| /* 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. |
| */ |
| #if defined(MSDOS) || defined(MSWIN) |
| # include <io.h> /* for mch_open(), must be before vim.h */ |
| #endif |
| |
| #include "vim.h" |
| |
| #ifdef AMIGA |
| # include <time.h> /* for strftime() */ |
| #endif |
| |
| #ifdef MACOS |
| # include <time.h> /* for time_t */ |
| #endif |
| |
| #ifdef HAVE_FCNTL_H |
| # include <fcntl.h> |
| #endif |
| |
| #if defined(FEAT_EVAL) || defined(PROTO) |
| |
| #if SIZEOF_INT <= 3 /* use long if int is smaller than 32 bits */ |
| typedef long varnumber_T; |
| #else |
| typedef int varnumber_T; |
| #endif |
| |
| /* |
| * Structure to hold an internal variable. |
| */ |
| typedef struct |
| { |
| char_u *var_name; /* name of variable */ |
| char var_type; /* VAR_NUMBER or VAR_STRING */ |
| union |
| { |
| varnumber_T var_number; /* number value */ |
| char_u *var_string; /* string value (Careful: can be NULL!) */ |
| } var_val; |
| } var; |
| |
| #define VAR_UNKNOWN 0 |
| #define VAR_NUMBER 1 |
| #define VAR_STRING 2 |
| |
| typedef var * VAR; |
| |
| /* |
| * All user-defined global variables are stored in "variables". |
| */ |
| garray_T variables = {0, 0, sizeof(var), 4, NULL}; |
| |
| /* |
| * Array to hold an array with variables local to each sourced script. |
| */ |
| static garray_T ga_scripts = {0, 0, sizeof(garray_T), 4, NULL}; |
| #define SCRIPT_VARS(id) (((garray_T *)ga_scripts.ga_data)[(id) - 1]) |
| |
| |
| #define VAR_ENTRY(idx) (((VAR)(variables.ga_data))[idx]) |
| #define VAR_GAP_ENTRY(idx, gap) (((VAR)(gap->ga_data))[idx]) |
| #define BVAR_ENTRY(idx) (((VAR)(curbuf->b_vars.ga_data))[idx]) |
| #define WVAR_ENTRY(idx) (((VAR)(curwin->w_vars.ga_data))[idx]) |
| |
| static int echo_attr = 0; /* attributes used for ":echo" */ |
| |
| /* |
| * Structure to hold info for a user function. |
| */ |
| typedef struct ufunc ufunc_T; |
| |
| struct ufunc |
| { |
| ufunc_T *next; /* next function in list */ |
| char_u *name; /* name of function; can start with <SNR>123_ |
| (<SNR> is K_SPECIAL KS_EXTRA KE_SNR) */ |
| int varargs; /* variable nr of arguments */ |
| int flags; |
| int calls; /* nr of active calls */ |
| garray_T args; /* arguments */ |
| garray_T lines; /* function lines */ |
| scid_T script_ID; /* ID of script where function was defined, |
| used for s: variables */ |
| }; |
| |
| /* function flags */ |
| #define FC_ABORT 1 /* abort function on error */ |
| #define FC_RANGE 2 /* function accepts range */ |
| |
| /* |
| * All user-defined functions are found in the forward-linked function list. |
| * The first function is pointed at by firstfunc. |
| */ |
| ufunc_T *firstfunc = NULL; |
| |
| #define FUNCARG(fp, j) ((char_u **)(fp->args.ga_data))[j] |
| #define FUNCLINE(fp, j) ((char_u **)(fp->lines.ga_data))[j] |
| |
| /* structure to hold info for a function that is currently being executed. */ |
| struct funccall |
| { |
| ufunc_T *func; /* function being called */ |
| int linenr; /* next line to be executed */ |
| int returned; /* ":return" used */ |
| int argcount; /* nr of arguments */ |
| VAR argvars; /* arguments */ |
| var a0_var; /* "a:0" variable */ |
| var firstline; /* "a:firstline" variable */ |
| var lastline; /* "a:lastline" variable */ |
| garray_T l_vars; /* local function variables */ |
| VAR retvar; /* return value variable */ |
| 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 */ |
| }; |
| |
| /* |
| * Return the name of the executed function. |
| */ |
| char_u * |
| func_name(cookie) |
| void *cookie; |
| { |
| return ((struct funccall *)cookie)->func->name; |
| } |
| |
| /* |
| * Return the address holding the next breakpoint line for a funccall cookie. |
| */ |
| linenr_T * |
| func_breakpoint(cookie) |
| void *cookie; |
| { |
| return &((struct funccall *)cookie)->breakpoint; |
| } |
| |
| /* |
| * Return the address holding the debug tick for a funccall cookie. |
| */ |
| int * |
| func_dbg_tick(cookie) |
| void *cookie; |
| { |
| return &((struct funccall *)cookie)->dbg_tick; |
| } |
| |
| /* |
| * Return the nesting level for a funccall cookie. |
| */ |
| int |
| func_level(cookie) |
| void *cookie; |
| { |
| return ((struct funccall *)cookie)->level; |
| } |
| |
| /* pointer to funccal for currently active function */ |
| struct funccall *current_funccal = NULL; |
| |
| /* |
| * Return TRUE when a function was ended by a ":return" command. |
| */ |
| int |
| current_func_returned() |
| { |
| return current_funccal->returned; |
| } |
| |
| |
| /* |
| * Array to hold the value of v: variables. |
| */ |
| #include "version.h" |
| |
| /* values for flags: */ |
| #define VV_COMPAT 1 /* compatible, also used without "v:" */ |
| #define VV_RO 2 /* read-only */ |
| |
| struct vimvar |
| { |
| char *name; /* name of variable, without v: */ |
| int len; /* length of name */ |
| char_u *val; /* current value (can also be a number!) */ |
| char type; /* VAR_NUMBER or VAR_STRING */ |
| char flags; /* VV_COMPAT and VV_RO */ |
| } vimvars[VV_LEN] = |
| { /* The order here must match the VV_ defines in vim.h! */ |
| {"count", sizeof("count") - 1, NULL, VAR_NUMBER, VV_COMPAT+VV_RO}, |
| {"count1", sizeof("count1") - 1, NULL, VAR_NUMBER, VV_RO}, |
| {"prevcount", sizeof("prevcount") - 1, NULL, VAR_NUMBER, VV_RO}, |
| {"errmsg", sizeof("errmsg") - 1, NULL, VAR_STRING, VV_COMPAT}, |
| {"warningmsg", sizeof("warningmsg") - 1, NULL, VAR_STRING, 0}, |
| {"statusmsg", sizeof("statusmsg") - 1, NULL, VAR_STRING, 0}, |
| {"shell_error", sizeof("shell_error") - 1, NULL, VAR_NUMBER, |
| VV_COMPAT+VV_RO}, |
| {"this_session", sizeof("this_session") - 1, NULL, VAR_STRING, VV_COMPAT}, |
| {"version", sizeof("version") - 1, (char_u *)VIM_VERSION_100, |
| VAR_NUMBER, VV_COMPAT+VV_RO}, |
| {"lnum", sizeof("lnum") - 1, NULL, VAR_NUMBER, VV_RO}, |
| {"termresponse", sizeof("termresponse") - 1, NULL, VAR_STRING, VV_RO}, |
| {"fname", sizeof("fname") - 1, NULL, VAR_STRING, VV_RO}, |
| {"lang", sizeof("lang") - 1, NULL, VAR_STRING, VV_RO}, |
| {"lc_time", sizeof("lc_time") - 1, NULL, VAR_STRING, VV_RO}, |
| {"ctype", sizeof("ctype") - 1, NULL, VAR_STRING, VV_RO}, |
| {"charconvert_from", sizeof("charconvert_from") - 1, NULL, VAR_STRING, VV_RO}, |
| {"charconvert_to", sizeof("charconvert_to") - 1, NULL, VAR_STRING, VV_RO}, |
| {"fname_in", sizeof("fname_in") - 1, NULL, VAR_STRING, VV_RO}, |
| {"fname_out", sizeof("fname_out") - 1, NULL, VAR_STRING, VV_RO}, |
| {"fname_new", sizeof("fname_new") - 1, NULL, VAR_STRING, VV_RO}, |
| {"fname_diff", sizeof("fname_diff") - 1, NULL, VAR_STRING, VV_RO}, |
| {"cmdarg", sizeof("cmdarg") - 1, NULL, VAR_STRING, VV_RO}, |
| {"foldstart", sizeof("foldstart") - 1, NULL, VAR_NUMBER, VV_RO}, |
| {"foldend", sizeof("foldend") - 1, NULL, VAR_NUMBER, VV_RO}, |
| {"folddashes", sizeof("folddashes") - 1, NULL, VAR_STRING, VV_RO}, |
| {"foldlevel", sizeof("foldlevel") - 1, NULL, VAR_NUMBER, VV_RO}, |
| {"progname", sizeof("progname") - 1, NULL, VAR_STRING, VV_RO}, |
| {"servername", sizeof("servername") - 1, NULL, VAR_STRING, VV_RO}, |
| {"dying", sizeof("dying") - 1, NULL, VAR_NUMBER, VV_RO}, |
| {"exception", sizeof("exception") - 1, NULL, VAR_STRING, VV_RO}, |
| {"throwpoint", sizeof("throwpoint") - 1, NULL, VAR_STRING, VV_RO}, |
| {"register", sizeof("register") - 1, NULL, VAR_STRING, VV_RO}, |
| {"cmdbang", sizeof("cmdbang") - 1, NULL, VAR_NUMBER, VV_RO}, |
| {"insertmode", sizeof("insertmode") - 1, NULL, VAR_STRING, VV_RO}, |
| }; |
| |
| static int eval0 __ARGS((char_u *arg, VAR retvar, char_u **nextcmd, int evaluate)); |
| static int eval1 __ARGS((char_u **arg, VAR retvar, int evaluate)); |
| static int eval2 __ARGS((char_u **arg, VAR retvar, int evaluate)); |
| static int eval3 __ARGS((char_u **arg, VAR retvar, int evaluate)); |
| static int eval4 __ARGS((char_u **arg, VAR retvar, int evaluate)); |
| static int eval5 __ARGS((char_u **arg, VAR retvar, int evaluate)); |
| static int eval6 __ARGS((char_u **arg, VAR retvar, int evaluate)); |
| static int eval7 __ARGS((char_u **arg, VAR retvar, int evaluate)); |
| static int get_option_var __ARGS((char_u **arg, VAR retvar, int evaluate)); |
| static int get_string_var __ARGS((char_u **arg, VAR retvar, int evaluate)); |
| static int get_lit_string_var __ARGS((char_u **arg, VAR retvar, int evaluate)); |
| static int get_env_var __ARGS((char_u **arg, VAR retvar, int evaluate)); |
| static int find_internal_func __ARGS((char_u *name)); |
| static int get_func_var __ARGS((char_u *name, int len, VAR retvar, char_u **arg, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate)); |
| static int call_func __ARGS((char_u *name, int len, VAR retvar, int argcount, VAR argvars, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate)); |
| static void f_append __ARGS((VAR argvars, VAR retvar)); |
| static void f_argc __ARGS((VAR argvars, VAR retvar)); |
| static void f_argidx __ARGS((VAR argvars, VAR retvar)); |
| static void f_argv __ARGS((VAR argvars, VAR retvar)); |
| static void f_browse __ARGS((VAR argvars, VAR retvar)); |
| static buf_T *find_buffer __ARGS((VAR avar)); |
| static void f_bufexists __ARGS((VAR argvars, VAR retvar)); |
| static void f_buflisted __ARGS((VAR argvars, VAR retvar)); |
| static void f_bufloaded __ARGS((VAR argvars, VAR retvar)); |
| static buf_T *get_buf_var __ARGS((VAR avar)); |
| static void f_bufname __ARGS((VAR argvars, VAR retvar)); |
| static void f_bufnr __ARGS((VAR argvars, VAR retvar)); |
| static void f_bufwinnr __ARGS((VAR argvars, VAR retvar)); |
| static void f_byte2line __ARGS((VAR argvars, VAR retvar)); |
| static void f_char2nr __ARGS((VAR argvars, VAR retvar)); |
| static void f_cindent __ARGS((VAR argvars, VAR retvar)); |
| static void f_col __ARGS((VAR argvars, VAR retvar)); |
| static void f_confirm __ARGS((VAR argvars, VAR retvar)); |
| static void f_cscope_connection __ARGS((VAR argvars, VAR retvar)); |
| static void f_cursor __ARGS((VAR argsvars, VAR retvar)); |
| static void f_delete __ARGS((VAR argvars, VAR retvar)); |
| static void f_did_filetype __ARGS((VAR argvars, VAR retvar)); |
| static void f_escape __ARGS((VAR argvars, VAR retvar)); |
| static void f_eventhandler __ARGS((VAR argvars, VAR retvar)); |
| static void f_executable __ARGS((VAR argvars, VAR retvar)); |
| static void f_exists __ARGS((VAR argvars, VAR retvar)); |
| static void f_expand __ARGS((VAR argvars, VAR retvar)); |
| static void f_filereadable __ARGS((VAR argvars, VAR retvar)); |
| static void f_filewritable __ARGS((VAR argvars, VAR retvar)); |
| static void f_fnamemodify __ARGS((VAR argvars, VAR retvar)); |
| static void f_foldclosed __ARGS((VAR argvars, VAR retvar)); |
| static void f_foldclosedend __ARGS((VAR argvars, VAR retvar)); |
| static void foldclosed_both __ARGS((VAR argvars, VAR retvar, int end)); |
| static void f_foldlevel __ARGS((VAR argvars, VAR retvar)); |
| static void f_foldtext __ARGS((VAR argvars, VAR retvar)); |
| static void f_foreground __ARGS((VAR argvars, VAR retvar)); |
| static void f_getbufvar __ARGS((VAR argvars, VAR retvar)); |
| static void f_getchar __ARGS((VAR argvars, VAR retvar)); |
| static void f_getcharmod __ARGS((VAR argvars, VAR retvar)); |
| static void f_getcmdline __ARGS((VAR argvars, VAR retvar)); |
| static void f_getcmdpos __ARGS((VAR argvars, VAR retvar)); |
| static void f_getcwd __ARGS((VAR argvars, VAR retvar)); |
| static void f_getfsize __ARGS((VAR argvars, VAR retvar)); |
| static void f_getftime __ARGS((VAR argvars, VAR retvar)); |
| static void f_getline __ARGS((VAR argvars, VAR retvar)); |
| static void f_getreg __ARGS((VAR argvars, VAR retvar)); |
| static void f_getregtype __ARGS((VAR argvars, VAR retvar)); |
| static void f_getwinposx __ARGS((VAR argvars, VAR retvar)); |
| static void f_getwinposy __ARGS((VAR argvars, VAR retvar)); |
| static void f_getwinvar __ARGS((VAR argvars, VAR retvar)); |
| static void f_glob __ARGS((VAR argvars, VAR retvar)); |
| static void f_globpath __ARGS((VAR argvars, VAR retvar)); |
| static void f_has __ARGS((VAR argvars, VAR retvar)); |
| static void f_hasmapto __ARGS((VAR argvars, VAR retvar)); |
| static void f_histadd __ARGS((VAR argvars, VAR retvar)); |
| static void f_histdel __ARGS((VAR argvars, VAR retvar)); |
| static void f_histget __ARGS((VAR argvars, VAR retvar)); |
| static void f_histnr __ARGS((VAR argvars, VAR retvar)); |
| static void f_hlexists __ARGS((VAR argvars, VAR retvar)); |
| static void f_hlID __ARGS((VAR argvars, VAR retvar)); |
| static void f_hostname __ARGS((VAR argvars, VAR retvar)); |
| static void f_iconv __ARGS((VAR argvars, VAR retvar)); |
| static void f_indent __ARGS((VAR argvars, VAR retvar)); |
| static void f_isdirectory __ARGS((VAR argvars, VAR retvar)); |
| static void f_input __ARGS((VAR argvars, VAR retvar)); |
| static void f_inputdialog __ARGS((VAR argvars, VAR retvar)); |
| static void f_inputrestore __ARGS((VAR argvars, VAR retvar)); |
| static void f_inputsave __ARGS((VAR argvars, VAR retvar)); |
| static void f_inputsecret __ARGS((VAR argvars, VAR retvar)); |
| static void f_last_buffer_nr __ARGS((VAR argvars, VAR retvar)); |
| static void f_libcall __ARGS((VAR argvars, VAR retvar)); |
| static void f_libcallnr __ARGS((VAR argvars, VAR retvar)); |
| static void libcall_common __ARGS((VAR argvars, VAR retvar, int type)); |
| static void f_line __ARGS((VAR argvars, VAR retvar)); |
| static void f_line2byte __ARGS((VAR argvars, VAR retvar)); |
| static void f_lispindent __ARGS((VAR argvars, VAR retvar)); |
| static void f_localtime __ARGS((VAR argvars, VAR retvar)); |
| static void f_maparg __ARGS((VAR argvars, VAR retvar)); |
| static void f_mapcheck __ARGS((VAR argvars, VAR retvar)); |
| static void get_maparg __ARGS((VAR argvars, VAR retvar, int exact)); |
| static void f_match __ARGS((VAR argvars, VAR retvar)); |
| static void f_matchend __ARGS((VAR argvars, VAR retvar)); |
| static void f_matchstr __ARGS((VAR argvars, VAR retvar)); |
| static void f_mode __ARGS((VAR argvars, VAR retvar)); |
| static void f_nextnonblank __ARGS((VAR argvars, VAR retvar)); |
| static void f_nr2char __ARGS((VAR argvars, VAR retvar)); |
| static void f_prevnonblank __ARGS((VAR argvars, VAR retvar)); |
| static void f_setbufvar __ARGS((VAR argvars, VAR retvar)); |
| static void f_setcmdpos __ARGS((VAR argvars, VAR retvar)); |
| static void f_setwinvar __ARGS((VAR argvars, VAR retvar)); |
| static void f_rename __ARGS((VAR argvars, VAR retvar)); |
| static void f_resolve __ARGS((VAR argvars, VAR retvar)); |
| static void f_search __ARGS((VAR argvars, VAR retvar)); |
| static void f_searchpair __ARGS((VAR argvars, VAR retvar)); |
| static int get_search_arg __ARGS((VAR varp, int *flagsp)); |
| static void f_remote_expr __ARGS((VAR argvars, VAR retvar)); |
| static void f_remote_foreground __ARGS((VAR argvars, VAR retvar)); |
| static void f_remote_peek __ARGS((VAR argvars, VAR retvar)); |
| static void f_remote_read __ARGS((VAR argvars, VAR retvar)); |
| static void f_remote_send __ARGS((VAR argvars, VAR retvar)); |
| static void f_server2client __ARGS((VAR argvars, VAR retvar)); |
| static void f_serverlist __ARGS((VAR argvars, VAR retvar)); |
| static void f_setline __ARGS((VAR argvars, VAR retvar)); |
| static void f_setreg __ARGS((VAR argvars, VAR retvar)); |
| static void f_simplify __ARGS((VAR argvars, VAR retvar)); |
| static void find_some_match __ARGS((VAR argvars, VAR retvar, int start)); |
| static void f_strftime __ARGS((VAR argvars, VAR retvar)); |
| static void f_stridx __ARGS((VAR argvars, VAR retvar)); |
| static void f_strlen __ARGS((VAR argvars, VAR retvar)); |
| static void f_strpart __ARGS((VAR argvars, VAR retvar)); |
| static void f_strridx __ARGS((VAR argvars, VAR retvar)); |
| static void f_strtrans __ARGS((VAR argvars, VAR retvar)); |
| static void f_synID __ARGS((VAR argvars, VAR retvar)); |
| static void f_synIDattr __ARGS((VAR argvars, VAR retvar)); |
| static void f_synIDtrans __ARGS((VAR argvars, VAR retvar)); |
| static void f_system __ARGS((VAR argvars, VAR retvar)); |
| static void f_submatch __ARGS((VAR argvars, VAR retvar)); |
| static void f_substitute __ARGS((VAR argvars, VAR retvar)); |
| static void f_tempname __ARGS((VAR argvars, VAR retvar)); |
| static void f_tolower __ARGS((VAR argvars, VAR retvar)); |
| static void f_toupper __ARGS((VAR argvars, VAR retvar)); |
| static void f_tr __ARGS((VAR argvars, VAR retvar)); |
| static void f_type __ARGS((VAR argvars, VAR retvar)); |
| static void f_virtcol __ARGS((VAR argvars, VAR retvar)); |
| static void f_visualmode __ARGS((VAR argvars, VAR retvar)); |
| static void f_winbufnr __ARGS((VAR argvars, VAR retvar)); |
| static void f_wincol __ARGS((VAR argvars, VAR retvar)); |
| static void f_winheight __ARGS((VAR argvars, VAR retvar)); |
| static void f_winline __ARGS((VAR argvars, VAR retvar)); |
| static void f_winnr __ARGS((VAR argvars, VAR retvar)); |
| static void f_winrestcmd __ARGS((VAR argvars, VAR retvar)); |
| static void f_winwidth __ARGS((VAR argvars, VAR retvar)); |
| static win_T *find_win_by_nr __ARGS((VAR vp)); |
| static pos_T *var2fpos __ARGS((VAR varp, int lnum)); |
| static int get_env_len __ARGS((char_u **arg)); |
| static int get_id_len __ARGS((char_u **arg)); |
| static int get_func_len __ARGS((char_u **arg, char_u **alias, int evaluate)); |
| static char_u *find_name_end __ARGS((char_u *arg, char_u **expr_start, char_u **expr_end)); |
| static int eval_isnamec __ARGS((int c)); |
| static int find_vim_var __ARGS((char_u *name, int len)); |
| static int get_var_var __ARGS((char_u *name, int len, VAR retvar)); |
| static VAR alloc_var __ARGS((void)); |
| static VAR alloc_string_var __ARGS((char_u *string)); |
| static void free_var __ARGS((VAR varp)); |
| static void clear_var __ARGS((VAR varp)); |
| static long get_var_number __ARGS((VAR varp)); |
| static linenr_T get_var_lnum __ARGS((VAR argvars)); |
| static char_u *get_var_string __ARGS((VAR varp)); |
| static char_u *get_var_string_buf __ARGS((VAR varp, char_u *buf)); |
| static VAR find_var __ARGS((char_u *name, int writing)); |
| static VAR find_var_in_ga __ARGS((garray_T *gap, char_u *varname)); |
| static garray_T *find_var_ga __ARGS((char_u *name, char_u **varname)); |
| static void var_free_one __ARGS((VAR v)); |
| static void list_one_var __ARGS((VAR v, char_u *prefix)); |
| static void list_vim_var __ARGS((int i)); |
| static void list_one_var_a __ARGS((char_u *prefix, char_u *name, int type, char_u *string)); |
| static void set_var __ARGS((char_u *name, VAR varp)); |
| static void copy_var __ARGS((VAR from, VAR to)); |
| 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 internal)); |
| 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 void cat_func_name __ARGS((char_u *buf, ufunc_T *fp)); |
| static ufunc_T *find_func __ARGS((char_u *name)); |
| static void call_user_func __ARGS((ufunc_T *fp, int argcount, VAR argvars, VAR retvar, linenr_T firstline, linenr_T lastline)); |
| |
| /* Magic braces are always enabled, otherwise Vim scripts would not be |
| * portable. */ |
| #define FEAT_MAGIC_BRACES |
| |
| #ifdef FEAT_MAGIC_BRACES |
| static char_u * make_expanded_name __ARGS((char_u *in_start, char_u *expr_start, char_u *expr_end, char_u *in_end)); |
| #endif |
| |
| /* |
| * Set an internal variable to a string value. Creates the variable if it does |
| * not already exist. |
| */ |
| void |
| set_internal_string_var(name, value) |
| char_u *name; |
| char_u *value; |
| { |
| char_u *val; |
| VAR varp; |
| |
| val = vim_strsave(value); |
| if (val != NULL) |
| { |
| varp = alloc_string_var(val); |
| if (varp != NULL) |
| { |
| set_var(name, varp); |
| free_var(varp); |
| } |
| } |
| } |
| |
| # if defined(FEAT_MBYTE) || defined(PROTO) |
| int |
| eval_charconvert(enc_from, enc_to, fname_from, fname_to) |
| 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 */ |
| { |
| var retvar; |
| int retval = FALSE; |
| |
| if (skip) |
| ++emsg_skip; |
| if (eval0(arg, &retvar, nextcmd, !skip) == FAIL) |
| { |
| *error = TRUE; |
| } |
| else |
| { |
| *error = FALSE; |
| if (!skip) |
| { |
| retval = (get_var_number(&retvar) != 0); |
| clear_var(&retvar); |
| } |
| } |
| 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 */ |
| { |
| var retvar; |
| char_u *retval; |
| |
| if (skip) |
| ++emsg_skip; |
| if (eval0(arg, &retvar, nextcmd, !skip) == FAIL || skip) |
| retval = NULL; |
| else |
| { |
| retval = vim_strsave(get_var_string(&retvar)); |
| clear_var(&retvar); |
| } |
| 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; |
| { |
| var retvar; |
| |
| *pp = skipwhite(*pp); |
| return eval1(pp, &retvar, FALSE); |
| } |
| |
| /* |
| * Top level evaluation function, returning a string. |
| * Return pointer to allocated memory, or NULL for failure. |
| */ |
| char_u * |
| eval_to_string(arg, nextcmd) |
| char_u *arg; |
| char_u **nextcmd; |
| { |
| var retvar; |
| char_u *retval; |
| |
| if (eval0(arg, &retvar, nextcmd, TRUE) == FAIL) |
| retval = NULL; |
| else |
| { |
| retval = vim_strsave(get_var_string(&retvar)); |
| clear_var(&retvar); |
| } |
| |
| return retval; |
| } |
| |
| /* |
| * Call eval_to_string() with "sandbox" set and not using local variables. |
| */ |
| char_u * |
| eval_to_string_safe(arg, nextcmd) |
| char_u *arg; |
| char_u **nextcmd; |
| { |
| char_u *retval; |
| void *save_funccalp; |
| |
| save_funccalp = save_funccal(); |
| ++sandbox; |
| retval = eval_to_string(arg, nextcmd); |
| --sandbox; |
| restore_funccal(save_funccalp); |
| return retval; |
| } |
| |
| #if 0 /* not used */ |
| /* |
| * Top level evaluation function, returning a string. |
| * Advances "arg" to the first non-blank after the evaluated expression. |
| * Return pointer to allocated memory, or NULL for failure. |
| * Doesn't give error messages. |
| */ |
| char_u * |
| eval_arg_to_string(arg) |
| char_u **arg; |
| { |
| var retvar; |
| char_u *retval; |
| int ret; |
| |
| ++emsg_off; |
| |
| ret = eval1(arg, &retvar, TRUE); |
| if (ret == FAIL) |
| retval = NULL; |
| else |
| { |
| retval = vim_strsave(get_var_string(&retvar)); |
| clear_var(&retvar); |
| } |
| |
| --emsg_off; |
| |
| return retval; |
| } |
| #endif |
| |
| /* |
| * Top level evaluation function, returning a number. |
| * Evaluates "expr" silently. |
| * Returns -1 for an error. |
| */ |
| int |
| eval_to_number(expr) |
| char_u *expr; |
| { |
| var retvar; |
| int retval; |
| char_u *p = expr; |
| |
| ++emsg_off; |
| |
| if (eval1(&p, &retvar, TRUE) == FAIL) |
| retval = -1; |
| else |
| { |
| retval = get_var_number(&retvar); |
| clear_var(&retvar); |
| } |
| --emsg_off; |
| |
| return retval; |
| } |
| |
| #if (defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)) || defined(PROTO) |
| /* |
| * Call some vimL function and return the result as a string |
