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Update Services for Snow Leopard
[MacVim.git] / src / ex_getln.c
blob0192c59411ac052b3f6068754bd3ac1845ec3b6c
1 /* vi:set ts=8 sts=4 sw=4:
2 *
3 * VIM - Vi IMproved by Bram Moolenaar
4 *
5 * Do ":help uganda" in Vim to read copying and usage conditions.
6 * Do ":help credits" in Vim to see a list of people who contributed.
7 * See README.txt for an overview of the Vim source code.
8 */
9
10 /*
11 * ex_getln.c: Functions for entering and editing an Ex command line.
12 */
13
14 #include "vim.h"
15
16 /*
17 * Variables shared between getcmdline(), redrawcmdline() and others.
18 * These need to be saved when using CTRL-R |, that's why they are in a
19 * structure.
20 */
21 struct cmdline_info
22 {
23 char_u *cmdbuff; /* pointer to command line buffer */
24 int cmdbufflen; /* length of cmdbuff */
25 int cmdlen; /* number of chars in command line */
26 int cmdpos; /* current cursor position */
27 int cmdspos; /* cursor column on screen */
28 int cmdfirstc; /* ':', '/', '?', '=' or NUL */
29 int cmdindent; /* number of spaces before cmdline */
30 char_u *cmdprompt; /* message in front of cmdline */
31 int cmdattr; /* attributes for prompt */
32 int overstrike; /* Typing mode on the command line. Shared by
33 getcmdline() and put_on_cmdline(). */
34 expand_T *xpc; /* struct being used for expansion, xp_pattern
35 may point into cmdbuff */
36 int xp_context; /* type of expansion */
37 # ifdef FEAT_EVAL
38 char_u *xp_arg; /* user-defined expansion arg */
39 int input_fn; /* when TRUE Invoked for input() function */
40 # endif
41 };
42
43 /* The current cmdline_info. It is initialized in getcmdline() and after that
44 * used by other functions. When invoking getcmdline() recursively it needs
45 * to be saved with save_cmdline() and restored with restore_cmdline().
46 * TODO: make it local to getcmdline() and pass it around. */
47 static struct cmdline_info ccline;
48
49 static int cmd_showtail; /* Only show path tail in lists ? */
50
51 #ifdef FEAT_EVAL
52 static int new_cmdpos; /* position set by set_cmdline_pos() */
53 #endif
54
55 #ifdef FEAT_CMDHIST
56 typedef struct hist_entry
57 {
58 int hisnum; /* identifying number */
59 char_u *hisstr; /* actual entry, separator char after the NUL */
60 } histentry_T;
61
62 static histentry_T *(history[HIST_COUNT]) = {NULL, NULL, NULL, NULL, NULL};
63 static int hisidx[HIST_COUNT] = {-1, -1, -1, -1, -1}; /* lastused entry */
64 static int hisnum[HIST_COUNT] = {0, 0, 0, 0, 0};
65 /* identifying (unique) number of newest history entry */
66 static int hislen = 0; /* actual length of history tables */
67
68 static int hist_char2type __ARGS((int c));
69
70 static int in_history __ARGS((int, char_u *, int));
71 # ifdef FEAT_EVAL
72 static int calc_hist_idx __ARGS((int histype, int num));
73 # endif
74 #endif
75
76 #ifdef FEAT_RIGHTLEFT
77 static int cmd_hkmap = 0; /* Hebrew mapping during command line */
78 #endif
79
80 #ifdef FEAT_FKMAP
81 static int cmd_fkmap = 0; /* Farsi mapping during command line */
82 #endif
83
84 static int cmdline_charsize __ARGS((int idx));
85 static void set_cmdspos __ARGS((void));
86 static void set_cmdspos_cursor __ARGS((void));
87 #ifdef FEAT_MBYTE
88 static void correct_cmdspos __ARGS((int idx, int cells));
89 #endif
90 static void alloc_cmdbuff __ARGS((int len));
91 static int realloc_cmdbuff __ARGS((int len));
92 static void draw_cmdline __ARGS((int start, int len));
93 static void save_cmdline __ARGS((struct cmdline_info *ccp));
94 static void restore_cmdline __ARGS((struct cmdline_info *ccp));
95 static int cmdline_paste __ARGS((int regname, int literally, int remcr));
96 #if defined(FEAT_XIM) && (defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MACVIM))
97 static void redrawcmd_preedit __ARGS((void));
98 #endif
99 #ifdef FEAT_WILDMENU
100 static void cmdline_del __ARGS((int from));
101 #endif
102 static void redrawcmdprompt __ARGS((void));
103 static void cursorcmd __ARGS((void));
104 static int ccheck_abbr __ARGS((int));
105 static int nextwild __ARGS((expand_T *xp, int type, int options));
106 static void escape_fname __ARGS((char_u **pp));
107 static int showmatches __ARGS((expand_T *xp, int wildmenu));
108 static void set_expand_context __ARGS((expand_T *xp));
109 static int ExpandFromContext __ARGS((expand_T *xp, char_u *, int *, char_u ***, int));
110 static int expand_showtail __ARGS((expand_T *xp));
111 #ifdef FEAT_CMDL_COMPL
112 static int expand_shellcmd __ARGS((char_u *filepat, int *num_file, char_u ***file, int flagsarg));
113 static int ExpandRTDir __ARGS((char_u *pat, int *num_file, char_u ***file, char *dirname));
114 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
115 static int ExpandUserDefined __ARGS((expand_T *xp, regmatch_T *regmatch, int *num_file, char_u ***file));
116 static int ExpandUserList __ARGS((expand_T *xp, int *num_file, char_u ***file));
117 # endif
118 #endif
119
120 #ifdef FEAT_CMDWIN
121 static int ex_window __ARGS((void));
122 #endif
123
124 /*
125 * getcmdline() - accept a command line starting with firstc.
126 *
127 * firstc == ':' get ":" command line.
128 * firstc == '/' or '?' get search pattern
129 * firstc == '=' get expression
130 * firstc == '@' get text for input() function
131 * firstc == '>' get text for debug mode
132 * firstc == NUL get text for :insert command
133 * firstc == -1 like NUL, and break on CTRL-C
134 *
135 * The line is collected in ccline.cmdbuff, which is reallocated to fit the
136 * command line.
137 *
138 * Careful: getcmdline() can be called recursively!
139 *
140 * Return pointer to allocated string if there is a commandline, NULL
141 * otherwise.
142 */
143 char_u *
144 getcmdline(firstc, count, indent)
145 int firstc;
146 long count UNUSED; /* only used for incremental search */
147 int indent; /* indent for inside conditionals */
148 {
149 int c;
150 int i;
151 int j;
152 int gotesc = FALSE; /* TRUE when <ESC> just typed */
153 int do_abbr; /* when TRUE check for abbr. */
154 #ifdef FEAT_CMDHIST
155 char_u *lookfor = NULL; /* string to match */
156 int hiscnt; /* current history line in use */
157 int histype; /* history type to be used */
158 #endif
159 #ifdef FEAT_SEARCH_EXTRA
160 pos_T old_cursor;
161 colnr_T old_curswant;
162 colnr_T old_leftcol;
163 linenr_T old_topline;
164 # ifdef FEAT_DIFF
165 int old_topfill;
166 # endif
167 linenr_T old_botline;
168 int did_incsearch = FALSE;
169 int incsearch_postponed = FALSE;
170 #endif
171 int did_wild_list = FALSE; /* did wild_list() recently */
172 int wim_index = 0; /* index in wim_flags[] */
173 int res;
174 int save_msg_scroll = msg_scroll;
175 int save_State = State; /* remember State when called */
176 int some_key_typed = FALSE; /* one of the keys was typed */
177 #ifdef FEAT_MOUSE
178 /* mouse drag and release events are ignored, unless they are
179 * preceded with a mouse down event */
180 int ignore_drag_release = TRUE;
181 #endif
182 #ifdef FEAT_EVAL
183 int break_ctrl_c = FALSE;
184 #endif
185 expand_T xpc;
186 long *b_im_ptr = NULL;
187 #if defined(FEAT_WILDMENU) || defined(FEAT_EVAL) || defined(FEAT_SEARCH_EXTRA)
188 /* Everything that may work recursively should save and restore the
189 * current command line in save_ccline. That includes update_screen(), a
190 * custom status line may invoke ":normal". */
191 struct cmdline_info save_ccline;
192 #endif
193
194 #ifdef FEAT_SNIFF
195 want_sniff_request = 0;
196 #endif
197 #ifdef FEAT_EVAL
198 if (firstc == -1)
199 {
200 firstc = NUL;
201 break_ctrl_c = TRUE;
202 }
203 #endif
204 #ifdef FEAT_RIGHTLEFT
205 /* start without Hebrew mapping for a command line */
206 if (firstc == ':' || firstc == '=' || firstc == '>')
207 cmd_hkmap = 0;
208 #endif
209
210 ccline.overstrike = FALSE; /* always start in insert mode */
211 #ifdef FEAT_SEARCH_EXTRA
212 old_cursor = curwin->w_cursor; /* needs to be restored later */
213 old_curswant = curwin->w_curswant;
214 old_leftcol = curwin->w_leftcol;
215 old_topline = curwin->w_topline;
216 # ifdef FEAT_DIFF
217 old_topfill = curwin->w_topfill;
218 # endif
219 old_botline = curwin->w_botline;
220 #endif
221
222 /*
223 * set some variables for redrawcmd()
224 */
225 ccline.cmdfirstc = (firstc == '@' ? 0 : firstc);
226 ccline.cmdindent = (firstc > 0 ? indent : 0);
227
228 /* alloc initial ccline.cmdbuff */
229 alloc_cmdbuff(exmode_active ? 250 : indent + 1);
230 if (ccline.cmdbuff == NULL)
231 return NULL; /* out of memory */
232 ccline.cmdlen = ccline.cmdpos = 0;
233 ccline.cmdbuff[0] = NUL;
234
235 /* autoindent for :insert and :append */
236 if (firstc <= 0)
237 {
238 copy_spaces(ccline.cmdbuff, indent);
239 ccline.cmdbuff[indent] = NUL;
240 ccline.cmdpos = indent;
241 ccline.cmdspos = indent;
242 ccline.cmdlen = indent;
243 }
244
245 ExpandInit(&xpc);
246 ccline.xpc = &xpc;
247
248 #ifdef FEAT_RIGHTLEFT
249 if (curwin->w_p_rl && *curwin->w_p_rlc == 's'
250 && (firstc == '/' || firstc == '?'))
251 cmdmsg_rl = TRUE;
252 else
253 cmdmsg_rl = FALSE;
254 #endif
255
256 redir_off = TRUE; /* don't redirect the typed command */
257 if (!cmd_silent)
258 {
259 i = msg_scrolled;
260 msg_scrolled = 0; /* avoid wait_return message */
261 gotocmdline(TRUE);
262 msg_scrolled += i;
263 redrawcmdprompt(); /* draw prompt or indent */
264 set_cmdspos();
265 }
266 xpc.xp_context = EXPAND_NOTHING;
267 xpc.xp_backslash = XP_BS_NONE;
268 #ifndef BACKSLASH_IN_FILENAME
269 xpc.xp_shell = FALSE;
270 #endif
271
272 #if defined(FEAT_EVAL)
273 if (ccline.input_fn)
274 {
275 xpc.xp_context = ccline.xp_context;
276 xpc.xp_pattern = ccline.cmdbuff;
277 # if defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)
278 xpc.xp_arg = ccline.xp_arg;
279 # endif
280 }
281 #endif
282
283 /*
284 * Avoid scrolling when called by a recursive do_cmdline(), e.g. when
285 * doing ":@0" when register 0 doesn't contain a CR.
286 */
287 msg_scroll = FALSE;
288
289 State = CMDLINE;
290
291 if (firstc == '/' || firstc == '?' || firstc == '@')
292 {
293 /* Use ":lmap" mappings for search pattern and input(). */
294 if (curbuf->b_p_imsearch == B_IMODE_USE_INSERT)
295 b_im_ptr = &curbuf->b_p_iminsert;
296 else
297 b_im_ptr = &curbuf->b_p_imsearch;
298 if (*b_im_ptr == B_IMODE_LMAP)
299 State |= LANGMAP;
300 #ifdef USE_IM_CONTROL
301 im_set_active(*b_im_ptr == B_IMODE_IM);
302 #endif
303 }
304 #ifdef USE_IM_CONTROL
305 else if (p_imcmdline)
306 im_set_active(TRUE);
307 #endif
308
309 #ifdef FEAT_MOUSE
310 setmouse();
311 #endif
312 #ifdef CURSOR_SHAPE
313 ui_cursor_shape(); /* may show different cursor shape */
314 #endif
315
316 /* When inside an autocommand for writing "exiting" may be set and
317 * terminal mode set to cooked. Need to set raw mode here then. */
318 settmode(TMODE_RAW);
319
320 #ifdef FEAT_CMDHIST
321 init_history();
322 hiscnt = hislen; /* set hiscnt to impossible history value */
323 histype = hist_char2type(firstc);
324 #endif
325
326 #ifdef FEAT_DIGRAPHS
327 do_digraph(-1); /* init digraph typeahead */
328 #endif
329
330 /*
331 * Collect the command string, handling editing keys.
332 */
333 for (;;)
334 {
335 redir_off = TRUE; /* Don't redirect the typed command.
336 Repeated, because a ":redir" inside
337 completion may switch it on. */
338 #ifdef USE_ON_FLY_SCROLL
339 dont_scroll = FALSE; /* allow scrolling here */
340 #endif
341 quit_more = FALSE; /* reset after CTRL-D which had a more-prompt */
342
343 cursorcmd(); /* set the cursor on the right spot */
344
345 /* Get a character. Ignore K_IGNORE, it should not do anything, such
346 * as stop completion. */
347 do
348 {
349 c = safe_vgetc();
350 } while (c == K_IGNORE);
351
352 if (KeyTyped)
353 {
354 some_key_typed = TRUE;
355 #ifdef FEAT_RIGHTLEFT
356 if (cmd_hkmap)
357 c = hkmap(c);
358 # ifdef FEAT_FKMAP
359 if (cmd_fkmap)
360 c = cmdl_fkmap(c);
361 # endif
362 if (cmdmsg_rl && !KeyStuffed)
363 {
364 /* Invert horizontal movements and operations. Only when
365 * typed by the user directly, not when the result of a
366 * mapping. */
367 switch (c)
368 {
369 case K_RIGHT: c = K_LEFT; break;
370 case K_S_RIGHT: c = K_S_LEFT; break;
371 case K_C_RIGHT: c = K_C_LEFT; break;
372 case K_LEFT: c = K_RIGHT; break;
373 case K_S_LEFT: c = K_S_RIGHT; break;
374 case K_C_LEFT: c = K_C_RIGHT; break;
375 }
376 }
377 #endif
378 }
379
380 /*
381 * Ignore got_int when CTRL-C was typed here.
382 * Don't ignore it in :global, we really need to break then, e.g., for
383 * ":g/pat/normal /pat" (without the <CR>).
384 * Don't ignore it for the input() function.
385 */
386 if ((c == Ctrl_C
387 #ifdef UNIX
388 || c == intr_char
389 #endif
390 )
391 #if defined(FEAT_EVAL) || defined(FEAT_CRYPT)
392 && firstc != '@'
393 #endif
394 #ifdef FEAT_EVAL
395 && !break_ctrl_c
396 #endif
397 && !global_busy)
398 got_int = FALSE;
399
400 #ifdef FEAT_CMDHIST
401 /* free old command line when finished moving around in the history
402 * list */
403 if (lookfor != NULL
404 && c != K_S_DOWN && c != K_S_UP
405 && c != K_DOWN && c != K_UP
406 && c != K_PAGEDOWN && c != K_PAGEUP
407 && c != K_KPAGEDOWN && c != K_KPAGEUP
408 && c != K_LEFT && c != K_RIGHT
409 && (xpc.xp_numfiles > 0 || (c != Ctrl_P && c != Ctrl_N)))
410 {
411 vim_free(lookfor);
412 lookfor = NULL;
413 }
414 #endif
415
416 /*
417 * When there are matching completions to select <S-Tab> works like
418 * CTRL-P (unless 'wc' is <S-Tab>).
419 */
420 if (c != p_wc && c == K_S_TAB && xpc.xp_numfiles > 0)
421 c = Ctrl_P;
422
423 #ifdef FEAT_WILDMENU
424 /* Special translations for 'wildmenu' */
425 if (did_wild_list && p_wmnu)
426 {
427 if (c == K_LEFT)
428 c = Ctrl_P;
429 else if (c == K_RIGHT)
430 c = Ctrl_N;
431 }
432 /* Hitting CR after "emenu Name.": complete submenu */
433 if (xpc.xp_context == EXPAND_MENUNAMES && p_wmnu
434 && ccline.cmdpos > 1
435 && ccline.cmdbuff[ccline.cmdpos - 1] == '.'
436 && ccline.cmdbuff[ccline.cmdpos - 2] != '\\'
437 && (c == '\n' || c == '\r' || c == K_KENTER))
438 c = K_DOWN;
439 #endif
440
441 /* free expanded names when finished walking through matches */
442 if (xpc.xp_numfiles != -1
443 && !(c == p_wc && KeyTyped) && c != p_wcm
444 && c != Ctrl_N && c != Ctrl_P && c != Ctrl_A
445 && c != Ctrl_L)
446 {
447 (void)ExpandOne(&xpc, NULL, NULL, 0, WILD_FREE);
448 did_wild_list = FALSE;
449 #ifdef FEAT_WILDMENU
450 if (!p_wmnu || (c != K_UP && c != K_DOWN))
451 #endif
452 xpc.xp_context = EXPAND_NOTHING;
453 wim_index = 0;
454 #ifdef FEAT_WILDMENU
455 if (p_wmnu && wild_menu_showing != 0)
456 {
457 int skt = KeyTyped;
458 int old_RedrawingDisabled = RedrawingDisabled;
459
460 if (ccline.input_fn)
461 RedrawingDisabled = 0;
462
463 if (wild_menu_showing == WM_SCROLLED)
464 {
465 /* Entered command line, move it up */
466 cmdline_row--;
467 redrawcmd();
468 }
469 else if (save_p_ls != -1)
470 {
471 /* restore 'laststatus' and 'winminheight' */
472 p_ls = save_p_ls;
473 p_wmh = save_p_wmh;
474 last_status(FALSE);
475 save_cmdline(&save_ccline);
476 update_screen(VALID); /* redraw the screen NOW */
477 restore_cmdline(&save_ccline);
478 redrawcmd();
479 save_p_ls = -1;
480 }
481 else
482 {
483 # ifdef FEAT_VERTSPLIT
484 win_redraw_last_status(topframe);
485 # else
486 lastwin->w_redr_status = TRUE;
487 # endif
488 redraw_statuslines();
489 }
490 KeyTyped = skt;
491 wild_menu_showing = 0;
492 if (ccline.input_fn)
493 RedrawingDisabled = old_RedrawingDisabled;
494 }
495 #endif
496 }
497
498 #ifdef FEAT_WILDMENU
499 /* Special translations for 'wildmenu' */
500 if (xpc.xp_context == EXPAND_MENUNAMES && p_wmnu)
501 {
502 /* Hitting <Down> after "emenu Name.": complete submenu */
503 if (c == K_DOWN && ccline.cmdpos > 0
504 && ccline.cmdbuff[ccline.cmdpos - 1] == '.')
505 c = p_wc;
506 else if (c == K_UP)
507 {
508 /* Hitting <Up>: Remove one submenu name in front of the
509 * cursor */
510 int found = FALSE;
511
512 j = (int)(xpc.xp_pattern - ccline.cmdbuff);
513 i = 0;
514 while (--j > 0)
515 {
516 /* check for start of menu name */
517 if (ccline.cmdbuff[j] == ' '
518 && ccline.cmdbuff[j - 1] != '\\')
519 {
520 i = j + 1;
521 break;
522 }
523 /* check for start of submenu name */
524 if (ccline.cmdbuff[j] == '.'
525 && ccline.cmdbuff[j - 1] != '\\')
526 {
527 if (found)
528 {
529 i = j + 1;
530 break;
531 }
532 else
533 found = TRUE;
534 }
535 }
536 if (i > 0)
537 cmdline_del(i);
538 c = p_wc;
539 xpc.xp_context = EXPAND_NOTHING;
540 }
541 }
542 if ((xpc.xp_context == EXPAND_FILES
543 || xpc.xp_context == EXPAND_DIRECTORIES
544 || xpc.xp_context == EXPAND_SHELLCMD) && p_wmnu)
545 {
546 char_u upseg[5];
547
548 upseg[0] = PATHSEP;
549 upseg[1] = '.';
550 upseg[2] = '.';
551 upseg[3] = PATHSEP;
552 upseg[4] = NUL;
553
554 if (c == K_DOWN
555 && ccline.cmdpos > 0
556 && ccline.cmdbuff[ccline.cmdpos - 1] == PATHSEP
557 && (ccline.cmdpos < 3
558 || ccline.cmdbuff[ccline.cmdpos - 2] != '.'
559 || ccline.cmdbuff[ccline.cmdpos - 3] != '.'))
560 {
561 /* go down a directory */
562 c = p_wc;
563 }
564 else if (STRNCMP(xpc.xp_pattern, upseg + 1, 3) == 0 && c == K_DOWN)
565 {
566 /* If in a direct ancestor, strip off one ../ to go down */
567 int found = FALSE;
568
569 j = ccline.cmdpos;
570 i = (int)(xpc.xp_pattern - ccline.cmdbuff);
571 while (--j > i)
572 {
573 #ifdef FEAT_MBYTE
574 if (has_mbyte)
575 j -= (*mb_head_off)(ccline.cmdbuff, ccline.cmdbuff + j);
576 #endif
577 if (vim_ispathsep(ccline.cmdbuff[j]))
578 {
579 found = TRUE;
580 break;
581 }
582 }
583 if (found
584 && ccline.cmdbuff[j - 1] == '.'
585 && ccline.cmdbuff[j - 2] == '.'
586 && (vim_ispathsep(ccline.cmdbuff[j - 3]) || j == i + 2))
587 {
588 cmdline_del(j - 2);
589 c = p_wc;
590 }
591 }
592 else if (c == K_UP)
593 {
594 /* go up a directory */
595 int found = FALSE;
596
597 j = ccline.cmdpos - 1;
598 i = (int)(xpc.xp_pattern - ccline.cmdbuff);
599 while (--j > i)
600 {
601 #ifdef FEAT_MBYTE
602 if (has_mbyte)
603 j -= (*mb_head_off)(ccline.cmdbuff, ccline.cmdbuff + j);
604 #endif
605 if (vim_ispathsep(ccline.cmdbuff[j])
606 #ifdef BACKSLASH_IN_FILENAME
607 && vim_strchr(" *?[{`$%#", ccline.cmdbuff[j + 1])
608 == NULL
609 #endif
610 )
611 {
612 if (found)
613 {
614 i = j + 1;
615 break;
616 }
617 else
618 found = TRUE;
619 }
620 }
621
622 if (!found)
623 j = i;
624 else if (STRNCMP(ccline.cmdbuff + j, upseg, 4) == 0)
625 j += 4;
626 else if (STRNCMP(ccline.cmdbuff + j, upseg + 1, 3) == 0
627 && j == i)
628 j += 3;
629 else
630 j = 0;
631 if (j > 0)
632 {
633 /* TODO this is only for DOS/UNIX systems - need to put in
634 * machine-specific stuff here and in upseg init */
635 cmdline_del(j);
636 put_on_cmdline(upseg + 1, 3, FALSE);
637 }
638 else if (ccline.cmdpos > i)
639 cmdline_del(i);
640 c = p_wc;
641 }
642 }
643 #if 0 /* If enabled <Down> on a file takes you _completely_ out of wildmenu */
644 if (p_wmnu
645 && (xpc.xp_context == EXPAND_FILES
646 || xpc.xp_context == EXPAND_MENUNAMES)
647 && (c == K_UP || c == K_DOWN))
648 xpc.xp_context = EXPAND_NOTHING;
649 #endif
650
651 #endif /* FEAT_WILDMENU */
652
653 /* CTRL-\ CTRL-N goes to Normal mode, CTRL-\ CTRL-G goes to Insert
654 * mode when 'insertmode' is set, CTRL-\ e prompts for an expression. */
655 if (c == Ctrl_BSL)
656 {
657 ++no_mapping;
658 ++allow_keys;
659 c = plain_vgetc();
660 --no_mapping;
661 --allow_keys;
662 /* CTRL-\ e doesn't work when obtaining an expression. */
663 if (c != Ctrl_N && c != Ctrl_G
664 && (c != 'e' || ccline.cmdfirstc == '='))
665 {
666 vungetc(c);
667 c = Ctrl_BSL;
668 }
669 #ifdef FEAT_EVAL
670 else if (c == 'e')
671 {
672 char_u *p = NULL;
673
674 /*
675 * Replace the command line with the result of an expression.
676 * Need to save and restore the current command line, to be
677 * able to enter a new one...
678 */
679 if (ccline.cmdpos == ccline.cmdlen)
680 new_cmdpos = 99999; /* keep it at the end */
681 else
682 new_cmdpos = ccline.cmdpos;
683
684 save_cmdline(&save_ccline);
685 c = get_expr_register();
686 restore_cmdline(&save_ccline);
687 if (c == '=')
688 {
689 /* Need to save and restore ccline. And set "textlock"
690 * to avoid nasty things like going to another buffer when
691 * evaluating an expression. */
692 save_cmdline(&save_ccline);
693 ++textlock;
694 p = get_expr_line();
695 --textlock;
696 restore_cmdline(&save_ccline);
697
698 if (p != NULL && realloc_cmdbuff((int)STRLEN(p) + 1) == OK)
699 {
700 ccline.cmdlen = (int)STRLEN(p);
701 STRCPY(ccline.cmdbuff, p);
702 vim_free(p);
703
704 /* Restore the cursor or use the position set with
705 * set_cmdline_pos(). */
706 if (new_cmdpos > ccline.cmdlen)
707 ccline.cmdpos = ccline.cmdlen;
708 else
709 ccline.cmdpos = new_cmdpos;
710
711 KeyTyped = FALSE; /* Don't do p_wc completion. */
712 redrawcmd();
713 goto cmdline_changed;
714 }
715 }
716 beep_flush();
717 c = ESC;
718 }
719 #endif
720 else
721 {
722 if (c == Ctrl_G && p_im && restart_edit == 0)
723 restart_edit = 'a';
724 gotesc = TRUE; /* will free ccline.cmdbuff after putting it
725 in history */
726 goto returncmd; /* back to Normal mode */
727 }
728 }
729
730 #ifdef FEAT_CMDWIN
731 if (c == cedit_key || c == K_CMDWIN)
732 {
733 /*
734 * Open a window to edit the command line (and history).
