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Merge branch 'vim'
[MacVim.git] / src / ex_getln.c
blobce6b362540e39058b6d5c03600d1c267f3ea5ddf
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 pend = (char_u *)line_ga.ga_data + line_ga.ga_len;
2197
2198 /* Get one character at a time. Don't use inchar(), it can't handle
2199 * special characters. */
2200 prev_char = c1;
2201 c1 = vgetc();
2202
2203 /*
2204 * Handle line editing.
2205 * Previously this was left to the system, putting the terminal in
2206 * cooked mode, but then CTRL-D and CTRL-T can't be used properly.
2207 */
2208 if (got_int)
2209 {
2210 msg_putchar('\n');
2211 break;
2212 }
2213
2214 if (!escaped)
2215 {
2216 /* CR typed means "enter", which is NL */
2217 if (c1 == '\r')
2218 c1 = '\n';
2219
2220 if (c1 == BS || c1 == K_BS
2221 || c1 == DEL || c1 == K_DEL || c1 == K_KDEL)
2222 {
2223 if (line_ga.ga_len > 0)
2224 {
2225 --line_ga.ga_len;
2226 goto redraw;
2227 }
2228 continue;
2229 }
2230
2231 if (c1 == Ctrl_U)
2232 {
2233 msg_col = startcol;
2234 msg_clr_eos();
2235 line_ga.ga_len = 0;
2236 continue;
2237 }
2238
2239 if (c1 == Ctrl_T)
2240 {
2241 p = (char_u *)line_ga.ga_data;
2242 p[line_ga.ga_len] = NUL;
2243 indent = get_indent_str(p, 8);
2244 indent += curbuf->b_p_sw - indent % curbuf->b_p_sw;
2245 add_indent:
2246 while (get_indent_str(p, 8) < indent)
2247 {
2248 char_u *s = skipwhite(p);
2249
2250 ga_grow(&line_ga, 1);
2251 mch_memmove(s + 1, s, line_ga.ga_len - (s - p) + 1);
2252 *s = ' ';
2253 ++line_ga.ga_len;
2254 }
2255 redraw:
2256 /* redraw the line */
2257 msg_col = startcol;
2258 vcol = 0;
2259 for (p = (char_u *)line_ga.ga_data;
2260 p < (char_u *)line_ga.ga_data + line_ga.ga_len; ++p)
2261 {
2262 if (*p == TAB)
2263 {
2264 do
2265 {
2266 msg_putchar(' ');
2267 } while (++vcol % 8);
2268 }
2269 else
2270 {
2271 msg_outtrans_len(p, 1);
2272 vcol += char2cells(*p);
2273 }
2274 }
2275 msg_clr_eos();
2276 windgoto(msg_row, msg_col);
2277 continue;
2278 }
2279
2280 if (c1 == Ctrl_D)
2281 {
2282 /* Delete one shiftwidth. */
2283 p = (char_u *)line_ga.ga_data;
2284 if (prev_char == '0' || prev_char == '^')
2285 {
2286 if (prev_char == '^')
2287 ex_keep_indent = TRUE;
2288 indent = 0;
2289 p[--line_ga.ga_len] = NUL;
2290 }
2291 else
2292 {
2293 p[line_ga.ga_len] = NUL;
2294 indent = get_indent_str(p, 8);
2295 --indent;
2296 indent -= indent % curbuf->b_p_sw;
2297 }
2298 while (get_indent_str(p, 8) > indent)
2299 {
2300 char_u *s = skipwhite(p);
2301
2302 mch_memmove(s - 1, s, line_ga.ga_len - (s - p) + 1);
2303 --line_ga.ga_len;
2304 }
2305 goto add_indent;
2306 }
2307
2308 if (c1 == Ctrl_V || c1 == Ctrl_Q)
2309 {
2310 escaped = TRUE;
2311 continue;
2312 }
2313
2314 /* Ignore special key codes: mouse movement, K_IGNORE, etc. */
2315 if (IS_SPECIAL(c1))
2316 continue;
2317 }
2318
2319 if (IS_SPECIAL(c1))
2320 c1 = '?';
2321 ((char_u *)line_ga.ga_data)[line_ga.ga_len] = c1;
2322 if (c1 == '\n')
2323 msg_putchar('\n');
2324 else if (c1 == TAB)
2325 {
2326 /* Don't use chartabsize(), 'ts' can be different */
2327 do
2328 {
2329 msg_putchar(' ');
2330 } while (++vcol % 8);
2331 }
2332 else
2333 {
2334 msg_outtrans_len(
2335 ((char_u *)line_ga.ga_data) + line_ga.ga_len, 1);
2336 vcol += char2cells(c1);
2337 }
2338 ++line_ga.ga_len;
2339 escaped = FALSE;
2340
2341 windgoto(msg_row, msg_col);
2342 pend = (char_u *)(line_ga.ga_data) + line_ga.ga_len;
2343
2344 /* we are done when a NL is entered, but not when it comes after a
2345 * backslash */
2346 if (line_ga.ga_len > 0 && pend[-1] == '\n'
2347 && (line_ga.ga_len <= 1 || pend[-2] != '\\'))
2348 {
2349 --line_ga.ga_len;
2350 --pend;
2351 *pend = NUL;
2352 break;
2353 }
2354 }
2355
2356 --no_mapping;
2357 --allow_keys;
2358
2359 /* make following messages go to the next line */
2360 msg_didout = FALSE;
2361 msg_col = 0;
2362 if (msg_row < Rows - 1)
2363 ++msg_row;
2364 emsg_on_display = FALSE; /* don't want ui_delay() */
2365
2366 if (got_int)
2367 ga_clear(&line_ga);
2368
2369 return (char_u *)line_ga.ga_data;
2370 }
2371
2372 # if defined(MCH_CURSOR_SHAPE) || defined(FEAT_GUI) \
2373 || defined(FEAT_MOUSESHAPE) || defined(PROTO)
2374 /*
2375 * Return TRUE if ccline.overstrike is on.
2376 */
2377 int
2378 cmdline_overstrike()
2379 {
2380 return ccline.overstrike;
2381 }
2382
2383 /*
2384 * Return TRUE if the cursor is at the end of the cmdline.
2385 */
2386 int
2387 cmdline_at_end()
2388 {
2389 return (ccline.cmdpos >= ccline.cmdlen);
2390 }
2391 #endif
2392
2393 #if (defined(FEAT_XIM) && (defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MACVIM))) \
2394 || defined(PROTO)
2395 /*
2396 * Return the virtual column number at the current cursor position.
2397 * This is used by the IM code to obtain the start of the preedit string.
2398 */
2399 colnr_T
2400 cmdline_getvcol_cursor()
2401 {
2402 if (ccline.cmdbuff == NULL || ccline.cmdpos > ccline.cmdlen)
2403 return MAXCOL;
2404
2405 # ifdef FEAT_MBYTE
2406 if (has_mbyte)
2407 {
2408 colnr_T col;
2409 int i = 0;
2410
2411 for (col = 0; i < ccline.cmdpos; ++col)
2412 i += (*mb_ptr2len)(ccline.cmdbuff + i);
2413
2414 return col;
2415 }
2416 else
2417 # endif
2418 return ccline.cmdpos;
2419 }
2420 #endif
2421
2422 #if defined(FEAT_XIM) && (defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MACVIM))
2423 /*
2424 * If part of the command line is an IM preedit string, redraw it with
2425 * IM feedback attributes. The cursor position is restored after drawing.
2426 */
2427 static void
2428 redrawcmd_preedit()
2429 {
2430 if ((State & CMDLINE)
2431 # ifndef FEAT_GUI_MACVIM
2432 && xic != NULL
2433 # endif
2434 /* && im_get_status() doesn't work when using SCIM */
2435 && !p_imdisable
2436 && im_is_preediting())
2437 {
2438 int cmdpos = 0;
2439 int cmdspos;
2440 int old_row;
2441 int old_col;
2442 colnr_T col;
2443
2444 old_row = msg_row;
2445 old_col = msg_col;
2446 cmdspos = ((ccline.cmdfirstc != NUL) ? 1 : 0) + ccline.cmdindent;
2447
2448 # ifdef FEAT_MBYTE
2449 if (has_mbyte)
2450 {
2451 for (col = 0; col < preedit_start_col
2452 && cmdpos < ccline.cmdlen; ++col)
2453 {
2454 cmdspos += (*mb_ptr2cells)(ccline.cmdbuff + cmdpos);
2455 cmdpos += (*mb_ptr2len)(ccline.cmdbuff + cmdpos);
2456 }
2457 }
2458 else
2459 # endif
2460 {
2461 cmdspos += preedit_start_col;
2462 cmdpos += preedit_start_col;
2463 }
2464
2465 msg_row = cmdline_row + (cmdspos / (int)Columns);
2466 msg_col = cmdspos % (int)Columns;
2467 if (msg_row >= Rows)
2468 msg_row = Rows - 1;
2469
2470 for (col = 0; cmdpos < ccline.cmdlen; ++col)
2471 {
2472 int char_len;
2473 int char_attr;
2474
2475 char_attr = im_get_feedback_attr(col);
2476 if (char_attr < 0)
2477 break; /* end of preedit string */
2478
2479 # ifdef FEAT_MBYTE
2480 if (has_mbyte)
2481 char_len = (*mb_ptr2len)(ccline.cmdbuff + cmdpos);
2482 else
2483 # endif
2484 char_len = 1;
2485
2486 msg_outtrans_len_attr(ccline.cmdbuff + cmdpos, char_len, char_attr);
2487 cmdpos += char_len;
2488 }
2489
2490 msg_row = old_row;
2491 msg_col = old_col;
2492 }
2493 }
2494 #endif /* FEAT_XIM && (FEAT_GUI_GTK || FEAT_GUI_MACVIM) */
2495
2496 /*
2497 * Allocate a new command line buffer.
2498 * Assigns the new buffer to ccline.cmdbuff and ccline.cmdbufflen.
2499 * Returns the new value of ccline.cmdbuff and ccline.cmdbufflen.
2500 */
2501 static void
2502 alloc_cmdbuff(len)
2503 int len;
2504 {
2505 /*
2506 * give some extra space to avoid having to allocate all the time
2507 */
2508 if (len < 80)
2509 len = 100;
2510 else
2511 len += 20;
2512
2513 ccline.cmdbuff = alloc(len); /* caller should check for out-of-memory */
2514 ccline.cmdbufflen = len;
2515 }
2516
2517 /*
2518 * Re-allocate the command line to length len + something extra.
2519 * return FAIL for failure, OK otherwise
2520 */
2521 static int
2522 realloc_cmdbuff(len)
2523 int len;
2524 {
2525 char_u *p;
2526
2527 p = ccline.cmdbuff;
2528 alloc_cmdbuff(len); /* will get some more */
2529 if (ccline.cmdbuff == NULL) /* out of memory */
2530 {
2531 ccline.cmdbuff = p; /* keep the old one */
2532 return FAIL;
2533 }
2534 mch_memmove(ccline.cmdbuff, p, (size_t)ccline.cmdlen + 1);
2535 vim_free(p);
2536
2537 if (ccline.xpc != NULL
2538 && ccline.xpc->xp_pattern != NULL
2539 && ccline.xpc->xp_context != EXPAND_NOTHING
2540 && ccline.xpc->xp_context != EXPAND_UNSUCCESSFUL)
2541 {
2542 int i = (int)(ccline.xpc->xp_pattern - p);
2543
2544 /* If xp_pattern points inside the old cmdbuff it needs to be adjusted
2545 * to point into the newly allocated memory. */
2546 if (i >= 0 && i <= ccline.cmdlen)
2547 ccline.xpc->xp_pattern = ccline.cmdbuff + i;
2548 }
2549
2550 return OK;
2551 }
2552
2553 #if defined(FEAT_ARABIC) || defined(PROTO)
2554 static char_u *arshape_buf = NULL;
2555
2556 # if defined(EXITFREE) || defined(PROTO)
2557 void
2558 free_cmdline_buf()
2559 {
2560 vim_free(arshape_buf);
2561 }
2562 # endif
2563 #endif
2564
2565 /*
2566 * Draw part of the cmdline at the current cursor position. But draw stars
2567 * when cmdline_star is TRUE.
2568 */
2569 static void
2570 draw_cmdline(start, len)
2571 int start;
2572 int len;
2573 {
2574 #if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
2575 int i;
2576
2577 if (cmdline_star > 0)
2578 for (i = 0; i < len; ++i)
2579 {
2580 msg_putchar('*');
2581 # ifdef FEAT_MBYTE
2582 if (has_mbyte)
2583 i += (*mb_ptr2len)(ccline.cmdbuff + start + i) - 1;
2584 # endif
2585 }
2586 else
2587 #endif
2588 #ifdef FEAT_ARABIC
2589 if (p_arshape && !p_tbidi && enc_utf8 && len > 0)
2590 {
2591 static int buflen = 0;
2592 char_u *p;
2593 int j;
2594 int newlen = 0;
2595 int mb_l;
2596 int pc, pc1 = 0;
2597 int prev_c = 0;
2598 int prev_c1 = 0;
2599 int u8c;
2600 int u8cc[MAX_MCO];
2601 int nc = 0;
2602
2603 /*
2604 * Do arabic shaping into a temporary buffer. This is very
2605 * inefficient!
2606 */
2607 if (len * 2 + 2 > buflen)
2608 {
2609 /* Re-allocate the buffer. We keep it around to avoid a lot of
2610 * alloc()/free() calls. */
2611 vim_free(arshape_buf);
2612 buflen = len * 2 + 2;
2613 arshape_buf = alloc(buflen);
2614 if (arshape_buf == NULL)
2615 return; /* out of memory */
2616 }
2617
2618 if (utf_iscomposing(utf_ptr2char(ccline.cmdbuff + start)))
2619 {
2620 /* Prepend a space to draw the leading composing char on. */
2621 arshape_buf[0] = ' ';
2622 newlen = 1;
2623 }
2624
2625 for (j = start; j < start + len; j += mb_l)
2626 {
2627 p = ccline.cmdbuff + j;
2628 u8c = utfc_ptr2char_len(p, u8cc, start + len - j);
2629 mb_l = utfc_ptr2len_len(p, start + len - j);
2630 if (ARABIC_CHAR(u8c))
2631 {
2632 /* Do Arabic shaping. */
2633 if (cmdmsg_rl)
2634 {
2635 /* displaying from right to left */
2636 pc = prev_c;
2637 pc1 = prev_c1;
2638 prev_c1 = u8cc[0];
2639 if (j + mb_l >= start + len)
2640 nc = NUL;
2641 else
2642 nc = utf_ptr2char(p + mb_l);
2643 }
2644 else
2645 {
2646 /* displaying from left to right */
2647 if (j + mb_l >= start + len)
2648 pc = NUL;
2649 else
2650 {
2651 int pcc[MAX_MCO];
2652
2653 pc = utfc_ptr2char_len(p + mb_l, pcc,
2654 start + len - j - mb_l);
2655 pc1 = pcc[0];
2656 }
2657 nc = prev_c;
2658 }
2659 prev_c = u8c;
2660
2661 u8c = arabic_shape(u8c, NULL, &u8cc[0], pc, pc1, nc);
2662
2663 newlen += (*mb_char2bytes)(u8c, arshape_buf + newlen);
2664 if (u8cc[0] != 0)
2665 {
2666 newlen += (*mb_char2bytes)(u8cc[0], arshape_buf + newlen);
2667 if (u8cc[1] != 0)
2668 newlen += (*mb_char2bytes)(u8cc[1],
2669 arshape_buf + newlen);
2670 }
2671 }
2672 else
2673 {
2674 prev_c = u8c;
2675 mch_memmove(arshape_buf + newlen, p, mb_l);
2676 newlen += mb_l;
2677 }
2678 }
2679
2680 msg_outtrans_len(arshape_buf, newlen);
2681 }
2682 else
2683 #endif
2684 msg_outtrans_len(ccline.cmdbuff + start, len);
2685 }
2686
2687 /*
2688 * Put a character on the command line. Shifts the following text to the
2689 * right when "shift" is TRUE. Used for CTRL-V, CTRL-K, etc.
2690 * "c" must be printable (fit in one display cell)!
2691 */
2692 void
2693 putcmdline(c, shift)
2694 int c;
2695 int shift;
2696 {
2697 if (cmd_silent)
2698 return;
2699 msg_no_more = TRUE;
2700 msg_putchar(c);
2701 if (shift)
2702 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
2703 msg_no_more = FALSE;
2704 cursorcmd();
2705 }
2706
2707 /*
2708 * Undo a putcmdline(c, FALSE).
2709 */
2710 void
2711 unputcmdline()
2712 {
2713 if (cmd_silent)
2714 return;
2715 msg_no_more = TRUE;
2716 if (ccline.cmdlen == ccline.cmdpos)
2717 msg_putchar(' ');
2718 else
2719 draw_cmdline(ccline.cmdpos, 1);
2720 msg_no_more = FALSE;
2721 cursorcmd();
2722 }
2723
2724 /*
2725 * Put the given string, of the given length, onto the command line.
2726 * If len is -1, then STRLEN() is used to calculate the length.
2727 * If 'redraw' is TRUE then the new part of the command line, and the remaining
2728 * part will be redrawn, otherwise it will not. If this function is called
2729 * twice in a row, then 'redraw' should be FALSE and redrawcmd() should be
2730 * called afterwards.
