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fuchsia / third_party / vim / refs/tags/v7.3.160 / . / src / misc2.c
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/* 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.
*/
/*
* misc2.c: Various functions.
*/
#include "vim.h"
static char_u *username = NULL; /* cached result of mch_get_user_name() */
static char_u *ff_expand_buffer = NULL; /* used for expanding filenames */
#if defined(FEAT_VIRTUALEDIT) || defined(PROTO)
static int coladvance2 __ARGS((pos_T *pos, int addspaces, int finetune, colnr_T wcol));
/*
* Return TRUE if in the current mode we need to use virtual.
*/
int
virtual_active()
{
/* While an operator is being executed we return "virtual_op", because
* VIsual_active has already been reset, thus we can't check for "block"
* being used. */
if (virtual_op != MAYBE)
return virtual_op;
return (ve_flags == VE_ALL
# ifdef FEAT_VISUAL
|| ((ve_flags & VE_BLOCK) && VIsual_active && VIsual_mode == Ctrl_V)
# endif
|| ((ve_flags & VE_INSERT) && (State & INSERT)));
}
/*
* Get the screen position of the cursor.
*/
int
getviscol()
{
colnr_T x;
getvvcol(curwin, &curwin->w_cursor, &x, NULL, NULL);
return (int)x;
}
/*
* Get the screen position of character col with a coladd in the cursor line.
*/
int
getviscol2(col, coladd)
colnr_T col;
colnr_T coladd;
{
colnr_T x;
pos_T pos;
pos.lnum = curwin->w_cursor.lnum;
pos.col = col;
pos.coladd = coladd;
getvvcol(curwin, &pos, &x, NULL, NULL);
return (int)x;
}
/*
* Go to column "wcol", and add/insert white space as necessary to get the
* cursor in that column.
* The caller must have saved the cursor line for undo!
*/
int
coladvance_force(wcol)
colnr_T wcol;
{
int rc = coladvance2(&curwin->w_cursor, TRUE, FALSE, wcol);
if (wcol == MAXCOL)
curwin->w_valid &= ~VALID_VIRTCOL;
else
{
/* Virtcol is valid */
curwin->w_valid |= VALID_VIRTCOL;
curwin->w_virtcol = wcol;
}
return rc;
}
#endif
/*
* Try to advance the Cursor to the specified screen column.
* If virtual editing: fine tune the cursor position.
* Note that all virtual positions off the end of a line should share
* a curwin->w_cursor.col value (n.b. this is equal to STRLEN(line)),
* beginning at coladd 0.
*
* return OK if desired column is reached, FAIL if not
*/
int
coladvance(wcol)
colnr_T wcol;
{
int rc = getvpos(&curwin->w_cursor, wcol);
if (wcol == MAXCOL || rc == FAIL)
curwin->w_valid &= ~VALID_VIRTCOL;
else if (*ml_get_cursor() != TAB)
{
/* Virtcol is valid when not on a TAB */
curwin->w_valid |= VALID_VIRTCOL;
curwin->w_virtcol = wcol;
}
return rc;
}
/*
* Return in "pos" the position of the cursor advanced to screen column "wcol".
* return OK if desired column is reached, FAIL if not
*/
int
getvpos(pos, wcol)
pos_T *pos;
colnr_T wcol;
{
#ifdef FEAT_VIRTUALEDIT
return coladvance2(pos, FALSE, virtual_active(), wcol);
}
static int
coladvance2(pos, addspaces, finetune, wcol)
pos_T *pos;
int addspaces; /* change the text to achieve our goal? */
int finetune; /* change char offset for the exact column */
colnr_T wcol; /* column to move to */
{
#endif
int idx;
char_u *ptr;
char_u *line;
colnr_T col = 0;
int csize = 0;
int one_more;
#ifdef FEAT_LINEBREAK
int head = 0;
#endif
one_more = (State & INSERT)
|| restart_edit != NUL
#ifdef FEAT_VISUAL
|| (VIsual_active && *p_sel != 'o')
#endif
#ifdef FEAT_VIRTUALEDIT
|| ((ve_flags & VE_ONEMORE) && wcol < MAXCOL)
#endif
;
line = ml_get_buf(curbuf, pos->lnum, FALSE);
if (wcol >= MAXCOL)
{
idx = (int)STRLEN(line) - 1 + one_more;
col = wcol;
#ifdef FEAT_VIRTUALEDIT
if ((addspaces || finetune) && !VIsual_active)
{
curwin->w_curswant = linetabsize(line) + one_more;
if (curwin->w_curswant > 0)
--curwin->w_curswant;
}
#endif
}
else
{
#ifdef FEAT_VIRTUALEDIT
int width = W_WIDTH(curwin) - win_col_off(curwin);
if (finetune
&& curwin->w_p_wrap
# ifdef FEAT_VERTSPLIT
&& curwin->w_width != 0
# endif
&& wcol >= (colnr_T)width)
{
csize = linetabsize(line);
if (csize > 0)
csize--;
if (wcol / width > (colnr_T)csize / width
&& ((State & INSERT) == 0 || (int)wcol > csize + 1))
{
/* In case of line wrapping don't move the cursor beyond the
* right screen edge. In Insert mode allow going just beyond
* the last character (like what happens when typing and
* reaching the right window edge). */
wcol = (csize / width + 1) * width - 1;
}
}
#endif
ptr = line;
while (col <= wcol && *ptr != NUL)
{
/* Count a tab for what it's worth (if list mode not on) */
#ifdef FEAT_LINEBREAK
csize = win_lbr_chartabsize(curwin, ptr, col, &head);
mb_ptr_adv(ptr);
#else
csize = lbr_chartabsize_adv(&ptr, col);
#endif
col += csize;
}
idx = (int)(ptr - line);
/*
* Handle all the special cases. The virtual_active() check
* is needed to ensure that a virtual position off the end of
* a line has the correct indexing. The one_more comparison
* replaces an explicit add of one_more later on.
*/
if (col > wcol || (!virtual_active() && one_more == 0))
{
idx -= 1;
# ifdef FEAT_LINEBREAK
/* Don't count the chars from 'showbreak'. */
csize -= head;
# endif
col -= csize;
}
#ifdef FEAT_VIRTUALEDIT
if (virtual_active()
&& addspaces
&& ((col != wcol && col != wcol + 1) || csize > 1))
{
/* 'virtualedit' is set: The difference between wcol and col is
* filled with spaces. */
if (line[idx] == NUL)
{
/* Append spaces */
int correct = wcol - col;
char_u *newline = alloc(idx + correct + 1);
int t;
if (newline == NULL)
return FAIL;
for (t = 0; t < idx; ++t)
newline[t] = line[t];
for (t = 0; t < correct; ++t)
newline[t + idx] = ' ';
newline[idx + correct] = NUL;
ml_replace(pos->lnum, newline, FALSE);
changed_bytes(pos->lnum, (colnr_T)idx);
idx += correct;
col = wcol;
}
else
{
/* Break a tab */
int linelen = (int)STRLEN(line);
int correct = wcol - col - csize + 1; /* negative!! */
char_u *newline;
int t, s = 0;
int v;
if (-correct > csize)
return FAIL;
newline = alloc(linelen + csize);
if (newline == NULL)
return FAIL;
for (t = 0; t < linelen; t++)
{
if (t != idx)
newline[s++] = line[t];
else
for (v = 0; v < csize; v++)
newline[s++] = ' ';
}
newline[linelen + csize - 1] = NUL;
ml_replace(pos->lnum, newline, FALSE);
changed_bytes(pos->lnum, idx);
idx += (csize - 1 + correct);
col += correct;
}
}
#endif
}
if (idx < 0)
pos->col = 0;
else
pos->col = idx;
#ifdef FEAT_VIRTUALEDIT
pos->coladd = 0;
if (finetune)
{
if (wcol == MAXCOL)
{
/* The width of the last character is used to set coladd. */
if (!one_more)
{
colnr_T scol, ecol;
getvcol(curwin, pos, &scol, NULL, &ecol);
pos->coladd = ecol - scol;
}
}
else
{
int b = (int)wcol - (int)col;
/* The difference between wcol and col is used to set coladd. */
if (b > 0 && b < (MAXCOL - 2 * W_WIDTH(curwin)))
pos->coladd = b;
col += b;
}
}
#endif
#ifdef FEAT_MBYTE
/* prevent from moving onto a trail byte */
if (has_mbyte)
mb_adjustpos(pos);
#endif
if (col < wcol)
return FAIL;
return OK;
}
/*
* Increment the cursor position. See inc() for return values.
*/
int
inc_cursor()
{
return inc(&curwin->w_cursor);
}
/*
* Increment the line pointer "lp" crossing line boundaries as necessary.
* Return 1 when going to the next line.
* Return 2 when moving forward onto a NUL at the end of the line).
* Return -1 when at the end of file.
* Return 0 otherwise.
*/
int
inc(lp)
pos_T *lp;
{
char_u *p = ml_get_pos(lp);
if (*p != NUL) /* still within line, move to next char (may be NUL) */
{
#ifdef FEAT_MBYTE
if (has_mbyte)
{
int l = (*mb_ptr2len)(p);
lp->col += l;
return ((p[l] != NUL) ? 0 : 2);
}
#endif
lp->col++;
#ifdef FEAT_VIRTUALEDIT
lp->coladd = 0;
#endif
return ((p[1] != NUL) ? 0 : 2);
}
if (lp->lnum != curbuf->b_ml.ml_line_count) /* there is a next line */
{
lp->col = 0;
lp->lnum++;
#ifdef FEAT_VIRTUALEDIT
lp->coladd = 0;
#endif
return 1;
}
return -1;
}
/*
* incl(lp): same as inc(), but skip the NUL at the end of non-empty lines
*/
int
incl(lp)
pos_T *lp;
{
int r;
if ((r = inc(lp)) >= 1 && lp->col)
r = inc(lp);
return r;
}
/*
* dec(p)
*
* Decrement the line pointer 'p' crossing line boundaries as necessary.
* Return 1 when crossing a line, -1 when at start of file, 0 otherwise.
*/
int
dec_cursor()
{
return dec(&curwin->w_cursor);
}
int
dec(lp)
pos_T *lp;
{
char_u *p;
#ifdef FEAT_VIRTUALEDIT
lp->coladd = 0;
#endif
if (lp->col > 0) /* still within line */
{
lp->col--;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
p = ml_get(lp->lnum);
lp->col -= (*mb_head_off)(p, p + lp->col);
}
#endif
return 0;
}
if (lp->lnum > 1) /* there is a prior line */
{
lp->lnum--;
p = ml_get(lp->lnum);
lp->col = (colnr_T)STRLEN(p);
#ifdef FEAT_MBYTE
if (has_mbyte)
lp->col -= (*mb_head_off)(p, p + lp->col);
#endif
return 1;
}
return -1; /* at start of file */
}
/*
* decl(lp): same as dec(), but skip the NUL at the end of non-empty lines
*/
int
decl(lp)
pos_T *lp;
{
int r;
if ((r = dec(lp)) == 1 && lp->col)
r = dec(lp);
return r;
}
/*
* Get the line number relative to the current cursor position, i.e. the
* difference between line number and cursor position. Only look for lines that
* can be visible, folded lines don't count.
*/
linenr_T
get_cursor_rel_lnum(wp, lnum)
win_T *wp;
linenr_T lnum; /* line number to get the result for */
{
linenr_T cursor = wp->w_cursor.lnum;
linenr_T retval = 0;
#ifdef FEAT_FOLDING
if (hasAnyFolding(wp))
{
if (lnum > cursor)
{
while (lnum > cursor)
{
(void)hasFolding(lnum, &lnum, NULL);
/* if lnum and cursor are in the same fold,
* now lnum <= cursor */
if (lnum > cursor)
retval++;
lnum--;
}
}
else if (lnum < cursor)
{
while (lnum < cursor)
{
(void)hasFolding(lnum, NULL, &lnum);
/* if lnum and cursor are in the same fold,
* now lnum >= cursor */
if (lnum < cursor)
retval--;
lnum++;
}
}
/* else if (lnum == cursor)
* retval = 0;
*/
}
else
#endif
retval = lnum - cursor;
return retval;
}
/*
* Make sure curwin->w_cursor.lnum is valid.
*/
void
check_cursor_lnum()
{
if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
{
#ifdef FEAT_FOLDING
/* If there is a closed fold at the end of the file, put the cursor in
* its first line. Otherwise in the last line. */
if (!hasFolding(curbuf->b_ml.ml_line_count,
&curwin->w_cursor.lnum, NULL))
#endif
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
}
if (curwin->w_cursor.lnum <= 0)
curwin->w_cursor.lnum = 1;
}
/*
* Make sure curwin->w_cursor.col is valid.
*/
void
check_cursor_col()
{
colnr_T len;
#ifdef FEAT_VIRTUALEDIT
colnr_T oldcol = curwin->w_cursor.col;
colnr_T oldcoladd = curwin->w_cursor.col + curwin->w_cursor.coladd;
#endif
len = (colnr_T)STRLEN(ml_get_curline());
if (len == 0)
curwin->w_cursor.col = 0;
else if (curwin->w_cursor.col >= len)
{
/* Allow cursor past end-of-line when:
* - in Insert mode or restarting Insert mode
* - in Visual mode and 'selection' isn't "old"
* - 'virtualedit' is set */
if ((State & INSERT) || restart_edit
#ifdef FEAT_VISUAL
|| (VIsual_active && *p_sel != 'o')
#endif
#ifdef FEAT_VIRTUALEDIT
|| (ve_flags & VE_ONEMORE)
#endif
|| virtual_active())
curwin->w_cursor.col = len;
else
{
curwin->w_cursor.col = len - 1;
#ifdef FEAT_MBYTE
/* prevent cursor from moving on the trail byte */
if (has_mbyte)
mb_adjust_cursor();
#endif
}
}
else if (curwin->w_cursor.col < 0)
curwin->w_cursor.col = 0;
#ifdef FEAT_VIRTUALEDIT
/* If virtual editing is on, we can leave the cursor on the old position,
* only we must set it to virtual. But don't do it when at the end of the
* line. */
if (oldcol == MAXCOL)
curwin->w_cursor.coladd = 0;
else if (ve_flags == VE_ALL)
{
if (oldcoladd > curwin->w_cursor.col)
curwin->w_cursor.coladd = oldcoladd - curwin->w_cursor.col;
else
/* avoid weird number when there is a miscalculation or overflow */
curwin->w_cursor.coladd = 0;
}
#endif
}
/*
* make sure curwin->w_cursor in on a valid character
*/
void
check_cursor()
{
check_cursor_lnum();
check_cursor_col();
}
#if defined(FEAT_TEXTOBJ) || defined(PROTO)
/*
* Make sure curwin->w_cursor is not on the NUL at the end of the line.
* Allow it when in Visual mode and 'selection' is not "old".
*/
void
adjust_cursor_col()
{
if (curwin->w_cursor.col > 0
# ifdef FEAT_VISUAL
&& (!VIsual_active || *p_sel == 'o')
# endif
&& gchar_cursor() == NUL)
--curwin->w_cursor.col;
}
#endif
/*
* When curwin->w_leftcol has changed, adjust the cursor position.
* Return TRUE if the cursor was moved.
*/
int
leftcol_changed()
{
long lastcol;
colnr_T s, e;
int retval = FALSE;
changed_cline_bef_curs();
lastcol = curwin->w_leftcol + W_WIDTH(curwin) - curwin_col_off() - 1;
validate_virtcol();
/*
* If the cursor is right or left of the screen, move it to last or first
* character.
*/
if (curwin->w_virtcol > (colnr_T)(lastcol - p_siso))
{
retval = TRUE;
coladvance((colnr_T)(lastcol - p_siso));
}
else if (curwin->w_virtcol < curwin->w_leftcol + p_siso)
{
retval = TRUE;
(void)coladvance((colnr_T)(curwin->w_leftcol + p_siso));
}
/*
* If the start of the character under the cursor is not on the screen,
* advance the cursor one more char. If this fails (last char of the
* line) adjust the scrolling.
*/
getvvcol(curwin, &curwin->w_cursor, &s, NULL, &e);
if (e > (colnr_T)lastcol)
{
retval = TRUE;
coladvance(s - 1);
}
else if (s < curwin->w_leftcol)
{
retval = TRUE;
if (coladvance(e + 1) == FAIL) /* there isn't another character */
{
curwin->w_leftcol = s; /* adjust w_leftcol instead */
changed_cline_bef_curs();
}
}
if (retval)
curwin->w_set_curswant = TRUE;
redraw_later(NOT_VALID);
return retval;
}
/**********************************************************************
* Various routines dealing with allocation and deallocation of memory.
*/
#if defined(MEM_PROFILE) || defined(PROTO)
# define MEM_SIZES 8200
static long_u mem_allocs[MEM_SIZES];
static long_u mem_frees[MEM_SIZES];
static long_u mem_allocated;
static long_u mem_freed;
static long_u mem_peak;
static long_u num_alloc;
static long_u num_freed;
static void mem_pre_alloc_s __ARGS((size_t *sizep));
static void mem_pre_alloc_l __ARGS((long_u *sizep));
static void mem_post_alloc __ARGS((void **pp, size_t size));
static void mem_pre_free __ARGS((void **pp));
static void
mem_pre_alloc_s(sizep)
size_t *sizep;
{
*sizep += sizeof(size_t);
}
static void
mem_pre_alloc_l(sizep)
long_u *sizep;
{
*sizep += sizeof(size_t);
}
static void
mem_post_alloc(pp, size)
void **pp;
size_t size;
{
if (*pp == NULL)
return;
size -= sizeof(size_t);
*(long_u *)*pp = size;
if (size <= MEM_SIZES-1)
mem_allocs[size-1]++;
else
mem_allocs[MEM_SIZES-1]++;
mem_allocated += size;
if (mem_allocated - mem_freed > mem_peak)
mem_peak = mem_allocated - mem_freed;
num_alloc++;
*pp = (void *)((char *)*pp + sizeof(size_t));
}
static void
mem_pre_free(pp)
void **pp;
{
long_u size;
*pp = (void *)((char *)*pp - sizeof(size_t));
size = *(size_t *)*pp;
if (size <= MEM_SIZES-1)
mem_frees[size-1]++;
else
mem_frees[MEM_SIZES-1]++;
mem_freed += size;
num_freed++;
}
/*
* called on exit via atexit()
*/
void
vim_mem_profile_dump()
{
int i, j;
printf("\r\n");
j = 0;
for (i = 0; i < MEM_SIZES - 1; i++)
{
if (mem_allocs[i] || mem_frees[i])
{
if (mem_frees[i] > mem_allocs[i])
printf("\r\n%s", _("ERROR: "));
printf("[%4d / %4lu-%-4lu] ", i + 1, mem_allocs[i], mem_frees[i]);
j++;
if (j > 3)
{
j = 0;
printf("\r\n");
}
}
}
i = MEM_SIZES - 1;
if (mem_allocs[i])
{
printf("\r\n");
if (mem_frees[i] > mem_allocs[i])
puts(_("ERROR: "));
printf("[>%d / %4lu-%-4lu]", i, mem_allocs[i], mem_frees[i]);
}
printf(_("\n[bytes] total alloc-freed %lu-%lu, in use %lu, peak use %lu\n"),
mem_allocated, mem_freed, mem_allocated - mem_freed, mem_peak);
printf(_("[calls] total re/malloc()'s %lu, total free()'s %lu\n\n"),
num_alloc, num_freed);
}
#endif /* MEM_PROFILE */
/*
* Some memory is reserved for error messages and for being able to
* call mf_release_all(), which needs some memory for mf_trans_add().
*/
#if defined(MSDOS) && !defined(DJGPP)
# define SMALL_MEM
# define KEEP_ROOM 8192L
#else
# define KEEP_ROOM (2 * 8192L)
#endif
/*
* Note: if unsigned is 16 bits we can only allocate up to 64K with alloc().
* Use lalloc for larger blocks.
*/
char_u *
alloc(size)
unsigned size;
{
return (lalloc((long_u)size, TRUE));
}
/*
* Allocate memory and set all bytes to zero.
*/
char_u *
alloc_clear(size)
unsigned size;
{
char_u *p;
p = lalloc((long_u)size, TRUE);
if (p != NULL)
(void)vim_memset(p, 0, (size_t)size);
return p;
}
/*
* alloc() with check for maximum line length
*/
char_u *
alloc_check(size)
unsigned size;
{
#if !defined(UNIX) && !defined(__EMX__)
if (sizeof(int) == 2 && size > 0x7fff)
{
/* Don't hide this message */
emsg_silent = 0;
EMSG(_("E340: Line is becoming too long"));
return NULL;
}
#endif
return (lalloc((long_u)size, TRUE));
}
/*
* Allocate memory like lalloc() and set all bytes to zero.
*/
char_u *
lalloc_clear(size, message)
long_u size;
int message;
{
char_u *p;
p = (lalloc(size, message));
if (p != NULL)
(void)vim_memset(p, 0, (size_t)size);
return p;
}
/*
* Low level memory allocation function.
* This is used often, KEEP IT FAST!
*/
char_u *
lalloc(size, message)
long_u size;
int message;
{
char_u *p; /* pointer to new storage space */
static int releasing = FALSE; /* don't do mf_release_all() recursive */
int try_again;
#if defined(HAVE_AVAIL_MEM) && !defined(SMALL_MEM)
static long_u allocated = 0; /* allocated since last avail check */
#endif
/* Safety check for allocating zero bytes */
if (size == 0)
{
/* Don't hide this message */
emsg_silent = 0;
EMSGN(_("E341: Internal error: lalloc(%ld, )"), size);
return NULL;
}
#ifdef MEM_PROFILE
mem_pre_alloc_l(&size);
#endif
#if defined(MSDOS) && !defined(DJGPP)
if (size >= 0xfff0) /* in MSDOS we can't deal with >64K blocks */
p = NULL;
else
#endif
/*
* Loop when out of memory: Try to release some memfile blocks and
* if some blocks are released call malloc again.