735 */
736 c = ex_window();
737 some_key_typed = TRUE;
738 }
739 # ifdef FEAT_DIGRAPHS
740 else
741 # endif
742 #endif
743 #ifdef FEAT_DIGRAPHS
744 c = do_digraph(c);
745 #endif
746
747 if (c == '\n' || c == '\r' || c == K_KENTER || (c == ESC
748 && (!KeyTyped || vim_strchr(p_cpo, CPO_ESC) != NULL)))
749 {
750 /* In Ex mode a backslash escapes a newline. */
751 if (exmode_active
752 && c != ESC
753 && ccline.cmdpos == ccline.cmdlen
754 && ccline.cmdpos > 0
755 && ccline.cmdbuff[ccline.cmdpos - 1] == '\\')
756 {
757 if (c == K_KENTER)
758 c = '\n';
759 }
760 else
761 {
762 gotesc = FALSE; /* Might have typed ESC previously, don't
763 truncate the cmdline now. */
764 if (ccheck_abbr(c + ABBR_OFF))
765 goto cmdline_changed;
766 if (!cmd_silent)
767 {
768 windgoto(msg_row, 0);
769 out_flush();
770 }
771 break;
772 }
773 }
774
775 /*
776 * Completion for 'wildchar' or 'wildcharm' key.
777 * - hitting <ESC> twice means: abandon command line.
778 * - wildcard expansion is only done when the 'wildchar' key is really
779 * typed, not when it comes from a macro
780 */
781 if ((c == p_wc && !gotesc && KeyTyped) || c == p_wcm)
782 {
783 if (xpc.xp_numfiles > 0) /* typed p_wc at least twice */
784 {
785 /* if 'wildmode' contains "list" may still need to list */
786 if (xpc.xp_numfiles > 1
787 && !did_wild_list
788 && (wim_flags[wim_index] & WIM_LIST))
789 {
790 (void)showmatches(&xpc, FALSE);
791 redrawcmd();
792 did_wild_list = TRUE;
793 }
794 if (wim_flags[wim_index] & WIM_LONGEST)
795 res = nextwild(&xpc, WILD_LONGEST, WILD_NO_BEEP);
796 else if (wim_flags[wim_index] & WIM_FULL)
797 res = nextwild(&xpc, WILD_NEXT, WILD_NO_BEEP);
798 else
799 res = OK; /* don't insert 'wildchar' now */
800 }
801 else /* typed p_wc first time */
802 {
803 wim_index = 0;
804 j = ccline.cmdpos;
805 /* if 'wildmode' first contains "longest", get longest
806 * common part */
807 if (wim_flags[0] & WIM_LONGEST)
808 res = nextwild(&xpc, WILD_LONGEST, WILD_NO_BEEP);
809 else
810 res = nextwild(&xpc, WILD_EXPAND_KEEP, WILD_NO_BEEP);
811
812 /* if interrupted while completing, behave like it failed */
813 if (got_int)
814 {
815 (void)vpeekc(); /* remove <C-C> from input stream */
816 got_int = FALSE; /* don't abandon the command line */
817 (void)ExpandOne(&xpc, NULL, NULL, 0, WILD_FREE);
818 #ifdef FEAT_WILDMENU
819 xpc.xp_context = EXPAND_NOTHING;
820 #endif
821 goto cmdline_changed;
822 }
823
824 /* when more than one match, and 'wildmode' first contains
825 * "list", or no change and 'wildmode' contains "longest,list",
826 * list all matches */
827 if (res == OK && xpc.xp_numfiles > 1)
828 {
829 /* a "longest" that didn't do anything is skipped (but not
830 * "list:longest") */
831 if (wim_flags[0] == WIM_LONGEST && ccline.cmdpos == j)
832 wim_index = 1;
833 if ((wim_flags[wim_index] & WIM_LIST)
834 #ifdef FEAT_WILDMENU
835 || (p_wmnu && (wim_flags[wim_index] & WIM_FULL) != 0)
836 #endif
837 )
838 {
839 if (!(wim_flags[0] & WIM_LONGEST))
840 {
841 #ifdef FEAT_WILDMENU
842 int p_wmnu_save = p_wmnu;
843 p_wmnu = 0;
844 #endif
845 nextwild(&xpc, WILD_PREV, 0); /* remove match */
846 #ifdef FEAT_WILDMENU
847 p_wmnu = p_wmnu_save;
848 #endif
849 }
850 #ifdef FEAT_WILDMENU
851 (void)showmatches(&xpc, p_wmnu
852 && ((wim_flags[wim_index] & WIM_LIST) == 0));
853 #else
854 (void)showmatches(&xpc, FALSE);
855 #endif
856 redrawcmd();
857 did_wild_list = TRUE;
858 if (wim_flags[wim_index] & WIM_LONGEST)
859 nextwild(&xpc, WILD_LONGEST, WILD_NO_BEEP);
860 else if (wim_flags[wim_index] & WIM_FULL)
861 nextwild(&xpc, WILD_NEXT, WILD_NO_BEEP);
862 }
863 else
864 vim_beep();
865 }
866 #ifdef FEAT_WILDMENU
867 else if (xpc.xp_numfiles == -1)
868 xpc.xp_context = EXPAND_NOTHING;
869 #endif
870 }
871 if (wim_index < 3)
872 ++wim_index;
873 if (c == ESC)
874 gotesc = TRUE;
875 if (res == OK)
876 goto cmdline_changed;
877 }
878
879 gotesc = FALSE;
880
881 /* <S-Tab> goes to last match, in a clumsy way */
882 if (c == K_S_TAB && KeyTyped)
883 {
884 if (nextwild(&xpc, WILD_EXPAND_KEEP, 0) == OK
885 && nextwild(&xpc, WILD_PREV, 0) == OK
886 && nextwild(&xpc, WILD_PREV, 0) == OK)
887 goto cmdline_changed;
888 }
889
890 if (c == NUL || c == K_ZERO) /* NUL is stored as NL */
891 c = NL;
892
893 do_abbr = TRUE; /* default: check for abbreviation */
894
895 /*
896 * Big switch for a typed command line character.
897 */
898 switch (c)
899 {
900 case K_BS:
901 case Ctrl_H:
902 case K_DEL:
903 case K_KDEL:
904 case Ctrl_W:
905 #ifdef FEAT_FKMAP
906 if (cmd_fkmap && c == K_BS)
907 c = K_DEL;
908 #endif
909 if (c == K_KDEL)
910 c = K_DEL;
911
912 /*
913 * delete current character is the same as backspace on next
914 * character, except at end of line
915 */
916 if (c == K_DEL && ccline.cmdpos != ccline.cmdlen)
917 ++ccline.cmdpos;
918 #ifdef FEAT_MBYTE
919 if (has_mbyte && c == K_DEL)
920 ccline.cmdpos += mb_off_next(ccline.cmdbuff,
921 ccline.cmdbuff + ccline.cmdpos);
922 #endif
923 if (ccline.cmdpos > 0)
924 {
925 char_u *p;
926
927 j = ccline.cmdpos;
928 p = ccline.cmdbuff + j;
929 #ifdef FEAT_MBYTE
930 if (has_mbyte)
931 {
932 p = mb_prevptr(ccline.cmdbuff, p);
933 if (c == Ctrl_W)
934 {
935 while (p > ccline.cmdbuff && vim_isspace(*p))
936 p = mb_prevptr(ccline.cmdbuff, p);
937 i = mb_get_class(p);
938 while (p > ccline.cmdbuff && mb_get_class(p) == i)
939 p = mb_prevptr(ccline.cmdbuff, p);
940 if (mb_get_class(p) != i)
941 p += (*mb_ptr2len)(p);
942 }
943 }
944 else
945 #endif
946 if (c == Ctrl_W)
947 {
948 while (p > ccline.cmdbuff && vim_isspace(p[-1]))
949 --p;
950 i = vim_iswordc(p[-1]);
951 while (p > ccline.cmdbuff && !vim_isspace(p[-1])
952 && vim_iswordc(p[-1]) == i)
953 --p;
954 }
955 else
956 --p;
957 ccline.cmdpos = (int)(p - ccline.cmdbuff);
958 ccline.cmdlen -= j - ccline.cmdpos;
959 i = ccline.cmdpos;
960 while (i < ccline.cmdlen)
961 ccline.cmdbuff[i++] = ccline.cmdbuff[j++];
962
963 /* Truncate at the end, required for multi-byte chars. */
964 ccline.cmdbuff[ccline.cmdlen] = NUL;
965 redrawcmd();
966 }
967 else if (ccline.cmdlen == 0 && c != Ctrl_W
968 && ccline.cmdprompt == NULL && indent == 0)
969 {
970 /* In ex and debug mode it doesn't make sense to return. */
971 if (exmode_active
972 #ifdef FEAT_EVAL
973 || ccline.cmdfirstc == '>'
974 #endif
975 )
976 goto cmdline_not_changed;
977
978 vim_free(ccline.cmdbuff); /* no commandline to return */
979 ccline.cmdbuff = NULL;
980 if (!cmd_silent)
981 {
982 #ifdef FEAT_RIGHTLEFT
983 if (cmdmsg_rl)
984 msg_col = Columns;
985 else
986 #endif
987 msg_col = 0;
988 msg_putchar(' '); /* delete ':' */
989 }
990 redraw_cmdline = TRUE;
991 goto returncmd; /* back to cmd mode */
992 }
993 goto cmdline_changed;
994
995 case K_INS:
996 case K_KINS:
997 #ifdef FEAT_FKMAP
998 /* if Farsi mode set, we are in reverse insert mode -
999 Do not change the mode */
1000 if (cmd_fkmap)
1001 beep_flush();
1002 else
1003 #endif
1004 ccline.overstrike = !ccline.overstrike;
1005 #ifdef CURSOR_SHAPE
1006 ui_cursor_shape(); /* may show different cursor shape */
1007 #endif
1008 goto cmdline_not_changed;
1009
1010 case Ctrl_HAT:
1011 if (map_to_exists_mode((char_u *)"", LANGMAP, FALSE))
1012 {
1013 /* ":lmap" mappings exists, toggle use of mappings. */
1014 State ^= LANGMAP;
1015 #ifdef USE_IM_CONTROL
1016 im_set_active(FALSE); /* Disable input method */
1017 #endif
1018 if (b_im_ptr != NULL)
1019 {
1020 if (State & LANGMAP)
1021 *b_im_ptr = B_IMODE_LMAP;
1022 else
1023 *b_im_ptr = B_IMODE_NONE;
1024 }
1025 }
1026 #ifdef USE_IM_CONTROL
1027 else
1028 {
1029 /* There are no ":lmap" mappings, toggle IM. When
1030 * 'imdisable' is set don't try getting the status, it's
1031 * always off. */
1032 if ((p_imdisable && b_im_ptr != NULL)
1033 ? *b_im_ptr == B_IMODE_IM : im_get_status())
1034 {
1035 im_set_active(FALSE); /* Disable input method */
1036 if (b_im_ptr != NULL)
1037 *b_im_ptr = B_IMODE_NONE;
1038 }
1039 else
1040 {
1041 im_set_active(TRUE); /* Enable input method */
1042 if (b_im_ptr != NULL)
1043 *b_im_ptr = B_IMODE_IM;
1044 }
1045 }
1046 #endif
1047 if (b_im_ptr != NULL)
1048 {
1049 if (b_im_ptr == &curbuf->b_p_iminsert)
1050 set_iminsert_global();
1051 else
1052 set_imsearch_global();
1053 }
1054 #ifdef CURSOR_SHAPE
1055 ui_cursor_shape(); /* may show different cursor shape */
1056 #endif
1057 #if defined(FEAT_WINDOWS) && defined(FEAT_KEYMAP)
1058 /* Show/unshow value of 'keymap' in status lines later. */
1059 status_redraw_curbuf();
1060 #endif
1061 goto cmdline_not_changed;
1062
1063 /* case '@': only in very old vi */
1064 case Ctrl_U:
1065 /* delete all characters left of the cursor */
1066 j = ccline.cmdpos;
1067 ccline.cmdlen -= j;
1068 i = ccline.cmdpos = 0;
1069 while (i < ccline.cmdlen)
1070 ccline.cmdbuff[i++] = ccline.cmdbuff[j++];
1071 /* Truncate at the end, required for multi-byte chars. */
1072 ccline.cmdbuff[ccline.cmdlen] = NUL;
1073 redrawcmd();
1074 goto cmdline_changed;
1075
1076 #ifdef FEAT_CLIPBOARD
1077 case Ctrl_Y:
1078 /* Copy the modeless selection, if there is one. */
1079 if (clip_star.state != SELECT_CLEARED)
1080 {
1081 if (clip_star.state == SELECT_DONE)
1082 clip_copy_modeless_selection(TRUE);
1083 goto cmdline_not_changed;
1084 }
1085 break;
1086 #endif
1087
1088 case ESC: /* get here if p_wc != ESC or when ESC typed twice */
1089 case Ctrl_C:
1090 /* In exmode it doesn't make sense to return. Except when
1091 * ":normal" runs out of characters. */
1092 if (exmode_active
1093 #ifdef FEAT_EX_EXTRA
1094 && (ex_normal_busy == 0 || typebuf.tb_len > 0)
1095 #endif
1096 )
1097 goto cmdline_not_changed;
1098
1099 gotesc = TRUE; /* will free ccline.cmdbuff after
1100 putting it in history */
1101 goto returncmd; /* back to cmd mode */
1102
1103 case Ctrl_R: /* insert register */
1104 #ifdef USE_ON_FLY_SCROLL
1105 dont_scroll = TRUE; /* disallow scrolling here */
1106 #endif
1107 putcmdline('"', TRUE);
1108 ++no_mapping;
1109 i = c = plain_vgetc(); /* CTRL-R <char> */
1110 if (i == Ctrl_O)
1111 i = Ctrl_R; /* CTRL-R CTRL-O == CTRL-R CTRL-R */
1112 if (i == Ctrl_R)
1113 c = plain_vgetc(); /* CTRL-R CTRL-R <char> */
1114 --no_mapping;
1115 #ifdef FEAT_EVAL
1116 /*
1117 * Insert the result of an expression.
1118 * Need to save the current command line, to be able to enter
1119 * a new one...
1120 */
1121 new_cmdpos = -1;
1122 if (c == '=')
1123 {
1124 if (ccline.cmdfirstc == '=')/* can't do this recursively */
1125 {
1126 beep_flush();
1127 c = ESC;
1128 }
1129 else
1130 {
1131 save_cmdline(&save_ccline);
1132 c = get_expr_register();
1133 restore_cmdline(&save_ccline);
1134 }
1135 }
1136 #endif
1137 if (c != ESC) /* use ESC to cancel inserting register */
1138 {
1139 cmdline_paste(c, i == Ctrl_R, FALSE);
1140
1141 #ifdef FEAT_EVAL
1142 /* When there was a serious error abort getting the
1143 * command line. */
1144 if (aborting())
1145 {
1146 gotesc = TRUE; /* will free ccline.cmdbuff after
1147 putting it in history */
1148 goto returncmd; /* back to cmd mode */
1149 }
1150 #endif
1151 KeyTyped = FALSE; /* Don't do p_wc completion. */
1152 #ifdef FEAT_EVAL
1153 if (new_cmdpos >= 0)
1154 {
1155 /* set_cmdline_pos() was used */
1156 if (new_cmdpos > ccline.cmdlen)
1157 ccline.cmdpos = ccline.cmdlen;
1158 else
1159 ccline.cmdpos = new_cmdpos;
1160 }
1161 #endif
1162 }
1163 redrawcmd();
1164 goto cmdline_changed;
1165
1166 case Ctrl_D:
1167 if (showmatches(&xpc, FALSE) == EXPAND_NOTHING)
1168 break; /* Use ^D as normal char instead */
1169
1170 redrawcmd();
1171 continue; /* don't do incremental search now */
1172
1173 case K_RIGHT:
1174 case K_S_RIGHT:
1175 case K_C_RIGHT:
1176 do
1177 {
1178 if (ccline.cmdpos >= ccline.cmdlen)
1179 break;
1180 i = cmdline_charsize(ccline.cmdpos);
1181 if (KeyTyped && ccline.cmdspos + i >= Columns * Rows)
1182 break;
1183 ccline.cmdspos += i;
1184 #ifdef FEAT_MBYTE
1185 if (has_mbyte)
1186 ccline.cmdpos += (*mb_ptr2len)(ccline.cmdbuff
1187 + ccline.cmdpos);
1188 else
1189 #endif
1190 ++ccline.cmdpos;
1191 }
1192 while ((c == K_S_RIGHT || c == K_C_RIGHT
1193 || (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL)))
1194 && ccline.cmdbuff[ccline.cmdpos] != ' ');
1195 #ifdef FEAT_MBYTE
1196 if (has_mbyte)
1197 set_cmdspos_cursor();
1198 #endif
1199 goto cmdline_not_changed;
1200
1201 case K_LEFT:
1202 case K_S_LEFT:
1203 case K_C_LEFT:
1204 if (ccline.cmdpos == 0)
1205 goto cmdline_not_changed;
1206 do
1207 {
1208 --ccline.cmdpos;
1209 #ifdef FEAT_MBYTE
1210 if (has_mbyte) /* move to first byte of char */
1211 ccline.cmdpos -= (*mb_head_off)(ccline.cmdbuff,
1212 ccline.cmdbuff + ccline.cmdpos);
1213 #endif
1214 ccline.cmdspos -= cmdline_charsize(ccline.cmdpos);
1215 }
1216 while (ccline.cmdpos > 0
1217 && (c == K_S_LEFT || c == K_C_LEFT
1218 || (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL)))
1219 && ccline.cmdbuff[ccline.cmdpos - 1] != ' ');
1220 #ifdef FEAT_MBYTE
1221 if (has_mbyte)
1222 set_cmdspos_cursor();
1223 #endif
1224 goto cmdline_not_changed;
1225
1226 case K_IGNORE:
1227 /* Ignore mouse event or ex_window() result. */
1228 goto cmdline_not_changed;
1229
1230 #ifdef FEAT_GUI_W32
1231 /* On Win32 ignore <M-F4>, we get it when closing the window was
1232 * cancelled. */
1233 case K_F4:
1234 if (mod_mask == MOD_MASK_ALT)
1235 {
1236 redrawcmd(); /* somehow the cmdline is cleared */
1237 goto cmdline_not_changed;
1238 }
1239 break;
1240 #endif
1241
1242 #ifdef FEAT_MOUSE
1243 case K_MIDDLEDRAG:
1244 case K_MIDDLERELEASE:
1245 goto cmdline_not_changed; /* Ignore mouse */
1246
1247 case K_MIDDLEMOUSE:
1248 # ifdef FEAT_GUI
1249 /* When GUI is active, also paste when 'mouse' is empty */
1250 if (!gui.in_use)
1251 # endif
1252 if (!mouse_has(MOUSE_COMMAND))
1253 goto cmdline_not_changed; /* Ignore mouse */
1254 # ifdef FEAT_CLIPBOARD
1255 if (clip_star.available)
1256 cmdline_paste('*', TRUE, TRUE);
1257 else
1258 # endif
1259 cmdline_paste(0, TRUE, TRUE);
1260 redrawcmd();
1261 goto cmdline_changed;
1262
1263 # ifdef FEAT_DND
1264 case K_DROP:
1265 cmdline_paste('~', TRUE, FALSE);
1266 redrawcmd();
1267 goto cmdline_changed;
1268 # endif
1269
1270 case K_LEFTDRAG:
1271 case K_LEFTRELEASE:
1272 case K_RIGHTDRAG:
1273 case K_RIGHTRELEASE:
1274 /* Ignore drag and release events when the button-down wasn't
1275 * seen before. */
1276 if (ignore_drag_release)
1277 goto cmdline_not_changed;
1278 /* FALLTHROUGH */
1279 case K_LEFTMOUSE:
1280 case K_RIGHTMOUSE:
1281 if (c == K_LEFTRELEASE || c == K_RIGHTRELEASE)
1282 ignore_drag_release = TRUE;
1283 else
1284 ignore_drag_release = FALSE;
1285 # ifdef FEAT_GUI
1286 /* When GUI is active, also move when 'mouse' is empty */
1287 if (!gui.in_use)
1288 # endif
1289 if (!mouse_has(MOUSE_COMMAND))
1290 goto cmdline_not_changed; /* Ignore mouse */
1291 # ifdef FEAT_CLIPBOARD
1292 if (mouse_row < cmdline_row && clip_star.available)
1293 {
1294 int button, is_click, is_drag;
1295
1296 /*
1297 * Handle modeless selection.
1298 */
1299 button = get_mouse_button(KEY2TERMCAP1(c),
1300 &is_click, &is_drag);
1301 if (mouse_model_popup() && button == MOUSE_LEFT
1302 && (mod_mask & MOD_MASK_SHIFT))
1303 {
1304 /* Translate shift-left to right button. */
1305 button = MOUSE_RIGHT;
1306 mod_mask &= ~MOD_MASK_SHIFT;
1307 }
1308 clip_modeless(button, is_click, is_drag);
1309 goto cmdline_not_changed;
1310 }
1311 # endif
1312
1313 set_cmdspos();
1314 for (ccline.cmdpos = 0; ccline.cmdpos < ccline.cmdlen;
1315 ++ccline.cmdpos)
1316 {
1317 i = cmdline_charsize(ccline.cmdpos);
1318 if (mouse_row <= cmdline_row + ccline.cmdspos / Columns
1319 && mouse_col < ccline.cmdspos % Columns + i)
1320 break;
1321 # ifdef FEAT_MBYTE
1322 if (has_mbyte)
1323 {
1324 /* Count ">" for double-wide char that doesn't fit. */
1325 correct_cmdspos(ccline.cmdpos, i);
1326 ccline.cmdpos += (*mb_ptr2len)(ccline.cmdbuff
1327 + ccline.cmdpos) - 1;
1328 }
1329 # endif
1330 ccline.cmdspos += i;
1331 }
1332 goto cmdline_not_changed;
1333
1334 /* Mouse scroll wheel: ignored here */
1335 case K_MOUSEDOWN:
1336 case K_MOUSEUP:
1337 /* Alternate buttons ignored here */
1338 case K_X1MOUSE:
1339 case K_X1DRAG:
1340 case K_X1RELEASE:
1341 case K_X2MOUSE:
1342 case K_X2DRAG:
1343 case K_X2RELEASE:
1344 goto cmdline_not_changed;
1345
1346 #endif /* FEAT_MOUSE */
1347
1348 #ifdef FEAT_GUI
1349 case K_LEFTMOUSE_NM: /* mousefocus click, ignored */
1350 case K_LEFTRELEASE_NM:
1351 goto cmdline_not_changed;
1352
1353 case K_VER_SCROLLBAR:
1354 if (msg_scrolled == 0)
1355 {
1356 gui_do_scroll();
1357 redrawcmd();
1358 }
1359 goto cmdline_not_changed;
1360
1361 case K_HOR_SCROLLBAR:
1362 if (msg_scrolled == 0)
1363 {
1364 gui_do_horiz_scroll();
1365 redrawcmd();
1366 }
1367 goto cmdline_not_changed;
1368 #endif
1369 #ifdef FEAT_GUI_TABLINE
1370 case K_TABLINE:
1371 case K_TABMENU:
1372 /* Don't want to change any tabs here. Make sure the same tab
1373 * is still selected. */
1374 if (gui_use_tabline())
1375 gui_mch_set_curtab(tabpage_index(curtab));
1376 goto cmdline_not_changed;
1377 #endif
1378
1379 case K_SELECT: /* end of Select mode mapping - ignore */
1380 goto cmdline_not_changed;
1381
1382 case Ctrl_B: /* begin of command line */
1383 case K_HOME:
1384 case K_KHOME:
1385 case K_S_HOME:
1386 case K_C_HOME:
1387 ccline.cmdpos = 0;
1388 set_cmdspos();
1389 goto cmdline_not_changed;
1390
1391 case Ctrl_E: /* end of command line */
1392 case K_END:
1393 case K_KEND:
1394 case K_S_END:
1395 case K_C_END:
1396 ccline.cmdpos = ccline.cmdlen;
1397 set_cmdspos_cursor();
1398 goto cmdline_not_changed;
1399
1400 case Ctrl_A: /* all matches */
1401 if (nextwild(&xpc, WILD_ALL, 0) == FAIL)
1402 break;
1403 goto cmdline_changed;
1404
1405 case Ctrl_L:
1406 #ifdef FEAT_SEARCH_EXTRA
1407 if (p_is && !cmd_silent && (firstc == '/' || firstc == '?'))
1408 {
1409 /* Add a character from under the cursor for 'incsearch' */
1410 if (did_incsearch
1411 && !equalpos(curwin->w_cursor, old_cursor))
1412 {
1413 c = gchar_cursor();
1414 if (c != NUL)
1415 {
1416 if (c == firstc || vim_strchr((char_u *)(
1417 p_magic ? "\\^$.*[" : "\\^$"), c)
1418 != NULL)
1419 {
1420 /* put a backslash before special characters */
1421 stuffcharReadbuff(c);
1422 c = '\\';
1423 }
1424 break;
1425 }
1426 }
1427 goto cmdline_not_changed;
1428 }
1429 #endif
1430
1431 /* completion: longest common part */
1432 if (nextwild(&xpc, WILD_LONGEST, 0) == FAIL)
1433 break;
1434 goto cmdline_changed;
1435
1436 case Ctrl_N: /* next match */
1437 case Ctrl_P: /* previous match */
1438 if (xpc.xp_numfiles > 0)
1439 {
1440 if (nextwild(&xpc, (c == Ctrl_P) ? WILD_PREV : WILD_NEXT, 0)
1441 == FAIL)
1442 break;
1443 goto cmdline_changed;
1444 }
1445
1446 #ifdef FEAT_CMDHIST
1447 case K_UP:
1448 case K_DOWN:
1449 case K_S_UP:
1450 case K_S_DOWN:
1451 case K_PAGEUP:
1452 case K_KPAGEUP:
1453 case K_PAGEDOWN:
1454 case K_KPAGEDOWN:
1455 if (hislen == 0 || firstc == NUL) /* no history */
1456 goto cmdline_not_changed;
1457
1458 i = hiscnt;
1459
1460 /* save current command string so it can be restored later */
1461 if (lookfor == NULL)
1462 {
1463 if ((lookfor = vim_strsave(ccline.cmdbuff)) == NULL)
1464 goto cmdline_not_changed;
1465 lookfor[ccline.cmdpos] = NUL;
1466 }
1467
1468 j = (int)STRLEN(lookfor);
1469 for (;;)
1470 {
1471 /* one step backwards */
1472 if (c == K_UP|| c == K_S_UP || c == Ctrl_P
1473 || c == K_PAGEUP || c == K_KPAGEUP)
1474 {
1475 if (hiscnt == hislen) /* first time */
1476 hiscnt = hisidx[histype];
1477 else if (hiscnt == 0 && hisidx[histype] != hislen - 1)
1478 hiscnt = hislen - 1;
1479 else if (hiscnt != hisidx[histype] + 1)
1480 --hiscnt;
1481 else /* at top of list */
1482 {
1483 hiscnt = i;
1484 break;
1485 }
1486 }
1487 else /* one step forwards */
1488 {
1489 /* on last entry, clear the line */
1490 if (hiscnt == hisidx[histype])
1491 {
1492 hiscnt = hislen;
1493 break;
1494 }
1495
1496 /* not on a history line, nothing to do */
1497 if (hiscnt == hislen)
1498 break;
1499 if (hiscnt == hislen - 1) /* wrap around */
1500 hiscnt = 0;
1501 else
1502 ++hiscnt;
1503 }
1504 if (hiscnt < 0 || history[histype][hiscnt].hisstr == NULL)
1505 {
1506 hiscnt = i;
1507 break;
1508 }
1509 if ((c != K_UP && c != K_DOWN)
1510 || hiscnt == i
1511 || STRNCMP(history[histype][hiscnt].hisstr,
1512 lookfor, (size_t)j) == 0)
1513 break;
1514 }
1515
1516 if (hiscnt != i) /* jumped to other entry */
1517 {
1518 char_u *p;
1519 int len;
1520 int old_firstc;
1521
1522 vim_free(ccline.cmdbuff);
1523 xpc.xp_context = EXPAND_NOTHING;
1524 if (hiscnt == hislen)
1525 p = lookfor; /* back to the old one */
1526 else
1527 p = history[histype][hiscnt].hisstr;
1528
1529 if (histype == HIST_SEARCH
1530 && p != lookfor
1531 && (old_firstc = p[STRLEN(p) + 1]) != firstc)
1532 {
1533 /* Correct for the separator character used when
1534 * adding the history entry vs the one used now.
