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Merged from the latest developing branch.
[MacVim.git] / src / ex_getln.c
blob0f0f17075d1921c36777daaa6941a2e6598bc068
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)
97 static void redrawcmd_preedit __ARGS((void));
98 #endif
99 #ifdef FEAT_WILDMENU
100 static void cmdline_del __ARGS((int from));
101 #endif
102 static void redrawcmdprompt __ARGS((void));
103 static void cursorcmd __ARGS((void));
104 static int ccheck_abbr __ARGS((int));
105 static int nextwild __ARGS((expand_T *xp, int type, int options));
106 static void escape_fname __ARGS((char_u **pp));
107 static int showmatches __ARGS((expand_T *xp, int wildmenu));
108 static void set_expand_context __ARGS((expand_T *xp));
109 static int ExpandFromContext __ARGS((expand_T *xp, char_u *, int *, char_u ***, int));
110 static int expand_showtail __ARGS((expand_T *xp));
111 #ifdef FEAT_CMDL_COMPL
112 static int expand_shellcmd __ARGS((char_u *filepat, int *num_file, char_u ***file, int flagsarg));
113 static int ExpandRTDir __ARGS((char_u *pat, int *num_file, char_u ***file, char *dirname));
114 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
115 static int ExpandUserDefined __ARGS((expand_T *xp, regmatch_T *regmatch, int *num_file, char_u ***file));
116 static int ExpandUserList __ARGS((expand_T *xp, int *num_file, char_u ***file));
117 # endif
118 #endif
119
120 #ifdef FEAT_CMDWIN
121 static int ex_window __ARGS((void));
122 #endif
123
124 /*
125 * getcmdline() - accept a command line starting with firstc.
126 *
127 * firstc == ':' get ":" command line.
128 * firstc == '/' or '?' get search pattern
129 * firstc == '=' get expression
130 * firstc == '@' get text for input() function
131 * firstc == '>' get text for debug mode
132 * firstc == NUL get text for :insert command
133 * firstc == -1 like NUL, and break on CTRL-C
134 *
135 * The line is collected in ccline.cmdbuff, which is reallocated to fit the
136 * command line.
137 *
138 * Careful: getcmdline() can be called recursively!
139 *
140 * Return pointer to allocated string if there is a commandline, NULL
141 * otherwise.
142 */
143 char_u *
144 getcmdline(firstc, count, indent)
145 int firstc;
146 long count UNUSED; /* only used for incremental search */
147 int indent; /* indent for inside conditionals */
148 {
149 int c;
150 int i;
151 int j;
152 int gotesc = FALSE; /* TRUE when <ESC> just typed */
153 int do_abbr; /* when TRUE check for abbr. */
154 #ifdef FEAT_CMDHIST
155 char_u *lookfor = NULL; /* string to match */
156 int hiscnt; /* current history line in use */
157 int histype; /* history type to be used */
158 #endif
159 #ifdef FEAT_SEARCH_EXTRA
160 pos_T old_cursor;
161 colnr_T old_curswant;
162 colnr_T old_leftcol;
163 linenr_T old_topline;
164 # ifdef FEAT_DIFF
165 int old_topfill;
166 # endif
167 linenr_T old_botline;
168 int did_incsearch = FALSE;
169 int incsearch_postponed = FALSE;
170 #endif
171 int did_wild_list = FALSE; /* did wild_list() recently */
172 int wim_index = 0; /* index in wim_flags[] */
173 int res;
174 int save_msg_scroll = msg_scroll;
175 int save_State = State; /* remember State when called */
176 int some_key_typed = FALSE; /* one of the keys was typed */
177 #ifdef FEAT_MOUSE
178 /* mouse drag and release events are ignored, unless they are
179 * preceded with a mouse down event */
180 int ignore_drag_release = TRUE;
181 #endif
182 #ifdef FEAT_EVAL
183 int break_ctrl_c = FALSE;
184 #endif
185 expand_T xpc;
186 long *b_im_ptr = NULL;
187 #if defined(FEAT_WILDMENU) || defined(FEAT_EVAL) || defined(FEAT_SEARCH_EXTRA)
188 /* Everything that may work recursively should save and restore the
189 * current command line in save_ccline. That includes update_screen(), a
190 * custom status line may invoke ":normal". */
191 struct cmdline_info save_ccline;
192 #endif
193
194 #ifdef FEAT_SNIFF
195 want_sniff_request = 0;
196 #endif
197 #ifdef FEAT_EVAL
198 if (firstc == -1)
199 {
200 firstc = NUL;
201 break_ctrl_c = TRUE;
202 }
203 #endif
204 #ifdef FEAT_RIGHTLEFT
205 /* start without Hebrew mapping for a command line */
206 if (firstc == ':' || firstc == '=' || firstc == '>')
207 cmd_hkmap = 0;
208 #endif
209
210 ccline.overstrike = FALSE; /* always start in insert mode */
211 #ifdef FEAT_SEARCH_EXTRA
212 old_cursor = curwin->w_cursor; /* needs to be restored later */
213 old_curswant = curwin->w_curswant;
214 old_leftcol = curwin->w_leftcol;
215 old_topline = curwin->w_topline;
216 # ifdef FEAT_DIFF
217 old_topfill = curwin->w_topfill;
218 # endif
219 old_botline = curwin->w_botline;
220 #endif
221
222 /*
223 * set some variables for redrawcmd()
224 */
225 ccline.cmdfirstc = (firstc == '@' ? 0 : firstc);
226 ccline.cmdindent = (firstc > 0 ? indent : 0);
227
228 /* alloc initial ccline.cmdbuff */
229 alloc_cmdbuff(exmode_active ? 250 : indent + 1);
230 if (ccline.cmdbuff == NULL)
231 return NULL; /* out of memory */
232 ccline.cmdlen = ccline.cmdpos = 0;
233 ccline.cmdbuff[0] = NUL;
234
235 /* autoindent for :insert and :append */
236 if (firstc <= 0)
237 {
238 copy_spaces(ccline.cmdbuff, indent);
239 ccline.cmdbuff[indent] = NUL;
240 ccline.cmdpos = indent;
241 ccline.cmdspos = indent;
242 ccline.cmdlen = indent;
243 }
244
245 ExpandInit(&xpc);
246 ccline.xpc = &xpc;
247
248 #ifdef FEAT_RIGHTLEFT
249 if (curwin->w_p_rl && *curwin->w_p_rlc == 's'
250 && (firstc == '/' || firstc == '?'))
251 cmdmsg_rl = TRUE;
252 else
253 cmdmsg_rl = FALSE;
254 #endif
255
256 redir_off = TRUE; /* don't redirect the typed command */
257 if (!cmd_silent)
258 {
259 i = msg_scrolled;
260 msg_scrolled = 0; /* avoid wait_return message */
261 gotocmdline(TRUE);
262 msg_scrolled += i;
263 redrawcmdprompt(); /* draw prompt or indent */
264 set_cmdspos();
265 }
266 xpc.xp_context = EXPAND_NOTHING;
267 xpc.xp_backslash = XP_BS_NONE;
268 #ifndef BACKSLASH_IN_FILENAME
269 xpc.xp_shell = FALSE;
270 #endif
271
272 #if defined(FEAT_EVAL)
273 if (ccline.input_fn)
274 {
275 xpc.xp_context = ccline.xp_context;
276 xpc.xp_pattern = ccline.cmdbuff;
277 # if defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)
278 xpc.xp_arg = ccline.xp_arg;
279 # endif
280 }
281 #endif
282
283 /*
284 * Avoid scrolling when called by a recursive do_cmdline(), e.g. when
285 * doing ":@0" when register 0 doesn't contain a CR.
286 */
287 msg_scroll = FALSE;
288
289 State = CMDLINE;
290
291 if (firstc == '/' || firstc == '?' || firstc == '@')
292 {
293 /* Use ":lmap" mappings for search pattern and input(). */
294 if (curbuf->b_p_imsearch == B_IMODE_USE_INSERT)
295 b_im_ptr = &curbuf->b_p_iminsert;
296 else
297 b_im_ptr = &curbuf->b_p_imsearch;
298 if (*b_im_ptr == B_IMODE_LMAP)
299 State |= LANGMAP;
300 #ifdef USE_IM_CONTROL
301 im_set_active(*b_im_ptr == B_IMODE_IM);
302 #endif
303 }
304 #ifdef USE_IM_CONTROL
305 else if (p_imcmdline)
306 im_set_active(TRUE);
307 #endif
308
309 #ifdef FEAT_MOUSE
310 setmouse();
311 #endif
312 #ifdef CURSOR_SHAPE
313 ui_cursor_shape(); /* may show different cursor shape */
314 #endif
315
316 /* When inside an autocommand for writing "exiting" may be set and
317 * terminal mode set to cooked. Need to set raw mode here then. */
318 settmode(TMODE_RAW);
319
320 #ifdef FEAT_CMDHIST
321 init_history();
322 hiscnt = hislen; /* set hiscnt to impossible history value */
323 histype = hist_char2type(firstc);
324 #endif
325
326 #ifdef FEAT_DIGRAPHS
327 do_digraph(-1); /* init digraph typeahead */
328 #endif
329
330 /*
331 * Collect the command string, handling editing keys.
332 */
333 for (;;)
334 {
335 redir_off = TRUE; /* Don't redirect the typed command.
336 Repeated, because a ":redir" inside
337 completion may switch it on. */
338 #ifdef USE_ON_FLY_SCROLL
339 dont_scroll = FALSE; /* allow scrolling here */
340 #endif
341 quit_more = FALSE; /* reset after CTRL-D which had a more-prompt */
342
343 cursorcmd(); /* set the cursor on the right spot */
344
345 /* Get a character. Ignore K_IGNORE, it should not do anything, such
346 * as stop completion. */
347 do
348 {
349 c = safe_vgetc();
350 } while (c == K_IGNORE);
351
352 if (KeyTyped)
353 {
354 some_key_typed = TRUE;
355 #ifdef FEAT_RIGHTLEFT
356 if (cmd_hkmap)
357 c = hkmap(c);
358 # ifdef FEAT_FKMAP
359 if (cmd_fkmap)
360 c = cmdl_fkmap(c);
361 # endif
362 if (cmdmsg_rl && !KeyStuffed)
363 {
364 /* Invert horizontal movements and operations. Only when
365 * typed by the user directly, not when the result of a
366 * mapping. */
367 switch (c)
368 {
369 case K_RIGHT: c = K_LEFT; break;
370 case K_S_RIGHT: c = K_S_LEFT; break;
371 case K_C_RIGHT: c = K_C_LEFT; break;
372 case K_LEFT: c = K_RIGHT; break;
373 case K_S_LEFT: c = K_S_RIGHT; break;
374 case K_C_LEFT: c = K_C_RIGHT; break;
375 }
376 }
377 #endif
378 }
379
380 /*
381 * Ignore got_int when CTRL-C was typed here.
382 * Don't ignore it in :global, we really need to break then, e.g., for
383 * ":g/pat/normal /pat" (without the <CR>).
384 * Don't ignore it for the input() function.
385 */
386 if ((c == Ctrl_C
387 #ifdef UNIX
388 || c == intr_char
389 #endif
390 )
391 #if defined(FEAT_EVAL) || defined(FEAT_CRYPT)
392 && firstc != '@'
393 #endif
394 #ifdef FEAT_EVAL
395 && !break_ctrl_c
396 #endif
397 && !global_busy)
398 got_int = FALSE;
399
400 #ifdef FEAT_CMDHIST
401 /* free old command line when finished moving around in the history
402 * list */
403 if (lookfor != NULL
404 && c != K_S_DOWN && c != K_S_UP
405 && c != K_DOWN && c != K_UP
406 && c != K_PAGEDOWN && c != K_PAGEUP
407 && c != K_KPAGEDOWN && c != K_KPAGEUP
408 && c != K_LEFT && c != K_RIGHT
409 && (xpc.xp_numfiles > 0 || (c != Ctrl_P && c != Ctrl_N)))
410 {
411 vim_free(lookfor);
412 lookfor = NULL;
413 }
414 #endif
415
416 /*
417 * When there are matching completions to select <S-Tab> works like
418 * CTRL-P (unless 'wc' is <S-Tab>).
419 */
420 if (c != p_wc && c == K_S_TAB && xpc.xp_numfiles > 0)
421 c = Ctrl_P;
422
423 #ifdef FEAT_WILDMENU
424 /* Special translations for 'wildmenu' */
425 if (did_wild_list && p_wmnu)
426 {
427 if (c == K_LEFT)
428 c = Ctrl_P;
429 else if (c == K_RIGHT)
430 c = Ctrl_N;
431 }
432 /* Hitting CR after "emenu Name.": complete submenu */
433 if (xpc.xp_context == EXPAND_MENUNAMES && p_wmnu
434 && ccline.cmdpos > 1
435 && ccline.cmdbuff[ccline.cmdpos - 1] == '.'
