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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"
-
- #ifdef HAVE_FCNTL_H
- # include <fcntl.h> /* for chdir() */
- #endif
-
- #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()
- {
- 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()
- {
- int x = 0;
- char_u *line = ml_get_curline();
- char_u *p;
-
- for (p = line; (colnr_T)(p - line) < curwin->w_cursor.col; )
- x += lbr_chartabsize_adv(&p, x);
-
- return x + curwin->w_cursor.coladd;
- }
-
- /*
- * Get the screen position of character col with a coladd.
- */
- int
- getviscol2(col, coladd)
- colnr_T col;
- colnr_T coladd;
- {
- int x = 0;
- char_u *line = ml_get_curline();
- char_u *p;
-
- for (p = line; (colnr_T)(p - line) < col; )
- x += lbr_chartabsize_adv(&p, x);
-
- return x + coladd;
- }
-
- /*
- * Go to column "wcol", and add/insert white space as neccessary 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 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)
- curwin->w_valid &= ~VALID_VIRTCOL;
- else
- {
- /* Virtcol is valid */
- curwin->w_valid |= VALID_VIRTCOL;
- curwin->w_virtcol = wcol;
- }
- return rc;
- }
-
- 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 excact 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;
-
- one_more = (State & INSERT) || restart_edit != NUL
- #ifdef FEAT_VISUAL
- || (VIsual_active && *p_sel != 'o')
- #endif
- ;
- line = ml_get_curline();
-
- /* The difference between wcol and col will be used to set coladd
- * and insert spaces.
- */
- 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 ((addspaces || 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)
- {
- /* In case of line wrapping don't move the cursor beyond the
- * right screen edge. */
- wcol = (csize / width + 1) * width - 1;
- }
- }
- #endif
-
- idx = -1;
- ptr = line;
- while (col <= wcol && *ptr != NUL)
- {
- /* Count a tab for what it's worth (if list mode not on) */
- csize = lbr_chartabsize_adv(&ptr, col);
- 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;
- col -= csize;
- }
-
- #ifdef FEAT_VIRTUALEDIT
- if (virtual_active() && addspaces
- && ((col != wcol && col != wcol + 1) || csize > 1))
- {
- 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 = alloc(linelen + csize);
- int t, s = 0;
- int v;
-
- /*
- * break a tab
- */
- if (newline == NULL || -correct > csize)
- 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)
- {
- int a = col;
- int b = wcol - a;
-
- /* modify the real cursor position to make the cursor appear at
- * the wanted column */
- if (b > 0 && b < (MAXCOL - 2 * W_WIDTH(curwin)))
- pos->coladd = b;
-
- col += b;
- }
- #endif
-
- #ifdef FEAT_MBYTE
- /* prevent cursor from moving on the trail byte */
- if (has_mbyte)
- mb_adjust_cursor();
- #endif
-
- if (col < wcol)
- return FAIL;
- return OK;
- }
-
- /*
- * inc(p)
- *
- * Increment the line pointer 'p' 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_cursor()
- {
- return inc(&curwin->w_cursor);
- }
-
- 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_check)(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()
- {
- #ifdef FEAT_MBYTE
- return (has_mbyte ? mb_dec(&curwin->w_cursor) : dec(&curwin->w_cursor));
- #else
- return dec(&curwin->w_cursor);
- #endif
- }
-
- int
- dec(lp)
- pos_T *lp;
- {
- if (lp->col > 0)
- { /* still within line */
- lp->col--;
- return 0;
- }
- if (lp->lnum > 1)
- { /* there is a prior line */
- lp->lnum--;
- lp->col = (colnr_T)STRLEN(ml_get(lp->lnum));
- 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;
- }
-
- /*
- * 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 + 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 in Insert mode, restarting Insert
- * mode or when in Visual mode and 'selection' isn't "old" */
- if (State & INSERT || restart_edit
- #ifdef FEAT_VISUAL
- || (VIsual_active && *p_sel != 'o')
- #endif
- || virtual_active())
- curwin->w_cursor.col = len;
- else
- curwin->w_cursor.col = len - 1;
- }
-
- #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)
- curwin->w_cursor.coladd = oldcol - curwin->w_cursor.col;
- #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.
- */
- getvcol(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])
- printf(_("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 unsinged 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)
- {
- vim_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;
- try_again = mf_release_all();
- 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;
- EMSG2(_("E342: Out of memory! (allocating %lu bytes)"), size);
- did_outofmem_msg = TRUE;
- }
- }
-
- /*
- * copy a 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;
- }
-
- 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;
- }
-
- #if 0 /* not used */
- /*
- * like vim_strnsave(), but remove backslashes from the string.
- */
- char_u *
- vim_strnsave_esc(string, len)
- char_u *string;
- int len;
- {
- char_u *p1, *p2;
-
- p1 = alloc((unsigned) (len + 1));
- if (p1 != NULL)
- {
- STRNCPY(p1, string, len);
- p1[len] = NUL;
- for (p2 = p1; *p2; ++p2)
- if (*p2 == '\\' && *(p2 + 1) != NUL)
- STRCPY(p2, p2 + 1);
- }
- return p1;
- }
- #endif
-
- /*
- * 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;
- {
- 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_check)(p)) > 1)
- {
- length += l; /* count a multibyte char */
- p += l - 1;
- continue;
- }
- #endif
- if (vim_strchr(esc_chars, *p) != NULL)
- ++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_check)(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)
- *p2++ = '\\';
- *p2++ = *p;
- }
- *p2 = 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
- }
- }
-
- /*
- * 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
- */
- 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;
- }
-
- /*
- * vim_strncpy()
- *
- * This is here because strncpy() does not guarantee successful results when
- * the to and from strings overlap. It is only currently called from nextwild()
- * which copies part of the command line to another part of the command line.