| * Uses argv[argc] for the function arguments. |
| */ |
| char_u * |
| call_vim_function(func, argc, argv, safe) |
| char_u *func; |
| int argc; |
| char_u **argv; |
| int safe; /* use the sandbox */ |
| { |
| char_u *retval = NULL; |
| var retvar; |
| VAR argvars; |
| long n; |
| int len; |
| int i; |
| int doesrange; |
| void *save_funccalp = NULL; |
| |
| argvars = (VAR)alloc((unsigned)(argc * sizeof(var))); |
| if (argvars == NULL) |
| return NULL; |
| |
| 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].var_type = VAR_STRING; |
| argvars[i].var_val.var_string = ""; |
| continue; |
| } |
| |
| /* Recognize a number argument, the others must be strings. */ |
| vim_str2nr(argv[i], NULL, &len, TRUE, TRUE, &n, NULL); |
| if (len != 0 && len == (int)STRLEN(argv[i])) |
| { |
| argvars[i].var_type = VAR_NUMBER; |
| argvars[i].var_val.var_number = n; |
| } |
| else |
| { |
| argvars[i].var_type = VAR_STRING; |
| argvars[i].var_val.var_string = argv[i]; |
| } |
| } |
| |
| if (safe) |
| { |
| save_funccalp = save_funccal(); |
| ++sandbox; |
| } |
| |
| retvar.var_type = VAR_UNKNOWN; /* clear_var() uses this */ |
| if (call_func(func, (int)STRLEN(func), &retvar, argc, argvars, |
| curwin->w_cursor.lnum, curwin->w_cursor.lnum, |
| &doesrange, TRUE) == OK) |
| retval = vim_strsave(get_var_string(&retvar)); |
| |
| clear_var(&retvar); |
| vim_free(argvars); |
| |
| if (safe) |
| { |
| --sandbox; |
| restore_funccal(save_funccalp); |
| } |
| return retval; |
| } |
| #endif |
| |
| /* |
| * Save the current function call pointer, and set it to NULL. |
| * Used when executing autocommands and for ":source". |
| */ |
| void * |
| save_funccal() |
| { |
| struct funccall *fc; |
| |
| fc = current_funccal; |
| current_funccal = NULL; |
| return (void *)fc; |
| } |
| |
| void |
| restore_funccal(fc) |
| void *fc; |
| { |
| current_funccal = (struct funccall *)fc; |
| } |
| |
| #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; |
| { |
| var retvar; |
| int retval; |
| char_u *s; |
| |
| ++emsg_off; |
| ++sandbox; |
| *cp = NUL; |
| if (eval0(arg, &retvar, NULL, TRUE) == FAIL) |
| retval = 0; |
| else |
| { |
| /* If the result is a number, just return the number. */ |
| if (retvar.var_type == VAR_NUMBER) |
| retval = retvar.var_val.var_number; |
| else if (retvar.var_type == VAR_UNKNOWN |
| || retvar.var_val.var_string == NULL) |
| retval = 0; |
| else |
| { |
| /* If the result is a string, check if there is a non-digit before |
| * the number. */ |
| s = retvar.var_val.var_string; |
| if (!VIM_ISDIGIT(*s) && *s != '-') |
| *cp = *s++; |
| retval = atol((char *)s); |
| } |
| clear_var(&retvar); |
| } |
| --emsg_off; |
| --sandbox; |
| |
| return retval; |
| } |
| #endif |
| |
| #ifdef FEAT_MAGIC_BRACES |
| /* |
| * 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); |
| 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); |
| 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; |
| |
| } |
| #endif /* FEAT_MAGIC_BRACES */ |
| |
| /* |
| * ":let var = expr" assignment command. |
| * ":let var" list one variable value |
| * ":let" list all variable values |
| */ |
| void |
| ex_let(eap) |
| exarg_T *eap; |
| { |
| char_u *arg = eap->arg; |
| char_u *expr; |
| char_u *name; |
| VAR varp; |
| var retvar; |
| char_u *p; |
| int c1 = 0, c2; |
| int i; |
| char_u *expr_start; |
| char_u *expr_end; |
| char_u *name_end; |
| |
| name_end = find_name_end(arg, &expr_start, &expr_end); |
| expr = vim_strchr(name_end, '='); |
| if (expr == NULL) |
| { |
| if (ends_excmd(*arg)) |
| { |
| if (!eap->skip) |
| { |
| /* |
| * List all variables. |
| */ |
| for (i = 0; i < variables.ga_len && !got_int; ++i) |
| if (VAR_ENTRY(i).var_name != NULL) |
| list_one_var(&VAR_ENTRY(i), (char_u *)""); |
| for (i = 0; i < curbuf->b_vars.ga_len && !got_int; ++i) |
| if (BVAR_ENTRY(i).var_name != NULL) |
| list_one_var(&BVAR_ENTRY(i), (char_u *)"b:"); |
| for (i = 0; i < curwin->w_vars.ga_len && !got_int; ++i) |
| if (WVAR_ENTRY(i).var_name != NULL) |
| list_one_var(&WVAR_ENTRY(i), (char_u *)"w:"); |
| for (i = 0; i < VV_LEN && !got_int; ++i) |
| if (vimvars[i].type == VAR_NUMBER || vimvars[i].val != NULL) |
| list_vim_var(i); |
| } |
| } |
| else |
| { |
| int error = FALSE; |
| |
| /* |
| * List variables. |
| */ |
| while (!ends_excmd(*arg) && !got_int) |
| { |
| char_u *temp_string = NULL; |
| int arg_len; |
| |
| /* Find the end of the name. */ |
| name_end = find_name_end(arg, &expr_start, &expr_end); |
| |
| if (!vim_iswhite(*name_end) && !ends_excmd(*name_end)) |
| { |
| emsg_severe = TRUE; |
| EMSG(_(e_trailing)); |
| break; |
| } |
| if (!error && !eap->skip) |
| { |
| #ifdef FEAT_MAGIC_BRACES |
| if (expr_start != NULL) |
| { |
| temp_string = make_expanded_name(arg, expr_start, |
| expr_end, name_end); |
| if (temp_string == 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()) |
| { |
| emsg_severe = TRUE; |
| EMSG2(_(e_invarg2), arg); |
| break; |
| } |
| error = TRUE; |
| arg = skipwhite(name_end); |
| continue; |
| } |
| arg = temp_string; |
| arg_len = STRLEN(temp_string); |
| } |
| else |
| #endif |
| { |
| c1 = *name_end; |
| *name_end = NUL; |
| arg_len = (int)(name_end - arg); |
| } |
| i = find_vim_var(arg, arg_len); |
| if (i >= 0) |
| list_vim_var(i); |
| else if (STRCMP("b:changedtick", arg) == 0) |
| { |
| char_u numbuf[NUMBUFLEN]; |
| |
| sprintf((char *)numbuf, "%ld", |
| (long)curbuf->b_changedtick); |
| list_one_var_a((char_u *)"b:", (char_u *)"changedtick", |
| VAR_NUMBER, numbuf); |
| } |
| else |
| { |
| varp = find_var(arg, FALSE); |
| if (varp == NULL) |
| { |
| /* Skip further arguments but do continue to |
| * search for a trailing command. */ |
| EMSG2(_("E106: Unknown variable: \"%s\""), arg); |
| error = TRUE; |
| } |
| else |
| { |
| name = vim_strchr(arg, ':'); |
| if (name != NULL) |
| { |
| /* "a:" vars have no name stored, use whole |
| * arg */ |
| if (arg[0] == 'a' && arg[1] == ':') |
| c2 = NUL; |
| else |
| { |
| c2 = *++name; |
| *name = NUL; |
| } |
| list_one_var(varp, arg); |
| if (c2 != NUL) |
| *name = c2; |
| } |
| else |
| list_one_var(varp, (char_u *)""); |
| } |
| } |
| #ifdef FEAT_MAGIC_BRACES |
| if (expr_start != NULL) |
| vim_free(temp_string); |
| else |
| #endif |
| *name_end = c1; |
| } |
| arg = skipwhite(name_end); |
| } |
| } |
| eap->nextcmd = check_nextcmd(arg); |
| } |
| else |
| { |
| if (eap->skip) |
| ++emsg_skip; |
| i = eval0(expr + 1, &retvar, &eap->nextcmd, !eap->skip); |
| if (eap->skip) |
| { |
| if (i != FAIL) |
| clear_var(&retvar); |
| --emsg_skip; |
| } |
| else if (i != FAIL) |
| { |
| /* |
| * ":let $VAR = expr": Set environment variable. |
| */ |
| if (*arg == '$') |
| { |
| int len; |
| int cc; |
| |
| /* Find the end of the name. */ |
| ++arg; |
| name = arg; |
| len = get_env_len(&arg); |
| if (len == 0) |
| EMSG2(_(e_invarg2), name - 1); |
| else |
| { |
| if (*skipwhite(arg) != '=') |
| EMSG(_(e_letunexp)); |
| else |
| { |
| cc = name[len]; |
| name[len] = NUL; |
| p = get_var_string(&retvar); |
| 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; |
| name[len] = cc; |
| } |
| } |
| } |
| |
| /* |
| * ":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 == '&') |
| { |
| int opt_flags; |
| |
| /* |
| * Find the end of the name; |
| */ |
| p = find_option_end(&arg, &opt_flags); |
| if (p == NULL || *skipwhite(p) != '=') |
| EMSG(_(e_letunexp)); |
| else |
| { |
| c1 = *p; |
| *p = NUL; |
| set_option_value(arg, get_var_number(&retvar), |
| get_var_string(&retvar), opt_flags); |
| *p = c1; /* put back for error messages */ |
| } |
| } |
| |
| /* |
| * ":let @r = expr": Set register contents. |
| */ |
| else if (*arg == '@') |
| { |
| ++arg; |
| if (*skipwhite(arg + 1) != '=') |
| EMSG(_(e_letunexp)); |
| else |
| write_reg_contents(*arg == '@' ? '"' : *arg, |
| get_var_string(&retvar), -1, FALSE); |
| } |
| |
| /* |
| * ":let var = expr": Set internal variable. |
| */ |
| else if (eval_isnamec(*arg) && !VIM_ISDIGIT(*arg)) |
| { |
| /* Find the end of the name. */ |
| p = find_name_end(arg, &expr_start, &expr_end); |
| |
| if (*skipwhite(p) != '=') |
| EMSG(_(e_letunexp)); |
| else if (p - arg == 13 |
| && STRNCMP(arg, "b:changedtick", 13) == 0) |
| EMSG2(_(e_readonlyvar), arg); |
| #ifdef FEAT_MAGIC_BRACES |
| else if (expr_start != NULL) |
| { |
| char_u *temp_string; |
| |
| temp_string = make_expanded_name(arg, expr_start, |
| expr_end, p); |
| if (temp_string == 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()) |
| EMSG2(_(e_invarg2), arg); |
| } |
| else |
| { |
| set_var(temp_string, &retvar); |
| vim_free(temp_string); |
| } |
| } |
| #endif |
| else |
| { |
| c1 = *p; |
| *p = NUL; |
| set_var(arg, &retvar); |
| *p = c1; /* put char back for error messages */ |
| } |
| } |
| |
| else |
| { |
| EMSG2(_(e_invarg2), arg); |
| } |
| |
| clear_var(&retvar); |
| } |
| } |
| } |
| |
| #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; |
| |
| xp->xp_context = cmdidx == CMD_let ? EXPAND_USER_VARS |
| : cmdidx == CMD_call ? EXPAND_FUNCTIONS |
| : EXPAND_EXPRESSION; |
| while ((xp->xp_pattern = vim_strpbrk(arg, |
| (char_u *)"\"'+-*/%.=!?~|&$([<>,#")) != NULL) |
| { |
| c = *xp->xp_pattern; |
| if (c == '&') |
| { |
| c = xp->xp_pattern[1]; |
| if (c == '&') |
| { |
| ++xp->xp_pattern; |
| xp->xp_context = cmdidx != CMD_let || got_eq |
| ? EXPAND_EXPRESSION : EXPAND_NOTHING; |
| } |
| else if (c != ' ') |
| xp->xp_context = EXPAND_SETTINGS; |
| } |
| else if (c == '$') |
| { |
| /* environment variable */ |
| xp->xp_context = EXPAND_ENV_VARS; |
| } |
| else if (c == '=') |
| { |
| got_eq = TRUE; |
| xp->xp_context = EXPAND_EXPRESSION; |
| } |
| else if (c == '<' |
| && xp->xp_context == EXPAND_FUNCTIONS |
| && vim_strchr(xp->xp_pattern, '(') == NULL) |
| { |
| /* Function name can start with "<SNR>" */ |
| 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 */ |
| { |
| 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 |
| xp->xp_context = EXPAND_NOTHING; |
| 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 *alias; |
| char_u *name; |
| var retvar; |
| int len; |
| linenr_T lnum; |
| int doesrange; |
| int failed = FALSE; |
| |
| name = arg; |
| len = get_func_len(&arg, &alias, !eap->skip); |
| if (len == 0) |
| goto end; |
| if (alias != NULL) |
| name = alias; |
| |
| startarg = arg; |
| retvar.var_type = VAR_UNKNOWN; /* clear_var() uses this */ |
| |
| if (*startarg != '(') |
| { |
| EMSG2(_("E107: Missing braces: %s"), name); |
| 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; |
| } |
| arg = startarg; |
| if (get_func_var(name, len, &retvar, &arg, |
| eap->line1, eap->line2, &doesrange, !eap->skip) == FAIL) |
| { |
| failed = TRUE; |
| break; |
| } |
| clear_var(&retvar); |
| 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_var() |
| * 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: |
| if (alias != NULL) |
| vim_free(alias); |
| } |
| |
| /* |
| * ":unlet[!] var1 ... " command. |
| */ |
| void |
| ex_unlet(eap) |
| exarg_T *eap; |
| { |
| char_u *arg = eap->arg; |
| char_u *name_end; |
| char_u cc; |
| char_u *expr_start; |
| char_u *expr_end; |
| int error = FALSE; |
| |
| do |
| { |
| /* Find the end of the name. */ |
| name_end = find_name_end(arg, &expr_start, &expr_end); |
| |
| if (!vim_iswhite(*name_end) && !ends_excmd(*name_end)) |
| { |
| emsg_severe = TRUE; |
| EMSG(_(e_trailing)); |
| break; |
| } |
| |
| if (!error && !eap->skip) |
| { |
| #ifdef FEAT_MAGIC_BRACES |
| if (expr_start != NULL) |
| { |
| char_u *temp_string; |
| |
| temp_string = make_expanded_name(arg, expr_start, |
| expr_end, name_end); |
| if (temp_string == 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()) |
| { |
| emsg_severe = TRUE; |
| EMSG2(_(e_invarg2), arg); |
| break; |
| } |
| error = TRUE; |
| } |
| else |
| { |
| if (do_unlet(temp_string) == FAIL && !eap->forceit) |
| { |
| EMSG2(_("E108: No such variable: \"%s\""), temp_string); |
| error = TRUE; |
| } |
| vim_free(temp_string); |
| } |
| } |
| else |
| #endif |
| { |
| cc = *name_end; |
| *name_end = NUL; |
| |
| if (do_unlet(arg) == FAIL && !eap->forceit) |
| { |
| EMSG2(_("E108: No such variable: \"%s\""), arg); |
| error = TRUE; |
| } |
| |
| *name_end = cc; |
| } |
| } |
| arg = skipwhite(name_end); |
| } while (!ends_excmd(*arg)); |
| |
| eap->nextcmd = check_nextcmd(arg); |
| } |
| |
| /* |
| * "unlet" a variable. Return OK if it existed, FAIL if not. |
| */ |
| int |
| do_unlet(name) |
| char_u *name; |
| { |
| VAR v; |
| |
| v = find_var(name, TRUE); |
| if (v != NULL) |
| { |
| var_free_one(v); |
| return OK; |
| } |
| return FAIL; |
| } |
| |
| #if (defined(FEAT_MENU) && defined(FEAT_MULTI_LANG)) || defined(PROTO) |
| /* |
| * Delete all "menutrans_" variables. |
| */ |
| void |
| del_menutrans_vars() |
| { |
| int i; |
| |
| for (i = 0; i < variables.ga_len; ++i) |
| if (VAR_ENTRY(i).var_name != NULL |
| && STRNCMP(VAR_ENTRY(i).var_name, "menutrans_", 10) == 0) |
| var_free_one(&VAR_ENTRY(i)); |
| } |
| #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. |
| */ |
| /*ARGSUSED*/ |
| char_u * |
| get_user_var_name(xp, idx) |
| expand_T *xp; |
| int idx; |
| { |
| static int gidx; |
| static int bidx; |
| static int widx; |
| static int vidx; |
| char_u *name; |
| |
| if (idx == 0) |
| gidx = bidx = widx = vidx = 0; |
| if (gidx < variables.ga_len) /* Global variables */ |
| { |
| while ((name = VAR_ENTRY(gidx++).var_name) == NULL |
| && gidx < variables.ga_len) |
| /* skip */; |
| if (name != NULL) |
| { |
| if (STRNCMP("g:", xp->xp_pattern, 2) == 0) |
| return cat_prefix_varname('g', name); |
| else |
| return name; |
| } |
| } |
| if (bidx < curbuf->b_vars.ga_len) /* Current buffer variables */ |
| { |
| while ((name = BVAR_ENTRY(bidx++).var_name) == NULL |
| && bidx < curbuf->b_vars.ga_len) |
| /* skip */; |
| if (name != NULL) |
| return cat_prefix_varname('b', name); |
| } |
| if (bidx == curbuf->b_vars.ga_len) |
| { |
| ++bidx; |
| return (char_u *)"b:changedtick"; |
| } |
| if (widx < curwin->w_vars.ga_len) /* Current window variables */ |
| { |
| while ((name = WVAR_ENTRY(widx++).var_name) == NULL |
| && widx < curwin->w_vars.ga_len) |
| /* skip */; |
| if (name != NULL) |
| return cat_prefix_varname('w', name); |
| } |
| if (vidx < VV_LEN) /* Built-in variables */ |
| return cat_prefix_varname('v', (char_u *)vimvars[vidx++].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 retvar 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. |
| * Return OK or FAIL. |
| */ |
| static int |
| eval0(arg, retvar, nextcmd, evaluate) |
| char_u *arg; |
| VAR retvar; |
| char_u **nextcmd; |
| int evaluate; |
| { |
| int ret; |
| char_u *p; |
| |
| p = skipwhite(arg); |
| ret = eval1(&p, retvar, evaluate); |
| if (ret == FAIL || !ends_excmd(*p)) |
| { |
| if (ret != FAIL) |
| clear_var(retvar); |
| /* |
| * 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: |
| * expr1 ? expr0 : expr0 |
| * |
| * "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 |
| eval1(arg, retvar, evaluate) |
| char_u **arg; |
| VAR retvar; |
| int evaluate; |
| { |
| int result; |
| var var2; |
| |
| /* |
| * Get the first variable. |
| */ |
| if (eval2(arg, retvar, evaluate) == FAIL) |
| return FAIL; |
| |
| if ((*arg)[0] == '?') |
| { |
| result = FALSE; |
| if (evaluate) |
| { |
| if (get_var_number(retvar) != 0) |
| result = TRUE; |
| clear_var(retvar); |
| } |
| |
| /* |
| * Get the second variable. |
| */ |
| *arg = skipwhite(*arg + 1); |
| if (eval1(arg, retvar, evaluate && result) == FAIL) /* recursive! */ |
| return FAIL; |
| |
| /* |
| * Check for the ":". |
| */ |
| if ((*arg)[0] != ':') |
| { |
| EMSG(_("E109: Missing ':' after '?'")); |
| if (evaluate && result) |
| clear_var(retvar); |
| return FAIL; |
| } |
| |
| /* |
| * Get the third variable. |
| */ |
| *arg = skipwhite(*arg + 1); |
| if (eval1(arg, &var2, evaluate && !result) == FAIL) /* recursive! */ |
| { |
| if (evaluate && result) |
| clear_var(retvar); |
| return FAIL; |
| } |
| if (evaluate && !result) |
| *retvar = 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, retvar, evaluate) |
| char_u **arg; |
| VAR retvar; |
| int evaluate; |
| { |
| var var2; |
| long result; |
| int first; |
| |
| /* |
| * Get the first variable. |
| */ |
| if (eval3(arg, retvar, evaluate) == FAIL) |
| return FAIL; |
| |
| /* |
| * Repeat until there is no following "||". |
| */ |
| first = TRUE; |
| result = FALSE; |
| while ((*arg)[0] == '|' && (*arg)[1] == '|') |
| { |
| if (evaluate && first) |
| { |
| if (get_var_number(retvar) != 0) |
| result = TRUE; |
| clear_var(retvar); |
| 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_var_number(&var2) != 0) |
| result = TRUE; |
| clear_var(&var2); |
| } |
| if (evaluate) |
| { |
| retvar->var_type = VAR_NUMBER; |
| retvar->var_val.var_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, retvar, evaluate) |
| char_u **arg; |
| VAR retvar; |
| int evaluate; |
| { |
| var var2; |
| long result; |
| int first; |
| |
| /* |
| * Get the first variable. |
| */ |
| if (eval4(arg, retvar, evaluate) == FAIL) |
| return FAIL; |
| |
| /* |
| * Repeat until there is no following "&&". |
| */ |
| first = TRUE; |
| result = TRUE; |
| while ((*arg)[0] == '&' && (*arg)[1] == '&') |
| { |
| if (evaluate && first) |
| { |
| if (get_var_number(retvar) == 0) |
| result = FALSE; |
| clear_var(retvar); |
| 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_var_number(&var2) == 0) |
| result = FALSE; |
| clear_var(&var2); |
| } |
| if (evaluate) |
| { |
| retvar->var_type = VAR_NUMBER; |
| retvar->var_val.var_number = result; |
| } |
| } |
| |
| return OK; |
| } |
| |
| /* |
| * Handle third level expression: |
| * var1 == var2 |
| * var1 =~ var2 |
| * var1 != var2 |
| * var1 !~ var2 |
| * var1 > var2 |
| * var1 >= var2 |
| * var1 < var2 |
| * var1 <= 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, retvar, evaluate) |
| char_u **arg; |
| VAR retvar; |
| int evaluate; |
| { |
| var var2; |
| char_u *p; |
| int i; |
| exptype_T type = TYPE_UNKNOWN; |
| 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, retvar, 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; |
| } |
| |
| /* |
| * If there is a comparitive 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 appened: use 'ignorecase' */ |
| else |
| ic = p_ic; |
| |
| /* |
| * Get the second variable. |
| */ |
| *arg = skipwhite(p + len); |
| if (eval5(arg, &var2, evaluate) == FAIL) |
| { |
| clear_var(retvar); |
| return FAIL; |
| } |
| |
| if (evaluate) |
| { |
| /* |
| * If one of the two variables is a number, compare as a number. |
| * When using "=~" or "!~", always compare as string. |
| */ |
| if ((retvar->var_type == VAR_NUMBER || var2.var_type == VAR_NUMBER) |
| && type != TYPE_MATCH && type != TYPE_NOMATCH) |
| { |
| n1 = get_var_number(retvar); |
| n2 = get_var_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_var_string_buf(retvar, buf1); |
| s2 = get_var_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(®match, s1, (colnr_T)0); |
| vim_free(regmatch.regprog); |
| if (type == TYPE_NOMATCH) |
| n1 = !n1; |
| } |
| p_cpo = save_cpo; |
| break; |
| |
| case TYPE_UNKNOWN: break; /* avoid gcc warning */ |
| } |
| } |
| clear_var(retvar); |
| clear_var(&var2); |
| retvar->var_type = VAR_NUMBER; |
| retvar->var_val.var_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, retvar, evaluate) |
| char_u **arg; |
| VAR retvar; |
| int evaluate; |
| { |
| var var2; |
| int op; |
| long n1, n2; |
| char_u *s1, *s2; |
| char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN]; |
| char_u *p; |
| |
| /* |
| * Get the first variable. |
| */ |
| if (eval6(arg, retvar, evaluate) == FAIL) |
| return FAIL; |
| |
| /* |
| * Repeat computing, until no '+', '-' or '.' is following. |
| */ |
| for (;;) |
| { |
| op = **arg; |
| if (op != '+' && op != '-' && op != '.') |
| break; |
| |
| /* |
| * Get the second variable. |
| */ |
| *arg = skipwhite(*arg + 1); |
| if (eval6(arg, &var2, evaluate) == FAIL) |
| { |
| clear_var(retvar); |
| return FAIL; |
| } |
| |
| if (evaluate) |
| { |
| /* |
| * Compute the result. |
| */ |
| if (op == '.') |
| { |
| s1 = get_var_string_buf(retvar, buf1); |
| s2 = get_var_string_buf(&var2, buf2); |
| op = (int)STRLEN(s1); |
| p = alloc((unsigned)(op + STRLEN(s2) + 1)); |
| if (p != NULL) |
| { |
| STRCPY(p, s1); |
| STRCPY(p + op, s2); |
| } |
| clear_var(retvar); |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = p; |
| } |
| else |
| { |
| n1 = get_var_number(retvar); |
| n2 = get_var_number(&var2); |
| clear_var(retvar); |
| if (op == '+') |
| n1 = n1 + n2; |
| else |
| n1 = n1 - n2; |
| retvar->var_type = VAR_NUMBER; |
| retvar->var_val.var_number = n1; |
| } |
| clear_var(&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, retvar, evaluate) |
| char_u **arg; |
| VAR retvar; |
| int evaluate; |
| { |
| var var2; |
| int op; |
| long n1, n2; |
| |
| /* |
| * Get the first variable. |
| */ |
| if (eval7(arg, retvar, evaluate) == FAIL) |
| return FAIL; |
| |
| /* |
| * Repeat computing, until no '*', '/' or '%' is following. |
| */ |
| for (;;) |
| { |
| op = **arg; |
| if (op != '*' && op != '/' && op != '%') |
| break; |
| |
| if (evaluate) |
| { |
| n1 = get_var_number(retvar); |
| clear_var(retvar); |
| } |
| else |
| n1 = 0; |
| |
| /* |
| * Get the second variable. |
| */ |
| *arg = skipwhite(*arg + 1); |
| if (eval7(arg, &var2, evaluate) == FAIL) |
| return FAIL; |
| |
| if (evaluate) |
| { |
| n2 = get_var_number(&var2); |
| clear_var(&var2); |
| |
| /* |
| * Compute the result. |
| */ |
| if (op == '*') |
| n1 = n1 * n2; |
| else if (op == '/') |
| { |
| if (n2 == 0) /* give an error message? */ |
| n1 = 0x7fffffffL; |
| else |
| n1 = n1 / n2; |
| } |
| else |
| { |
| if (n2 == 0) /* give an error message? */ |
| n1 = 0; |
| else |
| n1 = n1 % n2; |
| } |
| retvar->var_type = VAR_NUMBER; |
| retvar->var_val.var_number = n1; |
| } |
| } |
| |
| return OK; |
| } |
| |
| /* |
| * Handle sixth level expression: |
| * number number constant |
| * "string" string contstant |
| * 'string' literal string contstant |
| * &option-name option value |
| * @r register contents |
| * identifier variable value |
| * function() function call |
| * $VAR environment variable |
| * (expression) nested expression |
| * |
| * Also handle: |
| * ! in front logical NOT |
| * - in front unary minus |
| * + in front unary plus (ignored) |
| * trailing [] subscript in String |
| * |
| * "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, retvar, evaluate) |
| char_u **arg; |
| VAR retvar; |
| int evaluate; |
| { |
| var var2; |
| long n; |
| int len; |
| char_u *s; |
| int val; |
| char_u *start_leader, *end_leader; |
| int ret = OK; |
| char_u *alias; |
| |
| /* |