436 && ccline.cmdbuff[ccline.cmdpos - 2] != '\\'
437 && (c == '\n' || c == '\r' || c == K_KENTER))
438 c = K_DOWN;
439 #endif
440
441 /* free expanded names when finished walking through matches */
442 if (xpc.xp_numfiles != -1
443 && !(c == p_wc && KeyTyped) && c != p_wcm
444 && c != Ctrl_N && c != Ctrl_P && c != Ctrl_A
445 && c != Ctrl_L)
446 {
447 (void)ExpandOne(&xpc, NULL, NULL, 0, WILD_FREE);
448 did_wild_list = FALSE;
449 #ifdef FEAT_WILDMENU
450 if (!p_wmnu || (c != K_UP && c != K_DOWN))
451 #endif
452 xpc.xp_context = EXPAND_NOTHING;
453 wim_index = 0;
454 #ifdef FEAT_WILDMENU
455 if (p_wmnu && wild_menu_showing != 0)
456 {
457 int skt = KeyTyped;
458 int old_RedrawingDisabled = RedrawingDisabled;
459
460 if (ccline.input_fn)
461 RedrawingDisabled = 0;
462
463 if (wild_menu_showing == WM_SCROLLED)
464 {
465 /* Entered command line, move it up */
466 cmdline_row--;
467 redrawcmd();
468 }
469 else if (save_p_ls != -1)
470 {
471 /* restore 'laststatus' and 'winminheight' */
472 p_ls = save_p_ls;
473 p_wmh = save_p_wmh;
474 last_status(FALSE);
475 save_cmdline(&save_ccline);
476 update_screen(VALID); /* redraw the screen NOW */
477 restore_cmdline(&save_ccline);
478 redrawcmd();
479 save_p_ls = -1;
480 }
481 else
482 {
483 # ifdef FEAT_VERTSPLIT
484 win_redraw_last_status(topframe);
485 # else
486 lastwin->w_redr_status = TRUE;
487 # endif
488 redraw_statuslines();
489 }
490 KeyTyped = skt;
491 wild_menu_showing = 0;
492 if (ccline.input_fn)
493 RedrawingDisabled = old_RedrawingDisabled;
494 }
495 #endif
496 }
497
498 #ifdef FEAT_WILDMENU
499 /* Special translations for 'wildmenu' */
500 if (xpc.xp_context == EXPAND_MENUNAMES && p_wmnu)
501 {
502 /* Hitting <Down> after "emenu Name.": complete submenu */
503 if (c == K_DOWN && ccline.cmdpos > 0
504 && ccline.cmdbuff[ccline.cmdpos - 1] == '.')
505 c = p_wc;
506 else if (c == K_UP)
507 {
508 /* Hitting <Up>: Remove one submenu name in front of the
509 * cursor */
510 int found = FALSE;
511
512 j = (int)(xpc.xp_pattern - ccline.cmdbuff);
513 i = 0;
514 while (--j > 0)
515 {
516 /* check for start of menu name */
517 if (ccline.cmdbuff[j] == ' '
518 && ccline.cmdbuff[j - 1] != '\\')
519 {
520 i = j + 1;
521 break;
522 }
523 /* check for start of submenu name */
524 if (ccline.cmdbuff[j] == '.'
525 && ccline.cmdbuff[j - 1] != '\\')
526 {
527 if (found)
528 {
529 i = j + 1;
530 break;
531 }
532 else
533 found = TRUE;
534 }
535 }
536 if (i > 0)
537 cmdline_del(i);
538 c = p_wc;
539 xpc.xp_context = EXPAND_NOTHING;
540 }
541 }
542 if ((xpc.xp_context == EXPAND_FILES
543 || xpc.xp_context == EXPAND_DIRECTORIES
544 || xpc.xp_context == EXPAND_SHELLCMD) && p_wmnu)
545 {
546 char_u upseg[5];
547
548 upseg[0] = PATHSEP;
549 upseg[1] = '.';
550 upseg[2] = '.';
551 upseg[3] = PATHSEP;
552 upseg[4] = NUL;
553
554 if (c == K_DOWN
555 && ccline.cmdpos > 0
556 && ccline.cmdbuff[ccline.cmdpos - 1] == PATHSEP
557 && (ccline.cmdpos < 3
558 || ccline.cmdbuff[ccline.cmdpos - 2] != '.'
559 || ccline.cmdbuff[ccline.cmdpos - 3] != '.'))
560 {
561 /* go down a directory */
562 c = p_wc;
563 }
564 else if (STRNCMP(xpc.xp_pattern, upseg + 1, 3) == 0 && c == K_DOWN)
565 {
566 /* If in a direct ancestor, strip off one ../ to go down */
567 int found = FALSE;
568
569 j = ccline.cmdpos;
570 i = (int)(xpc.xp_pattern - ccline.cmdbuff);
571 while (--j > i)
572 {
573 #ifdef FEAT_MBYTE
574 if (has_mbyte)
575 j -= (*mb_head_off)(ccline.cmdbuff, ccline.cmdbuff + j);
576 #endif
577 if (vim_ispathsep(ccline.cmdbuff[j]))
578 {
579 found = TRUE;
580 break;
581 }
582 }
583 if (found
584 && ccline.cmdbuff[j - 1] == '.'
585 && ccline.cmdbuff[j - 2] == '.'
586 && (vim_ispathsep(ccline.cmdbuff[j - 3]) || j == i + 2))
587 {
588 cmdline_del(j - 2);
589 c = p_wc;
590 }
591 }
592 else if (c == K_UP)
593 {
594 /* go up a directory */
595 int found = FALSE;
596
597 j = ccline.cmdpos - 1;
598 i = (int)(xpc.xp_pattern - ccline.cmdbuff);
599 while (--j > i)
600 {
601 #ifdef FEAT_MBYTE
602 if (has_mbyte)
603 j -= (*mb_head_off)(ccline.cmdbuff, ccline.cmdbuff + j);
604 #endif
605 if (vim_ispathsep(ccline.cmdbuff[j])
606 #ifdef BACKSLASH_IN_FILENAME
607 && vim_strchr(" *?[{`$%#", ccline.cmdbuff[j + 1])
608 == NULL
609 #endif
610 )
611 {
612 if (found)
613 {
614 i = j + 1;
615 break;
616 }
617 else
618 found = TRUE;
619 }
620 }
621
622 if (!found)
623 j = i;
624 else if (STRNCMP(ccline.cmdbuff + j, upseg, 4) == 0)
625 j += 4;
626 else if (STRNCMP(ccline.cmdbuff + j, upseg + 1, 3) == 0
627 && j == i)
628 j += 3;
629 else
630 j = 0;
631 if (j > 0)
632 {
633 /* TODO this is only for DOS/UNIX systems - need to put in
634 * machine-specific stuff here and in upseg init */
635 cmdline_del(j);
636 put_on_cmdline(upseg + 1, 3, FALSE);
637 }
638 else if (ccline.cmdpos > i)
639 cmdline_del(i);
640 c = p_wc;
641 }
642 }
643 #if 0 /* If enabled <Down> on a file takes you _completely_ out of wildmenu */
644 if (p_wmnu
645 && (xpc.xp_context == EXPAND_FILES
646 || xpc.xp_context == EXPAND_MENUNAMES)
647 && (c == K_UP || c == K_DOWN))
648 xpc.xp_context = EXPAND_NOTHING;
649 #endif
650
651 #endif /* FEAT_WILDMENU */
652
653 /* CTRL-\ CTRL-N goes to Normal mode, CTRL-\ CTRL-G goes to Insert
654 * mode when 'insertmode' is set, CTRL-\ e prompts for an expression. */
655 if (c == Ctrl_BSL)
656 {
657 ++no_mapping;
658 ++allow_keys;
659 c = plain_vgetc();
660 --no_mapping;
661 --allow_keys;
662 /* CTRL-\ e doesn't work when obtaining an expression. */
663 if (c != Ctrl_N && c != Ctrl_G
664 && (c != 'e' || ccline.cmdfirstc == '='))
665 {
666 vungetc(c);
667 c = Ctrl_BSL;
668 }
669 #ifdef FEAT_EVAL
670 else if (c == 'e')
671 {
672 char_u *p = NULL;
673
674 /*
675 * Replace the command line with the result of an expression.
676 * Need to save and restore the current command line, to be
677 * able to enter a new one...
678 */
679 if (ccline.cmdpos == ccline.cmdlen)
680 new_cmdpos = 99999; /* keep it at the end */
681 else
682 new_cmdpos = ccline.cmdpos;
683
684 save_cmdline(&save_ccline);
685 c = get_expr_register();
686 restore_cmdline(&save_ccline);
687 if (c == '=')
688 {
689 /* Need to save and restore ccline. And set "textlock"
690 * to avoid nasty things like going to another buffer when
691 * evaluating an expression. */
692 save_cmdline(&save_ccline);
693 ++textlock;
694 p = get_expr_line();
695 --textlock;
696 restore_cmdline(&save_ccline);
697
698 if (p != NULL && realloc_cmdbuff((int)STRLEN(p) + 1) == OK)
699 {
700 ccline.cmdlen = (int)STRLEN(p);
701 STRCPY(ccline.cmdbuff, p);
702 vim_free(p);
703
704 /* Restore the cursor or use the position set with
705 * set_cmdline_pos(). */
706 if (new_cmdpos > ccline.cmdlen)
707 ccline.cmdpos = ccline.cmdlen;
708 else
709 ccline.cmdpos = new_cmdpos;
710
711 KeyTyped = FALSE; /* Don't do p_wc completion. */
712 redrawcmd();
713 goto cmdline_changed;
714 }
715 }
716 beep_flush();
717 c = ESC;
718 }
719 #endif
720 else
721 {
722 if (c == Ctrl_G && p_im && restart_edit == 0)
723 restart_edit = 'a';
724 gotesc = TRUE; /* will free ccline.cmdbuff after putting it
725 in history */
726 goto returncmd; /* back to Normal mode */
727 }
728 }
729
730 #ifdef FEAT_CMDWIN
731 if (c == cedit_key || c == K_CMDWIN)
732 {
733 /*
734 * Open a window to edit the command line (and history).
735 */
736 c = ex_window();
737 some_key_typed = TRUE;
738 }
739 # ifdef FEAT_DIGRAPHS
740 else
741 # endif
742 #endif
743 #ifdef FEAT_DIGRAPHS
744 c = do_digraph(c);
745 #endif
746
747 if (c == '\n' || c == '\r' || c == K_KENTER || (c == ESC
748 && (!KeyTyped || vim_strchr(p_cpo, CPO_ESC) != NULL)))
749 {
750 /* In Ex mode a backslash escapes a newline. */
751 if (exmode_active
752 && c != ESC
753 && ccline.cmdpos == ccline.cmdlen
754 && ccline.cmdpos > 0
755 && ccline.cmdbuff[ccline.cmdpos - 1] == '\\')
756 {
757 if (c == K_KENTER)
758 c = '\n';
759 }
760 else
761 {
762 gotesc = FALSE; /* Might have typed ESC previously, don't
763 truncate the cmdline now. */
764 if (ccheck_abbr(c + ABBR_OFF))
765 goto cmdline_changed;
766 if (!cmd_silent)
767 {
768 windgoto(msg_row, 0);
769 out_flush();
770 }
771 break;
772 }
773 }
774
775 /*
776 * Completion for 'wildchar' or 'wildcharm' key.
777 * - hitting <ESC> twice means: abandon command line.
778 * - wildcard expansion is only done when the 'wildchar' key is really
779 * typed, not when it comes from a macro
780 */
781 if ((c == p_wc && !gotesc && KeyTyped) || c == p_wcm)
782 {
783 if (xpc.xp_numfiles > 0) /* typed p_wc at least twice */
784 {
785 /* if 'wildmode' contains "list" may still need to list */
786 if (xpc.xp_numfiles > 1
787 && !did_wild_list
788 && (wim_flags[wim_index] & WIM_LIST))
789 {
790 (void)showmatches(&xpc, FALSE);
791 redrawcmd();
792 did_wild_list = TRUE;
793 }
794 if (wim_flags[wim_index] & WIM_LONGEST)
795 res = nextwild(&xpc, WILD_LONGEST, WILD_NO_BEEP);
796 else if (wim_flags[wim_index] & WIM_FULL)
797 res = nextwild(&xpc, WILD_NEXT, WILD_NO_BEEP);
798 else
799 res = OK; /* don't insert 'wildchar' now */
800 }
801 else /* typed p_wc first time */
802 {
803 wim_index = 0;
804 j = ccline.cmdpos;
805 /* if 'wildmode' first contains "longest", get longest
806 * common part */
807 if (wim_flags[0] & WIM_LONGEST)
808 res = nextwild(&xpc, WILD_LONGEST, WILD_NO_BEEP);
809 else
810 res = nextwild(&xpc, WILD_EXPAND_KEEP, WILD_NO_BEEP);
811
812 /* if interrupted while completing, behave like it failed */
813 if (got_int)
814 {
815 (void)vpeekc(); /* remove <C-C> from input stream */
816 got_int = FALSE; /* don't abandon the command line */
817 (void)ExpandOne(&xpc, NULL, NULL, 0, WILD_FREE);
818 #ifdef FEAT_WILDMENU
819 xpc.xp_context = EXPAND_NOTHING;
820 #endif
821 goto cmdline_changed;
822 }
823
824 /* when more than one match, and 'wildmode' first contains
825 * "list", or no change and 'wildmode' contains "longest,list",
826 * list all matches */
827 if (res == OK && xpc.xp_numfiles > 1)
828 {
829 /* a "longest" that didn't do anything is skipped (but not
830 * "list:longest") */
831 if (wim_flags[0] == WIM_LONGEST && ccline.cmdpos == j)
832 wim_index = 1;
833 if ((wim_flags[wim_index] & WIM_LIST)
834 #ifdef FEAT_WILDMENU
835 || (p_wmnu && (wim_flags[wim_index] & WIM_FULL) != 0)
836 #endif
837 )
838 {
839 if (!(wim_flags[0] & WIM_LONGEST))
840 {
841 #ifdef FEAT_WILDMENU
842 int p_wmnu_save = p_wmnu;
843 p_wmnu = 0;
844 #endif
845 nextwild(&xpc, WILD_PREV, 0); /* remove match */
846 #ifdef FEAT_WILDMENU
847 p_wmnu = p_wmnu_save;
848 #endif
849 }
850 #ifdef FEAT_WILDMENU
851 (void)showmatches(&xpc, p_wmnu
852 && ((wim_flags[wim_index] & WIM_LIST) == 0));
853 #else
854 (void)showmatches(&xpc, FALSE);
855 #endif
856 redrawcmd();
857 did_wild_list = TRUE;
858 if (wim_flags[wim_index] & WIM_LONGEST)
859 nextwild(&xpc, WILD_LONGEST, WILD_NO_BEEP);
860 else if (wim_flags[wim_index] & WIM_FULL)
861 nextwild(&xpc, WILD_NEXT, WILD_NO_BEEP);
862 }
863 else
864 vim_beep();
865 }
866 #ifdef FEAT_WILDMENU
867 else if (xpc.xp_numfiles == -1)
868 xpc.xp_context = EXPAND_NOTHING;
869 #endif
870 }
871 if (wim_index < 3)
872 ++wim_index;
873 if (c == ESC)
874 gotesc = TRUE;
875 if (res == OK)
876 goto cmdline_changed;
877 }
878
879 gotesc = FALSE;
880
881 /* <S-Tab> goes to last match, in a clumsy way */
882 if (c == K_S_TAB && KeyTyped)
883 {
884 if (nextwild(&xpc, WILD_EXPAND_KEEP, 0) == OK
885 && nextwild(&xpc, WILD_PREV, 0) == OK
886 && nextwild(&xpc, WILD_PREV, 0) == OK)
887 goto cmdline_changed;
888 }
889
890 if (c == NUL || c == K_ZERO) /* NUL is stored as NL */
891 c = NL;
892
893 do_abbr = TRUE; /* default: check for abbreviation */
894
895 /*
896 * Big switch for a typed command line character.
