFLEN];
char_u *name;
size_t len;
#ifdef FEAT_PROFILE
proftime_T wait_start;
proftime_T call_start;
#endif
/* If depth of calling is getting too high, don't execute the function */
if (depth >= p_mfd)
{
EMSG(_("E132: Function call depth is higher than 'maxfuncdepth'"));
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = -1;
return;
}
++depth;
line_breakcheck(); /* check for CTRL-C hit */
fc = (funccall_T *)alloc(sizeof(funccall_T));
fc->caller = current_funccal;
current_funccal = fc;
fc->func = fp;
fc->rettv = rettv;
rettv->vval.v_number = 0;
fc->linenr = 0;
fc->returned = FALSE;
fc->level = ex_nesting_level;
/* Check if this function has a breakpoint. */
fc->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, (linenr_T)0);
fc->dbg_tick = debug_tick;
/*
* Note about using fc->fixvar[]: This is an array of FIXVAR_CNT variables
* with names up to VAR_SHORT_LEN long. This avoids having to alloc/free
* each argument variable and saves a lot of time.
*/
/*
* Init l: variables.
*/
init_var_dict(&fc->l_vars, &fc->l_vars_var, VAR_DEF_SCOPE);
if (selfdict != NULL)
{
/* Set l:self to "selfdict". Use "name" to avoid a warning from
* some compiler that checks the destination size. */
v = &fc->fixvar[fixvar_idx++].var;
name = v->di_key;
STRCPY(name, "self");
v->di_flags = DI_FLAGS_RO + DI_FLAGS_FIX;
hash_add(&fc->l_vars.dv_hashtab, DI2HIKEY(v));
v->di_tv.v_type = VAR_DICT;
v->di_tv.v_lock = 0;
v->di_tv.vval.v_dict = selfdict;
++selfdict->dv_refcount;
}
/*
* Init a: variables.
* Set a:0 to "argcount".
* Set a:000 to a list with room for the "..." arguments.
*/
init_var_dict(&fc->l_avars, &fc->l_avars_var, VAR_SCOPE);
add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "0",
(varnumber_T)(argcount - fp->uf_args.ga_len));
/* Use "name" to avoid a warning from some compiler that checks the
* destination size. */
v = &fc->fixvar[fixvar_idx++].var;
name = v->di_key;
STRCPY(name, "000");
v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
hash_add(&fc->l_avars.dv_hashtab, DI2HIKEY(v));
v->di_tv.v_type = VAR_LIST;
v->di_tv.v_lock = VAR_FIXED;
v->di_tv.vval.v_list = &fc->l_varlist;
vim_memset(&fc->l_varlist, 0, sizeof(list_T));
fc->l_varlist.lv_refcount = DO_NOT_FREE_CNT;
fc->l_varlist.lv_lock = VAR_FIXED;
/*
* Set a:firstline to "firstline" and a:lastline to "lastline".
* Set a:name to named arguments.
* Set a:N to the "..." arguments.
*/
add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "firstline",
(varnumber_T)firstline);
add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "lastline",
(varnumber_T)lastline);
for (i = 0; i < argcount; ++i)
{
ai = i - fp->uf_args.ga_len;
if (ai < 0)
/* named argument a:name */
name = FUNCARG(fp, i);
else
{
/* "..." argument a:1, a:2, etc. */
sprintf((char *)numbuf, "%d", ai + 1);
name = numbuf;
}
if (fixvar_idx < FIXVAR_CNT && STRLEN(name) <= VAR_SHORT_LEN)
{
v = &fc->fixvar[fixvar_idx++].var;
v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
}
else
{
v = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T)
+ STRLEN(name)));
if (v == NULL)
break;
v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX | DI_FLAGS_ALLOC;
}
STRCPY(v->di_key, name);
hash_add(&fc->l_avars.dv_hashtab, DI2HIKEY(v));
/* Note: the values are copied directly to avoid alloc/free.
* "argvars" must have VAR_FIXED for v_lock. */
v->di_tv = argvars[i];
v->di_tv.v_lock = VAR_FIXED;
if (ai >= 0 && ai < MAX_FUNC_ARGS)
{
list_append(&fc->l_varlist, &fc->l_listitems[ai]);
fc->l_listitems[ai].li_tv = argvars[i];
fc->l_listitems[ai].li_tv.v_lock = VAR_FIXED;
}
}
/* Don't redraw while executing the function. */
++RedrawingDisabled;
save_sourcing_name = sourcing_name;
save_sourcing_lnum = sourcing_lnum;
sourcing_lnum = 1;
/* need space for function name + ("function " + 3) or "[number]" */
len = (save_sourcing_name == NULL ? 0 : STRLEN(save_sourcing_name))
+ STRLEN(fp->uf_name) + 20;
sourcing_name = alloc((unsigned)len);
if (sourcing_name != NULL)
{
if (save_sourcing_name != NULL
&& STRNCMP(save_sourcing_name, "function ", 9) == 0)
sprintf((char *)sourcing_name, "%s[%d]..",
save_sourcing_name, (int)save_sourcing_lnum);
else
STRCPY(sourcing_name, "function ");
cat_func_name(sourcing_name + STRLEN(sourcing_name), fp);
if (p_verbose >= 12)
{
++no_wait_return;
verbose_enter_scroll();
smsg((char_u *)_("calling %s"), sourcing_name);
if (p_verbose >= 14)
{
char_u buf[MSG_BUF_LEN];
char_u numbuf2[NUMBUFLEN];
char_u *tofree;
char_u *s;
msg_puts((char_u *)"(");
for (i = 0; i < argcount; ++i)
{
if (i > 0)
msg_puts((char_u *)", ");
if (argvars[i].v_type == VAR_NUMBER)
msg_outnum((long)argvars[i].vval.v_number);
else
{
/* Do not want errors such as E724 here. */
++emsg_off;
s = tv2string(&argvars[i], &tofree, numbuf2, 0);
--emsg_off;
if (s != NULL)
{
if (vim_strsize(s) > MSG_BUF_CLEN)
{
trunc_string(s, buf, MSG_BUF_CLEN, MSG_BUF_LEN);
s = buf;
}
msg_puts(s);
vim_free(tofree);