- * This produced garbage when expanding files etc in the middle of the command
- * line (on my terminal, anyway) -- webb.
- */
- void
- vim_strncpy(to, from, len)
- char_u *to;
- char_u *from;
- int len;
- {
- int i;
-
- if (to <= from)
- {
- while (len-- && *from)
- *to++ = *from++;
- if (len >= 0)
- *to = *from; /* Copy NUL */
- }
- else
- {
- for (i = 0; i < len; i++)
- {
- to++;
- if (*from++ == NUL)
- {
- i++;
- break;
- }
- }
- for (; i > 0; i--)
- *--to = *--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
- */
- void
- vim_free(x)
- void *x;
- {
- if (x != NULL)
- {
- #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.
- * return 0 for match, < 0 for smaller, > 0 for bigger
- */
- int
- vim_stricmp(s1, s2)
- char *s1;
- char *s2;
- {
- int i;
-
- for (;;)
- {
- i = (int)TO_LOWER(*s1) - (int)TO_LOWER(*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.
- * 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)TO_LOWER(*s1) - (int)TO_LOWER(*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
-
- #if 0 /* currently not used */
- /*
- * Check if string "s2" appears somewhere in "s1" while ignoring case.
- * Return NULL if not, a pointer to the first occurrence if it does.
- */
- char_u *
- vim_stristr(s1, s2)
- char_u *s1;
- char_u *s2;
- {
- char_u *p;
- int len = STRLEN(s2);
- char_u *end = s1 + STRLEN(s1) - len;
-
- for (p = s1; p <= end; ++p)
- if (STRNICMP(p, s2, len) == 0)
- return p;
- return NULL;
- }
- #endif
-
- /*
- * Version of strchr() and strrchr() that handle unsigned char strings
- * with characters above 128 correctly. Also it 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_check)(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_check)(p);
- }
- return NULL;
- }
- if (has_mbyte)
- {
- while ((b = *p) != NUL)
- {
- if (b == c)
- return p;
- p += (*mb_ptr2len_check)(p);
- }
- return NULL;
- }
- #endif
- while ((b = *p) != NUL)
- {
- if (b == 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_u *
- vim_strrchr(string, c)
- char_u *string;
- int c;
- {
- char_u *retval = NULL;
-
- while (*string)
- {
- if (*string == c)
- retval = string;
- #ifdef FEAT_MBYTE
- if (has_mbyte)
- string += (*mb_ptr2len_check)(string);
- else
- #endif
- ++string;
- }
- 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;
- #ifdef FEAT_MBYTE
- if (has_mbyte)
- s += (*mb_ptr2len_check)(s);
- else
- #endif
- ++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 hanlding growing arrays.
- */
-
- /*
- * Clear an allocated growing array.
- */
- void
- ga_clear(gap)
- garray_T *gap;
- {
- vim_free(gap->ga_data);
- ga_init(gap);
- }
-
- #if defined(FEAT_EVAL) || defined(PROTO)
- /*
- * 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);
- }
- #endif
-
- /*
- * 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_room = 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_room < 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_room = 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;
- }
-
- #if defined(FEAT_EVAL) || defined(FEAT_CMDL_COMPL) || defined(FEAT_PYTHON) \
- || defined(FEAT_RUBY) || defined(FEAT_TCL) || defined(FEAT_PERL) \
- || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MOTIF) || defined(PROTO)
- /*
- * 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;
- gap->ga_room -= 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;
- --gap->ga_room;
- }
- }
- #endif
-
- /************************************************************************
- * 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_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 seperately!
- */
- #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, KS_EXTRA, (int)KE_S_TAB, 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 */
- {CR, (char_u *)"CR"},
- {CR, (char_u *)"Return"}, /* Alternative name */
- {CR, (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_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_END, (char_u *)"End"},
- {K_KEND, (char_u *)"kEnd"},
- {K_XEND, (char_u *)"xEnd"},
- {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_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 *)"MouseDown"},
- {K_MOUSEUP, (char_u *)"MouseUp"},
- {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},
- /* 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;
-
- if (c > 0 && c <= 255) /* avoid TO_UPPER() with number > 255 */
- {
- c = TO_UPPER(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;
- }
-
- #if 0 /* not used */
- /*
- * Decide whether the given key code (K_*) is a shifted special
- * key (by looking at mod_mask). If it is, then return the appropriate shifted
- * key code, otherwise just return the character as is.
- */
- int
- check_shifted_spec_key(c)
- int c;
- {
- return simplify_key(c, &mod_mask);
- }
- #endif
-
- /*
- * 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;
- }
-
- /*
- * 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) == modifier_keys_table[i + 1]
- && KEY2TERMCAP1(c) == 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;
- int key;
- int dlen = 0;
-
- key = find_special_key(srcp, &modifiers, keycode);
- 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)
- char_u **srcp;
- int *modp;
- int keycode; /* prefer key code, e.g. K_DEL instead of DEL */
- {
- char_u *last_dash;
- char_u *end_of_name;
- char_u *src;
- char_u *bp;
- int modifiers;
- int bit;
- int key;
- long_u 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 && 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);
-
- /*
- * 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;
-
- if ((modifiers & MOD_MASK_SHIFT) && ASCII_ISALPHA(key))
- {
- key = TO_UPPER(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;
- }
- if ((modifiers & MOD_MASK_ALT) && key < 0x80)
- {
- 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 (TO_LOWER(table_name[j]) != TO_LOWER(name[j]))
- break;
- if (!vim_isIDc(name[j]) && table_name[j] == NUL)
- return key_names_table[i].key;
- }
- return 0;
- }
-
- #ifdef FEAT_CMDL_COMPL
- char_u *
- get_key_name(i)
- int i;
- {
- if (i >= KEY_NAMES_TABLE_LEN)
- return NULL;
- return key_names_table[i].name;
- }
- #endif
-
- #ifdef FEAT_MOUSE
- /*
- * 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 < 0.