2731 */
2732 int
2733 put_on_cmdline(str, len, redraw)
2734 char_u *str;
2735 int len;
2736 int redraw;
2737 {
2738 int retval;
2739 int i;
2740 int m;
2741 int c;
2742
2743 if (len < 0)
2744 len = (int)STRLEN(str);
2745
2746 /* Check if ccline.cmdbuff needs to be longer */
2747 if (ccline.cmdlen + len + 1 >= ccline.cmdbufflen)
2748 retval = realloc_cmdbuff(ccline.cmdlen + len);
2749 else
2750 retval = OK;
2751 if (retval == OK)
2752 {
2753 if (!ccline.overstrike)
2754 {
2755 mch_memmove(ccline.cmdbuff + ccline.cmdpos + len,
2756 ccline.cmdbuff + ccline.cmdpos,
2757 (size_t)(ccline.cmdlen - ccline.cmdpos));
2758 ccline.cmdlen += len;
2759 }
2760 else
2761 {
2762 #ifdef FEAT_MBYTE
2763 if (has_mbyte)
2764 {
2765 /* Count nr of characters in the new string. */
2766 m = 0;
2767 for (i = 0; i < len; i += (*mb_ptr2len)(str + i))
2768 ++m;
2769 /* Count nr of bytes in cmdline that are overwritten by these
2770 * characters. */
2771 for (i = ccline.cmdpos; i < ccline.cmdlen && m > 0;
2772 i += (*mb_ptr2len)(ccline.cmdbuff + i))
2773 --m;
2774 if (i < ccline.cmdlen)
2775 {
2776 mch_memmove(ccline.cmdbuff + ccline.cmdpos + len,
2777 ccline.cmdbuff + i, (size_t)(ccline.cmdlen - i));
2778 ccline.cmdlen += ccline.cmdpos + len - i;
2779 }
2780 else
2781 ccline.cmdlen = ccline.cmdpos + len;
2782 }
2783 else
2784 #endif
2785 if (ccline.cmdpos + len > ccline.cmdlen)
2786 ccline.cmdlen = ccline.cmdpos + len;
2787 }
2788 mch_memmove(ccline.cmdbuff + ccline.cmdpos, str, (size_t)len);
2789 ccline.cmdbuff[ccline.cmdlen] = NUL;
2790
2791 #ifdef FEAT_MBYTE
2792 if (enc_utf8)
2793 {
2794 /* When the inserted text starts with a composing character,
2795 * backup to the character before it. There could be two of them.
2796 */
2797 i = 0;
2798 c = utf_ptr2char(ccline.cmdbuff + ccline.cmdpos);
2799 while (ccline.cmdpos > 0 && utf_iscomposing(c))
2800 {
2801 i = (*mb_head_off)(ccline.cmdbuff,
2802 ccline.cmdbuff + ccline.cmdpos - 1) + 1;
2803 ccline.cmdpos -= i;
2804 len += i;
2805 c = utf_ptr2char(ccline.cmdbuff + ccline.cmdpos);
2806 }
2807 # ifdef FEAT_ARABIC
2808 if (i == 0 && ccline.cmdpos > 0 && arabic_maycombine(c))
2809 {
2810 /* Check the previous character for Arabic combining pair. */
2811 i = (*mb_head_off)(ccline.cmdbuff,
2812 ccline.cmdbuff + ccline.cmdpos - 1) + 1;
2813 if (arabic_combine(utf_ptr2char(ccline.cmdbuff
2814 + ccline.cmdpos - i), c))
2815 {
2816 ccline.cmdpos -= i;
2817 len += i;
2818 }
2819 else
2820 i = 0;
2821 }
2822 # endif
2823 if (i != 0)
2824 {
2825 /* Also backup the cursor position. */
2826 i = ptr2cells(ccline.cmdbuff + ccline.cmdpos);
2827 ccline.cmdspos -= i;
2828 msg_col -= i;
2829 if (msg_col < 0)
2830 {
2831 msg_col += Columns;
2832 --msg_row;
2833 }
2834 }
2835 }
2836 #endif
2837
2838 if (redraw && !cmd_silent)
2839 {
2840 msg_no_more = TRUE;
2841 i = cmdline_row;
2842 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
2843 /* Avoid clearing the rest of the line too often. */
2844 if (cmdline_row != i || ccline.overstrike)
2845 msg_clr_eos();
2846 msg_no_more = FALSE;
2847 }
2848 #ifdef FEAT_FKMAP
2849 /*
2850 * If we are in Farsi command mode, the character input must be in
2851 * Insert mode. So do not advance the cmdpos.
2852 */
2853 if (!cmd_fkmap)
2854 #endif
2855 {
2856 if (KeyTyped)
2857 {
2858 m = Columns * Rows;
2859 if (m < 0) /* overflow, Columns or Rows at weird value */
2860 m = MAXCOL;
2861 }
2862 else
2863 m = MAXCOL;
2864 for (i = 0; i < len; ++i)
2865 {
2866 c = cmdline_charsize(ccline.cmdpos);
2867 #ifdef FEAT_MBYTE
2868 /* count ">" for a double-wide char that doesn't fit. */
2869 if (has_mbyte)
2870 correct_cmdspos(ccline.cmdpos, c);
2871 #endif
2872 /* Stop cursor at the end of the screen, but do increment the
2873 * insert position, so that entering a very long command
2874 * works, even though you can't see it. */
2875 if (ccline.cmdspos + c < m)
2876 ccline.cmdspos += c;
2877 #ifdef FEAT_MBYTE
2878 if (has_mbyte)
2879 {
2880 c = (*mb_ptr2len)(ccline.cmdbuff + ccline.cmdpos) - 1;
2881 if (c > len - i - 1)
2882 c = len - i - 1;
2883 ccline.cmdpos += c;
2884 i += c;
2885 }
2886 #endif
2887 ++ccline.cmdpos;
2888 }
2889 }
2890 }
2891 if (redraw)
2892 msg_check();
2893 return retval;
2894 }
2895
2896 static struct cmdline_info prev_ccline;
2897 static int prev_ccline_used = FALSE;
2898
2899 /*
2900 * Save ccline, because obtaining the "=" register may execute "normal :cmd"
2901 * and overwrite it. But get_cmdline_str() may need it, thus make it
2902 * available globally in prev_ccline.
2903 */
2904 static void
2905 save_cmdline(ccp)
2906 struct cmdline_info *ccp;
2907 {
2908 if (!prev_ccline_used)
2909 {
2910 vim_memset(&prev_ccline, 0, sizeof(struct cmdline_info));
2911 prev_ccline_used = TRUE;
2912 }
2913 *ccp = prev_ccline;
2914 prev_ccline = ccline;
2915 ccline.cmdbuff = NULL;
2916 ccline.cmdprompt = NULL;
2917 ccline.xpc = NULL;
2918 }
2919
2920 /*
2921 * Restore ccline after it has been saved with save_cmdline().
2922 */
2923 static void
2924 restore_cmdline(ccp)
2925 struct cmdline_info *ccp;
2926 {
2927 ccline = prev_ccline;
2928 prev_ccline = *ccp;
2929 }
2930
2931 #if defined(FEAT_EVAL) || defined(PROTO)
2932 /*
2933 * Save the command line into allocated memory. Returns a pointer to be
2934 * passed to restore_cmdline_alloc() later.
2935 * Returns NULL when failed.
2936 */
2937 char_u *
2938 save_cmdline_alloc()
2939 {
2940 struct cmdline_info *p;
2941
2942 p = (struct cmdline_info *)alloc((unsigned)sizeof(struct cmdline_info));
2943 if (p != NULL)
2944 save_cmdline(p);
2945 return (char_u *)p;
2946 }
2947
2948 /*
2949 * Restore the command line from the return value of save_cmdline_alloc().
2950 */
2951 void
2952 restore_cmdline_alloc(p)
2953 char_u *p;
2954 {
2955 if (p != NULL)
2956 {
2957 restore_cmdline((struct cmdline_info *)p);
2958 vim_free(p);
2959 }
2960 }
2961 #endif
2962
2963 /*
2964 * paste a yank register into the command line.
2965 * used by CTRL-R command in command-line mode
2966 * insert_reg() can't be used here, because special characters from the
2967 * register contents will be interpreted as commands.
2968 *
2969 * return FAIL for failure, OK otherwise
2970 */
2971 static int
2972 cmdline_paste(regname, literally, remcr)
2973 int regname;
2974 int literally; /* Insert text literally instead of "as typed" */
2975 int remcr; /* remove trailing CR */
2976 {
2977 long i;
2978 char_u *arg;
2979 char_u *p;
2980 int allocated;
2981 struct cmdline_info save_ccline;
2982
2983 /* check for valid regname; also accept special characters for CTRL-R in
2984 * the command line */
2985 if (regname != Ctrl_F && regname != Ctrl_P && regname != Ctrl_W
2986 && regname != Ctrl_A && !valid_yank_reg(regname, FALSE))
2987 return FAIL;
2988
2989 /* A register containing CTRL-R can cause an endless loop. Allow using
2990 * CTRL-C to break the loop. */
2991 line_breakcheck();
2992 if (got_int)
2993 return FAIL;
2994
2995 #ifdef FEAT_CLIPBOARD
2996 regname = may_get_selection(regname);
2997 #endif
2998
2999 /* Need to save and restore ccline. And set "textlock" to avoid nasty
3000 * things like going to another buffer when evaluating an expression. */
3001 save_cmdline(&save_ccline);
3002 ++textlock;
3003 i = get_spec_reg(regname, &arg, &allocated, TRUE);
3004 --textlock;
3005 restore_cmdline(&save_ccline);
3006
3007 if (i)
3008 {
3009 /* Got the value of a special register in "arg". */
3010 if (arg == NULL)
3011 return FAIL;
3012
3013 /* When 'incsearch' is set and CTRL-R CTRL-W used: skip the duplicate
3014 * part of the word. */
3015 p = arg;
3016 if (p_is && regname == Ctrl_W)
3017 {
3018 char_u *w;
3019 int len;
3020
3021 /* Locate start of last word in the cmd buffer. */
3022 for (w = ccline.cmdbuff + ccline.cmdlen; w > ccline.cmdbuff; )
3023 {
3024 #ifdef FEAT_MBYTE
3025 if (has_mbyte)
3026 {
3027 len = (*mb_head_off)(ccline.cmdbuff, w - 1) + 1;
3028 if (!vim_iswordc(mb_ptr2char(w - len)))
3029 break;
3030 w -= len;
3031 }
3032 else
3033 #endif
3034 {
3035 if (!vim_iswordc(w[-1]))
3036 break;
3037 --w;
3038 }
3039 }
3040 len = (int)((ccline.cmdbuff + ccline.cmdlen) - w);
3041 if (p_ic ? STRNICMP(w, arg, len) == 0 : STRNCMP(w, arg, len) == 0)
3042 p += len;
3043 }
3044
3045 cmdline_paste_str(p, literally);
3046 if (allocated)
3047 vim_free(arg);
3048 return OK;
3049 }
3050
3051 return cmdline_paste_reg(regname, literally, remcr);
3052 }
3053
3054 /*
3055 * Put a string on the command line.
3056 * When "literally" is TRUE, insert literally.
3057 * When "literally" is FALSE, insert as typed, but don't leave the command
3058 * line.
3059 */
3060 void
3061 cmdline_paste_str(s, literally)
3062 char_u *s;
3063 int literally;
3064 {
3065 int c, cv;
3066
3067 if (literally)
3068 put_on_cmdline(s, -1, TRUE);
3069 else
3070 while (*s != NUL)
3071 {
3072 cv = *s;
3073 if (cv == Ctrl_V && s[1])
3074 ++s;
3075 #ifdef FEAT_MBYTE
3076 if (has_mbyte)
3077 c = mb_cptr2char_adv(&s);
3078 else
3079 #endif
3080 c = *s++;
3081 if (cv == Ctrl_V || c == ESC || c == Ctrl_C || c == CAR || c == NL
3082 #ifdef UNIX
3083 || c == intr_char
3084 #endif
3085 || (c == Ctrl_BSL && *s == Ctrl_N))
3086 stuffcharReadbuff(Ctrl_V);
3087 stuffcharReadbuff(c);
3088 }
3089 }
3090
3091 #ifdef FEAT_WILDMENU
3092 /*
3093 * Delete characters on the command line, from "from" to the current
3094 * position.
3095 */
3096 static void
3097 cmdline_del(from)
3098 int from;
3099 {
3100 mch_memmove(ccline.cmdbuff + from, ccline.cmdbuff + ccline.cmdpos,
3101 (size_t)(ccline.cmdlen - ccline.cmdpos + 1));
3102 ccline.cmdlen -= ccline.cmdpos - from;
3103 ccline.cmdpos = from;
3104 }
3105 #endif
3106
3107 /*
3108 * this function is called when the screen size changes and with incremental
3109 * search
3110 */
3111 void
3112 redrawcmdline()
3113 {
3114 if (cmd_silent)
3115 return;
3116 need_wait_return = FALSE;
3117 compute_cmdrow();
3118 redrawcmd();
3119 cursorcmd();
3120 }
3121
3122 static void
3123 redrawcmdprompt()
3124 {
3125 int i;
3126
3127 if (cmd_silent)
3128 return;
3129 if (ccline.cmdfirstc != NUL)
3130 msg_putchar(ccline.cmdfirstc);
3131 if (ccline.cmdprompt != NULL)
3132 {
3133 msg_puts_attr(ccline.cmdprompt, ccline.cmdattr);
3134 ccline.cmdindent = msg_col + (msg_row - cmdline_row) * Columns;
3135 /* do the reverse of set_cmdspos() */
3136 if (ccline.cmdfirstc != NUL)
3137 --ccline.cmdindent;
3138 }
3139 else
3140 for (i = ccline.cmdindent; i > 0; --i)
3141 msg_putchar(' ');
3142 }
3143
3144 /*
3145 * Redraw what is currently on the command line.
3146 */
3147 void
3148 redrawcmd()
3149 {
3150 if (cmd_silent)
3151 return;
3152
3153 /* when 'incsearch' is set there may be no command line while redrawing */
3154 if (ccline.cmdbuff == NULL)
3155 {
3156 windgoto(cmdline_row, 0);
3157 msg_clr_eos();
3158 return;
3159 }
3160
3161 msg_start();
3162 redrawcmdprompt();
3163
3164 /* Don't use more prompt, truncate the cmdline if it doesn't fit. */
3165 msg_no_more = TRUE;
3166 draw_cmdline(0, ccline.cmdlen);
3167 msg_clr_eos();
3168 msg_no_more = FALSE;
3169
3170 set_cmdspos_cursor();
3171
3172 /*
3173 * An emsg() before may have set msg_scroll. This is used in normal mode,
3174 * in cmdline mode we can reset them now.
3175 */
3176 msg_scroll = FALSE; /* next message overwrites cmdline */
3177
3178 /* Typing ':' at the more prompt may set skip_redraw. We don't want this
3179 * in cmdline mode */
3180 skip_redraw = FALSE;
3181 }
3182
3183 void
3184 compute_cmdrow()
3185 {
3186 if (exmode_active || msg_scrolled != 0)
3187 cmdline_row = Rows - 1;
3188 else
3189 cmdline_row = W_WINROW(lastwin) + lastwin->w_height
3190 + W_STATUS_HEIGHT(lastwin);
3191 }
3192
3193 static void
3194 cursorcmd()
3195 {
3196 if (cmd_silent)
3197 return;
3198
3199 #ifdef FEAT_RIGHTLEFT
3200 if (cmdmsg_rl)
3201 {
3202 msg_row = cmdline_row + (ccline.cmdspos / (int)(Columns - 1));
3203 msg_col = (int)Columns - (ccline.cmdspos % (int)(Columns - 1)) - 1;
3204 if (msg_row <= 0)
3205 msg_row = Rows - 1;
3206 }
3207 else
3208 #endif
3209 {
3210 msg_row = cmdline_row + (ccline.cmdspos / (int)Columns);
3211 msg_col = ccline.cmdspos % (int)Columns;
3212 if (msg_row >= Rows)
3213 msg_row = Rows - 1;
3214 }
3215
3216 windgoto(msg_row, msg_col);
3217 #if defined(FEAT_XIM) && (defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MACVIM))
3218 redrawcmd_preedit();
3219 #endif
3220 #ifdef MCH_CURSOR_SHAPE
3221 mch_update_cursor();
3222 #endif
3223 }
3224
3225 void
3226 gotocmdline(clr)
3227 int clr;
3228 {
3229 msg_start();
3230 #ifdef FEAT_RIGHTLEFT
3231 if (cmdmsg_rl)
3232 msg_col = Columns - 1;
3233 else
3234 #endif
3235 msg_col = 0; /* always start in column 0 */
3236 if (clr) /* clear the bottom line(s) */
3237 msg_clr_eos(); /* will reset clear_cmdline */
3238 windgoto(cmdline_row, 0);
3239 }
3240
3241 /*
3242 * Check the word in front of the cursor for an abbreviation.
3243 * Called when the non-id character "c" has been entered.
3244 * When an abbreviation is recognized it is removed from the text with
3245 * backspaces and the replacement string is inserted, followed by "c".
3246 */
3247 static int
3248 ccheck_abbr(c)
3249 int c;
3250 {
3251 if (p_paste || no_abbr) /* no abbreviations or in paste mode */
3252 return FALSE;
3253
3254 return check_abbr(c, ccline.cmdbuff, ccline.cmdpos, 0);
3255 }
3256
3257 /*
3258 * Return FAIL if this is not an appropriate context in which to do
3259 * completion of anything, return OK if it is (even if there are no matches).