}
}
}
msg_puts((char_u *)")");
}
msg_puts((char_u *)"\n"); /* don't overwrite this either */
verbose_leave_scroll();
--no_wait_return;
}
}
#ifdef FEAT_PROFILE
if (do_profiling == PROF_YES)
{
if (!fp->uf_profiling && has_profiling(FALSE, fp->uf_name, NULL))
func_do_profile(fp);
if (fp->uf_profiling
|| (fc->caller != NULL && fc->caller->func->uf_profiling))
{
++fp->uf_tm_count;
profile_start(&call_start);
profile_zero(&fp->uf_tm_children);
}
script_prof_save(&wait_start);
}
#endif
save_current_SID = current_SID;
current_SID = fp->uf_script_ID;
save_did_emsg = did_emsg;
did_emsg = FALSE;
/* call do_cmdline() to execute the lines */
do_cmdline(NULL, get_func_line, (void *)fc,
DOCMD_NOWAIT|DOCMD_VERBOSE|DOCMD_REPEAT);
--RedrawingDisabled;
/* when the function was aborted because of an error, return -1 */
if ((did_emsg && (fp->uf_flags & FC_ABORT)) || rettv->v_type == VAR_UNKNOWN)
{
clear_tv(rettv);
rettv->v_type = VAR_NUMBER;
rettv->vval.v_number = -1;
}
#ifdef FEAT_PROFILE
if (do_profiling == PROF_YES && (fp->uf_profiling
|| (fc->caller != NULL && fc->caller->func->uf_profiling)))
{
profile_end(&call_start);
profile_sub_wait(&wait_start, &call_start);
profile_add(&fp->uf_tm_total, &call_start);
profile_self(&fp->uf_tm_self, &call_start, &fp->uf_tm_children);
if (fc->caller != NULL && fc->caller->func->uf_profiling)
{
profile_add(&fc->caller->func->uf_tm_children, &call_start);
profile_add(&fc->caller->func->uf_tml_children, &call_start);
}
}
#endif
/* when being verbose, mention the return value */
if (p_verbose >= 12)
{
++no_wait_return;
verbose_enter_scroll();
if (aborting())
smsg((char_u *)_("%s aborted"), sourcing_name);
else if (fc->rettv->v_type == VAR_NUMBER)
smsg((char_u *)_("%s returning #%ld"), sourcing_name,
(long)fc->rettv->vval.v_number);
else
{
char_u buf[MSG_BUF_LEN];
char_u numbuf2[NUMBUFLEN];
char_u *tofree;
char_u *s;
/* The value may be very long. Skip the middle part, so that we
* have some idea how it starts and ends. smsg() would always
* truncate it at the end. Don't want errors such as E724 here. */
++emsg_off;
s = tv2string(fc->rettv, &tofree, numbuf2, 0);
--emsg_off;
if (s != NULL)
{
if (vim_strsize(s) > MSG_BUF_CLEN)
{
trunc_string(s, buf, MSG_BUF_CLEN, MSG_BUF_LEN);
s = buf;
}
smsg((char_u *)_("%s returning %s"), sourcing_name, s);
vim_free(tofree);
}
}
msg_puts((char_u *)"\n"); /* don't overwrite this either */
verbose_leave_scroll();
--no_wait_return;
}
vim_free(sourcing_name);
sourcing_name = save_sourcing_name;
sourcing_lnum = save_sourcing_lnum;
current_SID = save_current_SID;
#ifdef FEAT_PROFILE
if (do_profiling == PROF_YES)
script_prof_restore(&wait_start);
#endif
if (p_verbose >= 12 && sourcing_name != NULL)
{
++no_wait_return;
verbose_enter_scroll();
smsg((char_u *)_("continuing in %s"), sourcing_name);
msg_puts((char_u *)"\n"); /* don't overwrite this either */
verbose_leave_scroll();
--no_wait_return;
}
did_emsg |= save_did_emsg;
current_funccal = fc->caller;
--depth;
/* If the a:000 list and the l: and a: dicts are not referenced we can
* free the funccall_T and what's in it. */
if (fc->l_varlist.lv_refcount == DO_NOT_FREE_CNT
&& fc->l_vars.dv_refcount == DO_NOT_FREE_CNT
&& fc->l_avars.dv_refcount == DO_NOT_FREE_CNT)
{
free_funccal(fc, FALSE);
}
else
{
hashitem_T *hi;
listitem_T *li;
int todo;
/* "fc" is still in use. This can happen when returning "a:000" or
* assigning "l:" to a global variable.
* Link "fc" in the list for garbage collection later. */
fc->caller = previous_funccal;
previous_funccal = fc;
/* Make a copy of the a: variables, since we didn't do that above. */
todo = (int)fc->l_avars.dv_hashtab.ht_used;
for (hi = fc->l_avars.dv_hashtab.ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
v = HI2DI(hi);
copy_tv(&v->di_tv, &v->di_tv);
}
}
/* Make a copy of the a:000 items, since we didn't do that above. */
for (li = fc->l_varlist.lv_first; li != NULL; li = li->li_next)
copy_tv(&li->li_tv, &li->li_tv);
}
}
/*
* Return TRUE if items in "fc" do not have "copyID". That means they are not
* referenced from anywhere that is in use.
*/
static int
can_free_funccal(fc, copyID)
funccall_T *fc;
int copyID;
{
return (fc->l_varlist.lv_copyID != copyID
&& fc->l_vars.dv_copyID != copyID
&& fc->l_avars.dv_copyID != copyID);
}
/*
* Free "fc" and what it contains.
*/
static void
free_funccal(fc, free_val)
funccall_T *fc;
int free_val; /* a: vars were allocated */
{
listitem_T *li;
/* The a: variables typevals may not have been allocated, only free the
* allocated variables. */
vars_clear_ext(&fc->l_avars.dv_hashtab, free_val);
/* free all l: variables */
vars_clear(&fc->l_vars.dv_hashtab);
/* Free the a:000 variables if they were allocated. */
if (free_val)
for (li = fc->l_varlist.lv_first; li != NULL; li = li->li_next)
clear_tv(&li->li_tv);
vim_free(fc);
}
/*
* Add a number variable "name" to dict "dp" with value "nr".