- * Used for 'mousefocus' in gui_mouse_moved() */
- if (mouse_col < 0)
- {
- mouse_col = 0;
- 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 recongnized, 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 (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);
- #ifdef FEAT_WINDOWS
- check_status(curbuf);
- #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;
-
- if (p_verbose > 3)
- smsg((char_u *)_("Calling shell to execute: \"%s\""), cmd);
-
- 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);
- #endif
-
- return retval;
- }
-
- /*
- * VISUAL 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)
- return VISUAL;
- else
- #endif
- if (finish_op)
- return OP_PENDING;
- }
- return State;
- }
-
- #if defined(FEAT_SESSION) || defined(MSWIN) \
- || (defined(FEAT_GUI_GTK) && defined(FEAT_WINDOWS)) \
- || defined(FEAT_SUN_WORKSHOP) || 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 temp_string[MAXPATHL];
- char_u *p;
- char_u *t;
-
- STRCPY(temp_string, fname);
- p = get_past_head(temp_string);
- t = gettail(temp_string);
- while (t > p && vim_ispathsep(t[-1]))
- --t;
- *t = NUL; /* chop off end of string */
-
- return mch_chdir((char *)temp_string) == 0 ? OK : FAIL;
- }
- #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, 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_("Missing colon");
- if (colonp == modep)
- return (char_u *)N_("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 && TO_LOWER(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_("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 (!isdigit(*p))
- return (char_u *)N_("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 (!isdigit(*p))
- return (char_u *)N_("digit expected");
- n = getdigits(&p);
- if (len == 3) /* "ver" or "hor" */
- {
- if (n == 0)
- return (char_u *)N_("Illegal percentage");
- if (round == 2)
- {
- if (TO_LOWER(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;
- }
-
- /*
- * 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))
- 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;
- }
-
- # 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)
- return;
-
- /* Postpone the updating when more is to come. Speeds up executing of
- * mappings. */
- if (shape_idx == -1 && char_avail())
- {
- postponed_mouseshape = TRUE;
- return;
- }
-
- 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 suypport.
- * 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.
- */
-
- /* 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));
-
- 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
- */
- int
- decrypt_byte()
- {
- ush temp;
-
- temp = (ush)keys[2] | 2;
- return (int)(((unsigned)(temp * (temp ^ 1)) >> 8) & 0xff);
- }
-
- /*
- * Update the encryption keys with the next byte of plain text
- */
- int
- update_keys(c)
- int c; /* byte of plain text */
- {
- 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));
- return c;
- }
-
- /*
- * 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)
- {
- make_crc_tab();
- keys[0] = 305419896L;
- keys[1] = 591751049L;
- keys[2] = 878082192L;
- while (*passwd != '\0')
- update_keys((int)*passwd++);
- }
- }
-
- /*
- * Ask the user for a crypt key.
- * When "store" is TRUE, the new key in 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);
- cmdline_star = FALSE;
-
- if (p1 == NULL)
- break;
-
- if (round == twice)
- {
- if (p2 != NULL && STRCMP(p1, p2) != 0)
- {
- MSG(_("Keys don't match!"));
- vim_free(p1);
- vim_free(p2);
- p2 = NULL;
- round = -1; /* do it again */
- continue;
- }
- if (store)
- {
- set_option_value((char_u *)"key", 0L, p1, OPT_LOCAL);
- vim_free(p1);
- p1 = curbuf->b_p_key;
- }
- break;
- }
- p2 = p1;
- }
-
- /* since the user typed this, no need to wait for return */
- need_wait_return = FALSE;
- msg_didout = FALSE;
-
- vim_free(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 the 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; /* device number (-1 if not set) */
- 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 expecially 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 maximium 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_visited_lists_list: the list of all visited lists
- * 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_need_dir: TRUE if we search for a directory
- */
- 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_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_need_dir;
- }ff_search_ctx_T;
- static ff_search_ctx_T *ff_search_ctx = NULL;
-
- /* used for expanding filenames */
- static char_u *ff_expand_buffer = NULL;
-
- /* 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 ff_free_visited_list __ARGS((ff_visited_T *vl));
- static ff_visited_list_hdr_T* ff_get_visited_list __ARGS((char_u *));
- #ifdef FEAT_PATH_EXTRA
- static int ff_wc_equal __ARGS((char_u *s1, char_u *s2));
- #endif
-
- static void ff_push __ARGS((ff_stack_T *));
- static ff_stack_T * ff_pop __ARGS((void));
- static void ff_clear __ARGS((void));
- static void ff_free_stack_element __ARGS((ff_stack_T *));
- #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
-
- #ifdef FEAT_SEARCHPATH
- static char_u *find_file_in_path_option __ARGS((char_u *ptr, int len, int options, int first, char_u *path_option, int need_dir, char_u *rel_fname));
- #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 occured.
- *
- * 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.
- *
- * 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 absolut, 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 'need_dir' to TRUE if you want to search for a directory
- * instead of a file.