3260 * For the caller, this means that the character is just passed through like a
3261 * normal character (instead of being expanded). This allows :s/^I^D etc.
3262 */
3263 static int
3264 nextwild(xp, type, options)
3265 expand_T *xp;
3266 int type;
3267 int options; /* extra options for ExpandOne() */
3268 {
3269 int i, j;
3270 char_u *p1;
3271 char_u *p2;
3272 int difflen;
3273 int v;
3274
3275 if (xp->xp_numfiles == -1)
3276 {
3277 set_expand_context(xp);
3278 cmd_showtail = expand_showtail(xp);
3279 }
3280
3281 if (xp->xp_context == EXPAND_UNSUCCESSFUL)
3282 {
3283 beep_flush();
3284 return OK; /* Something illegal on command line */
3285 }
3286 if (xp->xp_context == EXPAND_NOTHING)
3287 {
3288 /* Caller can use the character as a normal char instead */
3289 return FAIL;
3290 }
3291
3292 MSG_PUTS("..."); /* show that we are busy */
3293 out_flush();
3294
3295 i = (int)(xp->xp_pattern - ccline.cmdbuff);
3296 xp->xp_pattern_len = ccline.cmdpos - i;
3297
3298 if (type == WILD_NEXT || type == WILD_PREV)
3299 {
3300 /*
3301 * Get next/previous match for a previous expanded pattern.
3302 */
3303 p2 = ExpandOne(xp, NULL, NULL, 0, type);
3304 }
3305 else
3306 {
3307 /*
3308 * Translate string into pattern and expand it.
3309 */
3310 if ((p1 = addstar(xp->xp_pattern, xp->xp_pattern_len,
3311 xp->xp_context)) == NULL)
3312 p2 = NULL;
3313 else
3314 {
3315 p2 = ExpandOne(xp, p1,
3316 vim_strnsave(&ccline.cmdbuff[i], xp->xp_pattern_len),
3317 WILD_HOME_REPLACE|WILD_ADD_SLASH|WILD_SILENT|WILD_ESCAPE
3318 |options, type);
3319 vim_free(p1);
3320 /* longest match: make sure it is not shorter (happens with :help */
3321 if (p2 != NULL && type == WILD_LONGEST)
3322 {
3323 for (j = 0; j < xp->xp_pattern_len; ++j)
3324 if (ccline.cmdbuff[i + j] == '*'
3325 || ccline.cmdbuff[i + j] == '?')
3326 break;
3327 if ((int)STRLEN(p2) < j)
3328 {
3329 vim_free(p2);
3330 p2 = NULL;
3331 }
3332 }
3333 }
3334 }
3335
3336 if (p2 != NULL && !got_int)
3337 {
3338 difflen = (int)STRLEN(p2) - xp->xp_pattern_len;
3339 if (ccline.cmdlen + difflen > ccline.cmdbufflen - 4)
3340 {
3341 v = realloc_cmdbuff(ccline.cmdlen + difflen);
3342 xp->xp_pattern = ccline.cmdbuff + i;
3343 }
3344 else
3345 v = OK;
3346 if (v == OK)
3347 {
3348 mch_memmove(&ccline.cmdbuff[ccline.cmdpos + difflen],
3349 &ccline.cmdbuff[ccline.cmdpos],
3350 (size_t)(ccline.cmdlen - ccline.cmdpos + 1));
3351 mch_memmove(&ccline.cmdbuff[i], p2, STRLEN(p2));
3352 ccline.cmdlen += difflen;
3353 ccline.cmdpos += difflen;
3354 }
3355 }
3356 vim_free(p2);
3357
3358 redrawcmd();
3359 cursorcmd();
3360
3361 /* When expanding a ":map" command and no matches are found, assume that
3362 * the key is supposed to be inserted literally */
3363 if (xp->xp_context == EXPAND_MAPPINGS && p2 == NULL)
3364 return FAIL;
3365
3366 if (xp->xp_numfiles <= 0 && p2 == NULL)
3367 beep_flush();
3368 else if (xp->xp_numfiles == 1)
3369 /* free expanded pattern */
3370 (void)ExpandOne(xp, NULL, NULL, 0, WILD_FREE);
3371
3372 return OK;
3373 }
3374
3375 /*
3376 * Do wildcard expansion on the string 'str'.
3377 * Chars that should not be expanded must be preceded with a backslash.
3378 * Return a pointer to allocated memory containing the new string.
3379 * Return NULL for failure.
3380 *
3381 * "orig" is the originally expanded string, copied to allocated memory. It
3382 * should either be kept in orig_save or freed. When "mode" is WILD_NEXT or
3383 * WILD_PREV "orig" should be NULL.
3384 *
3385 * Results are cached in xp->xp_files and xp->xp_numfiles, except when "mode"
3386 * is WILD_EXPAND_FREE or WILD_ALL.
3387 *
3388 * mode = WILD_FREE: just free previously expanded matches
3389 * mode = WILD_EXPAND_FREE: normal expansion, do not keep matches
3390 * mode = WILD_EXPAND_KEEP: normal expansion, keep matches
3391 * mode = WILD_NEXT: use next match in multiple match, wrap to first
3392 * mode = WILD_PREV: use previous match in multiple match, wrap to first
3393 * mode = WILD_ALL: return all matches concatenated
3394 * mode = WILD_LONGEST: return longest matched part
3395 *
3396 * options = WILD_LIST_NOTFOUND: list entries without a match
3397 * options = WILD_HOME_REPLACE: do home_replace() for buffer names
3398 * options = WILD_USE_NL: Use '\n' for WILD_ALL
3399 * options = WILD_NO_BEEP: Don't beep for multiple matches
3400 * options = WILD_ADD_SLASH: add a slash after directory names
3401 * options = WILD_KEEP_ALL: don't remove 'wildignore' entries
3402 * options = WILD_SILENT: don't print warning messages
3403 * options = WILD_ESCAPE: put backslash before special chars
3404 *
3405 * The variables xp->xp_context and xp->xp_backslash must have been set!
3406 */
3407 char_u *
3408 ExpandOne(xp, str, orig, options, mode)
3409 expand_T *xp;
3410 char_u *str;
3411 char_u *orig; /* allocated copy of original of expanded string */
3412 int options;
3413 int mode;
3414 {
3415 char_u *ss = NULL;
3416 static int findex;
3417 static char_u *orig_save = NULL; /* kept value of orig */
3418 int orig_saved = FALSE;
3419 int i;
3420 long_u len;
3421 int non_suf_match; /* number without matching suffix */
3422
3423 /*
3424 * first handle the case of using an old match
3425 */
3426 if (mode == WILD_NEXT || mode == WILD_PREV)
3427 {
3428 if (xp->xp_numfiles > 0)
3429 {
3430 if (mode == WILD_PREV)
3431 {
3432 if (findex == -1)
3433 findex = xp->xp_numfiles;
3434 --findex;
3435 }
3436 else /* mode == WILD_NEXT */
3437 ++findex;
3438
3439 /*
3440 * When wrapping around, return the original string, set findex to
3441 * -1.
3442 */
3443 if (findex < 0)
3444 {
3445 if (orig_save == NULL)
3446 findex = xp->xp_numfiles - 1;
3447 else
3448 findex = -1;
3449 }
3450 if (findex >= xp->xp_numfiles)
3451 {
3452 if (orig_save == NULL)
3453 findex = 0;
3454 else
3455 findex = -1;
3456 }
3457 #ifdef FEAT_WILDMENU
3458 if (p_wmnu)
3459 win_redr_status_matches(xp, xp->xp_numfiles, xp->xp_files,
3460 findex, cmd_showtail);
3461 #endif
3462 if (findex == -1)
3463 return vim_strsave(orig_save);
3464 return vim_strsave(xp->xp_files[findex]);
3465 }
3466 else
3467 return NULL;
3468 }
3469
3470 /* free old names */
3471 if (xp->xp_numfiles != -1 && mode != WILD_ALL && mode != WILD_LONGEST)
3472 {
3473 FreeWild(xp->xp_numfiles, xp->xp_files);
3474 xp->xp_numfiles = -1;
3475 vim_free(orig_save);
3476 orig_save = NULL;
3477 }
3478 findex = 0;
3479
3480 if (mode == WILD_FREE) /* only release file name */
3481 return NULL;
3482
3483 if (xp->xp_numfiles == -1)
3484 {
3485 vim_free(orig_save);
3486 orig_save = orig;
3487 orig_saved = TRUE;
3488
3489 /*
3490 * Do the expansion.
3491 */
3492 if (ExpandFromContext(xp, str, &xp->xp_numfiles, &xp->xp_files,
3493 options) == FAIL)
3494 {
3495 #ifdef FNAME_ILLEGAL
3496 /* Illegal file name has been silently skipped. But when there
3497 * are wildcards, the real problem is that there was no match,
3498 * causing the pattern to be added, which has illegal characters.
3499 */
3500 if (!(options & WILD_SILENT) && (options & WILD_LIST_NOTFOUND))
3501 EMSG2(_(e_nomatch2), str);
3502 #endif
3503 }
3504 else if (xp->xp_numfiles == 0)
3505 {
3506 if (!(options & WILD_SILENT))
3507 EMSG2(_(e_nomatch2), str);
3508 }
3509 else
3510 {
3511 /* Escape the matches for use on the command line. */
3512 ExpandEscape(xp, str, xp->xp_numfiles, xp->xp_files, options);
3513
3514 /*
3515 * Check for matching suffixes in file names.
3516 */
3517 if (mode != WILD_ALL && mode != WILD_LONGEST)
3518 {
3519 if (xp->xp_numfiles)
3520 non_suf_match = xp->xp_numfiles;
3521 else
3522 non_suf_match = 1;
3523 if ((xp->xp_context == EXPAND_FILES
3524 || xp->xp_context == EXPAND_DIRECTORIES)
3525 && xp->xp_numfiles > 1)
3526 {
3527 /*
3528 * More than one match; check suffix.
3529 * The files will have been sorted on matching suffix in
3530 * expand_wildcards, only need to check the first two.
3531 */
3532 non_suf_match = 0;
3533 for (i = 0; i < 2; ++i)
3534 if (match_suffix(xp->xp_files[i]))
3535 ++non_suf_match;
3536 }
3537 if (non_suf_match != 1)
3538 {
3539 /* Can we ever get here unless it's while expanding
3540 * interactively? If not, we can get rid of this all
3541 * together. Don't really want to wait for this message
3542 * (and possibly have to hit return to continue!).
3543 */
3544 if (!(options & WILD_SILENT))
3545 EMSG(_(e_toomany));
3546 else if (!(options & WILD_NO_BEEP))
3547 beep_flush();
3548 }
3549 if (!(non_suf_match != 1 && mode == WILD_EXPAND_FREE))
3550 ss = vim_strsave(xp->xp_files[0]);
3551 }
3552 }
3553 }
3554
3555 /* Find longest common part */
3556 if (mode == WILD_LONGEST && xp->xp_numfiles > 0)
3557 {
3558 for (len = 0; xp->xp_files[0][len]; ++len)
3559 {
3560 for (i = 0; i < xp->xp_numfiles; ++i)
3561 {
3562 #ifdef CASE_INSENSITIVE_FILENAME
3563 if (xp->xp_context == EXPAND_DIRECTORIES
3564 || xp->xp_context == EXPAND_FILES
3565 || xp->xp_context == EXPAND_SHELLCMD
3566 || xp->xp_context == EXPAND_BUFFERS)
3567 {
3568 if (TOLOWER_LOC(xp->xp_files[i][len]) !=
3569 TOLOWER_LOC(xp->xp_files[0][len]))
3570 break;
3571 }
3572 else
3573 #endif
3574 if (xp->xp_files[i][len] != xp->xp_files[0][len])
3575 break;
3576 }
3577 if (i < xp->xp_numfiles)
3578 {
3579 if (!(options & WILD_NO_BEEP))
3580 vim_beep();
3581 break;
3582 }
3583 }
3584 ss = alloc((unsigned)len + 1);
3585 if (ss)
3586 vim_strncpy(ss, xp->xp_files[0], (size_t)len);
3587 findex = -1; /* next p_wc gets first one */
3588 }
3589
3590 /* Concatenate all matching names */
3591 if (mode == WILD_ALL && xp->xp_numfiles > 0)
3592 {
3593 len = 0;
3594 for (i = 0; i < xp->xp_numfiles; ++i)
3595 len += (long_u)STRLEN(xp->xp_files[i]) + 1;
3596 ss = lalloc(len, TRUE);
3597 if (ss != NULL)
3598 {
3599 *ss = NUL;
3600 for (i = 0; i < xp->xp_numfiles; ++i)
3601 {
3602 STRCAT(ss, xp->xp_files[i]);
3603 if (i != xp->xp_numfiles - 1)
3604 STRCAT(ss, (options & WILD_USE_NL) ? "\n" : " ");
3605 }
3606 }
3607 }
3608
3609 if (mode == WILD_EXPAND_FREE || mode == WILD_ALL)
3610 ExpandCleanup(xp);
3611
3612 /* Free "orig" if it wasn't stored in "orig_save". */
3613 if (!orig_saved)
3614 vim_free(orig);
3615
3616 return ss;
3617 }
3618
3619 /*
3620 * Prepare an expand structure for use.
3621 */
3622 void
3623 ExpandInit(xp)
3624 expand_T *xp;
3625 {
3626 xp->xp_pattern = NULL;
3627 xp->xp_pattern_len = 0;
3628 xp->xp_backslash = XP_BS_NONE;
3629 #ifndef BACKSLASH_IN_FILENAME
3630 xp->xp_shell = FALSE;
3631 #endif
3632 xp->xp_numfiles = -1;
3633 xp->xp_files = NULL;
3634 #if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL) && defined(FEAT_CMDL_COMPL)
3635 xp->xp_arg = NULL;
3636 #endif
3637 }
3638
3639 /*
3640 * Cleanup an expand structure after use.
3641 */
3642 void
3643 ExpandCleanup(xp)
3644 expand_T *xp;
3645 {
3646 if (xp->xp_numfiles >= 0)
3647 {
3648 FreeWild(xp->xp_numfiles, xp->xp_files);
3649 xp->xp_numfiles = -1;
3650 }
3651 }
3652
3653 void
3654 ExpandEscape(xp, str, numfiles, files, options)
3655 expand_T *xp;
3656 char_u *str;
3657 int numfiles;
3658 char_u **files;
3659 int options;
3660 {
3661 int i;
3662 char_u *p;
3663
3664 /*
3665 * May change home directory back to "~"
3666 */
3667 if (options & WILD_HOME_REPLACE)
3668 tilde_replace(str, numfiles, files);
3669
3670 if (options & WILD_ESCAPE)
3671 {
3672 if (xp->xp_context == EXPAND_FILES
3673 || xp->xp_context == EXPAND_SHELLCMD
3674 || xp->xp_context == EXPAND_BUFFERS
3675 || xp->xp_context == EXPAND_DIRECTORIES)
3676 {
3677 /*
3678 * Insert a backslash into a file name before a space, \, %, #
3679 * and wildmatch characters, except '~'.
3680 */
3681 for (i = 0; i < numfiles; ++i)
3682 {
3683 /* for ":set path=" we need to escape spaces twice */
3684 if (xp->xp_backslash == XP_BS_THREE)
3685 {
3686 p = vim_strsave_escaped(files[i], (char_u *)" ");
3687 if (p != NULL)
3688 {
3689 vim_free(files[i]);
3690 files[i] = p;
3691 #if defined(BACKSLASH_IN_FILENAME)
3692 p = vim_strsave_escaped(files[i], (char_u *)" ");
3693 if (p != NULL)
3694 {
3695 vim_free(files[i]);
3696 files[i] = p;
3697 }
3698 #endif
3699 }
3700 }
3701 #ifdef BACKSLASH_IN_FILENAME
3702 p = vim_strsave_fnameescape(files[i], FALSE);
3703 #else
3704 p = vim_strsave_fnameescape(files[i], xp->xp_shell);
3705 #endif
3706 if (p != NULL)
3707 {
3708 vim_free(files[i]);
3709 files[i] = p;
3710 }
3711
3712 /* If 'str' starts with "\~", replace "~" at start of
3713 * files[i] with "\~". */
3714 if (str[0] == '\\' && str[1] == '~' && files[i][0] == '~')
3715 escape_fname(&files[i]);
3716 }
3717 xp->xp_backslash = XP_BS_NONE;
3718
3719 /* If the first file starts with a '+' escape it. Otherwise it
3720 * could be seen as "+cmd". */
3721 if (*files[0] == '+')
3722 escape_fname(&files[0]);
3723 }
3724 else if (xp->xp_context == EXPAND_TAGS)
3725 {
3726 /*
3727 * Insert a backslash before characters in a tag name that
3728 * would terminate the ":tag" command.
3729 */
3730 for (i = 0; i < numfiles; ++i)
3731 {
3732 p = vim_strsave_escaped(files[i], (char_u *)"\\|\"");
3733 if (p != NULL)
3734 {
3735 vim_free(files[i]);
3736 files[i] = p;
3737 }
3738 }
3739 }
3740 }
3741 }
3742
3743 /*
3744 * Escape special characters in "fname" for when used as a file name argument
3745 * after a Vim command, or, when "shell" is non-zero, a shell command.
3746 * Returns the result in allocated memory.