*/
for (;;)
{
/*
* Handle three kind of systems:
* 1. No check for available memory: Just return.
* 2. Slow check for available memory: call mch_avail_mem() after
* allocating KEEP_ROOM amount of memory.
* 3. Strict check for available memory: call mch_avail_mem()
*/
if ((p = (char_u *)malloc((size_t)size)) != NULL)
{
#ifndef HAVE_AVAIL_MEM
/* 1. No check for available memory: Just return. */
goto theend;
#else
# ifndef SMALL_MEM
/* 2. Slow check for available memory: call mch_avail_mem() after
* allocating (KEEP_ROOM / 2) amount of memory. */
allocated += size;
if (allocated < KEEP_ROOM / 2)
goto theend;
allocated = 0;
# endif
/* 3. check for available memory: call mch_avail_mem() */
if (mch_avail_mem(TRUE) < KEEP_ROOM && !releasing)
{
free((char *)p); /* System is low... no go! */
p = NULL;
}
else
goto theend;
#endif
}
/*
* Remember that mf_release_all() is being called to avoid an endless
* loop, because mf_release_all() may call alloc() recursively.
*/
if (releasing)
break;
releasing = TRUE;
clear_sb_text(); /* free any scrollback text */
try_again = mf_release_all(); /* release as many blocks as possible */
#ifdef FEAT_EVAL
try_again |= garbage_collect(); /* cleanup recursive lists/dicts */
#endif
releasing = FALSE;
if (!try_again)
break;
}
if (message && p == NULL)
do_outofmem_msg(size);
theend:
#ifdef MEM_PROFILE
mem_post_alloc((void **)&p, (size_t)size);
#endif
return p;
}
#if defined(MEM_PROFILE) || defined(PROTO)
/*
* realloc() with memory profiling.
*/
void *
mem_realloc(ptr, size)
void *ptr;
size_t size;
{
void *p;
mem_pre_free(&ptr);
mem_pre_alloc_s(&size);
p = realloc(ptr, size);
mem_post_alloc(&p, size);
return p;
}
#endif
/*
* Avoid repeating the error message many times (they take 1 second each).
* Did_outofmem_msg is reset when a character is read.
*/
void
do_outofmem_msg(size)
long_u size;
{
if (!did_outofmem_msg)
{
/* Don't hide this message */
emsg_silent = 0;
EMSGN(_("E342: Out of memory! (allocating %lu bytes)"), size);
did_outofmem_msg = TRUE;
}
}
#if defined(EXITFREE) || defined(PROTO)
# if defined(FEAT_SEARCHPATH)
static void free_findfile __ARGS((void));
# endif
/*
* Free everything that we allocated.
* Can be used to detect memory leaks, e.g., with ccmalloc.
* NOTE: This is tricky! Things are freed that functions depend on. Don't be
* surprised if Vim crashes...
* Some things can't be freed, esp. things local to a library function.
*/
void
free_all_mem()
{
buf_T *buf, *nextbuf;
static int entered = FALSE;
/* When we cause a crash here it is caught and Vim tries to exit cleanly.
* Don't try freeing everything again. */
if (entered)
return;
entered = TRUE;
# ifdef FEAT_AUTOCMD
block_autocmds(); /* don't want to trigger autocommands here */
# endif
# ifdef FEAT_WINDOWS
/* Close all tabs and windows. Reset 'equalalways' to avoid redraws. */
p_ea = FALSE;
if (first_tabpage->tp_next != NULL)
do_cmdline_cmd((char_u *)"tabonly!");
if (firstwin != lastwin)
do_cmdline_cmd((char_u *)"only!");
# endif
# if defined(FEAT_SPELL)
/* Free all spell info. */
spell_free_all();
# endif
# if defined(FEAT_USR_CMDS)
/* Clear user commands (before deleting buffers). */
ex_comclear(NULL);
# endif
# ifdef FEAT_MENU
/* Clear menus. */
do_cmdline_cmd((char_u *)"aunmenu *");
# ifdef FEAT_MULTI_LANG
do_cmdline_cmd((char_u *)"menutranslate clear");
# endif
# endif
/* Clear mappings, abbreviations, breakpoints. */
do_cmdline_cmd((char_u *)"lmapclear");
do_cmdline_cmd((char_u *)"xmapclear");
do_cmdline_cmd((char_u *)"mapclear");
do_cmdline_cmd((char_u *)"mapclear!");
do_cmdline_cmd((char_u *)"abclear");
# if defined(FEAT_EVAL)
do_cmdline_cmd((char_u *)"breakdel *");
# endif
# if defined(FEAT_PROFILE)
do_cmdline_cmd((char_u *)"profdel *");
# endif
# if defined(FEAT_KEYMAP)
do_cmdline_cmd((char_u *)"set keymap=");
#endif
# ifdef FEAT_TITLE
free_titles();
# endif
# if defined(FEAT_SEARCHPATH)
free_findfile();
# endif
/* Obviously named calls. */
# if defined(FEAT_AUTOCMD)
free_all_autocmds();
# endif
clear_termcodes();
free_all_options();
free_all_marks();
alist_clear(&global_alist);
free_homedir();
free_search_patterns();
free_old_sub();
free_last_insert();
free_prev_shellcmd();
free_regexp_stuff();
free_tag_stuff();
free_cd_dir();
# ifdef FEAT_SIGNS
free_signs();
# endif
# ifdef FEAT_EVAL
set_expr_line(NULL);
# endif
# ifdef FEAT_DIFF
diff_clear(curtab);
# endif
clear_sb_text(); /* free any scrollback text */
/* Free some global vars. */
vim_free(username);
# ifdef FEAT_CLIPBOARD
vim_free(clip_exclude_prog);
# endif
vim_free(last_cmdline);
# ifdef FEAT_CMDHIST
vim_free(new_last_cmdline);
# endif
set_keep_msg(NULL, 0);
vim_free(ff_expand_buffer);
/* Clear cmdline history. */
p_hi = 0;
# ifdef FEAT_CMDHIST
init_history();
# endif
#ifdef FEAT_QUICKFIX
{
win_T *win;
tabpage_T *tab;
qf_free_all(NULL);
/* Free all location lists */
FOR_ALL_TAB_WINDOWS(tab, win)
qf_free_all(win);
}
#endif
/* Close all script inputs. */
close_all_scripts();
#if defined(FEAT_WINDOWS)
/* Destroy all windows. Must come before freeing buffers. */
win_free_all();
#endif
/* Free all buffers. Reset 'autochdir' to avoid accessing things that
* were freed already. */
#ifdef FEAT_AUTOCHDIR
p_acd = FALSE;
#endif
for (buf = firstbuf; buf != NULL; )
{
nextbuf = buf->b_next;
close_buffer(NULL, buf, DOBUF_WIPE);
if (buf_valid(buf))
buf = nextbuf; /* didn't work, try next one */
else
buf = firstbuf;
}
#ifdef FEAT_ARABIC
free_cmdline_buf();
#endif
/* Clear registers. */
clear_registers();
ResetRedobuff();
ResetRedobuff();
#if defined(FEAT_CLIENTSERVER) && defined(FEAT_X11)
vim_free(serverDelayedStartName);
#endif
/* highlight info */
free_highlight();
reset_last_sourcing();
#ifdef FEAT_WINDOWS
free_tabpage(first_tabpage);
first_tabpage = NULL;
#endif
# ifdef UNIX
/* Machine-specific free. */
mch_free_mem();
# endif
/* message history */
for (;;)
if (delete_first_msg() == FAIL)
break;
# ifdef FEAT_EVAL
eval_clear();
# endif
free_termoptions();
/* screenlines (can't display anything now!) */
free_screenlines();
#if defined(USE_XSMP)
xsmp_close();
#endif
#ifdef FEAT_GUI_GTK
gui_mch_free_all();
#endif
clear_hl_tables();
vim_free(IObuff);
vim_free(NameBuff);
}
#endif
/*
* Copy "string" into newly allocated memory.
*/
char_u *
vim_strsave(string)
char_u *string;
{
char_u *p;
unsigned len;
len = (unsigned)STRLEN(string) + 1;
p = alloc(len);
if (p != NULL)
mch_memmove(p, string, (size_t)len);
return p;
}
/*
* Copy up to "len" bytes of "string" into newly allocated memory and
* terminate with a NUL.
* The allocated memory always has size "len + 1", also when "string" is
* shorter.
*/
char_u *
vim_strnsave(string, len)
char_u *string;
int len;
{
char_u *p;
p = alloc((unsigned)(len + 1));
if (p != NULL)
{
STRNCPY(p, string, len);
p[len] = NUL;
}
return p;
}
/*
* Same as vim_strsave(), but any characters found in esc_chars are preceded
* by a backslash.
*/
char_u *
vim_strsave_escaped(string, esc_chars)
char_u *string;
char_u *esc_chars;
{
return vim_strsave_escaped_ext(string, esc_chars, '\\', FALSE);
}
/*
* Same as vim_strsave_escaped(), but when "bsl" is TRUE also escape
* characters where rem_backslash() would remove the backslash.
* Escape the characters with "cc".
*/
char_u *
vim_strsave_escaped_ext(string, esc_chars, cc, bsl)
char_u *string;
char_u *esc_chars;
int cc;
int bsl;
{
char_u *p;
char_u *p2;
char_u *escaped_string;
unsigned length;
#ifdef FEAT_MBYTE
int l;
#endif
/*
* First count the number of backslashes required.
* Then allocate the memory and insert them.
*/
length = 1; /* count the trailing NUL */
for (p = string; *p; p++)
{
#ifdef FEAT_MBYTE
if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
{
length += l; /* count a multibyte char */
p += l - 1;
continue;
}
#endif
if (vim_strchr(esc_chars, *p) != NULL || (bsl && rem_backslash(p)))
++length; /* count a backslash */
++length; /* count an ordinary char */
}
escaped_string = alloc(length);
if (escaped_string != NULL)
{
p2 = escaped_string;
for (p = string; *p; p++)
{
#ifdef FEAT_MBYTE
if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
{
mch_memmove(p2, p, (size_t)l);
p2 += l;
p += l - 1; /* skip multibyte char */
continue;
}
#endif
if (vim_strchr(esc_chars, *p) != NULL || (bsl && rem_backslash(p)))
*p2++ = cc;
*p2++ = *p;
}
*p2 = NUL;
}
return escaped_string;
}
/*
* Return TRUE when 'shell' has "csh" in the tail.
*/
int
csh_like_shell()
{
return (strstr((char *)gettail(p_sh), "csh") != NULL);
}
/*
* Escape "string" for use as a shell argument with system().
* This uses single quotes, except when we know we need to use double quotes
* (MS-DOS and MS-Windows without 'shellslash' set).
* Escape a newline, depending on the 'shell' option.
* When "do_special" is TRUE also replace "!", "%", "#" and things starting
* with "<" like "<cfile>".
* Returns the result in allocated memory, NULL if we have run out.
*/
char_u *
vim_strsave_shellescape(string, do_special)
char_u *string;
int do_special;
{
unsigned length;
char_u *p;
char_u *d;
char_u *escaped_string;
int l;
int csh_like;
/* Only csh and similar shells expand '!' within single quotes. For sh and
* the like we must not put a backslash before it, it will be taken
* literally. If do_special is set the '!' will be escaped twice.
* Csh also needs to have "\n" escaped twice when do_special is set. */
csh_like = csh_like_shell();
/* First count the number of extra bytes required. */
length = (unsigned)STRLEN(string) + 3; /* two quotes and a trailing NUL */
for (p = string; *p != NUL; mb_ptr_adv(p))
{
# if defined(WIN32) || defined(WIN16) || defined(DOS)
if (!p_ssl)
{
if (*p == '"')
++length; /* " -> "" */
}
else
# endif
if (*p == '\'')
length += 3; /* ' => '\'' */
if (*p == '\n' || (*p == '!' && (csh_like || do_special)))
{
++length; /* insert backslash */
if (csh_like && do_special)
++length; /* insert backslash */
}
if (do_special && find_cmdline_var(p, &l) >= 0)
{
++length; /* insert backslash */
p += l - 1;
}
}
/* Allocate memory for the result and fill it. */
escaped_string = alloc(length);
if (escaped_string != NULL)
{
d = escaped_string;
/* add opening quote */
# if defined(WIN32) || defined(WIN16) || defined(DOS)
if (!p_ssl)
*d++ = '"';
else
# endif
*d++ = '\'';
for (p = string; *p != NUL; )
{
# if defined(WIN32) || defined(WIN16) || defined(DOS)
if (!p_ssl)
{
if (*p == '"')
{
*d++ = '"';
*d++ = '"';
++p;
continue;
}
}
else
# endif
if (*p == '\'')
{
*d++ = '\'';
*d++ = '\\';
*d++ = '\'';
*d++ = '\'';
++p;
continue;
}
if (*p == '\n' || (*p == '!' && (csh_like || do_special)))
{
*d++ = '\\';
if (csh_like && do_special)
*d++ = '\\';
*d++ = *p++;
continue;
}
if (do_special && find_cmdline_var(p, &l) >= 0)
{
*d++ = '\\'; /* insert backslash */
while (--l >= 0) /* copy the var */
*d++ = *p++;
continue;
}
MB_COPY_CHAR(p, d);
}
/* add terminating quote and finish with a NUL */
# if defined(WIN32) || defined(WIN16) || defined(DOS)
if (!p_ssl)
*d++ = '"';
else
# endif
*d++ = '\'';
*d = NUL;
}
return escaped_string;
}
/*
* Like vim_strsave(), but make all characters uppercase.
* This uses ASCII lower-to-upper case translation, language independent.
*/
char_u *
vim_strsave_up(string)
char_u *string;
{
char_u *p1;
p1 = vim_strsave(string);
vim_strup(p1);
return p1;
}
/*
* Like vim_strnsave(), but make all characters uppercase.
* This uses ASCII lower-to-upper case translation, language independent.
*/
char_u *
vim_strnsave_up(string, len)
char_u *string;
int len;
{
char_u *p1;
p1 = vim_strnsave(string, len);
vim_strup(p1);
return p1;
}
/*
* ASCII lower-to-upper case translation, language independent.
*/
void
vim_strup(p)
char_u *p;
{
char_u *p2;
int c;
if (p != NULL)
{
p2 = p;
while ((c = *p2) != NUL)
#ifdef EBCDIC
*p2++ = isalpha(c) ? toupper(c) : c;
#else
*p2++ = (c < 'a' || c > 'z') ? c : (c - 0x20);
#endif
}
}
#if defined(FEAT_EVAL) || defined(FEAT_SPELL) || defined(PROTO)
/*
* Make string "s" all upper-case and return it in allocated memory.
* Handles multi-byte characters as well as possible.
* Returns NULL when out of memory.
*/
char_u *
strup_save(orig)
char_u *orig;
{
char_u *p;
char_u *res;
res = p = vim_strsave(orig);
if (res != NULL)
while (*p != NUL)
{
# ifdef FEAT_MBYTE
int l;
if (enc_utf8)
{
int c, uc;
int nl;
char_u *s;
c = utf_ptr2char(p);
uc = utf_toupper(c);
/* Reallocate string when byte count changes. This is rare,
* thus it's OK to do another malloc()/free(). */
l = utf_ptr2len(p);
nl = utf_char2len(uc);
if (nl != l)
{
s = alloc((unsigned)STRLEN(res) + 1 + nl - l);
if (s == NULL)
break;
mch_memmove(s, res, p - res);
STRCPY(s + (p - res) + nl, p + l);
p = s + (p - res);
vim_free(res);
res = s;
}
utf_char2bytes(uc, p);
p += nl;
}
else if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
p += l; /* skip multi-byte character */
else
# endif
{
*p = TOUPPER_LOC(*p); /* note that toupper() can be a macro */
p++;
}
}
return res;
}
#endif
/*
* copy a space a number of times
*/
void
copy_spaces(ptr, count)
char_u *ptr;
size_t count;
{
size_t i = count;
char_u *p = ptr;
while (i--)
*p++ = ' ';
}
#if defined(FEAT_VISUALEXTRA) || defined(PROTO)
/*
* Copy a character a number of times.
* Does not work for multi-byte characters!
*/
void
copy_chars(ptr, count, c)
char_u *ptr;
size_t count;
int c;
{
size_t i = count;
char_u *p = ptr;
while (i--)
*p++ = c;
}
#endif
/*
* delete spaces at the end of a string
*/
void
del_trailing_spaces(ptr)
char_u *ptr;
{
char_u *q;
q = ptr + STRLEN(ptr);
while (--q > ptr && vim_iswhite(q[0]) && q[-1] != '\\' && q[-1] != Ctrl_V)
*q = NUL;
}
/*
* Like strncpy(), but always terminate the result with one NUL.
* "to" must be "len + 1" long!
*/
void
vim_strncpy(to, from, len)
char_u *to;
char_u *from;
size_t len;
{
STRNCPY(to, from, len);
to[len] = NUL;
}
/*
* Like strcat(), but make sure the result fits in "tosize" bytes and is
* always NUL terminated.
*/
void
vim_strcat(to, from, tosize)
char_u *to;
char_u *from;
size_t tosize;
{
size_t tolen = STRLEN(to);
size_t fromlen = STRLEN(from);
if (tolen + fromlen + 1 > tosize)
{
mch_memmove(to + tolen, from, tosize - tolen - 1);
to[tosize - 1] = NUL;
}
else
STRCPY(to + tolen, from);
}
/*
* Isolate one part of a string option where parts are separated with
* "sep_chars".
* The part is copied into "buf[maxlen]".
* "*option" is advanced to the next part.
* The length is returned.
*/
int
copy_option_part(option, buf, maxlen, sep_chars)
char_u **option;
char_u *buf;
int maxlen;
char *sep_chars;
{
int len = 0;
char_u *p = *option;
/* skip '.' at start of option part, for 'suffixes' */
if (*p == '.')
buf[len++] = *p++;
while (*p != NUL && vim_strchr((char_u *)sep_chars, *p) == NULL)
{
/*
* Skip backslash before a separator character and space.
*/
if (p[0] == '\\' && vim_strchr((char_u *)sep_chars, p[1]) != NULL)
++p;
if (len < maxlen - 1)
buf[len++] = *p;
++p;
}
buf[len] = NUL;
if (*p != NUL && *p != ',') /* skip non-standard separator */
++p;
p = skip_to_option_part(p); /* p points to next file name */
*option = p;
return len;
}
/*
* Replacement for free() that ignores NULL pointers.
* Also skip free() when exiting for sure, this helps when we caught a deadly
* signal that was caused by a crash in free().
*/
void
vim_free(x)
void *x;
{
if (x != NULL && !really_exiting)
{
#ifdef MEM_PROFILE
mem_pre_free(&x);
#endif
free(x);
}
}
#ifndef HAVE_MEMSET
void *
vim_memset(ptr, c, size)
void *ptr;
int c;
size_t size;
{
char *p = ptr;
while (size-- > 0)
*p++ = c;
return ptr;
}
#endif
#ifdef VIM_MEMCMP
/*
* Return zero when "b1" and "b2" are the same for "len" bytes.
* Return non-zero otherwise.
*/
int
vim_memcmp(b1, b2, len)
void *b1;
void *b2;
size_t len;
{
char_u *p1 = (char_u *)b1, *p2 = (char_u *)b2;
for ( ; len > 0; --len)
{
if (*p1 != *p2)
return 1;
++p1;
++p2;
}
return 0;
}
#endif
#ifdef VIM_MEMMOVE
/*
* Version of memmove() that handles overlapping source and destination.
* For systems that don't have a function that is guaranteed to do that (SYSV).
*/
void
mch_memmove(dst_arg, src_arg, len)
void *src_arg, *dst_arg;
size_t len;
{
/*
* A void doesn't have a size, we use char pointers.
*/
char *dst = dst_arg, *src = src_arg;
/* overlap, copy backwards */
if (dst > src && dst < src + len)
{
src += len;
dst += len;
while (len-- > 0)
*--dst = *--src;
}
else /* copy forwards */
while (len-- > 0)
*dst++ = *src++;
}
#endif
#if (!defined(HAVE_STRCASECMP) && !defined(HAVE_STRICMP)) || defined(PROTO)
/*
* Compare two strings, ignoring case, using current locale.
* Doesn't work for multi-byte characters.
* return 0 for match, < 0 for smaller, > 0 for bigger
*/
int
vim_stricmp(s1, s2)
char *s1;
char *s2;
{
int i;
for (;;)
{
i = (int)TOLOWER_LOC(*s1) - (int)TOLOWER_LOC(*s2);
if (i != 0)
return i; /* this character different */
if (*s1 == NUL)
break; /* strings match until NUL */
++s1;
++s2;
}
return 0; /* strings match */
}
#endif
#if (!defined(HAVE_STRNCASECMP) && !defined(HAVE_STRNICMP)) || defined(PROTO)
/*
* Compare two strings, for length "len", ignoring case, using current locale.
* Doesn't work for multi-byte characters.
* return 0 for match, < 0 for smaller, > 0 for bigger
*/
int
vim_strnicmp(s1, s2, len)
char *s1;
char *s2;
size_t len;
{
int i;
while (len > 0)
{
i = (int)TOLOWER_LOC(*s1) - (int)TOLOWER_LOC(*s2);
if (i != 0)
return i; /* this character different */
if (*s1 == NUL)
break; /* strings match until NUL */
++s1;
++s2;
--len;
}
return 0; /* strings match */
}
#endif
/*
* Version of strchr() and strrchr() that handle unsigned char strings
* with characters from 128 to 255 correctly. It also doesn't return a
* pointer to the NUL at the end of the string.