- *
- * A search context returned by a previous call to vim_findfile_init() can be
- * passed in the parameter 'search_ctx'. This context is than reused and
- * reinitialized with the new parameters. The list of already viseted
- * directories from this context is only deleted if the parameter
- * 'free_visited' is true. Be aware that the passed search_context is freed if
- * the reinitialization fails.
- *
- * If you don't have a search context from a previous call 'search_ctx' must be
- * NULL.
- *
- * This function silently ignores a few errors, vim_findfile() will have
- * limited functionality then.
- */
- /*ARGSUSED*/
- void *
- vim_findfile_init(path, filename, stopdirs, level, free_visited, need_dir,
- search_ctx, tagfile, rel_fname)
- char_u *path;
- char_u *filename;
- char_u *stopdirs;
- int level;
- int free_visited;
- int need_dir;
- void *search_ctx;
- int tagfile;
- char_u *rel_fname; /* file name to use for "." */
- {
- #ifdef FEAT_PATH_EXTRA
- char_u *wc_part;
- #endif
- ff_stack_T *sptr;
-
- /* If a search context is given by the caller, reuse it, else allocate a
- * new one.
- */
- if (search_ctx != NULL)
- ff_search_ctx = search_ctx;
- else
- {
- ff_search_ctx = (ff_search_ctx_T*)alloc(
- (unsigned)sizeof(ff_search_ctx_T));
- if (ff_search_ctx == NULL)
- goto error_return;
- memset(ff_search_ctx, 0, sizeof(ff_search_ctx_T));
- }
-
- /* clear the search context, but NOT the visited lists */
- ff_clear();
-
- /* clear visited list if wanted */
- if (free_visited == TRUE)
- vim_findfile_free_visited(ff_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.
- */
- ff_search_ctx->ffsc_visited_list = ff_get_visited_list(filename);
- if (ff_search_ctx->ffsc_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. */
- STRNCPY(ff_expand_buffer, rel_fname, len);
- ff_expand_buffer[len] = NUL;
- ff_search_ctx->ffsc_start_dir = FullName_save(ff_expand_buffer,
- FALSE);
- }
- else
- ff_search_ctx->ffsc_start_dir = vim_strnsave(rel_fname, len);
- if (ff_search_ctx->ffsc_start_dir == NULL)
- goto error_return;
- if (*++path != NUL)
- ++path;
- }
- else if (*path == NUL || !vim_isAbsName(path))
- {
- if (mch_dirname(ff_expand_buffer, MAXPATHL) == OK)
- ff_search_ctx->ffsc_start_dir = vim_strsave(ff_expand_buffer);
-
- if (ff_search_ctx->ffsc_start_dir == NULL)
- goto error_return;
- }
-
- #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,
- * ff_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;
- ff_search_ctx->ffsc_stopdirs_v =
- (char_u **)alloc((unsigned)sizeof(char_u *));
-
- if (ff_search_ctx->ffsc_stopdirs_v != NULL)
- {
- do
- {
- char_u *helper;
- void *ptr;
-
- helper = walker;
- ptr = vim_realloc(ff_search_ctx->ffsc_stopdirs_v,
- dircount+1 * sizeof(char_u *));
- if (ptr)
- ff_search_ctx->ffsc_stopdirs_v = ptr;
- else
- /* ignore, keep what we have and continue */
- break;
- walker = vim_strchr(walker, ';');
- if (walker)
- {
- ff_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.
- */
- ff_search_ctx->ffsc_stopdirs_v[dircount-1] =
- vim_strsave(helper);
-
- dircount++;
-
- } while (walker != NULL);
- ff_search_ctx->ffsc_stopdirs_v[dircount-1] = NULL;
- }
- }
- #endif
-
- #ifdef FEAT_PATH_EXTRA
- ff_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_u *errpt;
-
- /* save the fix part of the path */
- ff_search_ctx->ffsc_fix_path = vim_strnsave(path,
- (int)(wc_part - path));
-
- /*
- * copy wc_path and add restricts to the '**' wildcard.
- * The octett 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 technic 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, (char **)&errpt, 10);
- if (errpt != wc_part && llevel > 0 && llevel < 255)
- ff_expand_buffer[len++] = llevel;
- else if (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 = errpt;
- if (*wc_part != PATHSEP && *wc_part != NUL)
- {
- 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;
- ff_search_ctx->ffsc_wc_path =
- vim_strsave(ff_expand_buffer);
-
- if (ff_search_ctx->ffsc_wc_path == NULL)
- goto error_return;
- }
- else
- #endif
- ff_search_ctx->ffsc_fix_path = vim_strsave(path);
-
- if (ff_search_ctx->ffsc_start_dir == NULL)
- {
- /* store the fix part as startdir.
- * This is needed if the parameter path is fully qualified.
- */
- ff_search_ctx->ffsc_start_dir = vim_strsave(ff_search_ctx->ffsc_fix_path);
- if (ff_search_ctx->ffsc_start_dir)
- ff_search_ctx->ffsc_fix_path[0] = NUL;
- }
-
- /* create an absolute path */
- STRCPY(ff_expand_buffer, ff_search_ctx->ffsc_start_dir);
- add_pathsep(ff_expand_buffer);
- STRCAT(ff_expand_buffer, ff_search_ctx->ffsc_fix_path);
- add_pathsep(ff_expand_buffer);
-
- sptr = ff_create_stack_element(ff_expand_buffer,
- #ifdef FEAT_PATH_EXTRA
- ff_search_ctx->ffsc_wc_path,
- #endif
- level, 0);
-
- if (sptr == NULL)
- goto error_return;
-
- ff_push(sptr);
-
- ff_search_ctx->ffsc_file_to_search = vim_strsave(filename);
- if (ff_search_ctx->ffsc_file_to_search == NULL)
- goto error_return;
-
- return ff_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(ff_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'
- */
- mch_memmove(r_ptr, r_ptr + 1, STRLEN(r_ptr));
- 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 (NULL == ctx)
- return;
-
- ff_search_ctx = ctx;
-
- vim_findfile_free_visited(ctx);
- ff_clear();
- vim_free(ctx);
- ff_search_ctx = NULL;
- }
-
- /*
- * 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, it the returns NULL.