*/
static void
add_nr_var(dp, v, name, nr)
dict_T *dp;
dictitem_T *v;
char *name;
varnumber_T nr;
{
STRCPY(v->di_key, name);
v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
hash_add(&dp->dv_hashtab, DI2HIKEY(v));
v->di_tv.v_type = VAR_NUMBER;
v->di_tv.v_lock = VAR_FIXED;
v->di_tv.vval.v_number = nr;
}
/*
* ":return [expr]"
*/
void
ex_return(eap)
exarg_T *eap;
{
char_u *arg = eap->arg;
typval_T rettv;
int returning = FALSE;
if (current_funccal == NULL)
{
EMSG(_("E133: :return not inside a function"));
return;
}
if (eap->skip)
++emsg_skip;
eap->nextcmd = NULL;
if ((*arg != NUL && *arg != '|' && *arg != '\n')
&& eval0(arg, &rettv, &eap->nextcmd, !eap->skip) != FAIL)
{
if (!eap->skip)
returning = do_return(eap, FALSE, TRUE, &rettv);
else
clear_tv(&rettv);
}
/* It's safer to return also on error. */
else if (!eap->skip)
{
/*
* Return unless the expression evaluation has been cancelled due to an
* aborting error, an interrupt, or an exception.
*/
if (!aborting())
returning = do_return(eap, FALSE, TRUE, NULL);
}
/* When skipping or the return gets pending, advance to the next command
* in this line (!returning). Otherwise, ignore the rest of the line.
* Following lines will be ignored by get_func_line(). */
if (returning)
eap->nextcmd = NULL;
else if (eap->nextcmd == NULL) /* no argument */
eap->nextcmd = check_nextcmd(arg);
if (eap->skip)
--emsg_skip;
}
/*
* Return from a function. Possibly makes the return pending. Also called
* for a pending return at the ":endtry" or after returning from an extra
* do_cmdline(). "reanimate" is used in the latter case. "is_cmd" is set
* when called due to a ":return" command. "rettv" may point to a typval_T
* with the return rettv. Returns TRUE when the return can be carried out,
* FALSE when the return gets pending.
*/
int
do_return(eap, reanimate, is_cmd, rettv)
exarg_T *eap;
int reanimate;
int is_cmd;
void *rettv;
{
int idx;
struct condstack *cstack = eap->cstack;
if (reanimate)
/* Undo the return. */
current_funccal->returned = FALSE;
/*
* Cleanup (and inactivate) conditionals, but stop when a try conditional
* not in its finally clause (which then is to be executed next) is found.
* In this case, make the ":return" pending for execution at the ":endtry".
* Otherwise, return normally.
*/
idx = cleanup_conditionals(eap->cstack, 0, TRUE);
if (idx >= 0)
{
cstack->cs_pending[idx] = CSTP_RETURN;
if (!is_cmd && !reanimate)
/* A pending return again gets pending. "rettv" points to an
* allocated variable with the rettv of the original ":return"'s
* argument if present or is NULL else. */
cstack->cs_rettv[idx] = rettv;
else
{
/* When undoing a return in order to make it pending, get the stored
* return rettv. */
if (reanimate)
rettv = current_funccal->rettv;
if (rettv != NULL)
{
/* Store the value of the pending return. */
if ((cstack->cs_rettv[idx] = alloc_tv()) != NULL)
*(typval_T *)cstack->cs_rettv[idx] = *(typval_T *)rettv;
else
EMSG(_(e_outofmem));
}
else
cstack->cs_rettv[idx] = NULL;
if (reanimate)
{
/* The pending return value could be overwritten by a ":return"
* without argument in a finally clause; reset the default
* return value. */
current_funccal->rettv->v_type = VAR_NUMBER;
current_funccal->rettv->vval.v_number = 0;
}
}
report_make_pending(CSTP_RETURN, rettv);
}
else
{
current_funccal->returned = TRUE;
/* If the return is carried out now, store the return value. For
* a return immediately after reanimation, the value is already
* there. */
if (!reanimate && rettv != NULL)
{
clear_tv(current_funccal->rettv);
*current_funccal->rettv = *(typval_T *)rettv;
if (!is_cmd)
vim_free(rettv);
}
}
return idx < 0;
}
/*
* Free the variable with a pending return value.
*/
void
discard_pending_return(rettv)
void *rettv;
{
free_tv((typval_T *)rettv);
}
/*
* Generate a return command for producing the value of "rettv". The result
* is an allocated string. Used by report_pending() for verbose messages.
*/
char_u *
get_return_cmd(rettv)
void *rettv;
{
char_u *s = NULL;
char_u *tofree = NULL;
char_u numbuf[NUMBUFLEN];
if (rettv != NULL)
s = echo_string((typval_T *)rettv, &tofree, numbuf, 0);
if (s == NULL)
s = (char_u *)"";
STRCPY(IObuff, ":return ");
STRNCPY(IObuff + 8, s, IOSIZE - 8);
if (STRLEN(s) + 8 >= IOSIZE)
STRCPY(IObuff + IOSIZE - 4, "...");
vim_free(tofree);
return vim_strsave(IObuff);
}
/*
* Get next function line.
* Called by do_cmdline() to get the next line.
* Returns allocated string, or NULL for end of function.
*/
char_u *
get_func_line(c, cookie, indent)
int c UNUSED;
void *cookie;
int indent UNUSED;
{
funccall_T *fcp = (funccall_T *)cookie;
ufunc_T *fp = fcp->func;
char_u *retval;
garray_T *gap; /* growarray with function lines */
/* If breakpoints have been added/deleted need to check for it. */
if (fcp->dbg_tick != debug_tick)
{
fcp->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name,
sourcing_lnum);
fcp->dbg_tick = debug_tick;
}
#ifdef FEAT_PROFILE
if (do_profiling == PROF_YES)
func_line_end(cookie);
#endif
gap = &fp->uf_lines;
if (((fp->uf_flags & FC_ABORT) && did_emsg && !aborted_in_try())
|| fcp->returned)
retval = NULL;
else
{
/* Skip NULL lines (continuation lines). */
while (fcp->linenr < gap->ga_len
&& ((char_u **)(gap->ga_data))[fcp->linenr] == NULL)
++fcp->linenr;
if (fcp->linenr >= gap->ga_len)
retval = NULL;
else
{
retval = vim_strsave(((char_u **)(gap->ga_data))[fcp->linenr++]);
sourcing_lnum = fcp->linenr;
#ifdef FEAT_PROFILE
if (do_profiling == PROF_YES)
func_line_start(cookie);
#endif
}
}
/* Did we encounter a breakpoint? */
if (fcp->breakpoint != 0 && fcp->breakpoint <= sourcing_lnum)
{
dbg_breakpoint(fp->uf_name, sourcing_lnum);
/* Find next breakpoint. */
fcp->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name,
sourcing_lnum);
fcp->dbg_tick = debug_tick;
}
return retval;
}
#if defined(FEAT_PROFILE) || defined(PROTO)
/*
* Called when starting to read a function line.