*/
char_u *
vim_strchr(string, c)
char_u *string;
int c;
{
char_u *p;
int b;
p = string;
#ifdef FEAT_MBYTE
if (enc_utf8 && c >= 0x80)
{
while (*p != NUL)
{
if (utf_ptr2char(p) == c)
return p;
p += (*mb_ptr2len)(p);
}
return NULL;
}
if (enc_dbcs != 0 && c > 255)
{
int n2 = c & 0xff;
c = ((unsigned)c >> 8) & 0xff;
while ((b = *p) != NUL)
{
if (b == c && p[1] == n2)
return p;
p += (*mb_ptr2len)(p);
}
return NULL;
}
if (has_mbyte)
{
while ((b = *p) != NUL)
{
if (b == c)
return p;
p += (*mb_ptr2len)(p);
}
return NULL;
}
#endif
while ((b = *p) != NUL)
{
if (b == c)
return p;
++p;
}
return NULL;
}
/*
* Version of strchr() that only works for bytes and handles unsigned char
* strings with characters above 128 correctly. It also doesn't return a
* pointer to the NUL at the end of the string.
*/
char_u *
vim_strbyte(string, c)
char_u *string;
int c;
{
char_u *p = string;
while (*p != NUL)
{
if (*p == c)
return p;
++p;
}
return NULL;
}
/*
* Search for last occurrence of "c" in "string".
* Return NULL if not found.
* Does not handle multi-byte char for "c"!
*/
char_u *
vim_strrchr(string, c)
char_u *string;
int c;
{
char_u *retval = NULL;
char_u *p = string;
while (*p)
{
if (*p == c)
retval = p;
mb_ptr_adv(p);
}
return retval;
}
/*
* Vim's version of strpbrk(), in case it's missing.
* Don't generate a prototype for this, causes problems when it's not used.
*/
#ifndef PROTO
# ifndef HAVE_STRPBRK
# ifdef vim_strpbrk
# undef vim_strpbrk
# endif
char_u *
vim_strpbrk(s, charset)
char_u *s;
char_u *charset;
{
while (*s)
{
if (vim_strchr(charset, *s) != NULL)
return s;
mb_ptr_adv(s);
}
return NULL;
}
# endif
#endif
/*
* Vim has its own isspace() function, because on some machines isspace()
* can't handle characters above 128.
*/
int
vim_isspace(x)
int x;
{
return ((x >= 9 && x <= 13) || x == ' ');
}
/************************************************************************
* Functions for handling growing arrays.
*/
/*
* Clear an allocated growing array.
*/
void
ga_clear(gap)
garray_T *gap;
{
vim_free(gap->ga_data);
ga_init(gap);
}
/*
* Clear a growing array that contains a list of strings.
*/
void
ga_clear_strings(gap)
garray_T *gap;
{
int i;
for (i = 0; i < gap->ga_len; ++i)
vim_free(((char_u **)(gap->ga_data))[i]);
ga_clear(gap);
}
/*
* Initialize a growing array. Don't forget to set ga_itemsize and
* ga_growsize! Or use ga_init2().
*/
void
ga_init(gap)
garray_T *gap;
{
gap->ga_data = NULL;
gap->ga_maxlen = 0;
gap->ga_len = 0;
}
void
ga_init2(gap, itemsize, growsize)
garray_T *gap;
int itemsize;
int growsize;
{
ga_init(gap);
gap->ga_itemsize = itemsize;
gap->ga_growsize = growsize;
}
/*
* Make room in growing array "gap" for at least "n" items.
* Return FAIL for failure, OK otherwise.
*/
int
ga_grow(gap, n)
garray_T *gap;
int n;
{
size_t len;
char_u *pp;
if (gap->ga_maxlen - gap->ga_len < n)
{
if (n < gap->ga_growsize)
n = gap->ga_growsize;
len = gap->ga_itemsize * (gap->ga_len + n);
pp = alloc_clear((unsigned)len);
if (pp == NULL)
return FAIL;
gap->ga_maxlen = gap->ga_len + n;
if (gap->ga_data != NULL)
{
mch_memmove(pp, gap->ga_data,
(size_t)(gap->ga_itemsize * gap->ga_len));
vim_free(gap->ga_data);
}
gap->ga_data = pp;
}
return OK;
}
/*
* For a growing array that contains a list of strings: concatenate all the
* strings with a separating comma.
* Returns NULL when out of memory.
*/
char_u *
ga_concat_strings(gap)
garray_T *gap;
{
int i;
int len = 0;
char_u *s;
for (i = 0; i < gap->ga_len; ++i)
len += (int)STRLEN(((char_u **)(gap->ga_data))[i]) + 1;
s = alloc(len + 1);
if (s != NULL)
{
*s = NUL;
for (i = 0; i < gap->ga_len; ++i)
{
if (*s != NUL)
STRCAT(s, ",");
STRCAT(s, ((char_u **)(gap->ga_data))[i]);
}
}
return s;
}
/*
* Concatenate a string to a growarray which contains characters.
* Note: Does NOT copy the NUL at the end!
*/
void
ga_concat(gap, s)
garray_T *gap;
char_u *s;
{
int len = (int)STRLEN(s);
if (ga_grow(gap, len) == OK)
{
mch_memmove((char *)gap->ga_data + gap->ga_len, s, (size_t)len);
gap->ga_len += len;
}
}
/*
* Append one byte to a growarray which contains bytes.
*/
void
ga_append(gap, c)
garray_T *gap;
int c;
{
if (ga_grow(gap, 1) == OK)
{
*((char *)gap->ga_data + gap->ga_len) = c;
++gap->ga_len;
}
}
/************************************************************************
* functions that use lookup tables for various things, generally to do with
* special key codes.
*/
/*
* Some useful tables.
*/
static struct modmasktable
{
short mod_mask; /* Bit-mask for particular key modifier */
short mod_flag; /* Bit(s) for particular key modifier */
char_u name; /* Single letter name of modifier */
} mod_mask_table[] =
{
{MOD_MASK_ALT, MOD_MASK_ALT, (char_u)'M'},
{MOD_MASK_META, MOD_MASK_META, (char_u)'T'},
{MOD_MASK_CTRL, MOD_MASK_CTRL, (char_u)'C'},
{MOD_MASK_SHIFT, MOD_MASK_SHIFT, (char_u)'S'},
{MOD_MASK_MULTI_CLICK, MOD_MASK_2CLICK, (char_u)'2'},
{MOD_MASK_MULTI_CLICK, MOD_MASK_3CLICK, (char_u)'3'},
{MOD_MASK_MULTI_CLICK, MOD_MASK_4CLICK, (char_u)'4'},
#ifdef MACOS
{MOD_MASK_CMD, MOD_MASK_CMD, (char_u)'D'},
#endif
/* 'A' must be the last one */
{MOD_MASK_ALT, MOD_MASK_ALT, (char_u)'A'},
{0, 0, NUL}
};
/*
* Shifted key terminal codes and their unshifted equivalent.
* Don't add mouse codes here, they are handled separately!
*/
#define MOD_KEYS_ENTRY_SIZE 5
static char_u modifier_keys_table[] =
{
/* mod mask with modifier without modifier */
MOD_MASK_SHIFT, '&', '9', '@', '1', /* begin */
MOD_MASK_SHIFT, '&', '0', '@', '2', /* cancel */
MOD_MASK_SHIFT, '*', '1', '@', '4', /* command */
MOD_MASK_SHIFT, '*', '2', '@', '5', /* copy */
MOD_MASK_SHIFT, '*', '3', '@', '6', /* create */
MOD_MASK_SHIFT, '*', '4', 'k', 'D', /* delete char */
MOD_MASK_SHIFT, '*', '5', 'k', 'L', /* delete line */
MOD_MASK_SHIFT, '*', '7', '@', '7', /* end */
MOD_MASK_CTRL, KS_EXTRA, (int)KE_C_END, '@', '7', /* end */
MOD_MASK_SHIFT, '*', '9', '@', '9', /* exit */
MOD_MASK_SHIFT, '*', '0', '@', '0', /* find */
MOD_MASK_SHIFT, '#', '1', '%', '1', /* help */
MOD_MASK_SHIFT, '#', '2', 'k', 'h', /* home */
MOD_MASK_CTRL, KS_EXTRA, (int)KE_C_HOME, 'k', 'h', /* home */
MOD_MASK_SHIFT, '#', '3', 'k', 'I', /* insert */
MOD_MASK_SHIFT, '#', '4', 'k', 'l', /* left arrow */
MOD_MASK_CTRL, KS_EXTRA, (int)KE_C_LEFT, 'k', 'l', /* left arrow */
MOD_MASK_SHIFT, '%', 'a', '%', '3', /* message */
MOD_MASK_SHIFT, '%', 'b', '%', '4', /* move */
MOD_MASK_SHIFT, '%', 'c', '%', '5', /* next */
MOD_MASK_SHIFT, '%', 'd', '%', '7', /* options */
MOD_MASK_SHIFT, '%', 'e', '%', '8', /* previous */
MOD_MASK_SHIFT, '%', 'f', '%', '9', /* print */
MOD_MASK_SHIFT, '%', 'g', '%', '0', /* redo */
MOD_MASK_SHIFT, '%', 'h', '&', '3', /* replace */
MOD_MASK_SHIFT, '%', 'i', 'k', 'r', /* right arr. */
MOD_MASK_CTRL, KS_EXTRA, (int)KE_C_RIGHT, 'k', 'r', /* right arr. */
MOD_MASK_SHIFT, '%', 'j', '&', '5', /* resume */
MOD_MASK_SHIFT, '!', '1', '&', '6', /* save */
MOD_MASK_SHIFT, '!', '2', '&', '7', /* suspend */
MOD_MASK_SHIFT, '!', '3', '&', '8', /* undo */
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_UP, 'k', 'u', /* up arrow */
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_DOWN, 'k', 'd', /* down arrow */
/* vt100 F1 */
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_XF1, KS_EXTRA, (int)KE_XF1,
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_XF2, KS_EXTRA, (int)KE_XF2,
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_XF3, KS_EXTRA, (int)KE_XF3,
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_XF4, KS_EXTRA, (int)KE_XF4,
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F1, 'k', '1', /* F1 */
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F2, 'k', '2',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F3, 'k', '3',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F4, 'k', '4',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F5, 'k', '5',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F6, 'k', '6',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F7, 'k', '7',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F8, 'k', '8',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F9, 'k', '9',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F10, 'k', ';', /* F10 */
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F11, 'F', '1',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F12, 'F', '2',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F13, 'F', '3',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F14, 'F', '4',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F15, 'F', '5',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F16, 'F', '6',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F17, 'F', '7',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F18, 'F', '8',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F19, 'F', '9',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F20, 'F', 'A',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F21, 'F', 'B',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F22, 'F', 'C',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F23, 'F', 'D',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F24, 'F', 'E',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F25, 'F', 'F',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F26, 'F', 'G',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F27, 'F', 'H',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F28, 'F', 'I',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F29, 'F', 'J',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F30, 'F', 'K',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F31, 'F', 'L',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F32, 'F', 'M',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F33, 'F', 'N',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F34, 'F', 'O',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F35, 'F', 'P',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F36, 'F', 'Q',
MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F37, 'F', 'R',
/* TAB pseudo code*/
MOD_MASK_SHIFT, 'k', 'B', KS_EXTRA, (int)KE_TAB,
NUL
};
static struct key_name_entry
{
int key; /* Special key code or ascii value */
char_u *name; /* Name of key */
} key_names_table[] =
{
{' ', (char_u *)"Space"},
{TAB, (char_u *)"Tab"},
{K_TAB, (char_u *)"Tab"},
{NL, (char_u *)"NL"},
{NL, (char_u *)"NewLine"}, /* Alternative name */
{NL, (char_u *)"LineFeed"}, /* Alternative name */
{NL, (char_u *)"LF"}, /* Alternative name */
{CAR, (char_u *)"CR"},
{CAR, (char_u *)"Return"}, /* Alternative name */
{CAR, (char_u *)"Enter"}, /* Alternative name */
{K_BS, (char_u *)"BS"},
{K_BS, (char_u *)"BackSpace"}, /* Alternative name */
{ESC, (char_u *)"Esc"},
{CSI, (char_u *)"CSI"},
{K_CSI, (char_u *)"xCSI"},
{'|', (char_u *)"Bar"},
{'\\', (char_u *)"Bslash"},
{K_DEL, (char_u *)"Del"},
{K_DEL, (char_u *)"Delete"}, /* Alternative name */
{K_KDEL, (char_u *)"kDel"},
{K_UP, (char_u *)"Up"},
{K_DOWN, (char_u *)"Down"},
{K_LEFT, (char_u *)"Left"},
{K_RIGHT, (char_u *)"Right"},
{K_XUP, (char_u *)"xUp"},
{K_XDOWN, (char_u *)"xDown"},
{K_XLEFT, (char_u *)"xLeft"},
{K_XRIGHT, (char_u *)"xRight"},
{K_F1, (char_u *)"F1"},
{K_F2, (char_u *)"F2"},
{K_F3, (char_u *)"F3"},
{K_F4, (char_u *)"F4"},
{K_F5, (char_u *)"F5"},
{K_F6, (char_u *)"F6"},
{K_F7, (char_u *)"F7"},
{K_F8, (char_u *)"F8"},
{K_F9, (char_u *)"F9"},
{K_F10, (char_u *)"F10"},
{K_F11, (char_u *)"F11"},
{K_F12, (char_u *)"F12"},
{K_F13, (char_u *)"F13"},
{K_F14, (char_u *)"F14"},
{K_F15, (char_u *)"F15"},
{K_F16, (char_u *)"F16"},
{K_F17, (char_u *)"F17"},
{K_F18, (char_u *)"F18"},
{K_F19, (char_u *)"F19"},
{K_F20, (char_u *)"F20"},
{K_F21, (char_u *)"F21"},
{K_F22, (char_u *)"F22"},
{K_F23, (char_u *)"F23"},
{K_F24, (char_u *)"F24"},
{K_F25, (char_u *)"F25"},
{K_F26, (char_u *)"F26"},
{K_F27, (char_u *)"F27"},
{K_F28, (char_u *)"F28"},
{K_F29, (char_u *)"F29"},
{K_F30, (char_u *)"F30"},
{K_F31, (char_u *)"F31"},
{K_F32, (char_u *)"F32"},
{K_F33, (char_u *)"F33"},
{K_F34, (char_u *)"F34"},
{K_F35, (char_u *)"F35"},
{K_F36, (char_u *)"F36"},
{K_F37, (char_u *)"F37"},
{K_XF1, (char_u *)"xF1"},
{K_XF2, (char_u *)"xF2"},
{K_XF3, (char_u *)"xF3"},
{K_XF4, (char_u *)"xF4"},
{K_HELP, (char_u *)"Help"},
{K_UNDO, (char_u *)"Undo"},
{K_INS, (char_u *)"Insert"},
{K_INS, (char_u *)"Ins"}, /* Alternative name */
{K_KINS, (char_u *)"kInsert"},
{K_HOME, (char_u *)"Home"},
{K_KHOME, (char_u *)"kHome"},
{K_XHOME, (char_u *)"xHome"},
{K_ZHOME, (char_u *)"zHome"},
{K_END, (char_u *)"End"},
{K_KEND, (char_u *)"kEnd"},
{K_XEND, (char_u *)"xEnd"},
{K_ZEND, (char_u *)"zEnd"},
{K_PAGEUP, (char_u *)"PageUp"},
{K_PAGEDOWN, (char_u *)"PageDown"},
{K_KPAGEUP, (char_u *)"kPageUp"},
{K_KPAGEDOWN, (char_u *)"kPageDown"},
{K_KPLUS, (char_u *)"kPlus"},
{K_KMINUS, (char_u *)"kMinus"},
{K_KDIVIDE, (char_u *)"kDivide"},
{K_KMULTIPLY, (char_u *)"kMultiply"},
{K_KENTER, (char_u *)"kEnter"},
{K_KPOINT, (char_u *)"kPoint"},
{K_K0, (char_u *)"k0"},
{K_K1, (char_u *)"k1"},
{K_K2, (char_u *)"k2"},
{K_K3, (char_u *)"k3"},
{K_K4, (char_u *)"k4"},
{K_K5, (char_u *)"k5"},
{K_K6, (char_u *)"k6"},
{K_K7, (char_u *)"k7"},
{K_K8, (char_u *)"k8"},
{K_K9, (char_u *)"k9"},
{'<', (char_u *)"lt"},
{K_MOUSE, (char_u *)"Mouse"},
{K_NETTERM_MOUSE, (char_u *)"NetMouse"},
{K_DEC_MOUSE, (char_u *)"DecMouse"},
{K_JSBTERM_MOUSE, (char_u *)"JsbMouse"},
{K_PTERM_MOUSE, (char_u *)"PtermMouse"},
{K_LEFTMOUSE, (char_u *)"LeftMouse"},
{K_LEFTMOUSE_NM, (char_u *)"LeftMouseNM"},
{K_LEFTDRAG, (char_u *)"LeftDrag"},
{K_LEFTRELEASE, (char_u *)"LeftRelease"},
{K_LEFTRELEASE_NM, (char_u *)"LeftReleaseNM"},
{K_MIDDLEMOUSE, (char_u *)"MiddleMouse"},
{K_MIDDLEDRAG, (char_u *)"MiddleDrag"},
{K_MIDDLERELEASE, (char_u *)"MiddleRelease"},
{K_RIGHTMOUSE, (char_u *)"RightMouse"},
{K_RIGHTDRAG, (char_u *)"RightDrag"},
{K_RIGHTRELEASE, (char_u *)"RightRelease"},
{K_MOUSEDOWN, (char_u *)"ScrollWheelUp"},
{K_MOUSEUP, (char_u *)"ScrollWheelDown"},
{K_MOUSELEFT, (char_u *)"ScrollWheelRight"},
{K_MOUSERIGHT, (char_u *)"ScrollWheelLeft"},
{K_MOUSEDOWN, (char_u *)"MouseDown"}, /* OBSOLETE: Use */
{K_MOUSEUP, (char_u *)"MouseUp"}, /* ScrollWheelXXX instead */
{K_X1MOUSE, (char_u *)"X1Mouse"},
{K_X1DRAG, (char_u *)"X1Drag"},
{K_X1RELEASE, (char_u *)"X1Release"},
{K_X2MOUSE, (char_u *)"X2Mouse"},
{K_X2DRAG, (char_u *)"X2Drag"},
{K_X2RELEASE, (char_u *)"X2Release"},
{K_DROP, (char_u *)"Drop"},
{K_ZERO, (char_u *)"Nul"},
#ifdef FEAT_EVAL
{K_SNR, (char_u *)"SNR"},
#endif
{K_PLUG, (char_u *)"Plug"},
{0, NULL}
};
#define KEY_NAMES_TABLE_LEN (sizeof(key_names_table) / sizeof(struct key_name_entry))
#ifdef FEAT_MOUSE
static struct mousetable
{
int pseudo_code; /* Code for pseudo mouse event */
int button; /* Which mouse button is it? */
int is_click; /* Is it a mouse button click event? */
int is_drag; /* Is it a mouse drag event? */
} mouse_table[] =
{
{(int)KE_LEFTMOUSE, MOUSE_LEFT, TRUE, FALSE},
#ifdef FEAT_GUI
{(int)KE_LEFTMOUSE_NM, MOUSE_LEFT, TRUE, FALSE},
#endif
{(int)KE_LEFTDRAG, MOUSE_LEFT, FALSE, TRUE},
{(int)KE_LEFTRELEASE, MOUSE_LEFT, FALSE, FALSE},
#ifdef FEAT_GUI
{(int)KE_LEFTRELEASE_NM, MOUSE_LEFT, FALSE, FALSE},
#endif
{(int)KE_MIDDLEMOUSE, MOUSE_MIDDLE, TRUE, FALSE},
{(int)KE_MIDDLEDRAG, MOUSE_MIDDLE, FALSE, TRUE},
{(int)KE_MIDDLERELEASE, MOUSE_MIDDLE, FALSE, FALSE},
{(int)KE_RIGHTMOUSE, MOUSE_RIGHT, TRUE, FALSE},
{(int)KE_RIGHTDRAG, MOUSE_RIGHT, FALSE, TRUE},
{(int)KE_RIGHTRELEASE, MOUSE_RIGHT, FALSE, FALSE},
{(int)KE_X1MOUSE, MOUSE_X1, TRUE, FALSE},
{(int)KE_X1DRAG, MOUSE_X1, FALSE, TRUE},
{(int)KE_X1RELEASE, MOUSE_X1, FALSE, FALSE},
{(int)KE_X2MOUSE, MOUSE_X2, TRUE, FALSE},
{(int)KE_X2DRAG, MOUSE_X2, FALSE, TRUE},
{(int)KE_X2RELEASE, MOUSE_X2, FALSE, FALSE},
/* DRAG without CLICK */
{(int)KE_IGNORE, MOUSE_RELEASE, FALSE, TRUE},
/* RELEASE without CLICK */
{(int)KE_IGNORE, MOUSE_RELEASE, FALSE, FALSE},
{0, 0, 0, 0},
};
#endif /* FEAT_MOUSE */
/*
* Return the modifier mask bit (MOD_MASK_*) which corresponds to the given
* modifier name ('S' for Shift, 'C' for Ctrl etc).