897 */
898 switch (c)
899 {
900 case K_BS:
901 case Ctrl_H:
902 case K_DEL:
903 case K_KDEL:
904 case Ctrl_W:
905 #ifdef FEAT_FKMAP
906 if (cmd_fkmap && c == K_BS)
907 c = K_DEL;
908 #endif
909 if (c == K_KDEL)
910 c = K_DEL;
911
912 /*
913 * delete current character is the same as backspace on next
914 * character, except at end of line
915 */
916 if (c == K_DEL && ccline.cmdpos != ccline.cmdlen)
917 ++ccline.cmdpos;
918 #ifdef FEAT_MBYTE
919 if (has_mbyte && c == K_DEL)
920 ccline.cmdpos += mb_off_next(ccline.cmdbuff,
921 ccline.cmdbuff + ccline.cmdpos);
922 #endif
923 if (ccline.cmdpos > 0)
924 {
925 char_u *p;
926
927 j = ccline.cmdpos;
928 p = ccline.cmdbuff + j;
929 #ifdef FEAT_MBYTE
930 if (has_mbyte)
931 {
932 p = mb_prevptr(ccline.cmdbuff, p);
933 if (c == Ctrl_W)
934 {
935 while (p > ccline.cmdbuff && vim_isspace(*p))
936 p = mb_prevptr(ccline.cmdbuff, p);
937 i = mb_get_class(p);
938 while (p > ccline.cmdbuff && mb_get_class(p) == i)
939 p = mb_prevptr(ccline.cmdbuff, p);
940 if (mb_get_class(p) != i)
941 p += (*mb_ptr2len)(p);
942 }
943 }
944 else
945 #endif
946 if (c == Ctrl_W)
947 {
948 while (p > ccline.cmdbuff && vim_isspace(p[-1]))
949 --p;
950 i = vim_iswordc(p[-1]);
951 while (p > ccline.cmdbuff && !vim_isspace(p[-1])
952 && vim_iswordc(p[-1]) == i)
953 --p;
954 }
955 else
956 --p;
957 ccline.cmdpos = (int)(p - ccline.cmdbuff);
958 ccline.cmdlen -= j - ccline.cmdpos;
959 i = ccline.cmdpos;
960 while (i < ccline.cmdlen)
961 ccline.cmdbuff[i++] = ccline.cmdbuff[j++];
962
963 /* Truncate at the end, required for multi-byte chars. */
964 ccline.cmdbuff[ccline.cmdlen] = NUL;
965 redrawcmd();
966 }
967 else if (ccline.cmdlen == 0 && c != Ctrl_W
968 && ccline.cmdprompt == NULL && indent == 0)
969 {
970 /* In ex and debug mode it doesn't make sense to return. */
971 if (exmode_active
972 #ifdef FEAT_EVAL
973 || ccline.cmdfirstc == '>'
974 #endif
975 )
976 goto cmdline_not_changed;
977
978 vim_free(ccline.cmdbuff); /* no commandline to return */
979 ccline.cmdbuff = NULL;
980 if (!cmd_silent)
981 {
982 #ifdef FEAT_RIGHTLEFT
983 if (cmdmsg_rl)
984 msg_col = Columns;
985 else
986 #endif
987 msg_col = 0;
988 msg_putchar(' '); /* delete ':' */
989 }
990 redraw_cmdline = TRUE;
991 goto returncmd; /* back to cmd mode */
992 }
993 goto cmdline_changed;
994
995 case K_INS:
996 case K_KINS:
997 #ifdef FEAT_FKMAP
998 /* if Farsi mode set, we are in reverse insert mode -
999 Do not change the mode */
1000 if (cmd_fkmap)
1001 beep_flush();
1002 else
1003 #endif
1004 ccline.overstrike = !ccline.overstrike;
1005 #ifdef CURSOR_SHAPE
1006 ui_cursor_shape(); /* may show different cursor shape */
1007 #endif
1008 goto cmdline_not_changed;
1009
1010 case Ctrl_HAT:
1011 if (map_to_exists_mode((char_u *)"", LANGMAP, FALSE))
1012 {
1013 /* ":lmap" mappings exists, toggle use of mappings. */
1014 State ^= LANGMAP;
1015 #ifdef USE_IM_CONTROL
1016 im_set_active(FALSE); /* Disable input method */
1017 #endif
1018 if (b_im_ptr != NULL)
1019 {
1020 if (State & LANGMAP)
1021 *b_im_ptr = B_IMODE_LMAP;
1022 else
1023 *b_im_ptr = B_IMODE_NONE;
1024 }
1025 }
1026 #ifdef USE_IM_CONTROL
1027 else
1028 {
1029 /* There are no ":lmap" mappings, toggle IM. When
1030 * 'imdisable' is set don't try getting the status, it's
1031 * always off. */
1032 if ((p_imdisable && b_im_ptr != NULL)
1033 ? *b_im_ptr == B_IMODE_IM : im_get_status())
1034 {
1035 im_set_active(FALSE); /* Disable input method */
1036 if (b_im_ptr != NULL)
1037 *b_im_ptr = B_IMODE_NONE;
1038 }
1039 else
1040 {
1041 im_set_active(TRUE); /* Enable input method */
1042 if (b_im_ptr != NULL)
1043 *b_im_ptr = B_IMODE_IM;
1044 }
1045 }
1046 #endif
1047 if (b_im_ptr != NULL)
1048 {
1049 if (b_im_ptr == &curbuf->b_p_iminsert)
1050 set_iminsert_global();
1051 else
1052 set_imsearch_global();
1053 }
1054 #ifdef CURSOR_SHAPE
1055 ui_cursor_shape(); /* may show different cursor shape */
1056 #endif
1057 #if defined(FEAT_WINDOWS) && defined(FEAT_KEYMAP)
1058 /* Show/unshow value of 'keymap' in status lines later. */
1059 status_redraw_curbuf();
1060 #endif
1061 goto cmdline_not_changed;
1062
1063 /* case '@': only in very old vi */
1064 case Ctrl_U:
1065 /* delete all characters left of the cursor */
1066 j = ccline.cmdpos;
1067 ccline.cmdlen -= j;
1068 i = ccline.cmdpos = 0;
1069 while (i < ccline.cmdlen)
1070 ccline.cmdbuff[i++] = ccline.cmdbuff[j++];
1071 /* Truncate at the end, required for multi-byte chars. */
1072 ccline.cmdbuff[ccline.cmdlen] = NUL;
1073 redrawcmd();
1074 goto cmdline_changed;
1075
1076 #ifdef FEAT_CLIPBOARD
1077 case Ctrl_Y:
1078 /* Copy the modeless selection, if there is one. */
1079 if (clip_star.state != SELECT_CLEARED)
1080 {
1081 if (clip_star.state == SELECT_DONE)
1082 clip_copy_modeless_selection(TRUE);
1083 goto cmdline_not_changed;
1084 }
1085 break;
1086 #endif
1087
1088 case ESC: /* get here if p_wc != ESC or when ESC typed twice */
1089 case Ctrl_C:
1090 /* In exmode it doesn't make sense to return. Except when
1091 * ":normal" runs out of characters. */
1092 if (exmode_active
1093 #ifdef FEAT_EX_EXTRA
1094 && (ex_normal_busy == 0 || typebuf.tb_len > 0)
1095 #endif
1096 )
1097 goto cmdline_not_changed;
1098
1099 gotesc = TRUE; /* will free ccline.cmdbuff after
1100 putting it in history */
1101 goto returncmd; /* back to cmd mode */
1102
1103 case Ctrl_R: /* insert register */
1104 #ifdef USE_ON_FLY_SCROLL
1105 dont_scroll = TRUE; /* disallow scrolling here */
1106 #endif
1107 putcmdline('"', TRUE);
1108 ++no_mapping;
1109 i = c = plain_vgetc(); /* CTRL-R <char> */
1110 if (i == Ctrl_O)
1111 i = Ctrl_R; /* CTRL-R CTRL-O == CTRL-R CTRL-R */
1112 if (i == Ctrl_R)
1113 c = plain_vgetc(); /* CTRL-R CTRL-R <char> */
1114 --no_mapping;
1115 #ifdef FEAT_EVAL
1116 /*
1117 * Insert the result of an expression.
1118 * Need to save the current command line, to be able to enter
1119 * a new one...