- *
- * 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)
- void *search_ctx;
- {
- char_u *file_path;
- #ifdef FEAT_PATH_EXTRA
- char_u *rest_of_wildcards;
- char_u *path_end = NULL;
- #endif
- ff_stack_T *ctx;
- #if defined(FEAT_SEARCHPATH) || defined(FEAT_PATH_EXTRA)
- int len;
- #endif
- int i;
- char_u *p;
- #ifdef FEAT_SEARCHPATH
- char_u *suf;
- #endif
-
- if (search_ctx == NULL)
- return NULL;
-
- ff_search_ctx = (ff_search_ctx_T*)search_ctx;
-
- /*
- * 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 (ff_search_ctx->ffsc_start_dir != NULL)
- path_end = &ff_search_ctx->ffsc_start_dir[STRLEN(ff_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 */
- ctx = ff_pop();
- if (ctx == 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 ctx->ff_filearray == NULL)
- */
- if (ctx->ffs_filearray == NULL
- && ff_check_visited(&ff_search_ctx->ffsc_visited_list
- ->ffvl_visited_list,
- ctx->ffs_fix_path
- #ifdef FEAT_PATH_EXTRA
- , ctx->ffs_wc_path
- #endif
- ) == FAIL)
- {
- #ifdef FF_VERBOSE
- if (p_verbose >= 5)
- {
- /* always scroll up, don't overwrite */
- msg_scroll = TRUE;
- smsg((char_u *)"Already Searched: %s (%s)",
- ctx->ffs_fix_path, ctx->ffs_wc_path);
- /* don't overwrite this either */
- msg_puts((char_u *)"\n");
- cmdline_row = msg_row;
- }
- #endif
- ff_free_stack_element(ctx);
- continue;
- }
- #ifdef FF_VERBOSE
- else if (p_verbose >= 5)
- {
- /* always scroll up, don't overwrite */
- msg_scroll = TRUE;
- smsg((char_u *)"Searching: %s (%s)", ctx->ffs_fix_path,
- ctx->ffs_wc_path);
- /* don't overwrite this either */
- msg_puts((char_u *)"\n");
- cmdline_row = msg_row;
- }
- #endif
-
- /* check depth */
- if (ctx->ffs_level <= 0)
- {
- ff_free_stack_element(ctx);
- 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 (ctx->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(ctx->ffs_fix_path)
- && ff_search_ctx->ffsc_start_dir)
- {
- STRCPY(file_path, ff_search_ctx->ffsc_start_dir);
- add_pathsep(file_path);
- }
-
- /* append the fix part of the search path */
- STRCAT(file_path, ctx->ffs_fix_path);
- add_pathsep(file_path);
-
- #ifdef FEAT_PATH_EXTRA
- rest_of_wildcards = ctx->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 */
- mch_memmove(rest_of_wildcards,
- rest_of_wildcards + 3,
- STRLEN(rest_of_wildcards + 3) + 1);
- }
- else
- rest_of_wildcards += 3;
-
- if (ctx->ffs_star_star_empty == 0)
- {
- /* if not done before, expand '**' to empty */
- ctx->ffs_star_star_empty = 1;
- dirptrs[1] = ctx->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 somthing 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]))
- {
- ctx->ffs_filearray = (char_u **)
- alloc((unsigned)sizeof(char *));
- if (ctx->ffs_filearray != NULL
- && (ctx->ffs_filearray[0]
- = vim_strsave(dirptrs[0])) != NULL)
- ctx->ffs_filearray_size = 1;
- else
- ctx->ffs_filearray_size = 0;
- }
- else
- expand_wildcards((dirptrs[1] == NULL) ? 1 : 2, dirptrs,
- &ctx->ffs_filearray_size,
- &ctx->ffs_filearray,
- EW_DIR|EW_ADDSLASH|EW_SILENT);
-
- ctx->ffs_filearray_cur = 0;
- ctx->ffs_stage = 0;
- }
- #ifdef FEAT_PATH_EXTRA
- else
- rest_of_wildcards = &ctx->ffs_wc_path[STRLEN(ctx->ffs_wc_path)];
- #endif
-
- if (ctx->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 = ctx->ffs_filearray_cur;
- i < ctx->ffs_filearray_size; ++i)
- {
- if (!path_with_url(ctx->ffs_filearray[i])
- && !mch_isdir(ctx->ffs_filearray[i]))
- continue; /* not a directory */
-
- /* prepare the filename to be checked for existance
- * below */
- STRCPY(file_path, ctx->ffs_filearray[i]);
- add_pathsep(file_path);
- STRCAT(file_path, ff_search_ctx->ffsc_file_to_search);
-
- /*
- * Try without extra suffix and then with suffixes
- * from 'suffixesadd'.