1535 * First loop: count length.
1536 * Second loop: copy the characters. */
1537 for (i = 0; i <= 1; ++i)
1538 {
1539 len = 0;
1540 for (j = 0; p[j] != NUL; ++j)
1541 {
1542 /* Replace old sep with new sep, unless it is
1543 * escaped. */
1544 if (p[j] == old_firstc
1545 && (j == 0 || p[j - 1] != '\\'))
1546 {
1547 if (i > 0)
1548 ccline.cmdbuff[len] = firstc;
1549 }
1550 else
1551 {
1552 /* Escape new sep, unless it is already
1553 * escaped. */
1554 if (p[j] == firstc
1555 && (j == 0 || p[j - 1] != '\\'))
1556 {
1557 if (i > 0)
1558 ccline.cmdbuff[len] = '\\';
1559 ++len;
1560 }
1561 if (i > 0)
1562 ccline.cmdbuff[len] = p[j];
1563 }
1564 ++len;
1565 }
1566 if (i == 0)
1567 {
1568 alloc_cmdbuff(len);
1569 if (ccline.cmdbuff == NULL)
1570 goto returncmd;
1571 }
1572 }
1573 ccline.cmdbuff[len] = NUL;
1574 }
1575 else
1576 {
1577 alloc_cmdbuff((int)STRLEN(p));
1578 if (ccline.cmdbuff == NULL)
1579 goto returncmd;
1580 STRCPY(ccline.cmdbuff, p);
1581 }
1582
1583 ccline.cmdpos = ccline.cmdlen = (int)STRLEN(ccline.cmdbuff);
1584 redrawcmd();
1585 goto cmdline_changed;
1586 }
1587 beep_flush();
1588 goto cmdline_not_changed;
1589 #endif
1590
1591 case Ctrl_V:
1592 case Ctrl_Q:
1593 #ifdef FEAT_MOUSE
1594 ignore_drag_release = TRUE;
1595 #endif
1596 putcmdline('^', TRUE);
1597 c = get_literal(); /* get next (two) character(s) */
1598 do_abbr = FALSE; /* don't do abbreviation now */
1599 #ifdef FEAT_MBYTE
1600 /* may need to remove ^ when composing char was typed */
1601 if (enc_utf8 && utf_iscomposing(c) && !cmd_silent)
1602 {
1603 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
1604 msg_putchar(' ');
1605 cursorcmd();
1606 }
1607 #endif
1608 break;
1609
1610 #ifdef FEAT_DIGRAPHS
1611 case Ctrl_K:
1612 #ifdef FEAT_MOUSE
1613 ignore_drag_release = TRUE;
1614 #endif
1615 putcmdline('?', TRUE);
1616 #ifdef USE_ON_FLY_SCROLL
1617 dont_scroll = TRUE; /* disallow scrolling here */
1618 #endif
1619 c = get_digraph(TRUE);
1620 if (c != NUL)
1621 break;
1622
1623 redrawcmd();
1624 goto cmdline_not_changed;
1625 #endif /* FEAT_DIGRAPHS */
1626
1627 #ifdef FEAT_RIGHTLEFT
1628 case Ctrl__: /* CTRL-_: switch language mode */
1629 if (!p_ari)
1630 break;
1631 #ifdef FEAT_FKMAP
1632 if (p_altkeymap)
1633 {
1634 cmd_fkmap = !cmd_fkmap;
1635 if (cmd_fkmap) /* in Farsi always in Insert mode */
1636 ccline.overstrike = FALSE;
1637 }
1638 else /* Hebrew is default */
1639 #endif
1640 cmd_hkmap = !cmd_hkmap;
1641 goto cmdline_not_changed;
1642 #endif
1643
1644 default:
1645 #ifdef UNIX
1646 if (c == intr_char)
1647 {
1648 gotesc = TRUE; /* will free ccline.cmdbuff after
1649 putting it in history */
1650 goto returncmd; /* back to Normal mode */
1651 }
1652 #endif
1653 /*
1654 * Normal character with no special meaning. Just set mod_mask
1655 * to 0x0 so that typing Shift-Space in the GUI doesn't enter
1656 * the string <S-Space>. This should only happen after ^V.
1657 */
1658 if (!IS_SPECIAL(c))
1659 mod_mask = 0x0;
1660 break;
1661 }
1662 /*
1663 * End of switch on command line character.
1664 * We come here if we have a normal character.
1665 */
1666
1667 if (do_abbr && (IS_SPECIAL(c) || !vim_iswordc(c)) && ccheck_abbr(
1668 #ifdef FEAT_MBYTE
1669 /* Add ABBR_OFF for characters above 0x100, this is
1670 * what check_abbr() expects. */
1671 (has_mbyte && c >= 0x100) ? (c + ABBR_OFF) :
1672 #endif
1673 c))
1674 goto cmdline_changed;
1675
1676 /*
1677 * put the character in the command line
1678 */
1679 if (IS_SPECIAL(c) || mod_mask != 0)
1680 put_on_cmdline(get_special_key_name(c, mod_mask), -1, TRUE);
1681 else
1682 {
1683 #ifdef FEAT_MBYTE
1684 if (has_mbyte)
1685 {
1686 j = (*mb_char2bytes)(c, IObuff);
1687 IObuff[j] = NUL; /* exclude composing chars */
1688 put_on_cmdline(IObuff, j, TRUE);
1689 }
1690 else
1691 #endif
1692 {
1693 IObuff[0] = c;
1694 put_on_cmdline(IObuff, 1, TRUE);
1695 }
1696 }
1697 goto cmdline_changed;
1698
1699 /*
1700 * This part implements incremental searches for "/" and "?"
1701 * Jump to cmdline_not_changed when a character has been read but the command
1702 * line did not change. Then we only search and redraw if something changed in
1703 * the past.
1704 * Jump to cmdline_changed when the command line did change.
1705 * (Sorry for the goto's, I know it is ugly).
1706 */
1707 cmdline_not_changed:
1708 #ifdef FEAT_SEARCH_EXTRA
1709 if (!incsearch_postponed)
1710 continue;
1711 #endif
1712
1713 cmdline_changed:
1714 #ifdef FEAT_SEARCH_EXTRA
1715 /*
1716 * 'incsearch' highlighting.
1717 */
1718 if (p_is && !cmd_silent && (firstc == '/' || firstc == '?'))
1719 {
1720 pos_T end_pos;
1721 #ifdef FEAT_RELTIME
1722 proftime_T tm;
1723 #endif
1724
1725 /* if there is a character waiting, search and redraw later */
1726 if (char_avail())
1727 {
1728 incsearch_postponed = TRUE;
1729 continue;
1730 }
1731 incsearch_postponed = FALSE;
1732 curwin->w_cursor = old_cursor; /* start at old position */
1733
1734 /* If there is no command line, don't do anything */
1735 if (ccline.cmdlen == 0)
1736 i = 0;
1737 else
1738 {
1739 cursor_off(); /* so the user knows we're busy */
1740 out_flush();
1741 ++emsg_off; /* So it doesn't beep if bad expr */
1742 #ifdef FEAT_RELTIME
1743 /* Set the time limit to half a second. */
1744 profile_setlimit(500L, &tm);
1745 #endif
1746 i = do_search(NULL, firstc, ccline.cmdbuff, count,
1747 SEARCH_KEEP + SEARCH_OPT + SEARCH_NOOF + SEARCH_PEEK,
1748 #ifdef FEAT_RELTIME
1749 &tm
1750 #else
1751 NULL
1752 #endif
1753 );
1754 --emsg_off;
1755 /* if interrupted while searching, behave like it failed */
1756 if (got_int)
1757 {
1758 (void)vpeekc(); /* remove <C-C> from input stream */
1759 got_int = FALSE; /* don't abandon the command line */
1760 i = 0;
1761 }
1762 else if (char_avail())
1763 /* cancelled searching because a char was typed */
1764 incsearch_postponed = TRUE;
1765 }
1766 if (i != 0)
1767 highlight_match = TRUE; /* highlight position */
1768 else
1769 highlight_match = FALSE; /* remove highlight */
1770
1771 /* first restore the old curwin values, so the screen is
1772 * positioned in the same way as the actual search command */
1773 curwin->w_leftcol = old_leftcol;
1774 curwin->w_topline = old_topline;
1775 # ifdef FEAT_DIFF
1776 curwin->w_topfill = old_topfill;
1777 # endif
1778 curwin->w_botline = old_botline;
1779 changed_cline_bef_curs();
1780 update_topline();
1781
1782 if (i != 0)
1783 {
1784 pos_T save_pos = curwin->w_cursor;
1785
1786 /*
1787 * First move cursor to end of match, then to the start. This
1788 * moves the whole match onto the screen when 'nowrap' is set.
1789 */
1790 curwin->w_cursor.lnum += search_match_lines;
1791 curwin->w_cursor.col = search_match_endcol;
1792 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
1793 {
1794 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
1795 coladvance((colnr_T)MAXCOL);
1796 }
1797 validate_cursor();
1798 end_pos = curwin->w_cursor;
1799 curwin->w_cursor = save_pos;
1800 }
1801 else
1802 end_pos = curwin->w_cursor; /* shutup gcc 4 */
1803
1804 validate_cursor();
1805 # ifdef FEAT_WINDOWS
1806 /* May redraw the status line to show the cursor position. */
1807 if (p_ru && curwin->w_status_height > 0)
1808 curwin->w_redr_status = TRUE;
1809 # endif
1810
1811 save_cmdline(&save_ccline);
1812 update_screen(SOME_VALID);
1813 restore_cmdline(&save_ccline);
1814
1815 /* Leave it at the end to make CTRL-R CTRL-W work. */
1816 if (i != 0)
1817 curwin->w_cursor = end_pos;
1818
1819 msg_starthere();
1820 redrawcmdline();
1821 did_incsearch = TRUE;
1822 }
1823 #else /* FEAT_SEARCH_EXTRA */
1824 ;
1825 #endif
1826
1827 #ifdef FEAT_RIGHTLEFT
1828 if (cmdmsg_rl
1829 # ifdef FEAT_ARABIC
1830 || (p_arshape && !p_tbidi && enc_utf8)
1831 # endif
1832 )
1833 /* Always redraw the whole command line to fix shaping and
1834 * right-left typing. Not efficient, but it works. */
1835 redrawcmd();
1836 #endif
1837 }
1838
1839 returncmd:
1840
1841 #ifdef FEAT_RIGHTLEFT
1842 cmdmsg_rl = FALSE;
1843 #endif
1844
1845 #ifdef FEAT_FKMAP
1846 cmd_fkmap = 0;
1847 #endif
1848
1849 ExpandCleanup(&xpc);
1850 ccline.xpc = NULL;
1851
1852 #ifdef FEAT_SEARCH_EXTRA
1853 if (did_incsearch)
1854 {
1855 curwin->w_cursor = old_cursor;
1856 curwin->w_curswant = old_curswant;
1857 curwin->w_leftcol = old_leftcol;
1858 curwin->w_topline = old_topline;
1859 # ifdef FEAT_DIFF
1860 curwin->w_topfill = old_topfill;
1861 # endif
1862 curwin->w_botline = old_botline;
1863 highlight_match = FALSE;
1864 validate_cursor(); /* needed for TAB */
1865 redraw_later(SOME_VALID);
1866 }
1867 #endif
1868
1869 if (ccline.cmdbuff != NULL)
1870 {
1871 /*
1872 * Put line in history buffer (":" and "=" only when it was typed).
1873 */
1874 #ifdef FEAT_CMDHIST
1875 if (ccline.cmdlen && firstc != NUL
1876 && (some_key_typed || histype == HIST_SEARCH))
1877 {
1878 add_to_history(histype, ccline.cmdbuff, TRUE,
1879 histype == HIST_SEARCH ? firstc : NUL);
1880 if (firstc == ':')
1881 {
1882 vim_free(new_last_cmdline);
1883 new_last_cmdline = vim_strsave(ccline.cmdbuff);
1884 }
1885 }
1886 #endif
1887
1888 if (gotesc) /* abandon command line */
1889 {
1890 vim_free(ccline.cmdbuff);
1891 ccline.cmdbuff = NULL;
1892 if (msg_scrolled == 0)
1893 compute_cmdrow();
1894 MSG("");
1895 redraw_cmdline = TRUE;
1896 }
1897 }
1898
1899 /*
1900 * If the screen was shifted up, redraw the whole screen (later).
1901 * If the line is too long, clear it, so ruler and shown command do
1902 * not get printed in the middle of it.
1903 */
1904 msg_check();
1905 msg_scroll = save_msg_scroll;
1906 redir_off = FALSE;
1907
1908 /* When the command line was typed, no need for a wait-return prompt. */
1909 if (some_key_typed)
1910 need_wait_return = FALSE;
1911
1912 State = save_State;
1913 #ifdef USE_IM_CONTROL
1914 if (b_im_ptr != NULL && *b_im_ptr != B_IMODE_LMAP)
1915 im_save_status(b_im_ptr);
1916 im_set_active(FALSE);
1917 #endif
1918 #ifdef FEAT_MOUSE
1919 setmouse();
1920 #endif
1921 #ifdef CURSOR_SHAPE
1922 ui_cursor_shape(); /* may show different cursor shape */
1923 #endif
1924
1925 {
1926 char_u *p = ccline.cmdbuff;
1927
1928 /* Make ccline empty, getcmdline() may try to use it. */
1929 ccline.cmdbuff = NULL;
1930 return p;
1931 }
1932 }
1933
1934 #if (defined(FEAT_CRYPT) || defined(FEAT_EVAL)) || defined(PROTO)
1935 /*
1936 * Get a command line with a prompt.
1937 * This is prepared to be called recursively from getcmdline() (e.g. by
1938 * f_input() when evaluating an expression from CTRL-R =).
1939 * Returns the command line in allocated memory, or NULL.
1940 */
1941 char_u *
1942 getcmdline_prompt(firstc, prompt, attr, xp_context, xp_arg)
1943 int firstc;
1944 char_u *prompt; /* command line prompt */
1945 int attr; /* attributes for prompt */
1946 int xp_context; /* type of expansion */
1947 char_u *xp_arg; /* user-defined expansion argument */
1948 {
1949 char_u *s;
1950 struct cmdline_info save_ccline;
1951 int msg_col_save = msg_col;
1952
1953 save_cmdline(&save_ccline);
1954 ccline.cmdprompt = prompt;
1955 ccline.cmdattr = attr;
1956 # ifdef FEAT_EVAL
1957 ccline.xp_context = xp_context;
1958 ccline.xp_arg = xp_arg;
1959 ccline.input_fn = (firstc == '@');
1960 # endif
1961 s = getcmdline(firstc, 1L, 0);
1962 restore_cmdline(&save_ccline);
1963 /* Restore msg_col, the prompt from input() may have changed it. */
1964 msg_col = msg_col_save;
1965
1966 return s;
1967 }
1968 #endif
1969
1970 /*
1971 * Return TRUE when the text must not be changed and we can't switch to
1972 * another window or buffer. Used when editing the command line, evaluating
1973 * 'balloonexpr', etc.
1974 */
1975 int
1976 text_locked()
1977 {
1978 #ifdef FEAT_CMDWIN
1979 if (cmdwin_type != 0)
1980 return TRUE;
1981 #endif
1982 return textlock != 0;
1983 }
1984
1985 /*
1986 * Give an error message for a command that isn't allowed while the cmdline
1987 * window is open or editing the cmdline in another way.
1988 */
1989 void
1990 text_locked_msg()
1991 {
1992 #ifdef FEAT_CMDWIN
1993 if (cmdwin_type != 0)
1994 EMSG(_(e_cmdwin));
1995 else
1996 #endif
1997 EMSG(_(e_secure));
1998 }
1999
2000 #if defined(FEAT_AUTOCMD) || defined(PROTO)
2001 /*
2002 * Check if "curbuf_lock" or "allbuf_lock" is set and return TRUE when it is
2003 * and give an error message.
2004 */
2005 int
2006 curbuf_locked()
2007 {
2008 if (curbuf_lock > 0)
2009 {
2010 EMSG(_("E788: Not allowed to edit another buffer now"));
2011 return TRUE;
2012 }
2013 return allbuf_locked();
2014 }
2015
2016 /*
2017 * Check if "allbuf_lock" is set and return TRUE when it is and give an error
2018 * message.
2019 */
2020 int
2021 allbuf_locked()
2022 {
2023 if (allbuf_lock > 0)
2024 {
2025 EMSG(_("E811: Not allowed to change buffer information now"));
2026 return TRUE;
2027 }
2028 return FALSE;
2029 }
2030 #endif
2031
2032 static int
2033 cmdline_charsize(idx)
2034 int idx;
2035 {
2036 #if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
2037 if (cmdline_star > 0) /* showing '*', always 1 position */
2038 return 1;
2039 #endif
2040 return ptr2cells(ccline.cmdbuff + idx);
2041 }
2042
2043 /*
2044 * Compute the offset of the cursor on the command line for the prompt and
2045 * indent.
2046 */
2047 static void
2048 set_cmdspos()
2049 {
2050 if (ccline.cmdfirstc != NUL)
2051 ccline.cmdspos = 1 + ccline.cmdindent;
2052 else
2053 ccline.cmdspos = 0 + ccline.cmdindent;
2054 }
2055
2056 /*
2057 * Compute the screen position for the cursor on the command line.
2058 */
2059 static void
2060 set_cmdspos_cursor()
2061 {
2062 int i, m, c;
2063
2064 set_cmdspos();
2065 if (KeyTyped)
2066 {
2067 m = Columns * Rows;
2068 if (m < 0) /* overflow, Columns or Rows at weird value */
2069 m = MAXCOL;
2070 }
2071 else
2072 m = MAXCOL;
2073 for (i = 0; i < ccline.cmdlen && i < ccline.cmdpos; ++i)
2074 {
2075 c = cmdline_charsize(i);
2076 #ifdef FEAT_MBYTE
2077 /* Count ">" for double-wide multi-byte char that doesn't fit. */
2078 if (has_mbyte)
2079 correct_cmdspos(i, c);
2080 #endif
2081 /* If the cmdline doesn't fit, show cursor on last visible char.
2082 * Don't move the cursor itself, so we can still append. */
2083 if ((ccline.cmdspos += c) >= m)
2084 {
2085 ccline.cmdspos -= c;
2086 break;
2087 }
2088 #ifdef FEAT_MBYTE
2089 if (has_mbyte)
2090 i += (*mb_ptr2len)(ccline.cmdbuff + i) - 1;
2091 #endif
2092 }
2093 }
2094
2095 #ifdef FEAT_MBYTE
2096 /*
2097 * Check if the character at "idx", which is "cells" wide, is a multi-byte
2098 * character that doesn't fit, so that a ">" must be displayed.
2099 */
2100 static void
2101 correct_cmdspos(idx, cells)
2102 int idx;
2103 int cells;
2104 {
2105 if ((*mb_ptr2len)(ccline.cmdbuff + idx) > 1
2106 && (*mb_ptr2cells)(ccline.cmdbuff + idx) > 1
2107 && ccline.cmdspos % Columns + cells > Columns)
2108 ccline.cmdspos++;
2109 }
2110 #endif
2111
2112 /*
2113 * Get an Ex command line for the ":" command.
2114 */
2115 char_u *
2116 getexline(c, cookie, indent)
2117 int c; /* normally ':', NUL for ":append" */
2118 void *cookie UNUSED;
2119 int indent; /* indent for inside conditionals */
2120 {
2121 /* When executing a register, remove ':' that's in front of each line. */
2122 if (exec_from_reg && vpeekc() == ':')
2123 (void)vgetc();
2124 return getcmdline(c, 1L, indent);
2125 }
2126
2127 /*
2128 * Get an Ex command line for Ex mode.
2129 * In Ex mode we only use the OS supplied line editing features and no
2130 * mappings or abbreviations.
2131 * Returns a string in allocated memory or NULL.
2132 */
2133 char_u *
2134 getexmodeline(promptc, cookie, indent)
2135 int promptc; /* normally ':', NUL for ":append" and '?' for
2136 :s prompt */
2137 void *cookie UNUSED;
2138 int indent; /* indent for inside conditionals */
2139 {
2140 garray_T line_ga;
2141 char_u *pend;
2142 int startcol = 0;
2143 int c1 = 0;
2144 int escaped = FALSE; /* CTRL-V typed */
2145 int vcol = 0;
2146 char_u *p;
2147 int prev_char;
2148
2149 /* Switch cursor on now. This avoids that it happens after the "\n", which
2150 * confuses the system function that computes tabstops. */
2151 cursor_on();
2152
2153 /* always start in column 0; write a newline if necessary */
2154 compute_cmdrow();
2155 if ((msg_col || msg_didout) && promptc != '?')
2156 msg_putchar('\n');
2157 if (promptc == ':')
2158 {
2159 /* indent that is only displayed, not in the line itself */
2160 if (p_prompt)
2161 msg_putchar(':');
2162 while (indent-- > 0)
2163 msg_putchar(' ');
2164 startcol = msg_col;
2165 }
2166
2167 ga_init2(&line_ga, 1, 30);
2168
2169 /* autoindent for :insert and :append is in the line itself */
2170 if (promptc <= 0)
2171 {
2172 vcol = indent;
2173 while (indent >= 8)
2174 {
2175 ga_append(&line_ga, TAB);
2176 msg_puts((char_u *)" ");
2177 indent -= 8;
2178 }
2179 while (indent-- > 0)
2180 {
2181 ga_append(&line_ga, ' ');
2182 msg_putchar(' ');
2183 }
2184 }
2185 ++no_mapping;
2186 ++allow_keys;
2187
2188 /*
2189 * Get the line, one character at a time.
2190 */
2191 got_int = FALSE;
2192 while (!got_int)
2193 {
2194 if (ga_grow(&line_ga, 40) == FAIL)
2195 break;
2196
2197 /* Get one character at a time. Don't use inchar(), it can't handle
2198 * special characters. */
2199 prev_char = c1;
2200 c1 = vgetc();
2201
2202 /*
2203 * Handle line editing.
2204 * Previously this was left to the system, putting the terminal in
2205 * cooked mode, but then CTRL-D and CTRL-T can't be used properly.
2206 */
2207 if (got_int)
2208 {
2209 msg_putchar('\n');
2210 break;
2211 }
2212
2213 if (!escaped)
2214 {
2215 /* CR typed means "enter", which is NL */
2216 if (c1 == '\r')
2217 c1 = '\n';
2218
2219 if (c1 == BS || c1 == K_BS
2220 || c1 == DEL || c1 == K_DEL || c1 == K_KDEL)
2221 {
2222 if (line_ga.ga_len > 0)
2223 {
2224 --line_ga.ga_len;
2225 goto redraw;
2226 }
2227 continue;
2228 }
2229
2230 if (c1 == Ctrl_U)
2231 {
2232 msg_col = startcol;
2233 msg_clr_eos();
2234 line_ga.ga_len = 0;
2235 continue;
2236 }
2237
2238 if (c1 == Ctrl_T)
2239 {
2240 p = (char_u *)line_ga.ga_data;
2241 p[line_ga.ga_len] = NUL;
2242 indent = get_indent_str(p, 8);
2243 indent += curbuf->b_p_sw - indent % curbuf->b_p_sw;
2244 add_indent:
2245 while (get_indent_str(p, 8) < indent)
2246 {
2247 char_u *s = skipwhite(p);
2248
2249 ga_grow(&line_ga, 1);
2250 mch_memmove(s + 1, s, line_ga.ga_len - (s - p) + 1);
2251 *s = ' ';
2252 ++line_ga.ga_len;
2253 }
2254 redraw:
2255 /* redraw the line */
2256 msg_col = startcol;
2257 vcol = 0;
2258 for (p = (char_u *)line_ga.ga_data;
2259 p < (char_u *)line_ga.ga_data + line_ga.ga_len; ++p)
2260 {
2261 if (*p == TAB)
2262 {
2263 do
2264 {
2265 msg_putchar(' ');
2266 } while (++vcol % 8);
2267 }
2268 else
2269 {
2270 msg_outtrans_len(p, 1);
2271 vcol += char2cells(*p);
2272 }
2273 }
2274 msg_clr_eos();
2275 windgoto(msg_row, msg_col);
2276 continue;
2277 }
2278
2279 if (c1 == Ctrl_D)
2280 {
2281 /* Delete one shiftwidth. */
2282 p = (char_u *)line_ga.ga_data;
2283 if (prev_char == '0' || prev_char == '^')
2284 {
2285 if (prev_char == '^')
2286 ex_keep_indent = TRUE;
2287 indent = 0;
2288 p[--line_ga.ga_len] = NUL;
2289 }
2290 else
2291 {
2292 p[line_ga.ga_len] = NUL;
2293 indent = get_indent_str(p, 8);
2294 --indent;
2295 indent -= indent % curbuf->b_p_sw;
2296 }
2297 while (get_indent_str(p, 8) > indent)
2298 {
2299 char_u *s = skipwhite(p);
2300
2301 mch_memmove(s - 1, s, line_ga.ga_len - (s - p) + 1);
2302 --line_ga.ga_len;
2303 }
2304 goto add_indent;
2305 }
2306
2307 if (c1 == Ctrl_V || c1 == Ctrl_Q)
2308 {
2309 escaped = TRUE;
2310 continue;
2311 }
2312
2313 /* Ignore special key codes: mouse movement, K_IGNORE, etc. */
2314 if (IS_SPECIAL(c1))
2315 continue;
2316 }
2317
2318 if (IS_SPECIAL(c1))
2319 c1 = '?';
2320 ((char_u *)line_ga.ga_data)[line_ga.ga_len] = c1;
2321 if (c1 == '\n')
2322 msg_putchar('\n');
2323 else if (c1 == TAB)
2324 {
2325 /* Don't use chartabsize(), 'ts' can be different */
2326 do
2327 {
2328 msg_putchar(' ');
2329 } while (++vcol % 8);
2330 }
2331 else
2332 {
2333 msg_outtrans_len(
2334 ((char_u *)line_ga.ga_data) + line_ga.ga_len, 1);
2335 vcol += char2cells(c1);
2336 }
2337 ++line_ga.ga_len;
2338 escaped = FALSE;
2339
2340 windgoto(msg_row, msg_col);
2341 pend = (char_u *)(line_ga.ga_data) + line_ga.ga_len;
2342
2343 /* we are done when a NL is entered, but not when it comes after a
2344 * backslash */
2345 if (line_ga.ga_len > 0 && pend[-1] == '\n'
2346 && (line_ga.ga_len <= 1 || pend[-2] != '\\'))
2347 {
2348 --line_ga.ga_len;
2349 --pend;
2350 *pend = NUL;
2351 break;
2352 }
2353 }
2354
2355 --no_mapping;
2356 --allow_keys;
2357
2358 /* make following messages go to the next line */
2359 msg_didout = FALSE;
2360 msg_col = 0;
2361 if (msg_row < Rows - 1)
2362 ++msg_row;
2363 emsg_on_display = FALSE; /* don't want ui_delay() */
2364
2365 if (got_int)
2366 ga_clear(&line_ga);
2367
2368 return (char_u *)line_ga.ga_data;
2369 }
2370
2371 # if defined(MCH_CURSOR_SHAPE) || defined(FEAT_GUI) \
2372 || defined(FEAT_MOUSESHAPE) || defined(PROTO)
2373 /*
2374 * Return TRUE if ccline.overstrike is on.