1120 */
1121 new_cmdpos = -1;
1122 if (c == '=')
1123 {
1124 if (ccline.cmdfirstc == '=')/* can't do this recursively */
1125 {
1126 beep_flush();
1127 c = ESC;
1128 }
1129 else
1130 {
1131 save_cmdline(&save_ccline);
1132 c = get_expr_register();
1133 restore_cmdline(&save_ccline);
1134 }
1135 }
1136 #endif
1137 if (c != ESC) /* use ESC to cancel inserting register */
1138 {
1139 cmdline_paste(c, i == Ctrl_R, FALSE);
1140
1141 #ifdef FEAT_EVAL
1142 /* When there was a serious error abort getting the
1143 * command line. */
1144 if (aborting())
1145 {
1146 gotesc = TRUE; /* will free ccline.cmdbuff after
1147 putting it in history */
1148 goto returncmd; /* back to cmd mode */
1149 }
1150 #endif
1151 KeyTyped = FALSE; /* Don't do p_wc completion. */
1152 #ifdef FEAT_EVAL
1153 if (new_cmdpos >= 0)
1154 {
1155 /* set_cmdline_pos() was used */
1156 if (new_cmdpos > ccline.cmdlen)
1157 ccline.cmdpos = ccline.cmdlen;
1158 else
1159 ccline.cmdpos = new_cmdpos;
1160 }
1161 #endif
1162 }
1163 redrawcmd();
1164 goto cmdline_changed;
1165
1166 case Ctrl_D:
1167 if (showmatches(&xpc, FALSE) == EXPAND_NOTHING)
1168 break; /* Use ^D as normal char instead */
1169
1170 redrawcmd();
1171 continue; /* don't do incremental search now */
1172
1173 case K_RIGHT:
1174 case K_S_RIGHT:
1175 case K_C_RIGHT:
1176 do
1177 {
1178 if (ccline.cmdpos >= ccline.cmdlen)
1179 break;
1180 i = cmdline_charsize(ccline.cmdpos);
1181 if (KeyTyped && ccline.cmdspos + i >= Columns * Rows)
1182 break;
1183 ccline.cmdspos += i;
1184 #ifdef FEAT_MBYTE
1185 if (has_mbyte)
1186 ccline.cmdpos += (*mb_ptr2len)(ccline.cmdbuff
1187 + ccline.cmdpos);
1188 else
1189 #endif
1190 ++ccline.cmdpos;
1191 }
1192 while ((c == K_S_RIGHT || c == K_C_RIGHT
1193 || (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL)))
1194 && ccline.cmdbuff[ccline.cmdpos] != ' ');
1195 #ifdef FEAT_MBYTE
1196 if (has_mbyte)
1197 set_cmdspos_cursor();
1198 #endif
1199 goto cmdline_not_changed;
1200
1201 case K_LEFT:
1202 case K_S_LEFT:
1203 case K_C_LEFT:
1204 if (ccline.cmdpos == 0)
1205 goto cmdline_not_changed;
1206 do
1207 {
1208 --ccline.cmdpos;
1209 #ifdef FEAT_MBYTE
1210 if (has_mbyte) /* move to first byte of char */
1211 ccline.cmdpos -= (*mb_head_off)(ccline.cmdbuff,
1212 ccline.cmdbuff + ccline.cmdpos);
1213 #endif
1214 ccline.cmdspos -= cmdline_charsize(ccline.cmdpos);
1215 }
1216 while (ccline.cmdpos > 0
1217 && (c == K_S_LEFT || c == K_C_LEFT
1218 || (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL)))
1219 && ccline.cmdbuff[ccline.cmdpos - 1] != ' ');
1220 #ifdef FEAT_MBYTE
1221 if (has_mbyte)
1222 set_cmdspos_cursor();
1223 #endif
1224 goto cmdline_not_changed;
1225
1226 case K_IGNORE:
1227 /* Ignore mouse event or ex_window() result. */
1228 goto cmdline_not_changed;
1229
1230 #ifdef FEAT_GUI_W32
1231 /* On Win32 ignore <M-F4>, we get it when closing the window was
1232 * cancelled. */
1233 case K_F4:
1234 if (mod_mask == MOD_MASK_ALT)
1235 {
1236 redrawcmd(); /* somehow the cmdline is cleared */
1237 goto cmdline_not_changed;
1238 }
1239 break;
1240 #endif
1241
1242 #ifdef FEAT_MOUSE
1243 case K_MIDDLEDRAG:
1244 case K_MIDDLERELEASE:
1245 goto cmdline_not_changed; /* Ignore mouse */
1246
1247 case K_MIDDLEMOUSE:
1248 # ifdef FEAT_GUI
1249 /* When GUI is active, also paste when 'mouse' is empty */
1250 if (!gui.in_use)
1251 # endif
1252 if (!mouse_has(MOUSE_COMMAND))
1253 goto cmdline_not_changed; /* Ignore mouse */
1254 # ifdef FEAT_CLIPBOARD
1255 if (clip_star.available)
1256 cmdline_paste('*', TRUE, TRUE);
1257 else
1258 # endif
1259 cmdline_paste(0, TRUE, TRUE);
1260 redrawcmd();
1261 goto cmdline_changed;
1262
1263 # ifdef FEAT_DND
1264 case K_DROP:
1265 cmdline_paste('~', TRUE, FALSE);
1266 redrawcmd();
1267 goto cmdline_changed;
1268 # endif
1269
1270 case K_LEFTDRAG:
1271 case K_LEFTRELEASE:
1272 case K_RIGHTDRAG:
1273 case K_RIGHTRELEASE:
1274 /* Ignore drag and release events when the button-down wasn't
1275 * seen before. */
1276 if (ignore_drag_release)
1277 goto cmdline_not_changed;
1278 /* FALLTHROUGH */
1279 case K_LEFTMOUSE:
1280 case K_RIGHTMOUSE:
1281 if (c == K_LEFTRELEASE || c == K_RIGHTRELEASE)
1282 ignore_drag_release = TRUE;
1283 else
1284 ignore_drag_release = FALSE;
1285 # ifdef FEAT_GUI
1286 /* When GUI is active, also move when 'mouse' is empty */
1287 if (!gui.in_use)
1288 # endif
1289 if (!mouse_has(MOUSE_COMMAND))
1290 goto cmdline_not_changed; /* Ignore mouse */
1291 # ifdef FEAT_CLIPBOARD
1292 if (mouse_row < cmdline_row && clip_star.available)
1293 {
1294 int button, is_click, is_drag;
1295
1296 /*
1297 * Handle modeless selection.
1298 */
1299 button = get_mouse_button(KEY2TERMCAP1(c),
1300 &is_click, &is_drag);
1301 if (mouse_model_popup() && button == MOUSE_LEFT
1302 && (mod_mask & MOD_MASK_SHIFT))
1303 {
1304 /* Translate shift-left to right button. */
1305 button = MOUSE_RIGHT;
1306 mod_mask &= ~MOD_MASK_SHIFT;
1307 }
1308 clip_modeless(button, is_click, is_drag);
1309 goto cmdline_not_changed;
1310 }
1311 # endif
1312
1313 set_cmdspos();
1314 for (ccline.cmdpos = 0; ccline.cmdpos < ccline.cmdlen;
1315 ++ccline.cmdpos)
1316 {
1317 i = cmdline_charsize(ccline.cmdpos);
1318 if (mouse_row <= cmdline_row + ccline.cmdspos / Columns
1319 && mouse_col < ccline.cmdspos % Columns + i)
1320 break;
1321 # ifdef FEAT_MBYTE
1322 if (has_mbyte)
1323 {
1324 /* Count ">" for double-wide char that doesn't fit. */
1325 correct_cmdspos(ccline.cmdpos, i);
1326 ccline.cmdpos += (*mb_ptr2len)(ccline.cmdbuff
1327 + ccline.cmdpos) - 1;
1328 }
1329 # endif
1330 ccline.cmdspos += i;
1331 }
1332 goto cmdline_not_changed;
1333
1334 /* Mouse scroll wheel: ignored here */
1335 case K_MOUSEDOWN:
1336 case K_MOUSEUP:
1337 /* Alternate buttons ignored here */
1338 case K_X1MOUSE:
1339 case K_X1DRAG:
1340 case K_X1RELEASE:
1341 case K_X2MOUSE:
1342 case K_X2DRAG:
1343 case K_X2RELEASE:
1344 goto cmdline_not_changed;
1345
1346 #endif /* FEAT_MOUSE */
1347
1348 #ifdef FEAT_GUI
1349 case K_LEFTMOUSE_NM: /* mousefocus click, ignored */
1350 case K_LEFTRELEASE_NM:
1351 goto cmdline_not_changed;
1352
1353 case K_VER_SCROLLBAR:
1354 if (msg_scrolled == 0)
1355 {
1356 gui_do_scroll();
1357 redrawcmd();
1358 }
1359 goto cmdline_not_changed;
1360
1361 case K_HOR_SCROLLBAR:
1362 if (msg_scrolled == 0)
1363 {
1364 gui_do_horiz_scroll();
1365 redrawcmd();
1366 }
1367 goto cmdline_not_changed;
1368 #endif
1369 #ifdef FEAT_GUI_TABLINE
1370 case K_TABLINE:
1371 case K_TABMENU:
1372 /* Don't want to change any tabs here. Make sure the same tab
1373 * is still selected. */
1374 if (gui_use_tabline())
1375 gui_mch_set_curtab(tabpage_index(curtab));
1376 goto cmdline_not_changed;
1377 #endif
1378
1379 case K_SELECT: /* end of Select mode mapping - ignore */
1380 goto cmdline_not_changed;
1381
1382 case Ctrl_B: /* begin of command line */
1383 case K_HOME:
1384 case K_KHOME:
1385 case K_S_HOME:
1386 case K_C_HOME:
1387 ccline.cmdpos = 0;
1388 set_cmdspos();
1389 goto cmdline_not_changed;
1390
1391 case Ctrl_E: /* end of command line */
1392 case K_END:
1393 case K_KEND:
1394 case K_S_END:
1395 case K_C_END:
1396 ccline.cmdpos = ccline.cmdlen;
1397 set_cmdspos_cursor();
1398 goto cmdline_not_changed;
1399
1400 case Ctrl_A: /* all matches */
1401 if (nextwild(&xpc, WILD_ALL, 0) == FAIL)
1402 break;
1403 goto cmdline_changed;
1404
1405 case Ctrl_L:
1406 #ifdef FEAT_SEARCH_EXTRA
1407 if (p_is && !cmd_silent && (firstc == '/' || firstc == '?'))
1408 {
1409 /* Add a character from under the cursor for 'incsearch' */
1410 if (did_incsearch
1411 && !equalpos(curwin->w_cursor, old_cursor))
1412 {
1413 c = gchar_cursor();
1414 if (c != NUL)
1415 {
1416 if (c == firstc || vim_strchr((char_u *)(
1417 p_magic ? "\\^$.*[" : "\\^$"), c)
1418 != NULL)
1419 {
1420 /* put a backslash before special characters */
1421 stuffcharReadbuff(c);
1422 c = '\\';
1423 }
1424 break;
1425 }
1426 }
1427 goto cmdline_not_changed;
1428 }
1429 #endif
1430
1431 /* completion: longest common part */
1432 if (nextwild(&xpc, WILD_LONGEST, 0) == FAIL)
1433 break;
1434 goto cmdline_changed;
1435
1436 case Ctrl_N: /* next match */
1437 case Ctrl_P: /* previous match */
1438 if (xpc.xp_numfiles > 0)
1439 {
1440 if (nextwild(&xpc, (c == Ctrl_P) ? WILD_PREV : WILD_NEXT, 0)
1441 == FAIL)
1442 break;
1443 goto cmdline_changed;
1444 }
1445
1446 #ifdef FEAT_CMDHIST
1447 case K_UP:
1448 case K_DOWN:
1449 case K_S_UP:
1450 case K_S_DOWN:
1451 case K_PAGEUP:
1452 case K_KPAGEUP:
1453 case K_PAGEDOWN:
1454 case K_KPAGEDOWN:
1455 if (hislen == 0 || firstc == NUL) /* no history */
1456 goto cmdline_not_changed;
1457
1458 i = hiscnt;
1459
1460 /* save current command string so it can be restored later */
1461 if (lookfor == NULL)
1462 {
1463 if ((lookfor = vim_strsave(ccline.cmdbuff)) == NULL)
1464 goto cmdline_not_changed;
1465 lookfor[ccline.cmdpos] = NUL;
1466 }
1467
1468 j = (int)STRLEN(lookfor);
1469 for (;;)
1470 {
1471 /* one step backwards */
1472 if (c == K_UP|| c == K_S_UP || c == Ctrl_P
1473 || c == K_PAGEUP || c == K_KPAGEUP)
1474 {
1475 if (hiscnt == hislen) /* first time */
1476 hiscnt = hisidx[histype];
1477 else if (hiscnt == 0 && hisidx[histype] != hislen - 1)
1478 hiscnt = hislen - 1;
1479 else if (hiscnt != hisidx[histype] + 1)
1480 --hiscnt;
1481 else /* at top of list */
1482 {
1483 hiscnt = i;
1484 break;
1485 }
1486 }
1487 else /* one step forwards */
1488 {
1489 /* on last entry, clear the line */
1490 if (hiscnt == hisidx[histype])
1491 {
1492 hiscnt = hislen;
1493 break;
1494 }
1495
1496 /* not on a history line, nothing to do */
1497 if (hiscnt == hislen)
1498 break;
1499 if (hiscnt == hislen - 1) /* wrap around */
1500 hiscnt = 0;
1501 else
1502 ++hiscnt;
1503 }
1504 if (hiscnt < 0 || history[histype][hiscnt].hisstr == NULL)
1505 {
1506 hiscnt = i;
1507 break;
1508 }
1509 if ((c != K_UP && c != K_DOWN)
1510 || hiscnt == i
1511 || STRNCMP(history[histype][hiscnt].hisstr,
1512 lookfor, (size_t)j) == 0)
1513 break;
1514 }
1515
1516 if (hiscnt != i) /* jumped to other entry */
1517 {
1518 char_u *p;
1519 int len;
1520 int old_firstc;
1521
1522 vim_free(ccline.cmdbuff);
1523 xpc.xp_context = EXPAND_NOTHING;
1524 if (hiscnt == hislen)
1525 p = lookfor; /* back to the old one */
1526 else
1527 p = history[histype][hiscnt].hisstr;
1528
1529 if (histype == HIST_SEARCH
1530 && p != lookfor
1531 && (old_firstc = p[STRLEN(p) + 1]) != firstc)
1532 {
1533 /* Correct for the separator character used when
1534 * adding the history entry vs the one used now.
1535 * First loop: count length.