| * Initialise variable so that clear_var() can't mistake this for a string |
| * and free a string that isn't there. |
| */ |
| retvar->var_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': |
| vim_str2nr(*arg, NULL, &len, TRUE, TRUE, &n, NULL); |
| *arg += len; |
| if (evaluate) |
| { |
| retvar->var_type = VAR_NUMBER; |
| retvar->var_val.var_number = n; |
| } |
| break; |
| |
| /* |
| * String constant: "string". |
| */ |
| case '"': ret = get_string_var(arg, retvar, evaluate); |
| break; |
| |
| /* |
| * Literal string constant: 'string'. |
| */ |
| case '\'': ret = get_lit_string_var(arg, retvar, evaluate); |
| break; |
| |
| /* |
| * Option value: &name |
| */ |
| case '&': ret = get_option_var(arg, retvar, evaluate); |
| break; |
| |
| /* |
| * Environment variable: $VAR. |
| */ |
| case '$': ret = get_env_var(arg, retvar, evaluate); |
| break; |
| |
| /* |
| * Register contents: @r. |
| */ |
| case '@': ++*arg; |
| if (evaluate) |
| { |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = get_reg_contents(**arg, FALSE); |
| } |
| if (**arg != NUL) |
| ++*arg; |
| break; |
| |
| /* |
| * nested expression: (expression). |
| */ |
| case '(': *arg = skipwhite(*arg + 1); |
| ret = eval1(arg, retvar, evaluate); /* recursive! */ |
| if (**arg == ')') |
| ++*arg; |
| else if (ret == OK) |
| { |
| EMSG(_("E110: Missing ')'")); |
| clear_var(retvar); |
| ret = FAIL; |
| } |
| break; |
| |
| /* |
| * Must be a variable or function name then. |
| */ |
| default: s = *arg; |
| len = get_func_len(arg, &alias, evaluate); |
| if (alias != NULL) |
| s = alias; |
| |
| if (len == 0) |
| ret = FAIL; |
| else |
| { |
| if (**arg == '(') /* recursive! */ |
| { |
| ret = get_func_var(s, len, retvar, arg, |
| curwin->w_cursor.lnum, curwin->w_cursor.lnum, |
| &len, evaluate); |
| /* 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_var(retvar); |
| ret = FAIL; |
| } |
| } |
| else if (evaluate) |
| ret = get_var_var(s, len, retvar); |
| } |
| |
| if (alias != NULL) |
| vim_free(alias); |
| |
| break; |
| } |
| *arg = skipwhite(*arg); |
| |
| /* |
| * Handle expr[expr] subscript. |
| */ |
| if (**arg == '[' && ret == OK) |
| { |
| /* |
| * Get the variable from inside the []. |
| */ |
| *arg = skipwhite(*arg + 1); |
| if (eval1(arg, &var2, evaluate) == FAIL) /* recursive! */ |
| { |
| clear_var(retvar); |
| return FAIL; |
| } |
| |
| /* Check for the ']'. */ |
| if (**arg != ']') |
| { |
| EMSG(_("E111: Missing ']'")); |
| clear_var(retvar); |
| clear_var(&var2); |
| return FAIL; |
| } |
| |
| if (evaluate) |
| { |
| n = get_var_number(&var2); |
| clear_var(&var2); |
| |
| /* |
| * The resulting variable is a string of a single character. |
| * If the index is too big or negative, the result is empty. |
| */ |
| s = get_var_string(retvar); |
| if (n >= (long)STRLEN(s) || n < 0) |
| s = NULL; |
| else |
| s = vim_strnsave(s + n, 1); |
| clear_var(retvar); |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = s; |
| } |
| *arg = skipwhite(*arg + 1); /* skip the ']' */ |
| } |
| |
| /* |
| * Apply logical NOT and unary '-', from right to left, ignore '+'. |
| */ |
| if (ret == OK && evaluate && end_leader > start_leader) |
| { |
| val = get_var_number(retvar); |
| while (end_leader > start_leader) |
| { |
| --end_leader; |
| if (*end_leader == '!') |
| val = !val; |
| else if (*end_leader == '-') |
| val = -val; |
| } |
| clear_var(retvar); |
| retvar->var_type = VAR_NUMBER; |
| retvar->var_val.var_number = val; |
| } |
| |
| return ret; |
| } |
| |
| /* |
| * 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_var(arg, retvar, evaluate) |
| char_u **arg; |
| VAR retvar; /* 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 (retvar != 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, |
| retvar == NULL ? NULL : &stringval, opt_flags); |
| |
| if (opt_type == -3) /* invalid name */ |
| { |
| if (retvar != NULL) |
| EMSG2(_("E113: Unknown option: %s"), *arg); |
| ret = FAIL; |
| } |
| else if (retvar != NULL) |
| { |
| if (opt_type == -2) /* hidden string option */ |
| { |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = NULL; |
| } |
| else if (opt_type == -1) /* hidden number option */ |
| { |
| retvar->var_type = VAR_NUMBER; |
| retvar->var_val.var_number = 0; |
| } |
| else if (opt_type == 1) /* number option */ |
| { |
| retvar->var_type = VAR_NUMBER; |
| retvar->var_val.var_number = numval; |
| } |
| else /* string option */ |
| { |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_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_var(arg, retvar, evaluate) |
| char_u **arg; |
| VAR retvar; |
| int evaluate; |
| { |
| char_u *p; |
| char_u *name; |
| int i; |
| int extra = 0; |
| |
| /* |
| * Find the end of the string, skipping backslashed characters. |
| */ |
| for (p = *arg + 1; *p && *p != '"'; ++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; |
| } |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| p += (*mb_ptr2len_check)(p) - 1; |
| #endif |
| } |
| |
| 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; |
| |
| i = 0; |
| for (p = *arg + 1; *p && *p != '"'; ++p) |
| { |
| if (*p == '\\') |
| { |
| switch (*++p) |
| { |
| case 'b': name[i++] = BS; break; |
| case 'e': name[i++] = ESC; break; |
| case 'f': name[i++] = FF; break; |
| case 'n': name[i++] = NL; break; |
| case 'r': name[i++] = CAR; break; |
| case 't': name[i++] = TAB; 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 |
| n = 4; |
| nr = 0; |
| while (--n >= 0 && vim_isxdigit(p[1])) |
| { |
| ++p; |
| nr = (nr << 4) + hex2nr(*p); |
| } |
| #ifdef FEAT_MBYTE |
| /* For "\u" store the number according to |
| * 'encoding'. */ |
| if (c != 'X') |
| i += (*mb_char2bytes)(nr, name + i); |
| else |
| #endif |
| name[i++] = nr; |
| } |
| else |
| name[i++] = *p; |
| break; |
| |
| /* octal: "\1", "\12", "\123" */ |
| case '0': |
| case '1': |
| case '2': |
| case '3': |
| case '4': |
| case '5': |
| case '6': |
| case '7': name[i] = *p - '0'; |
| if (p[1] >= '0' && p[1] <= '7') |
| { |
| ++p; |
| name[i] = (name[i] << 3) + *p - '0'; |
| if (p[1] >= '0' && p[1] <= '7') |
| { |
| ++p; |
| name[i] = (name[i] << 3) + *p - '0'; |
| } |
| } |
| ++i; |
| break; |
| |
| /* Special key, e.g.: "\<C-W>" */ |
| case '<': extra = trans_special(&p, name + i, TRUE); |
| if (extra != 0) |
| { |
| i += extra; |
| --p; |
| break; |
| } |
| /* FALLTHROUGH */ |
| |
| default: name[i++] = *p; |
| break; |
| } |
| } |
| else |
| name[i++] = *p; |
| |
| #ifdef FEAT_MBYTE |
| /* For a multi-byte character copy the bytes after the first one. */ |
| if (has_mbyte) |
| { |
| int l = (*mb_ptr2len_check)(p); |
| |
| while (--l > 0) |
| name[i++] = *++p; |
| } |
| #endif |
| } |
| name[i] = NUL; |
| *arg = p + 1; |
| |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = name; |
| |
| return OK; |
| } |
| |
| /* |
| * Allocate a variable for an backtick-string constant. |
| * Return OK or FAIL. |
| */ |
| static int |
| get_lit_string_var(arg, retvar, evaluate) |
| char_u **arg; |
| VAR retvar; |
| int evaluate; |
| { |
| char_u *p; |
| char_u *name; |
| |
| /* |
| * Find the end of the string. |
| */ |
| p = vim_strchr(*arg + 1, '\''); |
| if (p == NULL) |
| { |
| EMSG2(_("E115: Missing quote: %s"), *arg); |
| return FAIL; |
| } |
| |
| if (evaluate) |
| { |
| /* |
| * Copy the string into allocated memory. |
| */ |
| name = vim_strnsave(*arg + 1, (int)(p - (*arg + 1))); |
| if (name == NULL) |
| return FAIL; |
| |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = name; |
| } |
| |
| *arg = p + 1; |
| |
| return OK; |
| } |
| |
| /* |
| * 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. |
| * Always return OK. |
| */ |
| static int |
| get_env_var(arg, retvar, evaluate) |
| char_u **arg; |
| VAR retvar; |
| int evaluate; |
| { |
| char_u *string = NULL; |
| int len; |
| int cc; |
| char_u *name; |
| |
| ++*arg; |
| name = *arg; |
| len = get_env_len(arg); |
| if (evaluate) |
| { |
| if (len != 0) |
| { |
| cc = name[len]; |
| name[len] = NUL; |
| /* first try mch_getenv(), fast for normal environment vars */ |
| string = mch_getenv(name); |
| if (string != NULL && *string != NUL) |
| string = vim_strsave(string); |
| else |
| { |
| /* 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; |
| } |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_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((VAR args, VAR rvar)); /* impl. function */ |
| } functions[] = |
| { |
| {"append", 2, 2, f_append}, |
| {"argc", 0, 0, f_argc}, |
| {"argidx", 0, 0, f_argidx}, |
| {"argv", 1, 1, f_argv}, |
| {"browse", 4, 4, f_browse}, |
| {"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, 1, f_bufnr}, |
| {"bufwinnr", 1, 1, f_bufwinnr}, |
| {"byte2line", 1, 1, f_byte2line}, |
| {"char2nr", 1, 1, f_char2nr}, |
| {"cindent", 1, 1, f_cindent}, |
| {"col", 1, 1, f_col}, |
| {"confirm", 1, 4, f_confirm}, |
| {"cscope_connection",0,3, f_cscope_connection}, |
| {"cursor", 2, 2, f_cursor}, |
| {"delete", 1, 1, f_delete}, |
| {"did_filetype", 0, 0, f_did_filetype}, |
| {"escape", 2, 2, f_escape}, |
| {"eventhandler", 0, 0, f_eventhandler}, |
| {"executable", 1, 1, f_executable}, |
| {"exists", 1, 1, f_exists}, |
| {"expand", 1, 2, f_expand}, |
| {"file_readable", 1, 1, f_filereadable}, /* obsolete */ |
| {"filereadable", 1, 1, f_filereadable}, |
| {"filewritable", 1, 1, f_filewritable}, |
| {"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}, |
| {"foreground", 0, 0, f_foreground}, |
| {"getbufvar", 2, 2, f_getbufvar}, |
| {"getchar", 0, 1, f_getchar}, |
| {"getcharmod", 0, 0, f_getcharmod}, |
| {"getcmdline", 0, 0, f_getcmdline}, |
| {"getcmdpos", 0, 0, f_getcmdpos}, |
| {"getcwd", 0, 0, f_getcwd}, |
| {"getfsize", 1, 1, f_getfsize}, |
| {"getftime", 1, 1, f_getftime}, |
| {"getline", 1, 1, f_getline}, |
| {"getreg", 0, 1, f_getreg}, |
| {"getregtype", 0, 1, f_getregtype}, |
| {"getwinposx", 0, 0, f_getwinposx}, |
| {"getwinposy", 0, 0, f_getwinposy}, |
| {"getwinvar", 2, 2, f_getwinvar}, |
| {"glob", 1, 1, f_glob}, |
| {"globpath", 2, 2, f_globpath}, |
| {"has", 1, 1, f_has}, |
| {"hasmapto", 1, 2, 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}, |
| {"input", 1, 2, f_input}, |
| {"inputdialog", 1, 3, f_inputdialog}, |
| {"inputrestore", 0, 0, f_inputrestore}, |
| {"inputsave", 0, 0, f_inputsave}, |
| {"inputsecret", 1, 2, f_inputsecret}, |
| {"isdirectory", 1, 1, f_isdirectory}, |
| {"last_buffer_nr", 0, 0, f_last_buffer_nr},/* obsolete */ |
| {"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}, |
| {"maparg", 1, 2, f_maparg}, |
| {"mapcheck", 1, 2, f_mapcheck}, |
| {"match", 2, 3, f_match}, |
| {"matchend", 2, 3, f_matchend}, |
| {"matchstr", 2, 3, f_matchstr}, |
| {"mode", 0, 0, f_mode}, |
| {"nextnonblank", 1, 1, f_nextnonblank}, |
| {"nr2char", 1, 1, f_nr2char}, |
| {"prevnonblank", 1, 1, f_prevnonblank}, |
| {"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}, |
| {"rename", 2, 2, f_rename}, |
| {"resolve", 1, 1, f_resolve}, |
| {"search", 1, 2, f_search}, |
| {"searchpair", 3, 5, f_searchpair}, |
| {"server2client", 2, 2, f_server2client}, |
| {"serverlist", 0, 0, f_serverlist}, |
| {"setbufvar", 3, 3, f_setbufvar}, |
| {"setcmdpos", 1, 1, f_setcmdpos}, |
| {"setline", 2, 2, f_setline}, |
| {"setreg", 2, 3, f_setreg}, |
| {"setwinvar", 3, 3, f_setwinvar}, |
| {"simplify", 1, 1, f_simplify}, |
| #ifdef HAVE_STRFTIME |
| {"strftime", 1, 2, f_strftime}, |
| #endif |
| {"stridx", 2, 2, f_stridx}, |
| {"strlen", 1, 1, f_strlen}, |
| {"strpart", 2, 3, f_strpart}, |
| {"strridx", 2, 2, f_strridx}, |
| {"strtrans", 1, 1, f_strtrans}, |
| {"submatch", 1, 1, f_submatch}, |
| {"substitute", 4, 4, f_substitute}, |
| {"synID", 3, 3, f_synID}, |
| {"synIDattr", 2, 3, f_synIDattr}, |
| {"synIDtrans", 1, 1, f_synIDtrans}, |
| {"system", 1, 1, f_system}, |
| {"tempname", 0, 0, f_tempname}, |
| {"tolower", 1, 1, f_tolower}, |
| {"toupper", 1, 1, f_toupper}, |
| {"tr", 3, 3, f_tr}, |
| {"type", 1, 1, f_type}, |
| {"virtcol", 1, 1, f_virtcol}, |
| {"visualmode", 0, 1, f_visualmode}, |
| {"winbufnr", 1, 1, f_winbufnr}, |
| {"wincol", 0, 0, f_wincol}, |
| {"winheight", 1, 1, f_winheight}, |
| {"winline", 0, 0, f_winline}, |
| {"winnr", 0, 0, f_winnr}, |
| {"winrestcmd", 0, 0, f_winrestcmd}, |
| {"winwidth", 1, 1, f_winwidth}, |
| }; |
| |
| #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. |
| */ |
| /*ARGSUSED*/ |
| 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 */ |
| |
| /* |
| * 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; |
| } |
| |
| /* |
| * Allocate a variable for the result of a function. |
| * Return OK or FAIL. |
| */ |
| static int |
| get_func_var(name, len, retvar, arg, firstline, lastline, doesrange, evaluate) |
| char_u *name; /* name of the function */ |
| int len; /* length of "name" */ |
| VAR retvar; |
| 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; |
| { |
| char_u *argp; |
| int ret = OK; |
| #define MAX_FUNC_ARGS 20 |
| var argvars[MAX_FUNC_ARGS]; /* 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; |
| argvars[argcount].var_name = NULL; /* the name is not stored */ |
| 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, retvar, argcount, argvars, |
| firstline, lastline, doesrange, evaluate); |
| else if (!aborting()) |
| EMSG2(_("E116: Invalid arguments for function %s"), name); |
| |
| while (--argcount >= 0) |
| clear_var(&argvars[argcount]); |
| |
| *arg = skipwhite(argp); |
| return ret; |
| } |
| |
| |
| /* |
| * Call a function with its resolved parameters |
| * Return OK or FAIL. |
| */ |
| static int |
| call_func(name, len, retvar, argcount, argvars, firstline, lastline, |
| doesrange, evaluate) |
| char_u *name; /* name of the function */ |
| int len; /* length of "name" */ |
| VAR retvar; /* return value goes here */ |
| int argcount; /* number of "argvars" */ |
| VAR argvars; /* vars for arguments */ |
| linenr_T firstline; /* first line of range */ |
| linenr_T lastline; /* last line of range */ |
| int *doesrange; /* return: function handled range */ |
| int evaluate; |
| { |
| int ret = FAIL; |
| static char *errors[] = |
| {N_("E117: Unknown function: %s"), |
| N_("E118: Too many arguments for function: %s"), |
| N_("E119: Not enough arguments for function: %s"), |
| N_("E120: Using <SID> not in a script context: %s"), |
| }; |
| #define ERROR_UNKNOWN 0 |
| #define ERROR_TOOMANY 1 |
| #define ERROR_TOOFEW 2 |
| #define ERROR_SCRIPT 3 |
| #define ERROR_NONE 4 |
| #define ERROR_OTHER 5 |
| int error = ERROR_NONE; |
| int i; |
| int llen; |
| ufunc_T *fp; |
| int cc; |
| #define FLEN_FIXED 40 |
| char_u fname_buf[FLEN_FIXED + 1]; |
| char_u *fname; |
| |
| /* |
| * 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). |
| */ |
| cc = name[len]; |
| name[len] = NUL; |
| 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) |
| { |
| retvar->var_type = VAR_NUMBER; /* default is number retvar */ |
| error = ERROR_UNKNOWN; |
| |
| if (!ASCII_ISLOWER(fname[0])) |
| { |
| /* |
| * User defined function. |
| */ |
| fp = find_func(fname); |
| #ifdef FEAT_AUTOCMD |
| if (fp == NULL && apply_autocmds(EVENT_FUNCUNDEFINED, |
| fname, fname, TRUE, NULL) |
| #ifdef FEAT_EVAL |
| && !aborting() |
| #endif |
| ) |
| { |
| /* executed an autocommand, search for function again */ |
| fp = find_func(fname); |
| } |
| #endif |
| if (fp != NULL) |
| { |
| if (fp->flags & FC_RANGE) |
| *doesrange = TRUE; |
| if (argcount < fp->args.ga_len) |
| error = ERROR_TOOFEW; |
| else if (!fp->varargs && argcount > fp->args.ga_len) |
| error = ERROR_TOOMANY; |
| else |
| { |
| /* |
| * Call the user function. |
| * Save and restore search patterns, script variables and |
| * redo buffer. |
| */ |
| save_search_patterns(); |
| saveRedobuff(); |
| ++fp->calls; |
| call_user_func(fp, argcount, argvars, retvar, |
| firstline, lastline); |
| --fp->calls; |
| 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].var_type = VAR_UNKNOWN; |
| functions[i].f_func(argvars, retvar); |
| 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 (error < ERROR_NONE && !aborting()) |
| EMSG2((char_u *)_(errors[error]), name); |
| |
| name[len] = cc; |
| if (fname != name && fname != fname_buf) |
| vim_free(fname); |
| |
| return ret; |
| } |
| |
| /********************************************* |
| * Implementation of the built-in functions |
| */ |
| |
| /* |
| * "append(lnum, string)" function |
| */ |
| static void |
| f_append(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| long lnum; |
| |
| lnum = get_var_lnum(argvars); |
| retvar->var_val.var_number = 1; /* Default: Failed */ |
| |
| if (lnum >= 0 |
| && lnum <= curbuf->b_ml.ml_line_count |
| && u_save(lnum, lnum + 1) == OK) |
| { |
| ml_append(lnum, get_var_string(&argvars[1]), (colnr_T)0, FALSE); |
| if (curwin->w_cursor.lnum > lnum) |
| ++curwin->w_cursor.lnum; |
| appended_lines_mark(lnum, 1L); |
| retvar->var_val.var_number = 0; |
| } |
| } |
| |
| /* |
| * "argc()" function |
| */ |
| /* ARGSUSED */ |
| static void |
| f_argc(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = ARGCOUNT; |
| } |
| |
| /* |
| * "argidx()" function |
| */ |
| /* ARGSUSED */ |
| static void |
| f_argidx(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = curwin->w_arg_idx; |
| } |
| |
| /* |
| * "argv(nr)" function |
| */ |
| static void |
| f_argv(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| int idx; |
| |
| idx = get_var_number(&argvars[0]); |
| if (idx >= 0 && idx < ARGCOUNT) |
| retvar->var_val.var_string = vim_strsave(alist_name(&ARGLIST[idx])); |
| else |
| retvar->var_val.var_string = NULL; |
| retvar->var_type = VAR_STRING; |
| } |
| |
| /* |
| * "browse(save, title, initdir, default)" function |
| */ |
| /* ARGSUSED */ |
| static void |
| f_browse(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_BROWSE |
| int save; |
| char_u *title; |
| char_u *initdir; |
| char_u *defname; |
| char_u buf[NUMBUFLEN]; |
| char_u buf2[NUMBUFLEN]; |
| |
| save = get_var_number(&argvars[0]); |
| title = get_var_string(&argvars[1]); |
| initdir = get_var_string_buf(&argvars[2], buf); |
| defname = get_var_string_buf(&argvars[3], buf2); |
| |
| retvar->var_val.var_string = |
| do_browse(save, title, defname, NULL, initdir, NULL, curbuf); |
| #else |
| retvar->var_val.var_string = NULL; |
| #endif |
| retvar->var_type = VAR_STRING; |
| } |
| |
| /* |
| * Find a buffer by number or exact name. |
| */ |
| static buf_T * |
| find_buffer(avar) |
| VAR avar; |
| { |
| buf_T *buf = NULL; |
| char_u *name; |
| |
| if (avar->var_type == VAR_NUMBER) |
| buf = buflist_findnr((int)avar->var_val.var_number); |
| else if (avar->var_val.var_string != NULL) |
| { |
| /* First make the name into a full path name */ |
| name = FullName_save(avar->var_val.var_string, |
| #ifdef UNIX |
| TRUE /* force expansion, get rid of symbolic links */ |
| #else |
| FALSE |
| #endif |
| ); |
| if (name != NULL) |
| { |
| buf = buflist_findname(name); |
| vim_free(name); |
| } |
| 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->var_val.var_string) == 0) |
| break; |
| } |
| } |
| return buf; |
| } |
| |
| /* |
| * "bufexists(expr)" function |
| */ |
| static void |
| f_bufexists(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = (find_buffer(&argvars[0]) != NULL); |
| } |
| |
| /* |
| * "buflisted(expr)" function |
| */ |
| static void |
| f_buflisted(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| buf_T *buf; |
| |
| buf = find_buffer(&argvars[0]); |
| retvar->var_val.var_number = (buf != NULL && buf->b_p_bl); |
| } |
| |
| /* |
| * "bufloaded(expr)" function |
| */ |
| static void |
| f_bufloaded(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| buf_T *buf; |
| |
| buf = find_buffer(&argvars[0]); |
| retvar->var_val.var_number = (buf != NULL && buf->b_ml.ml_mfp != NULL); |
| } |
| |
| /* |
| * Get buffer by number or pattern. |
| */ |
| static buf_T * |
| get_buf_var(avar) |
| VAR avar; |
| { |
| char_u *name = avar->var_val.var_string; |
| int save_magic; |
| char_u *save_cpo; |
| buf_T *buf; |
| |
| if (avar->var_type == VAR_NUMBER) |
| return buflist_findnr((int)avar->var_val.var_number); |
| 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)); |
| |
| 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(avar); |
| |
| return buf; |
| } |
| |
| /* |
| * "bufname(expr)" function |
| */ |
| static void |
| f_bufname(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| buf_T *buf; |
| |
| ++emsg_off; |
| buf = get_buf_var(&argvars[0]); |
| retvar->var_type = VAR_STRING; |
| if (buf != NULL && buf->b_fname != NULL) |
| retvar->var_val.var_string = vim_strsave(buf->b_fname); |
| else |
| retvar->var_val.var_string = NULL; |
| --emsg_off; |
| } |
| |
| /* |
| * "bufnr(expr)" function |
| */ |
| static void |
| f_bufnr(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| buf_T *buf; |
| |
| ++emsg_off; |
| buf = get_buf_var(&argvars[0]); |
| if (buf != NULL) |
| retvar->var_val.var_number = buf->b_fnum; |
| else |
| retvar->var_val.var_number = -1; |
| --emsg_off; |
| } |
| |
| /* |
| * "bufwinnr(nr)" function |
| */ |
| static void |
| f_bufwinnr(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_WINDOWS |
| win_T *wp; |
| int winnr = 0; |
| #endif |
| buf_T *buf; |
| |
| ++emsg_off; |
| buf = get_buf_var(&argvars[0]); |
| #ifdef FEAT_WINDOWS |
| for (wp = firstwin; wp; wp = wp->w_next) |
| { |
| ++winnr; |
| if (wp->w_buffer == buf) |
| break; |
| } |
| retvar->var_val.var_number = (wp != NULL ? winnr : -1); |
| #else |
| retvar->var_val.var_number = (curwin->w_buffer == buf ? 1 : -1); |
| #endif |
| --emsg_off; |
| } |
| |
| /* |
| * "byte2line(byte)" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_byte2line(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifndef FEAT_BYTEOFF |
| retvar->var_val.var_number = -1; |
| #else |
| long boff = 0; |
| |
| boff = get_var_number(&argvars[0]) - 1; |
| if (boff < 0) |
| retvar->var_val.var_number = -1; |
| else |
| retvar->var_val.var_number = ml_find_line_or_offset(curbuf, |
| (linenr_T)0, &boff); |
| #endif |
| } |
| |
| /* |
| * "char2nr(string)" function |
| */ |
| static void |
| f_char2nr(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| retvar->var_val.var_number = |
| (*mb_ptr2char)(get_var_string(&argvars[0])); |
| else |
| #endif |
| retvar->var_val.var_number = get_var_string(&argvars[0])[0]; |
| } |
| |
| /* |
| * "cindent(lnum)" function |
| */ |
| static void |
| f_cindent(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_CINDENT |
| pos_T pos; |
| linenr_T lnum; |
| |
| pos = curwin->w_cursor; |
| lnum = get_var_lnum(argvars); |
| if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) |
| { |
| curwin->w_cursor.lnum = lnum; |
| retvar->var_val.var_number = get_c_indent(); |
| curwin->w_cursor = pos; |
| } |
| else |
| #endif |