*/
int
name_to_mod_mask(c)
int c;
{
int i;
c = TOUPPER_ASC(c);
for (i = 0; mod_mask_table[i].mod_mask != 0; i++)
if (c == mod_mask_table[i].name)
return mod_mask_table[i].mod_flag;
return 0;
}
/*
* Check if if there is a special key code for "key" that includes the
* modifiers specified.
*/
int
simplify_key(key, modifiers)
int key;
int *modifiers;
{
int i;
int key0;
int key1;
if (*modifiers & (MOD_MASK_SHIFT | MOD_MASK_CTRL | MOD_MASK_ALT))
{
/* TAB is a special case */
if (key == TAB && (*modifiers & MOD_MASK_SHIFT))
{
*modifiers &= ~MOD_MASK_SHIFT;
return K_S_TAB;
}
key0 = KEY2TERMCAP0(key);
key1 = KEY2TERMCAP1(key);
for (i = 0; modifier_keys_table[i] != NUL; i += MOD_KEYS_ENTRY_SIZE)
if (key0 == modifier_keys_table[i + 3]
&& key1 == modifier_keys_table[i + 4]
&& (*modifiers & modifier_keys_table[i]))
{
*modifiers &= ~modifier_keys_table[i];
return TERMCAP2KEY(modifier_keys_table[i + 1],
modifier_keys_table[i + 2]);
}
}
return key;
}
/*
* Change <xHome> to <Home>, <xUp> to <Up>, etc.
*/
int
handle_x_keys(key)
int key;
{
switch (key)
{
case K_XUP: return K_UP;
case K_XDOWN: return K_DOWN;
case K_XLEFT: return K_LEFT;
case K_XRIGHT: return K_RIGHT;
case K_XHOME: return K_HOME;
case K_ZHOME: return K_HOME;
case K_XEND: return K_END;
case K_ZEND: return K_END;
case K_XF1: return K_F1;
case K_XF2: return K_F2;
case K_XF3: return K_F3;
case K_XF4: return K_F4;
case K_S_XF1: return K_S_F1;
case K_S_XF2: return K_S_F2;
case K_S_XF3: return K_S_F3;
case K_S_XF4: return K_S_F4;
}
return key;
}
/*
* Return a string which contains the name of the given key when the given
* modifiers are down.
*/
char_u *
get_special_key_name(c, modifiers)
int c;
int modifiers;
{
static char_u string[MAX_KEY_NAME_LEN + 1];
int i, idx;
int table_idx;
char_u *s;
string[0] = '<';
idx = 1;
/* Key that stands for a normal character. */
if (IS_SPECIAL(c) && KEY2TERMCAP0(c) == KS_KEY)
c = KEY2TERMCAP1(c);
/*
* Translate shifted special keys into unshifted keys and set modifier.
* Same for CTRL and ALT modifiers.
*/
if (IS_SPECIAL(c))
{
for (i = 0; modifier_keys_table[i] != 0; i += MOD_KEYS_ENTRY_SIZE)
if ( KEY2TERMCAP0(c) == (int)modifier_keys_table[i + 1]
&& (int)KEY2TERMCAP1(c) == (int)modifier_keys_table[i + 2])
{
modifiers |= modifier_keys_table[i];
c = TERMCAP2KEY(modifier_keys_table[i + 3],
modifier_keys_table[i + 4]);
break;
}
}
/* try to find the key in the special key table */
table_idx = find_special_key_in_table(c);
/*
* When not a known special key, and not a printable character, try to
* extract modifiers.
*/
if (c > 0
#ifdef FEAT_MBYTE
&& (*mb_char2len)(c) == 1
#endif
)
{
if (table_idx < 0
&& (!vim_isprintc(c) || (c & 0x7f) == ' ')
&& (c & 0x80))
{
c &= 0x7f;
modifiers |= MOD_MASK_ALT;
/* try again, to find the un-alted key in the special key table */
table_idx = find_special_key_in_table(c);
}
if (table_idx < 0 && !vim_isprintc(c) && c < ' ')
{
#ifdef EBCDIC
c = CtrlChar(c);
#else
c += '@';
#endif
modifiers |= MOD_MASK_CTRL;
}
}
/* translate the modifier into a string */
for (i = 0; mod_mask_table[i].name != 'A'; i++)
if ((modifiers & mod_mask_table[i].mod_mask)
== mod_mask_table[i].mod_flag)
{
string[idx++] = mod_mask_table[i].name;
string[idx++] = (char_u)'-';
}
if (table_idx < 0) /* unknown special key, may output t_xx */
{
if (IS_SPECIAL(c))
{
string[idx++] = 't';
string[idx++] = '_';
string[idx++] = KEY2TERMCAP0(c);
string[idx++] = KEY2TERMCAP1(c);
}
/* Not a special key, only modifiers, output directly */
else
{
#ifdef FEAT_MBYTE
if (has_mbyte && (*mb_char2len)(c) > 1)
idx += (*mb_char2bytes)(c, string + idx);
else
#endif
if (vim_isprintc(c))
string[idx++] = c;
else
{
s = transchar(c);
while (*s)
string[idx++] = *s++;
}
}
}
else /* use name of special key */
{
STRCPY(string + idx, key_names_table[table_idx].name);
idx = (int)STRLEN(string);
}
string[idx++] = '>';
string[idx] = NUL;
return string;
}
/*
* Try translating a <> name at (*srcp)[] to dst[].
* Return the number of characters added to dst[], zero for no match.
* If there is a match, srcp is advanced to after the <> name.
* dst[] must be big enough to hold the result (up to six characters)!
*/
int
trans_special(srcp, dst, keycode)
char_u **srcp;
char_u *dst;
int keycode; /* prefer key code, e.g. K_DEL instead of DEL */
{
int modifiers = 0;
int key;
int dlen = 0;
key = find_special_key(srcp, &modifiers, keycode, FALSE);
if (key == 0)
return 0;
/* Put the appropriate modifier in a string */
if (modifiers != 0)
{
dst[dlen++] = K_SPECIAL;
dst[dlen++] = KS_MODIFIER;
dst[dlen++] = modifiers;
}
if (IS_SPECIAL(key))
{
dst[dlen++] = K_SPECIAL;
dst[dlen++] = KEY2TERMCAP0(key);
dst[dlen++] = KEY2TERMCAP1(key);
}
#ifdef FEAT_MBYTE
else if (has_mbyte && !keycode)
dlen += (*mb_char2bytes)(key, dst + dlen);
#endif
else if (keycode)
dlen = (int)(add_char2buf(key, dst + dlen) - dst);
else
dst[dlen++] = key;
return dlen;
}
/*
* Try translating a <> name at (*srcp)[], return the key and modifiers.
* srcp is advanced to after the <> name.
* returns 0 if there is no match.
*/
int
find_special_key(srcp, modp, keycode, keep_x_key)
char_u **srcp;
int *modp;
int keycode; /* prefer key code, e.g. K_DEL instead of DEL */
int keep_x_key; /* don't translate xHome to Home key */
{
char_u *last_dash;
char_u *end_of_name;
char_u *src;
char_u *bp;
int modifiers;
int bit;
int key;
unsigned long n;
src = *srcp;
if (src[0] != '<')
return 0;
/* Find end of modifier list */
last_dash = src;
for (bp = src + 1; *bp == '-' || vim_isIDc(*bp); bp++)
{
if (*bp == '-')
{
last_dash = bp;
if (bp[1] != NUL && bp[2] == '>')
++bp; /* anything accepted, like <C-?> */
}
if (bp[0] == 't' && bp[1] == '_' && bp[2] && bp[3])
bp += 3; /* skip t_xx, xx may be '-' or '>' */
}
if (*bp == '>') /* found matching '>' */
{
end_of_name = bp + 1;
if (STRNICMP(src + 1, "char-", 5) == 0 && VIM_ISDIGIT(src[6]))
{
/* <Char-123> or <Char-033> or <Char-0x33> */
vim_str2nr(src + 6, NULL, NULL, TRUE, TRUE, NULL, &n);
*modp = 0;
*srcp = end_of_name;
return (int)n;
}
/* Which modifiers are given? */
modifiers = 0x0;
for (bp = src + 1; bp < last_dash; bp++)
{
if (*bp != '-')
{
bit = name_to_mod_mask(*bp);
if (bit == 0x0)
break; /* Illegal modifier name */
modifiers |= bit;
}
}
/*
* Legal modifier name.
*/
if (bp >= last_dash)
{
/*
* Modifier with single letter, or special key name.
*/
if (modifiers != 0 && last_dash[2] == '>')
key = last_dash[1];
else
{
key = get_special_key_code(last_dash + 1);
if (!keep_x_key)
key = handle_x_keys(key);
}
/*
* get_special_key_code() may return NUL for invalid
* special key name.
*/
if (key != NUL)
{
/*
* Only use a modifier when there is no special key code that
* includes the modifier.
*/
key = simplify_key(key, &modifiers);
if (!keycode)
{
/* don't want keycode, use single byte code */
if (key == K_BS)
key = BS;
else if (key == K_DEL || key == K_KDEL)
key = DEL;
}
/*
* Normal Key with modifier: Try to make a single byte code.
*/
if (!IS_SPECIAL(key))
key = extract_modifiers(key, &modifiers);
*modp = modifiers;
*srcp = end_of_name;
return key;
}
}
}
return 0;
}
/*
* Try to include modifiers in the key.
* Changes "Shift-a" to 'A', "Alt-A" to 0xc0, etc.
*/
int
extract_modifiers(key, modp)
int key;
int *modp;
{
int modifiers = *modp;
#ifdef MACOS
/* Command-key really special, No fancynest */
if (!(modifiers & MOD_MASK_CMD))
#endif
if ((modifiers & MOD_MASK_SHIFT) && ASCII_ISALPHA(key))
{
key = TOUPPER_ASC(key);
modifiers &= ~MOD_MASK_SHIFT;
}
if ((modifiers & MOD_MASK_CTRL)
#ifdef EBCDIC
/* * TODO: EBCDIC Better use:
* && (Ctrl_chr(key) || key == '?')
* ??? */
&& strchr("?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_", key)
!= NULL
#else
&& ((key >= '?' && key <= '_') || ASCII_ISALPHA(key))
#endif
)
{
key = Ctrl_chr(key);
modifiers &= ~MOD_MASK_CTRL;
/* <C-@> is <Nul> */
if (key == 0)
key = K_ZERO;
}
#ifdef MACOS
/* Command-key really special, No fancynest */
if (!(modifiers & MOD_MASK_CMD))
#endif
if ((modifiers & MOD_MASK_ALT) && key < 0x80
#ifdef FEAT_MBYTE
&& !enc_dbcs /* avoid creating a lead byte */
#endif
)
{
key |= 0x80;
modifiers &= ~MOD_MASK_ALT; /* remove the META modifier */
}
*modp = modifiers;
return key;
}
/*
* Try to find key "c" in the special key table.
* Return the index when found, -1 when not found.
*/
int
find_special_key_in_table(c)
int c;
{
int i;
for (i = 0; key_names_table[i].name != NULL; i++)
if (c == key_names_table[i].key)
break;
if (key_names_table[i].name == NULL)
i = -1;
return i;
}
/*
* Find the special key with the given name (the given string does not have to
* end with NUL, the name is assumed to end before the first non-idchar).
* If the name starts with "t_" the next two characters are interpreted as a
* termcap name.
* Return the key code, or 0 if not found.
*/
int
get_special_key_code(name)
char_u *name;
{
char_u *table_name;
char_u string[3];
int i, j;
/*
* If it's <t_xx> we get the code for xx from the termcap
*/
if (name[0] == 't' && name[1] == '_' && name[2] != NUL && name[3] != NUL)
{
string[0] = name[2];
string[1] = name[3];
string[2] = NUL;
if (add_termcap_entry(string, FALSE) == OK)
return TERMCAP2KEY(name[2], name[3]);
}
else
for (i = 0; key_names_table[i].name != NULL; i++)
{
table_name = key_names_table[i].name;
for (j = 0; vim_isIDc(name[j]) && table_name[j] != NUL; j++)
if (TOLOWER_ASC(table_name[j]) != TOLOWER_ASC(name[j]))
break;
if (!vim_isIDc(name[j]) && table_name[j] == NUL)
return key_names_table[i].key;
}
return 0;
}
#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
char_u *
get_key_name(i)
int i;
{
if (i >= (int)KEY_NAMES_TABLE_LEN)
return NULL;
return key_names_table[i].name;
}
#endif
#if defined(FEAT_MOUSE) || defined(PROTO)
/*
* Look up the given mouse code to return the relevant information in the other
* arguments. Return which button is down or was released.
*/
int
get_mouse_button(code, is_click, is_drag)
int code;
int *is_click;
int *is_drag;
{
int i;
for (i = 0; mouse_table[i].pseudo_code; i++)
if (code == mouse_table[i].pseudo_code)
{
*is_click = mouse_table[i].is_click;
*is_drag = mouse_table[i].is_drag;
return mouse_table[i].button;
}
return 0; /* Shouldn't get here */
}
/*
* Return the appropriate pseudo mouse event token (KE_LEFTMOUSE etc) based on
* the given information about which mouse button is down, and whether the
* mouse was clicked, dragged or released.
*/
int
get_pseudo_mouse_code(button, is_click, is_drag)
int button; /* eg MOUSE_LEFT */
int is_click;
int is_drag;
{
int i;
for (i = 0; mouse_table[i].pseudo_code; i++)
if (button == mouse_table[i].button
&& is_click == mouse_table[i].is_click
&& is_drag == mouse_table[i].is_drag)
{
#ifdef FEAT_GUI
/* Trick: a non mappable left click and release has mouse_col -1
* or added MOUSE_COLOFF. Used for 'mousefocus' in
* gui_mouse_moved() */
if (mouse_col < 0 || mouse_col > MOUSE_COLOFF)
{
if (mouse_col < 0)
mouse_col = 0;
else
mouse_col -= MOUSE_COLOFF;
if (mouse_table[i].pseudo_code == (int)KE_LEFTMOUSE)
return (int)KE_LEFTMOUSE_NM;
if (mouse_table[i].pseudo_code == (int)KE_LEFTRELEASE)
return (int)KE_LEFTRELEASE_NM;
}
#endif
return mouse_table[i].pseudo_code;
}
return (int)KE_IGNORE; /* not recognized, ignore it */
}
#endif /* FEAT_MOUSE */
/*
* Return the current end-of-line type: EOL_DOS, EOL_UNIX or EOL_MAC.
*/
int
get_fileformat(buf)
buf_T *buf;
{
int c = *buf->b_p_ff;
if (buf->b_p_bin || c == 'u')
return EOL_UNIX;
if (c == 'm')
return EOL_MAC;
return EOL_DOS;
}
/*
* Like get_fileformat(), but override 'fileformat' with "p" for "++opt=val"
* argument.
*/
int
get_fileformat_force(buf, eap)
buf_T *buf;
exarg_T *eap; /* can be NULL! */
{
int c;
if (eap != NULL && eap->force_ff != 0)
c = eap->cmd[eap->force_ff];
else
{
if ((eap != NULL && eap->force_bin != 0)
? (eap->force_bin == FORCE_BIN) : buf->b_p_bin)
return EOL_UNIX;
c = *buf->b_p_ff;
}
if (c == 'u')
return EOL_UNIX;
if (c == 'm')
return EOL_MAC;
return EOL_DOS;
}
/*
* Set the current end-of-line type to EOL_DOS, EOL_UNIX or EOL_MAC.
* Sets both 'textmode' and 'fileformat'.
* Note: Does _not_ set global value of 'textmode'!
*/
void
set_fileformat(t, opt_flags)
int t;
int opt_flags; /* OPT_LOCAL and/or OPT_GLOBAL */
{
char *p = NULL;
switch (t)
{
case EOL_DOS:
p = FF_DOS;
curbuf->b_p_tx = TRUE;
break;
case EOL_UNIX:
p = FF_UNIX;
curbuf->b_p_tx = FALSE;
break;
case EOL_MAC:
p = FF_MAC;
curbuf->b_p_tx = FALSE;
break;
}
if (p != NULL)
set_string_option_direct((char_u *)"ff", -1, (char_u *)p,
OPT_FREE | opt_flags, 0);
#ifdef FEAT_WINDOWS
/* This may cause the buffer to become (un)modified. */
check_status(curbuf);
redraw_tabline = TRUE;
#endif
#ifdef FEAT_TITLE
need_maketitle = TRUE; /* set window title later */
#endif
}
/*
* Return the default fileformat from 'fileformats'.
*/
int
default_fileformat()
{
switch (*p_ffs)
{
case 'm': return EOL_MAC;
case 'd': return EOL_DOS;
}
return EOL_UNIX;
}
/*
* Call shell. Calls mch_call_shell, with 'shellxquote' added.
*/
int
call_shell(cmd, opt)
char_u *cmd;
int opt;
{
char_u *ncmd;
int retval;
#ifdef FEAT_PROFILE
proftime_T wait_time;
#endif
if (p_verbose > 3)
{
verbose_enter();
smsg((char_u *)_("Calling shell to execute: \"%s\""),
cmd == NULL ? p_sh : cmd);
out_char('\n');
cursor_on();
verbose_leave();
}
#ifdef FEAT_PROFILE
if (do_profiling == PROF_YES)
prof_child_enter(&wait_time);
#endif
if (*p_sh == NUL)
{
EMSG(_(e_shellempty));
retval = -1;
}
else
{
#ifdef FEAT_GUI_MSWIN
/* Don't hide the pointer while executing a shell command. */
gui_mch_mousehide(FALSE);
#endif
#ifdef FEAT_GUI
++hold_gui_events;
#endif
/* The external command may update a tags file, clear cached tags. */
tag_freematch();
if (cmd == NULL || *p_sxq == NUL)
retval = mch_call_shell(cmd, opt);
else
{
ncmd = alloc((unsigned)(STRLEN(cmd) + STRLEN(p_sxq) * 2 + 1));
if (ncmd != NULL)
{
STRCPY(ncmd, p_sxq);
STRCAT(ncmd, cmd);
STRCAT(ncmd, p_sxq);
retval = mch_call_shell(ncmd, opt);
vim_free(ncmd);
}
else
retval = -1;
}
#ifdef FEAT_GUI
--hold_gui_events;
#endif
/*
* Check the window size, in case it changed while executing the
* external command.
*/
shell_resized_check();
}
#ifdef FEAT_EVAL
set_vim_var_nr(VV_SHELL_ERROR, (long)retval);
# ifdef FEAT_PROFILE
if (do_profiling == PROF_YES)
prof_child_exit(&wait_time);
# endif
#endif
return retval;
}
/*
* VISUAL, SELECTMODE and OP_PENDING State are never set, they are equal to
* NORMAL State with a condition. This function returns the real State.
*/
int
get_real_state()
{
if (State & NORMAL)
{
#ifdef FEAT_VISUAL
if (VIsual_active)
{
if (VIsual_select)
return SELECTMODE;
return VISUAL;
}
else
#endif
if (finish_op)
return OP_PENDING;
}
return State;
}
#if defined(FEAT_MBYTE) || defined(PROTO)
/*
* Return TRUE if "p" points to just after a path separator.
* Take care of multi-byte characters.
* "b" must point to the start of the file name
*/
int
after_pathsep(b, p)
char_u *b;
char_u *p;
{
return vim_ispathsep(p[-1])
&& (!has_mbyte || (*mb_head_off)(b, p - 1) == 0);
}
#endif
/*
* Return TRUE if file names "f1" and "f2" are in the same directory.
* "f1" may be a short name, "f2" must be a full path.
*/
int
same_directory(f1, f2)
char_u *f1;
char_u *f2;
{
char_u ffname[MAXPATHL];
char_u *t1;
char_u *t2;
/* safety check */
if (f1 == NULL || f2 == NULL)
return FALSE;
(void)vim_FullName(f1, ffname, MAXPATHL, FALSE);
t1 = gettail_sep(ffname);
t2 = gettail_sep(f2);
return (t1 - ffname == t2 - f2
&& pathcmp((char *)ffname, (char *)f2, (int)(t1 - ffname)) == 0);
}
#if defined(FEAT_SESSION) || defined(MSWIN) || defined(FEAT_GUI_MAC) \
|| ((defined(FEAT_GUI_GTK)) \
&& ( defined(FEAT_WINDOWS) || defined(FEAT_DND)) ) \
|| defined(FEAT_SUN_WORKSHOP) || defined(FEAT_NETBEANS_INTG) \
|| defined(PROTO)
/*
* Change to a file's directory.
* Caller must call shorten_fnames()!
* Return OK or FAIL.
*/
int
vim_chdirfile(fname)
char_u *fname;
{
char_u dir[MAXPATHL];
vim_strncpy(dir, fname, MAXPATHL - 1);
*gettail_sep(dir) = NUL;
return mch_chdir((char *)dir) == 0 ? OK : FAIL;
}
#endif
#if defined(STAT_IGNORES_SLASH) || defined(PROTO)
/*
* Check if "name" ends in a slash and is not a directory.
* Used for systems where stat() ignores a trailing slash on a file name.
* The Vim code assumes a trailing slash is only ignored for a directory.
*/
int
illegal_slash(name)
char *name;
{
if (name[0] == NUL)
return FALSE; /* no file name is not illegal */
if (name[strlen(name) - 1] != '/')
return FALSE; /* no trailing slash */
if (mch_isdir((char_u *)name))
return FALSE; /* trailing slash for a directory */
return TRUE;
}
#endif
#if defined(CURSOR_SHAPE) || defined(PROTO)
/*
* Handling of cursor and mouse pointer shapes in various modes.