* "sourcing_lnum" must be correct!
* When skipping lines it may not actually be executed, but we won't find out
* until later and we need to store the time now.
*/
void
func_line_start(cookie)
void *cookie;
{
funccall_T *fcp = (funccall_T *)cookie;
ufunc_T *fp = fcp->func;
if (fp->uf_profiling && sourcing_lnum >= 1
&& sourcing_lnum <= fp->uf_lines.ga_len)
{
fp->uf_tml_idx = sourcing_lnum - 1;
/* Skip continuation lines. */
while (fp->uf_tml_idx > 0 && FUNCLINE(fp, fp->uf_tml_idx) == NULL)
--fp->uf_tml_idx;
fp->uf_tml_execed = FALSE;
profile_start(&fp->uf_tml_start);
profile_zero(&fp->uf_tml_children);
profile_get_wait(&fp->uf_tml_wait);
}
}
/*
* Called when actually executing a function line.
*/
void
func_line_exec(cookie)
void *cookie;
{
funccall_T *fcp = (funccall_T *)cookie;
ufunc_T *fp = fcp->func;
if (fp->uf_profiling && fp->uf_tml_idx >= 0)
fp->uf_tml_execed = TRUE;
}
/*
* Called when done with a function line.
*/
void
func_line_end(cookie)
void *cookie;
{
funccall_T *fcp = (funccall_T *)cookie;
ufunc_T *fp = fcp->func;
if (fp->uf_profiling && fp->uf_tml_idx >= 0)
{
if (fp->uf_tml_execed)
{
++fp->uf_tml_count[fp->uf_tml_idx];
profile_end(&fp->uf_tml_start);
profile_sub_wait(&fp->uf_tml_wait, &fp->uf_tml_start);
profile_add(&fp->uf_tml_total[fp->uf_tml_idx], &fp->uf_tml_start);
profile_self(&fp->uf_tml_self[fp->uf_tml_idx], &fp->uf_tml_start,
&fp->uf_tml_children);
}
fp->uf_tml_idx = -1;
}
}
#endif
/*
* Return TRUE if the currently active function should be ended, because a
* return was encountered or an error occurred. Used inside a ":while".
*/
int
func_has_ended(cookie)
void *cookie;
{
funccall_T *fcp = (funccall_T *)cookie;
/* Ignore the "abort" flag if the abortion behavior has been changed due to
* an error inside a try conditional. */
return (((fcp->func->uf_flags & FC_ABORT) && did_emsg && !aborted_in_try())
|| fcp->returned);
}
/*
* return TRUE if cookie indicates a function which "abort"s on errors.
*/
int
func_has_abort(cookie)
void *cookie;
{
return ((funccall_T *)cookie)->func->uf_flags & FC_ABORT;
}
#if defined(FEAT_VIMINFO) || defined(FEAT_SESSION)
typedef enum
{
VAR_FLAVOUR_DEFAULT, /* doesn't start with uppercase */
VAR_FLAVOUR_SESSION, /* starts with uppercase, some lower */
VAR_FLAVOUR_VIMINFO /* all uppercase */
} var_flavour_T;
static var_flavour_T var_flavour __ARGS((char_u *varname));
static var_flavour_T
var_flavour(varname)
char_u *varname;
{
char_u *p = varname;
if (ASCII_ISUPPER(*p))
{
while (*(++p))
if (ASCII_ISLOWER(*p))
return VAR_FLAVOUR_SESSION;
return VAR_FLAVOUR_VIMINFO;
}
else
return VAR_FLAVOUR_DEFAULT;
}
#endif
#if defined(FEAT_VIMINFO) || defined(PROTO)
/*
* Restore global vars that start with a capital from the viminfo file
*/
int
read_viminfo_varlist(virp, writing)
vir_T *virp;
int writing;
{
char_u *tab;
int type = VAR_NUMBER;
typval_T tv;
funccall_T *save_funccal;
if (!writing && (find_viminfo_parameter('!') != NULL))
{
tab = vim_strchr(virp->vir_line + 1, '\t');
if (tab != NULL)
{
*tab++ = '\0'; /* isolate the variable name */
switch (*tab)
{
case 'S': type = VAR_STRING; break;
#ifdef FEAT_FLOAT
case 'F': type = VAR_FLOAT; break;
#endif
case 'D': type = VAR_DICT; break;
case 'L': type = VAR_LIST; break;
}
tab = vim_strchr(tab, '\t');
if (tab != NULL)
{
tv.v_type = type;
if (type == VAR_STRING || type == VAR_DICT || type == VAR_LIST)
tv.vval.v_string = viminfo_readstring(virp,
(int)(tab - virp->vir_line + 1), TRUE);
#ifdef FEAT_FLOAT
else if (type == VAR_FLOAT)
(void)string2float(tab + 1, &tv.vval.v_float);
#endif
else
tv.vval.v_number = atol((char *)tab + 1);
if (type == VAR_DICT || type == VAR_LIST)
{
typval_T *etv = eval_expr(tv.vval.v_string, NULL);
if (etv == NULL)
/* Failed to parse back the dict or list, use it as a
* string. */
tv.v_type = VAR_STRING;
else
{
vim_free(tv.vval.v_string);
tv = *etv;
vim_free(etv);
}
}
/* when in a function use global variables */
save_funccal = current_funccal;
current_funccal = NULL;
set_var(virp->vir_line + 1, &tv, FALSE);
current_funccal = save_funccal;
if (tv.v_type == VAR_STRING)
vim_free(tv.vval.v_string);
else if (tv.v_type == VAR_DICT || tv.v_type == VAR_LIST)
clear_tv(&tv);
}
}
}
return viminfo_readline(virp);
}
/*
* Write global vars that start with a capital to the viminfo file
*/
void
write_viminfo_varlist(fp)
FILE *fp;
{
hashitem_T *hi;
dictitem_T *this_var;
int todo;
char *s;
char_u *p;
char_u *tofree;
char_u numbuf[NUMBUFLEN];
if (find_viminfo_parameter('!') == NULL)
return;
fputs(_("\n# global variables:\n"), fp);
todo = (int)globvarht.ht_used;
for (hi = globvarht.ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
this_var = HI2DI(hi);
if (var_flavour(this_var->di_key) == VAR_FLAVOUR_VIMINFO)