3747 */
3748 char_u *
3749 vim_strsave_fnameescape(fname, shell)
3750 char_u *fname;
3751 int shell;
3752 {
3753 char_u *p;
3754 #ifdef BACKSLASH_IN_FILENAME
3755 char_u buf[20];
3756 int j = 0;
3757
3758 /* Don't escape '[' and '{' if they are in 'isfname'. */
3759 for (p = PATH_ESC_CHARS; *p != NUL; ++p)
3760 if ((*p != '[' && *p != '{') || !vim_isfilec(*p))
3761 buf[j++] = *p;
3762 buf[j] = NUL;
3763 p = vim_strsave_escaped(fname, buf);
3764 #else
3765 p = vim_strsave_escaped(fname, shell ? SHELL_ESC_CHARS : PATH_ESC_CHARS);
3766 if (shell && csh_like_shell() && p != NULL)
3767 {
3768 char_u *s;
3769
3770 /* For csh and similar shells need to put two backslashes before '!'.
3771 * One is taken by Vim, one by the shell. */
3772 s = vim_strsave_escaped(p, (char_u *)"!");
3773 vim_free(p);
3774 p = s;
3775 }
3776 #endif
3777
3778 /* '>' and '+' are special at the start of some commands, e.g. ":edit" and
3779 * ":write". "cd -" has a special meaning. */
3780 if (*p == '>' || *p == '+' || (*p == '-' && p[1] == NUL))
3781 escape_fname(&p);
3782
3783 return p;
3784 }
3785
3786 /*
3787 * Put a backslash before the file name in "pp", which is in allocated memory.
3788 */
3789 static void
3790 escape_fname(pp)
3791 char_u **pp;
3792 {
3793 char_u *p;
3794
3795 p = alloc((unsigned)(STRLEN(*pp) + 2));
3796 if (p != NULL)
3797 {
3798 p[0] = '\\';
3799 STRCPY(p + 1, *pp);
3800 vim_free(*pp);
3801 *pp = p;
3802 }
3803 }
3804
3805 /*
3806 * For each file name in files[num_files]:
3807 * If 'orig_pat' starts with "~/", replace the home directory with "~".
3808 */
3809 void
3810 tilde_replace(orig_pat, num_files, files)
3811 char_u *orig_pat;
3812 int num_files;
3813 char_u **files;
3814 {
3815 int i;
3816 char_u *p;
3817
3818 if (orig_pat[0] == '~' && vim_ispathsep(orig_pat[1]))
3819 {
3820 for (i = 0; i < num_files; ++i)
3821 {
3822 p = home_replace_save(NULL, files[i]);
3823 if (p != NULL)
3824 {
3825 vim_free(files[i]);
3826 files[i] = p;
3827 }
3828 }
3829 }
3830 }
3831
3832 /*
3833 * Show all matches for completion on the command line.
3834 * Returns EXPAND_NOTHING when the character that triggered expansion should
3835 * be inserted like a normal character.
3836 */
3837 static int
3838 showmatches(xp, wildmenu)
3839 expand_T *xp;
3840 int wildmenu UNUSED;
3841 {
3842 #define L_SHOWFILE(m) (showtail ? sm_gettail(files_found[m]) : files_found[m])
3843 int num_files;
3844 char_u **files_found;
3845 int i, j, k;
3846 int maxlen;
3847 int lines;
3848 int columns;
3849 char_u *p;
3850 int lastlen;
3851 int attr;
3852 int showtail;
3853
3854 if (xp->xp_numfiles == -1)
3855 {
3856 set_expand_context(xp);
3857 i = expand_cmdline(xp, ccline.cmdbuff, ccline.cmdpos,
3858 &num_files, &files_found);
3859 showtail = expand_showtail(xp);
3860 if (i != EXPAND_OK)
3861 return i;
3862
3863 }
3864 else
3865 {
3866 num_files = xp->xp_numfiles;
3867 files_found = xp->xp_files;
3868 showtail = cmd_showtail;
3869 }
3870
3871 #ifdef FEAT_WILDMENU
3872 if (!wildmenu)
3873 {
3874 #endif
3875 msg_didany = FALSE; /* lines_left will be set */
3876 msg_start(); /* prepare for paging */
3877 msg_putchar('\n');
3878 out_flush();
3879 cmdline_row = msg_row;
3880 msg_didany = FALSE; /* lines_left will be set again */
3881 msg_start(); /* prepare for paging */
3882 #ifdef FEAT_WILDMENU
3883 }
3884 #endif
3885
3886 if (got_int)
3887 got_int = FALSE; /* only int. the completion, not the cmd line */
3888 #ifdef FEAT_WILDMENU
3889 else if (wildmenu)
3890 win_redr_status_matches(xp, num_files, files_found, 0, showtail);
3891 #endif
3892 else
3893 {
3894 /* find the length of the longest file name */
3895 maxlen = 0;
3896 for (i = 0; i < num_files; ++i)
3897 {
3898 if (!showtail && (xp->xp_context == EXPAND_FILES
3899 || xp->xp_context == EXPAND_SHELLCMD
3900 || xp->xp_context == EXPAND_BUFFERS))
3901 {
3902 home_replace(NULL, files_found[i], NameBuff, MAXPATHL, TRUE);
3903 j = vim_strsize(NameBuff);
3904 }
3905 else
3906 j = vim_strsize(L_SHOWFILE(i));
3907 if (j > maxlen)
3908 maxlen = j;
3909 }
3910
3911 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3912 lines = num_files;
3913 else
3914 {
3915 /* compute the number of columns and lines for the listing */
3916 maxlen += 2; /* two spaces between file names */
3917 columns = ((int)Columns + 2) / maxlen;
3918 if (columns < 1)
3919 columns = 1;
3920 lines = (num_files + columns - 1) / columns;
3921 }
3922
3923 attr = hl_attr(HLF_D); /* find out highlighting for directories */
3924
3925 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3926 {
3927 MSG_PUTS_ATTR(_("tagname"), hl_attr(HLF_T));
3928 msg_clr_eos();
3929 msg_advance(maxlen - 3);
3930 MSG_PUTS_ATTR(_(" kind file\n"), hl_attr(HLF_T));
3931 }
3932
3933 /* list the files line by line */
3934 for (i = 0; i < lines; ++i)
3935 {
3936 lastlen = 999;
3937 for (k = i; k < num_files; k += lines)
3938 {
3939 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3940 {
3941 msg_outtrans_attr(files_found[k], hl_attr(HLF_D));
3942 p = files_found[k] + STRLEN(files_found[k]) + 1;
3943 msg_advance(maxlen + 1);
3944 msg_puts(p);
3945 msg_advance(maxlen + 3);
3946 msg_puts_long_attr(p + 2, hl_attr(HLF_D));
3947 break;
3948 }
3949 for (j = maxlen - lastlen; --j >= 0; )
3950 msg_putchar(' ');
3951 if (xp->xp_context == EXPAND_FILES
3952 || xp->xp_context == EXPAND_SHELLCMD
3953 || xp->xp_context == EXPAND_BUFFERS)
3954 {
3955 /* highlight directories */
3956 j = (mch_isdir(files_found[k]));
3957 if (showtail)
3958 p = L_SHOWFILE(k);
3959 else
3960 {
3961 home_replace(NULL, files_found[k], NameBuff, MAXPATHL,
3962 TRUE);
3963 p = NameBuff;
3964 }
3965 }
3966 else
3967 {
3968 j = FALSE;
3969 p = L_SHOWFILE(k);
3970 }
3971 lastlen = msg_outtrans_attr(p, j ? attr : 0);
3972 }
3973 if (msg_col > 0) /* when not wrapped around */
3974 {
3975 msg_clr_eos();
3976 msg_putchar('\n');
3977 }
3978 out_flush(); /* show one line at a time */
3979 if (got_int)
3980 {
3981 got_int = FALSE;
3982 break;
3983 }
3984 }
3985
3986 /*
3987 * we redraw the command below the lines that we have just listed
3988 * This is a bit tricky, but it saves a lot of screen updating.
3989 */
3990 cmdline_row = msg_row; /* will put it back later */
3991 }
3992
3993 if (xp->xp_numfiles == -1)
3994 FreeWild(num_files, files_found);
3995
3996 return EXPAND_OK;
3997 }
3998
3999 /*
4000 * Private gettail for showmatches() (and win_redr_status_matches()):
4001 * Find tail of file name path, but ignore trailing "/".
4002 */
4003 char_u *
4004 sm_gettail(s)
4005 char_u *s;
4006 {
4007 char_u *p;
4008 char_u *t = s;
4009 int had_sep = FALSE;
4010
4011 for (p = s; *p != NUL; )
4012 {
4013 if (vim_ispathsep(*p)
4014 #ifdef BACKSLASH_IN_FILENAME
4015 && !rem_backslash(p)
4016 #endif
4017 )
4018 had_sep = TRUE;
4019 else if (had_sep)
4020 {
4021 t = p;
4022 had_sep = FALSE;
4023 }
4024 mb_ptr_adv(p);
4025 }
4026 return t;
4027 }
4028
4029 /*
4030 * Return TRUE if we only need to show the tail of completion matches.
4031 * When not completing file names or there is a wildcard in the path FALSE is
4032 * returned.
4033 */
4034 static int
4035 expand_showtail(xp)
4036 expand_T *xp;
4037 {
4038 char_u *s;
4039 char_u *end;
4040
4041 /* When not completing file names a "/" may mean something different. */
4042 if (xp->xp_context != EXPAND_FILES
4043 && xp->xp_context != EXPAND_SHELLCMD
4044 && xp->xp_context != EXPAND_DIRECTORIES)
4045 return FALSE;
4046
4047 end = gettail(xp->xp_pattern);
4048 if (end == xp->xp_pattern) /* there is no path separator */
4049 return FALSE;
4050
4051 for (s = xp->xp_pattern; s < end; s++)
4052 {
4053 /* Skip escaped wildcards. Only when the backslash is not a path
4054 * separator, on DOS the '*' "path\*\file" must not be skipped. */
4055 if (rem_backslash(s))
4056 ++s;
4057 else if (vim_strchr((char_u *)"*?[", *s) != NULL)
4058 return FALSE;
4059 }
4060 return TRUE;
4061 }
4062
4063 /*
4064 * Prepare a string for expansion.
4065 * When expanding file names: The string will be used with expand_wildcards().
4066 * Copy the file name into allocated memory and add a '*' at the end.
4067 * When expanding other names: The string will be used with regcomp(). Copy
4068 * the name into allocated memory and prepend "^".
4069 */
4070 char_u *
4071 addstar(fname, len, context)
4072 char_u *fname;
4073 int len;
4074 int context; /* EXPAND_FILES etc. */
4075 {
4076 char_u *retval;
4077 int i, j;
4078 int new_len;
4079 char_u *tail;
4080
4081 if (context != EXPAND_FILES
4082 && context != EXPAND_SHELLCMD
4083 && context != EXPAND_DIRECTORIES)
4084 {
4085 /*
4086 * Matching will be done internally (on something other than files).
4087 * So we convert the file-matching-type wildcards into our kind for
4088 * use with vim_regcomp(). First work out how long it will be:
4089 */
4090
4091 /* For help tags the translation is done in find_help_tags().
4092 * For a tag pattern starting with "/" no translation is needed. */
4093 if (context == EXPAND_HELP
4094 || context == EXPAND_COLORS
4095 || context == EXPAND_COMPILER
4096 || (context == EXPAND_TAGS && fname[0] == '/'))
4097 retval = vim_strnsave(fname, len);
4098 else
4099 {
4100 new_len = len + 2; /* +2 for '^' at start, NUL at end */
4101 for (i = 0; i < len; i++)
4102 {
4103 if (fname[i] == '*' || fname[i] == '~')
4104 new_len++; /* '*' needs to be replaced by ".*"
4105 '~' needs to be replaced by "\~" */
4106
4107 /* Buffer names are like file names. "." should be literal */
4108 if (context == EXPAND_BUFFERS && fname[i] == '.')
4109 new_len++; /* "." becomes "\." */
4110
4111 /* Custom expansion takes care of special things, match
4112 * backslashes literally (perhaps also for other types?) */
4113 if ((context == EXPAND_USER_DEFINED
4114 || context == EXPAND_USER_LIST) && fname[i] == '\\')
4115 new_len++; /* '\' becomes "\\" */
4116 }
4117 retval = alloc(new_len);
4118 if (retval != NULL)
4119 {
4120 retval[0] = '^';
4121 j = 1;
4122 for (i = 0; i < len; i++, j++)
4123 {
4124 /* Skip backslash. But why? At least keep it for custom
4125 * expansion. */
4126 if (context != EXPAND_USER_DEFINED
4127 && context != EXPAND_USER_LIST
4128 && fname[i] == '\\'
4129 && ++i == len)
4130 break;
4131
4132 switch (fname[i])
4133 {
4134 case '*': retval[j++] = '.';
4135 break;
4136 case '~': retval[j++] = '\\';
4137 break;
4138 case '?': retval[j] = '.';
4139 continue;
4140 case '.': if (context == EXPAND_BUFFERS)
4141 retval[j++] = '\\';
4142 break;
4143 case '\\': if (context == EXPAND_USER_DEFINED
4144 || context == EXPAND_USER_LIST)
4145 retval[j++] = '\\';
4146 break;
4147 }
4148 retval[j] = fname[i];
4149 }
4150 retval[j] = NUL;
4151 }
4152 }
4153 }
4154 else
4155 {
4156 retval = alloc(len + 4);
4157 if (retval != NULL)
4158 {
4159 vim_strncpy(retval, fname, len);
4160
4161 /*
4162 * Don't add a star to *, ~, ~user, $var or `cmd`.
4163 * * would become **, which walks the whole tree.
4164 * ~ would be at the start of the file name, but not the tail.
4165 * $ could be anywhere in the tail.
4166 * ` could be anywhere in the file name.
4167 * When the name ends in '$' don't add a star, remove the '$'.
4168 */
4169 tail = gettail(retval);
4170 if ((*retval != '~' || tail != retval)
4171 && (len == 0 || retval[len - 1] != '*')
4172 && vim_strchr(tail, '$') == NULL
4173 && vim_strchr(retval, '`') == NULL)
4174 retval[len++] = '*';
4175 else if (len > 0 && retval[len - 1] == '$')
4176 --len;
4177 retval[len] = NUL;
4178 }
4179 }
4180 return retval;
4181 }
4182
4183 /*
4184 * Must parse the command line so far to work out what context we are in.
4185 * Completion can then be done based on that context.
4186 * This routine sets the variables:
4187 * xp->xp_pattern The start of the pattern to be expanded within
4188 * the command line (ends at the cursor).
4189 * xp->xp_context The type of thing to expand. Will be one of:
4190 *
4191 * EXPAND_UNSUCCESSFUL Used sometimes when there is something illegal on
4192 * the command line, like an unknown command. Caller
4193 * should beep.
4194 * EXPAND_NOTHING Unrecognised context for completion, use char like
4195 * a normal char, rather than for completion. eg
4196 * :s/^I/
4197 * EXPAND_COMMANDS Cursor is still touching the command, so complete
4198 * it.
4199 * EXPAND_BUFFERS Complete file names for :buf and :sbuf commands.
4200 * EXPAND_FILES After command with XFILE set, or after setting
4201 * with P_EXPAND set. eg :e ^I, :w>>^I
4202 * EXPAND_DIRECTORIES In some cases this is used instead of the latter
4203 * when we know only directories are of interest. eg
4204 * :set dir=^I
4205 * EXPAND_SHELLCMD After ":!cmd", ":r !cmd" or ":w !cmd".
4206 * EXPAND_SETTINGS Complete variable names. eg :set d^I
4207 * EXPAND_BOOL_SETTINGS Complete boolean variables only, eg :set no^I
4208 * EXPAND_TAGS Complete tags from the files in p_tags. eg :ta a^I
4209 * EXPAND_TAGS_LISTFILES As above, but list filenames on ^D, after :tselect
4210 * EXPAND_HELP Complete tags from the file 'helpfile'/tags
4211 * EXPAND_EVENTS Complete event names
4212 * EXPAND_SYNTAX Complete :syntax command arguments
4213 * EXPAND_HIGHLIGHT Complete highlight (syntax) group names
4214 * EXPAND_AUGROUP Complete autocommand group names
4215 * EXPAND_USER_VARS Complete user defined variable names, eg :unlet a^I
4216 * EXPAND_MAPPINGS Complete mapping and abbreviation names,
4217 * eg :unmap a^I , :cunab x^I
4218 * EXPAND_FUNCTIONS Complete internal or user defined function names,
4219 * eg :call sub^I
4220 * EXPAND_USER_FUNC Complete user defined function names, eg :delf F^I
4221 * EXPAND_EXPRESSION Complete internal or user defined function/variable
4222 * names in expressions, eg :while s^I
4223 * EXPAND_ENV_VARS Complete environment variable names
4224 */
4225 static void
4226 set_expand_context(xp)
4227 expand_T *xp;
4228 {
4229 /* only expansion for ':', '>' and '=' command-lines */
4230 if (ccline.cmdfirstc != ':'
4231 #ifdef FEAT_EVAL
4232 && ccline.cmdfirstc != '>' && ccline.cmdfirstc != '='
4233 && !ccline.input_fn
4234 #endif
4235 )
4236 {
4237 xp->xp_context = EXPAND_NOTHING;
4238 return;
4239 }
4240 set_cmd_context(xp, ccline.cmdbuff, ccline.cmdlen, ccline.cmdpos);
4241 }
4242
4243 void
4244 set_cmd_context(xp, str, len, col)
4245 expand_T *xp;
4246 char_u *str; /* start of command line */
4247 int len; /* length of command line (excl. NUL) */
4248 int col; /* position of cursor */
4249 {
4250 int old_char = NUL;
4251 char_u *nextcomm;
4252
4253 /*
4254 * Avoid a UMR warning from Purify, only save the character if it has been
4255 * written before.