1536 * Second loop: copy the characters. */
1537 for (i = 0; i <= 1; ++i)
1538 {
1539 len = 0;
1540 for (j = 0; p[j] != NUL; ++j)
1541 {
1542 /* Replace old sep with new sep, unless it is
1543 * escaped. */
1544 if (p[j] == old_firstc
1545 && (j == 0 || p[j - 1] != '\\'))
1546 {
1547 if (i > 0)
1548 ccline.cmdbuff[len] = firstc;
1549 }
1550 else
1551 {
1552 /* Escape new sep, unless it is already
1553 * escaped. */
1554 if (p[j] == firstc
1555 && (j == 0 || p[j - 1] != '\\'))
1556 {
1557 if (i > 0)
1558 ccline.cmdbuff[len] = '\\';
1559 ++len;
1560 }
1561 if (i > 0)
1562 ccline.cmdbuff[len] = p[j];
1563 }
1564 ++len;
1565 }
1566 if (i == 0)
1567 {
1568 alloc_cmdbuff(len);
1569 if (ccline.cmdbuff == NULL)
1570 goto returncmd;
1571 }
1572 }
1573 ccline.cmdbuff[len] = NUL;
1574 }
1575 else
1576 {
1577 alloc_cmdbuff((int)STRLEN(p));
1578 if (ccline.cmdbuff == NULL)
1579 goto returncmd;
1580 STRCPY(ccline.cmdbuff, p);
1581 }
1582
1583 ccline.cmdpos = ccline.cmdlen = (int)STRLEN(ccline.cmdbuff);
1584 redrawcmd();
1585 goto cmdline_changed;
1586 }
1587 beep_flush();
1588 goto cmdline_not_changed;
1589 #endif
1590
1591 case Ctrl_V:
1592 case Ctrl_Q:
1593 #ifdef FEAT_MOUSE
1594 ignore_drag_release = TRUE;
1595 #endif
1596 putcmdline('^', TRUE);
1597 c = get_literal(); /* get next (two) character(s) */
1598 do_abbr = FALSE; /* don't do abbreviation now */
1599 #ifdef FEAT_MBYTE
1600 /* may need to remove ^ when composing char was typed */
1601 if (enc_utf8 && utf_iscomposing(c) && !cmd_silent)
1602 {
1603 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
1604 msg_putchar(' ');
1605 cursorcmd();
1606 }
1607 #endif
1608 break;
1609
1610 #ifdef FEAT_DIGRAPHS
1611 case Ctrl_K:
1612 #ifdef FEAT_MOUSE
1613 ignore_drag_release = TRUE;
1614 #endif
1615 putcmdline('?', TRUE);
1616 #ifdef USE_ON_FLY_SCROLL
1617 dont_scroll = TRUE; /* disallow scrolling here */
1618 #endif
1619 c = get_digraph(TRUE);
1620 if (c != NUL)
1621 break;
1622
1623 redrawcmd();
1624 goto cmdline_not_changed;
1625 #endif /* FEAT_DIGRAPHS */
1626
1627 #ifdef FEAT_RIGHTLEFT
1628 case Ctrl__: /* CTRL-_: switch language mode */
1629 if (!p_ari)
1630 break;
1631 #ifdef FEAT_FKMAP
1632 if (p_altkeymap)
1633 {
1634 cmd_fkmap = !cmd_fkmap;
1635 if (cmd_fkmap) /* in Farsi always in Insert mode */
1636 ccline.overstrike = FALSE;
1637 }
1638 else /* Hebrew is default */
1639 #endif
1640 cmd_hkmap = !cmd_hkmap;
1641 goto cmdline_not_changed;
1642 #endif
1643
1644 default:
1645 #ifdef UNIX
1646 if (c == intr_char)
1647 {
1648 gotesc = TRUE; /* will free ccline.cmdbuff after
1649 putting it in history */
1650 goto returncmd; /* back to Normal mode */
1651 }
1652 #endif
1653 /*
1654 * Normal character with no special meaning. Just set mod_mask
1655 * to 0x0 so that typing Shift-Space in the GUI doesn't enter
1656 * the string <S-Space>. This should only happen after ^V.
1657 */
1658 if (!IS_SPECIAL(c))
1659 mod_mask = 0x0;
1660 break;
1661 }
1662 /*
1663 * End of switch on command line character.
1664 * We come here if we have a normal character.
1665 */
1666
1667 if (do_abbr && (IS_SPECIAL(c) || !vim_iswordc(c)) && ccheck_abbr(
1668 #ifdef FEAT_MBYTE
1669 /* Add ABBR_OFF for characters above 0x100, this is
1670 * what check_abbr() expects. */
1671 (has_mbyte && c >= 0x100) ? (c + ABBR_OFF) :
1672 #endif
1673 c))
1674 goto cmdline_changed;
1675
1676 /*
1677 * put the character in the command line
1678 */
1679 if (IS_SPECIAL(c) || mod_mask != 0)
1680 put_on_cmdline(get_special_key_name(c, mod_mask), -1, TRUE);
1681 else
1682 {
1683 #ifdef FEAT_MBYTE
1684 if (has_mbyte)
1685 {
1686 j = (*mb_char2bytes)(c, IObuff);
1687 IObuff[j] = NUL; /* exclude composing chars */
1688 put_on_cmdline(IObuff, j, TRUE);
1689 }
1690 else
1691 #endif
1692 {
1693 IObuff[0] = c;
1694 put_on_cmdline(IObuff, 1, TRUE);
1695 }
1696 }
1697 goto cmdline_changed;
1698
1699 /*
1700 * This part implements incremental searches for "/" and "?"
1701 * Jump to cmdline_not_changed when a character has been read but the command
1702 * line did not change. Then we only search and redraw if something changed in
1703 * the past.
1704 * Jump to cmdline_changed when the command line did change.
1705 * (Sorry for the goto's, I know it is ugly).
1706 */
1707 cmdline_not_changed:
1708 #ifdef FEAT_SEARCH_EXTRA
1709 if (!incsearch_postponed)
1710 continue;
1711 #endif
1712
1713 cmdline_changed:
1714 #ifdef FEAT_SEARCH_EXTRA
1715 /*
1716 * 'incsearch' highlighting.
1717 */
1718 if (p_is && !cmd_silent && (firstc == '/' || firstc == '?'))
1719 {
1720 pos_T end_pos;
1721 #ifdef FEAT_RELTIME
1722 proftime_T tm;
1723 #endif
1724
1725 /* if there is a character waiting, search and redraw later */
1726 if (char_avail())
1727 {
1728 incsearch_postponed = TRUE;
1729 continue;
1730 }
1731 incsearch_postponed = FALSE;
1732 curwin->w_cursor = old_cursor; /* start at old position */
1733
1734 /* If there is no command line, don't do anything */
1735 if (ccline.cmdlen == 0)
1736 i = 0;
1737 else
1738 {
1739 cursor_off(); /* so the user knows we're busy */
1740 out_flush();
1741 ++emsg_off; /* So it doesn't beep if bad expr */
1742 #ifdef FEAT_RELTIME
1743 /* Set the time limit to half a second. */
1744 profile_setlimit(500L, &tm);
1745 #endif
1746 i = do_search(NULL, firstc, ccline.cmdbuff, count,
1747 SEARCH_KEEP + SEARCH_OPT + SEARCH_NOOF + SEARCH_PEEK,
1748 #ifdef FEAT_RELTIME
1749 &tm
1750 #else
1751 NULL
1752 #endif
1753 );
1754 --emsg_off;
1755 /* if interrupted while searching, behave like it failed */
1756 if (got_int)
1757 {
1758 (void)vpeekc(); /* remove <C-C> from input stream */
1759 got_int = FALSE; /* don't abandon the command line */
1760 i = 0;
1761 }
1762 else if (char_avail())
1763 /* cancelled searching because a char was typed */
1764 incsearch_postponed = TRUE;
1765 }
1766 if (i != 0)
1767 highlight_match = TRUE; /* highlight position */
1768 else
1769 highlight_match = FALSE; /* remove highlight */
1770
1771 /* first restore the old curwin values, so the screen is
1772 * positioned in the same way as the actual search command */
1773 curwin->w_leftcol = old_leftcol;
1774 curwin->w_topline = old_topline;
1775 # ifdef FEAT_DIFF
1776 curwin->w_topfill = old_topfill;
1777 # endif
1778 curwin->w_botline = old_botline;
1779 changed_cline_bef_curs();
1780 update_topline();
1781
1782 if (i != 0)
1783 {
1784 pos_T save_pos = curwin->w_cursor;
1785
1786 /*
1787 * First move cursor to end of match, then to the start. This
1788 * moves the whole match onto the screen when 'nowrap' is set.
1789 */
1790 curwin->w_cursor.lnum += search_match_lines;
1791 curwin->w_cursor.col = search_match_endcol;
1792 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
1793 {
1794 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
1795 coladvance((colnr_T)MAXCOL);
1796 }
1797 validate_cursor();
1798 end_pos = curwin->w_cursor;
1799 curwin->w_cursor = save_pos;
1800 }
1801 else
1802 end_pos = curwin->w_cursor; /* shutup gcc 4 */
1803
1804 validate_cursor();
1805 # ifdef FEAT_WINDOWS
1806 /* May redraw the status line to show the cursor position. */
1807 if (p_ru && curwin->w_status_height > 0)
1808 curwin->w_redr_status = TRUE;
1809 # endif
1810
1811 save_cmdline(&save_ccline);
1812 update_screen(SOME_VALID);
1813 restore_cmdline(&save_ccline);
1814
1815 /* Leave it at the end to make CTRL-R CTRL-W work. */
1816 if (i != 0)
1817 curwin->w_cursor = end_pos;
1818
1819 msg_starthere();
1820 redrawcmdline();
1821 did_incsearch = TRUE;
1822 }
1823 #else /* FEAT_SEARCH_EXTRA */
1824 ;
1825 #endif
1826
1827 #ifdef FEAT_RIGHTLEFT
1828 if (cmdmsg_rl
1829 # ifdef FEAT_ARABIC
1830 || (p_arshape && !p_tbidi && enc_utf8)
1831 # endif
1832 )
1833 /* Always redraw the whole command line to fix shaping and
1834 * right-left typing. Not efficient, but it works. */
1835 redrawcmd();
1836 #endif
1837 }
1838
1839 returncmd:
1840
1841 #ifdef FEAT_RIGHTLEFT
1842 cmdmsg_rl = FALSE;
1843 #endif
1844
1845 #ifdef FEAT_FKMAP
1846 cmd_fkmap = 0;
1847 #endif
1848
1849 ExpandCleanup(&xpc);
1850 ccline.xpc = NULL;
1851
1852 #ifdef FEAT_SEARCH_EXTRA
1853 if (did_incsearch)
1854 {
1855 curwin->w_cursor = old_cursor;
1856 curwin->w_curswant = old_curswant;
1857 curwin->w_leftcol = old_leftcol;
1858 curwin->w_topline = old_topline;
1859 # ifdef FEAT_DIFF
1860 curwin->w_topfill = old_topfill;
1861 # endif
1862 curwin->w_botline = old_botline;
1863 highlight_match = FALSE;
1864 validate_cursor(); /* needed for TAB */
1865 redraw_later(SOME_VALID);
1866 }
1867 #endif
1868
1869 if (ccline.cmdbuff != NULL)
1870 {
1871 /*
1872 * Put line in history buffer (":" and "=" only when it was typed).
1873 */
1874 #ifdef FEAT_CMDHIST
1875 if (ccline.cmdlen && firstc != NUL
1876 && (some_key_typed || histype == HIST_SEARCH))
1877 {
1878 add_to_history(histype, ccline.cmdbuff, TRUE,
1879 histype == HIST_SEARCH ? firstc : NUL);
1880 if (firstc == ':')
1881 {
1882 vim_free(new_last_cmdline);
1883 new_last_cmdline = vim_strsave(ccline.cmdbuff);
1884 }
1885 }
1886 #endif
1887
1888 if (gotesc) /* abandon command line */
1889 {
1890 vim_free(ccline.cmdbuff);
1891 ccline.cmdbuff = NULL;
1892 if (msg_scrolled == 0)
1893 compute_cmdrow();
1894 MSG("");
1895 redraw_cmdline = TRUE;
1896 }
1897 }
1898
1899 /*
1900 * If the screen was shifted up, redraw the whole screen (later).
1901 * If the line is too long, clear it, so ruler and shown command do
1902 * not get printed in the middle of it.
1903 */
1904 msg_check();
1905 msg_scroll = save_msg_scroll;
1906 redir_off = FALSE;
1907
1908 /* When the command line was typed, no need for a wait-return prompt. */
1909 if (some_key_typed)
1910 need_wait_return = FALSE;
1911
1912 State = save_State;
1913 #ifdef USE_IM_CONTROL
1914 if (b_im_ptr != NULL && *b_im_ptr != B_IMODE_LMAP)
1915 im_save_status(b_im_ptr);
1916 im_set_active(FALSE);
1917 #endif
1918 #ifdef FEAT_MOUSE
1919 setmouse();
1920 #endif
1921 #ifdef CURSOR_SHAPE
1922 ui_cursor_shape(); /* may show different cursor shape */
1923 #endif
1924
1925 {
1926 char_u *p = ccline.cmdbuff;
1927
1928 /* Make ccline empty, getcmdline() may try to use it. */
1929 ccline.cmdbuff = NULL;
1930 return p;
1931 }
1932 }
1933
1934 #if (defined(FEAT_CRYPT) || defined(FEAT_EVAL)) || defined(PROTO)
1935 /*
1936 * Get a command line with a prompt.
1937 * This is prepared to be called recursively from getcmdline() (e.g. by
1938 * f_input() when evaluating an expression from CTRL-R =).
1939 * Returns the command line in allocated memory, or NULL.
1940 */
1941 char_u *
1942 getcmdline_prompt(firstc, prompt, attr, xp_context, xp_arg)
1943 int firstc;
1944 char_u *prompt; /* command line prompt */
1945 int attr; /* attributes for prompt */
1946 int xp_context; /* type of expansion */
1947 char_u *xp_arg; /* user-defined expansion argument */
1948 {
1949 char_u *s;
1950 struct cmdline_info save_ccline;
1951 int msg_col_save = msg_col;
1952
1953 save_cmdline(&save_ccline);
1954 ccline.cmdprompt = prompt;
1955 ccline.cmdattr = attr;
1956 # ifdef FEAT_EVAL
1957 ccline.xp_context = xp_context;
1958 ccline.xp_arg = xp_arg;
1959 ccline.input_fn = (firstc == '@');
1960 # endif
1961 s = getcmdline(firstc, 1L, 0);
1962 restore_cmdline(&save_ccline);
1963 /* Restore msg_col, the prompt from input() may have changed it. */
1964 msg_col = msg_col_save;
1965
1966 return s;
1967 }
1968 #endif
1969
1970 /*
1971 * Return TRUE when the text must not be changed and we can't switch to
1972 * another window or buffer. Used when editing the command line, evaluating
1973 * 'balloonexpr', etc.