{
switch (this_var->di_tv.v_type)
{
case VAR_STRING: s = "STR"; break;
case VAR_NUMBER: s = "NUM"; break;
#ifdef FEAT_FLOAT
case VAR_FLOAT: s = "FLO"; break;
#endif
case VAR_DICT: s = "DIC"; break;
case VAR_LIST: s = "LIS"; break;
default: continue;
}
fprintf(fp, "!%s\t%s\t", this_var->di_key, s);
p = echo_string(&this_var->di_tv, &tofree, numbuf, 0);
if (p != NULL)
viminfo_writestring(fp, p);
vim_free(tofree);
}
}
}
}
#endif
#if defined(FEAT_SESSION) || defined(PROTO)
int
store_session_globals(fd)
FILE *fd;
{
hashitem_T *hi;
dictitem_T *this_var;
int todo;
char_u *p, *t;
todo = (int)globvarht.ht_used;
for (hi = globvarht.ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
this_var = HI2DI(hi);
if ((this_var->di_tv.v_type == VAR_NUMBER
|| this_var->di_tv.v_type == VAR_STRING)
&& var_flavour(this_var->di_key) == VAR_FLAVOUR_SESSION)
{
/* Escape special characters with a backslash. Turn a LF and
* CR into \n and \r. */
p = vim_strsave_escaped(get_tv_string(&this_var->di_tv),
(char_u *)"\\\"\n\r");
if (p == NULL) /* out of memory */
break;
for (t = p; *t != NUL; ++t)
if (*t == '\n')
*t = 'n';
else if (*t == '\r')
*t = 'r';
if ((fprintf(fd, "let %s = %c%s%c",
this_var->di_key,
(this_var->di_tv.v_type == VAR_STRING) ? '"'
: ' ',
p,
(this_var->di_tv.v_type == VAR_STRING) ? '"'
: ' ') < 0)
|| put_eol(fd) == FAIL)
{
vim_free(p);
return FAIL;
}
vim_free(p);
}
#ifdef FEAT_FLOAT
else if (this_var->di_tv.v_type == VAR_FLOAT
&& var_flavour(this_var->di_key) == VAR_FLAVOUR_SESSION)
{
float_T f = this_var->di_tv.vval.v_float;
int sign = ' ';
if (f < 0)
{
f = -f;
sign = '-';
}
if ((fprintf(fd, "let %s = %c%f",
this_var->di_key, sign, f) < 0)
|| put_eol(fd) == FAIL)
return FAIL;
}
#endif
}
}
return OK;
}
#endif
/*
* Display script name where an item was last set.
* Should only be invoked when 'verbose' is non-zero.
*/
void
last_set_msg(scriptID)
scid_T scriptID;
{
char_u *p;
if (scriptID != 0)
{
p = home_replace_save(NULL, get_scriptname(scriptID));
if (p != NULL)
{
verbose_enter();
MSG_PUTS(_("\n\tLast set from "));
MSG_PUTS(p);
vim_free(p);
verbose_leave();
}
}
}
/*
* List v:oldfiles in a nice way.
*/
void
ex_oldfiles(eap)
exarg_T *eap UNUSED;
{
list_T *l = vimvars[VV_OLDFILES].vv_list;
listitem_T *li;
int nr = 0;
if (l == NULL)
msg((char_u *)_("No old files"));
else
{
msg_start();
msg_scroll = TRUE;
for (li = l->lv_first; li != NULL && !got_int; li = li->li_next)
{
msg_outnum((long)++nr);
MSG_PUTS(": ");
msg_outtrans(get_tv_string(&li->li_tv));
msg_putchar('\n');
out_flush(); /* output one line at a time */
ui_breakcheck();
}
/* Assume "got_int" was set to truncate the listing. */
got_int = FALSE;
#ifdef FEAT_BROWSE_CMD
if (cmdmod.browse)
{
quit_more = FALSE;
nr = prompt_for_number(FALSE);
msg_starthere();
if (nr > 0)
{
char_u *p = list_find_str(get_vim_var_list(VV_OLDFILES),
(long)nr);
if (p != NULL)
{
p = expand_env_save(p);
eap->arg = p;
eap->cmdidx = CMD_edit;
cmdmod.browse = FALSE;
do_exedit(eap, NULL);
vim_free(p);
}
}
}
#endif
}
}
/* reset v:option_new, v:option_old and v:option_type */
void
reset_v_option_vars()
{
set_vim_var_string(VV_OPTION_NEW, NULL, -1);
set_vim_var_string(VV_OPTION_OLD, NULL, -1);
set_vim_var_string(VV_OPTION_TYPE, NULL, -1);
}
#endif /* FEAT_EVAL */
#if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) || defined(PROTO)
#ifdef WIN3264
/*
* Functions for ":8" filename modifier: get 8.3 version of a filename.
*/
static int get_short_pathname __ARGS((char_u **fnamep, char_u **bufp, int *fnamelen));
static int shortpath_for_invalid_fname __ARGS((char_u **fname, char_u **bufp, int *fnamelen));
static int shortpath_for_partial __ARGS((char_u **fnamep, char_u **bufp, int *fnamelen));
/*
* Get the short path (8.3) for the filename in "fnamep".
* Only works for a valid file name.
* When the path gets longer "fnamep" is changed and the allocated buffer
* is put in "bufp".
* *fnamelen is the length of "fnamep" and set to 0 for a nonexistent path.
* Returns OK on success, FAIL on failure.
*/
static int
get_short_pathname(fnamep, bufp, fnamelen)
char_u **fnamep;
char_u **bufp;
int *fnamelen;
{
int l, len;
char_u *newbuf;
len = *fnamelen;
l = GetShortPathName(*fnamep, *fnamep, len);
if (l > len - 1)
{
/* If that doesn't work (not enough space), then save the string
* and try again with a new buffer big enough. */
newbuf = vim_strnsave(*fnamep, l);
if (newbuf == NULL)
return FAIL;
vim_free(*bufp);
*fnamep = *bufp = newbuf;
/* Really should always succeed, as the buffer is big enough. */
l = GetShortPathName(*fnamep, *fnamep, l+1);
}
*fnamelen = l;
return OK;
}
/*
* Get the short path (8.3) for the filename in "fname". The converted
* path is returned in "bufp".