2375 */
2376 int
2377 cmdline_overstrike()
2378 {
2379 return ccline.overstrike;
2380 }
2381
2382 /*
2383 * Return TRUE if the cursor is at the end of the cmdline.
2384 */
2385 int
2386 cmdline_at_end()
2387 {
2388 return (ccline.cmdpos >= ccline.cmdlen);
2389 }
2390 #endif
2391
2392 #if (defined(FEAT_XIM) && (defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MACVIM))) \
2393 || defined(PROTO)
2394 /*
2395 * Return the virtual column number at the current cursor position.
2396 * This is used by the IM code to obtain the start of the preedit string.
2397 */
2398 colnr_T
2399 cmdline_getvcol_cursor()
2400 {
2401 if (ccline.cmdbuff == NULL || ccline.cmdpos > ccline.cmdlen)
2402 return MAXCOL;
2403
2404 # ifdef FEAT_MBYTE
2405 if (has_mbyte)
2406 {
2407 colnr_T col;
2408 int i = 0;
2409
2410 for (col = 0; i < ccline.cmdpos; ++col)
2411 i += (*mb_ptr2len)(ccline.cmdbuff + i);
2412
2413 return col;
2414 }
2415 else
2416 # endif
2417 return ccline.cmdpos;
2418 }
2419 #endif
2420
2421 #if defined(FEAT_XIM) && (defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MACVIM))
2422 /*
2423 * If part of the command line is an IM preedit string, redraw it with
2424 * IM feedback attributes. The cursor position is restored after drawing.
2425 */
2426 static void
2427 redrawcmd_preedit()
2428 {
2429 if ((State & CMDLINE)
2430 # ifndef FEAT_GUI_MACVIM
2431 && xic != NULL
2432 # endif
2433 /* && im_get_status() doesn't work when using SCIM */
2434 && !p_imdisable
2435 && im_is_preediting())
2436 {
2437 int cmdpos = 0;
2438 int cmdspos;
2439 int old_row;
2440 int old_col;
2441 colnr_T col;
2442
2443 old_row = msg_row;
2444 old_col = msg_col;
2445 cmdspos = ((ccline.cmdfirstc != NUL) ? 1 : 0) + ccline.cmdindent;
2446
2447 # ifdef FEAT_MBYTE
2448 if (has_mbyte)
2449 {
2450 for (col = 0; col < preedit_start_col
2451 && cmdpos < ccline.cmdlen; ++col)
2452 {
2453 cmdspos += (*mb_ptr2cells)(ccline.cmdbuff + cmdpos);
2454 cmdpos += (*mb_ptr2len)(ccline.cmdbuff + cmdpos);
2455 }
2456 }
2457 else
2458 # endif
2459 {
2460 cmdspos += preedit_start_col;
2461 cmdpos += preedit_start_col;
2462 }
2463
2464 msg_row = cmdline_row + (cmdspos / (int)Columns);
2465 msg_col = cmdspos % (int)Columns;
2466 if (msg_row >= Rows)
2467 msg_row = Rows - 1;
2468
2469 for (col = 0; cmdpos < ccline.cmdlen; ++col)
2470 {
2471 int char_len;
2472 int char_attr;
2473
2474 char_attr = im_get_feedback_attr(col);
2475 if (char_attr < 0)
2476 break; /* end of preedit string */
2477
2478 # ifdef FEAT_MBYTE
2479 if (has_mbyte)
2480 char_len = (*mb_ptr2len)(ccline.cmdbuff + cmdpos);
2481 else
2482 # endif
2483 char_len = 1;
2484
2485 msg_outtrans_len_attr(ccline.cmdbuff + cmdpos, char_len, char_attr);
2486 cmdpos += char_len;
2487 }
2488
2489 msg_row = old_row;
2490 msg_col = old_col;
2491 }
2492 }
2493 #endif /* FEAT_XIM && (FEAT_GUI_GTK || FEAT_GUI_MACVIM) */
2494
2495 /*
2496 * Allocate a new command line buffer.
2497 * Assigns the new buffer to ccline.cmdbuff and ccline.cmdbufflen.
2498 * Returns the new value of ccline.cmdbuff and ccline.cmdbufflen.
2499 */
2500 static void
2501 alloc_cmdbuff(len)
2502 int len;
2503 {
2504 /*
2505 * give some extra space to avoid having to allocate all the time
2506 */
2507 if (len < 80)
2508 len = 100;
2509 else
2510 len += 20;
2511
2512 ccline.cmdbuff = alloc(len); /* caller should check for out-of-memory */
2513 ccline.cmdbufflen = len;
2514 }
2515
2516 /*
2517 * Re-allocate the command line to length len + something extra.
2518 * return FAIL for failure, OK otherwise
2519 */
2520 static int
2521 realloc_cmdbuff(len)
2522 int len;
2523 {
2524 char_u *p;
2525
2526 p = ccline.cmdbuff;
2527 alloc_cmdbuff(len); /* will get some more */
2528 if (ccline.cmdbuff == NULL) /* out of memory */
2529 {
2530 ccline.cmdbuff = p; /* keep the old one */
2531 return FAIL;
2532 }
2533 mch_memmove(ccline.cmdbuff, p, (size_t)ccline.cmdlen + 1);
2534 vim_free(p);
2535
2536 if (ccline.xpc != NULL
2537 && ccline.xpc->xp_pattern != NULL
2538 && ccline.xpc->xp_context != EXPAND_NOTHING
2539 && ccline.xpc->xp_context != EXPAND_UNSUCCESSFUL)
2540 {
2541 int i = (int)(ccline.xpc->xp_pattern - p);
2542
2543 /* If xp_pattern points inside the old cmdbuff it needs to be adjusted
2544 * to point into the newly allocated memory. */
2545 if (i >= 0 && i <= ccline.cmdlen)
2546 ccline.xpc->xp_pattern = ccline.cmdbuff + i;
2547 }
2548
2549 return OK;
2550 }
2551
2552 #if defined(FEAT_ARABIC) || defined(PROTO)
2553 static char_u *arshape_buf = NULL;
2554
2555 # if defined(EXITFREE) || defined(PROTO)
2556 void
2557 free_cmdline_buf()
2558 {
2559 vim_free(arshape_buf);
2560 }
2561 # endif
2562 #endif
2563
2564 /*
2565 * Draw part of the cmdline at the current cursor position. But draw stars
2566 * when cmdline_star is TRUE.
2567 */
2568 static void
2569 draw_cmdline(start, len)
2570 int start;
2571 int len;
2572 {
2573 #if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
2574 int i;
2575
2576 if (cmdline_star > 0)
2577 for (i = 0; i < len; ++i)
2578 {
2579 msg_putchar('*');
2580 # ifdef FEAT_MBYTE
2581 if (has_mbyte)
2582 i += (*mb_ptr2len)(ccline.cmdbuff + start + i) - 1;
2583 # endif
2584 }
2585 else
2586 #endif
2587 #ifdef FEAT_ARABIC
2588 if (p_arshape && !p_tbidi && enc_utf8 && len > 0)
2589 {
2590 static int buflen = 0;
2591 char_u *p;
2592 int j;
2593 int newlen = 0;
2594 int mb_l;
2595 int pc, pc1 = 0;
2596 int prev_c = 0;
2597 int prev_c1 = 0;
2598 int u8c;
2599 int u8cc[MAX_MCO];
2600 int nc = 0;
2601
2602 /*
2603 * Do arabic shaping into a temporary buffer. This is very
2604 * inefficient!
2605 */
2606 if (len * 2 + 2 > buflen)
2607 {
2608 /* Re-allocate the buffer. We keep it around to avoid a lot of
2609 * alloc()/free() calls. */
2610 vim_free(arshape_buf);
2611 buflen = len * 2 + 2;
2612 arshape_buf = alloc(buflen);
2613 if (arshape_buf == NULL)
2614 return; /* out of memory */
2615 }
2616
2617 if (utf_iscomposing(utf_ptr2char(ccline.cmdbuff + start)))
2618 {
2619 /* Prepend a space to draw the leading composing char on. */
2620 arshape_buf[0] = ' ';
2621 newlen = 1;
2622 }
2623
2624 for (j = start; j < start + len; j += mb_l)
2625 {
2626 p = ccline.cmdbuff + j;
2627 u8c = utfc_ptr2char_len(p, u8cc, start + len - j);
2628 mb_l = utfc_ptr2len_len(p, start + len - j);
2629 if (ARABIC_CHAR(u8c))
2630 {
2631 /* Do Arabic shaping. */
2632 if (cmdmsg_rl)
2633 {
2634 /* displaying from right to left */
2635 pc = prev_c;
2636 pc1 = prev_c1;
2637 prev_c1 = u8cc[0];
2638 if (j + mb_l >= start + len)
2639 nc = NUL;
2640 else
2641 nc = utf_ptr2char(p + mb_l);
2642 }
2643 else
2644 {
2645 /* displaying from left to right */
2646 if (j + mb_l >= start + len)
2647 pc = NUL;
2648 else
2649 {
2650 int pcc[MAX_MCO];
2651
2652 pc = utfc_ptr2char_len(p + mb_l, pcc,
2653 start + len - j - mb_l);
2654 pc1 = pcc[0];
2655 }
2656 nc = prev_c;
2657 }
2658 prev_c = u8c;
2659
2660 u8c = arabic_shape(u8c, NULL, &u8cc[0], pc, pc1, nc);
2661
2662 newlen += (*mb_char2bytes)(u8c, arshape_buf + newlen);
2663 if (u8cc[0] != 0)
2664 {
2665 newlen += (*mb_char2bytes)(u8cc[0], arshape_buf + newlen);
2666 if (u8cc[1] != 0)
2667 newlen += (*mb_char2bytes)(u8cc[1],
2668 arshape_buf + newlen);
2669 }
2670 }
2671 else
2672 {
2673 prev_c = u8c;
2674 mch_memmove(arshape_buf + newlen, p, mb_l);
2675 newlen += mb_l;
2676 }
2677 }
2678
2679 msg_outtrans_len(arshape_buf, newlen);
2680 }
2681 else
2682 #endif
2683 msg_outtrans_len(ccline.cmdbuff + start, len);
2684 }
2685
2686 /*
2687 * Put a character on the command line. Shifts the following text to the
2688 * right when "shift" is TRUE. Used for CTRL-V, CTRL-K, etc.
2689 * "c" must be printable (fit in one display cell)!
2690 */
2691 void
2692 putcmdline(c, shift)
2693 int c;
2694 int shift;
2695 {
2696 if (cmd_silent)
2697 return;
2698 msg_no_more = TRUE;
2699 msg_putchar(c);
2700 if (shift)
2701 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
2702 msg_no_more = FALSE;
2703 cursorcmd();
2704 }
2705
2706 /*
2707 * Undo a putcmdline(c, FALSE).
2708 */
2709 void
2710 unputcmdline()
2711 {
2712 if (cmd_silent)
2713 return;
2714 msg_no_more = TRUE;
2715 if (ccline.cmdlen == ccline.cmdpos)
2716 msg_putchar(' ');
2717 else
2718 draw_cmdline(ccline.cmdpos, 1);
2719 msg_no_more = FALSE;
2720 cursorcmd();
2721 }
2722
2723 /*
2724 * Put the given string, of the given length, onto the command line.
2725 * If len is -1, then STRLEN() is used to calculate the length.
2726 * If 'redraw' is TRUE then the new part of the command line, and the remaining
2727 * part will be redrawn, otherwise it will not. If this function is called
2728 * twice in a row, then 'redraw' should be FALSE and redrawcmd() should be
2729 * called afterwards.
2730 */
2731 int
2732 put_on_cmdline(str, len, redraw)
2733 char_u *str;
2734 int len;
2735 int redraw;
2736 {
2737 int retval;
2738 int i;
2739 int m;
2740 int c;
2741
2742 if (len < 0)
2743 len = (int)STRLEN(str);
2744
2745 /* Check if ccline.cmdbuff needs to be longer */
2746 if (ccline.cmdlen + len + 1 >= ccline.cmdbufflen)
2747 retval = realloc_cmdbuff(ccline.cmdlen + len);
2748 else
2749 retval = OK;
2750 if (retval == OK)
2751 {
2752 if (!ccline.overstrike)
2753 {
2754 mch_memmove(ccline.cmdbuff + ccline.cmdpos + len,
2755 ccline.cmdbuff + ccline.cmdpos,
2756 (size_t)(ccline.cmdlen - ccline.cmdpos));
2757 ccline.cmdlen += len;
2758 }
2759 else
2760 {
2761 #ifdef FEAT_MBYTE
2762 if (has_mbyte)
2763 {
2764 /* Count nr of characters in the new string. */
2765 m = 0;
2766 for (i = 0; i < len; i += (*mb_ptr2len)(str + i))
2767 ++m;
2768 /* Count nr of bytes in cmdline that are overwritten by these
2769 * characters. */
2770 for (i = ccline.cmdpos; i < ccline.cmdlen && m > 0;
2771 i += (*mb_ptr2len)(ccline.cmdbuff + i))
2772 --m;
2773 if (i < ccline.cmdlen)
2774 {
2775 mch_memmove(ccline.cmdbuff + ccline.cmdpos + len,
2776 ccline.cmdbuff + i, (size_t)(ccline.cmdlen - i));
2777 ccline.cmdlen += ccline.cmdpos + len - i;
2778 }
2779 else
2780 ccline.cmdlen = ccline.cmdpos + len;
2781 }
2782 else
2783 #endif
2784 if (ccline.cmdpos + len > ccline.cmdlen)
2785 ccline.cmdlen = ccline.cmdpos + len;
2786 }
2787 mch_memmove(ccline.cmdbuff + ccline.cmdpos, str, (size_t)len);
2788 ccline.cmdbuff[ccline.cmdlen] = NUL;
2789
2790 #ifdef FEAT_MBYTE
2791 if (enc_utf8)
2792 {
2793 /* When the inserted text starts with a composing character,
2794 * backup to the character before it. There could be two of them.
2795 */
2796 i = 0;
2797 c = utf_ptr2char(ccline.cmdbuff + ccline.cmdpos);
2798 while (ccline.cmdpos > 0 && utf_iscomposing(c))
2799 {
2800 i = (*mb_head_off)(ccline.cmdbuff,
2801 ccline.cmdbuff + ccline.cmdpos - 1) + 1;
2802 ccline.cmdpos -= i;
2803 len += i;
2804 c = utf_ptr2char(ccline.cmdbuff + ccline.cmdpos);
2805 }
2806 # ifdef FEAT_ARABIC
2807 if (i == 0 && ccline.cmdpos > 0 && arabic_maycombine(c))
2808 {
2809 /* Check the previous character for Arabic combining pair. */
2810 i = (*mb_head_off)(ccline.cmdbuff,
2811 ccline.cmdbuff + ccline.cmdpos - 1) + 1;
2812 if (arabic_combine(utf_ptr2char(ccline.cmdbuff
2813 + ccline.cmdpos - i), c))
2814 {
2815 ccline.cmdpos -= i;
2816 len += i;
2817 }
2818 else
2819 i = 0;
2820 }
2821 # endif
2822 if (i != 0)
2823 {
2824 /* Also backup the cursor position. */
2825 i = ptr2cells(ccline.cmdbuff + ccline.cmdpos);
2826 ccline.cmdspos -= i;
2827 msg_col -= i;
2828 if (msg_col < 0)
2829 {
2830 msg_col += Columns;
2831 --msg_row;
2832 }
2833 }
2834 }
2835 #endif
2836
2837 if (redraw && !cmd_silent)
2838 {
2839 msg_no_more = TRUE;
2840 i = cmdline_row;
2841 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
2842 /* Avoid clearing the rest of the line too often. */
2843 if (cmdline_row != i || ccline.overstrike)
2844 msg_clr_eos();
2845 msg_no_more = FALSE;
2846 }
2847 #ifdef FEAT_FKMAP
2848 /*
2849 * If we are in Farsi command mode, the character input must be in
2850 * Insert mode. So do not advance the cmdpos.
2851 */
2852 if (!cmd_fkmap)
2853 #endif
2854 {
2855 if (KeyTyped)
2856 {
2857 m = Columns * Rows;
2858 if (m < 0) /* overflow, Columns or Rows at weird value */
2859 m = MAXCOL;
2860 }
2861 else
2862 m = MAXCOL;
2863 for (i = 0; i < len; ++i)
2864 {
2865 c = cmdline_charsize(ccline.cmdpos);
2866 #ifdef FEAT_MBYTE
2867 /* count ">" for a double-wide char that doesn't fit. */
2868 if (has_mbyte)
2869 correct_cmdspos(ccline.cmdpos, c);
2870 #endif
2871 /* Stop cursor at the end of the screen, but do increment the
2872 * insert position, so that entering a very long command
2873 * works, even though you can't see it. */
2874 if (ccline.cmdspos + c < m)
2875 ccline.cmdspos += c;
2876 #ifdef FEAT_MBYTE
2877 if (has_mbyte)
2878 {
2879 c = (*mb_ptr2len)(ccline.cmdbuff + ccline.cmdpos) - 1;
2880 if (c > len - i - 1)
2881 c = len - i - 1;
2882 ccline.cmdpos += c;
2883 i += c;
2884 }
2885 #endif
2886 ++ccline.cmdpos;
2887 }
2888 }
2889 }
2890 if (redraw)
2891 msg_check();
2892 return retval;
2893 }
2894
2895 static struct cmdline_info prev_ccline;
2896 static int prev_ccline_used = FALSE;
2897
2898 /*
2899 * Save ccline, because obtaining the "=" register may execute "normal :cmd"
2900 * and overwrite it. But get_cmdline_str() may need it, thus make it
2901 * available globally in prev_ccline.
2902 */
2903 static void
2904 save_cmdline(ccp)
2905 struct cmdline_info *ccp;
2906 {
2907 if (!prev_ccline_used)
2908 {
2909 vim_memset(&prev_ccline, 0, sizeof(struct cmdline_info));
2910 prev_ccline_used = TRUE;
2911 }
2912 *ccp = prev_ccline;
2913 prev_ccline = ccline;
2914 ccline.cmdbuff = NULL;
2915 ccline.cmdprompt = NULL;
2916 ccline.xpc = NULL;
2917 }
2918
2919 /*
2920 * Restore ccline after it has been saved with save_cmdline().
2921 */
2922 static void
2923 restore_cmdline(ccp)
2924 struct cmdline_info *ccp;
2925 {
2926 ccline = prev_ccline;
2927 prev_ccline = *ccp;
2928 }
2929
2930 #if defined(FEAT_EVAL) || defined(PROTO)
2931 /*
2932 * Save the command line into allocated memory. Returns a pointer to be
2933 * passed to restore_cmdline_alloc() later.
2934 * Returns NULL when failed.
2935 */
2936 char_u *
2937 save_cmdline_alloc()
2938 {
2939 struct cmdline_info *p;
2940
2941 p = (struct cmdline_info *)alloc((unsigned)sizeof(struct cmdline_info));
2942 if (p != NULL)
2943 save_cmdline(p);
2944 return (char_u *)p;
2945 }
2946
2947 /*
2948 * Restore the command line from the return value of save_cmdline_alloc().
2949 */
2950 void
2951 restore_cmdline_alloc(p)
2952 char_u *p;
2953 {
2954 if (p != NULL)
2955 {
2956 restore_cmdline((struct cmdline_info *)p);
2957 vim_free(p);
2958 }
2959 }
2960 #endif
2961
2962 /*
2963 * paste a yank register into the command line.
2964 * used by CTRL-R command in command-line mode
2965 * insert_reg() can't be used here, because special characters from the
2966 * register contents will be interpreted as commands.
2967 *
2968 * return FAIL for failure, OK otherwise
2969 */
2970 static int
2971 cmdline_paste(regname, literally, remcr)
2972 int regname;
2973 int literally; /* Insert text literally instead of "as typed" */
2974 int remcr; /* remove trailing CR */
2975 {
2976 long i;
2977 char_u *arg;
2978 char_u *p;
2979 int allocated;
2980 struct cmdline_info save_ccline;
2981
2982 /* check for valid regname; also accept special characters for CTRL-R in
2983 * the command line */
2984 if (regname != Ctrl_F && regname != Ctrl_P && regname != Ctrl_W
2985 && regname != Ctrl_A && !valid_yank_reg(regname, FALSE))
2986 return FAIL;
2987
2988 /* A register containing CTRL-R can cause an endless loop. Allow using
2989 * CTRL-C to break the loop. */
2990 line_breakcheck();
2991 if (got_int)
2992 return FAIL;
2993
2994 #ifdef FEAT_CLIPBOARD
2995 regname = may_get_selection(regname);
2996 #endif
2997
2998 /* Need to save and restore ccline. And set "textlock" to avoid nasty
2999 * things like going to another buffer when evaluating an expression. */
3000 save_cmdline(&save_ccline);
3001 ++textlock;
3002 i = get_spec_reg(regname, &arg, &allocated, TRUE);
3003 --textlock;
3004 restore_cmdline(&save_ccline);
3005
3006 if (i)
3007 {
3008 /* Got the value of a special register in "arg". */
3009 if (arg == NULL)
3010 return FAIL;
3011
3012 /* When 'incsearch' is set and CTRL-R CTRL-W used: skip the duplicate
3013 * part of the word. */
3014 p = arg;
3015 if (p_is && regname == Ctrl_W)
3016 {
3017 char_u *w;
3018 int len;
3019
3020 /* Locate start of last word in the cmd buffer. */
3021 for (w = ccline.cmdbuff + ccline.cmdlen; w > ccline.cmdbuff; )
3022 {
3023 #ifdef FEAT_MBYTE
3024 if (has_mbyte)
3025 {
3026 len = (*mb_head_off)(ccline.cmdbuff, w - 1) + 1;
3027 if (!vim_iswordc(mb_ptr2char(w - len)))
3028 break;
3029 w -= len;
3030 }
3031 else
3032 #endif
3033 {
3034 if (!vim_iswordc(w[-1]))
3035 break;
3036 --w;
3037 }
3038 }
3039 len = (int)((ccline.cmdbuff + ccline.cmdlen) - w);
3040 if (p_ic ? STRNICMP(w, arg, len) == 0 : STRNCMP(w, arg, len) == 0)
3041 p += len;
3042 }
3043
3044 cmdline_paste_str(p, literally);
3045 if (allocated)
3046 vim_free(arg);
3047 return OK;
3048 }
3049
3050 return cmdline_paste_reg(regname, literally, remcr);
3051 }
3052
3053 /*
3054 * Put a string on the command line.
3055 * When "literally" is TRUE, insert literally.
3056 * When "literally" is FALSE, insert as typed, but don't leave the command
3057 * line.
3058 */
3059 void
3060 cmdline_paste_str(s, literally)
3061 char_u *s;
3062 int literally;
3063 {
3064 int c, cv;
3065
3066 if (literally)
3067 put_on_cmdline(s, -1, TRUE);
3068 else
3069 while (*s != NUL)
3070 {
3071 cv = *s;
3072 if (cv == Ctrl_V && s[1])
3073 ++s;
3074 #ifdef FEAT_MBYTE
3075 if (has_mbyte)
3076 c = mb_cptr2char_adv(&s);
3077 else
3078 #endif
3079 c = *s++;
3080 if (cv == Ctrl_V || c == ESC || c == Ctrl_C || c == CAR || c == NL
3081 #ifdef UNIX
3082 || c == intr_char
3083 #endif
3084 || (c == Ctrl_BSL && *s == Ctrl_N))
3085 stuffcharReadbuff(Ctrl_V);
3086 stuffcharReadbuff(c);
3087 }
3088 }
3089
3090 #ifdef FEAT_WILDMENU
3091 /*
3092 * Delete characters on the command line, from "from" to the current
3093 * position.
3094 */
3095 static void
3096 cmdline_del(from)
3097 int from;
3098 {
3099 mch_memmove(ccline.cmdbuff + from, ccline.cmdbuff + ccline.cmdpos,
3100 (size_t)(ccline.cmdlen - ccline.cmdpos + 1));
3101 ccline.cmdlen -= ccline.cmdpos - from;
3102 ccline.cmdpos = from;
3103 }
3104 #endif
3105
3106 /*
3107 * this function is called when the screen size changes and with incremental
3108 * search
3109 */
3110 void
3111 redrawcmdline()
3112 {
3113 if (cmd_silent)
3114 return;
3115 need_wait_return = FALSE;
3116 compute_cmdrow();
3117 redrawcmd();
3118 cursorcmd();
3119 }
3120
3121 static void
3122 redrawcmdprompt()
3123 {
3124 int i;
3125
3126 if (cmd_silent)
3127 return;
3128 if (ccline.cmdfirstc != NUL)
3129 msg_putchar(ccline.cmdfirstc);
3130 if (ccline.cmdprompt != NULL)
3131 {
3132 msg_puts_attr(ccline.cmdprompt, ccline.cmdattr);
3133 ccline.cmdindent = msg_col + (msg_row - cmdline_row) * Columns;
3134 /* do the reverse of set_cmdspos() */
3135 if (ccline.cmdfirstc != NUL)
3136 --ccline.cmdindent;
3137 }
3138 else
3139 for (i = ccline.cmdindent; i > 0; --i)
3140 msg_putchar(' ');
3141 }
3142
3143 /*
3144 * Redraw what is currently on the command line.