- */
- #ifdef FEAT_SEARCHPATH
- len = (int)STRLEN(file_path);
- 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
- && (!ff_search_ctx->ffsc_need_dir
- || mch_isdir(file_path))))
- #ifndef FF_VERBOSE
- && (ff_check_visited(
- &ff_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(
- &ff_search_ctx->ffsc_visited_list->ffvl_visited_list,
- file_path
- #ifdef FEAT_PATH_EXTRA
- , (char_u *)""
- #endif
- ) == FAIL)
- {
- if (p_verbose >= 5)
- {
- /* always scroll up, don't overwrite */
- msg_scroll = TRUE;
- smsg((char_u *)"Already: %s", file_path);
- /* don't overwrite this either */
- msg_puts((char_u *)"\n");
- cmdline_row = msg_row;
- }
- continue;
- }
- #endif
-
- /* push dir to examine rest of subdirs later */
- ctx->ffs_filearray_cur = i + 1;
- ff_push(ctx);
-
- simplify_filename(file_path);
- if (mch_dirname(ff_expand_buffer, MAXPATHL)
- == OK)
- {
- p = shorten_fname(file_path,
- ff_expand_buffer);
- if (p != NULL)
- mch_memmove(file_path, p,
- STRLEN(p) + 1);
- }
- #ifdef FF_VERBOSE
- if (p_verbose >= 5)
- {
- /* always scroll up, don't overwrite */
- msg_scroll = TRUE;
- smsg((char_u *)"HIT: %s", file_path);
- /* don't overwrite this either */
- msg_puts((char_u *)"\n");
- cmdline_row = msg_row;
- }
- #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 = ctx->ffs_filearray_cur; i < ctx->ffs_filearray_size;
- ++i)
- {
- if (!mch_isdir(ctx->ffs_filearray[i]))
- continue; /* not a directory */
-
- ff_push(ff_create_stack_element(ctx->ffs_filearray[i],
- rest_of_wildcards, ctx->ffs_level - 1, 0));
- }
- }
- #endif
- ctx->ffs_filearray_cur = 0;
- ctx->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(ctx->ffs_wc_path, "**", 2) == 0)
- {
- for (i = ctx->ffs_filearray_cur; i < ctx->ffs_filearray_size; ++i)
- {
- if (STRCMP(ctx->ffs_filearray[i], ctx->ffs_fix_path) == 0)
- continue; /* don't repush same directory */
- if (!mch_isdir(ctx->ffs_filearray[i]))
- continue; /* not a directory */
- ff_push(ff_create_stack_element(ctx->ffs_filearray[i],
- ctx->ffs_wc_path, ctx->ffs_level - 1, 1));
- }
- }
- #endif
-
- /* we are done with the current directory */
- ff_free_stack_element(ctx);
-
- }
-
- #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 (ff_search_ctx->ffsc_start_dir
- && ff_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(ff_search_ctx->ffsc_start_dir,
- (int)(path_end - ff_search_ctx->ffsc_start_dir),
- ff_search_ctx->ffsc_stopdirs_v) == TRUE)
- break;
-
- /* cut of last dir */
- while (path_end > ff_search_ctx->ffsc_start_dir
- && *path_end == PATHSEP)
- path_end--;
- while (path_end > ff_search_ctx->ffsc_start_dir
- && *(path_end-1) != PATHSEP)
- path_end--;
- *path_end = 0;
- path_end--;
-
- if (*ff_search_ctx->ffsc_start_dir == 0)
- break;
-
- STRCPY(file_path, ff_search_ctx->ffsc_start_dir);
- add_pathsep(file_path);
- STRCAT(file_path, ff_search_ctx->ffsc_fix_path);
-
- /* create a new stack entry */
- sptr = ff_create_stack_element(file_path,
- ff_search_ctx->ffsc_wc_path, ff_search_ctx->ffsc_level, 0);
- if (sptr == NULL)
- break;
- ff_push(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)
- void *search_ctx;
- {
- ff_visited_list_hdr_T *vp;
-
- if (NULL == search_ctx)
- return;
-
- ff_search_ctx = (ff_search_ctx_T*)search_ctx;
-
- while (NULL != ff_search_ctx->ffsc_visited_lists_list)
- {
- vp = ff_search_ctx->ffsc_visited_lists_list->ffvl_next;
- ff_free_visited_list(
- ff_search_ctx->ffsc_visited_lists_list->ffvl_visited_list);
-
- vim_free(ff_search_ctx->ffsc_visited_lists_list->ffvl_filename);
- vim_free(ff_search_ctx->ffsc_visited_lists_list);
- ff_search_ctx->ffsc_visited_lists_list = vp;
- }
- ff_search_ctx->ffsc_visited_lists_list = NULL;
- }
-
- static void
- ff_free_visited_list(vl)
- ff_visited_T *vl;
- {
- ff_visited_T *vp;
-
- while (vl != NULL)
- {
- vp = vl->ffv_next;
- 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)
- char_u *filename;
- {
- ff_visited_list_hdr_T *retptr = NULL;
-
- /* check if a visited list for the given filename exists */
- if (ff_search_ctx->ffsc_visited_lists_list!= NULL)
- {
- retptr = ff_search_ctx->ffsc_visited_lists_list;
- while (retptr != NULL)
- {
- if (0 == STRCMP(filename, retptr->ffvl_filename))
- {
- #ifdef FF_VERBOSE
- if (p_verbose >= 5)
- {
- /* always scroll up, don't overwrite */
- msg_scroll = TRUE;
- smsg((char_u *)"ff_get_visited_list: FOUND list for %s",
- filename);
- /* don't overwrite this either */
- msg_puts((char_u *)"\n");
- cmdline_row = msg_row;
- }
- #endif
- return retptr;
- }
- retptr = retptr->ffvl_next;
- }
- }
-
- #ifdef FF_VERBOSE
- if (p_verbose >= 5)
- {
- /* always scroll up, don't overwrite */
- msg_scroll = TRUE;
- smsg((char_u *)"ff_get_visited_list: new list for %s",
- filename);
- /* don't overwrite this either */
- msg_puts((char_u *)"\n");
- cmdline_row = msg_row;
- }
- #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 = ff_search_ctx->ffsc_visited_lists_list;
- ff_search_ctx->ffsc_visited_lists_list = retptr;
-
- return retptr;
- }
-
- #ifdef FEAT_PATH_EXTRA
- /*
- * check if two wildcard pathes are equal. Returns TRUE or FALSE.