*/
cursorentry_T shape_table[SHAPE_IDX_COUNT] =
{
/* The values will be filled in from the 'guicursor' and 'mouseshape'
* defaults when Vim starts.
* Adjust the SHAPE_IDX_ defines when making changes! */
{0, 0, 0, 700L, 400L, 250L, 0, 0, "n", SHAPE_CURSOR+SHAPE_MOUSE},
{0, 0, 0, 700L, 400L, 250L, 0, 0, "v", SHAPE_CURSOR+SHAPE_MOUSE},
{0, 0, 0, 700L, 400L, 250L, 0, 0, "i", SHAPE_CURSOR+SHAPE_MOUSE},
{0, 0, 0, 700L, 400L, 250L, 0, 0, "r", SHAPE_CURSOR+SHAPE_MOUSE},
{0, 0, 0, 700L, 400L, 250L, 0, 0, "c", SHAPE_CURSOR+SHAPE_MOUSE},
{0, 0, 0, 700L, 400L, 250L, 0, 0, "ci", SHAPE_CURSOR+SHAPE_MOUSE},
{0, 0, 0, 700L, 400L, 250L, 0, 0, "cr", SHAPE_CURSOR+SHAPE_MOUSE},
{0, 0, 0, 700L, 400L, 250L, 0, 0, "o", SHAPE_CURSOR+SHAPE_MOUSE},
{0, 0, 0, 700L, 400L, 250L, 0, 0, "ve", SHAPE_CURSOR+SHAPE_MOUSE},
{0, 0, 0, 0L, 0L, 0L, 0, 0, "e", SHAPE_MOUSE},
{0, 0, 0, 0L, 0L, 0L, 0, 0, "s", SHAPE_MOUSE},
{0, 0, 0, 0L, 0L, 0L, 0, 0, "sd", SHAPE_MOUSE},
{0, 0, 0, 0L, 0L, 0L, 0, 0, "vs", SHAPE_MOUSE},
{0, 0, 0, 0L, 0L, 0L, 0, 0, "vd", SHAPE_MOUSE},
{0, 0, 0, 0L, 0L, 0L, 0, 0, "m", SHAPE_MOUSE},
{0, 0, 0, 0L, 0L, 0L, 0, 0, "ml", SHAPE_MOUSE},
{0, 0, 0, 100L, 100L, 100L, 0, 0, "sm", SHAPE_CURSOR},
};
#ifdef FEAT_MOUSESHAPE
/*
* Table with names for mouse shapes. Keep in sync with all the tables for
* mch_set_mouse_shape()!.
*/
static char * mshape_names[] =
{
"arrow", /* default, must be the first one */
"blank", /* hidden */
"beam",
"updown",
"udsizing",
"leftright",
"lrsizing",
"busy",
"no",
"crosshair",
"hand1",
"hand2",
"pencil",
"question",
"rightup-arrow",
"up-arrow",
NULL
};
#endif
/*
* Parse the 'guicursor' option ("what" is SHAPE_CURSOR) or 'mouseshape'
* ("what" is SHAPE_MOUSE).
* Returns error message for an illegal option, NULL otherwise.
*/
char_u *
parse_shape_opt(what)
int what;
{
char_u *modep;
char_u *colonp;
char_u *commap;
char_u *slashp;
char_u *p, *endp;
int idx = 0; /* init for GCC */
int all_idx;
int len;
int i;
long n;
int found_ve = FALSE; /* found "ve" flag */
int round;
/*
* First round: check for errors; second round: do it for real.
*/
for (round = 1; round <= 2; ++round)
{
/*
* Repeat for all comma separated parts.
*/
#ifdef FEAT_MOUSESHAPE
if (what == SHAPE_MOUSE)
modep = p_mouseshape;
else
#endif
modep = p_guicursor;
while (*modep != NUL)
{
colonp = vim_strchr(modep, ':');
if (colonp == NULL)
return (char_u *)N_("E545: Missing colon");
if (colonp == modep)
return (char_u *)N_("E546: Illegal mode");
commap = vim_strchr(modep, ',');
/*
* Repeat for all mode's before the colon.
* For the 'a' mode, we loop to handle all the modes.
*/
all_idx = -1;
while (modep < colonp || all_idx >= 0)
{
if (all_idx < 0)
{
/* Find the mode. */
if (modep[1] == '-' || modep[1] == ':')
len = 1;
else
len = 2;
if (len == 1 && TOLOWER_ASC(modep[0]) == 'a')
all_idx = SHAPE_IDX_COUNT - 1;
else
{
for (idx = 0; idx < SHAPE_IDX_COUNT; ++idx)
if (STRNICMP(modep, shape_table[idx].name, len)
== 0)
break;
if (idx == SHAPE_IDX_COUNT
|| (shape_table[idx].used_for & what) == 0)
return (char_u *)N_("E546: Illegal mode");
if (len == 2 && modep[0] == 'v' && modep[1] == 'e')
found_ve = TRUE;
}
modep += len + 1;
}
if (all_idx >= 0)
idx = all_idx--;
else if (round == 2)
{
#ifdef FEAT_MOUSESHAPE
if (what == SHAPE_MOUSE)
{
/* Set the default, for the missing parts */
shape_table[idx].mshape = 0;
}
else
#endif
{
/* Set the defaults, for the missing parts */
shape_table[idx].shape = SHAPE_BLOCK;
shape_table[idx].blinkwait = 700L;
shape_table[idx].blinkon = 400L;
shape_table[idx].blinkoff = 250L;
}
}
/* Parse the part after the colon */
for (p = colonp + 1; *p && *p != ','; )
{
#ifdef FEAT_MOUSESHAPE
if (what == SHAPE_MOUSE)
{
for (i = 0; ; ++i)
{
if (mshape_names[i] == NULL)
{
if (!VIM_ISDIGIT(*p))
return (char_u *)N_("E547: Illegal mouseshape");
if (round == 2)
shape_table[idx].mshape =
getdigits(&p) + MSHAPE_NUMBERED;
else
(void)getdigits(&p);
break;
}
len = (int)STRLEN(mshape_names[i]);
if (STRNICMP(p, mshape_names[i], len) == 0)
{
if (round == 2)
shape_table[idx].mshape = i;
p += len;
break;
}
}
}
else /* if (what == SHAPE_MOUSE) */
#endif
{
/*
* First handle the ones with a number argument.
*/
i = *p;
len = 0;
if (STRNICMP(p, "ver", 3) == 0)
len = 3;
else if (STRNICMP(p, "hor", 3) == 0)
len = 3;
else if (STRNICMP(p, "blinkwait", 9) == 0)
len = 9;
else if (STRNICMP(p, "blinkon", 7) == 0)
len = 7;
else if (STRNICMP(p, "blinkoff", 8) == 0)
len = 8;
if (len != 0)
{
p += len;
if (!VIM_ISDIGIT(*p))
return (char_u *)N_("E548: digit expected");
n = getdigits(&p);
if (len == 3) /* "ver" or "hor" */
{
if (n == 0)
return (char_u *)N_("E549: Illegal percentage");
if (round == 2)
{
if (TOLOWER_ASC(i) == 'v')
shape_table[idx].shape = SHAPE_VER;
else
shape_table[idx].shape = SHAPE_HOR;
shape_table[idx].percentage = n;
}
}
else if (round == 2)
{
if (len == 9)
shape_table[idx].blinkwait = n;
else if (len == 7)
shape_table[idx].blinkon = n;
else
shape_table[idx].blinkoff = n;
}
}
else if (STRNICMP(p, "block", 5) == 0)
{
if (round == 2)
shape_table[idx].shape = SHAPE_BLOCK;
p += 5;
}
else /* must be a highlight group name then */
{
endp = vim_strchr(p, '-');
if (commap == NULL) /* last part */
{
if (endp == NULL)
endp = p + STRLEN(p); /* find end of part */
}
else if (endp > commap || endp == NULL)
endp = commap;
slashp = vim_strchr(p, '/');
if (slashp != NULL && slashp < endp)
{
/* "group/langmap_group" */
i = syn_check_group(p, (int)(slashp - p));
p = slashp + 1;
}
if (round == 2)
{
shape_table[idx].id = syn_check_group(p,
(int)(endp - p));
shape_table[idx].id_lm = shape_table[idx].id;
if (slashp != NULL && slashp < endp)
shape_table[idx].id = i;
}
p = endp;
}
} /* if (what != SHAPE_MOUSE) */
if (*p == '-')
++p;
}
}
modep = p;
if (*modep == ',')
++modep;
}
}
/* If the 's' flag is not given, use the 'v' cursor for 's' */
if (!found_ve)
{
#ifdef FEAT_MOUSESHAPE
if (what == SHAPE_MOUSE)
{
shape_table[SHAPE_IDX_VE].mshape = shape_table[SHAPE_IDX_V].mshape;
}
else
#endif
{
shape_table[SHAPE_IDX_VE].shape = shape_table[SHAPE_IDX_V].shape;
shape_table[SHAPE_IDX_VE].percentage =
shape_table[SHAPE_IDX_V].percentage;
shape_table[SHAPE_IDX_VE].blinkwait =
shape_table[SHAPE_IDX_V].blinkwait;
shape_table[SHAPE_IDX_VE].blinkon =
shape_table[SHAPE_IDX_V].blinkon;
shape_table[SHAPE_IDX_VE].blinkoff =
shape_table[SHAPE_IDX_V].blinkoff;
shape_table[SHAPE_IDX_VE].id = shape_table[SHAPE_IDX_V].id;
shape_table[SHAPE_IDX_VE].id_lm = shape_table[SHAPE_IDX_V].id_lm;
}
}
return NULL;
}
# if defined(MCH_CURSOR_SHAPE) || defined(FEAT_GUI) \
|| defined(FEAT_MOUSESHAPE) || defined(PROTO)
/*
* Return the index into shape_table[] for the current mode.
* When "mouse" is TRUE, consider indexes valid for the mouse pointer.
*/
int
get_shape_idx(mouse)
int mouse;
{
#ifdef FEAT_MOUSESHAPE
if (mouse && (State == HITRETURN || State == ASKMORE))
{
# ifdef FEAT_GUI
int x, y;
gui_mch_getmouse(&x, &y);
if (Y_2_ROW(y) == Rows - 1)
return SHAPE_IDX_MOREL;
# endif
return SHAPE_IDX_MORE;
}
if (mouse && drag_status_line)
return SHAPE_IDX_SDRAG;
# ifdef FEAT_VERTSPLIT
if (mouse && drag_sep_line)
return SHAPE_IDX_VDRAG;
# endif
#endif
if (!mouse && State == SHOWMATCH)
return SHAPE_IDX_SM;
#ifdef FEAT_VREPLACE
if (State & VREPLACE_FLAG)
return SHAPE_IDX_R;
#endif
if (State & REPLACE_FLAG)
return SHAPE_IDX_R;
if (State & INSERT)
return SHAPE_IDX_I;
if (State & CMDLINE)
{
if (cmdline_at_end())
return SHAPE_IDX_C;
if (cmdline_overstrike())
return SHAPE_IDX_CR;
return SHAPE_IDX_CI;
}
if (finish_op)
return SHAPE_IDX_O;
#ifdef FEAT_VISUAL
if (VIsual_active)
{
if (*p_sel == 'e')
return SHAPE_IDX_VE;
else
return SHAPE_IDX_V;
}
#endif
return SHAPE_IDX_N;
}
#endif
# if defined(FEAT_MOUSESHAPE) || defined(PROTO)
static int old_mouse_shape = 0;
/*
* Set the mouse shape:
* If "shape" is -1, use shape depending on the current mode,
* depending on the current state.
* If "shape" is -2, only update the shape when it's CLINE or STATUS (used
* when the mouse moves off the status or command line).
*/
void
update_mouseshape(shape_idx)
int shape_idx;
{
int new_mouse_shape;
/* Only works in GUI mode. */
if (!gui.in_use || gui.starting)
return;
/* Postpone the updating when more is to come. Speeds up executing of
* mappings. */
if (shape_idx == -1 && char_avail())
{
postponed_mouseshape = TRUE;
return;
}
/* When ignoring the mouse don't change shape on the statusline. */
if (*p_mouse == NUL
&& (shape_idx == SHAPE_IDX_CLINE
|| shape_idx == SHAPE_IDX_STATUS
|| shape_idx == SHAPE_IDX_VSEP))
shape_idx = -2;
if (shape_idx == -2
&& old_mouse_shape != shape_table[SHAPE_IDX_CLINE].mshape
&& old_mouse_shape != shape_table[SHAPE_IDX_STATUS].mshape
&& old_mouse_shape != shape_table[SHAPE_IDX_VSEP].mshape)
return;
if (shape_idx < 0)
new_mouse_shape = shape_table[get_shape_idx(TRUE)].mshape;
else
new_mouse_shape = shape_table[shape_idx].mshape;
if (new_mouse_shape != old_mouse_shape)
{
mch_set_mouse_shape(new_mouse_shape);
old_mouse_shape = new_mouse_shape;
}
postponed_mouseshape = FALSE;
}
# endif
#endif /* CURSOR_SHAPE */
#ifdef FEAT_CRYPT
/*
* Optional encryption support.
* Mohsin Ahmed, mosh@sasi.com, 98-09-24
* Based on zip/crypt sources.
*
* NOTE FOR USA: Since 2000 exporting this code from the USA is allowed to
* most countries. There are a few exceptions, but that still should not be a
* problem since this code was originally created in Europe and India.
*
* Blowfish addition originally made by Mohsin Ahmed,
* http://www.cs.albany.edu/~mosh 2010-03-14
* Based on blowfish by Bruce Schneier (http://www.schneier.com/blowfish.html)
* and sha256 by Christophe Devine.
*/
/* from zip.h */
typedef unsigned short ush; /* unsigned 16-bit value */
typedef unsigned long ulg; /* unsigned 32-bit value */
static void make_crc_tab __ARGS((void));
static ulg crc_32_tab[256];
/*
* Fill the CRC table.
*/
static void
make_crc_tab()
{
ulg s,t,v;
static int done = FALSE;
if (done)
return;
for (t = 0; t < 256; t++)
{
v = t;
for (s = 0; s < 8; s++)
v = (v >> 1) ^ ((v & 1) * (ulg)0xedb88320L);
crc_32_tab[t] = v;
}
done = TRUE;
}
#define CRC32(c, b) (crc_32_tab[((int)(c) ^ (b)) & 0xff] ^ ((c) >> 8))
static ulg keys[3]; /* keys defining the pseudo-random sequence */
/*
* Return the next byte in the pseudo-random sequence.
*/
#define DECRYPT_BYTE_ZIP(t) { \
ush temp; \
\
temp = (ush)keys[2] | 2; \
t = (int)(((unsigned)(temp * (temp ^ 1)) >> 8) & 0xff); \
}
/*
* Update the encryption keys with the next byte of plain text.
*/
#define UPDATE_KEYS_ZIP(c) { \
keys[0] = CRC32(keys[0], (c)); \
keys[1] += keys[0] & 0xff; \
keys[1] = keys[1] * 134775813L + 1; \
keys[2] = CRC32(keys[2], (int)(keys[1] >> 24)); \
}
static int crypt_busy = 0;
static ulg saved_keys[3];
static int saved_crypt_method;
/*
* Return int value for crypt method string:
* 0 for "zip", the old method. Also for any non-valid value.
* 1 for "blowfish".
*/
int
crypt_method_from_string(s)
char_u *s;
{
return *s == 'b' ? 1 : 0;
}
/*
* Get the crypt method for buffer "buf" as a number.
*/
int
get_crypt_method(buf)
buf_T *buf;
{
return crypt_method_from_string(*buf->b_p_cm == NUL ? p_cm : buf->b_p_cm);
}
/*
* Set the crypt method for buffer "buf" to "method" using the int value as
* returned by crypt_method_from_string().
*/
void
set_crypt_method(buf, method)
buf_T *buf;
int method;
{
free_string_option(buf->b_p_cm);
buf->b_p_cm = vim_strsave((char_u *)(method == 0 ? "zip" : "blowfish"));
}
/*
* Prepare for initializing encryption. If already doing encryption then save
* the state.
* Must always be called symmetrically with crypt_pop_state().
*/
void
crypt_push_state()
{
if (crypt_busy == 1)
{
/* save the state */
if (use_crypt_method == 0)
{
saved_keys[0] = keys[0];
saved_keys[1] = keys[1];
saved_keys[2] = keys[2];
}
else
bf_crypt_save();
saved_crypt_method = use_crypt_method;
}
else if (crypt_busy > 1)
EMSG2(_(e_intern2), "crypt_push_state()");
++crypt_busy;
}
/*
* End encryption. If doing encryption before crypt_push_state() then restore
* the saved state.
* Must always be called symmetrically with crypt_push_state().
*/
void
crypt_pop_state()
{
--crypt_busy;
if (crypt_busy == 1)
{
use_crypt_method = saved_crypt_method;
if (use_crypt_method == 0)
{
keys[0] = saved_keys[0];
keys[1] = saved_keys[1];
keys[2] = saved_keys[2];
}
else
bf_crypt_restore();
}
}
/*
* Encrypt "from[len]" into "to[len]".
* "from" and "to" can be equal to encrypt in place.
*/
void
crypt_encode(from, len, to)
char_u *from;
size_t len;
char_u *to;
{
size_t i;
int ztemp, t;
if (use_crypt_method == 0)
for (i = 0; i < len; ++i)
{
ztemp = from[i];
DECRYPT_BYTE_ZIP(t);
UPDATE_KEYS_ZIP(ztemp);
to[i] = t ^ ztemp;
}
else
bf_crypt_encode(from, len, to);
}
/*
* Decrypt "ptr[len]" in place.
*/
void
crypt_decode(ptr, len)
char_u *ptr;
long len;
{
char_u *p;
if (use_crypt_method == 0)
for (p = ptr; p < ptr + len; ++p)
{
ush temp;
temp = (ush)keys[2] | 2;
temp = (int)(((unsigned)(temp * (temp ^ 1)) >> 8) & 0xff);
UPDATE_KEYS_ZIP(*p ^= temp);
}
else
bf_crypt_decode(ptr, len);
}
/*
* Initialize the encryption keys and the random header according to
* the given password.
* If "passwd" is NULL or empty, don't do anything.
*/
void
crypt_init_keys(passwd)
char_u *passwd; /* password string with which to modify keys */
{
if (passwd != NULL && *passwd != NUL)
{
if (use_crypt_method == 0)
{
char_u *p;
make_crc_tab();
keys[0] = 305419896L;
keys[1] = 591751049L;
keys[2] = 878082192L;
for (p = passwd; *p!= NUL; ++p)
{
UPDATE_KEYS_ZIP((int)*p);
}
}
else
bf_crypt_init_keys(passwd);
}
}
/*
* Free an allocated crypt key. Clear the text to make sure it doesn't stay
* in memory anywhere.
*/
void
free_crypt_key(key)
char_u *key;
{
char_u *p;
if (key != NULL)
{
for (p = key; *p != NUL; ++p)
*p = 0;
vim_free(key);
}
}
/*
* Ask the user for a crypt key.
* When "store" is TRUE, the new key is stored in the 'key' option, and the
* 'key' option value is returned: Don't free it.
* When "store" is FALSE, the typed key is returned in allocated memory.
* Returns NULL on failure.
*/
char_u *
get_crypt_key(store, twice)
int store;
int twice; /* Ask for the key twice. */
{
char_u *p1, *p2 = NULL;
int round;
for (round = 0; ; ++round)
{
cmdline_star = TRUE;
cmdline_row = msg_row;
p1 = getcmdline_prompt(NUL, round == 0
? (char_u *)_("Enter encryption key: ")
: (char_u *)_("Enter same key again: "), 0, EXPAND_NOTHING,
NULL);
cmdline_star = FALSE;
if (p1 == NULL)
break;
if (round == twice)
{
if (p2 != NULL && STRCMP(p1, p2) != 0)
{
MSG(_("Keys don't match!"));
free_crypt_key(p1);
free_crypt_key(p2);
p2 = NULL;
round = -1; /* do it again */
continue;
}
if (store)
{
set_option_value((char_u *)"key", 0L, p1, OPT_LOCAL);
free_crypt_key(p1);
p1 = curbuf->b_p_key;
}
break;
}
p2 = p1;
}
/* since the user typed this, no need to wait for return */
if (msg_didout)
msg_putchar('\n');
need_wait_return = FALSE;
msg_didout = FALSE;
free_crypt_key(p2);
return p1;
}
#endif /* FEAT_CRYPT */
/* TODO: make some #ifdef for this */
/*--------[ file searching ]-------------------------------------------------*/
/*
* File searching functions for 'path', 'tags' and 'cdpath' options.
* External visible functions:
* vim_findfile_init() creates/initialises the search context
* vim_findfile_free_visited() free list of visited files/dirs of search
* context
* vim_findfile() find a file in the search context
* vim_findfile_cleanup() cleanup/free search context created by
* vim_findfile_init()
*
* All static functions and variables start with 'ff_'
*
* In general it works like this:
* First you create yourself a search context by calling vim_findfile_init().
* It is possible to give a search context from a previous call to
* vim_findfile_init(), so it can be reused. After this you call vim_findfile()
* until you are satisfied with the result or it returns NULL. On every call it
* returns the next file which matches the conditions given to
* vim_findfile_init(). If it doesn't find a next file it returns NULL.
*
* It is possible to call vim_findfile_init() again to reinitialise your search
* with some new parameters. Don't forget to pass your old search context to
* it, so it can reuse it and especially reuse the list of already visited
* directories. If you want to delete the list of already visited directories
* simply call vim_findfile_free_visited().