4256 */
4257 if (col < len)
4258 old_char = str[col];
4259 str[col] = NUL;
4260 nextcomm = str;
4261
4262 #ifdef FEAT_EVAL
4263 if (ccline.cmdfirstc == '=')
4264 {
4265 # ifdef FEAT_CMDL_COMPL
4266 /* pass CMD_SIZE because there is no real command */
4267 set_context_for_expression(xp, str, CMD_SIZE);
4268 # endif
4269 }
4270 else if (ccline.input_fn)
4271 {
4272 xp->xp_context = ccline.xp_context;
4273 xp->xp_pattern = ccline.cmdbuff;
4274 # if defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)
4275 xp->xp_arg = ccline.xp_arg;
4276 # endif
4277 }
4278 else
4279 #endif
4280 while (nextcomm != NULL)
4281 nextcomm = set_one_cmd_context(xp, nextcomm);
4282
4283 str[col] = old_char;
4284 }
4285
4286 /*
4287 * Expand the command line "str" from context "xp".
4288 * "xp" must have been set by set_cmd_context().
4289 * xp->xp_pattern points into "str", to where the text that is to be expanded
4290 * starts.
4291 * Returns EXPAND_UNSUCCESSFUL when there is something illegal before the
4292 * cursor.
4293 * Returns EXPAND_NOTHING when there is nothing to expand, might insert the
4294 * key that triggered expansion literally.
4295 * Returns EXPAND_OK otherwise.
4296 */
4297 int
4298 expand_cmdline(xp, str, col, matchcount, matches)
4299 expand_T *xp;
4300 char_u *str; /* start of command line */
4301 int col; /* position of cursor */
4302 int *matchcount; /* return: nr of matches */
4303 char_u ***matches; /* return: array of pointers to matches */
4304 {
4305 char_u *file_str = NULL;
4306
4307 if (xp->xp_context == EXPAND_UNSUCCESSFUL)
4308 {
4309 beep_flush();
4310 return EXPAND_UNSUCCESSFUL; /* Something illegal on command line */
4311 }
4312 if (xp->xp_context == EXPAND_NOTHING)
4313 {
4314 /* Caller can use the character as a normal char instead */
4315 return EXPAND_NOTHING;
4316 }
4317
4318 /* add star to file name, or convert to regexp if not exp. files. */
4319 xp->xp_pattern_len = (int)(str + col - xp->xp_pattern);
4320 file_str = addstar(xp->xp_pattern, xp->xp_pattern_len, xp->xp_context);
4321 if (file_str == NULL)
4322 return EXPAND_UNSUCCESSFUL;
4323
4324 /* find all files that match the description */
4325 if (ExpandFromContext(xp, file_str, matchcount, matches,
4326 WILD_ADD_SLASH|WILD_SILENT) == FAIL)
4327 {
4328 *matchcount = 0;
4329 *matches = NULL;
4330 }
4331 vim_free(file_str);
4332
4333 return EXPAND_OK;
4334 }
4335
4336 #ifdef FEAT_MULTI_LANG
4337 /*
4338 * Cleanup matches for help tags: remove "@en" if "en" is the only language.
4339 */
4340 static void cleanup_help_tags __ARGS((int num_file, char_u **file));
4341
4342 static void
4343 cleanup_help_tags(num_file, file)
4344 int num_file;
4345 char_u **file;
4346 {
4347 int i, j;
4348 int len;
4349
4350 for (i = 0; i < num_file; ++i)
4351 {
4352 len = (int)STRLEN(file[i]) - 3;
4353 if (len > 0 && STRCMP(file[i] + len, "@en") == 0)
4354 {
4355 /* Sorting on priority means the same item in another language may
4356 * be anywhere. Search all items for a match up to the "@en". */
4357 for (j = 0; j < num_file; ++j)
4358 if (j != i
4359 && (int)STRLEN(file[j]) == len + 3
4360 && STRNCMP(file[i], file[j], len + 1) == 0)
4361 break;
4362 if (j == num_file)
4363 file[i][len] = NUL;
4364 }
4365 }
4366 }
4367 #endif
4368
4369 /*
4370 * Do the expansion based on xp->xp_context and "pat".
4371 */
4372 static int
4373 ExpandFromContext(xp, pat, num_file, file, options)
4374 expand_T *xp;
4375 char_u *pat;
4376 int *num_file;
4377 char_u ***file;
4378 int options;
4379 {
4380 #ifdef FEAT_CMDL_COMPL
4381 regmatch_T regmatch;
4382 #endif
4383 int ret;
4384 int flags;
4385
4386 flags = EW_DIR; /* include directories */
4387 if (options & WILD_LIST_NOTFOUND)
4388 flags |= EW_NOTFOUND;
4389 if (options & WILD_ADD_SLASH)
4390 flags |= EW_ADDSLASH;
4391 if (options & WILD_KEEP_ALL)
4392 flags |= EW_KEEPALL;
4393 if (options & WILD_SILENT)
4394 flags |= EW_SILENT;
4395
4396 if (xp->xp_context == EXPAND_FILES || xp->xp_context == EXPAND_DIRECTORIES)
4397 {
4398 /*
4399 * Expand file or directory names.
4400 */
4401 int free_pat = FALSE;
4402 int i;
4403
4404 /* for ":set path=" and ":set tags=" halve backslashes for escaped
4405 * space */
4406 if (xp->xp_backslash != XP_BS_NONE)
4407 {
4408 free_pat = TRUE;
4409 pat = vim_strsave(pat);
4410 for (i = 0; pat[i]; ++i)
4411 if (pat[i] == '\\')
4412 {
4413 if (xp->xp_backslash == XP_BS_THREE
4414 && pat[i + 1] == '\\'
4415 && pat[i + 2] == '\\'
4416 && pat[i + 3] == ' ')
4417 STRMOVE(pat + i, pat + i + 3);
4418 if (xp->xp_backslash == XP_BS_ONE
4419 && pat[i + 1] == ' ')
4420 STRMOVE(pat + i, pat + i + 1);
4421 }
4422 }
4423
4424 if (xp->xp_context == EXPAND_FILES)
4425 flags |= EW_FILE;
4426 else
4427 flags = (flags | EW_DIR) & ~EW_FILE;
4428 /* Expand wildcards, supporting %:h and the like. */
4429 ret = expand_wildcards_eval(&pat, num_file, file, flags);
4430 if (free_pat)
4431 vim_free(pat);
4432 return ret;
4433 }
4434
4435 *file = (char_u **)"";
4436 *num_file = 0;
4437 if (xp->xp_context == EXPAND_HELP)
4438 {
4439 /* With an empty argument we would get all the help tags, which is
4440 * very slow. Get matches for "help" instead. */
4441 if (find_help_tags(*pat == NUL ? (char_u *)"help" : pat,
4442 num_file, file, FALSE) == OK)
4443 {
4444 #ifdef FEAT_MULTI_LANG
4445 cleanup_help_tags(*num_file, *file);
4446 #endif
4447 return OK;
4448 }
4449 return FAIL;
4450 }
4451
4452 #ifndef FEAT_CMDL_COMPL
4453 return FAIL;
4454 #else
4455 if (xp->xp_context == EXPAND_SHELLCMD)
4456 return expand_shellcmd(pat, num_file, file, flags);
4457 if (xp->xp_context == EXPAND_OLD_SETTING)
4458 return ExpandOldSetting(num_file, file);
4459 if (xp->xp_context == EXPAND_BUFFERS)
4460 return ExpandBufnames(pat, num_file, file, options);
4461 if (xp->xp_context == EXPAND_TAGS
4462 || xp->xp_context == EXPAND_TAGS_LISTFILES)
4463 return expand_tags(xp->xp_context == EXPAND_TAGS, pat, num_file, file);
4464 if (xp->xp_context == EXPAND_COLORS)
4465 return ExpandRTDir(pat, num_file, file, "colors");
4466 if (xp->xp_context == EXPAND_COMPILER)
4467 return ExpandRTDir(pat, num_file, file, "compiler");
4468 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4469 if (xp->xp_context == EXPAND_USER_LIST)
4470 return ExpandUserList(xp, num_file, file);
4471 # endif
4472
4473 regmatch.regprog = vim_regcomp(pat, p_magic ? RE_MAGIC : 0);
4474 if (regmatch.regprog == NULL)
4475 return FAIL;
4476
4477 /* set ignore-case according to p_ic, p_scs and pat */
4478 regmatch.rm_ic = ignorecase(pat);
4479
4480 if (xp->xp_context == EXPAND_SETTINGS
4481 || xp->xp_context == EXPAND_BOOL_SETTINGS)
4482 ret = ExpandSettings(xp, &regmatch, num_file, file);
4483 else if (xp->xp_context == EXPAND_MAPPINGS)
4484 ret = ExpandMappings(&regmatch, num_file, file);
4485 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4486 else if (xp->xp_context == EXPAND_USER_DEFINED)
4487 ret = ExpandUserDefined(xp, &regmatch, num_file, file);
4488 # endif
4489 else
4490 {
4491 static struct expgen
4492 {
4493 int context;
4494 char_u *((*func)__ARGS((expand_T *, int)));
4495 int ic;
4496 } tab[] =
4497 {
4498 {EXPAND_COMMANDS, get_command_name, FALSE},
4499 #ifdef FEAT_USR_CMDS
4500 {EXPAND_USER_COMMANDS, get_user_commands, FALSE},
4501 {EXPAND_USER_CMD_FLAGS, get_user_cmd_flags, FALSE},
4502 {EXPAND_USER_NARGS, get_user_cmd_nargs, FALSE},
4503 {EXPAND_USER_COMPLETE, get_user_cmd_complete, FALSE},
4504 #endif
4505 #ifdef FEAT_EVAL
4506 {EXPAND_USER_VARS, get_user_var_name, FALSE},
4507 {EXPAND_FUNCTIONS, get_function_name, FALSE},
4508 {EXPAND_USER_FUNC, get_user_func_name, FALSE},
4509 {EXPAND_EXPRESSION, get_expr_name, FALSE},
4510 #endif
4511 #ifdef FEAT_MENU
4512 {EXPAND_MENUS, get_menu_name, FALSE},
4513 {EXPAND_MENUNAMES, get_menu_names, FALSE},
4514 #endif
4515 #ifdef FEAT_SYN_HL
4516 {EXPAND_SYNTAX, get_syntax_name, TRUE},
4517 #endif
4518 {EXPAND_HIGHLIGHT, get_highlight_name, TRUE},
4519 #ifdef FEAT_AUTOCMD
4520 {EXPAND_EVENTS, get_event_name, TRUE},
4521 {EXPAND_AUGROUP, get_augroup_name, TRUE},
4522 #endif
4523 #ifdef FEAT_CSCOPE
4524 {EXPAND_CSCOPE, get_cscope_name, TRUE},
4525 #endif
4526 #ifdef FEAT_SIGNS
4527 {EXPAND_SIGN, get_sign_name, TRUE},
4528 #endif
4529 #if (defined(HAVE_LOCALE_H) || defined(X_LOCALE)) \
4530 && (defined(FEAT_GETTEXT) || defined(FEAT_MBYTE))
4531 {EXPAND_LANGUAGE, get_lang_arg, TRUE},
4532 #endif
4533 {EXPAND_ENV_VARS, get_env_name, TRUE},
4534 #ifdef FEAT_GUI_MACVIM
4535 {EXPAND_MACACTION, get_macaction_name, FALSE},
4536 #endif
4537 };
4538 int i;
4539
4540 /*
4541 * Find a context in the table and call the ExpandGeneric() with the
4542 * right function to do the expansion.
4543 */
4544 ret = FAIL;
4545 for (i = 0; i < (int)(sizeof(tab) / sizeof(struct expgen)); ++i)
4546 if (xp->xp_context == tab[i].context)
4547 {
4548 if (tab[i].ic)
4549 regmatch.rm_ic = TRUE;
4550 ret = ExpandGeneric(xp, &regmatch, num_file, file, tab[i].func);
4551 break;
4552 }
4553 }
4554
4555 vim_free(regmatch.regprog);
4556
4557 return ret;
4558 #endif /* FEAT_CMDL_COMPL */
4559 }
4560
4561 #if defined(FEAT_CMDL_COMPL) || defined(PROTO)
4562 /*
4563 * Expand a list of names.
4564 *
4565 * Generic function for command line completion. It calls a function to
4566 * obtain strings, one by one. The strings are matched against a regexp
4567 * program. Matching strings are copied into an array, which is returned.
4568 *
4569 * Returns OK when no problems encountered, FAIL for error (out of memory).
4570 */
4571 int
4572 ExpandGeneric(xp, regmatch, num_file, file, func)
4573 expand_T *xp;
4574 regmatch_T *regmatch;
4575 int *num_file;
4576 char_u ***file;
4577 char_u *((*func)__ARGS((expand_T *, int)));
4578 /* returns a string from the list */
4579 {
4580 int i;
4581 int count = 0;
4582 int round;
4583 char_u *str;
4584
4585 /* do this loop twice:
4586 * round == 0: count the number of matching names
4587 * round == 1: copy the matching names into allocated memory
4588 */
4589 for (round = 0; round <= 1; ++round)
4590 {
4591 for (i = 0; ; ++i)
4592 {
4593 str = (*func)(xp, i);
4594 if (str == NULL) /* end of list */
4595 break;
4596 if (*str == NUL) /* skip empty strings */
4597 continue;
4598
4599 if (vim_regexec(regmatch, str, (colnr_T)0))
4600 {
4601 if (round)
4602 {
4603 str = vim_strsave_escaped(str, (char_u *)" \t\\.");
4604 (*file)[count] = str;
4605 #ifdef FEAT_MENU
4606 if (func == get_menu_names && str != NULL)
4607 {
4608 /* test for separator added by get_menu_names() */
4609 str += STRLEN(str) - 1;
4610 if (*str == '\001')
4611 *str = '.';
4612 }
4613 #endif
4614 }
4615 ++count;
4616 }
4617 }
4618 if (round == 0)
4619 {
4620 if (count == 0)
4621 return OK;
4622 *num_file = count;
4623 *file = (char_u **)alloc((unsigned)(count * sizeof(char_u *)));
4624 if (*file == NULL)
4625 {
4626 *file = (char_u **)"";
4627 return FAIL;
4628 }
4629 count = 0;
4630 }
4631 }
4632
4633 /* Sort the results. Keep menu's in the specified order. */
4634 if (xp->xp_context != EXPAND_MENUNAMES && xp->xp_context != EXPAND_MENUS)
4635 sort_strings(*file, *num_file);
4636
4637 #ifdef FEAT_CMDL_COMPL
4638 /* Reset the variables used for special highlight names expansion, so that
4639 * they don't show up when getting normal highlight names by ID. */
4640 reset_expand_highlight();
4641 #endif
4642
4643 return OK;
4644 }
4645
4646 /*
4647 * Complete a shell command.
4648 * Returns FAIL or OK;
4649 */
4650 static int
4651 expand_shellcmd(filepat, num_file, file, flagsarg)
4652 char_u *filepat; /* pattern to match with command names */
4653 int *num_file; /* return: number of matches */
4654 char_u ***file; /* return: array with matches */
4655 int flagsarg; /* EW_ flags */
4656 {
4657 char_u *pat;
4658 int i;
4659 char_u *path;
4660 int mustfree = FALSE;
4661 garray_T ga;
4662 char_u *buf = alloc(MAXPATHL);
4663 size_t l;
4664 char_u *s, *e;
4665 int flags = flagsarg;
4666 int ret;
4667
4668 if (buf == NULL)
4669 return FAIL;
4670
4671 /* for ":set path=" and ":set tags=" halve backslashes for escaped
4672 * space */
4673 pat = vim_strsave(filepat);
4674 for (i = 0; pat[i]; ++i)
4675 if (pat[i] == '\\' && pat[i + 1] == ' ')
4676 STRMOVE(pat + i, pat + i + 1);
4677
4678 flags |= EW_FILE | EW_EXEC;
4679
4680 /* For an absolute name we don't use $PATH. */
4681 if (mch_isFullName(pat))
4682 path = (char_u *)" ";
4683 else if ((pat[0] == '.' && (vim_ispathsep(pat[1])
4684 || (pat[1] == '.' && vim_ispathsep(pat[2])))))
4685 path = (char_u *)".";
4686 else
4687 path = vim_getenv((char_u *)"PATH", &mustfree);
4688
4689 /*
4690 * Go over all directories in $PATH. Expand matches in that directory and
4691 * collect them in "ga".