3145 */
3146 void
3147 redrawcmd()
3148 {
3149 if (cmd_silent)
3150 return;
3151
3152 /* when 'incsearch' is set there may be no command line while redrawing */
3153 if (ccline.cmdbuff == NULL)
3154 {
3155 windgoto(cmdline_row, 0);
3156 msg_clr_eos();
3157 return;
3158 }
3159
3160 msg_start();
3161 redrawcmdprompt();
3162
3163 /* Don't use more prompt, truncate the cmdline if it doesn't fit. */
3164 msg_no_more = TRUE;
3165 draw_cmdline(0, ccline.cmdlen);
3166 msg_clr_eos();
3167 msg_no_more = FALSE;
3168
3169 set_cmdspos_cursor();
3170
3171 /*
3172 * An emsg() before may have set msg_scroll. This is used in normal mode,
3173 * in cmdline mode we can reset them now.
3174 */
3175 msg_scroll = FALSE; /* next message overwrites cmdline */
3176
3177 /* Typing ':' at the more prompt may set skip_redraw. We don't want this
3178 * in cmdline mode */
3179 skip_redraw = FALSE;
3180 }
3181
3182 void
3183 compute_cmdrow()
3184 {
3185 if (exmode_active || msg_scrolled != 0)
3186 cmdline_row = Rows - 1;
3187 else
3188 cmdline_row = W_WINROW(lastwin) + lastwin->w_height
3189 + W_STATUS_HEIGHT(lastwin);
3190 }
3191
3192 static void
3193 cursorcmd()
3194 {
3195 if (cmd_silent)
3196 return;
3197
3198 #ifdef FEAT_RIGHTLEFT
3199 if (cmdmsg_rl)
3200 {
3201 msg_row = cmdline_row + (ccline.cmdspos / (int)(Columns - 1));
3202 msg_col = (int)Columns - (ccline.cmdspos % (int)(Columns - 1)) - 1;
3203 if (msg_row <= 0)
3204 msg_row = Rows - 1;
3205 }
3206 else
3207 #endif
3208 {
3209 msg_row = cmdline_row + (ccline.cmdspos / (int)Columns);
3210 msg_col = ccline.cmdspos % (int)Columns;
3211 if (msg_row >= Rows)
3212 msg_row = Rows - 1;
3213 }
3214
3215 windgoto(msg_row, msg_col);
3216 #if defined(FEAT_XIM) && (defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MACVIM))
3217 redrawcmd_preedit();
3218 #endif
3219 #ifdef MCH_CURSOR_SHAPE
3220 mch_update_cursor();
3221 #endif
3222 }
3223
3224 void
3225 gotocmdline(clr)
3226 int clr;
3227 {
3228 msg_start();
3229 #ifdef FEAT_RIGHTLEFT
3230 if (cmdmsg_rl)
3231 msg_col = Columns - 1;
3232 else
3233 #endif
3234 msg_col = 0; /* always start in column 0 */
3235 if (clr) /* clear the bottom line(s) */
3236 msg_clr_eos(); /* will reset clear_cmdline */
3237 windgoto(cmdline_row, 0);
3238 }
3239
3240 /*
3241 * Check the word in front of the cursor for an abbreviation.
3242 * Called when the non-id character "c" has been entered.
3243 * When an abbreviation is recognized it is removed from the text with
3244 * backspaces and the replacement string is inserted, followed by "c".
3245 */
3246 static int
3247 ccheck_abbr(c)
3248 int c;
3249 {
3250 if (p_paste || no_abbr) /* no abbreviations or in paste mode */
3251 return FALSE;
3252
3253 return check_abbr(c, ccline.cmdbuff, ccline.cmdpos, 0);
3254 }
3255
3256 /*
3257 * Return FAIL if this is not an appropriate context in which to do
3258 * completion of anything, return OK if it is (even if there are no matches).
3259 * For the caller, this means that the character is just passed through like a
3260 * normal character (instead of being expanded). This allows :s/^I^D etc.
3261 */
3262 static int
3263 nextwild(xp, type, options)
3264 expand_T *xp;
3265 int type;
3266 int options; /* extra options for ExpandOne() */
3267 {
3268 int i, j;
3269 char_u *p1;
3270 char_u *p2;
3271 int difflen;
3272 int v;
3273
3274 if (xp->xp_numfiles == -1)
3275 {
3276 set_expand_context(xp);
3277 cmd_showtail = expand_showtail(xp);
3278 }
3279
3280 if (xp->xp_context == EXPAND_UNSUCCESSFUL)
3281 {
3282 beep_flush();
3283 return OK; /* Something illegal on command line */
3284 }
3285 if (xp->xp_context == EXPAND_NOTHING)
3286 {
3287 /* Caller can use the character as a normal char instead */
3288 return FAIL;
3289 }
3290
3291 MSG_PUTS("..."); /* show that we are busy */
3292 out_flush();
3293
3294 i = (int)(xp->xp_pattern - ccline.cmdbuff);
3295 xp->xp_pattern_len = ccline.cmdpos - i;
3296
3297 if (type == WILD_NEXT || type == WILD_PREV)
3298 {
3299 /*
3300 * Get next/previous match for a previous expanded pattern.
3301 */
3302 p2 = ExpandOne(xp, NULL, NULL, 0, type);
3303 }
3304 else
3305 {
3306 /*
3307 * Translate string into pattern and expand it.
3308 */
3309 if ((p1 = addstar(xp->xp_pattern, xp->xp_pattern_len,
3310 xp->xp_context)) == NULL)
3311 p2 = NULL;
3312 else
3313 {
3314 p2 = ExpandOne(xp, p1,
3315 vim_strnsave(&ccline.cmdbuff[i], xp->xp_pattern_len),
3316 WILD_HOME_REPLACE|WILD_ADD_SLASH|WILD_SILENT|WILD_ESCAPE
3317 |options, type);
3318 vim_free(p1);
3319 /* longest match: make sure it is not shorter, happens with :help */
3320 if (p2 != NULL && type == WILD_LONGEST)
3321 {
3322 for (j = 0; j < xp->xp_pattern_len; ++j)
3323 if (ccline.cmdbuff[i + j] == '*'
3324 || ccline.cmdbuff[i + j] == '?')
3325 break;
3326 if ((int)STRLEN(p2) < j)
3327 {
3328 vim_free(p2);
3329 p2 = NULL;
3330 }
3331 }
3332 }
3333 }
3334
3335 if (p2 != NULL && !got_int)
3336 {
3337 difflen = (int)STRLEN(p2) - xp->xp_pattern_len;
3338 if (ccline.cmdlen + difflen > ccline.cmdbufflen - 4)
3339 {
3340 v = realloc_cmdbuff(ccline.cmdlen + difflen);
3341 xp->xp_pattern = ccline.cmdbuff + i;
3342 }
3343 else
3344 v = OK;
3345 if (v == OK)
3346 {
3347 mch_memmove(&ccline.cmdbuff[ccline.cmdpos + difflen],
3348 &ccline.cmdbuff[ccline.cmdpos],
3349 (size_t)(ccline.cmdlen - ccline.cmdpos + 1));
3350 mch_memmove(&ccline.cmdbuff[i], p2, STRLEN(p2));
3351 ccline.cmdlen += difflen;
3352 ccline.cmdpos += difflen;
3353 }
3354 }
3355 vim_free(p2);
3356
3357 redrawcmd();
3358 cursorcmd();
3359
3360 /* When expanding a ":map" command and no matches are found, assume that
3361 * the key is supposed to be inserted literally */
3362 if (xp->xp_context == EXPAND_MAPPINGS && p2 == NULL)
3363 return FAIL;
3364
3365 if (xp->xp_numfiles <= 0 && p2 == NULL)
3366 beep_flush();
3367 else if (xp->xp_numfiles == 1)
3368 /* free expanded pattern */
3369 (void)ExpandOne(xp, NULL, NULL, 0, WILD_FREE);
3370
3371 return OK;
3372 }
3373
3374 /*
3375 * Do wildcard expansion on the string 'str'.
3376 * Chars that should not be expanded must be preceded with a backslash.
3377 * Return a pointer to allocated memory containing the new string.
3378 * Return NULL for failure.
3379 *
3380 * "orig" is the originally expanded string, copied to allocated memory. It
3381 * should either be kept in orig_save or freed. When "mode" is WILD_NEXT or
3382 * WILD_PREV "orig" should be NULL.
3383 *
3384 * Results are cached in xp->xp_files and xp->xp_numfiles, except when "mode"
3385 * is WILD_EXPAND_FREE or WILD_ALL.
3386 *
3387 * mode = WILD_FREE: just free previously expanded matches
3388 * mode = WILD_EXPAND_FREE: normal expansion, do not keep matches
3389 * mode = WILD_EXPAND_KEEP: normal expansion, keep matches
3390 * mode = WILD_NEXT: use next match in multiple match, wrap to first
3391 * mode = WILD_PREV: use previous match in multiple match, wrap to first
3392 * mode = WILD_ALL: return all matches concatenated
3393 * mode = WILD_LONGEST: return longest matched part
3394 *
3395 * options = WILD_LIST_NOTFOUND: list entries without a match
3396 * options = WILD_HOME_REPLACE: do home_replace() for buffer names
3397 * options = WILD_USE_NL: Use '\n' for WILD_ALL
3398 * options = WILD_NO_BEEP: Don't beep for multiple matches
3399 * options = WILD_ADD_SLASH: add a slash after directory names
3400 * options = WILD_KEEP_ALL: don't remove 'wildignore' entries
3401 * options = WILD_SILENT: don't print warning messages
3402 * options = WILD_ESCAPE: put backslash before special chars
3403 *
3404 * The variables xp->xp_context and xp->xp_backslash must have been set!
3405 */
3406 char_u *
3407 ExpandOne(xp, str, orig, options, mode)
3408 expand_T *xp;
3409 char_u *str;
3410 char_u *orig; /* allocated copy of original of expanded string */
3411 int options;
3412 int mode;
3413 {
3414 char_u *ss = NULL;
3415 static int findex;
3416 static char_u *orig_save = NULL; /* kept value of orig */
3417 int orig_saved = FALSE;
3418 int i;
3419 long_u len;
3420 int non_suf_match; /* number without matching suffix */
3421
3422 /*
3423 * first handle the case of using an old match
3424 */
3425 if (mode == WILD_NEXT || mode == WILD_PREV)
3426 {
3427 if (xp->xp_numfiles > 0)
3428 {
3429 if (mode == WILD_PREV)
3430 {
3431 if (findex == -1)
3432 findex = xp->xp_numfiles;
3433 --findex;
3434 }
3435 else /* mode == WILD_NEXT */
3436 ++findex;
3437
3438 /*
3439 * When wrapping around, return the original string, set findex to
3440 * -1.
3441 */
3442 if (findex < 0)
3443 {
3444 if (orig_save == NULL)
3445 findex = xp->xp_numfiles - 1;
3446 else
3447 findex = -1;
3448 }
3449 if (findex >= xp->xp_numfiles)
3450 {
3451 if (orig_save == NULL)
3452 findex = 0;
3453 else
3454 findex = -1;
3455 }
3456 #ifdef FEAT_WILDMENU
3457 if (p_wmnu)
3458 win_redr_status_matches(xp, xp->xp_numfiles, xp->xp_files,
3459 findex, cmd_showtail);
3460 #endif
3461 if (findex == -1)
3462 return vim_strsave(orig_save);
3463 return vim_strsave(xp->xp_files[findex]);
3464 }
3465 else
3466 return NULL;
3467 }
3468
3469 /* free old names */
3470 if (xp->xp_numfiles != -1 && mode != WILD_ALL && mode != WILD_LONGEST)
3471 {
3472 FreeWild(xp->xp_numfiles, xp->xp_files);
3473 xp->xp_numfiles = -1;
3474 vim_free(orig_save);
3475 orig_save = NULL;
3476 }
3477 findex = 0;
3478
3479 if (mode == WILD_FREE) /* only release file name */
3480 return NULL;
3481
3482 if (xp->xp_numfiles == -1)
3483 {
3484 vim_free(orig_save);
3485 orig_save = orig;
3486 orig_saved = TRUE;
3487
3488 /*
3489 * Do the expansion.
3490 */
3491 if (ExpandFromContext(xp, str, &xp->xp_numfiles, &xp->xp_files,
3492 options) == FAIL)
3493 {
3494 #ifdef FNAME_ILLEGAL
3495 /* Illegal file name has been silently skipped. But when there
3496 * are wildcards, the real problem is that there was no match,
3497 * causing the pattern to be added, which has illegal characters.
3498 */
3499 if (!(options & WILD_SILENT) && (options & WILD_LIST_NOTFOUND))
3500 EMSG2(_(e_nomatch2), str);
3501 #endif
3502 }
3503 else if (xp->xp_numfiles == 0)
3504 {
3505 if (!(options & WILD_SILENT))
3506 EMSG2(_(e_nomatch2), str);
3507 }
3508 else
3509 {
3510 /* Escape the matches for use on the command line. */
3511 ExpandEscape(xp, str, xp->xp_numfiles, xp->xp_files, options);
3512
3513 /*
3514 * Check for matching suffixes in file names.
3515 */
3516 if (mode != WILD_ALL && mode != WILD_LONGEST)
3517 {
3518 if (xp->xp_numfiles)
3519 non_suf_match = xp->xp_numfiles;
3520 else
3521 non_suf_match = 1;
3522 if ((xp->xp_context == EXPAND_FILES
3523 || xp->xp_context == EXPAND_DIRECTORIES)
3524 && xp->xp_numfiles > 1)
3525 {
3526 /*
3527 * More than one match; check suffix.
3528 * The files will have been sorted on matching suffix in
3529 * expand_wildcards, only need to check the first two.
3530 */
3531 non_suf_match = 0;
3532 for (i = 0; i < 2; ++i)
3533 if (match_suffix(xp->xp_files[i]))
3534 ++non_suf_match;
3535 }
3536 if (non_suf_match != 1)
3537 {
3538 /* Can we ever get here unless it's while expanding
3539 * interactively? If not, we can get rid of this all
3540 * together. Don't really want to wait for this message
3541 * (and possibly have to hit return to continue!).
3542 */
3543 if (!(options & WILD_SILENT))
3544 EMSG(_(e_toomany));
3545 else if (!(options & WILD_NO_BEEP))
3546 beep_flush();
3547 }
3548 if (!(non_suf_match != 1 && mode == WILD_EXPAND_FREE))
3549 ss = vim_strsave(xp->xp_files[0]);
3550 }
3551 }
3552 }
3553
3554 /* Find longest common part */
3555 if (mode == WILD_LONGEST && xp->xp_numfiles > 0)
3556 {
3557 for (len = 0; xp->xp_files[0][len]; ++len)
3558 {
3559 for (i = 0; i < xp->xp_numfiles; ++i)
3560 {
3561 #ifdef CASE_INSENSITIVE_FILENAME
3562 if (xp->xp_context == EXPAND_DIRECTORIES
3563 || xp->xp_context == EXPAND_FILES
3564 || xp->xp_context == EXPAND_SHELLCMD
3565 || xp->xp_context == EXPAND_BUFFERS)
3566 {
3567 if (TOLOWER_LOC(xp->xp_files[i][len]) !=
3568 TOLOWER_LOC(xp->xp_files[0][len]))
3569 break;
3570 }
3571 else
3572 #endif
3573 if (xp->xp_files[i][len] != xp->xp_files[0][len])
3574 break;
3575 }
3576 if (i < xp->xp_numfiles)
3577 {
3578 if (!(options & WILD_NO_BEEP))
3579 vim_beep();
3580 break;
3581 }
3582 }
3583 ss = alloc((unsigned)len + 1);
3584 if (ss)
3585 vim_strncpy(ss, xp->xp_files[0], (size_t)len);
3586 findex = -1; /* next p_wc gets first one */
3587 }
3588
3589 /* Concatenate all matching names */
3590 if (mode == WILD_ALL && xp->xp_numfiles > 0)
3591 {
3592 len = 0;
3593 for (i = 0; i < xp->xp_numfiles; ++i)
3594 len += (long_u)STRLEN(xp->xp_files[i]) + 1;
3595 ss = lalloc(len, TRUE);
3596 if (ss != NULL)
3597 {
3598 *ss = NUL;
3599 for (i = 0; i < xp->xp_numfiles; ++i)
3600 {
3601 STRCAT(ss, xp->xp_files[i]);
3602 if (i != xp->xp_numfiles - 1)
3603 STRCAT(ss, (options & WILD_USE_NL) ? "\n" : " ");
3604 }
3605 }
3606 }
3607
3608 if (mode == WILD_EXPAND_FREE || mode == WILD_ALL)
3609 ExpandCleanup(xp);
3610
3611 /* Free "orig" if it wasn't stored in "orig_save". */
3612 if (!orig_saved)
3613 vim_free(orig);
3614
3615 return ss;
3616 }
3617
3618 /*
3619 * Prepare an expand structure for use.
3620 */
3621 void
3622 ExpandInit(xp)
3623 expand_T *xp;
3624 {
3625 xp->xp_pattern = NULL;
3626 xp->xp_pattern_len = 0;
3627 xp->xp_backslash = XP_BS_NONE;
3628 #ifndef BACKSLASH_IN_FILENAME
3629 xp->xp_shell = FALSE;
3630 #endif
3631 xp->xp_numfiles = -1;
3632 xp->xp_files = NULL;
3633 #if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL) && defined(FEAT_CMDL_COMPL)
3634 xp->xp_arg = NULL;
3635 #endif
3636 }
3637
3638 /*
3639 * Cleanup an expand structure after use.
3640 */
3641 void
3642 ExpandCleanup(xp)
3643 expand_T *xp;
3644 {
3645 if (xp->xp_numfiles >= 0)
3646 {
3647 FreeWild(xp->xp_numfiles, xp->xp_files);
3648 xp->xp_numfiles = -1;
3649 }
3650 }
3651
3652 void
3653 ExpandEscape(xp, str, numfiles, files, options)
3654 expand_T *xp;
3655 char_u *str;
3656 int numfiles;
3657 char_u **files;
3658 int options;
3659 {
3660 int i;
3661 char_u *p;
3662
3663 /*
3664 * May change home directory back to "~"
3665 */
3666 if (options & WILD_HOME_REPLACE)
3667 tilde_replace(str, numfiles, files);
3668
3669 if (options & WILD_ESCAPE)
3670 {
3671 if (xp->xp_context == EXPAND_FILES
3672 || xp->xp_context == EXPAND_SHELLCMD
3673 || xp->xp_context == EXPAND_BUFFERS
3674 || xp->xp_context == EXPAND_DIRECTORIES)
3675 {
3676 /*
3677 * Insert a backslash into a file name before a space, \, %, #
3678 * and wildmatch characters, except '~'.
3679 */
3680 for (i = 0; i < numfiles; ++i)
3681 {
3682 /* for ":set path=" we need to escape spaces twice */
3683 if (xp->xp_backslash == XP_BS_THREE)
3684 {
3685 p = vim_strsave_escaped(files[i], (char_u *)" ");
3686 if (p != NULL)
3687 {
3688 vim_free(files[i]);
3689 files[i] = p;
3690 #if defined(BACKSLASH_IN_FILENAME)
3691 p = vim_strsave_escaped(files[i], (char_u *)" ");
3692 if (p != NULL)
3693 {
3694 vim_free(files[i]);
3695 files[i] = p;
3696 }
3697 #endif
3698 }
3699 }
3700 #ifdef BACKSLASH_IN_FILENAME
3701 p = vim_strsave_fnameescape(files[i], FALSE);
3702 #else
3703 p = vim_strsave_fnameescape(files[i], xp->xp_shell);
3704 #endif
3705 if (p != NULL)
3706 {
3707 vim_free(files[i]);
3708 files[i] = p;
3709 }
3710
3711 /* If 'str' starts with "\~", replace "~" at start of
3712 * files[i] with "\~". */
3713 if (str[0] == '\\' && str[1] == '~' && files[i][0] == '~')
3714 escape_fname(&files[i]);
3715 }
3716 xp->xp_backslash = XP_BS_NONE;
3717
3718 /* If the first file starts with a '+' escape it. Otherwise it
3719 * could be seen as "+cmd". */
3720 if (*files[0] == '+')
3721 escape_fname(&files[0]);
3722 }
3723 else if (xp->xp_context == EXPAND_TAGS)
3724 {
3725 /*
3726 * Insert a backslash before characters in a tag name that
3727 * would terminate the ":tag" command.
3728 */
3729 for (i = 0; i < numfiles; ++i)
3730 {
3731 p = vim_strsave_escaped(files[i], (char_u *)"\\|\"");
3732 if (p != NULL)
3733 {
3734 vim_free(files[i]);
3735 files[i] = p;
3736 }
3737 }
3738 }
3739 }
3740 }
3741
3742 /*
3743 * Escape special characters in "fname" for when used as a file name argument
3744 * after a Vim command, or, when "shell" is non-zero, a shell command.
3745 * Returns the result in allocated memory.
3746 */
3747 char_u *
3748 vim_strsave_fnameescape(fname, shell)
3749 char_u *fname;
3750 int shell;
3751 {
3752 char_u *p;
3753 #ifdef BACKSLASH_IN_FILENAME
3754 char_u buf[20];
3755 int j = 0;
3756
3757 /* Don't escape '[' and '{' if they are in 'isfname'. */
3758 for (p = PATH_ESC_CHARS; *p != NUL; ++p)
3759 if ((*p != '[' && *p != '{') || !vim_isfilec(*p))
3760 buf[j++] = *p;
3761 buf[j] = NUL;
3762 p = vim_strsave_escaped(fname, buf);
3763 #else
3764 p = vim_strsave_escaped(fname, shell ? SHELL_ESC_CHARS : PATH_ESC_CHARS);
3765 if (shell && csh_like_shell() && p != NULL)
3766 {
3767 char_u *s;
3768
3769 /* For csh and similar shells need to put two backslashes before '!'.
3770 * One is taken by Vim, one by the shell. */
3771 s = vim_strsave_escaped(p, (char_u *)"!");
3772 vim_free(p);
3773 p = s;
3774 }
3775 #endif
3776
3777 /* '>' and '+' are special at the start of some commands, e.g. ":edit" and
3778 * ":write". "cd -" has a special meaning. */
3779 if (*p == '>' || *p == '+' || (*p == '-' && p[1] == NUL))
3780 escape_fname(&p);
3781
3782 return p;
3783 }
3784
3785 /*
3786 * Put a backslash before the file name in "pp", which is in allocated memory.
3787 */
3788 static void
3789 escape_fname(pp)
3790 char_u **pp;
3791 {
3792 char_u *p;
3793
3794 p = alloc((unsigned)(STRLEN(*pp) + 2));
3795 if (p != NULL)
3796 {
3797 p[0] = '\\';
3798 STRCPY(p + 1, *pp);
3799 vim_free(*pp);
3800 *pp = p;
3801 }
3802 }
3803
3804 /*
3805 * For each file name in files[num_files]:
3806 * If 'orig_pat' starts with "~/", replace the home directory with "~".
3807 */
3808 void
3809 tilde_replace(orig_pat, num_files, files)
3810 char_u *orig_pat;
3811 int num_files;
3812 char_u **files;
3813 {
3814 int i;
3815 char_u *p;
3816
3817 if (orig_pat[0] == '~' && vim_ispathsep(orig_pat[1]))
3818 {
3819 for (i = 0; i < num_files; ++i)
3820 {
3821 p = home_replace_save(NULL, files[i]);
3822 if (p != NULL)
3823 {
3824 vim_free(files[i]);
3825 files[i] = p;
3826 }
3827 }
3828 }
3829 }
3830
3831 /*
3832 * Show all matches for completion on the command line.
3833 * Returns EXPAND_NOTHING when the character that triggered expansion should
3834 * be inserted like a normal character.
3835 */
3836 static int
3837 showmatches(xp, wildmenu)
3838 expand_T *xp;
3839 int wildmenu UNUSED;
3840 {
3841 #define L_SHOWFILE(m) (showtail ? sm_gettail(files_found[m]) : files_found[m])
3842 int num_files;
3843 char_u **files_found;
3844 int i, j, k;
3845 int maxlen;
3846 int lines;
3847 int columns;
3848 char_u *p;
3849 int lastlen;
3850 int attr;
3851 int showtail;
3852
3853 if (xp->xp_numfiles == -1)
3854 {
3855 set_expand_context(xp);
3856 i = expand_cmdline(xp, ccline.cmdbuff, ccline.cmdpos,
3857 &num_files, &files_found);
3858 showtail = expand_showtail(xp);
3859 if (i != EXPAND_OK)
3860 return i;
3861
3862 }
3863 else
3864 {
3865 num_files = xp->xp_numfiles;
3866 files_found = xp->xp_files;
3867 showtail = cmd_showtail;
3868 }
3869
3870 #ifdef FEAT_WILDMENU
3871 if (!wildmenu)
3872 {
3873 #endif
3874 msg_didany = FALSE; /* lines_left will be set */
3875 msg_start(); /* prepare for paging */
3876 msg_putchar('\n');
3877 out_flush();
3878 cmdline_row = msg_row;
3879 msg_didany = FALSE; /* lines_left will be set again */
3880 msg_start(); /* prepare for paging */
3881 #ifdef FEAT_WILDMENU
3882 }
3883 #endif
3884
3885 if (got_int)
3886 got_int = FALSE; /* only int. the completion, not the cmd line */
3887 #ifdef FEAT_WILDMENU
3888 else if (wildmenu)
3889 win_redr_status_matches(xp, num_files, files_found, 0, showtail);
3890 #endif
3891 else
3892 {
3893 /* find the length of the longest file name */
3894 maxlen = 0;
3895 for (i = 0; i < num_files; ++i)
3896 {
3897 if (!showtail && (xp->xp_context == EXPAND_FILES
3898 || xp->xp_context == EXPAND_SHELLCMD
3899 || xp->xp_context == EXPAND_BUFFERS))
3900 {
3901 home_replace(NULL, files_found[i], NameBuff, MAXPATHL, TRUE);
3902 j = vim_strsize(NameBuff);
3903 }
3904 else
3905 j = vim_strsize(L_SHOWFILE(i));
3906 if (j > maxlen)
3907 maxlen = j;
3908 }
3909
3910 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3911 lines = num_files;
3912 else
3913 {
3914 /* compute the number of columns and lines for the listing */
3915 maxlen += 2; /* two spaces between file names */
3916 columns = ((int)Columns + 2) / maxlen;
3917 if (columns < 1)
3918 columns = 1;
3919 lines = (num_files + columns - 1) / columns;
3920 }
3921
3922 attr = hl_attr(HLF_D); /* find out highlighting for directories */
3923
3924 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3925 {
3926 MSG_PUTS_ATTR(_("tagname"), hl_attr(HLF_T));
3927 msg_clr_eos();
3928 msg_advance(maxlen - 3);
3929 MSG_PUTS_ATTR(_(" kind file\n"), hl_attr(HLF_T));
3930 }
3931
3932 /* list the files line by line */
3933 for (i = 0; i < lines; ++i)
3934 {
3935 lastlen = 999;
3936 for (k = i; k < num_files; k += lines)
3937 {
3938 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3939 {
3940 msg_outtrans_attr(files_found[k], hl_attr(HLF_D));
3941 p = files_found[k] + STRLEN(files_found[k]) + 1;
3942 msg_advance(maxlen + 1);
3943 msg_puts(p);
3944 msg_advance(maxlen + 3);
3945 msg_puts_long_attr(p + 2, hl_attr(HLF_D));
3946 break;
3947 }
3948 for (j = maxlen - lastlen; --j >= 0; )
3949 msg_putchar(' ');
3950 if (xp->xp_context == EXPAND_FILES
3951 || xp->xp_context == EXPAND_SHELLCMD
3952 || xp->xp_context == EXPAND_BUFFERS)
3953 {
3954 /* highlight directories */
3955 j = (mch_isdir(files_found[k]));
3956 if (showtail)
3957 p = L_SHOWFILE(k);
3958 else
3959 {
3960 home_replace(NULL, files_found[k], NameBuff, MAXPATHL,
3961 TRUE);
3962 p = NameBuff;
3963 }
3964 }
3965 else
3966 {
3967 j = FALSE;
3968 p = L_SHOWFILE(k);
3969 }
3970 lastlen = msg_outtrans_attr(p, j ? attr : 0);
3971 }
3972 if (msg_col > 0) /* when not wrapped around */
3973 {
3974 msg_clr_eos();
3975 msg_putchar('\n');
3976 }
3977 out_flush(); /* show one line at a time */
3978 if (got_int)
3979 {
3980 got_int = FALSE;
3981 break;
3982 }
3983 }
3984
3985 /*
3986 * we redraw the command below the lines that we have just listed
3987 * This is a bit tricky, but it saves a lot of screen updating.