*
* When you are done call vim_findfile_cleanup() to free the search context.
*
* The function vim_findfile_init() has a long comment, which describes the
* needed parameters.
*
*
*
* ATTENTION:
* ==========
* Also we use an allocated search context here, this functions are NOT
* thread-safe!!!!!
*
* To minimize parameter passing (or because I'm to lazy), only the
* external visible functions get a search context as a parameter. This is
* then assigned to a static global, which is used throughout the local
* functions.
*/
/*
* type for the directory search stack
*/
typedef struct ff_stack
{
struct ff_stack *ffs_prev;
/* the fix part (no wildcards) and the part containing the wildcards
* of the search path
*/
char_u *ffs_fix_path;
#ifdef FEAT_PATH_EXTRA
char_u *ffs_wc_path;
#endif
/* files/dirs found in the above directory, matched by the first wildcard
* of wc_part
*/
char_u **ffs_filearray;
int ffs_filearray_size;
char_u ffs_filearray_cur; /* needed for partly handled dirs */
/* to store status of partly handled directories
* 0: we work on this directory for the first time
* 1: this directory was partly searched in an earlier step
*/
int ffs_stage;
/* How deep are we in the directory tree?
* Counts backward from value of level parameter to vim_findfile_init
*/
int ffs_level;
/* Did we already expand '**' to an empty string? */
int ffs_star_star_empty;
} ff_stack_T;
/*
* type for already visited directories or files.
*/
typedef struct ff_visited
{
struct ff_visited *ffv_next;
#ifdef FEAT_PATH_EXTRA
/* Visited directories are different if the wildcard string are
* different. So we have to save it.
*/
char_u *ffv_wc_path;
#endif
/* for unix use inode etc for comparison (needed because of links), else
* use filename.
*/
#ifdef UNIX
int ffv_dev_valid; /* ffv_dev and ffv_ino were set */
dev_t ffv_dev; /* device number */
ino_t ffv_ino; /* inode number */
#endif
/* The memory for this struct is allocated according to the length of
* ffv_fname.
*/
char_u ffv_fname[1]; /* actually longer */
} ff_visited_T;
/*
* We might have to manage several visited lists during a search.
* This is especially needed for the tags option. If tags is set to:
* "./++/tags,./++/TAGS,++/tags" (replace + with *)
* So we have to do 3 searches:
* 1) search from the current files directory downward for the file "tags"
* 2) search from the current files directory downward for the file "TAGS"
* 3) search from Vims current directory downwards for the file "tags"
* As you can see, the first and the third search are for the same file, so for
* the third search we can use the visited list of the first search. For the
* second search we must start from a empty visited list.
* The struct ff_visited_list_hdr is used to manage a linked list of already
* visited lists.
*/
typedef struct ff_visited_list_hdr
{
struct ff_visited_list_hdr *ffvl_next;
/* the filename the attached visited list is for */
char_u *ffvl_filename;
ff_visited_T *ffvl_visited_list;
} ff_visited_list_hdr_T;
/*
* '**' can be expanded to several directory levels.
* Set the default maximum depth.
*/
#define FF_MAX_STAR_STAR_EXPAND ((char_u)30)
/*
* The search context:
* ffsc_stack_ptr: the stack for the dirs to search
* ffsc_visited_list: the currently active visited list
* ffsc_dir_visited_list: the currently active visited list for search dirs
* ffsc_visited_lists_list: the list of all visited lists
* ffsc_dir_visited_lists_list: the list of all visited lists for search dirs
* ffsc_file_to_search: the file to search for
* ffsc_start_dir: the starting directory, if search path was relative
* ffsc_fix_path: the fix part of the given path (without wildcards)
* Needed for upward search.
* ffsc_wc_path: the part of the given path containing wildcards
* ffsc_level: how many levels of dirs to search downwards
* ffsc_stopdirs_v: array of stop directories for upward search
* ffsc_find_what: FINDFILE_BOTH, FINDFILE_DIR or FINDFILE_FILE
* ffsc_tagfile: searching for tags file, don't use 'suffixesadd'
*/
typedef struct ff_search_ctx_T
{
ff_stack_T *ffsc_stack_ptr;
ff_visited_list_hdr_T *ffsc_visited_list;
ff_visited_list_hdr_T *ffsc_dir_visited_list;
ff_visited_list_hdr_T *ffsc_visited_lists_list;
ff_visited_list_hdr_T *ffsc_dir_visited_lists_list;
char_u *ffsc_file_to_search;
char_u *ffsc_start_dir;
char_u *ffsc_fix_path;
#ifdef FEAT_PATH_EXTRA
char_u *ffsc_wc_path;
int ffsc_level;
char_u **ffsc_stopdirs_v;
#endif
int ffsc_find_what;
int ffsc_tagfile;
} ff_search_ctx_T;
/* locally needed functions */
#ifdef FEAT_PATH_EXTRA
static int ff_check_visited __ARGS((ff_visited_T **, char_u *, char_u *));
#else
static int ff_check_visited __ARGS((ff_visited_T **, char_u *));
#endif
static void vim_findfile_free_visited_list __ARGS((ff_visited_list_hdr_T **list_headp));
static void ff_free_visited_list __ARGS((ff_visited_T *vl));
static ff_visited_list_hdr_T* ff_get_visited_list __ARGS((char_u *, ff_visited_list_hdr_T **list_headp));
#ifdef FEAT_PATH_EXTRA
static int ff_wc_equal __ARGS((char_u *s1, char_u *s2));
#endif
static void ff_push __ARGS((ff_search_ctx_T *search_ctx, ff_stack_T *stack_ptr));
static ff_stack_T *ff_pop __ARGS((ff_search_ctx_T *search_ctx));
static void ff_clear __ARGS((ff_search_ctx_T *search_ctx));
static void ff_free_stack_element __ARGS((ff_stack_T *stack_ptr));
#ifdef FEAT_PATH_EXTRA
static ff_stack_T *ff_create_stack_element __ARGS((char_u *, char_u *, int, int));
#else
static ff_stack_T *ff_create_stack_element __ARGS((char_u *, int, int));
#endif
#ifdef FEAT_PATH_EXTRA
static int ff_path_in_stoplist __ARGS((char_u *, int, char_u **));
#endif
#if 0
/*
* if someone likes findfirst/findnext, here are the functions
* NOT TESTED!!
*/
static void *ff_fn_search_context = NULL;
char_u *
vim_findfirst(path, filename, level)
char_u *path;
char_u *filename;
int level;
{
ff_fn_search_context =
vim_findfile_init(path, filename, NULL, level, TRUE, FALSE,
ff_fn_search_context, rel_fname);
if (NULL == ff_fn_search_context)
return NULL;
else
return vim_findnext()
}
char_u *
vim_findnext()
{
char_u *ret = vim_findfile(ff_fn_search_context);
if (NULL == ret)
{
vim_findfile_cleanup(ff_fn_search_context);
ff_fn_search_context = NULL;
}
return ret;
}
#endif
/*
* Initialization routine for vim_findfile().
*
* Returns the newly allocated search context or NULL if an error occurred.
*
* Don't forget to clean up by calling vim_findfile_cleanup() if you are done
* with the search context.
*
* Find the file 'filename' in the directory 'path'.
* The parameter 'path' may contain wildcards. If so only search 'level'
* directories deep. The parameter 'level' is the absolute maximum and is
* not related to restricts given to the '**' wildcard. If 'level' is 100
* and you use '**200' vim_findfile() will stop after 100 levels.
*
* 'filename' cannot contain wildcards! It is used as-is, no backslashes to
* escape special characters.
*
* If 'stopdirs' is not NULL and nothing is found downward, the search is
* restarted on the next higher directory level. This is repeated until the
* start-directory of a search is contained in 'stopdirs'. 'stopdirs' has the
* format ";*<dirname>*\(;<dirname>\)*;\=$".
*
* If the 'path' is relative, the starting dir for the search is either VIM's
* current dir or if the path starts with "./" the current files dir.
* If the 'path' is absolute, the starting dir is that part of the path before
* the first wildcard.
*
* Upward search is only done on the starting dir.
*
* If 'free_visited' is TRUE the list of already visited files/directories is
* cleared. Set this to FALSE if you just want to search from another
* directory, but want to be sure that no directory from a previous search is
* searched again. This is useful if you search for a file at different places.
* The list of visited files/dirs can also be cleared with the function
* vim_findfile_free_visited().
*
* Set the parameter 'find_what' to FINDFILE_DIR if you want to search for
* directories only, FINDFILE_FILE for files only, FINDFILE_BOTH for both.
*
* A search context returned by a previous call to vim_findfile_init() can be
* passed in the parameter "search_ctx_arg". This context is reused and
* reinitialized with the new parameters. The list of already visited
* directories from this context is only deleted if the parameter
* "free_visited" is true. Be aware that the passed "search_ctx_arg" is freed
* if the reinitialization fails.
*
* If you don't have a search context from a previous call "search_ctx_arg"
* must be NULL.
*
* This function silently ignores a few errors, vim_findfile() will have
* limited functionality then.
*/
void *
vim_findfile_init(path, filename, stopdirs, level, free_visited, find_what,
search_ctx_arg, tagfile, rel_fname)
char_u *path;
char_u *filename;
char_u *stopdirs UNUSED;
int level;
int free_visited;
int find_what;
void *search_ctx_arg;
int tagfile; /* expanding names of tags files */
char_u *rel_fname; /* file name to use for "." */
{
#ifdef FEAT_PATH_EXTRA
char_u *wc_part;
#endif
ff_stack_T *sptr;
ff_search_ctx_T *search_ctx;
/* If a search context is given by the caller, reuse it, else allocate a
* new one.
*/
if (search_ctx_arg != NULL)
search_ctx = search_ctx_arg;
else
{
search_ctx = (ff_search_ctx_T*)alloc((unsigned)sizeof(ff_search_ctx_T));
if (search_ctx == NULL)
goto error_return;
vim_memset(search_ctx, 0, sizeof(ff_search_ctx_T));
}
search_ctx->ffsc_find_what = find_what;
search_ctx->ffsc_tagfile = tagfile;
/* clear the search context, but NOT the visited lists */
ff_clear(search_ctx);
/* clear visited list if wanted */
if (free_visited == TRUE)
vim_findfile_free_visited(search_ctx);
else
{
/* Reuse old visited lists. Get the visited list for the given
* filename. If no list for the current filename exists, creates a new
* one. */
search_ctx->ffsc_visited_list = ff_get_visited_list(filename,
&search_ctx->ffsc_visited_lists_list);
if (search_ctx->ffsc_visited_list == NULL)
goto error_return;
search_ctx->ffsc_dir_visited_list = ff_get_visited_list(filename,
&search_ctx->ffsc_dir_visited_lists_list);
if (search_ctx->ffsc_dir_visited_list == NULL)
goto error_return;
}
if (ff_expand_buffer == NULL)
{
ff_expand_buffer = (char_u*)alloc(MAXPATHL);
if (ff_expand_buffer == NULL)
goto error_return;
}
/* Store information on starting dir now if path is relative.
* If path is absolute, we do that later. */
if (path[0] == '.'
&& (vim_ispathsep(path[1]) || path[1] == NUL)
&& (!tagfile || vim_strchr(p_cpo, CPO_DOTTAG) == NULL)
&& rel_fname != NULL)
{
int len = (int)(gettail(rel_fname) - rel_fname);
if (!vim_isAbsName(rel_fname) && len + 1 < MAXPATHL)
{
/* Make the start dir an absolute path name. */
vim_strncpy(ff_expand_buffer, rel_fname, len);
search_ctx->ffsc_start_dir = FullName_save(ff_expand_buffer, FALSE);
}
else
search_ctx->ffsc_start_dir = vim_strnsave(rel_fname, len);
if (search_ctx->ffsc_start_dir == NULL)
goto error_return;
if (*++path != NUL)
++path;
}
else if (*path == NUL || !vim_isAbsName(path))
{
#ifdef BACKSLASH_IN_FILENAME
/* "c:dir" needs "c:" to be expanded, otherwise use current dir */
if (*path != NUL && path[1] == ':')
{
char_u drive[3];
drive[0] = path[0];
drive[1] = ':';
drive[2] = NUL;
if (vim_FullName(drive, ff_expand_buffer, MAXPATHL, TRUE) == FAIL)
goto error_return;
path += 2;
}
else
#endif
if (mch_dirname(ff_expand_buffer, MAXPATHL) == FAIL)
goto error_return;
search_ctx->ffsc_start_dir = vim_strsave(ff_expand_buffer);
if (search_ctx->ffsc_start_dir == NULL)
goto error_return;
#ifdef BACKSLASH_IN_FILENAME
/* A path that starts with "/dir" is relative to the drive, not to the
* directory (but not for "//machine/dir"). Only use the drive name. */
if ((*path == '/' || *path == '\\')
&& path[1] != path[0]
&& search_ctx->ffsc_start_dir[1] == ':')
search_ctx->ffsc_start_dir[2] = NUL;
#endif
}
#ifdef FEAT_PATH_EXTRA
/*
* If stopdirs are given, split them into an array of pointers.
* If this fails (mem allocation), there is no upward search at all or a
* stop directory is not recognized -> continue silently.
* If stopdirs just contains a ";" or is empty,
* search_ctx->ffsc_stopdirs_v will only contain a NULL pointer. This
* is handled as unlimited upward search. See function
* ff_path_in_stoplist() for details.
*/
if (stopdirs != NULL)
{
char_u *walker = stopdirs;
int dircount;
while (*walker == ';')
walker++;
dircount = 1;
search_ctx->ffsc_stopdirs_v =
(char_u **)alloc((unsigned)sizeof(char_u *));
if (search_ctx->ffsc_stopdirs_v != NULL)
{
do
{
char_u *helper;
void *ptr;
helper = walker;
ptr = vim_realloc(search_ctx->ffsc_stopdirs_v,
(dircount + 1) * sizeof(char_u *));
if (ptr)
search_ctx->ffsc_stopdirs_v = ptr;
else
/* ignore, keep what we have and continue */
break;
walker = vim_strchr(walker, ';');
if (walker)
{
search_ctx->ffsc_stopdirs_v[dircount-1] =
vim_strnsave(helper, (int)(walker - helper));
walker++;
}
else
/* this might be "", which means ascent till top
* of directory tree.
*/
search_ctx->ffsc_stopdirs_v[dircount-1] =
vim_strsave(helper);
dircount++;
} while (walker != NULL);
search_ctx->ffsc_stopdirs_v[dircount-1] = NULL;
}
}
#endif
#ifdef FEAT_PATH_EXTRA
search_ctx->ffsc_level = level;
/* split into:
* -fix path
* -wildcard_stuff (might be NULL)
*/
wc_part = vim_strchr(path, '*');
if (wc_part != NULL)
{
int llevel;
int len;
char *errpt;
/* save the fix part of the path */
search_ctx->ffsc_fix_path = vim_strnsave(path, (int)(wc_part - path));
/*
* copy wc_path and add restricts to the '**' wildcard.
* The octet after a '**' is used as a (binary) counter.
* So '**3' is transposed to '**^C' ('^C' is ASCII value 3)
* or '**76' is transposed to '**N'( 'N' is ASCII value 76).
* For EBCDIC you get different character values.
* If no restrict is given after '**' the default is used.
* Due to this technique the path looks awful if you print it as a
* string.
*/
len = 0;
while (*wc_part != NUL)
{
if (STRNCMP(wc_part, "**", 2) == 0)
{
ff_expand_buffer[len++] = *wc_part++;
ff_expand_buffer[len++] = *wc_part++;
llevel = strtol((char *)wc_part, &errpt, 10);
if ((char_u *)errpt != wc_part && llevel > 0 && llevel < 255)
ff_expand_buffer[len++] = llevel;
else if ((char_u *)errpt != wc_part && llevel == 0)
/* restrict is 0 -> remove already added '**' */
len -= 2;
else
ff_expand_buffer[len++] = FF_MAX_STAR_STAR_EXPAND;
wc_part = (char_u *)errpt;
if (*wc_part != NUL && !vim_ispathsep(*wc_part))
{
EMSG2(_("E343: Invalid path: '**[number]' must be at the end of the path or be followed by '%s'."), PATHSEPSTR);
goto error_return;
}
}
else
ff_expand_buffer[len++] = *wc_part++;
}
ff_expand_buffer[len] = NUL;
search_ctx->ffsc_wc_path = vim_strsave(ff_expand_buffer);
if (search_ctx->ffsc_wc_path == NULL)
goto error_return;
}
else
#endif
search_ctx->ffsc_fix_path = vim_strsave(path);
if (search_ctx->ffsc_start_dir == NULL)
{
/* store the fix part as startdir.
* This is needed if the parameter path is fully qualified.
*/
search_ctx->ffsc_start_dir = vim_strsave(search_ctx->ffsc_fix_path);
if (search_ctx->ffsc_start_dir == NULL)
goto error_return;
search_ctx->ffsc_fix_path[0] = NUL;
}
/* create an absolute path */
STRCPY(ff_expand_buffer, search_ctx->ffsc_start_dir);
add_pathsep(ff_expand_buffer);
STRCAT(ff_expand_buffer, search_ctx->ffsc_fix_path);
add_pathsep(ff_expand_buffer);
sptr = ff_create_stack_element(ff_expand_buffer,
#ifdef FEAT_PATH_EXTRA
search_ctx->ffsc_wc_path,
#endif
level, 0);
if (sptr == NULL)
goto error_return;
ff_push(search_ctx, sptr);
search_ctx->ffsc_file_to_search = vim_strsave(filename);
if (search_ctx->ffsc_file_to_search == NULL)
goto error_return;
return search_ctx;
error_return:
/*
* We clear the search context now!
* Even when the caller gave us a (perhaps valid) context we free it here,
* as we might have already destroyed it.
*/
vim_findfile_cleanup(search_ctx);
return NULL;
}
#if defined(FEAT_PATH_EXTRA) || defined(PROTO)
/*
* Get the stopdir string. Check that ';' is not escaped.
*/
char_u *
vim_findfile_stopdir(buf)
char_u *buf;
{
char_u *r_ptr = buf;
while (*r_ptr != NUL && *r_ptr != ';')
{
if (r_ptr[0] == '\\' && r_ptr[1] == ';')
{
/* overwrite the escape char,
* use STRLEN(r_ptr) to move the trailing '\0'
*/
STRMOVE(r_ptr, r_ptr + 1);
r_ptr++;
}
r_ptr++;
}
if (*r_ptr == ';')
{
*r_ptr = 0;
r_ptr++;
}
else if (*r_ptr == NUL)
r_ptr = NULL;
return r_ptr;
}
#endif
/*
* Clean up the given search context. Can handle a NULL pointer.
*/
void
vim_findfile_cleanup(ctx)
void *ctx;
{
if (ctx == NULL)
return;
vim_findfile_free_visited(ctx);
ff_clear(ctx);
vim_free(ctx);
}
/*
* Find a file in a search context.
* The search context was created with vim_findfile_init() above.
* Return a pointer to an allocated file name or NULL if nothing found.
* To get all matching files call this function until you get NULL.
*
* If the passed search_context is NULL, NULL is returned.
*
* The search algorithm is depth first. To change this replace the
* stack with a list (don't forget to leave partly searched directories on the
* top of the list).
*/
char_u *
vim_findfile(search_ctx_arg)
void *search_ctx_arg;
{
char_u *file_path;
#ifdef FEAT_PATH_EXTRA
char_u *rest_of_wildcards;
char_u *path_end = NULL;
#endif
ff_stack_T *stackp;
#if defined(FEAT_SEARCHPATH) || defined(FEAT_PATH_EXTRA)
int len;
#endif
int i;
char_u *p;
#ifdef FEAT_SEARCHPATH
char_u *suf;
#endif
ff_search_ctx_T *search_ctx;
if (search_ctx_arg == NULL)
return NULL;
search_ctx = (ff_search_ctx_T *)search_ctx_arg;
/*
* filepath is used as buffer for various actions and as the storage to
* return a found filename.
*/
if ((file_path = alloc((int)MAXPATHL)) == NULL)
return NULL;
#ifdef FEAT_PATH_EXTRA
/* store the end of the start dir -- needed for upward search */
if (search_ctx->ffsc_start_dir != NULL)
path_end = &search_ctx->ffsc_start_dir[
STRLEN(search_ctx->ffsc_start_dir)];
#endif
#ifdef FEAT_PATH_EXTRA
/* upward search loop */
for (;;)
{
#endif
/* downward search loop */
for (;;)
{
/* check if user user wants to stop the search*/
ui_breakcheck();
if (got_int)
break;
/* get directory to work on from stack */
stackp = ff_pop(search_ctx);
if (stackp == NULL)
break;
/*
* TODO: decide if we leave this test in
*
* GOOD: don't search a directory(-tree) twice.
* BAD: - check linked list for every new directory entered.
* - check for double files also done below
*
* Here we check if we already searched this directory.
* We already searched a directory if:
* 1) The directory is the same.
* 2) We would use the same wildcard string.