4692 */
4693 ga_init2(&ga, (int)sizeof(char *), 10);
4694 for (s = path; *s != NUL; s = e)
4695 {
4696 if (*s == ' ')
4697 ++s; /* Skip space used for absolute path name. */
4698
4699 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
4700 e = vim_strchr(s, ';');
4701 #else
4702 e = vim_strchr(s, ':');
4703 #endif
4704 if (e == NULL)
4705 e = s + STRLEN(s);
4706
4707 l = e - s;
4708 if (l > MAXPATHL - 5)
4709 break;
4710 vim_strncpy(buf, s, l);
4711 add_pathsep(buf);
4712 l = STRLEN(buf);
4713 vim_strncpy(buf + l, pat, MAXPATHL - 1 - l);
4714
4715 /* Expand matches in one directory of $PATH. */
4716 ret = expand_wildcards(1, &buf, num_file, file, flags);
4717 if (ret == OK)
4718 {
4719 if (ga_grow(&ga, *num_file) == FAIL)
4720 FreeWild(*num_file, *file);
4721 else
4722 {
4723 for (i = 0; i < *num_file; ++i)
4724 {
4725 s = (*file)[i];
4726 if (STRLEN(s) > l)
4727 {
4728 /* Remove the path again. */
4729 STRMOVE(s, s + l);
4730 ((char_u **)ga.ga_data)[ga.ga_len++] = s;
4731 }
4732 else
4733 vim_free(s);
4734 }
4735 vim_free(*file);
4736 }
4737 }
4738 if (*e != NUL)
4739 ++e;
4740 }
4741 *file = ga.ga_data;
4742 *num_file = ga.ga_len;
4743
4744 vim_free(buf);
4745 vim_free(pat);
4746 if (mustfree)
4747 vim_free(path);
4748 return OK;
4749 }
4750
4751
4752 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4753 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));
4754
4755 /*
4756 * Call "user_expand_func()" to invoke a user defined VimL function and return
4757 * the result (either a string or a List).
4758 */
4759 static void *
4760 call_user_expand_func(user_expand_func, xp, num_file, file)
4761 void *(*user_expand_func) __ARGS((char_u *, int, char_u **, int));
4762 expand_T *xp;
4763 int *num_file;
4764 char_u ***file;
4765 {
4766 char_u keep;
4767 char_u num[50];
4768 char_u *args[3];
4769 int save_current_SID = current_SID;
4770 void *ret;
4771 struct cmdline_info save_ccline;
4772
4773 if (xp->xp_arg == NULL || xp->xp_arg[0] == '\0')
4774 return NULL;
4775 *num_file = 0;
4776 *file = NULL;
4777
4778 if (ccline.cmdbuff == NULL)
4779 {
4780 /* Completion from Insert mode, pass fake arguments. */
4781 keep = 0;
4782 sprintf((char *)num, "%d", (int)STRLEN(xp->xp_pattern));
4783 args[1] = xp->xp_pattern;
4784 }
4785 else
4786 {
4787 /* Completion on the command line, pass real arguments. */
4788 keep = ccline.cmdbuff[ccline.cmdlen];
4789 ccline.cmdbuff[ccline.cmdlen] = 0;
4790 sprintf((char *)num, "%d", ccline.cmdpos);
4791 args[1] = ccline.cmdbuff;
4792 }
4793 args[0] = vim_strnsave(xp->xp_pattern, xp->xp_pattern_len);
4794 args[2] = num;
4795
4796 /* Save the cmdline, we don't know what the function may do. */
4797 save_ccline = ccline;
4798 ccline.cmdbuff = NULL;
4799 ccline.cmdprompt = NULL;
4800 current_SID = xp->xp_scriptID;
4801
4802 ret = user_expand_func(xp->xp_arg, 3, args, FALSE);
4803
4804 ccline = save_ccline;
4805 current_SID = save_current_SID;
4806 if (ccline.cmdbuff != NULL)
4807 ccline.cmdbuff[ccline.cmdlen] = keep;
4808
4809 vim_free(args[0]);
4810 return ret;
4811 }
4812
4813 /*
4814 * Expand names with a function defined by the user.
4815 */
4816 static int
4817 ExpandUserDefined(xp, regmatch, num_file, file)
4818 expand_T *xp;
4819 regmatch_T *regmatch;
4820 int *num_file;
4821 char_u ***file;
4822 {
4823 char_u *retstr;
4824 char_u *s;
4825 char_u *e;
4826 char_u keep;
4827 garray_T ga;
4828
4829 retstr = call_user_expand_func(call_func_retstr, xp, num_file, file);
4830 if (retstr == NULL)
4831 return FAIL;
4832
4833 ga_init2(&ga, (int)sizeof(char *), 3);
4834 for (s = retstr; *s != NUL; s = e)
4835 {
4836 e = vim_strchr(s, '\n');
4837 if (e == NULL)
4838 e = s + STRLEN(s);
4839 keep = *e;
4840 *e = 0;
4841
4842 if (xp->xp_pattern[0] && vim_regexec(regmatch, s, (colnr_T)0) == 0)
4843 {
4844 *e = keep;
4845 if (*e != NUL)
4846 ++e;
4847 continue;
4848 }
4849
4850 if (ga_grow(&ga, 1) == FAIL)
4851 break;
4852
4853 ((char_u **)ga.ga_data)[ga.ga_len] = vim_strnsave(s, (int)(e - s));
4854 ++ga.ga_len;
4855
4856 *e = keep;
4857 if (*e != NUL)
4858 ++e;
4859 }
4860 vim_free(retstr);
4861 *file = ga.ga_data;
4862 *num_file = ga.ga_len;
4863 return OK;
4864 }
4865
4866 /*
4867 * Expand names with a list returned by a function defined by the user.
4868 */
4869 static int
4870 ExpandUserList(xp, num_file, file)
4871 expand_T *xp;
4872 int *num_file;
4873 char_u ***file;
4874 {
4875 list_T *retlist;
4876 listitem_T *li;
4877 garray_T ga;
4878
4879 retlist = call_user_expand_func(call_func_retlist, xp, num_file, file);
4880 if (retlist == NULL)
4881 return FAIL;
4882
4883 ga_init2(&ga, (int)sizeof(char *), 3);
4884 /* Loop over the items in the list. */
4885 for (li = retlist->lv_first; li != NULL; li = li->li_next)
4886 {
4887 if (li->li_tv.v_type != VAR_STRING || li->li_tv.vval.v_string == NULL)
4888 continue; /* Skip non-string items and empty strings */
4889
4890 if (ga_grow(&ga, 1) == FAIL)
4891 break;
4892
4893 ((char_u **)ga.ga_data)[ga.ga_len] =
4894 vim_strsave(li->li_tv.vval.v_string);
4895 ++ga.ga_len;
4896 }
4897 list_unref(retlist);
4898
4899 *file = ga.ga_data;
4900 *num_file = ga.ga_len;
4901 return OK;
4902 }
4903 #endif
4904
4905 /*
4906 * Expand color scheme names: 'runtimepath'/colors/{pat}.vim
4907 * or compiler names.
4908 */
4909 static int
4910 ExpandRTDir(pat, num_file, file, dirname)
4911 char_u *pat;
4912 int *num_file;
4913 char_u ***file;
4914 char *dirname; /* "colors" or "compiler" */
4915 {
4916 char_u *all;
4917 char_u *s;
4918 char_u *e;
4919 garray_T ga;
4920
4921 *num_file = 0;
4922 *file = NULL;
4923 s = alloc((unsigned)(STRLEN(pat) + STRLEN(dirname) + 7));
4924 if (s == NULL)
4925 return FAIL;
4926 sprintf((char *)s, "%s/%s*.vim", dirname, pat);
4927 all = globpath(p_rtp, s, 0);
4928 vim_free(s);
4929 if (all == NULL)
4930 return FAIL;
4931
4932 ga_init2(&ga, (int)sizeof(char *), 3);
4933 for (s = all; *s != NUL; s = e)
4934 {
4935 e = vim_strchr(s, '\n');
4936 if (e == NULL)
4937 e = s + STRLEN(s);
4938 if (ga_grow(&ga, 1) == FAIL)
4939 break;
4940 if (e - 4 > s && STRNICMP(e - 4, ".vim", 4) == 0)
4941 {
4942 for (s = e - 4; s > all; mb_ptr_back(all, s))
4943 if (*s == '\n' || vim_ispathsep(*s))
4944 break;
4945 ++s;
4946 ((char_u **)ga.ga_data)[ga.ga_len] =
4947 vim_strnsave(s, (int)(e - s - 4));
4948 ++ga.ga_len;
4949 }
4950 if (*e != NUL)
4951 ++e;
4952 }
4953 vim_free(all);
4954 *file = ga.ga_data;
4955 *num_file = ga.ga_len;
4956 return OK;
4957 }
4958
4959 #endif
4960
4961 #if defined(FEAT_CMDL_COMPL) || defined(FEAT_EVAL) || defined(PROTO)
4962 /*
4963 * Expand "file" for all comma-separated directories in "path".
4964 * Returns an allocated string with all matches concatenated, separated by
4965 * newlines. Returns NULL for an error or no matches.
4966 */
4967 char_u *
4968 globpath(path, file, expand_options)
4969 char_u *path;
4970 char_u *file;
4971 int expand_options;
4972 {
4973 expand_T xpc;
4974 char_u *buf;
4975 garray_T ga;
4976 int i;
4977 int len;
4978 int num_p;
4979 char_u **p;
4980 char_u *cur = NULL;
4981
4982 buf = alloc(MAXPATHL);
4983 if (buf == NULL)
4984 return NULL;
4985
4986 ExpandInit(&xpc);
4987 xpc.xp_context = EXPAND_FILES;
4988
4989 ga_init2(&ga, 1, 100);
4990
4991 /* Loop over all entries in {path}. */
4992 while (*path != NUL)
4993 {
4994 /* Copy one item of the path to buf[] and concatenate the file name. */
4995 copy_option_part(&path, buf, MAXPATHL, ",");
4996 if (STRLEN(buf) + STRLEN(file) + 2 < MAXPATHL)
4997 {
4998 add_pathsep(buf);
4999 STRCAT(buf, file);
5000 if (ExpandFromContext(&xpc, buf, &num_p, &p,
5001 WILD_SILENT|expand_options) != FAIL && num_p > 0)
5002 {
5003 ExpandEscape(&xpc, buf, num_p, p, WILD_SILENT|expand_options);
5004 for (len = 0, i = 0; i < num_p; ++i)
5005 len += (int)STRLEN(p[i]) + 1;
5006
5007 /* Concatenate new results to previous ones. */
5008 if (ga_grow(&ga, len) == OK)
5009 {
5010 cur = (char_u *)ga.ga_data + ga.ga_len;
5011 for (i = 0; i < num_p; ++i)
5012 {
5013 STRCPY(cur, p[i]);
5014 cur += STRLEN(p[i]);
5015 *cur++ = '\n';
5016 }
5017 ga.ga_len += len;
5018 }
5019 FreeWild(num_p, p);
5020 }
5021 }
5022 }
5023 if (cur != NULL)
5024 *--cur = 0; /* Replace trailing newline with NUL */
5025
5026 vim_free(buf);
5027 return (char_u *)ga.ga_data;
5028 }
5029
5030 #endif
5031
5032 #if defined(FEAT_CMDHIST) || defined(PROTO)
5033
5034 /*********************************
5035 * Command line history stuff *
5036 *********************************/
5037
5038 /*
5039 * Translate a history character to the associated type number.
5040 */
5041 static int
5042 hist_char2type(c)
5043 int c;
5044 {
5045 if (c == ':')
5046 return HIST_CMD;
5047 if (c == '=')
5048 return HIST_EXPR;
5049 if (c == '@')
5050 return HIST_INPUT;
5051 if (c == '>')
5052 return HIST_DEBUG;
5053 return HIST_SEARCH; /* must be '?' or '/' */
5054 }
5055
5056 /*
5057 * Table of history names.
5058 * These names are used in :history and various hist...() functions.
5059 * It is sufficient to give the significant prefix of a history name.
5060 */
5061
5062 static char *(history_names[]) =
5063 {
5064 "cmd",
5065 "search",
5066 "expr",
5067 "input",
5068 "debug",
5069 NULL
5070 };
5071
5072 /*
5073 * init_history() - Initialize the command line history.
5074 * Also used to re-allocate the history when the size changes.
5075 */
5076 void
5077 init_history()
5078 {
5079 int newlen; /* new length of history table */
5080 histentry_T *temp;
5081 int i;
5082 int j;
5083 int type;
5084
5085 /*
5086 * If size of history table changed, reallocate it
5087 */
5088 newlen = (int)p_hi;
5089 if (newlen != hislen) /* history length changed */
5090 {
5091 for (type = 0; type < HIST_COUNT; ++type) /* adjust the tables */
5092 {
5093 if (newlen)
5094 {
5095 temp = (histentry_T *)lalloc(
5096 (long_u)(newlen * sizeof(histentry_T)), TRUE);
5097 if (temp == NULL) /* out of memory! */
5098 {
5099 if (type == 0) /* first one: just keep the old length */
5100 {
5101 newlen = hislen;
5102 break;
5103 }
5104 /* Already changed one table, now we can only have zero
5105 * length for all tables. */
5106 newlen = 0;
5107 type = -1;
5108 continue;
5109 }
5110 }
5111 else
5112 temp = NULL;
5113 if (newlen == 0 || temp != NULL)
5114 {
5115 if (hisidx[type] < 0) /* there are no entries yet */
5116 {
5117 for (i = 0; i < newlen; ++i)
5118 {
5119 temp[i].hisnum = 0;
5120 temp[i].hisstr = NULL;
5121 }
5122 }
5123 else if (newlen > hislen) /* array becomes bigger */
5124 {
5125 for (i = 0; i <= hisidx[type]; ++i)
5126 temp[i] = history[type][i];
5127 j = i;
5128 for ( ; i <= newlen - (hislen - hisidx[type]); ++i)
5129 {
5130 temp[i].hisnum = 0;
5131 temp[i].hisstr = NULL;
5132 }
5133 for ( ; j < hislen; ++i, ++j)
5134 temp[i] = history[type][j];
5135 }
5136 else /* array becomes smaller or 0 */
5137 {
5138 j = hisidx[type];
5139 for (i = newlen - 1; ; --i)
5140 {
5141 if (i >= 0) /* copy newest entries */
5142 temp[i] = history[type][j];
5143 else /* remove older entries */
5144 vim_free(history[type][j].hisstr);
5145 if (--j < 0)
5146 j = hislen - 1;
5147 if (j == hisidx[type])
5148 break;
5149 }
5150 hisidx[type] = newlen - 1;
5151 }
5152 vim_free(history[type]);
5153 history[type] = temp;
5154 }
5155 }
5156 hislen = newlen;
5157 }
5158 }
5159
5160 /*
5161 * Check if command line 'str' is already in history.
5162 * If 'move_to_front' is TRUE, matching entry is moved to end of history.
5163 */
5164 static int
5165 in_history(type, str, move_to_front)
5166 int type;
5167 char_u *str;
5168 int move_to_front; /* Move the entry to the front if it exists */
5169 {
5170 int i;
5171 int last_i = -1;
5172
5173 if (hisidx[type] < 0)
5174 return FALSE;
5175 i = hisidx[type];
5176 do
5177 {
5178 if (history[type][i].hisstr == NULL)
5179 return FALSE;
5180 if (STRCMP(str, history[type][i].hisstr) == 0)
5181 {
5182 if (!move_to_front)
5183 return TRUE;
5184 last_i = i;
5185 break;
5186 }
5187 if (--i < 0)
5188 i = hislen - 1;
5189 } while (i != hisidx[type]);
5190
5191 if (last_i >= 0)
5192 {
5193 str = history[type][i].hisstr;
5194 while (i != hisidx[type])
5195 {
5196 if (++i >= hislen)
5197 i = 0;
5198 history[type][last_i] = history[type][i];
5199 last_i = i;
5200 }
5201 history[type][i].hisstr = str;
5202 history[type][i].hisnum = ++hisnum[type];
5203 return TRUE;
5204 }
5205 return FALSE;
5206 }
5207
5208 /*
5209 * Convert history name (from table above) to its HIST_ equivalent.
5210 * When "name" is empty, return "cmd" history.
5211 * Returns -1 for unknown history name.
5212 */
5213 int
5214 get_histtype(name)
5215 char_u *name;
5216 {
5217 int i;
5218 int len = (int)STRLEN(name);
5219
5220 /* No argument: use current history. */
5221 if (len == 0)
5222 return hist_char2type(ccline.cmdfirstc);
5223
5224 for (i = 0; history_names[i] != NULL; ++i)
5225 if (STRNICMP(name, history_names[i], len) == 0)
5226 return i;
5227
5228 if (vim_strchr((char_u *)":=@>?/", name[0]) != NULL && name[1] == NUL)
5229 return hist_char2type(name[0]);
5230
5231 return -1;
5232 }
5233
5234 static int last_maptick = -1; /* last seen maptick */
5235
5236 /*
5237 * Add the given string to the given history. If the string is already in the
5238 * history then it is moved to the front. "histype" may be one of he HIST_
5239 * values.
5240 */
5241 void
5242 add_to_history(histype, new_entry, in_map, sep)
5243 int histype;
5244 char_u *new_entry;
5245 int in_map; /* consider maptick when inside a mapping */
5246 int sep; /* separator character used (search hist) */
5247 {
5248 histentry_T *hisptr;
5249 int len;
5250
5251 if (hislen == 0) /* no history */
5252 return;
5253
5254 /*
5255 * Searches inside the same mapping overwrite each other, so that only
5256 * the last line is kept. Be careful not to remove a line that was moved
5257 * down, only lines that were added.