3988 */
3989 cmdline_row = msg_row; /* will put it back later */
3990 }
3991
3992 if (xp->xp_numfiles == -1)
3993 FreeWild(num_files, files_found);
3994
3995 return EXPAND_OK;
3996 }
3997
3998 /*
3999 * Private gettail for showmatches() (and win_redr_status_matches()):
4000 * Find tail of file name path, but ignore trailing "/".
4001 */
4002 char_u *
4003 sm_gettail(s)
4004 char_u *s;
4005 {
4006 char_u *p;
4007 char_u *t = s;
4008 int had_sep = FALSE;
4009
4010 for (p = s; *p != NUL; )
4011 {
4012 if (vim_ispathsep(*p)
4013 #ifdef BACKSLASH_IN_FILENAME
4014 && !rem_backslash(p)
4015 #endif
4016 )
4017 had_sep = TRUE;
4018 else if (had_sep)
4019 {
4020 t = p;
4021 had_sep = FALSE;
4022 }
4023 mb_ptr_adv(p);
4024 }
4025 return t;
4026 }
4027
4028 /*
4029 * Return TRUE if we only need to show the tail of completion matches.
4030 * When not completing file names or there is a wildcard in the path FALSE is
4031 * returned.
4032 */
4033 static int
4034 expand_showtail(xp)
4035 expand_T *xp;
4036 {
4037 char_u *s;
4038 char_u *end;
4039
4040 /* When not completing file names a "/" may mean something different. */
4041 if (xp->xp_context != EXPAND_FILES
4042 && xp->xp_context != EXPAND_SHELLCMD
4043 && xp->xp_context != EXPAND_DIRECTORIES)
4044 return FALSE;
4045
4046 end = gettail(xp->xp_pattern);
4047 if (end == xp->xp_pattern) /* there is no path separator */
4048 return FALSE;
4049
4050 for (s = xp->xp_pattern; s < end; s++)
4051 {
4052 /* Skip escaped wildcards. Only when the backslash is not a path
4053 * separator, on DOS the '*' "path\*\file" must not be skipped. */
4054 if (rem_backslash(s))
4055 ++s;
4056 else if (vim_strchr((char_u *)"*?[", *s) != NULL)
4057 return FALSE;
4058 }
4059 return TRUE;
4060 }
4061
4062 /*
4063 * Prepare a string for expansion.
4064 * When expanding file names: The string will be used with expand_wildcards().
4065 * Copy the file name into allocated memory and add a '*' at the end.
4066 * When expanding other names: The string will be used with regcomp(). Copy
4067 * the name into allocated memory and prepend "^".
4068 */
4069 char_u *
4070 addstar(fname, len, context)
4071 char_u *fname;
4072 int len;
4073 int context; /* EXPAND_FILES etc. */
4074 {
4075 char_u *retval;
4076 int i, j;
4077 int new_len;
4078 char_u *tail;
4079
4080 if (context != EXPAND_FILES
4081 && context != EXPAND_SHELLCMD
4082 && context != EXPAND_DIRECTORIES)
4083 {
4084 /*
4085 * Matching will be done internally (on something other than files).
4086 * So we convert the file-matching-type wildcards into our kind for
4087 * use with vim_regcomp(). First work out how long it will be:
4088 */
4089
4090 /* For help tags the translation is done in find_help_tags().
4091 * For a tag pattern starting with "/" no translation is needed. */
4092 if (context == EXPAND_HELP
4093 || context == EXPAND_COLORS
4094 || context == EXPAND_COMPILER
4095 || (context == EXPAND_TAGS && fname[0] == '/'))
4096 retval = vim_strnsave(fname, len);
4097 else
4098 {
4099 new_len = len + 2; /* +2 for '^' at start, NUL at end */
4100 for (i = 0; i < len; i++)
4101 {
4102 if (fname[i] == '*' || fname[i] == '~')
4103 new_len++; /* '*' needs to be replaced by ".*"
4104 '~' needs to be replaced by "\~" */
4105
4106 /* Buffer names are like file names. "." should be literal */
4107 if (context == EXPAND_BUFFERS && fname[i] == '.')
4108 new_len++; /* "." becomes "\." */
4109
4110 /* Custom expansion takes care of special things, match
4111 * backslashes literally (perhaps also for other types?) */
4112 if ((context == EXPAND_USER_DEFINED
4113 || context == EXPAND_USER_LIST) && fname[i] == '\\')
4114 new_len++; /* '\' becomes "\\" */
4115 }
4116 retval = alloc(new_len);
4117 if (retval != NULL)
4118 {
4119 retval[0] = '^';
4120 j = 1;
4121 for (i = 0; i < len; i++, j++)
4122 {
4123 /* Skip backslash. But why? At least keep it for custom
4124 * expansion. */
4125 if (context != EXPAND_USER_DEFINED
4126 && context != EXPAND_USER_LIST
4127 && fname[i] == '\\'
4128 && ++i == len)
4129 break;
4130
4131 switch (fname[i])
4132 {
4133 case '*': retval[j++] = '.';
4134 break;
4135 case '~': retval[j++] = '\\';
4136 break;
4137 case '?': retval[j] = '.';
4138 continue;
4139 case '.': if (context == EXPAND_BUFFERS)
4140 retval[j++] = '\\';
4141 break;
4142 case '\\': if (context == EXPAND_USER_DEFINED
4143 || context == EXPAND_USER_LIST)
4144 retval[j++] = '\\';
4145 break;
4146 }
4147 retval[j] = fname[i];
4148 }
4149 retval[j] = NUL;
4150 }
4151 }
4152 }
4153 else
4154 {
4155 retval = alloc(len + 4);
4156 if (retval != NULL)
4157 {
4158 vim_strncpy(retval, fname, len);
4159
4160 /*
4161 * Don't add a star to *, ~, ~user, $var or `cmd`.
4162 * * would become **, which walks the whole tree.
4163 * ~ would be at the start of the file name, but not the tail.
4164 * $ could be anywhere in the tail.
4165 * ` could be anywhere in the file name.
4166 * When the name ends in '$' don't add a star, remove the '$'.
4167 */
4168 tail = gettail(retval);
4169 if ((*retval != '~' || tail != retval)
4170 && (len == 0 || retval[len - 1] != '*')
4171 && vim_strchr(tail, '$') == NULL
4172 && vim_strchr(retval, '`') == NULL)
4173 retval[len++] = '*';
4174 else if (len > 0 && retval[len - 1] == '$')
4175 --len;
4176 retval[len] = NUL;
4177 }
4178 }
4179 return retval;
4180 }
4181
4182 /*
4183 * Must parse the command line so far to work out what context we are in.
4184 * Completion can then be done based on that context.
4185 * This routine sets the variables:
4186 * xp->xp_pattern The start of the pattern to be expanded within
4187 * the command line (ends at the cursor).
4188 * xp->xp_context The type of thing to expand. Will be one of:
4189 *
4190 * EXPAND_UNSUCCESSFUL Used sometimes when there is something illegal on
4191 * the command line, like an unknown command. Caller
4192 * should beep.
4193 * EXPAND_NOTHING Unrecognised context for completion, use char like
4194 * a normal char, rather than for completion. eg
4195 * :s/^I/
4196 * EXPAND_COMMANDS Cursor is still touching the command, so complete
4197 * it.
4198 * EXPAND_BUFFERS Complete file names for :buf and :sbuf commands.
4199 * EXPAND_FILES After command with XFILE set, or after setting
4200 * with P_EXPAND set. eg :e ^I, :w>>^I
4201 * EXPAND_DIRECTORIES In some cases this is used instead of the latter
4202 * when we know only directories are of interest. eg
4203 * :set dir=^I
4204 * EXPAND_SHELLCMD After ":!cmd", ":r !cmd" or ":w !cmd".
4205 * EXPAND_SETTINGS Complete variable names. eg :set d^I
4206 * EXPAND_BOOL_SETTINGS Complete boolean variables only, eg :set no^I
4207 * EXPAND_TAGS Complete tags from the files in p_tags. eg :ta a^I
4208 * EXPAND_TAGS_LISTFILES As above, but list filenames on ^D, after :tselect
4209 * EXPAND_HELP Complete tags from the file 'helpfile'/tags
4210 * EXPAND_EVENTS Complete event names
4211 * EXPAND_SYNTAX Complete :syntax command arguments
4212 * EXPAND_HIGHLIGHT Complete highlight (syntax) group names
4213 * EXPAND_AUGROUP Complete autocommand group names
4214 * EXPAND_USER_VARS Complete user defined variable names, eg :unlet a^I
4215 * EXPAND_MAPPINGS Complete mapping and abbreviation names,
4216 * eg :unmap a^I , :cunab x^I
4217 * EXPAND_FUNCTIONS Complete internal or user defined function names,
4218 * eg :call sub^I
4219 * EXPAND_USER_FUNC Complete user defined function names, eg :delf F^I
4220 * EXPAND_EXPRESSION Complete internal or user defined function/variable
4221 * names in expressions, eg :while s^I
4222 * EXPAND_ENV_VARS Complete environment variable names
4223 */
4224 static void
4225 set_expand_context(xp)
4226 expand_T *xp;
4227 {
4228 /* only expansion for ':', '>' and '=' command-lines */
4229 if (ccline.cmdfirstc != ':'
4230 #ifdef FEAT_EVAL
4231 && ccline.cmdfirstc != '>' && ccline.cmdfirstc != '='
4232 && !ccline.input_fn
4233 #endif
4234 )
4235 {
4236 xp->xp_context = EXPAND_NOTHING;
4237 return;
4238 }
4239 set_cmd_context(xp, ccline.cmdbuff, ccline.cmdlen, ccline.cmdpos);
4240 }
4241
4242 void
4243 set_cmd_context(xp, str, len, col)
4244 expand_T *xp;
4245 char_u *str; /* start of command line */
4246 int len; /* length of command line (excl. NUL) */
4247 int col; /* position of cursor */
4248 {
4249 int old_char = NUL;
4250 char_u *nextcomm;
4251
4252 /*
4253 * Avoid a UMR warning from Purify, only save the character if it has been
4254 * written before.
4255 */
4256 if (col < len)
4257 old_char = str[col];
4258 str[col] = NUL;
4259 nextcomm = str;
4260
4261 #ifdef FEAT_EVAL
4262 if (ccline.cmdfirstc == '=')
4263 {
4264 # ifdef FEAT_CMDL_COMPL
4265 /* pass CMD_SIZE because there is no real command */
4266 set_context_for_expression(xp, str, CMD_SIZE);
4267 # endif
4268 }
4269 else if (ccline.input_fn)
4270 {
4271 xp->xp_context = ccline.xp_context;
4272 xp->xp_pattern = ccline.cmdbuff;
4273 # if defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)
4274 xp->xp_arg = ccline.xp_arg;
4275 # endif
4276 }
4277 else
4278 #endif
4279 while (nextcomm != NULL)
4280 nextcomm = set_one_cmd_context(xp, nextcomm);
4281
4282 str[col] = old_char;
4283 }
4284
4285 /*
4286 * Expand the command line "str" from context "xp".
4287 * "xp" must have been set by set_cmd_context().
4288 * xp->xp_pattern points into "str", to where the text that is to be expanded
4289 * starts.
4290 * Returns EXPAND_UNSUCCESSFUL when there is something illegal before the
4291 * cursor.
4292 * Returns EXPAND_NOTHING when there is nothing to expand, might insert the
4293 * key that triggered expansion literally.
4294 * Returns EXPAND_OK otherwise.
4295 */
4296 int
4297 expand_cmdline(xp, str, col, matchcount, matches)
4298 expand_T *xp;
4299 char_u *str; /* start of command line */
4300 int col; /* position of cursor */
4301 int *matchcount; /* return: nr of matches */
4302 char_u ***matches; /* return: array of pointers to matches */
4303 {
4304 char_u *file_str = NULL;
4305
4306 if (xp->xp_context == EXPAND_UNSUCCESSFUL)
4307 {
4308 beep_flush();
4309 return EXPAND_UNSUCCESSFUL; /* Something illegal on command line */
4310 }
4311 if (xp->xp_context == EXPAND_NOTHING)
4312 {
4313 /* Caller can use the character as a normal char instead */
4314 return EXPAND_NOTHING;
4315 }
4316
4317 /* add star to file name, or convert to regexp if not exp. files. */
4318 xp->xp_pattern_len = (int)(str + col - xp->xp_pattern);
4319 file_str = addstar(xp->xp_pattern, xp->xp_pattern_len, xp->xp_context);
4320 if (file_str == NULL)
4321 return EXPAND_UNSUCCESSFUL;
4322
4323 /* find all files that match the description */
4324 if (ExpandFromContext(xp, file_str, matchcount, matches,
4325 WILD_ADD_SLASH|WILD_SILENT) == FAIL)
4326 {
4327 *matchcount = 0;
4328 *matches = NULL;
4329 }
4330 vim_free(file_str);
4331
4332 return EXPAND_OK;
4333 }
4334
4335 #ifdef FEAT_MULTI_LANG
4336 /*
4337 * Cleanup matches for help tags: remove "@en" if "en" is the only language.
4338 */
4339 static void cleanup_help_tags __ARGS((int num_file, char_u **file));
4340
4341 static void
4342 cleanup_help_tags(num_file, file)
4343 int num_file;
4344 char_u **file;
4345 {
4346 int i, j;
4347 int len;
4348
4349 for (i = 0; i < num_file; ++i)
4350 {
4351 len = (int)STRLEN(file[i]) - 3;
4352 if (len > 0 && STRCMP(file[i] + len, "@en") == 0)
4353 {
4354 /* Sorting on priority means the same item in another language may
4355 * be anywhere. Search all items for a match up to the "@en". */
4356 for (j = 0; j < num_file; ++j)
4357 if (j != i
4358 && (int)STRLEN(file[j]) == len + 3
4359 && STRNCMP(file[i], file[j], len + 1) == 0)
4360 break;
4361 if (j == num_file)
4362 file[i][len] = NUL;
4363 }
4364 }
4365 }
4366 #endif
4367
4368 /*
4369 * Do the expansion based on xp->xp_context and "pat".
4370 */
4371 static int
4372 ExpandFromContext(xp, pat, num_file, file, options)
4373 expand_T *xp;
4374 char_u *pat;
4375 int *num_file;
4376 char_u ***file;
4377 int options;
4378 {
4379 #ifdef FEAT_CMDL_COMPL
4380 regmatch_T regmatch;
4381 #endif
4382 int ret;
4383 int flags;
4384
4385 flags = EW_DIR; /* include directories */
4386 if (options & WILD_LIST_NOTFOUND)
4387 flags |= EW_NOTFOUND;
4388 if (options & WILD_ADD_SLASH)
4389 flags |= EW_ADDSLASH;
4390 if (options & WILD_KEEP_ALL)
4391 flags |= EW_KEEPALL;
4392 if (options & WILD_SILENT)
4393 flags |= EW_SILENT;
4394
4395 if (xp->xp_context == EXPAND_FILES || xp->xp_context == EXPAND_DIRECTORIES)
4396 {
4397 /*
4398 * Expand file or directory names.
4399 */
4400 int free_pat = FALSE;
4401 int i;
4402
4403 /* for ":set path=" and ":set tags=" halve backslashes for escaped
4404 * space */
4405 if (xp->xp_backslash != XP_BS_NONE)
4406 {
4407 free_pat = TRUE;
4408 pat = vim_strsave(pat);
4409 for (i = 0; pat[i]; ++i)
4410 if (pat[i] == '\\')
4411 {
4412 if (xp->xp_backslash == XP_BS_THREE
4413 && pat[i + 1] == '\\'
4414 && pat[i + 2] == '\\'
4415 && pat[i + 3] == ' ')
4416 STRMOVE(pat + i, pat + i + 3);
4417 if (xp->xp_backslash == XP_BS_ONE
4418 && pat[i + 1] == ' ')
4419 STRMOVE(pat + i, pat + i + 1);
4420 }
4421 }
4422
4423 if (xp->xp_context == EXPAND_FILES)
4424 flags |= EW_FILE;
4425 else
4426 flags = (flags | EW_DIR) & ~EW_FILE;
4427 /* Expand wildcards, supporting %:h and the like. */
4428 ret = expand_wildcards_eval(&pat, num_file, file, flags);
4429 if (free_pat)
4430 vim_free(pat);
4431 return ret;
4432 }
4433
4434 *file = (char_u **)"";
4435 *num_file = 0;
4436 if (xp->xp_context == EXPAND_HELP)
4437 {
4438 /* With an empty argument we would get all the help tags, which is
4439 * very slow. Get matches for "help" instead. */
4440 if (find_help_tags(*pat == NUL ? (char_u *)"help" : pat,
4441 num_file, file, FALSE) == OK)
4442 {
4443 #ifdef FEAT_MULTI_LANG
4444 cleanup_help_tags(*num_file, *file);
4445 #endif
4446 return OK;
4447 }
4448 return FAIL;
4449 }
4450
4451 #ifndef FEAT_CMDL_COMPL
4452 return FAIL;
4453 #else
4454 if (xp->xp_context == EXPAND_SHELLCMD)
4455 return expand_shellcmd(pat, num_file, file, flags);
4456 if (xp->xp_context == EXPAND_OLD_SETTING)
4457 return ExpandOldSetting(num_file, file);
4458 if (xp->xp_context == EXPAND_BUFFERS)
4459 return ExpandBufnames(pat, num_file, file, options);
4460 if (xp->xp_context == EXPAND_TAGS
4461 || xp->xp_context == EXPAND_TAGS_LISTFILES)
4462 return expand_tags(xp->xp_context == EXPAND_TAGS, pat, num_file, file);
4463 if (xp->xp_context == EXPAND_COLORS)
4464 return ExpandRTDir(pat, num_file, file, "colors");
4465 if (xp->xp_context == EXPAND_COMPILER)
4466 return ExpandRTDir(pat, num_file, file, "compiler");
4467 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4468 if (xp->xp_context == EXPAND_USER_LIST)
4469 return ExpandUserList(xp, num_file, file);
4470 # endif
4471
4472 regmatch.regprog = vim_regcomp(pat, p_magic ? RE_MAGIC : 0);
4473 if (regmatch.regprog == NULL)
4474 return FAIL;
4475
4476 /* set ignore-case according to p_ic, p_scs and pat */
4477 regmatch.rm_ic = ignorecase(pat);
4478
4479 if (xp->xp_context == EXPAND_SETTINGS
4480 || xp->xp_context == EXPAND_BOOL_SETTINGS)
4481 ret = ExpandSettings(xp, &regmatch, num_file, file);
4482 else if (xp->xp_context == EXPAND_MAPPINGS)
4483 ret = ExpandMappings(&regmatch, num_file, file);
4484 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4485 else if (xp->xp_context == EXPAND_USER_DEFINED)
4486 ret = ExpandUserDefined(xp, &regmatch, num_file, file);
4487 # endif
4488 else
4489 {
4490 static struct expgen
4491 {
4492 int context;
4493 char_u *((*func)__ARGS((expand_T *, int)));
4494 int ic;
4495 } tab[] =
4496 {
4497 {EXPAND_COMMANDS, get_command_name, FALSE},
4498 #ifdef FEAT_USR_CMDS
4499 {EXPAND_USER_COMMANDS, get_user_commands, FALSE},
4500 {EXPAND_USER_CMD_FLAGS, get_user_cmd_flags, FALSE},
4501 {EXPAND_USER_NARGS, get_user_cmd_nargs, FALSE},
4502 {EXPAND_USER_COMPLETE, get_user_cmd_complete, FALSE},
4503 #endif
4504 #ifdef FEAT_EVAL
4505 {EXPAND_USER_VARS, get_user_var_name, FALSE},
4506 {EXPAND_FUNCTIONS, get_function_name, FALSE},
4507 {EXPAND_USER_FUNC, get_user_func_name, FALSE},
4508 {EXPAND_EXPRESSION, get_expr_name, FALSE},
4509 #endif
4510 #ifdef FEAT_MENU
4511 {EXPAND_MENUS, get_menu_name, FALSE},
4512 {EXPAND_MENUNAMES, get_menu_names, FALSE},
4513 #endif
4514 #ifdef FEAT_SYN_HL
4515 {EXPAND_SYNTAX, get_syntax_name, TRUE},
4516 #endif
4517 {EXPAND_HIGHLIGHT, get_highlight_name, TRUE},
4518 #ifdef FEAT_AUTOCMD
4519 {EXPAND_EVENTS, get_event_name, TRUE},
4520 {EXPAND_AUGROUP, get_augroup_name, TRUE},
4521 #endif
4522 #ifdef FEAT_CSCOPE
4523 {EXPAND_CSCOPE, get_cscope_name, TRUE},
4524 #endif
4525 #ifdef FEAT_SIGNS
4526 {EXPAND_SIGN, get_sign_name, TRUE},
4527 #endif
4528 #ifdef FEAT_PROFILE
4529 {EXPAND_PROFILE, get_profile_name, TRUE},
4530 #endif
4531 #if (defined(HAVE_LOCALE_H) || defined(X_LOCALE)) \
4532 && (defined(FEAT_GETTEXT) || defined(FEAT_MBYTE))
4533 {EXPAND_LANGUAGE, get_lang_arg, TRUE},
4534 #endif
4535 {EXPAND_ENV_VARS, get_env_name, TRUE},
4536 #ifdef FEAT_GUI_MACVIM
4537 {EXPAND_MACACTION, get_macaction_name, FALSE},
4538 #endif
4539 };
4540 int i;
4541
4542 /*
4543 * Find a context in the table and call the ExpandGeneric() with the
4544 * right function to do the expansion.
4545 */
4546 ret = FAIL;
4547 for (i = 0; i < (int)(sizeof(tab) / sizeof(struct expgen)); ++i)
4548 if (xp->xp_context == tab[i].context)
4549 {
4550 if (tab[i].ic)
4551 regmatch.rm_ic = TRUE;
4552 ret = ExpandGeneric(xp, &regmatch, num_file, file, tab[i].func);
4553 break;
4554 }
4555 }
4556
4557 vim_free(regmatch.regprog);
4558
4559 return ret;
4560 #endif /* FEAT_CMDL_COMPL */
4561 }
4562
4563 #if defined(FEAT_CMDL_COMPL) || defined(PROTO)
4564 /*
4565 * Expand a list of names.
4566 *
4567 * Generic function for command line completion. It calls a function to
4568 * obtain strings, one by one. The strings are matched against a regexp
4569 * program. Matching strings are copied into an array, which is returned.
4570 *
4571 * Returns OK when no problems encountered, FAIL for error (out of memory).
4572 */
4573 int
4574 ExpandGeneric(xp, regmatch, num_file, file, func)
4575 expand_T *xp;
4576 regmatch_T *regmatch;
4577 int *num_file;
4578 char_u ***file;
4579 char_u *((*func)__ARGS((expand_T *, int)));
4580 /* returns a string from the list */
4581 {
4582 int i;
4583 int count = 0;
4584 int round;
4585 char_u *str;
4586
4587 /* do this loop twice:
4588 * round == 0: count the number of matching names
4589 * round == 1: copy the matching names into allocated memory
4590 */
4591 for (round = 0; round <= 1; ++round)
4592 {
4593 for (i = 0; ; ++i)
4594 {
4595 str = (*func)(xp, i);
4596 if (str == NULL) /* end of list */
4597 break;
4598 if (*str == NUL) /* skip empty strings */
4599 continue;
4600
4601 if (vim_regexec(regmatch, str, (colnr_T)0))
4602 {
4603 if (round)
4604 {
4605 str = vim_strsave_escaped(str, (char_u *)" \t\\.");
4606 (*file)[count] = str;
4607 #ifdef FEAT_MENU
4608 if (func == get_menu_names && str != NULL)
4609 {
4610 /* test for separator added by get_menu_names() */
4611 str += STRLEN(str) - 1;
4612 if (*str == '\001')
4613 *str = '.';
4614 }
4615 #endif
4616 }
4617 ++count;
4618 }
4619 }
4620 if (round == 0)
4621 {
4622 if (count == 0)
4623 return OK;
4624 *num_file = count;
4625 *file = (char_u **)alloc((unsigned)(count * sizeof(char_u *)));
4626 if (*file == NULL)
4627 {
4628 *file = (char_u **)"";
4629 return FAIL;
4630 }
4631 count = 0;
4632 }
4633 }
4634
4635 /* Sort the results. Keep menu's in the specified order. */
4636 if (xp->xp_context != EXPAND_MENUNAMES && xp->xp_context != EXPAND_MENUS)
4637 sort_strings(*file, *num_file);
4638
4639 #ifdef FEAT_CMDL_COMPL
4640 /* Reset the variables used for special highlight names expansion, so that
4641 * they don't show up when getting normal highlight names by ID. */
4642 reset_expand_highlight();
4643 #endif
4644
4645 return OK;
4646 }
4647
4648 /*
4649 * Complete a shell command.