*
* Good if you have links on same directory via several ways
* or you have selfreferences in directories (e.g. SuSE Linux 6.3:
* /etc/rc.d/init.d is linked to /etc/rc.d -> endless loop)
*
* This check is only needed for directories we work on for the
* first time (hence stackp->ff_filearray == NULL)
*/
if (stackp->ffs_filearray == NULL
&& ff_check_visited(&search_ctx->ffsc_dir_visited_list
->ffvl_visited_list,
stackp->ffs_fix_path
#ifdef FEAT_PATH_EXTRA
, stackp->ffs_wc_path
#endif
) == FAIL)
{
#ifdef FF_VERBOSE
if (p_verbose >= 5)
{
verbose_enter_scroll();
smsg((char_u *)"Already Searched: %s (%s)",
stackp->ffs_fix_path, stackp->ffs_wc_path);
/* don't overwrite this either */
msg_puts((char_u *)"\n");
verbose_leave_scroll();
}
#endif
ff_free_stack_element(stackp);
continue;
}
#ifdef FF_VERBOSE
else if (p_verbose >= 5)
{
verbose_enter_scroll();
smsg((char_u *)"Searching: %s (%s)",
stackp->ffs_fix_path, stackp->ffs_wc_path);
/* don't overwrite this either */
msg_puts((char_u *)"\n");
verbose_leave_scroll();
}
#endif
/* check depth */
if (stackp->ffs_level <= 0)
{
ff_free_stack_element(stackp);
continue;
}
file_path[0] = NUL;
/*
* If no filearray till now expand wildcards
* The function expand_wildcards() can handle an array of paths
* and all possible expands are returned in one array. We use this
* to handle the expansion of '**' into an empty string.
*/
if (stackp->ffs_filearray == NULL)
{
char_u *dirptrs[2];
/* we use filepath to build the path expand_wildcards() should
* expand.
*/
dirptrs[0] = file_path;
dirptrs[1] = NULL;
/* if we have a start dir copy it in */
if (!vim_isAbsName(stackp->ffs_fix_path)
&& search_ctx->ffsc_start_dir)
{
STRCPY(file_path, search_ctx->ffsc_start_dir);
add_pathsep(file_path);
}
/* append the fix part of the search path */
STRCAT(file_path, stackp->ffs_fix_path);
add_pathsep(file_path);
#ifdef FEAT_PATH_EXTRA
rest_of_wildcards = stackp->ffs_wc_path;
if (*rest_of_wildcards != NUL)
{
len = (int)STRLEN(file_path);
if (STRNCMP(rest_of_wildcards, "**", 2) == 0)
{
/* pointer to the restrict byte
* The restrict byte is not a character!
*/
p = rest_of_wildcards + 2;
if (*p > 0)
{
(*p)--;
file_path[len++] = '*';
}
if (*p == 0)
{
/* remove '**<numb> from wildcards */
STRMOVE(rest_of_wildcards, rest_of_wildcards + 3);
}
else
rest_of_wildcards += 3;
if (stackp->ffs_star_star_empty == 0)
{
/* if not done before, expand '**' to empty */
stackp->ffs_star_star_empty = 1;
dirptrs[1] = stackp->ffs_fix_path;
}
}
/*
* Here we copy until the next path separator or the end of
* the path. If we stop at a path separator, there is
* still something else left. This is handled below by
* pushing every directory returned from expand_wildcards()
* on the stack again for further search.
*/
while (*rest_of_wildcards
&& !vim_ispathsep(*rest_of_wildcards))
file_path[len++] = *rest_of_wildcards++;
file_path[len] = NUL;
if (vim_ispathsep(*rest_of_wildcards))
rest_of_wildcards++;
}
#endif
/*
* Expand wildcards like "*" and "$VAR".
* If the path is a URL don't try this.
*/
if (path_with_url(dirptrs[0]))
{
stackp->ffs_filearray = (char_u **)
alloc((unsigned)sizeof(char *));
if (stackp->ffs_filearray != NULL
&& (stackp->ffs_filearray[0]
= vim_strsave(dirptrs[0])) != NULL)
stackp->ffs_filearray_size = 1;
else
stackp->ffs_filearray_size = 0;
}
else
expand_wildcards((dirptrs[1] == NULL) ? 1 : 2, dirptrs,
&stackp->ffs_filearray_size,
&stackp->ffs_filearray,
EW_DIR|EW_ADDSLASH|EW_SILENT);
stackp->ffs_filearray_cur = 0;
stackp->ffs_stage = 0;
}
#ifdef FEAT_PATH_EXTRA
else
rest_of_wildcards = &stackp->ffs_wc_path[
STRLEN(stackp->ffs_wc_path)];
#endif
if (stackp->ffs_stage == 0)
{
/* this is the first time we work on this directory */
#ifdef FEAT_PATH_EXTRA
if (*rest_of_wildcards == NUL)
#endif
{
/*
* we don't have further wildcards to expand, so we have to
* check for the final file now
*/
for (i = stackp->ffs_filearray_cur;
i < stackp->ffs_filearray_size; ++i)
{
if (!path_with_url(stackp->ffs_filearray[i])
&& !mch_isdir(stackp->ffs_filearray[i]))
continue; /* not a directory */
/* prepare the filename to be checked for existence
* below */
STRCPY(file_path, stackp->ffs_filearray[i]);
add_pathsep(file_path);
STRCAT(file_path, search_ctx->ffsc_file_to_search);
/*
* Try without extra suffix and then with suffixes
* from 'suffixesadd'.
*/
#ifdef FEAT_SEARCHPATH
len = (int)STRLEN(file_path);
if (search_ctx->ffsc_tagfile)
suf = (char_u *)"";
else
suf = curbuf->b_p_sua;
for (;;)
#endif
{
/* if file exists and we didn't already find it */
if ((path_with_url(file_path)
|| (mch_getperm(file_path) >= 0
&& (search_ctx->ffsc_find_what
== FINDFILE_BOTH
|| ((search_ctx->ffsc_find_what
== FINDFILE_DIR)
== mch_isdir(file_path)))))
#ifndef FF_VERBOSE
&& (ff_check_visited(
&search_ctx->ffsc_visited_list->ffvl_visited_list,
file_path
#ifdef FEAT_PATH_EXTRA
, (char_u *)""
#endif
) == OK)
#endif
)
{
#ifdef FF_VERBOSE
if (ff_check_visited(
&search_ctx->ffsc_visited_list->ffvl_visited_list,
file_path
#ifdef FEAT_PATH_EXTRA
, (char_u *)""
#endif
) == FAIL)
{
if (p_verbose >= 5)
{
verbose_enter_scroll();
smsg((char_u *)"Already: %s",
file_path);
/* don't overwrite this either */
msg_puts((char_u *)"\n");
verbose_leave_scroll();
}
continue;
}
#endif
/* push dir to examine rest of subdirs later */
stackp->ffs_filearray_cur = i + 1;
ff_push(search_ctx, stackp);
if (!path_with_url(file_path))
simplify_filename(file_path);
if (mch_dirname(ff_expand_buffer, MAXPATHL)
== OK)
{
p = shorten_fname(file_path,
ff_expand_buffer);
if (p != NULL)
STRMOVE(file_path, p);
}
#ifdef FF_VERBOSE
if (p_verbose >= 5)
{
verbose_enter_scroll();
smsg((char_u *)"HIT: %s", file_path);
/* don't overwrite this either */
msg_puts((char_u *)"\n");
verbose_leave_scroll();
}
#endif
return file_path;
}
#ifdef FEAT_SEARCHPATH
/* Not found or found already, try next suffix. */
if (*suf == NUL)
break;
copy_option_part(&suf, file_path + len,
MAXPATHL - len, ",");
#endif
}
}
}
#ifdef FEAT_PATH_EXTRA
else
{
/*
* still wildcards left, push the directories for further
* search
*/
for (i = stackp->ffs_filearray_cur;
i < stackp->ffs_filearray_size; ++i)
{
if (!mch_isdir(stackp->ffs_filearray[i]))
continue; /* not a directory */
ff_push(search_ctx,
ff_create_stack_element(
stackp->ffs_filearray[i],
rest_of_wildcards,
stackp->ffs_level - 1, 0));
}
}
#endif
stackp->ffs_filearray_cur = 0;
stackp->ffs_stage = 1;
}
#ifdef FEAT_PATH_EXTRA
/*
* if wildcards contains '**' we have to descent till we reach the
* leaves of the directory tree.
*/
if (STRNCMP(stackp->ffs_wc_path, "**", 2) == 0)
{
for (i = stackp->ffs_filearray_cur;
i < stackp->ffs_filearray_size; ++i)
{
if (fnamecmp(stackp->ffs_filearray[i],
stackp->ffs_fix_path) == 0)
continue; /* don't repush same directory */
if (!mch_isdir(stackp->ffs_filearray[i]))
continue; /* not a directory */
ff_push(search_ctx,
ff_create_stack_element(stackp->ffs_filearray[i],
stackp->ffs_wc_path, stackp->ffs_level - 1, 1));
}
}
#endif
/* we are done with the current directory */
ff_free_stack_element(stackp);
}
#ifdef FEAT_PATH_EXTRA
/* If we reached this, we didn't find anything downwards.
* Let's check if we should do an upward search.
*/
if (search_ctx->ffsc_start_dir
&& search_ctx->ffsc_stopdirs_v != NULL && !got_int)
{
ff_stack_T *sptr;
/* is the last starting directory in the stop list? */
if (ff_path_in_stoplist(search_ctx->ffsc_start_dir,
(int)(path_end - search_ctx->ffsc_start_dir),
search_ctx->ffsc_stopdirs_v) == TRUE)
break;
/* cut of last dir */
while (path_end > search_ctx->ffsc_start_dir
&& vim_ispathsep(*path_end))
path_end--;
while (path_end > search_ctx->ffsc_start_dir
&& !vim_ispathsep(path_end[-1]))
path_end--;
*path_end = 0;
path_end--;
if (*search_ctx->ffsc_start_dir == 0)
break;
STRCPY(file_path, search_ctx->ffsc_start_dir);
add_pathsep(file_path);
STRCAT(file_path, search_ctx->ffsc_fix_path);
/* create a new stack entry */
sptr = ff_create_stack_element(file_path,
search_ctx->ffsc_wc_path, search_ctx->ffsc_level, 0);
if (sptr == NULL)
break;
ff_push(search_ctx, sptr);
}
else
break;
}
#endif
vim_free(file_path);
return NULL;
}
/*
* Free the list of lists of visited files and directories
* Can handle it if the passed search_context is NULL;
*/
void
vim_findfile_free_visited(search_ctx_arg)
void *search_ctx_arg;
{
ff_search_ctx_T *search_ctx;
if (search_ctx_arg == NULL)
return;
search_ctx = (ff_search_ctx_T *)search_ctx_arg;
vim_findfile_free_visited_list(&search_ctx->ffsc_visited_lists_list);
vim_findfile_free_visited_list(&search_ctx->ffsc_dir_visited_lists_list);
}
static void
vim_findfile_free_visited_list(list_headp)
ff_visited_list_hdr_T **list_headp;
{
ff_visited_list_hdr_T *vp;
while (*list_headp != NULL)
{
vp = (*list_headp)->ffvl_next;
ff_free_visited_list((*list_headp)->ffvl_visited_list);
vim_free((*list_headp)->ffvl_filename);
vim_free(*list_headp);
*list_headp = vp;
}
*list_headp = NULL;
}
static void
ff_free_visited_list(vl)
ff_visited_T *vl;
{
ff_visited_T *vp;
while (vl != NULL)
{
vp = vl->ffv_next;
#ifdef FEAT_PATH_EXTRA
vim_free(vl->ffv_wc_path);
#endif
vim_free(vl);
vl = vp;
}
vl = NULL;
}
/*
* Returns the already visited list for the given filename. If none is found it
* allocates a new one.
*/
static ff_visited_list_hdr_T*
ff_get_visited_list(filename, list_headp)
char_u *filename;
ff_visited_list_hdr_T **list_headp;
{
ff_visited_list_hdr_T *retptr = NULL;
/* check if a visited list for the given filename exists */
if (*list_headp != NULL)
{
retptr = *list_headp;
while (retptr != NULL)
{
if (fnamecmp(filename, retptr->ffvl_filename) == 0)
{
#ifdef FF_VERBOSE
if (p_verbose >= 5)
{
verbose_enter_scroll();
smsg((char_u *)"ff_get_visited_list: FOUND list for %s",
filename);
/* don't overwrite this either */
msg_puts((char_u *)"\n");
verbose_leave_scroll();
}
#endif
return retptr;
}
retptr = retptr->ffvl_next;
}
}
#ifdef FF_VERBOSE
if (p_verbose >= 5)
{
verbose_enter_scroll();
smsg((char_u *)"ff_get_visited_list: new list for %s", filename);
/* don't overwrite this either */
msg_puts((char_u *)"\n");
verbose_leave_scroll();
}
#endif
/*
* if we reach this we didn't find a list and we have to allocate new list
*/
retptr = (ff_visited_list_hdr_T*)alloc((unsigned)sizeof(*retptr));
if (retptr == NULL)
return NULL;
retptr->ffvl_visited_list = NULL;
retptr->ffvl_filename = vim_strsave(filename);
if (retptr->ffvl_filename == NULL)
{
vim_free(retptr);
return NULL;
}
retptr->ffvl_next = *list_headp;
*list_headp = retptr;
return retptr;
}
#ifdef FEAT_PATH_EXTRA
/*
* check if two wildcard paths are equal. Returns TRUE or FALSE.
* They are equal if:
* - both paths are NULL
* - they have the same length
* - char by char comparison is OK
* - the only differences are in the counters behind a '**', so
* '**\20' is equal to '**\24'
*/
static int
ff_wc_equal(s1, s2)
char_u *s1;
char_u *s2;
{
int i;
if (s1 == s2)
return TRUE;
if (s1 == NULL || s2 == NULL)
return FALSE;
if (STRLEN(s1) != STRLEN(s2))
return FAIL;
for (i = 0; s1[i] != NUL && s2[i] != NUL; i++)
{
if (s1[i] != s2[i]
#ifdef CASE_INSENSITIVE_FILENAME
&& TOUPPER_LOC(s1[i]) != TOUPPER_LOC(s2[i])
#endif
)
{
if (i >= 2)
if (s1[i-1] == '*' && s1[i-2] == '*')
continue;
else
return FAIL;
else
return FAIL;
}
}
return TRUE;
}
#endif
/*
* maintains the list of already visited files and dirs
* returns FAIL if the given file/dir is already in the list
* returns OK if it is newly added
*
* TODO: What to do on memory allocation problems?
* -> return TRUE - Better the file is found several times instead of
* never.
*/
static int
ff_check_visited(visited_list, fname
#ifdef FEAT_PATH_EXTRA
, wc_path
#endif
)
ff_visited_T **visited_list;
char_u *fname;
#ifdef FEAT_PATH_EXTRA
char_u *wc_path;
#endif
{
ff_visited_T *vp;
#ifdef UNIX
struct stat st;
int url = FALSE;
#endif
/* For an URL we only compare the name, otherwise we compare the
* device/inode (unix) or the full path name (not Unix). */
if (path_with_url(fname))
{
vim_strncpy(ff_expand_buffer, fname, MAXPATHL - 1);
#ifdef UNIX
url = TRUE;
#endif
}
else
{
ff_expand_buffer[0] = NUL;
#ifdef UNIX
if (mch_stat((char *)fname, &st) < 0)
#else
if (vim_FullName(fname, ff_expand_buffer, MAXPATHL, TRUE) == FAIL)
#endif
return FAIL;
}
/* check against list of already visited files */
for (vp = *visited_list; vp != NULL; vp = vp->ffv_next)
{
if (
#ifdef UNIX
!url ? (vp->ffv_dev_valid && vp->ffv_dev == st.st_dev
&& vp->ffv_ino == st.st_ino)
:
#endif
fnamecmp(vp->ffv_fname, ff_expand_buffer) == 0
)
{
#ifdef FEAT_PATH_EXTRA
/* are the wildcard parts equal */
if (ff_wc_equal(vp->ffv_wc_path, wc_path) == TRUE)
#endif
/* already visited */
return FAIL;
}
}
/*
* New file/dir. Add it to the list of visited files/dirs.
*/
vp = (ff_visited_T *)alloc((unsigned)(sizeof(ff_visited_T)
+ STRLEN(ff_expand_buffer)));
if (vp != NULL)
{
#ifdef UNIX
if (!url)
{
vp->ffv_dev_valid = TRUE;
vp->ffv_ino = st.st_ino;
vp->ffv_dev = st.st_dev;
vp->ffv_fname[0] = NUL;
}
else
{
vp->ffv_dev_valid = FALSE;
#endif
STRCPY(vp->ffv_fname, ff_expand_buffer);
#ifdef UNIX
}
#endif
#ifdef FEAT_PATH_EXTRA
if (wc_path != NULL)
vp->ffv_wc_path = vim_strsave(wc_path);
else
vp->ffv_wc_path = NULL;
#endif
vp->ffv_next = *visited_list;
*visited_list = vp;
}
return OK;
}
/*
* create stack element from given path pieces
*/
static ff_stack_T *
ff_create_stack_element(fix_part,
#ifdef FEAT_PATH_EXTRA
wc_part,
#endif
level, star_star_empty)
char_u *fix_part;
#ifdef FEAT_PATH_EXTRA
char_u *wc_part;
#endif
int level;
int star_star_empty;
{
ff_stack_T *new;
new = (ff_stack_T *)alloc((unsigned)sizeof(ff_stack_T));
if (new == NULL)
return NULL;
new->ffs_prev = NULL;
new->ffs_filearray = NULL;
new->ffs_filearray_size = 0;
new->ffs_filearray_cur = 0;
new->ffs_stage = 0;
new->ffs_level = level;
new->ffs_star_star_empty = star_star_empty;;
/* the following saves NULL pointer checks in vim_findfile */
if (fix_part == NULL)
fix_part = (char_u *)"";
new->ffs_fix_path = vim_strsave(fix_part);
#ifdef FEAT_PATH_EXTRA
if (wc_part == NULL)
wc_part = (char_u *)"";
new->ffs_wc_path = vim_strsave(wc_part);
#endif
if (new->ffs_fix_path == NULL
#ifdef FEAT_PATH_EXTRA
|| new->ffs_wc_path == NULL
#endif
)
{
ff_free_stack_element(new);
new = NULL;
}
return new;
}
/*
* Push a dir on the directory stack.
*/
static void
ff_push(search_ctx, stack_ptr)
ff_search_ctx_T *search_ctx;
ff_stack_T *stack_ptr;
{
/* check for NULL pointer, not to return an error to the user, but
* to prevent a crash */
if (stack_ptr != NULL)
{
stack_ptr->ffs_prev = search_ctx->ffsc_stack_ptr;
search_ctx->ffsc_stack_ptr = stack_ptr;
}
}
/*
* Pop a dir from the directory stack.
* Returns NULL if stack is empty.
*/
static ff_stack_T *
ff_pop(search_ctx)
ff_search_ctx_T *search_ctx;
{
ff_stack_T *sptr;
sptr = search_ctx->ffsc_stack_ptr;
if (search_ctx->ffsc_stack_ptr != NULL)
search_ctx->ffsc_stack_ptr = search_ctx->ffsc_stack_ptr->ffs_prev;
return sptr;
}
/*
* free the given stack element
*/
static void
ff_free_stack_element(stack_ptr)
ff_stack_T *stack_ptr;
{
/* vim_free handles possible NULL pointers */
vim_free(stack_ptr->ffs_fix_path);
#ifdef FEAT_PATH_EXTRA
vim_free(stack_ptr->ffs_wc_path);
#endif
if (stack_ptr->ffs_filearray != NULL)
FreeWild(stack_ptr->ffs_filearray_size, stack_ptr->ffs_filearray);
vim_free(stack_ptr);
}
/*
* Clear the search context, but NOT the visited list.
*/
static void
ff_clear(search_ctx)
ff_search_ctx_T *search_ctx;
{
ff_stack_T *sptr;
/* clear up stack */
while ((sptr = ff_pop(search_ctx)) != NULL)
ff_free_stack_element(sptr);
vim_free(search_ctx->ffsc_file_to_search);
vim_free(search_ctx->ffsc_start_dir);
vim_free(search_ctx->ffsc_fix_path);
#ifdef FEAT_PATH_EXTRA
vim_free(search_ctx->ffsc_wc_path);
#endif
#ifdef FEAT_PATH_EXTRA
if (search_ctx->ffsc_stopdirs_v != NULL)
{
int i = 0;
while (search_ctx->ffsc_stopdirs_v[i] != NULL)
{
vim_free(search_ctx->ffsc_stopdirs_v[i]);
i++;
}
vim_free(search_ctx->ffsc_stopdirs_v);
}
search_ctx->ffsc_stopdirs_v = NULL;
#endif
/* reset everything */
search_ctx->ffsc_file_to_search = NULL;
search_ctx->ffsc_start_dir = NULL;
search_ctx->ffsc_fix_path = NULL;
#ifdef FEAT_PATH_EXTRA
search_ctx->ffsc_wc_path = NULL;
search_ctx->ffsc_level = 0;
#endif
}
#ifdef FEAT_PATH_EXTRA
/*
* check if the given path is in the stopdirs
* returns TRUE if yes else FALSE
*/
static int
ff_path_in_stoplist(path, path_len, stopdirs_v)
char_u *path;
int path_len;
char_u **stopdirs_v;
{
int i = 0;
/* eat up trailing path separators, except the first */
while (path_len > 1 && vim_ispathsep(path[path_len - 1]))
path_len--;
/* if no path consider it as match */
if (path_len == 0)
return TRUE;
for (i = 0; stopdirs_v[i] != NULL; i++)
{
if ((int)STRLEN(stopdirs_v[i]) > path_len)
{
/* match for parent directory. So '/home' also matches
* '/home/rks'. Check for PATHSEP in stopdirs_v[i], else
* '/home/r' would also match '/home/rks'
*/
if (fnamencmp(stopdirs_v[i], path, path_len) == 0
&& vim_ispathsep(stopdirs_v[i][path_len]))
return TRUE;
}
else
{
if (fnamecmp(stopdirs_v[i], path) == 0)
return TRUE;
}
}
return FALSE;
}
#endif
#if defined(FEAT_SEARCHPATH) || defined(PROTO)
/*
* Find the file name "ptr[len]" in the path. Also finds directory names.