1974 */
1975 int
1976 text_locked()
1977 {
1978 #ifdef FEAT_CMDWIN
1979 if (cmdwin_type != 0)
1980 return TRUE;
1981 #endif
1982 return textlock != 0;
1983 }
1984
1985 /*
1986 * Give an error message for a command that isn't allowed while the cmdline
1987 * window is open or editing the cmdline in another way.
1988 */
1989 void
1990 text_locked_msg()
1991 {
1992 #ifdef FEAT_CMDWIN
1993 if (cmdwin_type != 0)
1994 EMSG(_(e_cmdwin));
1995 else
1996 #endif
1997 EMSG(_(e_secure));
1998 }
1999
2000 #if defined(FEAT_AUTOCMD) || defined(PROTO)
2001 /*
2002 * Check if "curbuf_lock" or "allbuf_lock" is set and return TRUE when it is
2003 * and give an error message.
2004 */
2005 int
2006 curbuf_locked()
2007 {
2008 if (curbuf_lock > 0)
2009 {
2010 EMSG(_("E788: Not allowed to edit another buffer now"));
2011 return TRUE;
2012 }
2013 return allbuf_locked();
2014 }
2015
2016 /*
2017 * Check if "allbuf_lock" is set and return TRUE when it is and give an error
2018 * message.
2019 */
2020 int
2021 allbuf_locked()
2022 {
2023 if (allbuf_lock > 0)
2024 {
2025 EMSG(_("E811: Not allowed to change buffer information now"));
2026 return TRUE;
2027 }
2028 return FALSE;
2029 }
2030 #endif
2031
2032 static int
2033 cmdline_charsize(idx)
2034 int idx;
2035 {
2036 #if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
2037 if (cmdline_star > 0) /* showing '*', always 1 position */
2038 return 1;
2039 #endif
2040 return ptr2cells(ccline.cmdbuff + idx);
2041 }
2042
2043 /*
2044 * Compute the offset of the cursor on the command line for the prompt and
2045 * indent.
2046 */
2047 static void
2048 set_cmdspos()
2049 {
2050 if (ccline.cmdfirstc != NUL)
2051 ccline.cmdspos = 1 + ccline.cmdindent;
2052 else
2053 ccline.cmdspos = 0 + ccline.cmdindent;
2054 }
2055
2056 /*
2057 * Compute the screen position for the cursor on the command line.
2058 */
2059 static void
2060 set_cmdspos_cursor()
2061 {
2062 int i, m, c;
2063
2064 set_cmdspos();
2065 if (KeyTyped)
2066 {
2067 m = Columns * Rows;
2068 if (m < 0) /* overflow, Columns or Rows at weird value */
2069 m = MAXCOL;
2070 }
2071 else
2072 m = MAXCOL;
2073 for (i = 0; i < ccline.cmdlen && i < ccline.cmdpos; ++i)
2074 {
2075 c = cmdline_charsize(i);
2076 #ifdef FEAT_MBYTE
2077 /* Count ">" for double-wide multi-byte char that doesn't fit. */
2078 if (has_mbyte)
2079 correct_cmdspos(i, c);
2080 #endif
2081 /* If the cmdline doesn't fit, show cursor on last visible char.
2082 * Don't move the cursor itself, so we can still append. */
2083 if ((ccline.cmdspos += c) >= m)
2084 {
2085 ccline.cmdspos -= c;
2086 break;
2087 }
2088 #ifdef FEAT_MBYTE
2089 if (has_mbyte)
2090 i += (*mb_ptr2len)(ccline.cmdbuff + i) - 1;
2091 #endif
2092 }
2093 }
2094
2095 #ifdef FEAT_MBYTE
2096 /*
2097 * Check if the character at "idx", which is "cells" wide, is a multi-byte
2098 * character that doesn't fit, so that a ">" must be displayed.
2099 */
2100 static void
2101 correct_cmdspos(idx, cells)
2102 int idx;
2103 int cells;
2104 {
2105 if ((*mb_ptr2len)(ccline.cmdbuff + idx) > 1
2106 && (*mb_ptr2cells)(ccline.cmdbuff + idx) > 1
2107 && ccline.cmdspos % Columns + cells > Columns)
2108 ccline.cmdspos++;
2109 }
2110 #endif
2111
2112 /*
2113 * Get an Ex command line for the ":" command.
2114 */
2115 char_u *
2116 getexline(c, cookie, indent)
2117 int c; /* normally ':', NUL for ":append" */
2118 void *cookie UNUSED;
2119 int indent; /* indent for inside conditionals */
2120 {
2121 /* When executing a register, remove ':' that's in front of each line. */
2122 if (exec_from_reg && vpeekc() == ':')
2123 (void)vgetc();
2124 return getcmdline(c, 1L, indent);
2125 }
2126
2127 /*
2128 * Get an Ex command line for Ex mode.
2129 * In Ex mode we only use the OS supplied line editing features and no
2130 * mappings or abbreviations.
2131 * Returns a string in allocated memory or NULL.
2132 */
2133 char_u *
2134 getexmodeline(promptc, cookie, indent)
2135 int promptc; /* normally ':', NUL for ":append" and '?' for
2136 :s prompt */
2137 void *cookie UNUSED;
2138 int indent; /* indent for inside conditionals */
2139 {
2140 garray_T line_ga;
2141 char_u *pend;
2142 int startcol = 0;
2143 int c1 = 0;
2144 int escaped = FALSE; /* CTRL-V typed */
2145 int vcol = 0;
2146 char_u *p;
2147 int prev_char;
2148
2149 /* Switch cursor on now. This avoids that it happens after the "\n", which
2150 * confuses the system function that computes tabstops. */
2151 cursor_on();
2152
2153 /* always start in column 0; write a newline if necessary */
2154 compute_cmdrow();
2155 if ((msg_col || msg_didout) && promptc != '?')
2156 msg_putchar('\n');
2157 if (promptc == ':')
2158 {
2159 /* indent that is only displayed, not in the line itself */
2160 if (p_prompt)
2161 msg_putchar(':');
2162 while (indent-- > 0)
2163 msg_putchar(' ');
2164 startcol = msg_col;
2165 }
2166
2167 ga_init2(&line_ga, 1, 30);
2168
2169 /* autoindent for :insert and :append is in the line itself */
2170 if (promptc <= 0)
2171 {
2172 vcol = indent;
2173 while (indent >= 8)
2174 {
2175 ga_append(&line_ga, TAB);
2176 msg_puts((char_u *)" ");
2177 indent -= 8;
2178 }
2179 while (indent-- > 0)
2180 {
2181 ga_append(&line_ga, ' ');
2182 msg_putchar(' ');
2183 }
2184 }
2185 ++no_mapping;
2186 ++allow_keys;
2187
2188 /*
2189 * Get the line, one character at a time.
2190 */
2191 got_int = FALSE;
2192 while (!got_int)
2193 {
2194 if (ga_grow(&line_ga, 40) == FAIL)
2195 break;
2196
2197 /* Get one character at a time. Don't use inchar(), it can't handle
2198 * special characters. */
2199 prev_char = c1;
2200 c1 = vgetc();
2201
2202 /*
2203 * Handle line editing.
2204 * Previously this was left to the system, putting the terminal in
2205 * cooked mode, but then CTRL-D and CTRL-T can't be used properly.
2206 */
2207 if (got_int)
2208 {
2209 msg_putchar('\n');
2210 break;
2211 }
2212
2213 if (!escaped)
2214 {
2215 /* CR typed means "enter", which is NL */
2216 if (c1 == '\r')
2217 c1 = '\n';
2218
2219 if (c1 == BS || c1 == K_BS
2220 || c1 == DEL || c1 == K_DEL || c1 == K_KDEL)
2221 {
2222 if (line_ga.ga_len > 0)
2223 {
2224 --line_ga.ga_len;
2225 goto redraw;
2226 }
2227 continue;
2228 }
2229
2230 if (c1 == Ctrl_U)
2231 {
2232 msg_col = startcol;
2233 msg_clr_eos();
2234 line_ga.ga_len = 0;
2235 continue;
2236 }
2237
2238 if (c1 == Ctrl_T)
2239 {
2240 p = (char_u *)line_ga.ga_data;
2241 p[line_ga.ga_len] = NUL;
2242 indent = get_indent_str(p, 8);
2243 indent += curbuf->b_p_sw - indent % curbuf->b_p_sw;
2244 add_indent:
2245 while (get_indent_str(p, 8) < indent)
2246 {
2247 char_u *s = skipwhite(p);
2248
2249 ga_grow(&line_ga, 1);
2250 mch_memmove(s + 1, s, line_ga.ga_len - (s - p) + 1);
2251 *s = ' ';
2252 ++line_ga.ga_len;
2253 }
2254 redraw:
2255 /* redraw the line */
2256 msg_col = startcol;
2257 vcol = 0;
2258 for (p = (char_u *)line_ga.ga_data;
2259 p < (char_u *)line_ga.ga_data + line_ga.ga_len; ++p)
2260 {
2261 if (*p == TAB)
2262 {
2263 do
2264 {
2265 msg_putchar(' ');
2266 } while (++vcol % 8);
2267 }
2268 else
2269 {
2270 msg_outtrans_len(p, 1);
2271 vcol += char2cells(*p);
2272 }
2273 }
2274 msg_clr_eos();
2275 windgoto(msg_row, msg_col);
2276 continue;
2277 }
2278
2279 if (c1 == Ctrl_D)
2280 {
2281 /* Delete one shiftwidth. */
2282 p = (char_u *)line_ga.ga_data;
2283 if (prev_char == '0' || prev_char == '^')
2284 {
2285 if (prev_char == '^')
2286 ex_keep_indent = TRUE;
2287 indent = 0;
2288 p[--line_ga.ga_len] = NUL;
2289 }
2290 else
2291 {
2292 p[line_ga.ga_len] = NUL;
2293 indent = get_indent_str(p, 8);
2294 --indent;
2295 indent -= indent % curbuf->b_p_sw;
2296 }
2297 while (get_indent_str(p, 8) > indent)
2298 {
2299 char_u *s = skipwhite(p);
2300
2301 mch_memmove(s - 1, s, line_ga.ga_len - (s - p) + 1);
2302 --line_ga.ga_len;
2303 }
2304 goto add_indent;
2305 }
2306
2307 if (c1 == Ctrl_V || c1 == Ctrl_Q)
2308 {
2309 escaped = TRUE;
2310 continue;
2311 }
2312
2313 /* Ignore special key codes: mouse movement, K_IGNORE, etc. */
2314 if (IS_SPECIAL(c1))
2315 continue;
2316 }
2317
2318 if (IS_SPECIAL(c1))
2319 c1 = '?';
2320 ((char_u *)line_ga.ga_data)[line_ga.ga_len] = c1;
2321 if (c1 == '\n')
2322 msg_putchar('\n');
2323 else if (c1 == TAB)
2324 {
2325 /* Don't use chartabsize(), 'ts' can be different */
2326 do
2327 {
2328 msg_putchar(' ');
2329 } while (++vcol % 8);
2330 }
2331 else
2332 {
2333 msg_outtrans_len(
2334 ((char_u *)line_ga.ga_data) + line_ga.ga_len, 1);
2335 vcol += char2cells(c1);
2336 }
2337 ++line_ga.ga_len;
2338 escaped = FALSE;
2339
2340 windgoto(msg_row, msg_col);
2341 pend = (char_u *)(line_ga.ga_data) + line_ga.ga_len;
2342
2343 /* we are done when a NL is entered, but not when it comes after a
2344 * backslash */
2345 if (line_ga.ga_len > 0 && pend[-1] == '\n'
2346 && (line_ga.ga_len <= 1 || pend[-2] != '\\'))
2347 {
2348 --line_ga.ga_len;
2349 --pend;
2350 *pend = NUL;
2351 break;
2352 }
2353 }
2354
2355 --no_mapping;
2356 --allow_keys;
2357
2358 /* make following messages go to the next line */
2359 msg_didout = FALSE;
2360 msg_col = 0;
2361 if (msg_row < Rows - 1)
2362 ++msg_row;
2363 emsg_on_display = FALSE; /* don't want ui_delay() */
2364
2365 if (got_int)
2366 ga_clear(&line_ga);
2367
2368 return (char_u *)line_ga.ga_data;
2369 }
2370
2371 # if defined(MCH_CURSOR_SHAPE) || defined(FEAT_GUI) \
2372 || defined(FEAT_MOUSESHAPE) || defined(PROTO)
2373 /*
2374 * Return TRUE if ccline.overstrike is on.
2375 */
2376 int
2377 cmdline_overstrike()
2378 {
2379 return ccline.overstrike;
2380 }
2381
2382 /*
2383 * Return TRUE if the cursor is at the end of the cmdline.
2384 */
2385 int
2386 cmdline_at_end()
2387 {
2388 return (ccline.cmdpos >= ccline.cmdlen);
2389 }
2390 #endif
2391
2392 #if (defined(FEAT_XIM) && (defined(FEAT_GUI_GTK))) || defined(PROTO)
2393 /*
2394 * Return the virtual column number at the current cursor position.
2395 * This is used by the IM code to obtain the start of the preedit string.