4650 * Returns FAIL or OK;
4651 */
4652 static int
4653 expand_shellcmd(filepat, num_file, file, flagsarg)
4654 char_u *filepat; /* pattern to match with command names */
4655 int *num_file; /* return: number of matches */
4656 char_u ***file; /* return: array with matches */
4657 int flagsarg; /* EW_ flags */
4658 {
4659 char_u *pat;
4660 int i;
4661 char_u *path;
4662 int mustfree = FALSE;
4663 garray_T ga;
4664 char_u *buf = alloc(MAXPATHL);
4665 size_t l;
4666 char_u *s, *e;
4667 int flags = flagsarg;
4668 int ret;
4669
4670 if (buf == NULL)
4671 return FAIL;
4672
4673 /* for ":set path=" and ":set tags=" halve backslashes for escaped
4674 * space */
4675 pat = vim_strsave(filepat);
4676 for (i = 0; pat[i]; ++i)
4677 if (pat[i] == '\\' && pat[i + 1] == ' ')
4678 STRMOVE(pat + i, pat + i + 1);
4679
4680 flags |= EW_FILE | EW_EXEC;
4681
4682 /* For an absolute name we don't use $PATH. */
4683 if (mch_isFullName(pat))
4684 path = (char_u *)" ";
4685 else if ((pat[0] == '.' && (vim_ispathsep(pat[1])
4686 || (pat[1] == '.' && vim_ispathsep(pat[2])))))
4687 path = (char_u *)".";
4688 else
4689 path = vim_getenv((char_u *)"PATH", &mustfree);
4690
4691 /*
4692 * Go over all directories in $PATH. Expand matches in that directory and
4693 * collect them in "ga".
4694 */
4695 ga_init2(&ga, (int)sizeof(char *), 10);
4696 for (s = path; *s != NUL; s = e)
4697 {
4698 if (*s == ' ')
4699 ++s; /* Skip space used for absolute path name. */
4700
4701 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
4702 e = vim_strchr(s, ';');
4703 #else
4704 e = vim_strchr(s, ':');
4705 #endif
4706 if (e == NULL)
4707 e = s + STRLEN(s);
4708
4709 l = e - s;
4710 if (l > MAXPATHL - 5)
4711 break;
4712 vim_strncpy(buf, s, l);
4713 add_pathsep(buf);
4714 l = STRLEN(buf);
4715 vim_strncpy(buf + l, pat, MAXPATHL - 1 - l);
4716
4717 /* Expand matches in one directory of $PATH. */
4718 ret = expand_wildcards(1, &buf, num_file, file, flags);
4719 if (ret == OK)
4720 {
4721 if (ga_grow(&ga, *num_file) == FAIL)
4722 FreeWild(*num_file, *file);
4723 else
4724 {
4725 for (i = 0; i < *num_file; ++i)
4726 {
4727 s = (*file)[i];
4728 if (STRLEN(s) > l)
4729 {
4730 /* Remove the path again. */
4731 STRMOVE(s, s + l);
4732 ((char_u **)ga.ga_data)[ga.ga_len++] = s;
4733 }
4734 else
4735 vim_free(s);
4736 }
4737 vim_free(*file);
4738 }
4739 }
4740 if (*e != NUL)
4741 ++e;
4742 }
4743 *file = ga.ga_data;
4744 *num_file = ga.ga_len;
4745
4746 vim_free(buf);
4747 vim_free(pat);
4748 if (mustfree)
4749 vim_free(path);
4750 return OK;
4751 }
4752
4753
4754 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4755 static void * call_user_expand_func __ARGS((void *(*user_expand_func) __ARGS((char_u *, int, char_u **, int)), expand_T *xp, int *num_file, char_u ***file));
4756
4757 /*
4758 * Call "user_expand_func()" to invoke a user defined VimL function and return
4759 * the result (either a string or a List).
4760 */
4761 static void *
4762 call_user_expand_func(user_expand_func, xp, num_file, file)
4763 void *(*user_expand_func) __ARGS((char_u *, int, char_u **, int));
4764 expand_T *xp;
4765 int *num_file;
4766 char_u ***file;
4767 {
4768 char_u keep;
4769 char_u num[50];
4770 char_u *args[3];
4771 int save_current_SID = current_SID;
4772 void *ret;
4773 struct cmdline_info save_ccline;
4774
4775 if (xp->xp_arg == NULL || xp->xp_arg[0] == '\0')
4776 return NULL;
4777 *num_file = 0;
4778 *file = NULL;
4779
4780 if (ccline.cmdbuff == NULL)
4781 {
4782 /* Completion from Insert mode, pass fake arguments. */
4783 keep = 0;
4784 sprintf((char *)num, "%d", (int)STRLEN(xp->xp_pattern));
4785 args[1] = xp->xp_pattern;
4786 }
4787 else
4788 {
4789 /* Completion on the command line, pass real arguments. */
4790 keep = ccline.cmdbuff[ccline.cmdlen];
4791 ccline.cmdbuff[ccline.cmdlen] = 0;
4792 sprintf((char *)num, "%d", ccline.cmdpos);
4793 args[1] = ccline.cmdbuff;
4794 }
4795 args[0] = vim_strnsave(xp->xp_pattern, xp->xp_pattern_len);
4796 args[2] = num;
4797
4798 /* Save the cmdline, we don't know what the function may do. */
4799 save_ccline = ccline;
4800 ccline.cmdbuff = NULL;
4801 ccline.cmdprompt = NULL;
4802 current_SID = xp->xp_scriptID;
4803
4804 ret = user_expand_func(xp->xp_arg, 3, args, FALSE);
4805
4806 ccline = save_ccline;
4807 current_SID = save_current_SID;
4808 if (ccline.cmdbuff != NULL)
4809 ccline.cmdbuff[ccline.cmdlen] = keep;
4810
4811 vim_free(args[0]);
4812 return ret;
4813 }
4814
4815 /*
4816 * Expand names with a function defined by the user.
4817 */
4818 static int
4819 ExpandUserDefined(xp, regmatch, num_file, file)
4820 expand_T *xp;
4821 regmatch_T *regmatch;
4822 int *num_file;
4823 char_u ***file;
4824 {
4825 char_u *retstr;
4826 char_u *s;
4827 char_u *e;
4828 char_u keep;
4829 garray_T ga;
4830
4831 retstr = call_user_expand_func(call_func_retstr, xp, num_file, file);
4832 if (retstr == NULL)
4833 return FAIL;
4834
4835 ga_init2(&ga, (int)sizeof(char *), 3);
4836 for (s = retstr; *s != NUL; s = e)
4837 {
4838 e = vim_strchr(s, '\n');
4839 if (e == NULL)
4840 e = s + STRLEN(s);
4841 keep = *e;
4842 *e = 0;
4843
4844 if (xp->xp_pattern[0] && vim_regexec(regmatch, s, (colnr_T)0) == 0)
4845 {
4846 *e = keep;
4847 if (*e != NUL)
4848 ++e;
4849 continue;
4850 }
4851
4852 if (ga_grow(&ga, 1) == FAIL)
4853 break;
4854
4855 ((char_u **)ga.ga_data)[ga.ga_len] = vim_strnsave(s, (int)(e - s));
4856 ++ga.ga_len;
4857
4858 *e = keep;
4859 if (*e != NUL)
4860 ++e;
4861 }
4862 vim_free(retstr);
4863 *file = ga.ga_data;
4864 *num_file = ga.ga_len;
4865 return OK;
4866 }
4867
4868 /*
4869 * Expand names with a list returned by a function defined by the user.
4870 */
4871 static int
4872 ExpandUserList(xp, num_file, file)
4873 expand_T *xp;
4874 int *num_file;
4875 char_u ***file;
4876 {
4877 list_T *retlist;
4878 listitem_T *li;
4879 garray_T ga;
4880
4881 retlist = call_user_expand_func(call_func_retlist, xp, num_file, file);
4882 if (retlist == NULL)
4883 return FAIL;
4884
4885 ga_init2(&ga, (int)sizeof(char *), 3);
4886 /* Loop over the items in the list. */
4887 for (li = retlist->lv_first; li != NULL; li = li->li_next)
4888 {
4889 if (li->li_tv.v_type != VAR_STRING || li->li_tv.vval.v_string == NULL)
4890 continue; /* Skip non-string items and empty strings */
4891
4892 if (ga_grow(&ga, 1) == FAIL)
4893 break;
4894
4895 ((char_u **)ga.ga_data)[ga.ga_len] =
4896 vim_strsave(li->li_tv.vval.v_string);
4897 ++ga.ga_len;
4898 }
4899 list_unref(retlist);
4900
4901 *file = ga.ga_data;
4902 *num_file = ga.ga_len;
4903 return OK;
4904 }
4905 #endif
4906
4907 /*
4908 * Expand color scheme names: 'runtimepath'/colors/{pat}.vim
4909 * or compiler names.
4910 */
4911 static int
4912 ExpandRTDir(pat, num_file, file, dirname)
4913 char_u *pat;
4914 int *num_file;
4915 char_u ***file;
4916 char *dirname; /* "colors" or "compiler" */
4917 {
4918 char_u *all;
4919 char_u *s;
4920 char_u *e;
4921 garray_T ga;
4922
4923 *num_file = 0;
4924 *file = NULL;
4925 s = alloc((unsigned)(STRLEN(pat) + STRLEN(dirname) + 7));
4926 if (s == NULL)
4927 return FAIL;
4928 sprintf((char *)s, "%s/%s*.vim", dirname, pat);
4929 all = globpath(p_rtp, s, 0);
4930 vim_free(s);
4931 if (all == NULL)
4932 return FAIL;
4933
4934 ga_init2(&ga, (int)sizeof(char *), 3);
4935 for (s = all; *s != NUL; s = e)
4936 {
4937 e = vim_strchr(s, '\n');
4938 if (e == NULL)
4939 e = s + STRLEN(s);
4940 if (ga_grow(&ga, 1) == FAIL)
4941 break;
4942 if (e - 4 > s && STRNICMP(e - 4, ".vim", 4) == 0)
4943 {
4944 for (s = e - 4; s > all; mb_ptr_back(all, s))
4945 if (*s == '\n' || vim_ispathsep(*s))
4946 break;
4947 ++s;
4948 ((char_u **)ga.ga_data)[ga.ga_len] =
4949 vim_strnsave(s, (int)(e - s - 4));
4950 ++ga.ga_len;
4951 }
4952 if (*e != NUL)
4953 ++e;
4954 }
4955 vim_free(all);
4956 *file = ga.ga_data;
4957 *num_file = ga.ga_len;
4958 return OK;
4959 }
4960
4961 #endif
4962
4963 #if defined(FEAT_CMDL_COMPL) || defined(FEAT_EVAL) || defined(PROTO)
4964 /*
4965 * Expand "file" for all comma-separated directories in "path".
4966 * Returns an allocated string with all matches concatenated, separated by
4967 * newlines. Returns NULL for an error or no matches.
4968 */
4969 char_u *
4970 globpath(path, file, expand_options)
4971 char_u *path;
4972 char_u *file;
4973 int expand_options;
4974 {
4975 expand_T xpc;
4976 char_u *buf;
4977 garray_T ga;
4978 int i;
4979 int len;
4980 int num_p;
4981 char_u **p;
4982 char_u *cur = NULL;
4983
4984 buf = alloc(MAXPATHL);
4985 if (buf == NULL)
4986 return NULL;
4987
4988 ExpandInit(&xpc);
4989 xpc.xp_context = EXPAND_FILES;
4990
4991 ga_init2(&ga, 1, 100);
4992
4993 /* Loop over all entries in {path}. */
4994 while (*path != NUL)
4995 {
4996 /* Copy one item of the path to buf[] and concatenate the file name. */
4997 copy_option_part(&path, buf, MAXPATHL, ",");
4998 if (STRLEN(buf) + STRLEN(file) + 2 < MAXPATHL)
4999 {
5000 add_pathsep(buf);
5001 STRCAT(buf, file);
5002 if (ExpandFromContext(&xpc, buf, &num_p, &p,
5003 WILD_SILENT|expand_options) != FAIL && num_p > 0)
5004 {
5005 ExpandEscape(&xpc, buf, num_p, p, WILD_SILENT|expand_options);
5006 for (len = 0, i = 0; i < num_p; ++i)
5007 len += (int)STRLEN(p[i]) + 1;
5008
5009 /* Concatenate new results to previous ones. */
5010 if (ga_grow(&ga, len) == OK)
5011 {
5012 cur = (char_u *)ga.ga_data + ga.ga_len;
5013 for (i = 0; i < num_p; ++i)
5014 {
5015 STRCPY(cur, p[i]);
5016 cur += STRLEN(p[i]);
5017 *cur++ = '\n';
5018 }
5019 ga.ga_len += len;
5020 }
5021 FreeWild(num_p, p);
5022 }
5023 }
5024 }
5025 if (cur != NULL)
5026 *--cur = 0; /* Replace trailing newline with NUL */
5027
5028 vim_free(buf);
5029 return (char_u *)ga.ga_data;
5030 }
5031
5032 #endif
5033
5034 #if defined(FEAT_CMDHIST) || defined(PROTO)
5035
5036 /*********************************
5037 * Command line history stuff *
5038 *********************************/
5039
5040 /*
5041 * Translate a history character to the associated type number.
5042 */
5043 static int
5044 hist_char2type(c)
5045 int c;
5046 {
5047 if (c == ':')
5048 return HIST_CMD;
5049 if (c == '=')
5050 return HIST_EXPR;
5051 if (c == '@')
5052 return HIST_INPUT;
5053 if (c == '>')
5054 return HIST_DEBUG;
5055 return HIST_SEARCH; /* must be '?' or '/' */
5056 }
5057
5058 /*
5059 * Table of history names.
5060 * These names are used in :history and various hist...() functions.
5061 * It is sufficient to give the significant prefix of a history name.
5062 */
5063
5064 static char *(history_names[]) =
5065 {
5066 "cmd",
5067 "search",
5068 "expr",
5069 "input",
5070 "debug",
5071 NULL
5072 };
5073
5074 /*
5075 * init_history() - Initialize the command line history.
5076 * Also used to re-allocate the history when the size changes.
5077 */
5078 void
5079 init_history()
5080 {
5081 int newlen; /* new length of history table */
5082 histentry_T *temp;
5083 int i;
5084 int j;
5085 int type;
5086
5087 /*
5088 * If size of history table changed, reallocate it
5089 */
5090 newlen = (int)p_hi;
5091 if (newlen != hislen) /* history length changed */
5092 {
5093 for (type = 0; type < HIST_COUNT; ++type) /* adjust the tables */
5094 {
5095 if (newlen)
5096 {
5097 temp = (histentry_T *)lalloc(
5098 (long_u)(newlen * sizeof(histentry_T)), TRUE);
5099 if (temp == NULL) /* out of memory! */
5100 {
5101 if (type == 0) /* first one: just keep the old length */
5102 {
5103 newlen = hislen;
5104 break;
5105 }
5106 /* Already changed one table, now we can only have zero
5107 * length for all tables. */
5108 newlen = 0;
5109 type = -1;
5110 continue;
5111 }
5112 }
5113 else
5114 temp = NULL;
5115 if (newlen == 0 || temp != NULL)
5116 {
5117 if (hisidx[type] < 0) /* there are no entries yet */
5118 {
5119 for (i = 0; i < newlen; ++i)
5120 {
5121 temp[i].hisnum = 0;
5122 temp[i].hisstr = NULL;
5123 }
5124 }
5125 else if (newlen > hislen) /* array becomes bigger */
5126 {
5127 for (i = 0; i <= hisidx[type]; ++i)
5128 temp[i] = history[type][i];
5129 j = i;
5130 for ( ; i <= newlen - (hislen - hisidx[type]); ++i)
5131 {
5132 temp[i].hisnum = 0;
5133 temp[i].hisstr = NULL;
5134 }
5135 for ( ; j < hislen; ++i, ++j)
5136 temp[i] = history[type][j];
5137 }
5138 else /* array becomes smaller or 0 */
5139 {
5140 j = hisidx[type];
5141 for (i = newlen - 1; ; --i)
5142 {
5143 if (i >= 0) /* copy newest entries */
5144 temp[i] = history[type][j];
5145 else /* remove older entries */
5146 vim_free(history[type][j].hisstr);
5147 if (--j < 0)
5148 j = hislen - 1;
5149 if (j == hisidx[type])
5150 break;
5151 }
5152 hisidx[type] = newlen - 1;
5153 }
5154 vim_free(history[type]);
5155 history[type] = temp;
5156 }
5157 }
5158 hislen = newlen;
5159 }
5160 }
5161
5162 /*
5163 * Check if command line 'str' is already in history.
5164 * If 'move_to_front' is TRUE, matching entry is moved to end of history.
5165 */
5166 static int
5167 in_history(type, str, move_to_front)
5168 int type;
5169 char_u *str;
5170 int move_to_front; /* Move the entry to the front if it exists */
5171 {
5172 int i;
5173 int last_i = -1;
5174
5175 if (hisidx[type] < 0)
5176 return FALSE;
5177 i = hisidx[type];
5178 do
5179 {
5180 if (history[type][i].hisstr == NULL)
5181 return FALSE;
5182 if (STRCMP(str, history[type][i].hisstr) == 0)
5183 {
5184 if (!move_to_front)
5185 return TRUE;
5186 last_i = i;
5187 break;
5188 }
5189 if (--i < 0)
5190 i = hislen - 1;
5191 } while (i != hisidx[type]);
5192
5193 if (last_i >= 0)
5194 {
5195 str = history[type][i].hisstr;
5196 while (i != hisidx[type])
5197 {
5198 if (++i >= hislen)
5199 i = 0;
5200 history[type][last_i] = history[type][i];
5201 last_i = i;
5202 }
5203 history[type][i].hisstr = str;
5204 history[type][i].hisnum = ++hisnum[type];
5205 return TRUE;
5206 }
5207 return FALSE;
5208 }
5209
5210 /*
5211 * Convert history name (from table above) to its HIST_ equivalent.
5212 * When "name" is empty, return "cmd" history.
5213 * Returns -1 for unknown history name.
5214 */
5215 int
5216 get_histtype(name)
5217 char_u *name;
5218 {
5219 int i;
5220 int len = (int)STRLEN(name);
5221
5222 /* No argument: use current history. */
5223 if (len == 0)
5224 return hist_char2type(ccline.cmdfirstc);
5225
5226 for (i = 0; history_names[i] != NULL; ++i)
5227 if (STRNICMP(name, history_names[i], len) == 0)
5228 return i;
5229
5230 if (vim_strchr((char_u *)":=@>?/", name[0]) != NULL && name[1] == NUL)
5231 return hist_char2type(name[0]);
5232
5233 return -1;
5234 }
5235
5236 static int last_maptick = -1; /* last seen maptick */
5237
5238 /*
5239 * Add the given string to the given history. If the string is already in the
5240 * history then it is moved to the front. "histype" may be one of he HIST_
5241 * values.
5242 */
5243 void
5244 add_to_history(histype, new_entry, in_map, sep)
5245 int histype;
5246 char_u *new_entry;
5247 int in_map; /* consider maptick when inside a mapping */
5248 int sep; /* separator character used (search hist) */
5249 {
5250 histentry_T *hisptr;
5251 int len;
5252
5253 if (hislen == 0) /* no history */
5254 return;
5255
5256 /*
5257 * Searches inside the same mapping overwrite each other, so that only
5258 * the last line is kept. Be careful not to remove a line that was moved
5259 * down, only lines that were added.
5260 */
5261 if (histype == HIST_SEARCH && in_map)
5262 {
5263 if (maptick == last_maptick)
5264 {
5265 /* Current line is from the same mapping, remove it */
5266 hisptr = &history[HIST_SEARCH][hisidx[HIST_SEARCH]];
5267 vim_free(hisptr->hisstr);
5268 hisptr->hisstr = NULL;
5269 hisptr->hisnum = 0;
5270 --hisnum[histype];
5271 if (--hisidx[HIST_SEARCH] < 0)
5272 hisidx[HIST_SEARCH] = hislen - 1;
5273 }
5274 last_maptick = -1;
5275 }
5276 if (!in_history(histype, new_entry, TRUE))
5277 {
5278 if (++hisidx[histype] == hislen)
5279 hisidx[histype] = 0;
5280 hisptr = &history[histype][hisidx[histype]];
5281 vim_free(hisptr->hisstr);
5282
5283 /* Store the separator after the NUL of the string. */
5284 len = (int)STRLEN(new_entry);
5285 hisptr->hisstr = vim_strnsave(new_entry, len + 2);
5286 if (hisptr->hisstr != NULL)
5287 hisptr->hisstr[len + 1] = sep;
5288
5289 hisptr->hisnum = ++hisnum[histype];
5290 if (histype == HIST_SEARCH && in_map)
5291 last_maptick = maptick;
5292 }
5293 }
5294
5295 #if defined(FEAT_EVAL) || defined(PROTO)
5296
5297 /*
5298 * Get identifier of newest history entry.
5299 * "histype" may be one of the HIST_ values.
5300 */
5301 int
5302 get_history_idx(histype)
5303 int histype;
5304 {
5305 if (hislen == 0 || histype < 0 || histype >= HIST_COUNT
5306 || hisidx[histype] < 0)
5307 return -1;
5308
5309 return history[histype][hisidx[histype]].hisnum;
5310 }
5311
5312 static struct cmdline_info *get_ccline_ptr __ARGS((void));
5313
5314 /*
5315 * Get pointer to the command line info to use. cmdline_paste() may clear
5316 * ccline and put the previous value in prev_ccline.
5317 */
5318 static struct cmdline_info *
5319 get_ccline_ptr()
5320 {
5321 if ((State & CMDLINE) == 0)
5322 return NULL;
5323 if (ccline.cmdbuff != NULL)
5324 return &ccline;
5325 if (prev_ccline_used && prev_ccline.cmdbuff != NULL)
5326 return &prev_ccline;
5327 return NULL;
5328 }
5329
5330 /*
5331 * Get the current command line in allocated memory.
5332 * Only works when the command line is being edited.
5333 * Returns NULL when something is wrong.
5334 */
5335 char_u *
5336 get_cmdline_str()
5337 {
5338 struct cmdline_info *p = get_ccline_ptr();
5339
5340 if (p == NULL)
5341 return NULL;
5342 return vim_strnsave(p->cmdbuff, p->cmdlen);
5343 }
5344
5345 /*
5346 * Get the current command line position, counted in bytes.
5347 * Zero is the first position.
5348 * Only works when the command line is being edited.
5349 * Returns -1 when something is wrong.
5350 */
5351 int
5352 get_cmdline_pos()
5353 {
5354 struct cmdline_info *p = get_ccline_ptr();
5355
5356 if (p == NULL)
5357 return -1;
5358 return p->cmdpos;
5359 }
5360
5361 /*
5362 * Set the command line byte position to "pos". Zero is the first position.
5363 * Only works when the command line is being edited.
5364 * Returns 1 when failed, 0 when OK.
5365 */
5366 int
5367 set_cmdline_pos(pos)
5368 int pos;
5369 {
5370 struct cmdline_info *p = get_ccline_ptr();
5371
5372 if (p == NULL)
5373 return 1;
5374
5375 /* The position is not set directly but after CTRL-\ e or CTRL-R = has
5376 * changed the command line. */
5377 if (pos < 0)
5378 new_cmdpos = 0;
5379 else
5380 new_cmdpos = pos;
5381 return 0;
5382 }
5383
5384 /*
5385 * Get the current command-line type.
5386 * Returns ':' or '/' or '?' or '@' or '>' or '-'
5387 * Only works when the command line is being edited.
5388 * Returns NUL when something is wrong.
5389 */
5390 int
5391 get_cmdline_type()
5392 {
5393 struct cmdline_info *p = get_ccline_ptr();
5394
5395 if (p == NULL)
5396 return NUL;
5397 if (p->cmdfirstc == NUL)
5398 return (p->input_fn) ? '@' : '-';
5399 return p->cmdfirstc;
5400 }
5401
5402 /*
5403 * Calculate history index from a number:
5404 * num > 0: seen as identifying number of a history entry
5405 * num < 0: relative position in history wrt newest entry
5406 * "histype" may be one of the HIST_ values.
5407 */
5408 static int
5409 calc_hist_idx(histype, num)
5410 int histype;
5411 int num;
5412 {
5413 int i;
5414 histentry_T *hist;
5415 int wrapped = FALSE;
5416
5417 if (hislen == 0 || histype < 0 || histype >= HIST_COUNT
5418 || (i = hisidx[histype]) < 0 || num == 0)
5419 return -1;
5420
5421 hist = history[histype];
5422 if (num > 0)
5423 {
5424 while (hist[i].hisnum > num)
5425 if (--i < 0)
5426 {
5427 if (wrapped)
5428 break;
5429 i += hislen;
5430 wrapped = TRUE;
5431 }
5432 if (hist[i].hisnum == num && hist[i].hisstr != NULL)
5433 return i;
5434 }
5435 else if (-num <= hislen)
5436 {
5437 i += num + 1;
5438 if (i < 0)
5439 i += hislen;
5440 if (hist[i].hisstr != NULL)
5441 return i;
5442 }
5443 return -1;
5444 }
5445
5446 /*
5447 * Get a history entry by its index.
5448 * "histype" may be one of the HIST_ values.
5449 */
5450 char_u *
5451 get_history_entry(histype, idx)
5452 int histype;
5453 int idx;
5454 {
5455 idx = calc_hist_idx(histype, idx);
5456 if (idx >= 0)
5457 return history[histype][idx].hisstr;
5458 else
5459 return (char_u *)"";
5460 }
5461
5462 /*
5463 * Clear all entries of a history.
5464 * "histype" may be one of the HIST_ values.
5465 */
5466 int
5467 clr_history(histype)
5468 int histype;
5469 {
5470 int i;
5471 histentry_T *hisptr;
5472
5473 if (hislen != 0 && histype >= 0 && histype < HIST_COUNT)
5474 {
5475 hisptr = history[histype];
5476 for (i = hislen; i--;)
5477 {
5478 vim_free(hisptr->hisstr);
5479 hisptr->hisnum = 0;
5480 hisptr++->hisstr = NULL;
5481 }
5482 hisidx[histype] = -1; /* mark history as cleared */
5483 hisnum[histype] = 0; /* reset identifier counter */
5484 return OK;
5485 }
5486 return FAIL;
5487 }
5488
5489 /*
5490 * Remove all entries matching {str} from a history.
5491 * "histype" may be one of the HIST_ values.