- * They are equal if:
- * - both pathes 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])
- {
- 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))
- {
- STRNCPY(ff_expand_buffer, fname, MAXPATHL);
- #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 == 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_ino = st.st_ino;
- vp->ffv_dev = st.st_dev;
- vp->ffv_fname[0] = NUL;
- }
- else
- {
- vp->ffv_ino = 0;
- vp->ffv_dev = -1;
- #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(ctx)
- ff_stack_T *ctx;
- {
- /* check for NULL pointer, not to return an error to the user, but
- * to prevent a crash
- */
- if (ctx != NULL)
- {
- ctx->ffs_prev = ff_search_ctx->ffsc_stack_ptr;
- ff_search_ctx->ffsc_stack_ptr = ctx;
- }
- }
-
- /*
- * pop a dir from the directory stack
- * returns NULL if stack is empty
- */
- static ff_stack_T *
- ff_pop()
- {
- ff_stack_T *sptr;
-
- sptr = ff_search_ctx->ffsc_stack_ptr;
- if (ff_search_ctx->ffsc_stack_ptr != NULL)
- ff_search_ctx->ffsc_stack_ptr = ff_search_ctx->ffsc_stack_ptr->ffs_prev;
-
- return sptr;
- }
-
- /*
- * free the given stack element
- */
- static void
- ff_free_stack_element(ctx)
- ff_stack_T *ctx;
- {
- /* vim_free handles possible NULL pointers */
- vim_free(ctx->ffs_fix_path);
- #ifdef FEAT_PATH_EXTRA
- vim_free(ctx->ffs_wc_path);
- #endif
-
- if (ctx->ffs_filearray != NULL)
- FreeWild(ctx->ffs_filearray_size, ctx->ffs_filearray);
-
- vim_free(ctx);
- }
-
- /*
- * clear the search context
- */
- static void
- ff_clear()
- {
- ff_stack_T *sptr;
-
- /* clear up stack */
- while ((sptr = ff_pop()) != NULL)
- ff_free_stack_element(sptr);
-
- vim_free(ff_search_ctx->ffsc_file_to_search);
- vim_free(ff_search_ctx->ffsc_start_dir);
- vim_free(ff_search_ctx->ffsc_fix_path);
- #ifdef FEAT_PATH_EXTRA
- vim_free(ff_search_ctx->ffsc_wc_path);
- #endif
-
- #ifdef FEAT_PATH_EXTRA
- if (ff_search_ctx->ffsc_stopdirs_v != NULL)
- {
- int i = 0;
-
- while (ff_search_ctx->ffsc_stopdirs_v[i] != NULL)
- {
- vim_free(ff_search_ctx->ffsc_stopdirs_v[i]);
- i++;
- }
- vim_free(ff_search_ctx->ffsc_stopdirs_v);
- }
- ff_search_ctx->ffsc_stopdirs_v = NULL;
- #endif
-
- /* reset everything */
- ff_search_ctx->ffsc_file_to_search = NULL;
- ff_search_ctx->ffsc_start_dir = NULL;
- ff_search_ctx->ffsc_fix_path = NULL;
- #ifdef FEAT_PATH_EXTRA
- ff_search_ctx->ffsc_wc_path = NULL;
- ff_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 && path[path_len - 1] == PATHSEP)
- 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 (STRNCMP(stopdirs_v[i], path, path_len) == 0
- && stopdirs_v[i][path_len] == PATHSEP)
- return TRUE;
- }
- else
- {
- if (STRCMP(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.
- *
- * 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,
- FALSE, rel_fname);
- }
-
- /*
- * 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,
- TRUE, rel_fname);
- }
-
- static char_u *
- find_file_in_path_option(ptr, len, options, first, path_option, need_dir, 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 *path_option; /* p_path or p_cdpath */
- int need_dir; /* looking for directory name */
- char_u *rel_fname; /* file name we are looking relative to. */
- {
- static void *search_ctx = NULL;
- static char_u *dir;
- static char_u *file_to_find = NULL;
- 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(file_to_find);
- file_to_find = vim_strsave(NameBuff);
- if (file_to_find == NULL) /* out of memory */
- {
- file_name = NULL;
- goto theend;
- }
- #ifdef VMS
- if (vim_isAbsName(file_to_find))
- file_to_find = vms_fixfilename(file_to_find);
- #endif
- }
-
- rel_to_curdir = (file_to_find[0] == '.'
- && (file_to_find[1] == NUL
- || vim_ispathsep(file_to_find[1])
- || (file_to_find[1] == '.'