| retvar->var_val.var_number = -1; |
| } |
| |
| /* |
| * "col(string)" function |
| */ |
| static void |
| f_col(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| colnr_T col = 0; |
| pos_T *fp; |
| |
| fp = var2fpos(&argvars[0], FALSE); |
| if (fp != NULL) |
| { |
| if (fp->col == MAXCOL) |
| { |
| /* '> can be MAXCOL, get the length of the line then */ |
| if (fp->lnum <= curbuf->b_ml.ml_line_count) |
| col = 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_check)(p))] == NUL) |
| col += l; |
| # else |
| if (*p != NUL && p[1] == NUL) |
| ++col; |
| # endif |
| } |
| } |
| #endif |
| } |
| } |
| retvar->var_val.var_number = col; |
| } |
| |
| /* |
| * "confirm(message, buttons[, default [, type]])" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_confirm(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #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; |
| int c; |
| |
| message = get_var_string(&argvars[0]); |
| if (argvars[1].var_type != VAR_UNKNOWN) |
| { |
| buttons = get_var_string_buf(&argvars[1], buf); |
| if (argvars[2].var_type != VAR_UNKNOWN) |
| { |
| def = get_var_number(&argvars[2]); |
| if (argvars[3].var_type != VAR_UNKNOWN) |
| { |
| /* avoid that TOUPPER_ASC calls get_var_string_buf() twice */ |
| c = *get_var_string_buf(&argvars[3], buf2); |
| switch (TOUPPER_ASC(c)) |
| { |
| 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"); |
| |
| retvar->var_val.var_number = do_dialog(type, NULL, message, buttons, |
| def, NULL); |
| #else |
| retvar->var_val.var_number = 0; |
| #endif |
| } |
| |
| |
| /* |
| * "cscope_connection([{num} , {dbpath} [, {prepend}]])" function |
| * |
| * Checks the existence of a cscope connection. |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_cscope_connection(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_CSCOPE |
| int num = 0; |
| char_u *dbpath = NULL; |
| char_u *prepend = NULL; |
| char_u buf[NUMBUFLEN]; |
| |
| if (argvars[0].var_type != VAR_UNKNOWN |
| && argvars[1].var_type != VAR_UNKNOWN) |
| { |
| num = (int)get_var_number(&argvars[0]); |
| dbpath = get_var_string(&argvars[1]); |
| if (argvars[2].var_type != VAR_UNKNOWN) |
| prepend = get_var_string_buf(&argvars[2], buf); |
| } |
| |
| retvar->var_val.var_number = cs_connection(num, dbpath, prepend); |
| #else |
| retvar->var_val.var_number = 0; |
| #endif |
| } |
| |
| /* |
| * "cursor(lnum, col)" function |
| * |
| * Moves the cursor to the specified line and column |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_cursor(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| long line, col; |
| |
| line = get_var_lnum(argvars); |
| if (line > 0) |
| curwin->w_cursor.lnum = line; |
| col = get_var_number(&argvars[1]); |
| if (col > 0) |
| curwin->w_cursor.col = col - 1; |
| #ifdef FEAT_VIRTUALEDIT |
| curwin->w_cursor.coladd = 0; |
| #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 = TRUE; |
| } |
| |
| /* |
| * "libcall()" function |
| */ |
| static void |
| f_libcall(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| libcall_common(argvars, retvar, VAR_STRING); |
| } |
| |
| /* |
| * "libcallnr()" function |
| */ |
| static void |
| f_libcallnr(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| libcall_common(argvars, retvar, VAR_NUMBER); |
| } |
| |
| static void |
| libcall_common(argvars, retvar, type) |
| VAR argvars; |
| VAR retvar; |
| int type; |
| { |
| #ifdef FEAT_LIBCALL |
| char_u *string_in; |
| char_u **string_result; |
| int nr_result; |
| #endif |
| |
| retvar->var_type = type; |
| if (type == VAR_NUMBER) |
| retvar->var_val.var_number = 0; |
| else |
| retvar->var_val.var_string = NULL; |
| |
| if (check_restricted() || check_secure()) |
| return; |
| |
| #ifdef FEAT_LIBCALL |
| /* The first two args must be strings, otherwise its meaningless */ |
| if (argvars[0].var_type == VAR_STRING && argvars[1].var_type == VAR_STRING) |
| { |
| if (argvars[2].var_type == VAR_NUMBER) |
| string_in = NULL; |
| else |
| string_in = argvars[2].var_val.var_string; |
| if (type == VAR_NUMBER) |
| string_result = NULL; |
| else |
| string_result = &retvar->var_val.var_string; |
| if (mch_libcall(argvars[0].var_val.var_string, |
| argvars[1].var_val.var_string, |
| string_in, |
| argvars[2].var_val.var_number, |
| string_result, |
| &nr_result) == OK |
| && type == VAR_NUMBER) |
| retvar->var_val.var_number = nr_result; |
| } |
| #endif |
| } |
| |
| /* |
| * "delete()" function |
| */ |
| static void |
| f_delete(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| if (check_restricted() || check_secure()) |
| retvar->var_val.var_number = -1; |
| else |
| retvar->var_val.var_number = mch_remove(get_var_string(&argvars[0])); |
| } |
| |
| /* |
| * "did_filetype()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_did_filetype(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_AUTOCMD |
| retvar->var_val.var_number = did_filetype; |
| #else |
| retvar->var_val.var_number = 0; |
| #endif |
| } |
| |
| /* |
| * "escape({string}, {chars})" function |
| */ |
| static void |
| f_escape(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u buf[NUMBUFLEN]; |
| |
| retvar->var_val.var_string = |
| vim_strsave_escaped(get_var_string(&argvars[0]), |
| get_var_string_buf(&argvars[1], buf)); |
| retvar->var_type = VAR_STRING; |
| } |
| |
| /* |
| * "eventhandler()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_eventhandler(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = vgetc_busy; |
| } |
| |
| /* |
| * "executable()" function |
| */ |
| static void |
| f_executable(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = mch_can_exe(get_var_string(&argvars[0])); |
| } |
| |
| /* |
| * "exists()" function |
| */ |
| static void |
| f_exists(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *p; |
| char_u *name; |
| int n = FALSE; |
| int len = 0; |
| |
| p = get_var_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_var(&p, NULL, TRUE) == OK); |
| else if (*p == '*') /* internal or user defined function */ |
| { |
| ++p; |
| p = trans_function_name(&p, FALSE, TRUE); |
| if (p != NULL) |
| { |
| if (ASCII_ISUPPER(*p) || p[0] == K_SPECIAL) |
| n = (find_func(p) != NULL); |
| else if (ASCII_ISLOWER(*p)) |
| n = (find_internal_func(p) >= 0); |
| vim_free(p); |
| } |
| } |
| else if (*p == ':') |
| { |
| n = cmd_exists(p + 1); |
| } |
| else if (*p == '#') |
| { |
| #ifdef FEAT_AUTOCMD |
| name = p + 1; |
| p = vim_strchr(name, '#'); |
| if (p != NULL) |
| n = au_exists(name, p, p + 1); |
| else |
| n = au_exists(name, name + STRLEN(name), NULL); |
| #endif |
| } |
| else /* internal variable */ |
| { |
| #ifdef FEAT_MAGIC_BRACES |
| char_u *expr_start; |
| char_u *expr_end; |
| char_u *temp_string = NULL; |
| char_u *s; |
| #endif |
| name = p; |
| |
| #ifdef FEAT_MAGIC_BRACES |
| /* Find the end of the name. */ |
| s = find_name_end(name, &expr_start, &expr_end); |
| if (expr_start != NULL) |
| { |
| temp_string = make_expanded_name(name, expr_start, expr_end, s); |
| if (temp_string != NULL) |
| { |
| len = STRLEN(temp_string); |
| name = temp_string; |
| } |
| } |
| #endif |
| if (len == 0) |
| len = get_id_len(&p); |
| if (len != 0) |
| n = (get_var_var(name, len, NULL) == OK); |
| |
| #ifdef FEAT_MAGIC_BRACES |
| vim_free(temp_string); |
| #endif |
| } |
| |
| retvar->var_val.var_number = n; |
| } |
| |
| /* |
| * "expand()" function |
| */ |
| static void |
| f_expand(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *s; |
| int len; |
| char_u *errormsg; |
| int flags = WILD_SILENT|WILD_USE_NL|WILD_LIST_NOTFOUND; |
| expand_T xpc; |
| |
| retvar->var_type = VAR_STRING; |
| s = get_var_string(&argvars[0]); |
| if (*s == '%' || *s == '#' || *s == '<') |
| { |
| ++emsg_off; |
| retvar->var_val.var_string = eval_vars(s, &len, NULL, &errormsg, s); |
| --emsg_off; |
| } |
| else |
| { |
| /* When the optional second argument is non-zero, don't remove matches |
| * for 'suffixes' and 'wildignore' */ |
| if (argvars[1].var_type != VAR_UNKNOWN && get_var_number(&argvars[1])) |
| flags |= WILD_KEEP_ALL; |
| ExpandInit(&xpc); |
| xpc.xp_context = EXPAND_FILES; |
| retvar->var_val.var_string = ExpandOne(&xpc, s, NULL, flags, WILD_ALL); |
| ExpandCleanup(&xpc); |
| } |
| } |
| |
| /* |
| * "filereadable()" function |
| */ |
| static void |
| f_filereadable(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| FILE *fd; |
| char_u *p; |
| int n; |
| |
| p = get_var_string(&argvars[0]); |
| if (*p && !mch_isdir(p) && (fd = mch_fopen((char *)p, "r")) != NULL) |
| { |
| n = TRUE; |
| fclose(fd); |
| } |
| else |
| n = FALSE; |
| |
| retvar->var_val.var_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, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *p; |
| int retval = 0; |
| #if defined(UNIX) || defined(VMS) |
| int perm = 0; |
| #endif |
| |
| p = get_var_string(&argvars[0]); |
| #if defined(UNIX) || defined(VMS) |
| perm = mch_getperm(p); |
| #endif |
| #ifndef MACOS_CLASSIC /* TODO: get either mch_writable or mch_access */ |
| if ( |
| # ifdef WIN3264 |
| mch_writable(p) && |
| # else |
| # if defined(UNIX) || defined(VMS) |
| (perm & 0222) && |
| # endif |
| # endif |
| mch_access((char *)p, W_OK) == 0 |
| ) |
| #endif |
| { |
| ++retval; |
| if (mch_isdir(p)) |
| ++retval; |
| } |
| retvar->var_val.var_number = retval; |
| } |
| |
| /* |
| * "fnamemodify({fname}, {mods})" function |
| */ |
| static void |
| f_fnamemodify(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *fname; |
| char_u *mods; |
| int usedlen = 0; |
| int len; |
| char_u *fbuf = NULL; |
| char_u buf[NUMBUFLEN]; |
| |
| fname = get_var_string(&argvars[0]); |
| mods = get_var_string_buf(&argvars[1], buf); |
| len = (int)STRLEN(fname); |
| |
| (void)modify_fname(mods, &usedlen, &fname, &fbuf, &len); |
| |
| retvar->var_type = VAR_STRING; |
| if (fname == NULL) |
| retvar->var_val.var_string = NULL; |
| else |
| retvar->var_val.var_string = vim_strnsave(fname, len); |
| vim_free(fbuf); |
| } |
| |
| /* |
| * "foldclosed()" function |
| */ |
| static void |
| f_foldclosed(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| foldclosed_both(argvars, retvar, FALSE); |
| } |
| |
| /* |
| * "foldclosedend()" function |
| */ |
| static void |
| f_foldclosedend(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| foldclosed_both(argvars, retvar, TRUE); |
| } |
| |
| /* |
| * "foldclosed()" function |
| */ |
| static void |
| foldclosed_both(argvars, retvar, end) |
| VAR argvars; |
| VAR retvar; |
| int end; |
| { |
| #ifdef FEAT_FOLDING |
| linenr_T lnum; |
| linenr_T first, last; |
| |
| lnum = get_var_lnum(argvars); |
| if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) |
| { |
| if (hasFoldingWin(curwin, lnum, &first, &last, FALSE, NULL)) |
| { |
| if (end) |
| retvar->var_val.var_number = (varnumber_T)last; |
| else |
| retvar->var_val.var_number = (varnumber_T)first; |
| return; |
| } |
| } |
| #endif |
| retvar->var_val.var_number = -1; |
| } |
| |
| /* |
| * "foldlevel()" function |
| */ |
| static void |
| f_foldlevel(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_FOLDING |
| linenr_T lnum; |
| |
| lnum = get_var_lnum(argvars); |
| if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) |
| retvar->var_val.var_number = foldLevel(lnum); |
| else |
| #endif |
| retvar->var_val.var_number = 0; |
| } |
| |
| /* |
| * "foldtext()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_foldtext(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_FOLDING |
| linenr_T lnum; |
| char_u *s; |
| char_u *r; |
| int len; |
| char *txt; |
| #endif |
| |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = NULL; |
| #ifdef FEAT_FOLDING |
| if ((linenr_T)vimvars[VV_FOLDSTART].val > 0 |
| && (linenr_T)vimvars[VV_FOLDEND].val <= curbuf->b_ml.ml_line_count |
| && vimvars[VV_FOLDDASHES].val != NULL) |
| { |
| /* Find first non-empty line in the fold. */ |
| lnum = (linenr_T)vimvars[VV_FOLDSTART].val; |
| while (lnum < (linenr_T)vimvars[VV_FOLDEND].val) |
| { |
| 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); |
| txt = _("+-%s%3ld lines: "); |
| r = alloc((unsigned)(STRLEN(txt) |
| + STRLEN(vimvars[VV_FOLDDASHES].val) /* for %s */ |
| + 20 /* for %3ld */ |
| + STRLEN(s))); /* concatenated */ |
| if (r != NULL) |
| { |
| sprintf((char *)r, txt, vimvars[VV_FOLDDASHES].val, |
| (long)((linenr_T)vimvars[VV_FOLDEND].val |
| - (linenr_T)vimvars[VV_FOLDSTART].val + 1)); |
| len = (int)STRLEN(r); |
| STRCAT(r, s); |
| /* remove 'foldmarker' and 'commentstring' */ |
| foldtext_cleanup(r + len); |
| retvar->var_val.var_string = r; |
| } |
| } |
| #endif |
| } |
| |
| /* |
| * "foreground()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_foreground(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = 0; |
| #ifdef FEAT_GUI |
| if (gui.in_use) |
| gui_mch_set_foreground(); |
| #else |
| # ifdef WIN32 |
| win32_set_foreground(); |
| # endif |
| #endif |
| } |
| |
| /* |
| * "getchar()" function |
| */ |
| static void |
| f_getchar(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| varnumber_T n; |
| |
| ++no_mapping; |
| ++allow_keys; |
| if (argvars[0].var_type == VAR_UNKNOWN) |
| /* getchar(): blocking wait. */ |
| n = safe_vgetc(); |
| else if (get_var_number(&argvars[0]) == 1) |
| /* getchar(1): only check if char avail */ |
| n = vpeekc(); |
| else if (vpeekc() == NUL) |
| /* getchar(0) and no char avail: return zero */ |
| n = 0; |
| else |
| /* getchar(0) and char avail: return char */ |
| n = safe_vgetc(); |
| --no_mapping; |
| --allow_keys; |
| |
| retvar->var_val.var_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; |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = vim_strsave(temp); |
| } |
| } |
| |
| /* |
| * "getcharmod()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_getcharmod(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = mod_mask; |
| } |
| |
| /* |
| * "getcmdline()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_getcmdline(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = get_cmdline_str(); |
| } |
| |
| /* |
| * "getcmdpos()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_getcmdpos(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = get_cmdline_pos() + 1; |
| } |
| |
| /* |
| * "getbufvar()" function |
| */ |
| static void |
| f_getbufvar(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| buf_T *buf; |
| buf_T *save_curbuf; |
| char_u *varname; |
| VAR v; |
| |
| ++emsg_off; |
| buf = get_buf_var(&argvars[0]); |
| varname = get_var_string(&argvars[1]); |
| |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = NULL; |
| |
| if (buf != NULL && varname != NULL) |
| { |
| if (*varname == '&') /* buffer-local-option */ |
| { |
| /* set curbuf to be our buf, temporarily */ |
| save_curbuf = curbuf; |
| curbuf = buf; |
| |
| get_option_var(&varname, retvar, TRUE); |
| |
| /* restore previous notion of curbuf */ |
| curbuf = save_curbuf; |
| } |
| else |
| { |
| /* look up the variable */ |
| v = find_var_in_ga(&buf->b_vars, varname); |
| if (v != NULL) |
| copy_var(v, retvar); |
| } |
| } |
| |
| --emsg_off; |
| } |
| |
| /* |
| * "getcwd()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_getcwd(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u cwd[MAXPATHL]; |
| |
| retvar->var_type = VAR_STRING; |
| if (mch_dirname(cwd, MAXPATHL) == FAIL) |
| retvar->var_val.var_string = NULL; |
| else |
| { |
| retvar->var_val.var_string = vim_strsave(cwd); |
| #ifdef BACKSLASH_IN_FILENAME |
| slash_adjust(retvar->var_val.var_string); |
| #endif |
| } |
| } |
| |
| /* |
| * "getfsize({fname})" function |
| */ |
| static void |
| f_getfsize(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *fname; |
| struct stat st; |
| |
| fname = get_var_string(&argvars[0]); |
| |
| retvar->var_type = VAR_NUMBER; |
| |
| if (mch_stat((char *)fname, &st) >= 0) |
| { |
| if (mch_isdir(fname)) |
| retvar->var_val.var_number = 0; |
| else |
| retvar->var_val.var_number = (varnumber_T)st.st_size; |
| } |
| else |
| retvar->var_val.var_number = -1; |
| } |
| |
| /* |
| * "getftime({fname})" function |
| */ |
| static void |
| f_getftime(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *fname; |
| struct stat st; |
| |
| fname = get_var_string(&argvars[0]); |
| |
| if (mch_stat((char *)fname, &st) >= 0) |
| retvar->var_val.var_number = (varnumber_T)st.st_mtime; |
| else |
| retvar->var_val.var_number = -1; |
| } |
| |
| /* |
| * "getreg()" function |
| */ |
| static void |
| f_getreg(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *strregname; |
| int regname; |
| |
| if (argvars[0].var_type != VAR_UNKNOWN) |
| strregname = get_var_string(&argvars[0]); |
| else |
| strregname = vimvars[VV_REG].val; |
| regname = (strregname == NULL ? '"' : *strregname); |
| if (regname == 0) |
| regname = '"'; |
| |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = get_reg_contents(regname, TRUE); |
| } |
| |
| /* |
| * "getregtype()" function |
| */ |
| static void |
| f_getregtype(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *strregname; |
| int regname; |
| char_u buf[NUMBUFLEN + 2]; |
| long reglen = 0; |
| |
| if (argvars[0].var_type != VAR_UNKNOWN) |
| strregname = get_var_string(&argvars[0]); |
| else |
| /* Default to v:register */ |
| strregname = vimvars[VV_REG].val; |
| |
| regname = (strregname == NULL ? '"' : *strregname); |
| if (regname == 0) |
| regname = '"'; |
| |
| buf[0] = NUL; |
| buf[1] = NUL; |
| switch (get_reg_type(regname, ®len)) |
| { |
| case MLINE: buf[0] = 'V'; break; |
| case MCHAR: buf[0] = 'v'; break; |
| #ifdef FEAT_VISUAL |
| case MBLOCK: |
| buf[0] = Ctrl_V; |
| sprintf((char *)buf + 1, "%ld", reglen + 1); |
| break; |
| #endif |
| } |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = vim_strsave(buf); |
| } |
| |
| /* |
| * "getline(lnum)" function |
| */ |
| static void |
| f_getline(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| linenr_T lnum; |
| char_u *p; |
| |
| lnum = get_var_lnum(argvars); |
| |
| if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) |
| p = ml_get(lnum); |
| else |
| p = (char_u *)""; |
| |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = vim_strsave(p); |
| } |
| |
| /* |
| * "getwinposx()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_getwinposx(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = -1; |
| #ifdef FEAT_GUI |
| if (gui.in_use) |
| { |
| int x, y; |
| |
| if (gui_mch_get_winpos(&x, &y) == OK) |
| retvar->var_val.var_number = x; |
| } |
| #endif |
| } |
| |
| /* |
| * "getwinposy()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_getwinposy(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = -1; |
| #ifdef FEAT_GUI |
| if (gui.in_use) |
| { |
| int x, y; |
| |
| if (gui_mch_get_winpos(&x, &y) == OK) |
| retvar->var_val.var_number = y; |
| } |
| #endif |
| } |
| |
| /* |
| * "getwinvar()" function |
| */ |
| static void |
| f_getwinvar(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| win_T *win, *oldcurwin; |
| char_u *varname; |
| VAR v; |
| |
| ++emsg_off; |
| win = find_win_by_nr(&argvars[0]); |
| varname = get_var_string(&argvars[1]); |
| |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = NULL; |
| |
| if (win != NULL && varname != NULL) |
| { |
| if (*varname == '&') /* window-local-option */ |
| { |
| /* set curwin to be our win, temporarily */ |
| oldcurwin = curwin; |
| curwin = win; |
| |
| get_option_var(&varname, retvar , 1); |
| |
| /* restore previous notion of curwin */ |
| curwin = oldcurwin; |
| } |
| else |
| { |
| /* look up the variable */ |
| v = find_var_in_ga(&win->w_vars, varname); |
| if (v != NULL) |
| copy_var(v, retvar); |
| } |
| } |
| |
| --emsg_off; |
| } |
| |
| /* |
| * "glob()" function |
| */ |
| static void |
| f_glob(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| expand_T xpc; |
| |
| ExpandInit(&xpc); |
| xpc.xp_context = EXPAND_FILES; |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = ExpandOne(&xpc, get_var_string(&argvars[0]), |
| NULL, WILD_USE_NL|WILD_SILENT, WILD_ALL); |
| ExpandCleanup(&xpc); |
| } |
| |
| /* |
| * "globpath()" function |
| */ |
| static void |
| f_globpath(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u buf1[NUMBUFLEN]; |
| |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = globpath(get_var_string(&argvars[0]), |
| get_var_string_buf(&argvars[1], buf1)); |
| } |
| |
| /* |
| * "has()" function |
| */ |
| static void |
| f_has(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| 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 /* TODO: Should we add MACOS_CLASSIC, MACOS_X? (Dany) */ |
| "mac", |
| #endif |
| #if defined(MACOS_X_UNIX) |
| "macunix", |
| #endif |
| #ifdef OS2 |
| "os2", |
| #endif |
| #ifdef __QNX__ |
| "qnx", |
| #endif |
| #ifdef RISCOS |
| "riscos", |
| #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 |
| #ifdef WIN64 |
| "win64", |
| #endif |
| #ifdef EBCDIC |
| "ebcdic", |
| #endif |
| #ifndef CASE_INSENSITIVE_FILENAME |
| "fname_case", |
| #endif |
| #ifdef FEAT_ARABIC |
| "arabic", |
| #endif |
| #ifdef FEAT_AUTOCMD |
| "autocmd", |
| #endif |
| #ifdef FEAT_BEVAL |
| "balloon_eval", |
| #endif |
| #if defined(SOME_BUILTIN_TCAPS) || defined(ALL_BUILTIN_TCAPS) |
| "builtin_terms", |
| # ifdef ALL_BUILTIN_TCAPS |
| "all_builtin_terms", |
| # endif |
| #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_CRYPT |
| "cryptv", |
| #endif |
| #ifdef FEAT_CSCOPE |
| "cscope", |
| #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_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_FIND_ID |
| "find_in_path", |
| #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_BEOS |
| "gui_beos", |
| #endif |
| #ifdef FEAT_GUI_KDE |
| "gui_kde", |
| #endif |
| #ifdef FEAT_GUI_GTK |
| "gui_gtk", |
| # ifdef HAVE_GTK2 |
| "gui_gtk2", |
| # endif |
| #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_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_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 |
| "mzscheme", |
| #endif |
| #ifdef FEAT_OLE |
| "ole", |
| #endif |
| #ifdef FEAT_OSFILETYPE |
| "osfiletype", |
| #endif |
| #ifdef FEAT_PATH_EXTRA |
| "path_extra", |
| #endif |
| #ifdef FEAT_PERL |
| #ifndef DYNAMIC_PERL |
| "perl", |
| #endif |
| #endif |
| #ifdef FEAT_PYTHON |
| #ifndef DYNAMIC_PYTHON |
| "python", |
| #endif |
| #endif |
| #ifdef FEAT_POSTSCRIPT |
| "postscript", |
| #endif |
| #ifdef FEAT_PRINTER |
| "printer", |
| #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 FEAT_STL_OPT |
| "statusline", |
| #endif |
| #ifdef FEAT_SUN_WORKSHOP |
| "sun_workshop", |
| #endif |
| #ifdef FEAT_NETBEANS_INTG |
| "netbeans_intg", |
| #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 |
| #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 |
| #ifdef FEAT_VISUAL |
| "visual", |
| #endif |