2396 */
2397 colnr_T
2398 cmdline_getvcol_cursor()
2399 {
2400 if (ccline.cmdbuff == NULL || ccline.cmdpos > ccline.cmdlen)
2401 return MAXCOL;
2402
2403 # ifdef FEAT_MBYTE
2404 if (has_mbyte)
2405 {
2406 colnr_T col;
2407 int i = 0;
2408
2409 for (col = 0; i < ccline.cmdpos; ++col)
2410 i += (*mb_ptr2len)(ccline.cmdbuff + i);
2411
2412 return col;
2413 }
2414 else
2415 # endif
2416 return ccline.cmdpos;
2417 }
2418 #endif
2419
2420 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
2421 /*
2422 * If part of the command line is an IM preedit string, redraw it with
2423 * IM feedback attributes. The cursor position is restored after drawing.
2424 */
2425 static void
2426 redrawcmd_preedit()
2427 {
2428 if ((State & CMDLINE)
2429 && xic != NULL
2430 /* && im_get_status() doesn't work when using SCIM */
2431 && !p_imdisable
2432 && im_is_preediting())
2433 {
2434 int cmdpos = 0;
2435 int cmdspos;
2436 int old_row;
2437 int old_col;
2438 colnr_T col;
2439
2440 old_row = msg_row;
2441 old_col = msg_col;
2442 cmdspos = ((ccline.cmdfirstc != NUL) ? 1 : 0) + ccline.cmdindent;
2443
2444 # ifdef FEAT_MBYTE
2445 if (has_mbyte)
2446 {
2447 for (col = 0; col < preedit_start_col
2448 && cmdpos < ccline.cmdlen; ++col)
2449 {
2450 cmdspos += (*mb_ptr2cells)(ccline.cmdbuff + cmdpos);
2451 cmdpos += (*mb_ptr2len)(ccline.cmdbuff + cmdpos);
2452 }
2453 }
2454 else
2455 # endif
2456 {
2457 cmdspos += preedit_start_col;
2458 cmdpos += preedit_start_col;
2459 }
2460
2461 msg_row = cmdline_row + (cmdspos / (int)Columns);
2462 msg_col = cmdspos % (int)Columns;
2463 if (msg_row >= Rows)
2464 msg_row = Rows - 1;
2465
2466 for (col = 0; cmdpos < ccline.cmdlen; ++col)
2467 {
2468 int char_len;
2469 int char_attr;
2470
2471 char_attr = im_get_feedback_attr(col);
2472 if (char_attr < 0)
2473 break; /* end of preedit string */
2474
2475 # ifdef FEAT_MBYTE
2476 if (has_mbyte)
2477 char_len = (*mb_ptr2len)(ccline.cmdbuff + cmdpos);
2478 else
2479 # endif
2480 char_len = 1;
2481
2482 msg_outtrans_len_attr(ccline.cmdbuff + cmdpos, char_len, char_attr);
2483 cmdpos += char_len;
2484 }
2485
2486 msg_row = old_row;
2487 msg_col = old_col;
2488 }
2489 }
2490 #endif /* FEAT_XIM && FEAT_GUI_GTK */
2491
2492 /*
2493 * Allocate a new command line buffer.
2494 * Assigns the new buffer to ccline.cmdbuff and ccline.cmdbufflen.
2495 * Returns the new value of ccline.cmdbuff and ccline.cmdbufflen.
2496 */
2497 static void
2498 alloc_cmdbuff(len)
2499 int len;
2500 {
2501 /*
2502 * give some extra space to avoid having to allocate all the time
2503 */
2504 if (len < 80)
2505 len = 100;
2506 else
2507 len += 20;
2508
2509 ccline.cmdbuff = alloc(len); /* caller should check for out-of-memory */
2510 ccline.cmdbufflen = len;
2511 }
2512
2513 /*
2514 * Re-allocate the command line to length len + something extra.
2515 * return FAIL for failure, OK otherwise
2516 */
2517 static int
2518 realloc_cmdbuff(len)
2519 int len;
2520 {
2521 char_u *p;
2522
2523 p = ccline.cmdbuff;
2524 alloc_cmdbuff(len); /* will get some more */
2525 if (ccline.cmdbuff == NULL) /* out of memory */
2526 {
2527 ccline.cmdbuff = p; /* keep the old one */
2528 return FAIL;
2529 }
2530 mch_memmove(ccline.cmdbuff, p, (size_t)ccline.cmdlen + 1);
2531 vim_free(p);
2532
2533 if (ccline.xpc != NULL
2534 && ccline.xpc->xp_pattern != NULL
2535 && ccline.xpc->xp_context != EXPAND_NOTHING
2536 && ccline.xpc->xp_context != EXPAND_UNSUCCESSFUL)
2537 {
2538 int i = (int)(ccline.xpc->xp_pattern - p);
2539
2540 /* If xp_pattern points inside the old cmdbuff it needs to be adjusted
2541 * to point into the newly allocated memory. */
2542 if (i >= 0 && i <= ccline.cmdlen)
2543 ccline.xpc->xp_pattern = ccline.cmdbuff + i;
2544 }
2545
2546 return OK;
2547 }
2548
2549 #if defined(FEAT_ARABIC) || defined(PROTO)
2550 static char_u *arshape_buf = NULL;
2551
2552 # if defined(EXITFREE) || defined(PROTO)
2553 void
2554 free_cmdline_buf()
2555 {
2556 vim_free(arshape_buf);
2557 }
2558 # endif
2559 #endif
2560
2561 /*
2562 * Draw part of the cmdline at the current cursor position. But draw stars
2563 * when cmdline_star is TRUE.
2564 */
2565 static void
2566 draw_cmdline(start, len)
2567 int start;
2568 int len;
2569 {
2570 #if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
2571 int i;
2572
2573 if (cmdline_star > 0)
2574 for (i = 0; i < len; ++i)
2575 {
2576 msg_putchar('*');
2577 # ifdef FEAT_MBYTE
2578 if (has_mbyte)
2579 i += (*mb_ptr2len)(ccline.cmdbuff + start + i) - 1;
2580 # endif
2581 }
2582 else
2583 #endif
2584 #ifdef FEAT_ARABIC
2585 if (p_arshape && !p_tbidi && enc_utf8 && len > 0)
2586 {
2587 static int buflen = 0;
2588 char_u *p;
2589 int j;
2590 int newlen = 0;
2591 int mb_l;
2592 int pc, pc1 = 0;
2593 int prev_c = 0;
2594 int prev_c1 = 0;
2595 int u8c;
2596 int u8cc[MAX_MCO];
2597 int nc = 0;
2598
2599 /*
2600 * Do arabic shaping into a temporary buffer. This is very
2601 * inefficient!
2602 */
2603 if (len * 2 + 2 > buflen)
2604 {
2605 /* Re-allocate the buffer. We keep it around to avoid a lot of
2606 * alloc()/free() calls. */
2607 vim_free(arshape_buf);
2608 buflen = len * 2 + 2;
2609 arshape_buf = alloc(buflen);
2610 if (arshape_buf == NULL)
2611 return; /* out of memory */
2612 }
2613
2614 if (utf_iscomposing(utf_ptr2char(ccline.cmdbuff + start)))
2615 {
2616 /* Prepend a space to draw the leading composing char on. */
2617 arshape_buf[0] = ' ';
2618 newlen = 1;
2619 }
2620
2621 for (j = start; j < start + len; j += mb_l)
2622 {
2623 p = ccline.cmdbuff + j;
2624 u8c = utfc_ptr2char_len(p, u8cc, start + len - j);
2625 mb_l = utfc_ptr2len_len(p, start + len - j);
2626 if (ARABIC_CHAR(u8c))
2627 {
2628 /* Do Arabic shaping. */
2629 if (cmdmsg_rl)
2630 {
2631 /* displaying from right to left */
2632 pc = prev_c;
2633 pc1 = prev_c1;
2634 prev_c1 = u8cc[0];
2635 if (j + mb_l >= start + len)
2636 nc = NUL;
2637 else
2638 nc = utf_ptr2char(p + mb_l);
2639 }
2640 else
2641 {
2642 /* displaying from left to right */
2643 if (j + mb_l >= start + len)
2644 pc = NUL;
2645 else
2646 {
2647 int pcc[MAX_MCO];
2648
2649 pc = utfc_ptr2char_len(p + mb_l, pcc,
2650 start + len - j - mb_l);
2651 pc1 = pcc[0];
2652 }
2653 nc = prev_c;
2654 }
2655 prev_c = u8c;
2656
2657 u8c = arabic_shape(u8c, NULL, &u8cc[0], pc, pc1, nc);
2658
2659 newlen += (*mb_char2bytes)(u8c, arshape_buf + newlen);
2660 if (u8cc[0] != 0)
2661 {
2662 newlen += (*mb_char2bytes)(u8cc[0], arshape_buf + newlen);
2663 if (u8cc[1] != 0)
2664 newlen += (*mb_char2bytes)(u8cc[1],
2665 arshape_buf + newlen);
2666 }
2667 }
2668 else
2669 {
2670 prev_c = u8c;
2671 mch_memmove(arshape_buf + newlen, p, mb_l);
2672 newlen += mb_l;
2673 }
2674 }
2675
2676 msg_outtrans_len(arshape_buf, newlen);
2677 }
2678 else
2679 #endif
2680 msg_outtrans_len(ccline.cmdbuff + start, len);
2681 }
2682
2683 /*
2684 * Put a character on the command line. Shifts the following text to the
2685 * right when "shift" is TRUE. Used for CTRL-V, CTRL-K, etc.
2686 * "c" must be printable (fit in one display cell)!
2687 */
2688 void
2689 putcmdline(c, shift)
2690 int c;
2691 int shift;
2692 {
2693 if (cmd_silent)
2694 return;
2695 msg_no_more = TRUE;
2696 msg_putchar(c);
2697 if (shift)
2698 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
2699 msg_no_more = FALSE;
2700 cursorcmd();
2701 }
2702
2703 /*
2704 * Undo a putcmdline(c, FALSE).
2705 */
2706 void
2707 unputcmdline()
2708 {
2709 if (cmd_silent)
2710 return;
2711 msg_no_more = TRUE;
2712 if (ccline.cmdlen == ccline.cmdpos)
2713 msg_putchar(' ');
2714 else
2715 draw_cmdline(ccline.cmdpos, 1);
2716 msg_no_more = FALSE;
2717 cursorcmd();
2718 }
2719
2720 /*
2721 * Put the given string, of the given length, onto the command line.
2722 * If len is -1, then STRLEN() is used to calculate the length.
2723 * If 'redraw' is TRUE then the new part of the command line, and the remaining
2724 * part will be redrawn, otherwise it will not. If this function is called
2725 * twice in a row, then 'redraw' should be FALSE and redrawcmd() should be
2726 * called afterwards.
2727 */
2728 int
2729 put_on_cmdline(str, len, redraw)
2730 char_u *str;
2731 int len;
2732 int redraw;
2733 {
2734 int retval;
2735 int i;
2736 int m;
2737 int c;
2738
2739 if (len < 0)
2740 len = (int)STRLEN(str);
2741
2742 /* Check if ccline.cmdbuff needs to be longer */
2743 if (ccline.cmdlen + len + 1 >= ccline.cmdbufflen)
2744 retval = realloc_cmdbuff(ccline.cmdlen + len);
2745 else
2746 retval = OK;
2747 if (retval == OK)
2748 {
2749 if (!ccline.overstrike)
2750 {
2751 mch_memmove(ccline.cmdbuff + ccline.cmdpos + len,
2752 ccline.cmdbuff + ccline.cmdpos,
2753 (size_t)(ccline.cmdlen - ccline.cmdpos));
2754 ccline.cmdlen += len;
2755 }
2756 else
2757 {
2758 #ifdef FEAT_MBYTE
2759 if (has_mbyte)
2760 {
2761 /* Count nr of characters in the new string. */
2762 m = 0;
2763 for (i = 0; i < len; i += (*mb_ptr2len)(str + i))
2764 ++m;
2765 /* Count nr of bytes in cmdline that are overwritten by these
2766 * characters. */
2767 for (i = ccline.cmdpos; i < ccline.cmdlen && m > 0;
2768 i += (*mb_ptr2len)(ccline.cmdbuff + i))
2769 --m;
2770 if (i < ccline.cmdlen)
2771 {
2772 mch_memmove(ccline.cmdbuff + ccline.cmdpos + len,
2773 ccline.cmdbuff + i, (size_t)(ccline.cmdlen - i));
2774 ccline.cmdlen += ccline.cmdpos + len - i;
2775 }
2776 else
2777 ccline.cmdlen = ccline.cmdpos + len;
2778 }
2779 else
2780 #endif
2781 if (ccline.cmdpos + len > ccline.cmdlen)
2782 ccline.cmdlen = ccline.cmdpos + len;
2783 }
2784 mch_memmove(ccline.cmdbuff + ccline.cmdpos, str, (size_t)len);
2785 ccline.cmdbuff[ccline.cmdlen] = NUL;
2786
2787 #ifdef FEAT_MBYTE
2788 if (enc_utf8)
2789 {
2790 /* When the inserted text starts with a composing character,
2791 * backup to the character before it. There could be two of them.