- && (file_to_find[2] == NUL
- || vim_ispathsep(file_to_find[2])))));
- if (vim_isAbsName(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(file_to_find[0])
- /* handle "c:name" as absulute path */
- || (file_to_find[0] != NUL && file_to_find[1] == ':')
- #endif
- #ifdef AMIGA
- /* handle ":tmp" as absolute path */
- || 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(file_to_find))
- {
- file_name = vim_strsave(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(file_to_find);
- if (run == 1 && rel_to_curdir && (options & FNAME_REL)
- && STRLEN(rel_fname) + l < MAXPATHL)
- {
- STRCPY(NameBuff, rel_fname);
- STRCPY(gettail(NameBuff), file_to_find);
- l = (int)STRLEN(NameBuff);
- }
- else
- {
- STRCPY(NameBuff, file_to_find);
- run = 2;
- }
-
- /* When the file doesn't exist, try adding parts of
- * 'suffixesadd'. */
- buf = curbuf->b_p_sua;
- for (;;)
- {
- if (mch_getperm(NameBuff) >= 0
- && (!need_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(search_ctx);
- dir = path_option;
- did_findfile_init = FALSE;
- }
-
- for (;;)
- {
- if (did_findfile_init)
- {
- ff_search_ctx->ffsc_need_dir = need_dir;
- file_name = vim_findfile(search_ctx);
- ff_search_ctx->ffsc_need_dir = FALSE;
- 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(search_ctx);
- 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
- search_ctx = vim_findfile_init(buf, file_to_find, r_ptr, 100,
- FALSE, TRUE, search_ctx, FALSE, rel_fname);
- if (search_ctx != NULL)
- did_findfile_init = TRUE;
- vim_free(buf);
- }
- }
- }
- if (file_name == NULL && (options & FNAME_MESS))
- {
- if (first == TRUE)
- {
- if (need_dir)
- EMSG2(_("E344: Can't find directory \"%s\" in cdpath"),
- file_to_find);
- else
- EMSG2(_("E345: Can't find file \"%s\" in path"),
- file_to_find);
- }
- else
- {
- if (need_dir)
- EMSG2(_("E346: No more directory \"%s\" found in cdpath"),
- file_to_find);
- else
- EMSG2(_("E347: No more file \"%s\" found in path"),
- 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;
-
- dir_name = find_directory_in_path(new_dir, (int)STRLEN(new_dir),
- FNAME_MESS, curbuf->b_ffname);
- if (dir_name == NULL)
- return -1;
- return mch_chdir((char *)dir_name);
- #endif
- }
-
- /*
- * Get user name from machine-specific function and cache it.
- * Returns the user name in "buf[len]".
- * Some systems are quite slow in obtaining the user name (Windows NT).
- * Returns OK or FAIL.
- */
- int
- get_user_name(buf, len)
- char_u *buf;
- int len;
- {
- static char_u *name = NULL;
-
- if (name == NULL)
- {
- if (mch_get_user_name(buf, len) == FAIL)
- return FAIL;
- name = vim_strsave(buf);
- }
- else
- STRNCPY(buf, name, len);
- 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 elemets. */
- mch_memmove(buf, p1, elm_size);
- mch_memmove(p1, p2, elm_size);
- mch_memmove(p2, buf, elm_size);
- }
-
- vim_free(buf);
- }
- #endif
-
- #if defined(FEAT_EX_EXTRA) || defined(FEAT_CMDL_COMPL) || defined(PROTO)
- /*
- * 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);
- }
- #endif
-
- #if !defined(NO_EXPANDPATH) || defined(PROTO)
- /*
- * Compare path "p[]" to "q[]".
- * Return value like strcmp(p, q), but consider path separators.
- */
- int
- pathcmp(p, q)
- const char *p, *q;
- {
- int i;
- const char *s;
-
- for (i = 0; ; ++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
- TO_UPPER(p[i]) != TO_UPPER(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 */
- }
- }
-
- /* ignore a trailing slash, but not "//" or ":/" */
- if (s[i + 1] == NUL && i > 0 && !vim_ispathsep(s[i - 1])
- #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
-
- #if defined(FEAT_PRINTER) || defined(PROTO)
- /*
- * Parse a list of options in the form
- * option:value,option:value,option:value
- *
- * "value" can start with a number which is parsed out, e.g.
- * margin:12mm
- *
- * Returns error message for an illegal option, NULL otherwise.
- * Only used for the printer at the moment...
- */
- char_u *
- parse_list_options(option_str, table, table_size)
- char_u *option_str;
- option_table_T *table;
- int table_size;
- {
- char_u *stringp;
- char_u *colonp;
- char_u *commap;
- char_u *p;
- int idx = 0; /* init for GCC */
- int len;
-
- for (idx = 0; idx < table_size; ++idx)
- table[idx].present = FALSE;
-
- /*
- * Repeat for all comma separated parts.
- */
- stringp = option_str;
- while (*stringp)
- {
- colonp = vim_strchr(stringp, ':');
- if (colonp == NULL)
- return (char_u *)N_("Missing colon");
- commap = vim_strchr(stringp, ',');
- if (commap == NULL)
- commap = option_str + STRLEN(option_str);
-
- len = (int)(colonp - stringp);
-
- for (idx = 0; idx < table_size; ++idx)
- if (STRNICMP(stringp, table[idx].name, len) == 0)
- break;
-
- if (idx == table_size)
- return (char_u *)N_("Illegal component");
-
- p = colonp + 1;
- table[idx].present = TRUE;
-
- if (table[idx].hasnum)
- {
- if (!isdigit(*p))
- return (char_u *)N_("digit expected");
-
- table[idx].number = getdigits(&p); /*advances p*/
- }
-
- table[idx].string = p;
- table[idx].strlen = (int)(commap - p);
-
- stringp = commap;
- if (*stringp == ',')
- ++stringp;
- }
-
- return NULL;
- }
-
-
- #endif /*FEAT_PRINTER*/
-