| #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 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_var_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) |
| n = has_patch(atoi((char *)name + 5)); |
| else if (STRICMP(name, "vim_starting") == 0) |
| n = (starting != 0); |
| #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_RUBY |
| else if (STRICMP(name, "ruby") == 0) |
| n = ruby_enabled(FALSE); |
| #endif |
| #ifdef DYNAMIC_PYTHON |
| else if (STRICMP(name, "python") == 0) |
| n = python_enabled(FALSE); |
| #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(curbuf); |
| #endif |
| #if defined(WIN3264) |
| else if (STRICMP(name, "win95") == 0) |
| n = mch_windows95(); |
| #endif |
| } |
| |
| retvar->var_val.var_number = n; |
| } |
| |
| /* |
| * "hasmapto()" function |
| */ |
| static void |
| f_hasmapto(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *name; |
| char_u *mode; |
| char_u buf[NUMBUFLEN]; |
| |
| name = get_var_string(&argvars[0]); |
| if (argvars[1].var_type == VAR_UNKNOWN) |
| mode = (char_u *)"nvo"; |
| else |
| mode = get_var_string_buf(&argvars[1], buf); |
| |
| if (map_to_exists(name, mode)) |
| retvar->var_val.var_number = TRUE; |
| else |
| retvar->var_val.var_number = FALSE; |
| } |
| |
| /* |
| * "histadd()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_histadd(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_CMDHIST |
| int histype; |
| char_u *str; |
| char_u buf[NUMBUFLEN]; |
| #endif |
| |
| retvar->var_val.var_number = FALSE; |
| if (check_restricted() || check_secure()) |
| return; |
| #ifdef FEAT_CMDHIST |
| histype = get_histtype(get_var_string(&argvars[0])); |
| if (histype >= 0) |
| { |
| str = get_var_string_buf(&argvars[1], buf); |
| if (*str != NUL) |
| { |
| add_to_history(histype, str, FALSE, NUL); |
| retvar->var_val.var_number = TRUE; |
| return; |
| } |
| } |
| #endif |
| } |
| |
| /* |
| * "histdel()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_histdel(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_CMDHIST |
| int n; |
| char_u buf[NUMBUFLEN]; |
| |
| if (argvars[1].var_type == VAR_UNKNOWN) |
| /* only one argument: clear entire history */ |
| n = clr_history(get_histtype(get_var_string(&argvars[0]))); |
| else if (argvars[1].var_type == VAR_NUMBER) |
| /* index given: remove that entry */ |
| n = del_history_idx(get_histtype(get_var_string(&argvars[0])), |
| (int)get_var_number(&argvars[1])); |
| else |
| /* string given: remove all matching entries */ |
| n = del_history_entry(get_histtype(get_var_string(&argvars[0])), |
| get_var_string_buf(&argvars[1], buf)); |
| retvar->var_val.var_number = n; |
| #else |
| retvar->var_val.var_number = 0; |
| #endif |
| } |
| |
| /* |
| * "histget()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_histget(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_CMDHIST |
| int type; |
| int idx; |
| |
| type = get_histtype(get_var_string(&argvars[0])); |
| if (argvars[1].var_type == VAR_UNKNOWN) |
| idx = get_history_idx(type); |
| else |
| idx = (int)get_var_number(&argvars[1]); |
| retvar->var_val.var_string = vim_strsave(get_history_entry(type, idx)); |
| #else |
| retvar->var_val.var_string = NULL; |
| #endif |
| retvar->var_type = VAR_STRING; |
| } |
| |
| /* |
| * "histnr()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_histnr(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| int i; |
| |
| #ifdef FEAT_CMDHIST |
| i = get_histtype(get_var_string(&argvars[0])); |
| if (i >= HIST_CMD && i < HIST_COUNT) |
| i = get_history_idx(i); |
| else |
| #endif |
| i = -1; |
| retvar->var_val.var_number = i; |
| } |
| |
| /* |
| * "highlight_exists()" function |
| */ |
| static void |
| f_hlexists(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = highlight_exists(get_var_string(&argvars[0])); |
| } |
| |
| /* |
| * "highlightID(name)" function |
| */ |
| static void |
| f_hlID(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = syn_name2id(get_var_string(&argvars[0])); |
| } |
| |
| /* |
| * "hostname()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_hostname(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u hostname[256]; |
| |
| mch_get_host_name(hostname, 256); |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = vim_strsave(hostname); |
| } |
| |
| /* |
| * iconv() function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_iconv(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_MBYTE |
| char_u buf1[NUMBUFLEN]; |
| char_u buf2[NUMBUFLEN]; |
| char_u *from, *to, *str; |
| vimconv_T vimconv; |
| #endif |
| |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = NULL; |
| |
| #ifdef FEAT_MBYTE |
| str = get_var_string(&argvars[0]); |
| from = enc_canonize(enc_skip(get_var_string_buf(&argvars[1], buf1))); |
| to = enc_canonize(enc_skip(get_var_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) |
| retvar->var_val.var_string = vim_strsave(str); |
| else |
| retvar->var_val.var_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, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| linenr_T lnum; |
| |
| lnum = get_var_lnum(argvars); |
| if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) |
| retvar->var_val.var_number = get_indent_lnum(lnum); |
| else |
| retvar->var_val.var_number = -1; |
| } |
| |
| static int inputsecret_flag = 0; |
| |
| /* |
| * "input()" function |
| * Also handles inputsecret() when inputsecret is set. |
| */ |
| static void |
| f_input(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *prompt = get_var_string(&argvars[0]); |
| char_u *p = NULL; |
| int c; |
| char_u buf[NUMBUFLEN]; |
| int cmd_silent_save = cmd_silent; |
| |
| retvar->var_type = VAR_STRING; |
| |
| #ifdef NO_CONSOLE_INPUT |
| /* While starting up, there is no place to enter text. */ |
| if (no_console_input()) |
| { |
| retvar->var_val.var_string = NULL; |
| 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].var_type != VAR_UNKNOWN) |
| stuffReadbuffSpec(get_var_string_buf(&argvars[1], buf)); |
| |
| retvar->var_val.var_string = |
| getcmdline_prompt(inputsecret_flag ? NUL : '@', p, echo_attr); |
| |
| /* since the user typed this, no need to wait for return */ |
| need_wait_return = FALSE; |
| msg_didout = FALSE; |
| cmd_silent = cmd_silent_save; |
| } |
| |
| /* |
| * "inputdialog()" function |
| */ |
| static void |
| f_inputdialog(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #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]; |
| |
| message = get_var_string(&argvars[0]); |
| if (argvars[1].var_type != VAR_UNKNOWN) |
| { |
| STRNCPY(IObuff, get_var_string_buf(&argvars[1], buf), IOSIZE); |
| IObuff[IOSIZE - 1] = NUL; |
| } |
| else |
| IObuff[0] = NUL; |
| if (do_dialog(VIM_QUESTION, NULL, message, (char_u *)_("&OK\n&Cancel"), |
| 1, IObuff) == 1) |
| retvar->var_val.var_string = vim_strsave(IObuff); |
| else |
| { |
| if (argvars[1].var_type != VAR_UNKNOWN |
| && argvars[2].var_type != VAR_UNKNOWN) |
| retvar->var_val.var_string = vim_strsave( |
| get_var_string_buf(&argvars[2], buf)); |
| else |
| retvar->var_val.var_string = NULL; |
| } |
| retvar->var_type = VAR_STRING; |
| } |
| else |
| #endif |
| f_input(argvars, retvar); |
| } |
| |
| static garray_T ga_userinput = {0, 0, sizeof(tasave_T), 4, NULL}; |
| |
| /* |
| * "inputrestore()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_inputrestore(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| if (ga_userinput.ga_len > 0) |
| { |
| --ga_userinput.ga_len; |
| ++ga_userinput.ga_room; |
| restore_typeahead((tasave_T *)(ga_userinput.ga_data) |
| + ga_userinput.ga_len); |
| retvar->var_val.var_number = 0; /* OK */ |
| } |
| else if (p_verbose > 1) |
| { |
| msg((char_u *)_("called inputrestore() more often than inputsave()")); |
| retvar->var_val.var_number = 1; /* Failed */ |
| } |
| } |
| |
| /* |
| * "inputsave()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_inputsave(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| /* Add an entry to the stack of typehead storage. */ |
| if (ga_grow(&ga_userinput, 1) == OK) |
| { |
| save_typeahead((tasave_T *)(ga_userinput.ga_data) |
| + ga_userinput.ga_len); |
| ++ga_userinput.ga_len; |
| --ga_userinput.ga_room; |
| retvar->var_val.var_number = 0; /* OK */ |
| } |
| else |
| retvar->var_val.var_number = 1; /* Failed */ |
| } |
| |
| /* |
| * "inputsecret()" function |
| */ |
| static void |
| f_inputsecret(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| ++cmdline_star; |
| ++inputsecret_flag; |
| f_input(argvars, retvar); |
| --cmdline_star; |
| --inputsecret_flag; |
| } |
| |
| /* |
| * "isdirectory()" function |
| */ |
| static void |
| f_isdirectory(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = mch_isdir(get_var_string(&argvars[0])); |
| } |
| |
| /* |
| * "last_buffer_nr()" function. |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_last_buffer_nr(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| int n = 0; |
| buf_T *buf; |
| |
| for (buf = firstbuf; buf != NULL; buf = buf->b_next) |
| if (n < buf->b_fnum) |
| n = buf->b_fnum; |
| |
| retvar->var_val.var_number = n; |
| } |
| |
| /* |
| * "line(string)" function |
| */ |
| static void |
| f_line(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| linenr_T lnum = 0; |
| pos_T *fp; |
| |
| fp = var2fpos(&argvars[0], TRUE); |
| if (fp != NULL) |
| lnum = fp->lnum; |
| retvar->var_val.var_number = lnum; |
| } |
| |
| /* |
| * "line2byte(lnum)" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_line2byte(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifndef FEAT_BYTEOFF |
| retvar->var_val.var_number = -1; |
| #else |
| linenr_T lnum; |
| |
| lnum = get_var_lnum(argvars); |
| if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count + 1) |
| retvar->var_val.var_number = -1; |
| else |
| retvar->var_val.var_number = ml_find_line_or_offset(curbuf, lnum, NULL); |
| if (retvar->var_val.var_number >= 0) |
| ++retvar->var_val.var_number; |
| #endif |
| } |
| |
| /* |
| * "lispindent(lnum)" function |
| */ |
| static void |
| f_lispindent(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_LISP |
| pos_T pos; |
| linenr_T lnum; |
| |
| pos = curwin->w_cursor; |
| lnum = get_var_lnum(argvars); |
| if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) |
| { |
| curwin->w_cursor.lnum = lnum; |
| retvar->var_val.var_number = get_lisp_indent(); |
| curwin->w_cursor = pos; |
| } |
| else |
| #endif |
| retvar->var_val.var_number = -1; |
| } |
| |
| /* |
| * "localtime()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_localtime(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = (varnumber_T)time(NULL); |
| } |
| |
| /* |
| * "maparg()" function |
| */ |
| static void |
| f_maparg(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| get_maparg(argvars, retvar, TRUE); |
| } |
| |
| /* |
| * "mapcheck()" function |
| */ |
| static void |
| f_mapcheck(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| get_maparg(argvars, retvar, FALSE); |
| } |
| |
| static void |
| get_maparg(argvars, retvar, exact) |
| VAR argvars; |
| VAR retvar; |
| int exact; |
| { |
| char_u *keys; |
| char_u *which; |
| char_u buf[NUMBUFLEN]; |
| char_u *keys_buf = NULL; |
| char_u *rhs; |
| int mode; |
| garray_T ga; |
| |
| /* return empty string for failure */ |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = NULL; |
| |
| keys = get_var_string(&argvars[0]); |
| if (*keys == NUL) |
| return; |
| |
| if (argvars[1].var_type != VAR_UNKNOWN) |
| which = get_var_string_buf(&argvars[1], buf); |
| else |
| which = (char_u *)""; |
| mode = get_map_mode(&which, 0); |
| |
| keys = replace_termcodes(keys, &keys_buf, TRUE, TRUE); |
| rhs = check_map(keys, mode, exact); |
| vim_free(keys_buf); |
| if (rhs != NULL) |
| { |
| ga_init(&ga); |
| ga.ga_itemsize = 1; |
| ga.ga_growsize = 40; |
| |
| while (*rhs != NUL) |
| ga_concat(&ga, str2special(&rhs, FALSE)); |
| |
| ga_append(&ga, NUL); |
| retvar->var_val.var_string = (char_u *)ga.ga_data; |
| } |
| } |
| |
| /* |
| * "match()" function |
| */ |
| static void |
| f_match(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| find_some_match(argvars, retvar, 1); |
| } |
| |
| /* |
| * "matchend()" function |
| */ |
| static void |
| f_matchend(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| find_some_match(argvars, retvar, 0); |
| } |
| |
| /* |
| * "matchstr()" function |
| */ |
| static void |
| f_matchstr(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| find_some_match(argvars, retvar, 2); |
| } |
| |
| static void |
| find_some_match(argvars, retvar, type) |
| VAR argvars; |
| VAR retvar; |
| int type; |
| { |
| char_u *str; |
| char_u *pat; |
| regmatch_T regmatch; |
| char_u patbuf[NUMBUFLEN]; |
| char_u *save_cpo; |
| long start = 0; |
| |
| /* Make 'cpoptions' empty, the 'l' flag should not be used here. */ |
| save_cpo = p_cpo; |
| p_cpo = (char_u *)""; |
| |
| str = get_var_string(&argvars[0]); |
| pat = get_var_string_buf(&argvars[1], patbuf); |
| |
| if (type == 2) |
| { |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = NULL; |
| } |
| else |
| retvar->var_val.var_number = -1; |
| |
| if (argvars[2].var_type != VAR_UNKNOWN) |
| { |
| start = get_var_number(&argvars[2]); |
| if (start < 0) |
| start = 0; |
| if (start > (long)STRLEN(str)) |
| goto theend; |
| str += start; |
| } |
| |
| regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING); |
| if (regmatch.regprog != NULL) |
| { |
| regmatch.rm_ic = p_ic; |
| if (vim_regexec_nl(®match, str, (colnr_T)0)) |
| { |
| if (type == 2) |
| retvar->var_val.var_string = vim_strnsave(regmatch.startp[0], |
| (int)(regmatch.endp[0] - regmatch.startp[0])); |
| else |
| { |
| if (type != 0) |
| retvar->var_val.var_number = |
| (varnumber_T)(regmatch.startp[0] - str); |
| else |
| retvar->var_val.var_number = |
| (varnumber_T)(regmatch.endp[0] - str); |
| retvar->var_val.var_number += start; |
| } |
| } |
| vim_free(regmatch.regprog); |
| } |
| |
| theend: |
| p_cpo = save_cpo; |
| } |
| |
| /* |
| * "mode()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_mode(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u buf[2]; |
| |
| #ifdef FEAT_VISUAL |
| if (VIsual_active) |
| { |
| if (VIsual_select) |
| buf[0] = VIsual_mode + 's' - 'v'; |
| else |
| buf[0] = VIsual_mode; |
| } |
| else |
| #endif |
| if (State == HITRETURN || State == ASKMORE || State == SETWSIZE) |
| buf[0] = 'r'; |
| else if (State & INSERT) |
| { |
| if (State & REPLACE_FLAG) |
| buf[0] = 'R'; |
| else |
| buf[0] = 'i'; |
| } |
| else if (State & CMDLINE) |
| buf[0] = 'c'; |
| else |
| buf[0] = 'n'; |
| |
| buf[1] = NUL; |
| retvar->var_val.var_string = vim_strsave(buf); |
| retvar->var_type = VAR_STRING; |
| } |
| |
| /* |
| * "nr2char()" function |
| */ |
| static void |
| f_nr2char(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u buf[NUMBUFLEN]; |
| |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| buf[(*mb_char2bytes)((int)get_var_number(&argvars[0]), buf)] = NUL; |
| else |
| #endif |
| { |
| buf[0] = (char_u)get_var_number(&argvars[0]); |
| buf[1] = NUL; |
| } |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = vim_strsave(buf); |
| } |
| |
| /* |
| * "rename({from}, {to})" function |
| */ |
| static void |
| f_rename(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u buf[NUMBUFLEN]; |
| |
| if (check_restricted() || check_secure()) |
| retvar->var_val.var_number = -1; |
| else |
| retvar->var_val.var_number = vim_rename(get_var_string(&argvars[0]), |
| get_var_string_buf(&argvars[1], buf)); |
| } |
| |
| /* |
| * "resolve()" function |
| */ |
| static void |
| f_resolve(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *p; |
| |
| p = get_var_string(&argvars[0]); |
| #ifdef FEAT_SHORTCUT |
| { |
| char_u *v = NULL; |
| |
| v = mch_resolve_shortcut(p); |
| if (v != NULL) |
| retvar->var_val.var_string = v; |
| else |
| retvar->var_val.var_string = vim_strsave(p); |
| } |
| #else |
| # ifdef HAVE_READLINK |
| { |
| char_u buf[MAXPATHL + 1]; |
| 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 && vim_ispathsep(p[len-1])) |
| has_trailing_pathsep = TRUE; |
| |
| 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; |
| } |
| |
| 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?)")); |
| retvar->var_val.var_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 = vim_strnsave(q-1, STRLEN(q-1)+STRLEN(remain)); |
| if (cpy != NULL) |
| { |
| STRCAT(cpy, remain); |
| 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) |
| STRCPY(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 = vim_strnsave((char_u *)"./", 2 + STRLEN(p)); |
| if (cpy != NULL) |
| { |
| STRCAT(cpy, p); |
| 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) |
| mch_memmove(p, p + 2, STRLEN(p + 2) + (size_t)1); |
| } |
| } |
| |
| /* 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); |
| while ((q > p + 2 || (q == p + 2 && !vim_ispathsep(*p))) |
| && vim_ispathsep(q[-1])) |
| --q; |
| *q = NUL; |
| } |
| |
| retvar->var_val.var_string = p; |
| } |
| # else |
| retvar->var_val.var_string = vim_strsave(p); |
| # endif |
| #endif |
| |
| simplify_filename(retvar->var_val.var_string); |
| |
| #ifdef HAVE_READLINK |
| fail: |
| #endif |
| retvar->var_type = VAR_STRING; |
| } |
| |
| /* |
| * "simplify()" function |
| */ |
| static void |
| f_simplify(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *p; |
| |
| p = get_var_string(&argvars[0]); |
| retvar->var_val.var_string = vim_strsave(p); |
| simplify_filename(retvar->var_val.var_string); /* simplify in place */ |
| retvar->var_type = VAR_STRING; |
| } |
| |
| /* |
| * "search()" function |
| */ |
| static void |
| f_search(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *pat; |
| pos_T pos; |
| int save_p_ws = p_ws; |
| int dir; |
| |
| pat = get_var_string(&argvars[0]); |
| dir = get_search_arg(&argvars[1], NULL); /* may set p_ws */ |
| |
| pos = curwin->w_cursor; |
| if (searchit(curwin, curbuf, &pos, dir, pat, 1L, |
| SEARCH_KEEP, RE_SEARCH) != FAIL) |
| { |
| retvar->var_val.var_number = pos.lnum; |
| curwin->w_cursor = pos; |
| /* "/$" will put the cursor after the end of the line, may need to |
| * correct that here */ |
| check_cursor(); |
| } |
| else |
| retvar->var_val.var_number = 0; |
| p_ws = save_p_ws; |
| } |
| |
| #define SP_NOMOVE 1 /* don't move cursor */ |
| #define SP_REPEAT 2 /* repeat to find outer pair */ |
| #define SP_RETCOUNT 4 /* return matchcount */ |
| |
| /* |
| * "searchpair()" function |
| */ |
| static void |
| f_searchpair(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *spat, *mpat, *epat; |
| char_u *skip; |
| char_u *pat, *pat2, *pat3; |
| pos_T pos; |
| pos_T firstpos; |
| pos_T save_cursor; |
| pos_T save_pos; |
| int save_p_ws = p_ws; |
| char_u *save_cpo; |
| int dir; |
| int flags = 0; |
| char_u nbuf1[NUMBUFLEN]; |
| char_u nbuf2[NUMBUFLEN]; |
| char_u nbuf3[NUMBUFLEN]; |
| int n; |
| int r; |
| int nest = 1; |
| int err; |
| |
| retvar->var_val.var_number = 0; /* default: FAIL */ |
| |
| /* Make 'cpoptions' empty, the 'l' flag should not be used here. */ |
| save_cpo = p_cpo; |
| p_cpo = (char_u *)""; |
| |
| /* Get the three pattern arguments: start, middle, end. */ |
| spat = get_var_string(&argvars[0]); |
| mpat = get_var_string_buf(&argvars[1], nbuf1); |
| epat = get_var_string_buf(&argvars[2], nbuf2); |
| |
| /* 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); |
| |
| /* Handle the optional fourth argument: flags */ |
| dir = get_search_arg(&argvars[3], &flags); /* may set p_ws */ |
| |
| /* Optional fifth argument: skip expresion */ |
| if (argvars[3].var_type == VAR_UNKNOWN |
| || argvars[4].var_type == VAR_UNKNOWN) |
| skip = (char_u *)""; |
| else |
| skip = get_var_string_buf(&argvars[4], nbuf3); |
| |
| save_cursor = curwin->w_cursor; |
| pos = curwin->w_cursor; |
| firstpos.lnum = 0; |
| pat = pat3; |
| for (;;) |
| { |
| n = searchit(curwin, curbuf, &pos, dir, pat, 1L, |
| SEARCH_KEEP, RE_SEARCH); |
| 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 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; |
| retvar->var_val.var_number = -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) |
| ++retvar->var_val.var_number; |
| else |
| retvar->var_val.var_number = pos.lnum; |
| curwin->w_cursor = pos; |
| if (!(flags & SP_REPEAT)) |
| break; |
| nest = 1; /* search for next unmatched */ |
| } |
| } |
| |
| /* If 'n' flag is used or search failed: restore cursor position. */ |
| if ((flags & SP_NOMOVE) || retvar->var_val.var_number == 0) |
| curwin->w_cursor = save_cursor; |
| |
| theend: |
| vim_free(pat2); |
| vim_free(pat3); |
| p_ws = save_p_ws; |
| p_cpo = save_cpo; |
| } |
| |
| static int |
| get_search_arg(varp, flagsp) |
| VAR varp; |
| int *flagsp; |
| { |
| int dir = FORWARD; |
| char_u *flags; |
| char_u nbuf[NUMBUFLEN]; |
| |
| if (varp->var_type != VAR_UNKNOWN) |
| { |
| flags = get_var_string_buf(varp, nbuf); |
| if (vim_strchr(flags, 'b') != NULL) |
| dir = BACKWARD; |
| if (vim_strchr(flags, 'w') != NULL) |
| p_ws = TRUE; |
| if (vim_strchr(flags, 'W') != NULL) |
| p_ws = FALSE; |
| if (flagsp != NULL) |
| { |
| if (vim_strchr(flags, 'n') != NULL) |
| *flagsp |= SP_NOMOVE; |
| if (vim_strchr(flags, 'r') != NULL) |
| *flagsp |= SP_REPEAT; |
| if (vim_strchr(flags, 'm') != NULL) |
| *flagsp |= SP_RETCOUNT; |
| } |
| } |
| return dir; |
| } |
| |
| /* |
| * "setbufvar()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_setbufvar(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| buf_T *buf; |
| #ifdef FEAT_AUTOCMD |
| aco_save_T aco; |
| #else |
| buf_T *save_curbuf; |
| #endif |
| char_u *varname, *bufvarname; |
| VAR varp; |
| char_u nbuf[NUMBUFLEN]; |
| |
| if (check_restricted() || check_secure()) |
| return; |
| ++emsg_off; |
| buf = get_buf_var(&argvars[0]); |
| varname = get_var_string(&argvars[1]); |
| varp = &argvars[2]; |
| |
| if (buf != NULL && varname != NULL && varp != NULL) |
| { |
| /* set curbuf to be our buf, temporarily */ |
| #ifdef FEAT_AUTOCMD |
| aucmd_prepbuf(&aco, buf); |
| #else |
| save_curbuf = curbuf; |
| curbuf = buf; |
| #endif |
| |
| if (*varname == '&') |
| { |
| ++varname; |
| set_option_value(varname, get_var_number(varp), |
| get_var_string_buf(varp, nbuf), OPT_LOCAL); |
| } |
| else |
| { |
| bufvarname = alloc((unsigned)STRLEN(varname) + 3); |
| if (bufvarname != NULL) |
| { |
| STRCPY(bufvarname, "b:"); |
| STRCPY(bufvarname + 2, varname); |
| set_var(bufvarname, varp); |
| vim_free(bufvarname); |
| } |
| } |
| |
| /* reset notion of buffer */ |
| #ifdef FEAT_AUTOCMD |
| aucmd_restbuf(&aco); |
| #else |
| curbuf = save_curbuf; |
| #endif |
| } |
| --emsg_off; |
| } |
| |
| /* |
| * "setcmdpos()" function |
| */ |
| static void |
| f_setcmdpos(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = set_cmdline_pos( |