*
* On the first call set the parameter 'first' to TRUE to initialize
* the search. For repeating calls to FALSE.
*
* Repeating calls will return other files called 'ptr[len]' from the path.
*
* Only on the first call 'ptr' and 'len' are used. For repeating calls they
* don't need valid values.
*
* If nothing found on the first call the option FNAME_MESS will issue the
* message:
* 'Can't find file "<file>" in path'
* On repeating calls:
* 'No more file "<file>" found in path'
*
* options:
* FNAME_MESS give error message when not found
*
* Uses NameBuff[]!
*
* Returns an allocated string for the file name. NULL for error.
*
*/
char_u *
find_file_in_path(ptr, len, options, first, rel_fname)
char_u *ptr; /* file name */
int len; /* length of file name */
int options;
int first; /* use count'th matching file name */
char_u *rel_fname; /* file name searching relative to */
{
return find_file_in_path_option(ptr, len, options, first,
*curbuf->b_p_path == NUL ? p_path : curbuf->b_p_path,
FINDFILE_BOTH, rel_fname, curbuf->b_p_sua);
}
static char_u *ff_file_to_find = NULL;
static void *fdip_search_ctx = NULL;
#if defined(EXITFREE)
static void
free_findfile()
{
vim_free(ff_file_to_find);
vim_findfile_cleanup(fdip_search_ctx);
}
#endif
/*
* Find the directory name "ptr[len]" in the path.
*
* options:
* FNAME_MESS give error message when not found
*
* Uses NameBuff[]!
*
* Returns an allocated string for the file name. NULL for error.
*/
char_u *
find_directory_in_path(ptr, len, options, rel_fname)
char_u *ptr; /* file name */
int len; /* length of file name */
int options;
char_u *rel_fname; /* file name searching relative to */
{
return find_file_in_path_option(ptr, len, options, TRUE, p_cdpath,
FINDFILE_DIR, rel_fname, (char_u *)"");
}
char_u *
find_file_in_path_option(ptr, len, options, first, path_option, find_what, rel_fname, suffixes)
char_u *ptr; /* file name */
int len; /* length of file name */
int options;
int first; /* use count'th matching file name */
char_u *path_option; /* p_path or p_cdpath */
int find_what; /* FINDFILE_FILE, _DIR or _BOTH */
char_u *rel_fname; /* file name we are looking relative to. */
char_u *suffixes; /* list of suffixes, 'suffixesadd' option */
{
static char_u *dir;
static int did_findfile_init = FALSE;
char_u save_char;
char_u *file_name = NULL;
char_u *buf = NULL;
int rel_to_curdir;
#ifdef AMIGA
struct Process *proc = (struct Process *)FindTask(0L);
APTR save_winptr = proc->pr_WindowPtr;
/* Avoid a requester here for a volume that doesn't exist. */
proc->pr_WindowPtr = (APTR)-1L;
#endif
if (first == TRUE)
{
/* copy file name into NameBuff, expanding environment variables */
save_char = ptr[len];
ptr[len] = NUL;
expand_env(ptr, NameBuff, MAXPATHL);
ptr[len] = save_char;
vim_free(ff_file_to_find);
ff_file_to_find = vim_strsave(NameBuff);
if (ff_file_to_find == NULL) /* out of memory */
{
file_name = NULL;
goto theend;
}
}
rel_to_curdir = (ff_file_to_find[0] == '.'
&& (ff_file_to_find[1] == NUL
|| vim_ispathsep(ff_file_to_find[1])
|| (ff_file_to_find[1] == '.'
&& (ff_file_to_find[2] == NUL
|| vim_ispathsep(ff_file_to_find[2])))));
if (vim_isAbsName(ff_file_to_find)
/* "..", "../path", "." and "./path": don't use the path_option */
|| rel_to_curdir
#if defined(MSWIN) || defined(MSDOS) || defined(OS2)
/* handle "\tmp" as absolute path */
|| vim_ispathsep(ff_file_to_find[0])
/* handle "c:name" as absolute path */
|| (ff_file_to_find[0] != NUL && ff_file_to_find[1] == ':')
#endif
#ifdef AMIGA
/* handle ":tmp" as absolute path */
|| ff_file_to_find[0] == ':'
#endif
)
{
/*
* Absolute path, no need to use "path_option".
* If this is not a first call, return NULL. We already returned a
* filename on the first call.
*/
if (first == TRUE)
{
int l;
int run;
if (path_with_url(ff_file_to_find))
{
file_name = vim_strsave(ff_file_to_find);
goto theend;
}
/* When FNAME_REL flag given first use the directory of the file.
* Otherwise or when this fails use the current directory. */
for (run = 1; run <= 2; ++run)
{
l = (int)STRLEN(ff_file_to_find);
if (run == 1
&& rel_to_curdir
&& (options & FNAME_REL)
&& rel_fname != NULL
&& STRLEN(rel_fname) + l < MAXPATHL)
{
STRCPY(NameBuff, rel_fname);
STRCPY(gettail(NameBuff), ff_file_to_find);
l = (int)STRLEN(NameBuff);
}
else
{
STRCPY(NameBuff, ff_file_to_find);
run = 2;
}
/* When the file doesn't exist, try adding parts of
* 'suffixesadd'. */
buf = suffixes;
for (;;)
{
if (
#ifdef DJGPP
/* "C:" by itself will fail for mch_getperm(),
* assume it's always valid. */
(find_what != FINDFILE_FILE && NameBuff[0] != NUL
&& NameBuff[1] == ':'
&& NameBuff[2] == NUL) ||
#endif
(mch_getperm(NameBuff) >= 0
&& (find_what == FINDFILE_BOTH
|| ((find_what == FINDFILE_DIR)
== mch_isdir(NameBuff)))))
{
file_name = vim_strsave(NameBuff);
goto theend;
}
if (*buf == NUL)
break;
copy_option_part(&buf, NameBuff + l, MAXPATHL - l, ",");
}
}
}
}
else
{
/*
* Loop over all paths in the 'path' or 'cdpath' option.
* When "first" is set, first setup to the start of the option.
* Otherwise continue to find the next match.
*/
if (first == TRUE)
{
/* vim_findfile_free_visited can handle a possible NULL pointer */
vim_findfile_free_visited(fdip_search_ctx);
dir = path_option;
did_findfile_init = FALSE;
}
for (;;)
{
if (did_findfile_init)
{
file_name = vim_findfile(fdip_search_ctx);
if (file_name != NULL)
break;
did_findfile_init = FALSE;
}
else
{
char_u *r_ptr;
if (dir == NULL || *dir == NUL)
{
/* We searched all paths of the option, now we can
* free the search context. */
vim_findfile_cleanup(fdip_search_ctx);
fdip_search_ctx = NULL;
break;
}
if ((buf = alloc((int)(MAXPATHL))) == NULL)
break;
/* copy next path */
buf[0] = 0;
copy_option_part(&dir, buf, MAXPATHL, " ,");
#ifdef FEAT_PATH_EXTRA
/* get the stopdir string */
r_ptr = vim_findfile_stopdir(buf);
#else
r_ptr = NULL;
#endif
fdip_search_ctx = vim_findfile_init(buf, ff_file_to_find,
r_ptr, 100, FALSE, find_what,
fdip_search_ctx, FALSE, rel_fname);
if (fdip_search_ctx != NULL)
did_findfile_init = TRUE;
vim_free(buf);
}
}
}
if (file_name == NULL && (options & FNAME_MESS))
{
if (first == TRUE)
{
if (find_what == FINDFILE_DIR)
EMSG2(_("E344: Can't find directory \"%s\" in cdpath"),
ff_file_to_find);
else
EMSG2(_("E345: Can't find file \"%s\" in path"),
ff_file_to_find);
}
else
{
if (find_what == FINDFILE_DIR)
EMSG2(_("E346: No more directory \"%s\" found in cdpath"),
ff_file_to_find);
else
EMSG2(_("E347: No more file \"%s\" found in path"),
ff_file_to_find);
}
}
theend:
#ifdef AMIGA
proc->pr_WindowPtr = save_winptr;
#endif
return file_name;
}
#endif /* FEAT_SEARCHPATH */
/*
* Change directory to "new_dir". If FEAT_SEARCHPATH is defined, search
* 'cdpath' for relative directory names, otherwise just mch_chdir().
*/
int
vim_chdir(new_dir)
char_u *new_dir;
{
#ifndef FEAT_SEARCHPATH
return mch_chdir((char *)new_dir);
#else
char_u *dir_name;
int r;
dir_name = find_directory_in_path(new_dir, (int)STRLEN(new_dir),
FNAME_MESS, curbuf->b_ffname);
if (dir_name == NULL)
return -1;
r = mch_chdir((char *)dir_name);
vim_free(dir_name);
return r;
#endif
}
/*
* Get user name from machine-specific function.
* Returns the user name in "buf[len]".
* Some systems are quite slow in obtaining the user name (Windows NT), thus
* cache the result.
* Returns OK or FAIL.
*/
int
get_user_name(buf, len)
char_u *buf;
int len;
{
if (username == NULL)
{
if (mch_get_user_name(buf, len) == FAIL)
return FAIL;
username = vim_strsave(buf);
}
else
vim_strncpy(buf, username, len - 1);
return OK;
}
#ifndef HAVE_QSORT
/*
* Our own qsort(), for systems that don't have it.
* It's simple and slow. From the K&R C book.
*/
void
qsort(base, elm_count, elm_size, cmp)
void *base;
size_t elm_count;
size_t elm_size;
int (*cmp) __ARGS((const void *, const void *));
{
char_u *buf;
char_u *p1;
char_u *p2;
int i, j;
int gap;
buf = alloc((unsigned)elm_size);
if (buf == NULL)
return;
for (gap = elm_count / 2; gap > 0; gap /= 2)
for (i = gap; i < elm_count; ++i)
for (j = i - gap; j >= 0; j -= gap)
{
/* Compare the elements. */
p1 = (char_u *)base + j * elm_size;
p2 = (char_u *)base + (j + gap) * elm_size;
if ((*cmp)((void *)p1, (void *)p2) <= 0)
break;
/* Exchange the elements. */
mch_memmove(buf, p1, elm_size);
mch_memmove(p1, p2, elm_size);
mch_memmove(p2, buf, elm_size);
}
vim_free(buf);
}
#endif
/*
* Sort an array of strings.
*/
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
sort_compare __ARGS((const void *s1, const void *s2));
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
sort_compare(s1, s2)
const void *s1;
const void *s2;
{
return STRCMP(*(char **)s1, *(char **)s2);
}
void
sort_strings(files, count)
char_u **files;
int count;
{
qsort((void *)files, (size_t)count, sizeof(char_u *), sort_compare);
}
#if !defined(NO_EXPANDPATH) || defined(PROTO)
/*
* Compare path "p[]" to "q[]".
* If "maxlen" >= 0 compare "p[maxlen]" to "q[maxlen]"
* Return value like strcmp(p, q), but consider path separators.
*/
int
pathcmp(p, q, maxlen)
const char *p, *q;
int maxlen;
{
int i;
const char *s = NULL;
for (i = 0; maxlen < 0 || i < maxlen; ++i)
{
/* End of "p": check if "q" also ends or just has a slash. */
if (p[i] == NUL)
{
if (q[i] == NUL) /* full match */
return 0;
s = q;
break;
}
/* End of "q": check if "p" just has a slash. */
if (q[i] == NUL)
{
s = p;
break;
}
if (
#ifdef CASE_INSENSITIVE_FILENAME
TOUPPER_LOC(p[i]) != TOUPPER_LOC(q[i])
#else
p[i] != q[i]
#endif
#ifdef BACKSLASH_IN_FILENAME
/* consider '/' and '\\' to be equal */
&& !((p[i] == '/' && q[i] == '\\')
|| (p[i] == '\\' && q[i] == '/'))
#endif
)
{
if (vim_ispathsep(p[i]))
return -1;
if (vim_ispathsep(q[i]))
return 1;
return ((char_u *)p)[i] - ((char_u *)q)[i]; /* no match */
}
}
if (s == NULL) /* "i" ran into "maxlen" */
return 0;
/* ignore a trailing slash, but not "//" or ":/" */
if (s[i + 1] == NUL
&& i > 0
&& !after_pathsep((char_u *)s, (char_u *)s + i)
#ifdef BACKSLASH_IN_FILENAME
&& (s[i] == '/' || s[i] == '\\')
#else
&& s[i] == '/'
#endif
)
return 0; /* match with trailing slash */
if (s == q)
return -1; /* no match */
return 1;
}
#endif
/*
* The putenv() implementation below comes from the "screen" program.
* Included with permission from Juergen Weigert.
* See pty.c for the copyright notice.
*/
/*
* putenv -- put value into environment
*
* Usage: i = putenv (string)
* int i;
* char *string;
*
* where string is of the form <name>=<value>.
* Putenv returns 0 normally, -1 on error (not enough core for malloc).
*
* Putenv may need to add a new name into the environment, or to
* associate a value longer than the current value with a particular
* name. So, to make life simpler, putenv() copies your entire
* environment into the heap (i.e. malloc()) from the stack
* (i.e. where it resides when your process is initiated) the first
* time you call it.
*
* (history removed, not very interesting. See the "screen" sources.)
*/
#if !defined(HAVE_SETENV) && !defined(HAVE_PUTENV)
#define EXTRASIZE 5 /* increment to add to env. size */
static int envsize = -1; /* current size of environment */
#ifndef MACOS_CLASSIC
extern
#endif
char **environ; /* the global which is your env. */
static int findenv __ARGS((char *name)); /* look for a name in the env. */
static int newenv __ARGS((void)); /* copy env. from stack to heap */
static int moreenv __ARGS((void)); /* incr. size of env. */
int
putenv(string)
const char *string;
{
int i;
char *p;
if (envsize < 0)
{ /* first time putenv called */
if (newenv() < 0) /* copy env. to heap */
return -1;
}
i = findenv((char *)string); /* look for name in environment */
if (i < 0)
{ /* name must be added */
for (i = 0; environ[i]; i++);
if (i >= (envsize - 1))
{ /* need new slot */
if (moreenv() < 0)
return -1;
}
p = (char *)alloc((unsigned)(strlen(string) + 1));
if (p == NULL) /* not enough core */
return -1;
environ[i + 1] = 0; /* new end of env. */
}
else
{ /* name already in env. */
p = vim_realloc(environ[i], strlen(string) + 1);
if (p == NULL)
return -1;
}
sprintf(p, "%s", string); /* copy into env. */
environ[i] = p;
return 0;
}
static int
findenv(name)
char *name;
{
char *namechar, *envchar;
int i, found;
found = 0;
for (i = 0; environ[i] && !found; i++)
{
envchar = environ[i];
namechar = name;
while (*namechar && *namechar != '=' && (*namechar == *envchar))
{
namechar++;
envchar++;
}
found = ((*namechar == '\0' || *namechar == '=') && *envchar == '=');
}
return found ? i - 1 : -1;
}
static int
newenv()
{
char **env, *elem;
int i, esize;
#ifdef MACOS
/* for Mac a new, empty environment is created */
i = 0;
#else
for (i = 0; environ[i]; i++)
;
#endif
esize = i + EXTRASIZE + 1;
env = (char **)alloc((unsigned)(esize * sizeof (elem)));
if (env == NULL)
return -1;
#ifndef MACOS
for (i = 0; environ[i]; i++)
{
elem = (char *)alloc((unsigned)(strlen(environ[i]) + 1));
if (elem == NULL)
return -1;
env[i] = elem;
strcpy(elem, environ[i]);
}
#endif
env[i] = 0;
environ = env;
envsize = esize;
return 0;
}
static int
moreenv()
{
int esize;
char **env;
esize = envsize + EXTRASIZE;
env = (char **)vim_realloc((char *)environ, esize * sizeof (*env));
if (env == 0)
return -1;
environ = env;
envsize = esize;
return 0;
}
# ifdef USE_VIMPTY_GETENV
char_u *
vimpty_getenv(string)
const char_u *string;
{
int i;
char_u *p;
if (envsize < 0)
return NULL;
i = findenv((char *)string);
if (i < 0)
return NULL;
p = vim_strchr((char_u *)environ[i], '=');
return (p + 1);
}
# endif
#endif /* !defined(HAVE_SETENV) && !defined(HAVE_PUTENV) */
#if defined(FEAT_EVAL) || defined(FEAT_SPELL) || defined(PROTO)
/*
* Return 0 for not writable, 1 for writable file, 2 for a dir which we have
* rights to write into.
*/
int
filewritable(fname)
char_u *fname;
{
int retval = 0;
#if defined(UNIX) || defined(VMS)
int perm = 0;
#endif
#if defined(UNIX) || defined(VMS)
perm = mch_getperm(fname);
#endif
#ifndef MACOS_CLASSIC /* TODO: get either mch_writable or mch_access */
if (
# ifdef WIN3264
mch_writable(fname) &&
# else
# if defined(UNIX) || defined(VMS)
(perm & 0222) &&
# endif
# endif
mch_access((char *)fname, W_OK) == 0
)
#endif
{
++retval;
if (mch_isdir(fname))
++retval;
}
return retval;
}
#endif
/*
* Print an error message with one or two "%s" and one or two string arguments.
* This is not in message.c to avoid a warning for prototypes.
*/
int
emsg3(s, a1, a2)
char_u *s, *a1, *a2;
{
if (emsg_not_now())
return TRUE; /* no error messages at the moment */
#ifdef HAVE_STDARG_H
vim_snprintf((char *)IObuff, IOSIZE, (char *)s, a1, a2);
#else
vim_snprintf((char *)IObuff, IOSIZE, (char *)s, (long_u)a1, (long_u)a2);
#endif
return emsg(IObuff);
}
/*
* Print an error message with one "%ld" and one long int argument.
* This is not in message.c to avoid a warning for prototypes.
*/
int
emsgn(s, n)
char_u *s;
long n;
{
if (emsg_not_now())
return TRUE; /* no error messages at the moment */
vim_snprintf((char *)IObuff, IOSIZE, (char *)s, n);
return emsg(IObuff);
}
#if defined(FEAT_SPELL) || defined(FEAT_PERSISTENT_UNDO) || defined(PROTO)
/*
* Read 2 bytes from "fd" and turn them into an int, MSB first.
*/
int
get2c(fd)
FILE *fd;
{
int n;
n = getc(fd);
n = (n << 8) + getc(fd);
return n;
}
/*
* Read 3 bytes from "fd" and turn them into an int, MSB first.
*/
int
get3c(fd)
FILE *fd;
{
int n;
n = getc(fd);
n = (n << 8) + getc(fd);
n = (n << 8) + getc(fd);
return n;
}
/*
* Read 4 bytes from "fd" and turn them into an int, MSB first.
*/
int
get4c(fd)
FILE *fd;
{
int n;
n = getc(fd);
n = (n << 8) + getc(fd);
n = (n << 8) + getc(fd);
n = (n << 8) + getc(fd);
return n;
}
/*
* Read 8 bytes from "fd" and turn them into a time_t, MSB first.
*/
time_t
get8ctime(fd)
FILE *fd;
{
time_t n = 0;
int i;
for (i = 0; i < 8; ++i)
n = (n << 8) + getc(fd);
return n;
}
/*
* Read a string of length "cnt" from "fd" into allocated memory.
* Returns NULL when out of memory or unable to read that many bytes.
*/
char_u *
read_string(fd, cnt)
FILE *fd;
int cnt;
{
char_u *str;
int i;
int c;
/* allocate memory */
str = alloc((unsigned)cnt + 1);
if (str != NULL)
{
/* Read the string. Quit when running into the EOF. */
for (i = 0; i < cnt; ++i)
{
c = getc(fd);
if (c == EOF)
{
vim_free(str);
return NULL;
}
str[i] = c;
}
str[i] = NUL;
}
return str;
}
/*
* Write a number to file "fd", MSB first, in "len" bytes.
*/
int
put_bytes(fd, nr, len)
FILE *fd;
long_u nr;
int len;
{
int i;
for (i = len - 1; i >= 0; --i)
if (putc((int)(nr >> (i * 8)), fd) == EOF)
return FAIL;
return OK;
}
#ifdef _MSC_VER
# if (_MSC_VER <= 1200)
/* This line is required for VC6 without the service pack. Also see the
* matching #pragma below. */
# pragma optimize("", off)
# endif
#endif
/*
* Write time_t to file "fd" in 8 bytes.
*/
void
put_time(fd, the_time)
FILE *fd;
time_t the_time;
{
int c;
int i;
time_t wtime = the_time;
/* time_t can be up to 8 bytes in size, more than long_u, thus we
* can't use put_bytes() here.
* Another problem is that ">>" may do an arithmetic shift that keeps the
* sign. This happens for large values of wtime. A cast to long_u may
* truncate if time_t is 8 bytes. So only use a cast when it is 4 bytes,
* it's safe to assume that long_u is 4 bytes or more and when using 8
* bytes the top bit won't be set. */
for (i = 7; i >= 0; --i)
{
if (i + 1 > (int)sizeof(time_t))
/* ">>" doesn't work well when shifting more bits than avail */
putc(0, fd);
else
{
#if defined(SIZEOF_TIME_T) && SIZEOF_TIME_T > 4
c = (int)(wtime >> (i * 8));
#else
c = (int)((long_u)wtime >> (i * 8));
#endif
putc(c, fd);
}
}
}
#ifdef _MSC_VER
# if (_MSC_VER <= 1200)
# pragma optimize("", on)
# endif
#endif
#endif