*
* Some of the directories specified in "fname" may not exist. This function
* will shorten the existing directories at the beginning of the path and then
* append the remaining non-existing path.
*
* fname - Pointer to the filename to shorten. On return, contains the
* pointer to the shortened pathname
* bufp - Pointer to an allocated buffer for the filename.
* fnamelen - Length of the filename pointed to by fname
*
* Returns OK on success (or nothing done) and FAIL on failure (out of memory).
*/
static int
shortpath_for_invalid_fname(fname, bufp, fnamelen)
char_u **fname;
char_u **bufp;
int *fnamelen;
{
char_u *short_fname, *save_fname, *pbuf_unused;
char_u *endp, *save_endp;
char_u ch;
int old_len, len;
int new_len, sfx_len;
int retval = OK;
/* Make a copy */
old_len = *fnamelen;
save_fname = vim_strnsave(*fname, old_len);
pbuf_unused = NULL;
short_fname = NULL;
endp = save_fname + old_len - 1; /* Find the end of the copy */
save_endp = endp;
/*
* Try shortening the supplied path till it succeeds by removing one
* directory at a time from the tail of the path.
*/
len = 0;
for (;;)
{
/* go back one path-separator */
while (endp > save_fname && !after_pathsep(save_fname, endp + 1))
--endp;
if (endp <= save_fname)
break; /* processed the complete path */
/*
* Replace the path separator with a NUL and try to shorten the
* resulting path.
*/
ch = *endp;
*endp = 0;
short_fname = save_fname;
len = (int)STRLEN(short_fname) + 1;
if (get_short_pathname(&short_fname, &pbuf_unused, &len) == FAIL)
{
retval = FAIL;
goto theend;
}
*endp = ch; /* preserve the string */
if (len > 0)
break; /* successfully shortened the path */
/* failed to shorten the path. Skip the path separator */
--endp;
}
if (len > 0)
{
/*
* Succeeded in shortening the path. Now concatenate the shortened
* path with the remaining path at the tail.
*/
/* Compute the length of the new path. */
sfx_len = (int)(save_endp - endp) + 1;
new_len = len + sfx_len;
*fnamelen = new_len;
vim_free(*bufp);
if (new_len > old_len)
{
/* There is not enough space in the currently allocated string,
* copy it to a buffer big enough. */
*fname = *bufp = vim_strnsave(short_fname, new_len);
if (*fname == NULL)
{
retval = FAIL;
goto theend;
}
}
else
{
/* Transfer short_fname to the main buffer (it's big enough),
* unless get_short_pathname() did its work in-place. */
*fname = *bufp = save_fname;
if (short_fname != save_fname)
vim_strncpy(save_fname, short_fname, len);
save_fname = NULL;
}
/* concat the not-shortened part of the path */
vim_strncpy(*fname + len, endp, sfx_len);
(*fname)[new_len] = NUL;
}
theend:
vim_free(pbuf_unused);
vim_free(save_fname);
return retval;
}
/*
* Get a pathname for a partial path.
* Returns OK for success, FAIL for failure.
*/
static int
shortpath_for_partial(fnamep, bufp, fnamelen)
char_u **fnamep;
char_u **bufp;
int *fnamelen;
{
int sepcount, len, tflen;
char_u *p;
char_u *pbuf, *tfname;
int hasTilde;
/* Count up the path separators from the RHS.. so we know which part
* of the path to return. */
sepcount = 0;
for (p = *fnamep; p < *fnamep + *fnamelen; mb_ptr_adv(p))
if (vim_ispathsep(*p))
++sepcount;
/* Need full path first (use expand_env() to remove a "~/") */
hasTilde = (**fnamep == '~');
if (hasTilde)
pbuf = tfname = expand_env_save(*fnamep);
else
pbuf = tfname = FullName_save(*fnamep, FALSE);
len = tflen = (int)STRLEN(tfname);
if (get_short_pathname(&tfname, &pbuf, &len) == FAIL)
return FAIL;
if (len == 0)
{
/* Don't have a valid filename, so shorten the rest of the
* path if we can. This CAN give us invalid 8.3 filenames, but
* there's not a lot of point in guessing what it might be.
*/
len = tflen;
if (shortpath_for_invalid_fname(&tfname, &pbuf, &len) == FAIL)
return FAIL;
}
/* Count the paths backward to find the beginning of the desired string. */
for (p = tfname + len - 1; p >= tfname; --p)
{
#ifdef FEAT_MBYTE
if (has_mbyte)
p -= mb_head_off(tfname, p);
#endif
if (vim_ispathsep(*p))
{
if (sepcount == 0 || (hasTilde && sepcount == 1))
break;
else
sepcount --;
}
}
if (hasTilde)
{
--p;
if (p >= tfname)
*p = '~';
else
return FAIL;
}
else
++p;
/* Copy in the string - p indexes into tfname - allocated at pbuf */
vim_free(*bufp);
*fnamelen = (int)STRLEN(p);
*bufp = pbuf;
*fnamep = p;
return OK;
}
#endif /* WIN3264 */
/*
* Adjust a filename, according to a string of modifiers.
* *fnamep must be NUL terminated when called. When returning, the length is
* determined by *fnamelen.
* Returns VALID_ flags or -1 for failure.
* When there is an error, *fnamep is set to NULL.