| (int)get_var_number(&argvars[0]) - 1); |
| } |
| |
| /* |
| * "setline()" function |
| */ |
| static void |
| f_setline(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| linenr_T lnum; |
| char_u *line; |
| |
| lnum = get_var_lnum(argvars); |
| line = get_var_string(&argvars[1]); |
| retvar->var_val.var_number = 1; /* FAIL is default */ |
| |
| if (lnum >= 1 |
| && lnum <= curbuf->b_ml.ml_line_count |
| && u_savesub(lnum) == OK |
| && ml_replace(lnum, line, TRUE) == OK) |
| { |
| changed_bytes(lnum, 0); |
| check_cursor_col(); |
| retvar->var_val.var_number = 0; |
| } |
| } |
| |
| /* |
| * "setreg()" function |
| */ |
| static void |
| f_setreg(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| int regname; |
| char_u *strregname; |
| char_u *stropt; |
| int append; |
| char_u yank_type; |
| long block_len; |
| |
| block_len = -1; |
| yank_type = MAUTO; |
| append = FALSE; |
| |
| strregname = get_var_string(argvars); |
| retvar->var_val.var_number = 1; /* FAIL is default */ |
| |
| regname = (strregname == NULL ? '"' : *strregname); |
| if (regname == 0 || regname == '@') |
| regname = '"'; |
| else if (regname == '=') |
| return; |
| |
| if (argvars[2].var_type != VAR_UNKNOWN) |
| { |
| for (stropt = get_var_string(&argvars[2]); *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; |
| #ifdef FEAT_VISUAL |
| case 'b': case Ctrl_V: /* block-wise selection */ |
| yank_type = MBLOCK; |
| if (VIM_ISDIGIT(stropt[1])) |
| { |
| ++stropt; |
| block_len = getdigits(&stropt) - 1; |
| --stropt; |
| } |
| break; |
| #endif |
| } |
| } |
| |
| write_reg_contents_ex(regname, get_var_string(&argvars[1]), -1, |
| append, yank_type, block_len); |
| retvar->var_val.var_number = 0; |
| } |
| |
| |
| /* |
| * "setwinvar(expr)" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_setwinvar(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| win_T *win; |
| #ifdef FEAT_WINDOWS |
| win_T *save_curwin; |
| #endif |
| char_u *varname, *winvarname; |
| VAR varp; |
| char_u nbuf[NUMBUFLEN]; |
| |
| if (check_restricted() || check_secure()) |
| return; |
| ++emsg_off; |
| win = find_win_by_nr(&argvars[0]); |
| varname = get_var_string(&argvars[1]); |
| varp = &argvars[2]; |
| |
| if (win != NULL && varname != NULL && varp != NULL) |
| { |
| #ifdef FEAT_WINDOWS |
| /* set curwin to be our win, temporarily */ |
| save_curwin = curwin; |
| curwin = win; |
| curbuf = curwin->w_buffer; |
| #endif |
| |
| if (*varname == '&') |
| { |
| ++varname; |
| set_option_value(varname, get_var_number(varp), |
| get_var_string_buf(varp, nbuf), OPT_LOCAL); |
| } |
| else |
| { |
| winvarname = alloc((unsigned)STRLEN(varname) + 3); |
| if (winvarname != NULL) |
| { |
| STRCPY(winvarname, "w:"); |
| STRCPY(winvarname + 2, varname); |
| set_var(winvarname, varp); |
| vim_free(winvarname); |
| } |
| } |
| |
| #ifdef FEAT_WINDOWS |
| /* Restore current window, if it's still valid (autocomands can make |
| * it invalid). */ |
| if (win_valid(save_curwin)) |
| { |
| curwin = save_curwin; |
| curbuf = curwin->w_buffer; |
| } |
| #endif |
| } |
| --emsg_off; |
| } |
| |
| /* |
| * "nextnonblank()" function |
| */ |
| static void |
| f_nextnonblank(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| linenr_T lnum; |
| |
| for (lnum = get_var_lnum(argvars); ; ++lnum) |
| { |
| if (lnum > curbuf->b_ml.ml_line_count) |
| { |
| lnum = 0; |
| break; |
| } |
| if (*skipwhite(ml_get(lnum)) != NUL) |
| break; |
| } |
| retvar->var_val.var_number = lnum; |
| } |
| |
| /* |
| * "prevnonblank()" function |
| */ |
| static void |
| f_prevnonblank(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| linenr_T lnum; |
| |
| lnum = get_var_lnum(argvars); |
| if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) |
| lnum = 0; |
| else |
| while (lnum >= 1 && *skipwhite(ml_get(lnum)) == NUL) |
| --lnum; |
| retvar->var_val.var_number = lnum; |
| } |
| |
| #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 |
| |
| /*ARGSUSED*/ |
| static void |
| f_serverlist(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *r = NULL; |
| |
| #ifdef FEAT_CLIENTSERVER |
| # ifdef WIN32 |
| r = serverGetVimNames(); |
| # else |
| make_connection(); |
| if (X_DISPLAY != NULL) |
| r = serverGetVimNames(X_DISPLAY); |
| # endif |
| #endif |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = r; |
| } |
| |
| /*ARGSUSED*/ |
| static void |
| f_remote_peek(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_CLIENTSERVER |
| var v; |
| char_u *s = NULL; |
| # ifdef WIN32 |
| int n = 0; |
| # endif |
| |
| if (check_restricted() || check_secure()) |
| { |
| retvar->var_val.var_number = -1; |
| return; |
| } |
| # ifdef WIN32 |
| sscanf(get_var_string(&argvars[0]), "%x", &n); |
| if (n == 0) |
| retvar->var_val.var_number = -1; |
| else |
| { |
| s = serverGetReply((HWND)n, FALSE, FALSE, FALSE); |
| retvar->var_val.var_number = (s != NULL); |
| } |
| # else |
| retvar->var_val.var_number = 0; |
| if (check_connection() == FAIL) |
| return; |
| |
| retvar->var_val.var_number = serverPeekReply(X_DISPLAY, |
| serverStrToWin(get_var_string(&argvars[0])), &s); |
| # endif |
| |
| if (argvars[1].var_type != VAR_UNKNOWN && retvar->var_val.var_number > 0) |
| { |
| v.var_type = VAR_STRING; |
| v.var_val.var_string = vim_strsave(s); |
| set_var(get_var_string(&argvars[1]), &v); |
| } |
| #else |
| retvar->var_val.var_number = -1; |
| #endif |
| } |
| |
| /*ARGSUSED*/ |
| static void |
| f_remote_read(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *r = NULL; |
| |
| #ifdef FEAT_CLIENTSERVER |
| if (!check_restricted() && !check_secure()) |
| { |
| # ifdef WIN32 |
| /* The server's HWND is encoded in the 'id' parameter */ |
| int n = 0; |
| |
| sscanf(get_var_string(&argvars[0]), "%x", &n); |
| if (n != 0) |
| r = serverGetReply((HWND)n, FALSE, TRUE, TRUE); |
| if (r == NULL) |
| # else |
| if (check_connection() == FAIL || serverReadReply(X_DISPLAY, |
| serverStrToWin(get_var_string(&argvars[0])), &r, FALSE) < 0) |
| # endif |
| EMSG(_("E277: Unable to read a server reply")); |
| } |
| #endif |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = r; |
| } |
| |
| /*ARGSUSED*/ |
| static void |
| f_server2client(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_CLIENTSERVER |
| char_u buf[NUMBUFLEN]; |
| char_u *server = get_var_string(&argvars[0]); |
| char_u *reply = get_var_string_buf(&argvars[1], buf); |
| |
| retvar->var_val.var_number = -1; |
| 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; |
| } |
| retvar->var_val.var_number = 0; |
| #else |
| retvar->var_val.var_number = -1; |
| #endif |
| } |
| |
| #ifdef FEAT_CLIENTSERVER |
| static void remote_common __ARGS((VAR argvars, VAR retvar, int expr)); |
| |
| static void |
| remote_common(argvars, retvar, expr) |
| VAR argvars; |
| VAR retvar; |
| 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_var_string(&argvars[0]); |
| keys = get_var_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; |
| } |
| |
| retvar->var_val.var_string = r; |
| |
| if (argvars[2].var_type != VAR_UNKNOWN) |
| { |
| var v; |
| char_u str[30]; |
| |
| sprintf((char *)str, "0x%x", (unsigned int)w); |
| v.var_type = VAR_STRING; |
| v.var_val.var_string = vim_strsave(str); |
| set_var(get_var_string(&argvars[2]), &v); |
| } |
| } |
| #endif |
| |
| /* |
| * "remote_expr()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_remote_expr(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = NULL; |
| #ifdef FEAT_CLIENTSERVER |
| remote_common(argvars, retvar, TRUE); |
| #endif |
| } |
| |
| /* |
| * "remote_send()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_remote_send(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = NULL; |
| #ifdef FEAT_CLIENTSERVER |
| remote_common(argvars, retvar, FALSE); |
| #endif |
| } |
| |
| /* |
| * "remote_foreground()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_remote_foreground(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = 0; |
| #ifdef FEAT_CLIENTSERVER |
| # ifdef WIN32 |
| /* On Win32 it's done in this application. */ |
| serverForeground(get_var_string(&argvars[0])); |
| # else |
| /* Send a foreground() expression to the server. */ |
| argvars[1].var_type = VAR_STRING; |
| argvars[1].var_val.var_string = vim_strsave((char_u *)"foreground()"); |
| argvars[2].var_type = VAR_UNKNOWN; |
| remote_common(argvars, retvar, TRUE); |
| vim_free(argvars[1].var_val.var_string); |
| # endif |
| #endif |
| } |
| |
| #ifdef HAVE_STRFTIME |
| /* |
| * "strftime({format}[, {time}])" function |
| */ |
| static void |
| f_strftime(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u result_buf[256]; |
| struct tm *curtime; |
| time_t seconds; |
| char_u *p; |
| |
| retvar->var_type = VAR_STRING; |
| |
| p = get_var_string(&argvars[0]); |
| if (argvars[1].var_type == VAR_UNKNOWN) |
| seconds = time(NULL); |
| else |
| seconds = (time_t)get_var_number(&argvars[1]); |
| curtime = localtime(&seconds); |
| /* MSVC returns NULL for an invalid value of seconds. */ |
| if (curtime == NULL) |
| retvar->var_val.var_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) |
| retvar->var_val.var_string = |
| string_convert(&conv, result_buf, NULL); |
| else |
| # endif |
| retvar->var_val.var_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, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u buf[NUMBUFLEN]; |
| char_u *needle; |
| char_u *haystack; |
| char_u *pos; |
| |
| needle = get_var_string(&argvars[1]); |
| haystack = get_var_string_buf(&argvars[0], buf); |
| pos = (char_u *)strstr((char *)haystack, (char *)needle); |
| |
| if (pos == NULL) |
| retvar->var_val.var_number = -1; |
| else |
| retvar->var_val.var_number = (varnumber_T) (pos - haystack); |
| } |
| |
| /* |
| * "strridx()" function |
| */ |
| static void |
| f_strridx(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u buf[NUMBUFLEN]; |
| char_u *needle; |
| char_u *haystack; |
| char_u *rest; |
| char_u *lastmatch = NULL; |
| |
| needle = get_var_string(&argvars[1]); |
| haystack = get_var_string_buf(&argvars[0], buf); |
| rest = haystack; |
| while (*haystack != '\0') |
| { |
| rest = (char_u *)strstr((char *)rest, (char *)needle); |
| if (rest == NULL) |
| break; |
| lastmatch = rest++; |
| } |
| |
| if (lastmatch == NULL) |
| retvar->var_val.var_number = -1; |
| else |
| retvar->var_val.var_number = (varnumber_T) (lastmatch - haystack); |
| } |
| |
| /* |
| * "strlen()" function |
| */ |
| static void |
| f_strlen(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_val.var_number = (varnumber_T) (STRLEN(get_var_string(&argvars[0]))); |
| } |
| |
| /* |
| * "strpart()" function |
| */ |
| static void |
| f_strpart(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *p; |
| int n; |
| int len; |
| int slen; |
| |
| p = get_var_string(&argvars[0]); |
| slen = (int)STRLEN(p); |
| |
| n = get_var_number(&argvars[1]); |
| if (argvars[2].var_type != VAR_UNKNOWN) |
| len = get_var_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; |
| |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = vim_strnsave(p + n, len); |
| } |
| |
| /* |
| * "strtrans()" function |
| */ |
| static void |
| f_strtrans(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = transstr(get_var_string(&argvars[0])); |
| } |
| |
| /* |
| * "synID(line, col, trans)" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_synID(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| int id = 0; |
| #ifdef FEAT_SYN_HL |
| long line; |
| long col; |
| int trans; |
| |
| line = get_var_lnum(argvars); |
| col = get_var_number(&argvars[1]) - 1; |
| trans = get_var_number(&argvars[2]); |
| |
| if (line >= 1 && line <= curbuf->b_ml.ml_line_count |
| && col >= 0 && col < (long)STRLEN(ml_get(line))) |
| id = syn_get_id(line, col, trans); |
| #endif |
| |
| retvar->var_val.var_number = id; |
| } |
| |
| /* |
| * "synIDattr(id, what [, mode])" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_synIDattr(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *p = NULL; |
| #ifdef FEAT_SYN_HL |
| int id; |
| char_u *what; |
| char_u *mode; |
| char_u modebuf[NUMBUFLEN]; |
| int modec; |
| |
| id = get_var_number(&argvars[0]); |
| what = get_var_string(&argvars[1]); |
| if (argvars[2].var_type != VAR_UNKNOWN) |
| { |
| mode = get_var_string_buf(&argvars[2], modebuf); |
| modec = TOLOWER_ASC(mode[0]); |
| if (modec != 't' && modec != 'c' |
| #ifdef FEAT_GUI |
| && modec != 'g' |
| #endif |
| ) |
| 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[#] */ |
| 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': /* standout */ |
| p = highlight_has_attr(id, HL_STANDOUT, modec); |
| break; |
| |
| case 'u': /* underline */ |
| p = highlight_has_attr(id, HL_UNDERLINE, modec); |
| break; |
| } |
| |
| if (p != NULL) |
| p = vim_strsave(p); |
| #endif |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = p; |
| } |
| |
| /* |
| * "synIDtrans(id)" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_synIDtrans(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| int id; |
| |
| #ifdef FEAT_SYN_HL |
| id = get_var_number(&argvars[0]); |
| |
| if (id > 0) |
| id = syn_get_final_id(id); |
| else |
| #endif |
| id = 0; |
| |
| retvar->var_val.var_number = id; |
| } |
| |
| /* |
| * "system()" function |
| */ |
| static void |
| f_system(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *p; |
| |
| p = get_cmd_output(get_var_string(&argvars[0]), SHELL_SILENT); |
| #ifdef USE_CR |
| /* translate <CR> into <NL> */ |
| if (p != NULL) |
| { |
| char_u *s; |
| |
| for (s = p; *s; ++s) |
| { |
| if (*s == CAR) |
| *s = NL; |
| } |
| } |
| #else |
| # ifdef USE_CRNL |
| /* translate <CR><NL> into <NL> */ |
| if (p != NULL) |
| { |
| char_u *s, *d; |
| |
| d = p; |
| for (s = p; *s; ++s) |
| { |
| if (s[0] == CAR && s[1] == NL) |
| ++s; |
| *d++ = *s; |
| } |
| *d = NUL; |
| } |
| # endif |
| #endif |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = p; |
| } |
| |
| /* |
| * "submatch()" function |
| */ |
| static void |
| f_submatch(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = reg_submatch((int)get_var_number(&argvars[0])); |
| } |
| |
| /* |
| * "substitute()" function |
| */ |
| static void |
| f_substitute(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u patbuf[NUMBUFLEN]; |
| char_u subbuf[NUMBUFLEN]; |
| char_u flagsbuf[NUMBUFLEN]; |
| |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = do_string_sub( |
| get_var_string(&argvars[0]), |
| get_var_string_buf(&argvars[1], patbuf), |
| get_var_string_buf(&argvars[2], subbuf), |
| get_var_string_buf(&argvars[3], flagsbuf)); |
| } |
| |
| /* |
| * "tempname()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_tempname(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| static int x = 'A'; |
| |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = vim_tempname(x); |
| |
| /* 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'); |
| } |
| |
| /* |
| * "tolower(string)" function |
| */ |
| static void |
| f_tolower(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *p; |
| |
| p = vim_strsave(get_var_string(&argvars[0])); |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_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_check(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_check)(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, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *p; |
| |
| p = vim_strsave(get_var_string(&argvars[0])); |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = p; |
| |
| if (p != NULL) |
| while (*p != NUL) |
| { |
| #ifdef FEAT_MBYTE |
| int l; |
| |
| if (enc_utf8) |
| { |
| int c, uc; |
| |
| c = utf_ptr2char(p); |
| uc = utf_toupper(c); |
| l = utf_ptr2len_check(p); |
| /* TODO: reallocate string when byte count changes. */ |
| if (utf_char2len(uc) == l) |
| utf_char2bytes(uc, p); |
| p += l; |
| } |
| else if (has_mbyte && (l = (*mb_ptr2len_check)(p)) > 1) |
| p += l; /* skip multi-byte character */ |
| else |
| #endif |
| { |
| *p = TOUPPER_LOC(*p); /* note that toupper() can be a macro */ |
| p++; |
| } |
| } |
| } |
| |
| /* |
| * "tr(string, fromstr, tostr)" function |
| */ |
| static void |
| f_tr(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| char_u *instr; |
| 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; |
| |
| instr = get_var_string(&argvars[0]); |
| fromstr = get_var_string_buf(&argvars[1], buf); |
| tostr = get_var_string_buf(&argvars[2], buf2); |
| |
| /* Default return value: empty string. */ |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = NULL; |
| 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)) |
| { |
| error: |
| EMSG2(_(e_invarg2), fromstr); |
| ga_clear(&ga); |
| return; |
| } |
| |
| /* fromstr and tostr have to contain the same number of chars */ |
| while (*instr != NUL) |
| { |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| inlen = mb_ptr2len_check(instr); |
| cpstr = instr; |
| cplen = inlen; |
| idx = 0; |
| for (p = fromstr; *p != NUL; p += fromlen) |
| { |
| fromlen = mb_ptr2len_check(p); |
| if (fromlen == inlen && STRNCMP(instr, p, inlen) == 0) |
| { |
| for (p = tostr; *p != NUL; p += tolen) |
| { |
| tolen = mb_ptr2len_check(p); |
| if (idx-- == 0) |
| { |
| cplen = tolen; |
| cpstr = p; |
| break; |
| } |
| } |
| if (*p == NUL) /* tostr is shorter than fromstr */ |
| goto error; |
| break; |
| } |
| ++idx; |
| } |
| |
| if (first && cpstr == instr) |
| { |
| /* Check that fromstr and tostr have the same number of |
| * (multi-byte) characters. Done only once when a character |
| * of instr doesn't appear in fromstr. */ |
| first = FALSE; |
| for (p = tostr; *p != NUL; p += tolen) |
| { |
| tolen = mb_ptr2len_check(p); |
| --idx; |
| } |
| if (idx != 0) |
| goto error; |
| } |
| |
| ga_grow(&ga, cplen); |
| mch_memmove((char *)ga.ga_data + ga.ga_len, cpstr, (size_t)cplen); |
| ga.ga_len += cplen; |
| ga.ga_room -= cplen; |
| |
| instr += inlen; |
| } |
| else |
| #endif |
| { |
| /* When not using multi-byte chars we can do it faster. */ |
| p = vim_strchr(fromstr, *instr); |
| if (p != NULL) |
| ga_append(&ga, tostr[p - fromstr]); |
| else |
| ga_append(&ga, *instr); |
| ++instr; |
| } |
| } |
| |
| retvar->var_val.var_string = ga.ga_data; |
| } |
| |
| /* |
| * "type(expr)" function |
| */ |
| static void |
| f_type(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| if (argvars[0].var_type == VAR_NUMBER) |
| retvar->var_val.var_number = 0; |
| else |
| retvar->var_val.var_number = 1; |
| } |
| |
| /* |
| * "virtcol(string)" function |
| */ |
| static void |
| f_virtcol(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| colnr_T vcol = 0; |
| pos_T *fp; |
| |
| fp = var2fpos(&argvars[0], FALSE); |
| if (fp != NULL && fp->lnum <= curbuf->b_ml.ml_line_count) |
| { |
| getvvcol(curwin, fp, NULL, NULL, &vcol); |
| ++vcol; |
| } |
| |
| retvar->var_val.var_number = vcol; |
| } |
| |
| /* |
| * "visualmode()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_visualmode(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #ifdef FEAT_VISUAL |
| char_u str[2]; |
| |
| retvar->var_type = VAR_STRING; |
| str[0] = curbuf->b_visual_mode_eval; |
| str[1] = NUL; |
| retvar->var_val.var_string = vim_strsave(str); |
| |
| /* A non-zero number or non-empty string argument: reset mode. */ |
| if ((argvars[0].var_type == VAR_NUMBER |
| && argvars[0].var_val.var_number != 0) |
| || (argvars[0].var_type == VAR_STRING |
| && *get_var_string(&argvars[0]) != NUL)) |
| curbuf->b_visual_mode_eval = NUL; |
| #else |
| retvar->var_val.var_number = 0; /* return anything, it won't work anyway */ |
| #endif |
| } |
| |
| /* |
| * "winbufnr(nr)" function |
| */ |
| static void |
| f_winbufnr(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| win_T *wp; |
| |
| wp = find_win_by_nr(&argvars[0]); |
| if (wp == NULL) |
| retvar->var_val.var_number = -1; |
| else |
| retvar->var_val.var_number = wp->w_buffer->b_fnum; |
| } |
| |
| /* |
| * "wincol()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_wincol(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| validate_cursor(); |
| retvar->var_val.var_number = curwin->w_wcol + 1; |
| } |
| |
| /* |
| * "winheight(nr)" function |
| */ |
| static void |
| f_winheight(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| win_T *wp; |
| |
| wp = find_win_by_nr(&argvars[0]); |
| if (wp == NULL) |
| retvar->var_val.var_number = -1; |
| else |
| retvar->var_val.var_number = wp->w_height; |
| } |
| |
| /* |
| * "winline()" function |
| */ |
| /*ARGSUSED*/ |
| static void |
| f_winline(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| validate_cursor(); |
| retvar->var_val.var_number = curwin->w_wrow + 1; |
| } |
| |
| /* |
| * "winnr()" function |
| */ |
| /* ARGSUSED */ |
| static void |
| f_winnr(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| int nr = 1; |
| #ifdef FEAT_WINDOWS |
| win_T *wp; |
| |
| for (wp = firstwin; wp != curwin; wp = wp->w_next) |
| ++nr; |
| #endif |
| retvar->var_val.var_number = nr; |
| } |
| |
| /* |
| * "winrestcmd()" function |
| */ |
| /* ARGSUSED */ |
| static void |
| f_winrestcmd(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| #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; |
| } |
| |
| retvar->var_val.var_string = ga.ga_data; |
| #else |
| retvar->var_val.var_string = NULL; |
| #endif |
| retvar->var_type = VAR_STRING; |
| } |
| |
| /* |
| * "winwidth(nr)" function |
| */ |
| static void |
| f_winwidth(argvars, retvar) |
| VAR argvars; |
| VAR retvar; |
| { |
| win_T *wp; |
| |
| wp = find_win_by_nr(&argvars[0]); |
| if (wp == NULL) |
| retvar->var_val.var_number = -1; |
| else |
| #ifdef FEAT_VERTSPLIT |
| retvar->var_val.var_number = wp->w_width; |
| #else |
| retvar->var_val.var_number = Columns; |
| #endif |
| } |
| |
| static win_T * |
| find_win_by_nr(vp) |
| VAR vp; |
| { |
| #ifdef FEAT_WINDOWS |
| win_T *wp; |
| #endif |
| int nr; |
| |
| nr = get_var_number(vp); |
| |
| #ifdef FEAT_WINDOWS |
| if (nr == 0) |
| return curwin; |
| |
| for (wp = firstwin; wp != NULL; wp = wp->w_next) |
| if (--nr <= 0) |
| break; |
| return wp; |
| #else |
| if (nr == 0 || nr == 1) |
| return curwin; |
| return NULL; |
| #endif |
| } |
| |
| /* |
| * Translate a String variable into a position. |
| */ |
| static pos_T * |
| var2fpos(varp, lnum) |
| VAR varp; |
| int lnum; /* TRUE when $ is last line */ |
| { |
| char_u *name; |
| static pos_T pos; |
| pos_T *pp; |
| |
| name = get_var_string(varp); |
| if (name[0] == '.') /* cursor */ |
| return &curwin->w_cursor; |
| if (name[0] == '\'') /* mark */ |
| { |
| pp = getmark(name[1], FALSE); |
| if (pp == NULL || pp == (pos_T *)-1 || pp->lnum <= 0) |
| return NULL; |
| return pp; |
| } |
| if (name[0] == '$') /* last column or line */ |
| { |