5492 */
5493 int
5494 del_history_entry(histype, str)
5495 int histype;
5496 char_u *str;
5497 {
5498 regmatch_T regmatch;
5499 histentry_T *hisptr;
5500 int idx;
5501 int i;
5502 int last;
5503 int found = FALSE;
5504
5505 regmatch.regprog = NULL;
5506 regmatch.rm_ic = FALSE; /* always match case */
5507 if (hislen != 0
5508 && histype >= 0
5509 && histype < HIST_COUNT
5510 && *str != NUL
5511 && (idx = hisidx[histype]) >= 0
5512 && (regmatch.regprog = vim_regcomp(str, RE_MAGIC + RE_STRING))
5513 != NULL)
5514 {
5515 i = last = idx;
5516 do
5517 {
5518 hisptr = &history[histype][i];
5519 if (hisptr->hisstr == NULL)
5520 break;
5521 if (vim_regexec(&regmatch, hisptr->hisstr, (colnr_T)0))
5522 {
5523 found = TRUE;
5524 vim_free(hisptr->hisstr);
5525 hisptr->hisstr = NULL;
5526 hisptr->hisnum = 0;
5527 }
5528 else
5529 {
5530 if (i != last)
5531 {
5532 history[histype][last] = *hisptr;
5533 hisptr->hisstr = NULL;
5534 hisptr->hisnum = 0;
5535 }
5536 if (--last < 0)
5537 last += hislen;
5538 }
5539 if (--i < 0)
5540 i += hislen;
5541 } while (i != idx);
5542 if (history[histype][idx].hisstr == NULL)
5543 hisidx[histype] = -1;
5544 }
5545 vim_free(regmatch.regprog);
5546 return found;
5547 }
5548
5549 /*
5550 * Remove an indexed entry from a history.
5551 * "histype" may be one of the HIST_ values.
5552 */
5553 int
5554 del_history_idx(histype, idx)
5555 int histype;
5556 int idx;
5557 {
5558 int i, j;
5559
5560 i = calc_hist_idx(histype, idx);
5561 if (i < 0)
5562 return FALSE;
5563 idx = hisidx[histype];
5564 vim_free(history[histype][i].hisstr);
5565
5566 /* When deleting the last added search string in a mapping, reset
5567 * last_maptick, so that the last added search string isn't deleted again.
5568 */
5569 if (histype == HIST_SEARCH && maptick == last_maptick && i == idx)
5570 last_maptick = -1;
5571
5572 while (i != idx)
5573 {
5574 j = (i + 1) % hislen;
5575 history[histype][i] = history[histype][j];
5576 i = j;
5577 }
5578 history[histype][i].hisstr = NULL;
5579 history[histype][i].hisnum = 0;
5580 if (--i < 0)
5581 i += hislen;
5582 hisidx[histype] = i;
5583 return TRUE;
5584 }
5585
5586 #endif /* FEAT_EVAL */
5587
5588 #if defined(FEAT_CRYPT) || defined(PROTO)
5589 /*
5590 * Very specific function to remove the value in ":set key=val" from the
5591 * history.
5592 */
5593 void
5594 remove_key_from_history()
5595 {
5596 char_u *p;
5597 int i;
5598
5599 i = hisidx[HIST_CMD];
5600 if (i < 0)
5601 return;
5602 p = history[HIST_CMD][i].hisstr;
5603 if (p != NULL)
5604 for ( ; *p; ++p)
5605 if (STRNCMP(p, "key", 3) == 0 && !isalpha(p[3]))
5606 {
5607 p = vim_strchr(p + 3, '=');
5608 if (p == NULL)
5609 break;
5610 ++p;
5611 for (i = 0; p[i] && !vim_iswhite(p[i]); ++i)
5612 if (p[i] == '\\' && p[i + 1])
5613 ++i;
5614 STRMOVE(p, p + i);
5615 --p;
5616 }
5617 }
5618 #endif
5619
5620 #endif /* FEAT_CMDHIST */
5621
5622 #if defined(FEAT_QUICKFIX) || defined(FEAT_CMDHIST) || defined(PROTO)
5623 /*
5624 * Get indices "num1,num2" that specify a range within a list (not a range of
5625 * text lines in a buffer!) from a string. Used for ":history" and ":clist".
5626 * Returns OK if parsed successfully, otherwise FAIL.
5627 */
5628 int
5629 get_list_range(str, num1, num2)
5630 char_u **str;
5631 int *num1;
5632 int *num2;
5633 {
5634 int len;
5635 int first = FALSE;
5636 long num;
5637
5638 *str = skipwhite(*str);
5639 if (**str == '-' || vim_isdigit(**str)) /* parse "from" part of range */
5640 {
5641 vim_str2nr(*str, NULL, &len, FALSE, FALSE, &num, NULL);
5642 *str += len;
5643 *num1 = (int)num;
5644 first = TRUE;
5645 }
5646 *str = skipwhite(*str);
5647 if (**str == ',') /* parse "to" part of range */
5648 {
5649 *str = skipwhite(*str + 1);
5650 vim_str2nr(*str, NULL, &len, FALSE, FALSE, &num, NULL);
5651 if (len > 0)
5652 {
5653 *num2 = (int)num;
5654 *str = skipwhite(*str + len);
5655 }
5656 else if (!first) /* no number given at all */
5657 return FAIL;
5658 }
5659 else if (first) /* only one number given */
5660 *num2 = *num1;
5661 return OK;
5662 }
5663 #endif
5664
5665 #if defined(FEAT_CMDHIST) || defined(PROTO)
5666 /*
5667 * :history command - print a history
5668 */
5669 void
5670 ex_history(eap)
5671 exarg_T *eap;
5672 {
5673 histentry_T *hist;
5674 int histype1 = HIST_CMD;
5675 int histype2 = HIST_CMD;
5676 int hisidx1 = 1;
5677 int hisidx2 = -1;
5678 int idx;
5679 int i, j, k;
5680 char_u *end;
5681 char_u *arg = eap->arg;
5682
5683 if (hislen == 0)
5684 {
5685 MSG(_("'history' option is zero"));
5686 return;
5687 }
5688
5689 if (!(VIM_ISDIGIT(*arg) || *arg == '-' || *arg == ','))
5690 {
5691 end = arg;
5692 while (ASCII_ISALPHA(*end)
5693 || vim_strchr((char_u *)":=@>/?", *end) != NULL)
5694 end++;
5695 i = *end;
5696 *end = NUL;
5697 histype1 = get_histtype(arg);
5698 if (histype1 == -1)
5699 {
5700 if (STRNICMP(arg, "all", STRLEN(arg)) == 0)
5701 {
5702 histype1 = 0;
5703 histype2 = HIST_COUNT-1;
5704 }
5705 else
5706 {
5707 *end = i;
5708 EMSG(_(e_trailing));
5709 return;
5710 }
5711 }
5712 else
5713 histype2 = histype1;
5714 *end = i;
5715 }
5716 else
5717 end = arg;
5718 if (!get_list_range(&end, &hisidx1, &hisidx2) || *end != NUL)
5719 {
5720 EMSG(_(e_trailing));
5721 return;
5722 }
5723
5724 for (; !got_int && histype1 <= histype2; ++histype1)
5725 {
5726 STRCPY(IObuff, "\n # ");
5727 STRCAT(STRCAT(IObuff, history_names[histype1]), " history");
5728 MSG_PUTS_TITLE(IObuff);
5729 idx = hisidx[histype1];
5730 hist = history[histype1];
5731 j = hisidx1;
5732 k = hisidx2;
5733 if (j < 0)
5734 j = (-j > hislen) ? 0 : hist[(hislen+j+idx+1) % hislen].hisnum;
5735 if (k < 0)
5736 k = (-k > hislen) ? 0 : hist[(hislen+k+idx+1) % hislen].hisnum;
5737 if (idx >= 0 && j <= k)
5738 for (i = idx + 1; !got_int; ++i)
5739 {
5740 if (i == hislen)
5741 i = 0;
5742 if (hist[i].hisstr != NULL
5743 && hist[i].hisnum >= j && hist[i].hisnum <= k)
5744 {
5745 msg_putchar('\n');
5746 sprintf((char *)IObuff, "%c%6d ", i == idx ? '>' : ' ',
5747 hist[i].hisnum);
5748 if (vim_strsize(hist[i].hisstr) > (int)Columns - 10)
5749 trunc_string(hist[i].hisstr, IObuff + STRLEN(IObuff),
5750 (int)Columns - 10);
5751 else
5752 STRCAT(IObuff, hist[i].hisstr);
5753 msg_outtrans(IObuff);
5754 out_flush();
5755 }
5756 if (i == idx)
5757 break;
5758 }
5759 }
5760 }
5761 #endif
5762
5763 #if (defined(FEAT_VIMINFO) && defined(FEAT_CMDHIST)) || defined(PROTO)
5764 static char_u **viminfo_history[HIST_COUNT] = {NULL, NULL, NULL, NULL};
5765 static int viminfo_hisidx[HIST_COUNT] = {0, 0, 0, 0};
5766 static int viminfo_hislen[HIST_COUNT] = {0, 0, 0, 0};
5767 static int viminfo_add_at_front = FALSE;
5768
5769 static int hist_type2char __ARGS((int type, int use_question));
5770
5771 /*
5772 * Translate a history type number to the associated character.
5773 */
5774 static int
5775 hist_type2char(type, use_question)
5776 int type;
5777 int use_question; /* use '?' instead of '/' */
5778 {
5779 if (type == HIST_CMD)
5780 return ':';
5781 if (type == HIST_SEARCH)
5782 {
5783 if (use_question)
5784 return '?';
5785 else
5786 return '/';
5787 }
5788 if (type == HIST_EXPR)
5789 return '=';
5790 return '@';
5791 }
5792
5793 /*
5794 * Prepare for reading the history from the viminfo file.
5795 * This allocates history arrays to store the read history lines.
5796 */
5797 void
5798 prepare_viminfo_history(asklen)
5799 int asklen;
5800 {
5801 int i;
5802 int num;
5803 int type;
5804 int len;
5805
5806 init_history();
5807 viminfo_add_at_front = (asklen != 0);
5808 if (asklen > hislen)
5809 asklen = hislen;
5810
5811 for (type = 0; type < HIST_COUNT; ++type)
5812 {
5813 /*
5814 * Count the number of empty spaces in the history list. If there are
5815 * more spaces available than we request, then fill them up.
5816 */
5817 for (i = 0, num = 0; i < hislen; i++)
5818 if (history[type][i].hisstr == NULL)
5819 num++;
5820 len = asklen;
5821 if (num > len)
5822 len = num;
5823 if (len <= 0)
5824 viminfo_history[type] = NULL;
5825 else
5826 viminfo_history[type] =
5827 (char_u **)lalloc((long_u)(len * sizeof(char_u *)), FALSE);
5828 if (viminfo_history[type] == NULL)
5829 len = 0;
5830 viminfo_hislen[type] = len;
5831 viminfo_hisidx[type] = 0;
5832 }
5833 }
5834
5835 /*
5836 * Accept a line from the viminfo, store it in the history array when it's
5837 * new.
5838 */
5839 int
5840 read_viminfo_history(virp)
5841 vir_T *virp;
5842 {
5843 int type;
5844 long_u len;
5845 char_u *val;
5846 char_u *p;
5847
5848 type = hist_char2type(virp->vir_line[0]);
5849 if (viminfo_hisidx[type] < viminfo_hislen[type])
5850 {
5851 val = viminfo_readstring(virp, 1, TRUE);
5852 if (val != NULL && *val != NUL)
5853 {
5854 if (!in_history(type, val + (type == HIST_SEARCH),
5855 viminfo_add_at_front))
5856 {
5857 /* Need to re-allocate to append the separator byte. */
5858 len = STRLEN(val);
5859 p = lalloc(len + 2, TRUE);
5860 if (p != NULL)
5861 {
5862 if (type == HIST_SEARCH)
5863 {
5864 /* Search entry: Move the separator from the first
5865 * column to after the NUL. */
5866 mch_memmove(p, val + 1, (size_t)len);
5867 p[len] = (*val == ' ' ? NUL : *val);
5868 }
5869 else
5870 {
5871 /* Not a search entry: No separator in the viminfo
5872 * file, add a NUL separator. */
5873 mch_memmove(p, val, (size_t)len + 1);
5874 p[len + 1] = NUL;
5875 }
5876 viminfo_history[type][viminfo_hisidx[type]++] = p;
5877 }
5878 }
5879 }
5880 vim_free(val);
5881 }
5882 return viminfo_readline(virp);
5883 }
5884
5885 void
5886 finish_viminfo_history()
5887 {
5888 int idx;
5889 int i;
5890 int type;
5891
5892 for (type = 0; type < HIST_COUNT; ++type)
5893 {
5894 if (history[type] == NULL)
5895 return;
5896 idx = hisidx[type] + viminfo_hisidx[type];
5897 if (idx >= hislen)
5898 idx -= hislen;
5899 else if (idx < 0)
5900 idx = hislen - 1;
5901 if (viminfo_add_at_front)
5902 hisidx[type] = idx;
5903 else
5904 {
5905 if (hisidx[type] == -1)
5906 hisidx[type] = hislen - 1;
5907 do
5908 {
5909 if (history[type][idx].hisstr != NULL)
5910 break;
5911 if (++idx == hislen)
5912 idx = 0;
5913 } while (idx != hisidx[type]);
5914 if (idx != hisidx[type] && --idx < 0)
5915 idx = hislen - 1;
5916 }
5917 for (i = 0; i < viminfo_hisidx[type]; i++)
5918 {
5919 vim_free(history[type][idx].hisstr);
5920 history[type][idx].hisstr = viminfo_history[type][i];
5921 if (--idx < 0)
5922 idx = hislen - 1;
5923 }
5924 idx += 1;
5925 idx %= hislen;
5926 for (i = 0; i < viminfo_hisidx[type]; i++)
5927 {
5928 history[type][idx++].hisnum = ++hisnum[type];
5929 idx %= hislen;
5930 }
5931 vim_free(viminfo_history[type]);
5932 viminfo_history[type] = NULL;
5933 }
5934 }
5935
5936 void
5937 write_viminfo_history(fp)
5938 FILE *fp;
5939 {
5940 int i;
5941 int type;
5942 int num_saved;
5943 char_u *p;
5944 int c;
5945
5946 init_history();
5947 if (hislen == 0)
5948 return;
5949 for (type = 0; type < HIST_COUNT; ++type)
5950 {
5951 num_saved = get_viminfo_parameter(hist_type2char(type, FALSE));
5952 if (num_saved == 0)
5953 continue;
5954 if (num_saved < 0) /* Use default */
5955 num_saved = hislen;
5956 fprintf(fp, _("\n# %s History (newest to oldest):\n"),
5957 type == HIST_CMD ? _("Command Line") :
5958 type == HIST_SEARCH ? _("Search String") :
5959 type == HIST_EXPR ? _("Expression") :
5960 _("Input Line"));
5961 if (num_saved > hislen)
5962 num_saved = hislen;
5963 i = hisidx[type];
5964 if (i >= 0)
5965 while (num_saved--)
5966 {
5967 p = history[type][i].hisstr;
5968 if (p != NULL)
5969 {
5970 fputc(hist_type2char(type, TRUE), fp);
5971 /* For the search history: put the separator in the second
5972 * column; use a space if there isn't one. */
5973 if (type == HIST_SEARCH)
5974 {
5975 c = p[STRLEN(p) + 1];
5976 putc(c == NUL ? ' ' : c, fp);
5977 }
5978 viminfo_writestring(fp, p);
5979 }
5980 if (--i < 0)
5981 i = hislen - 1;
5982 }
5983 }
5984 }
5985 #endif /* FEAT_VIMINFO */
5986
5987 #if defined(FEAT_FKMAP) || defined(PROTO)
5988 /*
5989 * Write a character at the current cursor+offset position.
5990 * It is directly written into the command buffer block.
5991 */
5992 void
5993 cmd_pchar(c, offset)
5994 int c, offset;
5995 {
5996 if (ccline.cmdpos + offset >= ccline.cmdlen || ccline.cmdpos + offset < 0)
5997 {
5998 EMSG(_("E198: cmd_pchar beyond the command length"));
5999 return;
6000 }
6001 ccline.cmdbuff[ccline.cmdpos + offset] = (char_u)c;
6002 ccline.cmdbuff[ccline.cmdlen] = NUL;
6003 }
6004
6005 int
6006 cmd_gchar(offset)
6007 int offset;
6008 {
6009 if (ccline.cmdpos + offset >= ccline.cmdlen || ccline.cmdpos + offset < 0)
6010 {
6011 /* EMSG(_("cmd_gchar beyond the command length")); */
6012 return NUL;
6013 }
6014 return (int)ccline.cmdbuff[ccline.cmdpos + offset];
6015 }
6016 #endif
6017
6018 #if defined(FEAT_CMDWIN) || defined(PROTO)
6019 /*
6020 * Open a window on the current command line and history. Allow editing in
6021 * the window. Returns when the window is closed.
6022 * Returns:
6023 * CR if the command is to be executed
6024 * Ctrl_C if it is to be abandoned
6025 * K_IGNORE if editing continues
6026 */
6027 static int
6028 ex_window()
6029 {
6030 struct cmdline_info save_ccline;
6031 buf_T *old_curbuf = curbuf;
6032 win_T *old_curwin = curwin;
6033 buf_T *bp;
6034 win_T *wp;
6035 int i;
6036 linenr_T lnum;
6037 int histtype;
6038 garray_T winsizes;
6039 #ifdef FEAT_AUTOCMD
6040 char_u typestr[2];
6041 #endif
6042 int save_restart_edit = restart_edit;
6043 int save_State = State;
6044 int save_exmode = exmode_active;
6045 #ifdef FEAT_RIGHTLEFT
6046 int save_cmdmsg_rl = cmdmsg_rl;
6047 #endif
6048
6049 /* Can't do this recursively. Can't do it when typing a password. */
6050 if (cmdwin_type != 0
6051 # if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
6052 || cmdline_star > 0
6053 # endif
6054 )
6055 {
6056 beep_flush();
6057 return K_IGNORE;
6058 }
6059
6060 /* Save current window sizes. */
6061 win_size_save(&winsizes);
6062
6063 # ifdef FEAT_AUTOCMD
6064 /* Don't execute autocommands while creating the window. */
6065 block_autocmds();
6066 # endif
6067 /* don't use a new tab page */
6068 cmdmod.tab = 0;
6069
6070 /* Create a window for the command-line buffer. */
6071 if (win_split((int)p_cwh, WSP_BOT) == FAIL)
6072 {
6073 beep_flush();
6074 # ifdef FEAT_AUTOCMD
6075 unblock_autocmds();
6076 # endif
6077 return K_IGNORE;
6078 }
6079 cmdwin_type = get_cmdline_type();
6080
6081 /* Create the command-line buffer empty. */
6082 (void)do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, ECMD_HIDE, NULL);
6083 (void)setfname(curbuf, (char_u *)"[Command Line]", NULL, TRUE);
6084 set_option_value((char_u *)"bt", 0L, (char_u *)"nofile", OPT_LOCAL);
6085 set_option_value((char_u *)"swf", 0L, NULL, OPT_LOCAL);
6086 curbuf->b_p_ma = TRUE;
6087 #ifdef FEAT_FOLDING
6088 curwin->w_p_fen = FALSE;
6089 #endif
6090 # ifdef FEAT_RIGHTLEFT
6091 curwin->w_p_rl = cmdmsg_rl;
6092 cmdmsg_rl = FALSE;
6093 # endif
6094 # ifdef FEAT_SCROLLBIND
6095 curwin->w_p_scb = FALSE;
6096 # endif
6097
6098 # ifdef FEAT_AUTOCMD
6099 /* Do execute autocommands for setting the filetype (load syntax). */
6100 unblock_autocmds();
6101 # endif
6102
6103 /* Showing the prompt may have set need_wait_return, reset it. */
6104 need_wait_return = FALSE;
6105
6106 histtype = hist_char2type(cmdwin_type);
6107 if (histtype == HIST_CMD || histtype == HIST_DEBUG)
6108 {
6109 if (p_wc == TAB)
6110 {
6111 add_map((char_u *)"<buffer> <Tab> <C-X><C-V>", INSERT);
6112 add_map((char_u *)"<buffer> <Tab> a<C-X><C-V>", NORMAL);
6113 }
6114 set_option_value((char_u *)"ft", 0L, (char_u *)"vim", OPT_LOCAL);
6115 }
6116
6117 /* Reset 'textwidth' after setting 'filetype' (the Vim filetype plugin
6118 * sets 'textwidth' to 78). */
6119 curbuf->b_p_tw = 0;
6120
6121 /* Fill the buffer with the history. */
6122 init_history();
6123 if (hislen > 0)
6124 {
6125 i = hisidx[histtype];
6126 if (i >= 0)
6127 {
6128 lnum = 0;
6129 do
6130 {
6131 if (++i == hislen)
6132 i = 0;
6133 if (history[histtype][i].hisstr != NULL)
6134 ml_append(lnum++, history[histtype][i].hisstr,
6135 (colnr_T)0, FALSE);
6136 }
6137 while (i != hisidx[histtype]);
6138 }
6139 }
6140
6141 /* Replace the empty last line with the current command-line and put the
6142 * cursor there. */
6143 ml_replace(curbuf->b_ml.ml_line_count, ccline.cmdbuff, TRUE);
6144 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6145 curwin->w_cursor.col = ccline.cmdpos;
6146 changed_line_abv_curs();
6147 invalidate_botline();
6148 redraw_later(SOME_VALID);
6149
6150 /* Save the command line info, can be used recursively. */
6151 save_ccline = ccline;
6152 ccline.cmdbuff = NULL;
6153 ccline.cmdprompt = NULL;
6154
6155 /* No Ex mode here! */
6156 exmode_active = 0;
6157
6158 State = NORMAL;
6159 # ifdef FEAT_MOUSE
6160 setmouse();
6161 # endif
6162
6163 # ifdef FEAT_AUTOCMD
6164 /* Trigger CmdwinEnter autocommands. */
6165 typestr[0] = cmdwin_type;
6166 typestr[1] = NUL;
6167 apply_autocmds(EVENT_CMDWINENTER, typestr, typestr, FALSE, curbuf);
6168 if (restart_edit != 0) /* autocmd with ":startinsert" */
6169 stuffcharReadbuff(K_NOP);
6170 # endif
6171
6172 i = RedrawingDisabled;
6173 RedrawingDisabled = 0;
6174
6175 /*
6176 * Call the main loop until <CR> or CTRL-C is typed.
6177 */
6178 cmdwin_result = 0;
6179 main_loop(TRUE, FALSE);
6180
6181 RedrawingDisabled = i;
6182
6183 # ifdef FEAT_AUTOCMD
6184 /* Trigger CmdwinLeave autocommands. */
6185 apply_autocmds(EVENT_CMDWINLEAVE, typestr, typestr, FALSE, curbuf);
6186 # endif
6187
6188 /* Restore the command line info. */
6189 ccline = save_ccline;
6190 cmdwin_type = 0;
6191
6192 exmode_active = save_exmode;
6193
6194 /* Safety check: The old window or buffer was deleted: It's a bug when
6195 * this happens! */
6196 if (!win_valid(old_curwin) || !buf_valid(old_curbuf))
6197 {
6198 cmdwin_result = Ctrl_C;
6199 EMSG(_("E199: Active window or buffer deleted"));
6200 }
6201 else
6202 {
6203 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
6204 /* autocmds may abort script processing */
6205 if (aborting() && cmdwin_result != K_IGNORE)
6206 cmdwin_result = Ctrl_C;
6207 # endif
6208 /* Set the new command line from the cmdline buffer. */
6209 vim_free(ccline.cmdbuff);
6210 if (cmdwin_result == K_XF1 || cmdwin_result == K_XF2) /* :qa[!] typed */
6211 {
6212 char *p = (cmdwin_result == K_XF2) ? "qa" : "qa!";
6213
6214 if (histtype == HIST_CMD)
6215 {
6216 /* Execute the command directly. */
6217 ccline.cmdbuff = vim_strsave((char_u *)p);
6218 cmdwin_result = CAR;
6219 }
6220 else
6221 {
6222 /* First need to cancel what we were doing. */
6223 ccline.cmdbuff = NULL;
6224 stuffcharReadbuff(':');
6225 stuffReadbuff((char_u *)p);
6226 stuffcharReadbuff(CAR);
6227 }
6228 }
6229 else if (cmdwin_result == K_XF2) /* :qa typed */
6230 {
6231 ccline.cmdbuff = vim_strsave((char_u *)"qa");
6232 cmdwin_result = CAR;
6233 }
6234 else
6235 ccline.cmdbuff = vim_strsave(ml_get_curline());
6236 if (ccline.cmdbuff == NULL)
6237 cmdwin_result = Ctrl_C;
6238 else
6239 {
6240 ccline.cmdlen = (int)STRLEN(ccline.cmdbuff);
6241 ccline.cmdbufflen = ccline.cmdlen + 1;
6242 ccline.cmdpos = curwin->w_cursor.col;
6243 if (ccline.cmdpos > ccline.cmdlen)
6244 ccline.cmdpos = ccline.cmdlen;
6245 if (cmdwin_result == K_IGNORE)
6246 {
6247 set_cmdspos_cursor();
6248 redrawcmd();
6249 }
6250 }
6251
6252 # ifdef FEAT_AUTOCMD
6253 /* Don't execute autocommands while deleting the window. */
6254 block_autocmds();
6255 # endif
6256 wp = curwin;
6257 bp = curbuf;
6258 win_goto(old_curwin);
6259 win_close(wp, TRUE);
6260 close_buffer(NULL, bp, DOBUF_WIPE);
6261
6262 /* Restore window sizes. */
6263 win_size_restore(&winsizes);
6264
6265 # ifdef FEAT_AUTOCMD
6266 unblock_autocmds();
6267 # endif
6268 }
6269
6270 ga_clear(&winsizes);
6271 restart_edit = save_restart_edit;
6272 # ifdef FEAT_RIGHTLEFT
6273 cmdmsg_rl = save_cmdmsg_rl;
6274 # endif
6275
6276 State = save_State;
6277 # ifdef FEAT_MOUSE
6278 setmouse();
6279 # endif
6280
6281 return cmdwin_result;
6282 }
6283 #endif /* FEAT_CMDWIN */
6284
6285 /*
6286 * Used for commands that either take a simple command string argument, or:
6287 * cmd << endmarker
6288 * {script}
6289 * endmarker
6290 * Returns a pointer to allocated memory with {script} or NULL.
6291 */
6292 char_u *
6293 script_get(eap, cmd)
6294 exarg_T *eap;
6295 char_u *cmd;
6296 {
6297 char_u *theline;
6298 char *end_pattern = NULL;
6299 char dot[] = ".";
6300 garray_T ga;
6301
6302 if (cmd[0] != '<' || cmd[1] != '<' || eap->getline == NULL)
6303 return NULL;
6304
6305 ga_init2(&ga, 1, 0x400);
6306
6307 if (cmd[2] != NUL)
6308 end_pattern = (char *)skipwhite(cmd + 2);
6309 else
6310 end_pattern = dot;
6311
6312 for (;;)
6313 {
6314 theline = eap->getline(
6315 #ifdef FEAT_EVAL
6316 eap->cstack->cs_looplevel > 0 ? -1 :
6317 #endif
6318 NUL, eap->cookie, 0);
6319
6320 if (theline == NULL || STRCMP(end_pattern, theline) == 0)
6321 {
6322 vim_free(theline);
6323 break;
6324 }
6325
6326 ga_concat(&ga, theline);
6327 ga_append(&ga, '\n');
6328 vim_free(theline);
6329 }
6330 ga_append(&ga, NUL);
6331
6332 return (char_u *)ga.ga_data;
6333 }
Vim for the Mac