*/
int
modify_fname(src, usedlen, fnamep, bufp, fnamelen)
char_u *src; /* string with modifiers */
int *usedlen; /* characters after src that are used */
char_u **fnamep; /* file name so far */
char_u **bufp; /* buffer for allocated file name or NULL */
int *fnamelen; /* length of fnamep */
{
int valid = 0;
char_u *tail;
char_u *s, *p, *pbuf;
char_u dirname[MAXPATHL];
int c;
int has_fullname = 0;
#ifdef WIN3264
char_u *fname_start = *fnamep;
int has_shortname = 0;
#endif
repeat:
/* ":p" - full path/file_name */
if (src[*usedlen] == ':' && src[*usedlen + 1] == 'p')
{
has_fullname = 1;
valid |= VALID_PATH;
*usedlen += 2;
/* Expand "~/path" for all systems and "~user/path" for Unix and VMS */
if ((*fnamep)[0] == '~'
#if !defined(UNIX) && !(defined(VMS) && defined(USER_HOME))
&& ((*fnamep)[1] == '/'
# ifdef BACKSLASH_IN_FILENAME
|| (*fnamep)[1] == '\\'
# endif
|| (*fnamep)[1] == NUL)
#endif
)
{
*fnamep = expand_env_save(*fnamep);
vim_free(*bufp); /* free any allocated file name */
*bufp = *fnamep;
if (*fnamep == NULL)
return -1;
}
/* When "/." or "/.." is used: force expansion to get rid of it. */
for (p = *fnamep; *p != NUL; mb_ptr_adv(p))
{
if (vim_ispathsep(*p)
&& p[1] == '.'
&& (p[2] == NUL
|| vim_ispathsep(p[2])
|| (p[2] == '.'
&& (p[3] == NUL || vim_ispathsep(p[3])))))
break;
}
/* FullName_save() is slow, don't use it when not needed. */
if (*p != NUL || !vim_isAbsName(*fnamep))
{
*fnamep = FullName_save(*fnamep, *p != NUL);
vim_free(*bufp); /* free any allocated file name */
*bufp = *fnamep;
if (*fnamep == NULL)
return -1;
}
#ifdef WIN3264
# if _WIN32_WINNT >= 0x0500
if (vim_strchr(*fnamep, '~') != NULL)
{
/* Expand 8.3 filename to full path. Needed to make sure the same
* file does not have two different names.
* Note: problem does not occur if _WIN32_WINNT < 0x0500. */
p = alloc(_MAX_PATH + 1);
if (p != NULL)
{
if (GetLongPathName(*fnamep, p, _MAX_PATH))
{
vim_free(*bufp);
*bufp = *fnamep = p;
}
else
vim_free(p);
}
}
# endif
#endif
/* Append a path separator to a directory. */
if (mch_isdir(*fnamep))
{
/* Make room for one or two extra characters. */
*fnamep = vim_strnsave(*fnamep, (int)STRLEN(*fnamep) + 2);
vim_free(*bufp); /* free any allocated file name */
*bufp = *fnamep;
if (*fnamep == NULL)
return -1;
add_pathsep(*fnamep);
}
}
/* ":." - path relative to the current directory */
/* ":~" - path relative to the home directory */
/* ":8" - shortname path - postponed till after */
while (src[*usedlen] == ':'
&& ((c = src[*usedlen + 1]) == '.' || c == '~' || c == '8'))
{
*usedlen += 2;
if (c == '8')
{
#ifdef WIN3264
has_shortname = 1; /* Postpone this. */
#endif
continue;
}
pbuf = NULL;
/* Need full path first (use expand_env() to remove a "~/") */
if (!has_fullname)
{
if (c == '.' && **fnamep == '~')
p = pbuf = expand_env_save(*fnamep);
else
p = pbuf = FullName_save(*fnamep, FALSE);
}
else
p = *fnamep;
has_fullname = 0;
if (p != NULL)
{
if (c == '.')
{
mch_dirname(dirname, MAXPATHL);
s = shorten_fname(p, dirname);
if (s != NULL)
{
*fnamep = s;
if (pbuf != NULL)
{
vim_free(*bufp); /* free any allocated file name */
*bufp = pbuf;
pbuf = NULL;
}
}
}
else
{
home_replace(NULL, p, dirname, MAXPATHL, TRUE);
/* Only replace it when it starts with '~' */
if (*dirname == '~')
{
s = vim_strsave(dirname);
if (s != NULL)
{
*fnamep = s;
vim_free(*bufp);
*bufp = s;
}
}
}
vim_free(pbuf);
}
}
tail = gettail(*fnamep);
*fnamelen = (int)STRLEN(*fnamep);
/* ":h" - head, remove "/file_name", can be repeated */
/* Don't remove the first "/" or "c:\" */
while (src[*usedlen] == ':' && src[*usedlen + 1] == 'h')
{
valid |= VALID_HEAD;
*usedlen += 2;
s = get_past_head(*fnamep);
while (tail > s && after_pathsep(s, tail))
mb_ptr_back(*fnamep, tail);
*fnamelen = (int)(tail - *fnamep);
#ifdef VMS
if (*fnamelen > 0)
*fnamelen += 1; /* the path separator is part of the path */
#endif
if (*fnamelen == 0)
{
/* Result is empty. Turn it into "." to make ":cd %:h" work. */
p = vim_strsave((char_u *)".");
if (p == NULL)
return -1;
vim_free(*bufp);
*bufp = *fnamep = tail = p;
*fnamelen = 1;
}
else
{
while (tail > s && !after_pathsep(s, tail))
mb_ptr_back(*fnamep, tail);
}
}
/* ":8" - shortname */
if (src[*usedlen] == ':' && src[*usedlen + 1] == '8')
{
*usedlen += 2;
#ifdef WIN3264
has_shortname = 1;
#endif
}
#ifdef WIN3264
/*
* Handle ":8" after we have done 'heads' and before we do 'tails'.
*/
if (has_shortname)
{
/* Copy the string if it is shortened by :h and when it wasn't copied
* yet, because we are going to change it in place. Avoids changing
* the buffer name for "%:8". */
if (*fnamelen < (int)STRLEN(*fnamep) || *fnamep == fname_start)
{
p = vim_strnsave(*fnamep, *fnamelen);
if (p == NULL)
return -1;
vim_free(*bufp);
*bufp = *fnamep = p;
}
/* Split into two implementations - makes it easier. First is where
* there isn't a full name already, second is where there is. */
if (!has_fullname && !vim_isAbsName(*fnamep))
{
if (shortpath_for_partial(fnamep, bufp, fnamelen) == FAIL)
return -1;
}
else
{
int l = *fnamelen;
/* Simple case, already have the full-name.