| if (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; |
| } |
| |
| /* |
| * 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 == *arg) /* no name found */ |
| return 0; |
| |
| len = (int)(p - *arg); |
| *arg = skipwhite(p); |
| |
| return len; |
| } |
| |
| /* |
| * Get the length of the name of a function. |
| * "arg" is advanced to the first non-white character after the name. |
| * Return 0 if something 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_func_len(arg, alias, evaluate) |
| char_u **arg; |
| char_u **alias; |
| int evaluate; |
| { |
| int len; |
| #ifdef FEAT_MAGIC_BRACES |
| char_u *p; |
| char_u *expr_start; |
| char_u *expr_end; |
| #endif |
| |
| *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; |
| } |
| |
| #ifdef FEAT_MAGIC_BRACES |
| /* |
| * Find the end of the name; |
| */ |
| p = find_name_end(*arg, &expr_start, &expr_end); |
| /* check for {} construction */ |
| 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 0; |
| *alias = temp_string; |
| *arg = skipwhite(p); |
| return (int)STRLEN(temp_string); |
| } |
| #endif |
| |
| len += get_id_len(arg); |
| if (len == 0) |
| EMSG2(_(e_invexpr2), *arg); |
| |
| return len; |
| } |
| |
| static char_u * |
| find_name_end(arg, expr_start, expr_end) |
| char_u *arg; |
| char_u **expr_start; |
| char_u **expr_end; |
| { |
| int nesting = 0; |
| char_u *p; |
| |
| *expr_start = NULL; |
| *expr_end = NULL; |
| |
| for (p = arg; (*p != NUL && (eval_isnamec(*p) || nesting != 0)); ++p) |
| { |
| #ifdef FEAT_MAGIC_BRACES |
| if (*p == '{') |
| { |
| nesting++; |
| if (*expr_start == NULL) |
| *expr_start = p; |
| } |
| else if (*p == '}') |
| { |
| nesting--; |
| if (nesting == 0 && *expr_end == NULL) |
| *expr_end = p; |
| } |
| #endif |
| } |
| |
| return p; |
| } |
| |
| /* |
| * Return TRUE if character "c" can be used in a variable or function name. |
| */ |
| static int |
| eval_isnamec(c) |
| int c; |
| { |
| return (ASCII_ISALNUM(c) || c == '_' || c == ':' |
| #ifdef FEAT_MAGIC_BRACES |
| || c == '{' || c == '}' |
| #endif |
| ); |
| } |
| |
| /* |
| * Find a v: variable. |
| * Return it's index, or -1 if not found. |
| */ |
| static int |
| find_vim_var(name, len) |
| char_u *name; |
| int len; /* length of "name" */ |
| { |
| char_u *vname; |
| int vlen; |
| int i; |
| |
| /* |
| * Ignore "v:" for old built-in variables, require it for new ones. |
| */ |
| if (name[0] == 'v' && name[1] == ':') |
| { |
| vname = name + 2; |
| vlen = len - 2; |
| } |
| else |
| { |
| vname = name; |
| vlen = len; |
| } |
| for (i = 0; i < VV_LEN; ++i) |
| if (vlen == vimvars[i].len && STRCMP(vname, vimvars[i].name) == 0 |
| && ((vimvars[i].flags & VV_COMPAT) || vname != name)) |
| return i; |
| return -1; |
| } |
| |
| /* |
| * Set number v: variable to "val". |
| */ |
| void |
| set_vim_var_nr(idx, val) |
| int idx; |
| long val; |
| { |
| vimvars[idx].val = (char_u *)val; |
| } |
| |
| /* |
| * Get number v: variable value; |
| */ |
| long |
| get_vim_var_nr(idx) |
| int idx; |
| { |
| return (long)vimvars[idx].val; |
| } |
| |
| /* |
| * Set v:count, v:count1 and v:prevcount. |
| */ |
| void |
| set_vcount(count, count1) |
| long count; |
| long count1; |
| { |
| vimvars[VV_PREVCOUNT].val = vimvars[VV_COUNT].val; |
| vimvars[VV_COUNT].val = (char_u *)count; |
| vimvars[VV_COUNT1].val = (char_u *)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) */ |
| { |
| vim_free(vimvars[idx].val); |
| if (val == NULL) |
| vimvars[idx].val = NULL; |
| else if (len == -1) |
| vimvars[idx].val = vim_strsave(val); |
| else |
| vimvars[idx].val = vim_strnsave(val, len); |
| } |
| |
| /* |
| * 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].val == NULL || vimvars[VV_REG].val[0] != c) |
| set_vim_var_string(VV_REG, ®name, 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].val; |
| |
| vimvars[VV_EXCEPTION].val = 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].val; |
| |
| vimvars[VV_THROWPOINT].val = 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].val; |
| if (eap != NULL) |
| { |
| if (eap->force_bin == FORCE_BIN) |
| len = 6; |
| else if (eap->force_bin == FORCE_NOBIN) |
| len = 8; |
| else |
| len = 0; |
| 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; |
| # 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->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); |
| # endif |
| vimvars[VV_CMDARG].val = newval; |
| return oldval; |
| } |
| |
| vim_free(oldval); |
| vimvars[VV_CMDARG].val = oldarg; |
| return NULL; |
| } |
| #endif |
| |
| /* |
| * Get the value of internal variable "name". |
| * Return OK or FAIL. |
| */ |
| static int |
| get_var_var(name, len, retvar) |
| char_u *name; |
| int len; /* length of "name" */ |
| VAR retvar; /* NULL when only checking existence */ |
| { |
| int ret = OK; |
| int type = VAR_UNKNOWN; |
| long number = 1; |
| char_u *string = NULL; |
| VAR v; |
| int cc; |
| int i; |
| |
| /* 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) |
| { |
| type = VAR_NUMBER; |
| number = curbuf->b_changedtick; |
| } |
| |
| /* |
| * Check for built-in v: variables. |
| */ |
| else if ((i = find_vim_var(name, len)) >= 0) |
| { |
| type = vimvars[i].type; |
| number = (long)vimvars[i].val; |
| string = vimvars[i].val; |
| } |
| |
| /* |
| * Check for user-defined variables. |
| */ |
| else |
| { |
| v = find_var(name, FALSE); |
| if (v != NULL) |
| { |
| type = v->var_type; |
| number = v->var_val.var_number; |
| string = v->var_val.var_string; |
| } |
| } |
| |
| if (type == VAR_UNKNOWN) |
| { |
| if (retvar != NULL) |
| EMSG2(_("E121: Undefined variable: %s"), name); |
| ret = FAIL; |
| } |
| else if (retvar != NULL) |
| { |
| retvar->var_type = type; |
| if (type == VAR_NUMBER) |
| retvar->var_val.var_number = number; |
| else if (type == VAR_STRING) |
| { |
| if (string != NULL) |
| string = vim_strsave(string); |
| retvar->var_val.var_string = string; |
| } |
| } |
| |
| name[len] = cc; |
| |
| return ret; |
| } |
| |
| /* |
| * Allocate memory for a variable, and make it emtpy (0 or NULL value). |
| */ |
| static VAR |
| alloc_var() |
| { |
| return (VAR)alloc_clear((unsigned)sizeof(var)); |
| } |
| |
| /* |
| * Allocate memory for a variable, 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 VAR |
| alloc_string_var(s) |
| char_u *s; |
| { |
| VAR retvar; |
| |
| retvar = alloc_var(); |
| if (retvar != NULL) |
| { |
| retvar->var_type = VAR_STRING; |
| retvar->var_val.var_string = s; |
| } |
| else |
| vim_free(s); |
| return retvar; |
| } |
| |
| /* |
| * Free the memory for a variable. |
| */ |
| static void |
| free_var(varp) |
| VAR varp; |
| { |
| if (varp != NULL) |
| { |
| if (varp->var_type == VAR_STRING) |
| vim_free(varp->var_val.var_string); |
| vim_free(varp->var_name); |
| vim_free(varp); |
| } |
| } |
| |
| /* |
| * Free the memory for a variable value and set the value to NULL or 0. |
| */ |
| static void |
| clear_var(varp) |
| VAR varp; |
| { |
| if (varp != NULL) |
| { |
| if (varp->var_type == VAR_STRING) |
| { |
| vim_free(varp->var_val.var_string); |
| varp->var_val.var_string = NULL; |
| } |
| else |
| varp->var_val.var_number = 0; |
| } |
| } |
| |
| /* |
| * Get the number value of a variable. |
| * If it is a String variable, uses vim_str2nr(). |
| */ |
| static long |
| get_var_number(varp) |
| VAR varp; |
| { |
| long n; |
| |
| if (varp->var_type == VAR_NUMBER) |
| return (long)(varp->var_val.var_number); |
| else if (varp->var_type == VAR_UNKNOWN || varp->var_val.var_string == NULL) |
| return 0L; |
| else |
| { |
| vim_str2nr(varp->var_val.var_string, NULL, NULL, TRUE, TRUE, &n, NULL); |
| return n; |
| } |
| } |
| |
| /* |
| * Get the lnum from the first argument. Also accepts ".", "$", etc. |
| */ |
| static linenr_T |
| get_var_lnum(argvars) |
| VAR argvars; |
| { |
| var retvar; |
| linenr_T lnum; |
| |
| lnum = get_var_number(&argvars[0]); |
| if (lnum == 0) /* no valid number, try using line() */ |
| { |
| retvar.var_type = VAR_NUMBER; |
| f_line(argvars, &retvar); |
| lnum = retvar.var_val.var_number; |
| clear_var(&retvar); |
| } |
| return lnum; |
| } |
| |
| /* |
| * Get the string value of a variable. |
| * If it is a Number variable, the number is converted into a string. |
| * get_var_string() uses a single, static buffer. YOU CAN ONLY USE IT ONCE! |
| * get_var_string_buf() uses a given buffer. |
| * If the String variable has never been set, return an empty string. |
| * Never returns NULL; |
| */ |
| static char_u * |
| get_var_string(varp) |
| VAR varp; |
| { |
| static char_u mybuf[NUMBUFLEN]; |
| |
| return get_var_string_buf(varp, mybuf); |
| } |
| |
| static char_u * |
| get_var_string_buf(varp, buf) |
| VAR varp; |
| char_u *buf; |
| { |
| if (varp->var_type == VAR_NUMBER) |
| { |
| sprintf((char *)buf, "%ld", (long)varp->var_val.var_number); |
| return buf; |
| } |
| else if (varp->var_val.var_string == NULL) |
| return (char_u *)""; |
| else |
| return varp->var_val.var_string; |
| } |
| |
| /* |
| * Find variable "name" in the list of variables. |
| * Return a pointer to it if found, NULL if not found. |
| */ |
| static VAR |
| find_var(name, writing) |
| char_u *name; |
| int writing; |
| { |
| int i; |
| char_u *varname; |
| garray_T *gap; |
| |
| /* Check for function arguments "a:" */ |
| if (name[0] == 'a' && name[1] == ':') |
| { |
| if (writing) |
| { |
| EMSG2(_(e_readonlyvar), name); |
| return NULL; |
| } |
| name += 2; |
| if (current_funccal == NULL) |
| return NULL; |
| if (VIM_ISDIGIT(*name)) |
| { |
| i = atol((char *)name); |
| if (i == 0) /* a:0 */ |
| return ¤t_funccal->a0_var; |
| i += current_funccal->func->args.ga_len; |
| if (i > current_funccal->argcount) /* a:999 */ |
| return NULL; |
| return &(current_funccal->argvars[i - 1]); /* a:1, a:2, etc. */ |
| } |
| if (STRCMP(name, "firstline") == 0) |
| return &(current_funccal->firstline); |
| if (STRCMP(name, "lastline") == 0) |
| return &(current_funccal->lastline); |
| for (i = 0; i < current_funccal->func->args.ga_len; ++i) |
| if (STRCMP(name, ((char_u **) |
| (current_funccal->func->args.ga_data))[i]) == 0) |
| return &(current_funccal->argvars[i]); /* a:name */ |
| return NULL; |
| } |
| |
| gap = find_var_ga(name, &varname); |
| if (gap == NULL) |
| return NULL; |
| return find_var_in_ga(gap, varname); |
| } |
| |
| static VAR |
| find_var_in_ga(gap, varname) |
| garray_T *gap; |
| char_u *varname; |
| { |
| int i; |
| |
| for (i = gap->ga_len; --i >= 0; ) |
| if (VAR_GAP_ENTRY(i, gap).var_name != NULL |
| && STRCMP(VAR_GAP_ENTRY(i, gap).var_name, varname) == 0) |
| break; |
| if (i < 0) |
| return NULL; |
| return &VAR_GAP_ENTRY(i, gap); |
| } |
| |
| /* |
| * Find the growarray and start of name without ':' for a variable name. |
| */ |
| static garray_T * |
| find_var_ga(name, varname) |
| char_u *name; |
| char_u **varname; |
| { |
| if (name[1] != ':') |
| { |
| /* If not "x:name" there must not be any ":" in the name. */ |
| if (vim_strchr(name, ':') != NULL) |
| return NULL; |
| *varname = name; |
| if (current_funccal == NULL) |
| return &variables; /* global variable */ |
| return ¤t_funccal->l_vars; /* local function variable */ |
| } |
| *varname = name + 2; |
| if (*name == 'b') /* buffer variable */ |
| return &curbuf->b_vars; |
| if (*name == 'w') /* window variable */ |
| return &curwin->w_vars; |
| if (*name == 'g') /* global variable */ |
| return &variables; |
| if (*name == 'l' && current_funccal != NULL)/* local function variable */ |
| return ¤t_funccal->l_vars; |
| if (*name == 's' /* script variable */ |
| && current_SID > 0 && current_SID <= ga_scripts.ga_len) |
| return &SCRIPT_VARS(current_SID); |
| return NULL; |
| } |
| |
| /* |
| * Get the string value of a (global/local) variable. |
| * Returns NULL when it doesn't exist. |
| */ |
| char_u * |
| get_var_value(name) |
| char_u *name; |
| { |
| VAR v; |
| |
| v = find_var(name, FALSE); |
| if (v == NULL) |
| return NULL; |
| return get_var_string(v); |
| } |
| |
| /* |
| * Allocate a new growarry 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; |
| { |
| if (ga_grow(&ga_scripts, (int)(id - ga_scripts.ga_len)) == OK) |
| { |
| while (ga_scripts.ga_len < id) |
| { |
| var_init(&SCRIPT_VARS(ga_scripts.ga_len + 1)); |
| ++ga_scripts.ga_len; |
| --ga_scripts.ga_room; |
| } |
| } |
| } |
| |
| /* |
| * Initialize internal variables for use. |
| */ |
| void |
| var_init(gap) |
| garray_T *gap; |
| { |
| ga_init2(gap, (int)sizeof(var), 4); |
| } |
| |
| /* |
| * Clean up a list of internal variables. |
| */ |
| void |
| var_clear(gap) |
| garray_T *gap; |
| { |
| int i; |
| |
| for (i = gap->ga_len; --i >= 0; ) |
| var_free_one(&VAR_GAP_ENTRY(i, gap)); |
| ga_clear(gap); |
| } |
| |
| static void |
| var_free_one(v) |
| VAR v; |
| { |
| vim_free(v->var_name); |
| v->var_name = NULL; |
| if (v->var_type == VAR_STRING) |
| vim_free(v->var_val.var_string); |
| v->var_val.var_string = NULL; |
| } |
| |
| /* |
| * List the value of one internal variable. |
| */ |
| static void |
| list_one_var(v, prefix) |
| VAR v; |
| char_u *prefix; |
| { |
| list_one_var_a(prefix, v->var_name, v->var_type, get_var_string(v)); |
| } |
| |
| /* |
| * List the value of one "v:" variable. |
| */ |
| static void |
| list_vim_var(i) |
| int i; /* index in vimvars[] */ |
| { |
| char_u *p; |
| char_u numbuf[NUMBUFLEN]; |
| |
| if (vimvars[i].type == VAR_NUMBER) |
| { |
| p = numbuf; |
| sprintf((char *)p, "%ld", (long)vimvars[i].val); |
| } |
| else if (vimvars[i].val == NULL) |
| p = (char_u *)""; |
| else |
| p = vimvars[i].val; |
| list_one_var_a((char_u *)"v:", (char_u *)vimvars[i].name, |
| vimvars[i].type, p); |
| } |
| |
| static void |
| list_one_var_a(prefix, name, type, string) |
| char_u *prefix; |
| char_u *name; |
| int type; |
| char_u *string; |
| { |
| msg_attr(prefix, 0); /* don't use msg(), it overwrites "v:statusmsg" */ |
| 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 |
| msg_putchar(' '); |
| msg_outtrans(string); |
| } |
| |
| /* |
| * Set variable "name" to value in "varp". |
| * If the variable already exists, the value is updated. |
| * Otherwise the variable is created. |
| */ |
| static void |
| set_var(name, varp) |
| char_u *name; |
| VAR varp; |
| { |
| int i; |
| VAR v; |
| char_u *varname; |
| garray_T *gap; |
| |
| /* |
| * Handle setting internal v: variables. |
| */ |
| i = find_vim_var(name, (int)STRLEN(name)); |
| if (i >= 0) |
| { |
| if (vimvars[i].flags & VV_RO) |
| EMSG2(_(e_readonlyvar), name); |
| else |
| { |
| if (vimvars[i].type == VAR_STRING) |
| { |
| vim_free(vimvars[i].val); |
| vimvars[i].val = vim_strsave(get_var_string(varp)); |
| } |
| else |
| vimvars[i].val = (char_u *)(long)varp->var_val.var_number; |
| } |
| return; |
| } |
| |
| v = find_var(name, TRUE); |
| if (v != NULL) /* existing variable, only need to free string */ |
| { |
| if (v->var_type == VAR_STRING) |
| vim_free(v->var_val.var_string); |
| } |
| else /* add a new variable */ |
| { |
| gap = find_var_ga(name, &varname); |
| if (gap == NULL) /* illegal name */ |
| { |
| EMSG2(_("E461: Illegal variable name: %s"), name); |
| return; |
| } |
| |
| /* Try to use an empty entry */ |
| for (i = gap->ga_len; --i >= 0; ) |
| if (VAR_GAP_ENTRY(i, gap).var_name == NULL) |
| break; |
| if (i < 0) /* need to allocate more room */ |
| { |
| if (ga_grow(gap, 1) == FAIL) |
| return; |
| i = gap->ga_len; |
| } |
| v = &VAR_GAP_ENTRY(i, gap); |
| if ((v->var_name = vim_strsave(varname)) == NULL) |
| return; |
| if (i == gap->ga_len) |
| { |
| ++gap->ga_len; |
| --gap->ga_room; |
| } |
| } |
| copy_var(varp, v); |
| } |
| |
| static void |
| copy_var(from, to) |
| VAR from; |
| VAR to; |
| { |
| to->var_type = from->var_type; |
| if (from->var_type == VAR_STRING) |
| to->var_val.var_string = vim_strsave(get_var_string(from)); |
| else |
| to->var_val.var_number = from->var_val.var_number; |
| } |
| |
| /* |
| * ":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; |
| var retvar; |
| char_u *p; |
| int needclr = TRUE; |
| int atstart = TRUE; |
| |
| if (eap->skip) |
| ++emsg_skip; |
| while (*arg != NUL && *arg != '|' && *arg != '\n' && !got_int) |
| { |
| p = arg; |
| if (eval1(&arg, &retvar, !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); |
| break; |
| } |
| 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) |
| msg_start(); |
| } |
| else if (eap->cmdidx == CMD_echo) |
| msg_puts_attr((char_u *)" ", echo_attr); |
| for (p = get_var_string(&retvar); *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_check)(p); |
| |
| (void)msg_outtrans_len_attr(p, i, echo_attr); |
| p += i - 1; |
| } |
| else |
| #endif |
| (void)msg_outtrans_len_attr(p, 1, echo_attr); |
| } |
| } |
| clear_var(&retvar); |
| 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; |
| var retvar; |
| 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, &retvar, !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_var_string(&retvar); |
| len = (int)STRLEN(p); |
| if (ga_grow(&ga, len + 2) == FAIL) |
| { |
| clear_var(&retvar); |
| ret = FAIL; |
| break; |
| } |
| if (ga.ga_len) |
| { |
| ((char_u *)(ga.ga_data))[ga.ga_len++] = ' '; |
| --ga.ga_room; |
| } |
| STRCPY((char_u *)(ga.ga_data) + ga.ga_len, p); |
| ga.ga_room -= len; |
| ga.ga_len += len; |
| } |
| |
| clear_var(&retvar); |
| arg = skipwhite(arg); |
| } |
| |
| if (ret != FAIL && ga.ga_data != NULL) |
| { |
| if (eap->cmdidx == CMD_echomsg) |
| MSG_ATTR(ga.ga_data, echo_attr); |
| 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 j; |
| int c; |
| #ifdef FEAT_MAGIC_BRACES |
| int saved_did_emsg; |
| #endif |
| char_u *name = NULL; |
| char_u *p; |
| char_u *arg; |
| 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; |
| static char_u e_funcexts[] = N_("E122: Function %s already exists, add ! to replace it"); |
| |
| /* |
| * ":function" without argument: list functions. |
| */ |
| if (ends_excmd(*eap->arg)) |
| { |
| if (!eap->skip) |
| for (fp = firstfunc; fp != NULL && !got_int; fp = fp->next) |
| list_func_head(fp, FALSE); |
| eap->nextcmd = check_nextcmd(eap->arg); |
| return; |
| } |
| |
| p = eap->arg; |
| name = trans_function_name(&p, eap->skip, FALSE); |
| if (name == NULL && !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()) |
| return; |
| else |
| eap->skip = TRUE; |
| } |
| #ifdef FEAT_MAGIC_BRACES |
| /* 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; |
| #endif |
| |
| /* |
| * ":function func" with only function name: list function. |
| */ |
| if (vim_strchr(p, '(') == NULL) |
| { |
| if (!ends_excmd(*skipwhite(p))) |
| { |
| EMSG(_(e_trailing)); |
| goto erret_name; |
| } |
| 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->lines.ga_len && !got_int; ++j) |
| { |
| msg_putchar('\n'); |
| msg_outnum((long)(j + 1)); |
| if (j < 9) |
| msg_putchar(' '); |
| if (j < 99) |
| msg_putchar(' '); |
| msg_prt_line(FUNCLINE(fp, j)); |
| out_flush(); /* show a line at a time */ |
| ui_breakcheck(); |
| } |
| if (!got_int) |
| { |
| msg_putchar('\n'); |
| msg_puts((char_u *)" endfunction"); |
| } |
| } |
| else |
| EMSG2(_("E123: Undefined function: %s"), eap->arg); |
| } |
| goto erret_name; |
| } |
| |
| /* |
| * ":function name(arg1, arg2)" Define function. |
| */ |
| p = skipwhite(p); |
| if (*p != '(') |
| { |
| if (!eap->skip) |
| { |
| EMSG2(_("E124: Missing '(': %s"), eap->arg); |
| goto erret_name; |
| } |
| /* 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); |
| |
| /* |
| * 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; |
| ((char_u **)(newargs.ga_data))[newargs.ga_len] = arg; |
| *p = c; |
| newargs.ga_len++; |
| newargs.ga_room--; |
| if (*p == ',') |
| ++p; |
| else |
| mustend = TRUE; |
| } |
| p = skipwhite(p); |
| if (mustend && *p != ')') |
| { |
| if (!eap->skip) |
| EMSG2(_(e_invarg2), eap->arg); |
| break; |
| } |
| } |
| ++p; /* skip the ')' */ |
| |
| /* find extra arguments "range" and "abort" */ |
| for (;;) |
| { |
| p = skipwhite(p); |
| if (STRNCMP(p, "range", 5) == 0) |
| { |
| flags |= FC_RANGE; |
| p += 5; |
| } |
| else if (STRNCMP(p, "abort", 5) == 0) |
| { |
| flags |= FC_ABORT; |
| p += 5; |
| } |
| else |
| break; |
| } |
| |
| if (*p != NUL && *p != '"' && *p != '\n' && !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 && find_func(name) != NULL) |
| EMSG2(_(e_funcexts), name); |
| |
| msg_putchar('\n'); /* don't overwrite the function name */ |
| cmdline_row = msg_row; |
| } |
| |
| indent = 2; |
| nesting = 0; |
| for (;;) |
| { |
| msg_scroll = TRUE; |
| need_wait_return = FALSE; |
| 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; |
| } |
| |
| 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" (should be more strict...). */ |
| if (STRNCMP(p, "endf", 4) == 0 && nesting-- == 0) |
| { |
| vim_free(theline); |
| break; |
| } |
| |
| /* Increase indent inside "if", "while", 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, "try", 3) == 0) |
| indent += 2; |
| |
| /* Check for defining a function inside this function. */ |
| if (STRNCMP(p, "fu", 2) == 0) |
| { |
| p = skipwhite(skiptowhite(p)); |
| p += eval_fname_script(p); |
| if (ASCII_ISALPHA(*p)) |
| { |
| vim_free(trans_function_name(&p, TRUE, FALSE)); |
| 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] == '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) == FAIL) |
| goto erret; |
| ((char_u **)(newlines.ga_data))[newlines.ga_len] = theline; |
| newlines.ga_len++; |
| newlines.ga_room--; |
| } |
| |
| /* 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 |
| */ |
| fp = find_func(name); |
| if (fp != NULL) |
| { |
| if (!eap->forceit) |
| { |
| EMSG2(_(e_funcexts), name); |
| goto erret; |
| } |
| if (fp->calls) |
| { |
| EMSG2(_("E127: Cannot redefine function %s: It is in use"), name); |
| goto erret; |
| } |
| /* redefine existing function */ |
| ga_clear_strings(&(fp->args)); |
| ga_clear_strings(&(fp->lines)); |
| vim_free(name); |
| } |
| else |
| { |
| fp = (ufunc_T *)alloc((unsigned)sizeof(ufunc_T)); |
| if (fp == NULL) |
| goto erret; |
| /* insert the new function in the function list */ |
| fp->next = firstfunc; |
| firstfunc = fp; |
| fp->name = name; |
| } |
| fp->args = newargs; |
| fp->lines = newlines; |
| fp->varargs = varargs; |
| fp->flags = flags; |
| fp->calls = 0; |
| fp->script_ID = current_SID; |
| #ifdef FEAT_MAGIC_BRACES |
| did_emsg |= saved_did_emsg; |
| #endif |
| vim_free(skip_until); |
| return; |
| |
| erret: |
| vim_free(skip_until); |
| ga_clear_strings(&newargs); |
| ga_clear_strings(&newlines); |
| erret_name: |
| vim_free(name); |
| #ifdef FEAT_MAGIC_BRACES |
| did_emsg |= saved_did_emsg; |
| #endif |
| } |
| |
| /* |
| * Get a function name, translating "<SID>" and "<SNR>". |
| * Returns the function name in allocated memory, or NULL for failure. |