5258 */
5259 if (histype == HIST_SEARCH && in_map)
5260 {
5261 if (maptick == last_maptick)
5262 {
5263 /* Current line is from the same mapping, remove it */
5264 hisptr = &history[HIST_SEARCH][hisidx[HIST_SEARCH]];
5265 vim_free(hisptr->hisstr);
5266 hisptr->hisstr = NULL;
5267 hisptr->hisnum = 0;
5268 --hisnum[histype];
5269 if (--hisidx[HIST_SEARCH] < 0)
5270 hisidx[HIST_SEARCH] = hislen - 1;
5271 }
5272 last_maptick = -1;
5273 }
5274 if (!in_history(histype, new_entry, TRUE))
5275 {
5276 if (++hisidx[histype] == hislen)
5277 hisidx[histype] = 0;
5278 hisptr = &history[histype][hisidx[histype]];
5279 vim_free(hisptr->hisstr);
5280
5281 /* Store the separator after the NUL of the string. */
5282 len = (int)STRLEN(new_entry);
5283 hisptr->hisstr = vim_strnsave(new_entry, len + 2);
5284 if (hisptr->hisstr != NULL)
5285 hisptr->hisstr[len + 1] = sep;
5286
5287 hisptr->hisnum = ++hisnum[histype];
5288 if (histype == HIST_SEARCH && in_map)
5289 last_maptick = maptick;
5290 }
5291 }
5292
5293 #if defined(FEAT_EVAL) || defined(PROTO)
5294
5295 /*
5296 * Get identifier of newest history entry.
5297 * "histype" may be one of the HIST_ values.
5298 */
5299 int
5300 get_history_idx(histype)
5301 int histype;
5302 {
5303 if (hislen == 0 || histype < 0 || histype >= HIST_COUNT
5304 || hisidx[histype] < 0)
5305 return -1;
5306
5307 return history[histype][hisidx[histype]].hisnum;
5308 }
5309
5310 static struct cmdline_info *get_ccline_ptr __ARGS((void));
5311
5312 /*
5313 * Get pointer to the command line info to use. cmdline_paste() may clear
5314 * ccline and put the previous value in prev_ccline.
5315 */
5316 static struct cmdline_info *
5317 get_ccline_ptr()
5318 {
5319 if ((State & CMDLINE) == 0)
5320 return NULL;
5321 if (ccline.cmdbuff != NULL)
5322 return &ccline;
5323 if (prev_ccline_used && prev_ccline.cmdbuff != NULL)
5324 return &prev_ccline;
5325 return NULL;
5326 }
5327
5328 /*
5329 * Get the current command line in allocated memory.
5330 * Only works when the command line is being edited.
5331 * Returns NULL when something is wrong.
5332 */
5333 char_u *
5334 get_cmdline_str()
5335 {
5336 struct cmdline_info *p = get_ccline_ptr();
5337
5338 if (p == NULL)
5339 return NULL;
5340 return vim_strnsave(p->cmdbuff, p->cmdlen);
5341 }
5342
5343 /*
5344 * Get the current command line position, counted in bytes.
5345 * Zero is the first position.
5346 * Only works when the command line is being edited.
5347 * Returns -1 when something is wrong.
5348 */
5349 int
5350 get_cmdline_pos()
5351 {
5352 struct cmdline_info *p = get_ccline_ptr();
5353
5354 if (p == NULL)
5355 return -1;
5356 return p->cmdpos;
5357 }
5358
5359 /*
5360 * Set the command line byte position to "pos". Zero is the first position.
5361 * Only works when the command line is being edited.
5362 * Returns 1 when failed, 0 when OK.
5363 */
5364 int
5365 set_cmdline_pos(pos)
5366 int pos;
5367 {
5368 struct cmdline_info *p = get_ccline_ptr();
5369
5370 if (p == NULL)
5371 return 1;
5372
5373 /* The position is not set directly but after CTRL-\ e or CTRL-R = has
5374 * changed the command line. */
5375 if (pos < 0)
5376 new_cmdpos = 0;
5377 else
5378 new_cmdpos = pos;
5379 return 0;
5380 }
5381
5382 /*
5383 * Get the current command-line type.
5384 * Returns ':' or '/' or '?' or '@' or '>' or '-'
5385 * Only works when the command line is being edited.
5386 * Returns NUL when something is wrong.
5387 */
5388 int
5389 get_cmdline_type()
5390 {
5391 struct cmdline_info *p = get_ccline_ptr();
5392
5393 if (p == NULL)
5394 return NUL;
5395 if (p->cmdfirstc == NUL)
5396 return (p->input_fn) ? '@' : '-';
5397 return p->cmdfirstc;
5398 }
5399
5400 /*
5401 * Calculate history index from a number:
5402 * num > 0: seen as identifying number of a history entry
5403 * num < 0: relative position in history wrt newest entry
5404 * "histype" may be one of the HIST_ values.
5405 */
5406 static int
5407 calc_hist_idx(histype, num)
5408 int histype;
5409 int num;
5410 {
5411 int i;
5412 histentry_T *hist;
5413 int wrapped = FALSE;
5414
5415 if (hislen == 0 || histype < 0 || histype >= HIST_COUNT
5416 || (i = hisidx[histype]) < 0 || num == 0)
5417 return -1;
5418
5419 hist = history[histype];
5420 if (num > 0)
5421 {
5422 while (hist[i].hisnum > num)
5423 if (--i < 0)
5424 {
5425 if (wrapped)
5426 break;
5427 i += hislen;
5428 wrapped = TRUE;
5429 }
5430 if (hist[i].hisnum == num && hist[i].hisstr != NULL)
5431 return i;
5432 }
5433 else if (-num <= hislen)
5434 {
5435 i += num + 1;
5436 if (i < 0)
5437 i += hislen;
5438 if (hist[i].hisstr != NULL)
5439 return i;
5440 }
5441 return -1;
5442 }
5443
5444 /*
5445 * Get a history entry by its index.
5446 * "histype" may be one of the HIST_ values.
5447 */
5448 char_u *
5449 get_history_entry(histype, idx)
5450 int histype;
5451 int idx;
5452 {
5453 idx = calc_hist_idx(histype, idx);
5454 if (idx >= 0)
5455 return history[histype][idx].hisstr;
5456 else
5457 return (char_u *)"";
5458 }
5459
5460 /*
5461 * Clear all entries of a history.
5462 * "histype" may be one of the HIST_ values.
5463 */
5464 int
5465 clr_history(histype)
5466 int histype;
5467 {
5468 int i;
5469 histentry_T *hisptr;
5470
5471 if (hislen != 0 && histype >= 0 && histype < HIST_COUNT)
5472 {
5473 hisptr = history[histype];
5474 for (i = hislen; i--;)
5475 {
5476 vim_free(hisptr->hisstr);
5477 hisptr->hisnum = 0;
5478 hisptr++->hisstr = NULL;
5479 }
5480 hisidx[histype] = -1; /* mark history as cleared */
5481 hisnum[histype] = 0; /* reset identifier counter */
5482 return OK;
5483 }
5484 return FAIL;
5485 }
5486
5487 /*
5488 * Remove all entries matching {str} from a history.
5489 * "histype" may be one of the HIST_ values.
5490 */
5491 int
5492 del_history_entry(histype, str)
5493 int histype;
5494 char_u *str;
5495 {
5496 regmatch_T regmatch;
5497 histentry_T *hisptr;
5498 int idx;
5499 int i;
5500 int last;
5501 int found = FALSE;
5502
5503 regmatch.regprog = NULL;
5504 regmatch.rm_ic = FALSE; /* always match case */
5505 if (hislen != 0
5506 && histype >= 0
5507 && histype < HIST_COUNT
5508 && *str != NUL
5509 && (idx = hisidx[histype]) >= 0
5510 && (regmatch.regprog = vim_regcomp(str, RE_MAGIC + RE_STRING))
5511 != NULL)
5512 {
5513 i = last = idx;
5514 do
5515 {
5516 hisptr = &history[histype][i];
5517 if (hisptr->hisstr == NULL)
5518 break;
5519 if (vim_regexec(&regmatch, hisptr->hisstr, (colnr_T)0))
5520 {
5521 found = TRUE;
5522 vim_free(hisptr->hisstr);
5523 hisptr->hisstr = NULL;
5524 hisptr->hisnum = 0;
5525 }
5526 else
5527 {
5528 if (i != last)
5529 {
5530 history[histype][last] = *hisptr;
5531 hisptr->hisstr = NULL;
5532 hisptr->hisnum = 0;
5533 }
5534 if (--last < 0)
5535 last += hislen;
5536 }
5537 if (--i < 0)
5538 i += hislen;
5539 } while (i != idx);
5540 if (history[histype][idx].hisstr == NULL)
5541 hisidx[histype] = -1;
5542 }
5543 vim_free(regmatch.regprog);
5544 return found;
5545 }
5546
5547 /*
5548 * Remove an indexed entry from a history.
5549 * "histype" may be one of the HIST_ values.
5550 */
5551 int
5552 del_history_idx(histype, idx)
5553 int histype;
5554 int idx;
5555 {
5556 int i, j;
5557
5558 i = calc_hist_idx(histype, idx);
5559 if (i < 0)
5560 return FALSE;
5561 idx = hisidx[histype];
5562 vim_free(history[histype][i].hisstr);
5563
5564 /* When deleting the last added search string in a mapping, reset
5565 * last_maptick, so that the last added search string isn't deleted again.
5566 */
5567 if (histype == HIST_SEARCH && maptick == last_maptick && i == idx)
5568 last_maptick = -1;
5569
5570 while (i != idx)
5571 {
5572 j = (i + 1) % hislen;
5573 history[histype][i] = history[histype][j];
5574 i = j;
5575 }
5576 history[histype][i].hisstr = NULL;
5577 history[histype][i].hisnum = 0;
5578 if (--i < 0)
5579 i += hislen;
5580 hisidx[histype] = i;
5581 return TRUE;
5582 }
5583
5584 #endif /* FEAT_EVAL */
5585
5586 #if defined(FEAT_CRYPT) || defined(PROTO)
5587 /*
5588 * Very specific function to remove the value in ":set key=val" from the
5589 * history.
5590 */
5591 void
5592 remove_key_from_history()
5593 {
5594 char_u *p;
5595 int i;
5596
5597 i = hisidx[HIST_CMD];
5598 if (i < 0)
5599 return;
5600 p = history[HIST_CMD][i].hisstr;
5601 if (p != NULL)
5602 for ( ; *p; ++p)
5603 if (STRNCMP(p, "key", 3) == 0 && !isalpha(p[3]))
5604 {
5605 p = vim_strchr(p + 3, '=');
5606 if (p == NULL)
5607 break;
5608 ++p;
5609 for (i = 0; p[i] && !vim_iswhite(p[i]); ++i)
5610 if (p[i] == '\\' && p[i + 1])
5611 ++i;
5612 STRMOVE(p, p + i);
5613 --p;
5614 }
5615 }
5616 #endif
5617
5618 #endif /* FEAT_CMDHIST */
5619
5620 #if defined(FEAT_QUICKFIX) || defined(FEAT_CMDHIST) || defined(PROTO)
5621 /*
5622 * Get indices "num1,num2" that specify a range within a list (not a range of
5623 * text lines in a buffer!) from a string. Used for ":history" and ":clist".
5624 * Returns OK if parsed successfully, otherwise FAIL.
5625 */
5626 int
5627 get_list_range(str, num1, num2)
5628 char_u **str;
5629 int *num1;
5630 int *num2;
5631 {
5632 int len;
5633 int first = FALSE;
5634 long num;
5635
5636 *str = skipwhite(*str);
5637 if (**str == '-' || vim_isdigit(**str)) /* parse "from" part of range */
5638 {
5639 vim_str2nr(*str, NULL, &len, FALSE, FALSE, &num, NULL);
5640 *str += len;
5641 *num1 = (int)num;
5642 first = TRUE;
5643 }
5644 *str = skipwhite(*str);
5645 if (**str == ',') /* parse "to" part of range */
5646 {
5647 *str = skipwhite(*str + 1);
5648 vim_str2nr(*str, NULL, &len, FALSE, FALSE, &num, NULL);
5649 if (len > 0)
5650 {
5651 *num2 = (int)num;
5652 *str = skipwhite(*str + len);
5653 }
5654 else if (!first) /* no number given at all */
5655 return FAIL;
5656 }
5657 else if (first) /* only one number given */
5658 *num2 = *num1;
5659 return OK;
5660 }
5661 #endif
5662
5663 #if defined(FEAT_CMDHIST) || defined(PROTO)
5664 /*
5665 * :history command - print a history
5666 */
5667 void
5668 ex_history(eap)
5669 exarg_T *eap;
5670 {
5671 histentry_T *hist;
5672 int histype1 = HIST_CMD;
5673 int histype2 = HIST_CMD;
5674 int hisidx1 = 1;
5675 int hisidx2 = -1;
5676 int idx;
5677 int i, j, k;
5678 char_u *end;
5679 char_u *arg = eap->arg;
5680
5681 if (hislen == 0)
5682 {
5683 MSG(_("'history' option is zero"));
5684 return;
5685 }
5686
5687 if (!(VIM_ISDIGIT(*arg) || *arg == '-' || *arg == ','))
5688 {
5689 end = arg;
5690 while (ASCII_ISALPHA(*end)
5691 || vim_strchr((char_u *)":=@>/?", *end) != NULL)
5692 end++;
5693 i = *end;
5694 *end = NUL;
5695 histype1 = get_histtype(arg);
5696 if (histype1 == -1)
5697 {
5698 if (STRNICMP(arg, "all", STRLEN(arg)) == 0)
5699 {
5700 histype1 = 0;
5701 histype2 = HIST_COUNT-1;
5702 }
5703 else
5704 {
5705 *end = i;
5706 EMSG(_(e_trailing));
5707 return;
5708 }
5709 }
5710 else
5711 histype2 = histype1;
5712 *end = i;
5713 }
5714 else
5715 end = arg;
5716 if (!get_list_range(&end, &hisidx1, &hisidx2) || *end != NUL)
5717 {
5718 EMSG(_(e_trailing));
5719 return;
5720 }
5721
5722 for (; !got_int && histype1 <= histype2; ++histype1)
5723 {
5724 STRCPY(IObuff, "\n # ");
5725 STRCAT(STRCAT(IObuff, history_names[histype1]), " history");
5726 MSG_PUTS_TITLE(IObuff);
5727 idx = hisidx[histype1];
5728 hist = history[histype1];
5729 j = hisidx1;
5730 k = hisidx2;
5731 if (j < 0)
5732 j = (-j > hislen) ? 0 : hist[(hislen+j+idx+1) % hislen].hisnum;
5733 if (k < 0)
5734 k = (-k > hislen) ? 0 : hist[(hislen+k+idx+1) % hislen].hisnum;
5735 if (idx >= 0 && j <= k)
5736 for (i = idx + 1; !got_int; ++i)
5737 {
5738 if (i == hislen)
5739 i = 0;
5740 if (hist[i].hisstr != NULL
5741 && hist[i].hisnum >= j && hist[i].hisnum <= k)
5742 {
5743 msg_putchar('\n');
5744 sprintf((char *)IObuff, "%c%6d ", i == idx ? '>' : ' ',
5745 hist[i].hisnum);
5746 if (vim_strsize(hist[i].hisstr) > (int)Columns - 10)
5747 trunc_string(hist[i].hisstr, IObuff + STRLEN(IObuff),
5748 (int)Columns - 10);
5749 else
5750 STRCAT(IObuff, hist[i].hisstr);
5751 msg_outtrans(IObuff);
5752 out_flush();
5753 }
5754 if (i == idx)
5755 break;
5756 }
5757 }
5758 }
5759 #endif
5760
5761 #if (defined(FEAT_VIMINFO) && defined(FEAT_CMDHIST)) || defined(PROTO)
5762 static char_u **viminfo_history[HIST_COUNT] = {NULL, NULL, NULL, NULL};
5763 static int viminfo_hisidx[HIST_COUNT] = {0, 0, 0, 0};
5764 static int viminfo_hislen[HIST_COUNT] = {0, 0, 0, 0};
5765 static int viminfo_add_at_front = FALSE;
5766
5767 static int hist_type2char __ARGS((int type, int use_question));
5768
5769 /*
5770 * Translate a history type number to the associated character.
5771 */
5772 static int
5773 hist_type2char(type, use_question)
5774 int type;
5775 int use_question; /* use '?' instead of '/' */
5776 {
5777 if (type == HIST_CMD)
5778 return ':';
5779 if (type == HIST_SEARCH)
5780 {
5781 if (use_question)
5782 return '?';
5783 else
5784 return '/';
5785 }
5786 if (type == HIST_EXPR)
5787 return '=';
5788 return '@';
5789 }
5790
5791 /*
5792 * Prepare for reading the history from the viminfo file.
5793 * This allocates history arrays to store the read history lines.
5794 */
5795 void
5796 prepare_viminfo_history(asklen)
5797 int asklen;
5798 {
5799 int i;
5800 int num;
5801 int type;
5802 int len;
5803
5804 init_history();
5805 viminfo_add_at_front = (asklen != 0);
5806 if (asklen > hislen)
5807 asklen = hislen;
5808
5809 for (type = 0; type < HIST_COUNT; ++type)
5810 {
5811 /*
5812 * Count the number of empty spaces in the history list. If there are
5813 * more spaces available than we request, then fill them up.