* Nearly always shorter, so try first time. */
if (get_short_pathname(fnamep, bufp, &l) == FAIL)
return -1;
if (l == 0)
{
/* Couldn't find the filename, search the paths. */
l = *fnamelen;
if (shortpath_for_invalid_fname(fnamep, bufp, &l) == FAIL)
return -1;
}
*fnamelen = l;
}
}
#endif /* WIN3264 */
/* ":t" - tail, just the basename */
if (src[*usedlen] == ':' && src[*usedlen + 1] == 't')
{
*usedlen += 2;
*fnamelen -= (int)(tail - *fnamep);
*fnamep = tail;
}
/* ":e" - extension, can be repeated */
/* ":r" - root, without extension, can be repeated */
while (src[*usedlen] == ':'
&& (src[*usedlen + 1] == 'e' || src[*usedlen + 1] == 'r'))
{
/* find a '.' in the tail:
* - for second :e: before the current fname
* - otherwise: The last '.'
*/
if (src[*usedlen + 1] == 'e' && *fnamep > tail)
s = *fnamep - 2;
else
s = *fnamep + *fnamelen - 1;
for ( ; s > tail; --s)
if (s[0] == '.')
break;
if (src[*usedlen + 1] == 'e') /* :e */
{
if (s > tail)
{
*fnamelen += (int)(*fnamep - (s + 1));
*fnamep = s + 1;
#ifdef VMS
/* cut version from the extension */
s = *fnamep + *fnamelen - 1;
for ( ; s > *fnamep; --s)
if (s[0] == ';')
break;
if (s > *fnamep)
*fnamelen = s - *fnamep;
#endif
}
else if (*fnamep <= tail)
*fnamelen = 0;
}
else /* :r */
{
if (s > tail) /* remove one extension */
*fnamelen = (int)(s - *fnamep);
}
*usedlen += 2;
}
/* ":s?pat?foo?" - substitute */
/* ":gs?pat?foo?" - global substitute */
if (src[*usedlen] == ':'
&& (src[*usedlen + 1] == 's'
|| (src[*usedlen + 1] == 'g' && src[*usedlen + 2] == 's')))
{
char_u *str;
char_u *pat;
char_u *sub;
int sep;
char_u *flags;
int didit = FALSE;
flags = (char_u *)"";
s = src + *usedlen + 2;
if (src[*usedlen + 1] == 'g')
{
flags = (char_u *)"g";
++s;
}
sep = *s++;
if (sep)
{
/* find end of pattern */
p = vim_strchr(s, sep);
if (p != NULL)
{
pat = vim_strnsave(s, (int)(p - s));
if (pat != NULL)
{
s = p + 1;
/* find end of substitution */
p = vim_strchr(s, sep);
if (p != NULL)
{
sub = vim_strnsave(s, (int)(p - s));
str = vim_strnsave(*fnamep, *fnamelen);
if (sub != NULL && str != NULL)
{
*usedlen = (int)(p + 1 - src);
s = do_string_sub(str, pat, sub, flags);
if (s != NULL)
{
*fnamep = s;
*fnamelen = (int)STRLEN(s);
vim_free(*bufp);
*bufp = s;
didit = TRUE;
}
}
vim_free(sub);
vim_free(str);
}
vim_free(pat);
}
}
/* after using ":s", repeat all the modifiers */
if (didit)
goto repeat;
}
}
if (src[*usedlen] == ':' && src[*usedlen + 1] == 'S')
{
p = vim_strsave_shellescape(*fnamep, FALSE, FALSE);
if (p == NULL)
return -1;
vim_free(*bufp);
*bufp = *fnamep = p;
*fnamelen = (int)STRLEN(p);
*usedlen += 2;
}
return valid;
}
/*
* Perform a substitution on "str" with pattern "pat" and substitute "sub".
* "flags" can be "g" to do a global substitute.
* Returns an allocated string, NULL for error.
*/
char_u *
do_string_sub(str, pat, sub, flags)
char_u *str;
char_u *pat;
char_u *sub;
char_u *flags;
{
int sublen;
regmatch_T regmatch;
int i;
int do_all;
char_u *tail;
char_u *end;
garray_T ga;
char_u *ret;
char_u *save_cpo;
char_u *zero_width = NULL;
/* Make 'cpoptions' empty, so that the 'l' flag doesn't work here */
save_cpo = p_cpo;
p_cpo = empty_option;
ga_init2(&ga, 1, 200);
do_all = (flags[0] == 'g');
regmatch.rm_ic = p_ic;
regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
if (regmatch.regprog != NULL)
{
tail = str;
end = str + STRLEN(str);
while (vim_regexec_nl(&regmatch, str, (colnr_T)(tail - str)))
{
/* Skip empty match except for first match. */
if (regmatch.startp[0] == regmatch.endp[0])
{
if (zero_width == regmatch.startp[0])
{
/* avoid getting stuck on a match with an empty string */
i = MB_PTR2LEN(tail);
mch_memmove((char_u *)ga.ga_data + ga.ga_len, tail,
(size_t)i);
ga.ga_len += i;
tail += i;
continue;
}
zero_width = regmatch.startp[0];
}
/*
* Get some space for a temporary buffer to do the substitution
* into. It will contain:
* - The text up to where the match is.
* - The substituted text.
* - The text after the match.
*/
sublen = vim_regsub(&regmatch, sub, tail, FALSE, TRUE, FALSE);
if (ga_grow(&ga, (int)((end - tail) + sublen -
(regmatch.endp[0] - regmatch.startp[0]))) == FAIL)
{
ga_clear(&ga);
break;
}
/* copy the text up to where the match is */
i = (int)(regmatch.startp[0] - tail);
mch_memmove((char_u *)ga.ga_data + ga.ga_len, tail, (size_t)i);
/* add the substituted text */
(void)vim_regsub(&regmatch, sub, (char_u *)ga.ga_data
+ ga.ga_len + i, TRUE, TRUE, FALSE);
ga.ga_len += i + sublen - 1;
tail = regmatch.endp[0];
if (*tail == NUL)
break;
if (!do_all)
break;
}
if (ga.ga_data != NULL)
STRCPY((char *)ga.ga_data + ga.ga_len, tail);
vim_regfree(regmatch.regprog);
}
ret = vim_strsave(ga.ga_data == NULL ? str : (char_u *)ga.ga_data);
ga_clear(&ga);
if (p_cpo == empty_option)
p_cpo = save_cpo;
else
/* Darn, evaluating {sub} expression changed the value. */
free_string_option(save_cpo);
return ret;
}
#endif /* defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) */