| * Advances "pp" to just after the function name (if no error). |
| */ |
| static char_u * |
| trans_function_name(pp, skip, internal) |
| char_u **pp; |
| int skip; /* only find the end, don't evaluate */ |
| int internal; /* TRUE if internal function name OK */ |
| { |
| char_u *name; |
| char_u *start; |
| char_u *end; |
| int lead; |
| char_u sid_buf[20]; |
| char_u *temp_string = NULL; |
| char_u *expr_start, *expr_end; |
| int len; |
| |
| /* A name starting with "<SID>" or "<SNR>" is local to a script. */ |
| start = *pp; |
| lead = eval_fname_script(start); |
| if (lead > 0) |
| start += lead; |
| end = find_name_end(start, &expr_start, &expr_end); |
| if (end == start) |
| { |
| if (!skip) |
| EMSG(_("E129: Function name required")); |
| return NULL; |
| } |
| #ifdef FEAT_MAGIC_BRACES |
| if (expr_start != NULL && !skip) |
| { |
| /* expand magic curlies */ |
| temp_string = make_expanded_name(start, expr_start, expr_end, end); |
| if (temp_string == 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()) |
| EMSG2(_(e_invarg2), start); |
| else |
| *pp = end; |
| return NULL; |
| } |
| start = temp_string; |
| len = (int)STRLEN(temp_string); |
| } |
| else |
| #endif |
| len = (int)(end - start); |
| |
| /* |
| * 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 (eval_fname_sid(*pp)) /* If it's "<SID>" */ |
| { |
| if (current_SID <= 0) |
| { |
| EMSG(_(e_usingsid)); |
| return NULL; |
| } |
| sprintf((char *)sid_buf, "%ld_", (long)current_SID); |
| lead += (int)STRLEN(sid_buf); |
| } |
| } |
| else if (!internal && !ASCII_ISUPPER(*start)) |
| { |
| EMSG2(_("E128: Function name must start with a capital: %s"), start); |
| return NULL; |
| } |
| 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 (eval_fname_sid(*pp)) /* If it's "<SID>" */ |
| STRCPY(name + 3, sid_buf); |
| } |
| mch_memmove(name + lead, start, (size_t)len); |
| name[len + lead] = NUL; |
| } |
| *pp = end; |
| |
| vim_free(temp_string); |
| 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; |
| { |
| if (p[0] == '<' && (STRNICMP(p + 1, "SID>", 4) == 0 |
| || 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->name[0] == K_SPECIAL) |
| { |
| MSG_PUTS_ATTR("<SNR>", hl_attr(HLF_8)); |
| msg_puts(fp->name + 3); |
| } |
| else |
| msg_puts(fp->name); |
| msg_putchar('('); |
| for (j = 0; j < fp->args.ga_len; ++j) |
| { |
| if (j) |
| MSG_PUTS(", "); |
| msg_puts(FUNCARG(fp, j)); |
| } |
| if (fp->varargs) |
| { |
| if (j) |
| MSG_PUTS(", "); |
| MSG_PUTS("..."); |
| } |
| msg_putchar(')'); |
| } |
| |
| /* |
| * 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; |
| { |
| ufunc_T *fp; |
| |
| for (fp = firstfunc; fp != NULL; fp = fp->next) |
| if (STRCMP(name, fp->name) == 0) |
| break; |
| return fp; |
| } |
| |
| #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 ufunc_T *fp = NULL; |
| |
| if (idx == 0) |
| fp = firstfunc; |
| if (fp != NULL) |
| { |
| if (STRLEN(fp->name) + 4 >= IOSIZE) |
| return fp->name; /* prevents overflow */ |
| |
| cat_func_name(IObuff, fp); |
| if (xp->xp_context != EXPAND_USER_FUNC) |
| { |
| STRCAT(IObuff, "("); |
| if (!fp->varargs && fp->args.ga_len == 0) |
| STRCAT(IObuff, ")"); |
| } |
| |
| fp = fp->next; |
| 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->name[0] == K_SPECIAL) |
| { |
| STRCPY(buf, "<SNR>"); |
| STRCAT(buf, fp->name + 3); |
| } |
| else |
| STRCPY(buf, fp->name); |
| } |
| |
| /* |
| * ":delfunction {name}" |
| */ |
| void |
| ex_delfunction(eap) |
| exarg_T *eap; |
| { |
| ufunc_T *fp = NULL, *pfp; |
| char_u *p; |
| char_u *name; |
| |
| p = eap->arg; |
| name = trans_function_name(&p, eap->skip, FALSE); |
| if (name == NULL) |
| 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(_("E130: Undefined function: %s"), eap->arg); |
| return; |
| } |
| if (fp->calls) |
| { |
| EMSG2(_("E131: Cannot delete function %s: It is in use"), eap->arg); |
| return; |
| } |
| |
| /* clear this function */ |
| vim_free(fp->name); |
| ga_clear_strings(&(fp->args)); |
| ga_clear_strings(&(fp->lines)); |
| |
| /* remove the function from the function list */ |
| if (firstfunc == fp) |
| firstfunc = fp->next; |
| else |
| { |
| for (pfp = firstfunc; pfp != NULL; pfp = pfp->next) |
| if (pfp->next == fp) |
| { |
| pfp->next = fp->next; |
| break; |
| } |
| } |
| vim_free(fp); |
| } |
| } |
| |
| /* |
| * Call a user function. |
| */ |
| static void |
| call_user_func(fp, argcount, argvars, retvar, firstline, lastline) |
| ufunc_T *fp; /* pointer to function */ |
| int argcount; /* nr of args */ |
| VAR argvars; /* arguments */ |
| VAR retvar; /* return value */ |
| linenr_T firstline; /* first line of range */ |
| linenr_T lastline; /* last line of range */ |
| { |
| char_u *save_sourcing_name; |
| linenr_T save_sourcing_lnum; |
| scid_T save_current_SID; |
| struct funccall fc; |
| struct funccall *save_fcp = current_funccal; |
| int save_did_emsg; |
| static int depth = 0; |
| |
| /* 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'")); |
| retvar->var_type = VAR_NUMBER; |
| retvar->var_val.var_number = -1; |
| return; |
| } |
| ++depth; |
| |
| line_breakcheck(); /* check for CTRL-C hit */ |
| |
| /* set local variables */ |
| var_init(&fc.l_vars); |
| fc.func = fp; |
| fc.argcount = argcount; |
| fc.argvars = argvars; |
| fc.retvar = retvar; |
| retvar->var_val.var_number = 0; |
| fc.linenr = 0; |
| fc.returned = FALSE; |
| fc.level = ex_nesting_level; |
| fc.a0_var.var_type = VAR_NUMBER; |
| fc.a0_var.var_val.var_number = argcount - fp->args.ga_len; |
| fc.a0_var.var_name = NULL; |
| current_funccal = &fc; |
| fc.firstline.var_type = VAR_NUMBER; |
| fc.firstline.var_val.var_number = firstline; |
| fc.firstline.var_name = NULL; |
| fc.lastline.var_type = VAR_NUMBER; |
| fc.lastline.var_val.var_number = lastline; |
| fc.lastline.var_name = NULL; |
| /* Check if this function has a breakpoint. */ |
| fc.breakpoint = dbg_find_breakpoint(FALSE, fp->name, (linenr_T)0); |
| fc.dbg_tick = debug_tick; |
| |
| /* Don't redraw while executing the function. */ |
| ++RedrawingDisabled; |
| save_sourcing_name = sourcing_name; |
| save_sourcing_lnum = sourcing_lnum; |
| sourcing_lnum = 1; |
| sourcing_name = alloc((unsigned)((save_sourcing_name == NULL ? 0 |
| : STRLEN(save_sourcing_name)) + STRLEN(fp->name) + 13)); |
| if (sourcing_name != NULL) |
| { |
| if (save_sourcing_name != NULL |
| && STRNCMP(save_sourcing_name, "function ", 9) == 0) |
| sprintf((char *)sourcing_name, "%s..", save_sourcing_name); |
| else |
| STRCPY(sourcing_name, "function "); |
| cat_func_name(sourcing_name + STRLEN(sourcing_name), fp); |
| |
| if (p_verbose >= 12) |
| { |
| ++no_wait_return; |
| msg_scroll = TRUE; /* always scroll up, don't overwrite */ |
| msg_str((char_u *)_("calling %s"), sourcing_name); |
| if (p_verbose >= 14) |
| { |
| int i; |
| char_u buf[MSG_BUF_LEN]; |
| |
| msg_puts((char_u *)"("); |
| for (i = 0; i < argcount; ++i) |
| { |
| if (i > 0) |
| msg_puts((char_u *)", "); |
| if (argvars[i].var_type == VAR_NUMBER) |
| msg_outnum((long)argvars[i].var_val.var_number); |
| else |
| { |
| trunc_string(get_var_string(&argvars[i]), |
| buf, MSG_BUF_LEN); |
| msg_puts((char_u *)"\""); |
| msg_puts(buf); |
| msg_puts((char_u *)"\""); |
| } |
| } |
| msg_puts((char_u *)")"); |
| } |
| msg_puts((char_u *)"\n"); /* don't overwrite this either */ |
| cmdline_row = msg_row; |
| --no_wait_return; |
| } |
| } |
| save_current_SID = current_SID; |
| current_SID = fp->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->flags & FC_ABORT)) || retvar->var_type == VAR_UNKNOWN) |
| { |
| clear_var(retvar); |
| retvar->var_type = VAR_NUMBER; |
| retvar->var_val.var_number = -1; |
| } |
| |
| /* when being verbose, mention the return value */ |
| if (p_verbose >= 12) |
| { |
| char_u *sn, *val; |
| |
| ++no_wait_return; |
| msg_scroll = TRUE; /* always scroll up, don't overwrite */ |
| |
| /* Make sure the output fits in IObuff. */ |
| sn = sourcing_name; |
| if (STRLEN(sourcing_name) > IOSIZE / 2 - 50) |
| sn = sourcing_name + STRLEN(sourcing_name) - (IOSIZE / 2 - 50); |
| |
| if (aborting()) |
| smsg((char_u *)_("%s aborted"), sn); |
| else if (fc.retvar->var_type == VAR_NUMBER) |
| smsg((char_u *)_("%s returning #%ld"), sn, |
| (long)fc.retvar->var_val.var_number); |
| else if (fc.retvar->var_type == VAR_STRING) |
| { |
| val = get_var_string(fc.retvar); |
| if (STRLEN(val) > IOSIZE / 2 - 50) |
| val = val + STRLEN(val) - (IOSIZE / 2 - 50); |
| smsg((char_u *)_("%s returning \"%s\""), sn, val); |
| } |
| msg_puts((char_u *)"\n"); /* don't overwrite this either */ |
| cmdline_row = msg_row; |
| --no_wait_return; |
| } |
| |
| vim_free(sourcing_name); |
| sourcing_name = save_sourcing_name; |
| sourcing_lnum = save_sourcing_lnum; |
| current_SID = save_current_SID; |
| |
| if (p_verbose >= 12 && sourcing_name != NULL) |
| { |
| ++no_wait_return; |
| msg_scroll = TRUE; /* always scroll up, don't overwrite */ |
| msg_str((char_u *)_("continuing in %s"), sourcing_name); |
| msg_puts((char_u *)"\n"); /* don't overwrite this either */ |
| cmdline_row = msg_row; |
| --no_wait_return; |
| } |
| |
| did_emsg |= save_did_emsg; |
| current_funccal = save_fcp; |
| |
| var_clear(&fc.l_vars); /* free all local variables */ |
| --depth; |
| } |
| |
| /* |
| * ":return [expr]" |
| */ |
| void |
| ex_return(eap) |
| exarg_T *eap; |
| { |
| char_u *arg = eap->arg; |
| var retvar; |
| 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, &retvar, &eap->nextcmd, !eap->skip) != FAIL) |
| { |
| if (!eap->skip) |
| returning = do_return(eap, FALSE, TRUE, &retvar); |
| else |
| clear_var(&retvar); |
| } |
| /* 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. "value" may point to a variable |
| * with the return value. Returns TRUE when the return can be carried out, |
| * FALSE when the return gets pending. |
| */ |
| int |
| do_return(eap, reanimate, is_cmd, value) |
| exarg_T *eap; |
| int reanimate; |
| int is_cmd; |
| void *value; |
| { |
| 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. "value" points to an |
| * allocated variable with the value of the original ":return"'s |
| * argument if present or is NULL else. */ |
| cstack->cs_retvar[idx] = value; |
| else |
| { |
| /* When undoing a return in order to make it pending, get the stored |
| * return value. */ |
| if (reanimate) |
| value = current_funccal->retvar; |
| |
| if (value != NULL) |
| { |
| /* Store the value of the pending return. */ |
| if ((cstack->cs_retvar[idx] = alloc_var()) != NULL) |
| *(VAR)cstack->cs_retvar[idx] = *(VAR)value; |
| else |
| EMSG(_(e_outofmem)); |
| } |
| else |
| cstack->cs_retvar[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->retvar->var_type = VAR_NUMBER; |
| current_funccal->retvar->var_val.var_number = 0; |
| } |
| } |
| report_make_pending(CSTP_RETURN, value); |
| } |
| 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 && value != NULL) |
| { |
| clear_var(current_funccal->retvar); |
| *current_funccal->retvar = *(VAR)value; |
| if (!is_cmd) |
| vim_free(value); |
| } |
| } |
| |
| return idx < 0; |
| } |
| |
| /* |
| * Free the variable with a pending return value. |
| */ |
| void |
| discard_pending_return(retvar) |
| void *retvar; |
| { |
| /* The variable was copied from one with an undefined var_name. So we can't |
| * use free_var() to clear and free it. */ |
| clear_var((VAR)retvar); |
| vim_free(retvar); |
| } |
| |
| /* |
| * Generate a return command for producing the value of "retvar". The result |
| * is an allocated string. Used by report_pending() for verbose messages. |
| */ |
| char_u * |
| get_return_cmd(retvar) |
| void *retvar; |
| { |
| char_u *s = IObuff; |
| |
| if (retvar == NULL || ((VAR)retvar)->var_type == VAR_UNKNOWN) |
| s = (char_u *)":return"; |
| else if (((VAR)retvar)->var_type == VAR_STRING) |
| sprintf((char *)IObuff, ":return \"%s\"", |
| ((VAR)retvar)->var_val.var_string); |
| else |
| sprintf((char *)IObuff, ":return %ld", |
| (long)(((VAR)retvar)->var_val.var_number)); |
| return vim_strsave(s); |
| } |
| |
| /* |
| * Get next function line. |
| * Called by do_cmdline() to get the next line. |
| * Returns allocated string, or NULL for end of function. |
| */ |
| /* ARGSUSED */ |
| char_u * |
| get_func_line(c, cookie, indent) |
| int c; /* not used */ |
| void *cookie; |
| int indent; /* not used */ |
| { |
| struct funccall *fcp = (struct funccall *)cookie; |
| 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, fcp->func->name, |
| sourcing_lnum); |
| fcp->dbg_tick = debug_tick; |
| } |
| |
| gap = &fcp->func->lines; |
| if ((fcp->func->flags & FC_ABORT) && did_emsg && !aborted_in_try()) |
| retval = NULL; |
| else if (fcp->returned || fcp->linenr >= gap->ga_len) |
| retval = NULL; |
| else |
| { |
| retval = vim_strsave(((char_u **)(gap->ga_data))[fcp->linenr++]); |
| sourcing_lnum = fcp->linenr; |
| } |
| |
| /* Did we encounter a breakpoint? */ |
| if (fcp->breakpoint != 0 && fcp->breakpoint <= sourcing_lnum) |
| { |
| dbg_breakpoint(fcp->func->name, sourcing_lnum); |
| /* Find next breakpoint. */ |
| fcp->breakpoint = dbg_find_breakpoint(FALSE, fcp->func->name, |
| sourcing_lnum); |
| fcp->dbg_tick = debug_tick; |
| } |
| |
| return retval; |
| } |
| |
| /* |
| * Return TRUE if the currently active function should be ended, because a |
| * return was encountered or an error occured. Used inside a ":while". |
| */ |
| int |
| func_has_ended(cookie) |
| void *cookie; |
| { |
| struct funccall *fcp = (struct funccall *)cookie; |
| |
| /* Ignore the "abort" flag if the abortion behavior has been changed due to |
| * an error inside a try conditional. */ |
| return (((fcp->func->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 ((struct funccall *)cookie)->func->flags & FC_ABORT; |
| } |
| |
| #if defined(FEAT_VIMINFO) || defined(FEAT_SESSION) |
| typedef enum |
| { |
| VAR_FLAVOUR_DEFAULT, |
| VAR_FLAVOUR_SESSION, |
| VAR_FLAVOUR_VIMINFO |
| } 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 is_string = FALSE; |
| VAR varp = NULL; |
| char_u *val; |
| |
| if (!writing && (find_viminfo_parameter('!') != NULL)) |
| { |
| tab = vim_strchr(virp->vir_line + 1, '\t'); |
| if (tab != NULL) |
| { |
| *tab++ = '\0'; /* isolate the variable name */ |
| if (*tab == 'S') /* string var */ |
| is_string = TRUE; |
| |
| tab = vim_strchr(tab, '\t'); |
| if (tab != NULL) |
| { |
| /* create a nameless variable to hold the value */ |
| if (is_string) |
| { |
| val = viminfo_readstring(virp, |
| (int)(tab - virp->vir_line + 1), TRUE); |
| if (val != NULL) |
| varp = alloc_string_var(val); |
| } |
| else |
| { |
| varp = alloc_var(); |
| if (varp != NULL) |
| { |
| varp->var_type = VAR_NUMBER; |
| varp->var_val.var_number = atol((char *)tab + 1); |
| } |
| } |
| /* assign the value to the variable */ |
| if (varp != NULL) |
| { |
| set_var(virp->vir_line + 1, varp); |
| free_var(varp); |
| } |
| } |
| } |
| } |
| |
| return viminfo_readline(virp); |
| } |
| |
| /* |
| * Write global vars that start with a capital to the viminfo file |
| */ |
| void |
| write_viminfo_varlist(fp) |
| FILE *fp; |
| { |
| garray_T *gap = &variables; /* global variable */ |
| VAR this_var; |
| int i; |
| |
| if (find_viminfo_parameter('!') == NULL) |
| return; |
| |
| fprintf(fp, _("\n# global variables:\n")); |
| for (i = gap->ga_len; --i >= 0; ) |
| { |
| this_var = &VAR_GAP_ENTRY(i, gap); |
| if (this_var->var_name != NULL |
| && var_flavour(this_var->var_name) == VAR_FLAVOUR_VIMINFO) |
| { |
| fprintf(fp, "!%s\t%s\t", this_var->var_name, |
| (this_var->var_type == VAR_STRING) ? "STR" : "NUM"); |
| viminfo_writestring(fp, get_var_string(this_var)); |
| } |
| } |
| } |
| #endif |
| |
| #if defined(FEAT_SESSION) || defined(PROTO) |
| int |
| store_session_globals(fd) |
| FILE *fd; |
| { |
| garray_T *gap = &variables; /* global variable */ |
| VAR this_var; |
| int i; |
| char_u *p, *t; |
| |
| for (i = gap->ga_len; --i >= 0; ) |
| { |
| this_var = &VAR_GAP_ENTRY(i, gap); |
| if (this_var->var_name != NULL) |
| { |
| if (var_flavour(this_var->var_name) == VAR_FLAVOUR_SESSION) |
| { |
| /* Escapse special characters with a backslash. Turn a LF and |
| * CR into \n and \r. */ |
| p = vim_strsave_escaped(get_var_string(this_var), |
| (char_u *)"\\\"\n\r"); |
| if (p == NULL) /* out of memory */ |
| continue; |
| 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->var_name, |
| (this_var->var_type == VAR_STRING) ? '"' : ' ', |
| p, |
| (this_var->var_type == VAR_STRING) ? '"' : ' ') < 0) |
| || put_eol(fd) == FAIL) |
| { |
| vim_free(p); |
| return FAIL; |
| } |
| vim_free(p); |
| } |
| |
| } |
| } |
| return OK; |
| } |
| #endif |
| |
| #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 pathname of a file. |
| * Returns 1 on success. *fnamelen is 0 for nonexistant path. |
| */ |
| 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 0; |
| |
| vim_free(*bufp); |
| *fnamep = *bufp = newbuf; |
| |
| l = GetShortPathName(*fnamep,*fnamep,l+1); |
| |
| /* Really should always succeed, as the buffer is big enough */ |
| } |
| |
| *fnamelen = l; |
| return 1; |
| } |
| |
| /* |
| * Create a short path name. Returns the length of the buffer it needs. |
| * Doesn't copy over the end of the buffer passed in. |
| */ |
| static int |
| shortpath_for_invalid_fname(fname, bufp, fnamelen) |
| char_u **fname; |
| char_u **bufp; |
| int *fnamelen; |
| { |
| char_u *s, *p, *pbuf2, *pbuf3; |
| char_u ch; |
| int l,len,len2,plen,slen; |
| |
| /* Make a copy */ |
| len2 = *fnamelen; |
| pbuf2 = vim_strnsave(*fname, len2); |
| pbuf3 = NULL; |
| |
| s = pbuf2 + len2 - 1; /* Find the end */ |
| slen = 1; |
| plen = len2; |
| |
| l = 0; |
| if (vim_ispathsep(*s)) |
| { |
| --s; |
| ++slen; |
| --plen; |
| } |
| |
| do |
| { |
| /* Go back one path-seperator */ |
| while (s > pbuf2 && !vim_ispathsep(*s)) |
| { |
| --s; |
| ++slen; |
| --plen; |
| } |
| if (s <= pbuf2) |
| break; |
| |
| /* Remeber the character that is about to be blatted */ |
| ch = *s; |
| *s = 0; /* get_short_pathname requires a null-terminated string */ |
| |
| /* Try it in situ */ |
| p = pbuf2; |
| if (!get_short_pathname(&p, &pbuf3, &plen)) |
| { |
| vim_free(pbuf2); |
| return -1; |
| } |
| *s = ch; /* Preserve the string */ |
| } while (plen == 0); |
| |
| if (plen > 0) |
| { |
| /* Remeber the length of the new string. */ |
| *fnamelen = len = plen + slen; |
| vim_free(*bufp); |
| if (len > len2) |
| { |
| /* If there's not enough space in the currently allocated string, |
| * then copy it to a buffer big enough. |
| */ |
| *fname= *bufp = vim_strnsave(p, len); |
| if (*fname == NULL) |
| return -1; |
| } |
| else |
| { |
| /* Transfer pbuf2 to being the main buffer (it's big enough) */ |
| *fname = *bufp = pbuf2; |
| if (p != pbuf2) |
| strncpy(*fname, p, plen); |
| pbuf2 = NULL; |
| } |
| /* Concat the next bit */ |
| strncpy(*fname + plen, s, slen); |
| (*fname)[len] = '\0'; |
| } |
| vim_free(pbuf3); |
| vim_free(pbuf2); |
| return 0; |
| } |
| |
| /* |
| * Get a pathname for a partial path. |
| */ |
| 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 seperators from the RHS.. so we know which part |
| * of the path to return. |
| */ |
| sepcount = 0; |
| for (p = *fnamep + *fnamelen - 1; p >= *fnamep; --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 = STRLEN(tfname); |
| |
| if (!get_short_pathname(&tfname, &pbuf, &len)) |
| return -1; |
| |
| 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) == -1) |
| return -1; |
| } |
| |
| /* Count the paths backward to find the beginning of the desired string. */ |
| for (p = tfname + len - 1; p >= tfname; --p) |
| if (vim_ispathsep(*p)) |
| { |
| if (sepcount == 0 || (hasTilde && sepcount == 1)) |
| break; |
| else |
| sepcount --; |
| } |
| if (hasTilde) |
| { |
| --p; |
| if (p >= tfname) |
| *p = '~'; |
| else |
| return -1; |
| } |
| 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 0; |
| } |
| #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. |
| * 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 |
| 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; ++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; |
| } |
| |
| /* 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 && vim_ispathsep(tail[-1])) |
| --tail; |
| *fnamelen = (int)(tail - *fnamep); |
| #ifdef VMS |
| if (*fnamelen > 0) |
| *fnamelen += 1; /* the path separator is part of the path */ |
| #endif |
| while (tail > s && !vim_ispathsep(tail[-1])) |
| --tail; |
| } |
| |
| /* ":8" - shortname */ |
| if (src[*usedlen] == ':' && src[*usedlen + 1] == '8') |
| { |
| *usedlen += 2; |
| #ifdef WIN3264 |
| has_shortname = 1; |
| #endif |
| } |
| |
| #ifdef WIN3264 |
| /* Check shortname after we have done 'heads' and before we do 'tails' |
| */ |
| if (has_shortname) |
| { |
| pbuf = NULL; |
| /* Copy the string if it is shortened by :h */ |
| if (*fnamelen < (int)STRLEN(*fnamep)) |
| { |
| p = vim_strnsave(*fnamep, *fnamelen); |
| if (p == 0) |
| 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) == -1) |
| return -1; |
| } |
| else |
| { |
| int l; |
| |
| /* Simple case, already have the full-name |
| * Nearly always shorter, so try first time. */ |
| l = *fnamelen; |
| if (!get_short_pathname(fnamep, bufp, &l)) |
| return -1; |
| |
| if (l == 0) |
| { |
| /* Couldn't find the filename.. search the paths. |
| */ |
| l = *fnamelen; |
| if (shortpath_for_invalid_fname(fnamep, bufp, &l ) == -1) |
| 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; |
| } |
| } |
| |
| 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; |
| garray_T ga; |
| char_u *ret; |
| char_u *save_cpo; |
| |
| /* Make 'cpoptions' empty, so that the 'l' flag doesn't work here */ |
| save_cpo = p_cpo; |
| p_cpo = (char_u *)""; |
| |
| 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; |
| while (vim_regexec_nl(®match, str, (colnr_T)(tail - str))) |
| { |
| /* |
| * 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(®match, sub, tail, FALSE, TRUE, FALSE); |
| if (ga_grow(&ga, (int)(STRLEN(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(®match, sub, (char_u *)ga.ga_data |
| + ga.ga_len + i, TRUE, TRUE, FALSE); |
| ga.ga_len += i + sublen - 1; |
| ga.ga_room -= i + sublen - 1; |
| /* avoid getting stuck on a match with an empty string */ |
| if (tail == regmatch.endp[0]) |
| { |
| if (*tail == NUL) |
| break; |
| *((char_u *)ga.ga_data + ga.ga_len) = *tail++; |
| ++ga.ga_len; |
| --ga.ga_room; |
| } |
| else |
| { |
| 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_free(regmatch.regprog); |
| } |
| |
| ret = vim_strsave(ga.ga_data == NULL ? str : (char_u *)ga.ga_data); |
| ga_clear(&ga); |
| p_cpo = save_cpo; |
| |
| return ret; |
| } |
| |
| #endif /* defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) */ |