5814 */
5815 for (i = 0, num = 0; i < hislen; i++)
5816 if (history[type][i].hisstr == NULL)
5817 num++;
5818 len = asklen;
5819 if (num > len)
5820 len = num;
5821 if (len <= 0)
5822 viminfo_history[type] = NULL;
5823 else
5824 viminfo_history[type] =
5825 (char_u **)lalloc((long_u)(len * sizeof(char_u *)), FALSE);
5826 if (viminfo_history[type] == NULL)
5827 len = 0;
5828 viminfo_hislen[type] = len;
5829 viminfo_hisidx[type] = 0;
5830 }
5831 }
5832
5833 /*
5834 * Accept a line from the viminfo, store it in the history array when it's
5835 * new.
5836 */
5837 int
5838 read_viminfo_history(virp)
5839 vir_T *virp;
5840 {
5841 int type;
5842 long_u len;
5843 char_u *val;
5844 char_u *p;
5845
5846 type = hist_char2type(virp->vir_line[0]);
5847 if (viminfo_hisidx[type] < viminfo_hislen[type])
5848 {
5849 val = viminfo_readstring(virp, 1, TRUE);
5850 if (val != NULL && *val != NUL)
5851 {
5852 if (!in_history(type, val + (type == HIST_SEARCH),
5853 viminfo_add_at_front))
5854 {
5855 /* Need to re-allocate to append the separator byte. */
5856 len = STRLEN(val);
5857 p = lalloc(len + 2, TRUE);
5858 if (p != NULL)
5859 {
5860 if (type == HIST_SEARCH)
5861 {
5862 /* Search entry: Move the separator from the first
5863 * column to after the NUL. */
5864 mch_memmove(p, val + 1, (size_t)len);
5865 p[len] = (*val == ' ' ? NUL : *val);
5866 }
5867 else
5868 {
5869 /* Not a search entry: No separator in the viminfo
5870 * file, add a NUL separator. */
5871 mch_memmove(p, val, (size_t)len + 1);
5872 p[len + 1] = NUL;
5873 }
5874 viminfo_history[type][viminfo_hisidx[type]++] = p;
5875 }
5876 }
5877 }
5878 vim_free(val);
5879 }
5880 return viminfo_readline(virp);
5881 }
5882
5883 void
5884 finish_viminfo_history()
5885 {
5886 int idx;
5887 int i;
5888 int type;
5889
5890 for (type = 0; type < HIST_COUNT; ++type)
5891 {
5892 if (history[type] == NULL)
5893 return;
5894 idx = hisidx[type] + viminfo_hisidx[type];
5895 if (idx >= hislen)
5896 idx -= hislen;
5897 else if (idx < 0)
5898 idx = hislen - 1;
5899 if (viminfo_add_at_front)
5900 hisidx[type] = idx;
5901 else
5902 {
5903 if (hisidx[type] == -1)
5904 hisidx[type] = hislen - 1;
5905 do
5906 {
5907 if (history[type][idx].hisstr != NULL)
5908 break;
5909 if (++idx == hislen)
5910 idx = 0;
5911 } while (idx != hisidx[type]);
5912 if (idx != hisidx[type] && --idx < 0)
5913 idx = hislen - 1;
5914 }
5915 for (i = 0; i < viminfo_hisidx[type]; i++)
5916 {
5917 vim_free(history[type][idx].hisstr);
5918 history[type][idx].hisstr = viminfo_history[type][i];
5919 if (--idx < 0)
5920 idx = hislen - 1;
5921 }
5922 idx += 1;
5923 idx %= hislen;
5924 for (i = 0; i < viminfo_hisidx[type]; i++)
5925 {
5926 history[type][idx++].hisnum = ++hisnum[type];
5927 idx %= hislen;
5928 }
5929 vim_free(viminfo_history[type]);
5930 viminfo_history[type] = NULL;
5931 }
5932 }
5933
5934 void
5935 write_viminfo_history(fp)
5936 FILE *fp;
5937 {
5938 int i;
5939 int type;
5940 int num_saved;
5941 char_u *p;
5942 int c;
5943
5944 init_history();
5945 if (hislen == 0)
5946 return;
5947 for (type = 0; type < HIST_COUNT; ++type)
5948 {
5949 num_saved = get_viminfo_parameter(hist_type2char(type, FALSE));
5950 if (num_saved == 0)
5951 continue;
5952 if (num_saved < 0) /* Use default */
5953 num_saved = hislen;
5954 fprintf(fp, _("\n# %s History (newest to oldest):\n"),
5955 type == HIST_CMD ? _("Command Line") :
5956 type == HIST_SEARCH ? _("Search String") :
5957 type == HIST_EXPR ? _("Expression") :
5958 _("Input Line"));
5959 if (num_saved > hislen)
5960 num_saved = hislen;
5961 i = hisidx[type];
5962 if (i >= 0)
5963 while (num_saved--)
5964 {
5965 p = history[type][i].hisstr;
5966 if (p != NULL)
5967 {
5968 fputc(hist_type2char(type, TRUE), fp);
5969 /* For the search history: put the separator in the second
5970 * column; use a space if there isn't one. */
5971 if (type == HIST_SEARCH)
5972 {
5973 c = p[STRLEN(p) + 1];
5974 putc(c == NUL ? ' ' : c, fp);
5975 }
5976 viminfo_writestring(fp, p);
5977 }
5978 if (--i < 0)
5979 i = hislen - 1;
5980 }
5981 }
5982 }
5983 #endif /* FEAT_VIMINFO */
5984
5985 #if defined(FEAT_FKMAP) || defined(PROTO)
5986 /*
5987 * Write a character at the current cursor+offset position.
5988 * It is directly written into the command buffer block.
5989 */
5990 void
5991 cmd_pchar(c, offset)
5992 int c, offset;
5993 {
5994 if (ccline.cmdpos + offset >= ccline.cmdlen || ccline.cmdpos + offset < 0)
5995 {
5996 EMSG(_("E198: cmd_pchar beyond the command length"));
5997 return;
5998 }
5999 ccline.cmdbuff[ccline.cmdpos + offset] = (char_u)c;
6000 ccline.cmdbuff[ccline.cmdlen] = NUL;
6001 }
6002
6003 int
6004 cmd_gchar(offset)
6005 int offset;
6006 {
6007 if (ccline.cmdpos + offset >= ccline.cmdlen || ccline.cmdpos + offset < 0)
6008 {
6009 /* EMSG(_("cmd_gchar beyond the command length")); */
6010 return NUL;
6011 }
6012 return (int)ccline.cmdbuff[ccline.cmdpos + offset];
6013 }
6014 #endif
6015
6016 #if defined(FEAT_CMDWIN) || defined(PROTO)
6017 /*
6018 * Open a window on the current command line and history. Allow editing in
6019 * the window. Returns when the window is closed.
6020 * Returns:
6021 * CR if the command is to be executed
6022 * Ctrl_C if it is to be abandoned
6023 * K_IGNORE if editing continues
6024 */
6025 static int
6026 ex_window()
6027 {
6028 struct cmdline_info save_ccline;
6029 buf_T *old_curbuf = curbuf;
6030 win_T *old_curwin = curwin;
6031 buf_T *bp;
6032 win_T *wp;
6033 int i;
6034 linenr_T lnum;
6035 int histtype;
6036 garray_T winsizes;
6037 #ifdef FEAT_AUTOCMD
6038 char_u typestr[2];
6039 #endif
6040 int save_restart_edit = restart_edit;
6041 int save_State = State;
6042 int save_exmode = exmode_active;
6043 #ifdef FEAT_RIGHTLEFT
6044 int save_cmdmsg_rl = cmdmsg_rl;
6045 #endif
6046
6047 /* Can't do this recursively. Can't do it when typing a password. */
6048 if (cmdwin_type != 0
6049 # if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
6050 || cmdline_star > 0
6051 # endif
6052 )
6053 {
6054 beep_flush();
6055 return K_IGNORE;
6056 }
6057
6058 /* Save current window sizes. */
6059 win_size_save(&winsizes);
6060
6061 # ifdef FEAT_AUTOCMD
6062 /* Don't execute autocommands while creating the window. */
6063 block_autocmds();
6064 # endif
6065 /* don't use a new tab page */
6066 cmdmod.tab = 0;
6067
6068 /* Create a window for the command-line buffer. */
6069 if (win_split((int)p_cwh, WSP_BOT) == FAIL)
6070 {
6071 beep_flush();
6072 # ifdef FEAT_AUTOCMD
6073 unblock_autocmds();
6074 # endif
6075 return K_IGNORE;
6076 }
6077 cmdwin_type = get_cmdline_type();
6078
6079 /* Create the command-line buffer empty. */
6080 (void)do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, ECMD_HIDE, NULL);
6081 (void)setfname(curbuf, (char_u *)"[Command Line]", NULL, TRUE);
6082 set_option_value((char_u *)"bt", 0L, (char_u *)"nofile", OPT_LOCAL);
6083 set_option_value((char_u *)"swf", 0L, NULL, OPT_LOCAL);
6084 curbuf->b_p_ma = TRUE;
6085 #ifdef FEAT_FOLDING
6086 curwin->w_p_fen = FALSE;
6087 #endif
6088 # ifdef FEAT_RIGHTLEFT
6089 curwin->w_p_rl = cmdmsg_rl;
6090 cmdmsg_rl = FALSE;
6091 # endif
6092 # ifdef FEAT_SCROLLBIND
6093 curwin->w_p_scb = FALSE;
6094 # endif
6095
6096 # ifdef FEAT_AUTOCMD
6097 /* Do execute autocommands for setting the filetype (load syntax). */
6098 unblock_autocmds();
6099 # endif
6100
6101 /* Showing the prompt may have set need_wait_return, reset it. */
6102 need_wait_return = FALSE;
6103
6104 histtype = hist_char2type(cmdwin_type);
6105 if (histtype == HIST_CMD || histtype == HIST_DEBUG)
6106 {
6107 if (p_wc == TAB)
6108 {
6109 add_map((char_u *)"<buffer> <Tab> <C-X><C-V>", INSERT);
6110 add_map((char_u *)"<buffer> <Tab> a<C-X><C-V>", NORMAL);
6111 }
6112 set_option_value((char_u *)"ft", 0L, (char_u *)"vim", OPT_LOCAL);
6113 }
6114
6115 /* Reset 'textwidth' after setting 'filetype' (the Vim filetype plugin
6116 * sets 'textwidth' to 78). */
6117 curbuf->b_p_tw = 0;
6118
6119 /* Fill the buffer with the history. */
6120 init_history();
6121 if (hislen > 0)
6122 {
6123 i = hisidx[histtype];
6124 if (i >= 0)
6125 {
6126 lnum = 0;
6127 do
6128 {
6129 if (++i == hislen)
6130 i = 0;
6131 if (history[histtype][i].hisstr != NULL)
6132 ml_append(lnum++, history[histtype][i].hisstr,
6133 (colnr_T)0, FALSE);
6134 }
6135 while (i != hisidx[histtype]);
6136 }
6137 }
6138
6139 /* Replace the empty last line with the current command-line and put the
6140 * cursor there. */
6141 ml_replace(curbuf->b_ml.ml_line_count, ccline.cmdbuff, TRUE);
6142 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6143 curwin->w_cursor.col = ccline.cmdpos;
6144 changed_line_abv_curs();
6145 invalidate_botline();
6146 redraw_later(SOME_VALID);
6147
6148 /* Save the command line info, can be used recursively. */
6149 save_ccline = ccline;
6150 ccline.cmdbuff = NULL;
6151 ccline.cmdprompt = NULL;
6152
6153 /* No Ex mode here! */
6154 exmode_active = 0;
6155
6156 State = NORMAL;
6157 # ifdef FEAT_MOUSE
6158 setmouse();
6159 # endif
6160
6161 # ifdef FEAT_AUTOCMD
6162 /* Trigger CmdwinEnter autocommands. */
6163 typestr[0] = cmdwin_type;
6164 typestr[1] = NUL;
6165 apply_autocmds(EVENT_CMDWINENTER, typestr, typestr, FALSE, curbuf);
6166 if (restart_edit != 0) /* autocmd with ":startinsert" */
6167 stuffcharReadbuff(K_NOP);
6168 # endif
6169
6170 i = RedrawingDisabled;
6171 RedrawingDisabled = 0;
6172
6173 /*
6174 * Call the main loop until <CR> or CTRL-C is typed.
6175 */
6176 cmdwin_result = 0;
6177 main_loop(TRUE, FALSE);
6178
6179 RedrawingDisabled = i;
6180
6181 # ifdef FEAT_AUTOCMD
6182 /* Trigger CmdwinLeave autocommands. */
6183 apply_autocmds(EVENT_CMDWINLEAVE, typestr, typestr, FALSE, curbuf);
6184 # endif
6185
6186 /* Restore the command line info. */
6187 ccline = save_ccline;
6188 cmdwin_type = 0;
6189
6190 exmode_active = save_exmode;
6191
6192 /* Safety check: The old window or buffer was deleted: It's a bug when
6193 * this happens! */
6194 if (!win_valid(old_curwin) || !buf_valid(old_curbuf))
6195 {
6196 cmdwin_result = Ctrl_C;
6197 EMSG(_("E199: Active window or buffer deleted"));
6198 }
6199 else
6200 {
6201 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
6202 /* autocmds may abort script processing */
6203 if (aborting() && cmdwin_result != K_IGNORE)
6204 cmdwin_result = Ctrl_C;
6205 # endif
6206 /* Set the new command line from the cmdline buffer. */
6207 vim_free(ccline.cmdbuff);
6208 if (cmdwin_result == K_XF1 || cmdwin_result == K_XF2) /* :qa[!] typed */
6209 {
6210 char *p = (cmdwin_result == K_XF2) ? "qa" : "qa!";
6211
6212 if (histtype == HIST_CMD)
6213 {
6214 /* Execute the command directly. */
6215 ccline.cmdbuff = vim_strsave((char_u *)p);
6216 cmdwin_result = CAR;
6217 }
6218 else
6219 {
6220 /* First need to cancel what we were doing. */
6221 ccline.cmdbuff = NULL;
6222 stuffcharReadbuff(':');
6223 stuffReadbuff((char_u *)p);
6224 stuffcharReadbuff(CAR);
6225 }
6226 }
6227 else if (cmdwin_result == K_XF2) /* :qa typed */
6228 {
6229 ccline.cmdbuff = vim_strsave((char_u *)"qa");
6230 cmdwin_result = CAR;
6231 }
6232 else
6233 ccline.cmdbuff = vim_strsave(ml_get_curline());
6234 if (ccline.cmdbuff == NULL)
6235 cmdwin_result = Ctrl_C;
6236 else
6237 {
6238 ccline.cmdlen = (int)STRLEN(ccline.cmdbuff);
6239 ccline.cmdbufflen = ccline.cmdlen + 1;
6240 ccline.cmdpos = curwin->w_cursor.col;
6241 if (ccline.cmdpos > ccline.cmdlen)
6242 ccline.cmdpos = ccline.cmdlen;
6243 if (cmdwin_result == K_IGNORE)
6244 {
6245 set_cmdspos_cursor();
6246 redrawcmd();
6247 }
6248 }
6249
6250 # ifdef FEAT_AUTOCMD
6251 /* Don't execute autocommands while deleting the window. */
6252 block_autocmds();
6253 # endif
6254 wp = curwin;
6255 bp = curbuf;
6256 win_goto(old_curwin);
6257 win_close(wp, TRUE);
6258 close_buffer(NULL, bp, DOBUF_WIPE);
6259
6260 /* Restore window sizes. */
6261 win_size_restore(&winsizes);
6262
6263 # ifdef FEAT_AUTOCMD
6264 unblock_autocmds();
6265 # endif
6266 }
6267
6268 ga_clear(&winsizes);
6269 restart_edit = save_restart_edit;
6270 # ifdef FEAT_RIGHTLEFT
6271 cmdmsg_rl = save_cmdmsg_rl;
6272 # endif
6273
6274 State = save_State;
6275 # ifdef FEAT_MOUSE
6276 setmouse();
6277 # endif
6278
6279 return cmdwin_result;
6280 }
6281 #endif /* FEAT_CMDWIN */
6282
6283 /*
6284 * Used for commands that either take a simple command string argument, or:
6285 * cmd << endmarker
6286 * {script}
6287 * endmarker
6288 * Returns a pointer to allocated memory with {script} or NULL.
6289 */
6290 char_u *
6291 script_get(eap, cmd)
6292 exarg_T *eap;
6293 char_u *cmd;
6294 {
6295 char_u *theline;
6296 char *end_pattern = NULL;
6297 char dot[] = ".";
6298 garray_T ga;
6299
6300 if (cmd[0] != '<' || cmd[1] != '<' || eap->getline == NULL)
6301 return NULL;
6302
6303 ga_init2(&ga, 1, 0x400);
6304
6305 if (cmd[2] != NUL)
6306 end_pattern = (char *)skipwhite(cmd + 2);
6307 else
6308 end_pattern = dot;
6309
6310 for (;;)
6311 {
6312 theline = eap->getline(
6313 #ifdef FEAT_EVAL
6314 eap->cstack->cs_looplevel > 0 ? -1 :
6315 #endif
6316 NUL, eap->cookie, 0);
6317
6318 if (theline == NULL || STRCMP(end_pattern, theline) == 0)
6319 {
6320 vim_free(theline);
6321 break;
6322 }
6323
6324 ga_concat(&ga, theline);
6325 ga_append(&ga, '\n');
6326 vim_free(theline);
6327 }
6328 ga_append(&ga, NUL);
6329
6330 return (char_u *)ga.ga_data;
6331 }
Vim for the Mac