2792 */
2793 i = 0;
2794 c = utf_ptr2char(ccline.cmdbuff + ccline.cmdpos);
2795 while (ccline.cmdpos > 0 && utf_iscomposing(c))
2796 {
2797 i = (*mb_head_off)(ccline.cmdbuff,
2798 ccline.cmdbuff + ccline.cmdpos - 1) + 1;
2799 ccline.cmdpos -= i;
2800 len += i;
2801 c = utf_ptr2char(ccline.cmdbuff + ccline.cmdpos);
2802 }
2803 # ifdef FEAT_ARABIC
2804 if (i == 0 && ccline.cmdpos > 0 && arabic_maycombine(c))
2805 {
2806 /* Check the previous character for Arabic combining pair. */
2807 i = (*mb_head_off)(ccline.cmdbuff,
2808 ccline.cmdbuff + ccline.cmdpos - 1) + 1;
2809 if (arabic_combine(utf_ptr2char(ccline.cmdbuff
2810 + ccline.cmdpos - i), c))
2811 {
2812 ccline.cmdpos -= i;
2813 len += i;
2814 }
2815 else
2816 i = 0;
2817 }
2818 # endif
2819 if (i != 0)
2820 {
2821 /* Also backup the cursor position. */
2822 i = ptr2cells(ccline.cmdbuff + ccline.cmdpos);
2823 ccline.cmdspos -= i;
2824 msg_col -= i;
2825 if (msg_col < 0)
2826 {
2827 msg_col += Columns;
2828 --msg_row;
2829 }
2830 }
2831 }
2832 #endif
2833
2834 if (redraw && !cmd_silent)
2835 {
2836 msg_no_more = TRUE;
2837 i = cmdline_row;
2838 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
2839 /* Avoid clearing the rest of the line too often. */
2840 if (cmdline_row != i || ccline.overstrike)
2841 msg_clr_eos();
2842 msg_no_more = FALSE;
2843 }
2844 #ifdef FEAT_FKMAP
2845 /*
2846 * If we are in Farsi command mode, the character input must be in
2847 * Insert mode. So do not advance the cmdpos.
2848 */
2849 if (!cmd_fkmap)
2850 #endif
2851 {
2852 if (KeyTyped)
2853 {
2854 m = Columns * Rows;
2855 if (m < 0) /* overflow, Columns or Rows at weird value */
2856 m = MAXCOL;
2857 }
2858 else
2859 m = MAXCOL;
2860 for (i = 0; i < len; ++i)
2861 {
2862 c = cmdline_charsize(ccline.cmdpos);
2863 #ifdef FEAT_MBYTE
2864 /* count ">" for a double-wide char that doesn't fit. */
2865 if (has_mbyte)
2866 correct_cmdspos(ccline.cmdpos, c);
2867 #endif
2868 /* Stop cursor at the end of the screen, but do increment the
2869 * insert position, so that entering a very long command
2870 * works, even though you can't see it. */
2871 if (ccline.cmdspos + c < m)
2872 ccline.cmdspos += c;
2873 #ifdef FEAT_MBYTE
2874 if (has_mbyte)
2875 {
2876 c = (*mb_ptr2len)(ccline.cmdbuff + ccline.cmdpos) - 1;
2877 if (c > len - i - 1)
2878 c = len - i - 1;
2879 ccline.cmdpos += c;
2880 i += c;
2881 }
2882 #endif
2883 ++ccline.cmdpos;
2884 }
2885 }
2886 }
2887 if (redraw)
2888 msg_check();
2889 return retval;
2890 }
2891
2892 static struct cmdline_info prev_ccline;
2893 static int prev_ccline_used = FALSE;
2894
2895 /*
2896 * Save ccline, because obtaining the "=" register may execute "normal :cmd"
2897 * and overwrite it. But get_cmdline_str() may need it, thus make it
2898 * available globally in prev_ccline.
2899 */
2900 static void
2901 save_cmdline(ccp)
2902 struct cmdline_info *ccp;
2903 {
2904 if (!prev_ccline_used)
2905 {
2906 vim_memset(&prev_ccline, 0, sizeof(struct cmdline_info));
2907 prev_ccline_used = TRUE;
2908 }
2909 *ccp = prev_ccline;
2910 prev_ccline = ccline;
2911 ccline.cmdbuff = NULL;
2912 ccline.cmdprompt = NULL;
2913 ccline.xpc = NULL;
2914 }
2915
2916 /*
2917 * Restore ccline after it has been saved with save_cmdline().
2918 */
2919 static void
2920 restore_cmdline(ccp)
2921 struct cmdline_info *ccp;
2922 {
2923 ccline = prev_ccline;
2924 prev_ccline = *ccp;
2925 }
2926
2927 #if defined(FEAT_EVAL) || defined(PROTO)
2928 /*
2929 * Save the command line into allocated memory. Returns a pointer to be
2930 * passed to restore_cmdline_alloc() later.
2931 * Returns NULL when failed.
2932 */
2933 char_u *
2934 save_cmdline_alloc()
2935 {
2936 struct cmdline_info *p;
2937
2938 p = (struct cmdline_info *)alloc((unsigned)sizeof(struct cmdline_info));
2939 if (p != NULL)
2940 save_cmdline(p);
2941 return (char_u *)p;
2942 }
2943
2944 /*
2945 * Restore the command line from the return value of save_cmdline_alloc().
2946 */
2947 void
2948 restore_cmdline_alloc(p)
2949 char_u *p;
2950 {
2951 if (p != NULL)
2952 {
2953 restore_cmdline((struct cmdline_info *)p);
2954 vim_free(p);
2955 }
2956 }
2957 #endif
2958
2959 /*
2960 * paste a yank register into the command line.
2961 * used by CTRL-R command in command-line mode
2962 * insert_reg() can't be used here, because special characters from the
2963 * register contents will be interpreted as commands.
2964 *
2965 * return FAIL for failure, OK otherwise
2966 */
2967 static int
2968 cmdline_paste(regname, literally, remcr)
2969 int regname;
2970 int literally; /* Insert text literally instead of "as typed" */
2971 int remcr; /* remove trailing CR */
2972 {
2973 long i;
2974 char_u *arg;
2975 char_u *p;
2976 int allocated;
2977 struct cmdline_info save_ccline;
2978
2979 /* check for valid regname; also accept special characters for CTRL-R in
2980 * the command line */
2981 if (regname != Ctrl_F && regname != Ctrl_P && regname != Ctrl_W
2982 && regname != Ctrl_A && !valid_yank_reg(regname, FALSE))
2983 return FAIL;
2984
2985 /* A register containing CTRL-R can cause an endless loop. Allow using
2986 * CTRL-C to break the loop. */
2987 line_breakcheck();
2988 if (got_int)
2989 return FAIL;
2990
2991 #ifdef FEAT_CLIPBOARD
2992 regname = may_get_selection(regname);
2993 #endif
2994
2995 /* Need to save and restore ccline. And set "textlock" to avoid nasty
2996 * things like going to another buffer when evaluating an expression. */
2997 save_cmdline(&save_ccline);
2998 ++textlock;
2999 i = get_spec_reg(regname, &arg, &allocated, TRUE);
3000 --textlock;
3001 restore_cmdline(&save_ccline);
3002
3003 if (i)
3004 {
3005 /* Got the value of a special register in "arg". */
3006 if (arg == NULL)
3007 return FAIL;
3008
3009 /* When 'incsearch' is set and CTRL-R CTRL-W used: skip the duplicate
3010 * part of the word. */
3011 p = arg;
3012 if (p_is && regname == Ctrl_W)
3013 {
3014 char_u *w;
3015 int len;
3016
3017 /* Locate start of last word in the cmd buffer. */
3018 for (w = ccline.cmdbuff + ccline.cmdlen; w > ccline.cmdbuff; )
3019 {
3020 #ifdef FEAT_MBYTE
3021 if (has_mbyte)
3022 {
3023 len = (*mb_head_off)(ccline.cmdbuff, w - 1) + 1;
3024 if (!vim_iswordc(mb_ptr2char(w - len)))
3025 break;
3026 w -= len;
3027 }
3028 else
3029 #endif
3030 {
3031 if (!vim_iswordc(w[-1]))
3032 break;
3033 --w;
3034 }
3035 }
3036 len = (int)((ccline.cmdbuff + ccline.cmdlen) - w);
3037 if (p_ic ? STRNICMP(w, arg, len) == 0 : STRNCMP(w, arg, len) == 0)
3038 p += len;
3039 }
3040
3041 cmdline_paste_str(p, literally);
3042 if (allocated)
3043 vim_free(arg);
3044 return OK;
3045 }
3046
3047 return cmdline_paste_reg(regname, literally, remcr);
3048 }
3049
3050 /*
3051 * Put a string on the command line.
3052 * When "literally" is TRUE, insert literally.
3053 * When "literally" is FALSE, insert as typed, but don't leave the command
3054 * line.
3055 */
3056 void
3057 cmdline_paste_str(s, literally)
3058 char_u *s;
3059 int literally;
3060 {
3061 int c, cv;
3062
3063 if (literally)
3064 put_on_cmdline(s, -1, TRUE);
3065 else
3066 while (*s != NUL)
3067 {
3068 cv = *s;
3069 if (cv == Ctrl_V && s[1])
3070 ++s;
3071 #ifdef FEAT_MBYTE
3072 if (has_mbyte)
3073 c = mb_cptr2char_adv(&s);
3074 else
3075 #endif
3076 c = *s++;
3077 if (cv == Ctrl_V || c == ESC || c == Ctrl_C || c == CAR || c == NL
3078 #ifdef UNIX
3079 || c == intr_char
3080 #endif
3081 || (c == Ctrl_BSL && *s == Ctrl_N))
3082 stuffcharReadbuff(Ctrl_V);
3083 stuffcharReadbuff(c);
3084 }
3085 }
3086
3087 #ifdef FEAT_WILDMENU
3088 /*
3089 * Delete characters on the command line, from "from" to the current
3090 * position.
3091 */
3092 static void
3093 cmdline_del(from)
3094 int from;
3095 {
3096 mch_memmove(ccline.cmdbuff + from, ccline.cmdbuff + ccline.cmdpos,
3097 (size_t)(ccline.cmdlen - ccline.cmdpos + 1));
3098 ccline.cmdlen -= ccline.cmdpos - from;
3099 ccline.cmdpos = from;
3100 }
3101 #endif
3102
3103 /*
3104 * this function is called when the screen size changes and with incremental
3105 * search
3106 */
3107 void
3108 redrawcmdline()
3109 {
3110 if (cmd_silent)
3111 return;
3112 need_wait_return = FALSE;
3113 compute_cmdrow();
3114 redrawcmd();
3115 cursorcmd();
3116 }
3117
3118 static void
3119 redrawcmdprompt()
3120 {
3121 int i;
3122
3123 if (cmd_silent)
3124 return;
3125 if (ccline.cmdfirstc != NUL)
3126 msg_putchar(ccline.cmdfirstc);
3127 if (ccline.cmdprompt != NULL)
3128 {
3129 msg_puts_attr(ccline.cmdprompt, ccline.cmdattr);
3130 ccline.cmdindent = msg_col + (msg_row - cmdline_row) * Columns;
3131 /* do the reverse of set_cmdspos() */
3132 if (ccline.cmdfirstc != NUL)
3133 --ccline.cmdindent;
3134 }
3135 else
3136 for (i = ccline.cmdindent; i > 0; --i)
3137 msg_putchar(' ');
3138 }
3139
3140 /*
3141 * Redraw what is currently on the command line.
3142 */
3143 void
3144 redrawcmd()
3145 {
3146 if (cmd_silent)
3147 return;
3148
3149 /* when 'incsearch' is set there may be no command line while redrawing */
3150 if (ccline.cmdbuff == NULL)
3151 {
3152 windgoto(cmdline_row, 0);
3153 msg_clr_eos();
3154 return;
3155 }
3156
3157 msg_start();
3158 redrawcmdprompt();
3159
3160 /* Don't use more prompt, truncate the cmdline if it doesn't fit. */
3161 msg_no_more = TRUE;
3162 draw_cmdline(0, ccline.cmdlen);
3163 msg_clr_eos();
3164 msg_no_more = FALSE;
3165
3166 set_cmdspos_cursor();
3167
3168 /*
3169 * An emsg() before may have set msg_scroll. This is used in normal mode,
3170 * in cmdline mode we can reset them now.
3171 */
3172 msg_scroll = FALSE; /* next message overwrites cmdline */
3173
3174 /* Typing ':' at the more prompt may set skip_redraw. We don't want this
3175 * in cmdline mode */
3176 skip_redraw = FALSE;
3177 }
3178
3179 void
3180 compute_cmdrow()
3181 {
3182 if (exmode_active || msg_scrolled != 0)
3183 cmdline_row = Rows - 1;
3184 else
3185 cmdline_row = W_WINROW(lastwin) + lastwin->w_height
3186 + W_STATUS_HEIGHT(lastwin);
3187 }
3188
3189 static void
3190 cursorcmd()
3191 {
3192 if (cmd_silent)
3193 return;
3194
3195 #ifdef FEAT_RIGHTLEFT
3196 if (cmdmsg_rl)
3197 {
3198 msg_row = cmdline_row + (ccline.cmdspos / (int)(Columns - 1));
3199 msg_col = (int)Columns - (ccline.cmdspos % (int)(Columns - 1)) - 1;
3200 if (msg_row <= 0)
3201 msg_row = Rows - 1;
3202 }
3203 else
3204 #endif
3205 {
3206 msg_row = cmdline_row + (ccline.cmdspos / (int)Columns);
3207 msg_col = ccline.cmdspos % (int)Columns;
3208 if (msg_row >= Rows)
3209 msg_row = Rows - 1;
3210 }
3211
3212 windgoto(msg_row, msg_col);
3213 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
3214 redrawcmd_preedit();
3215 #endif
3216 #ifdef MCH_CURSOR_SHAPE
3217 mch_update_cursor();
3218 #endif
3219 }
3220
3221 void
3222 gotocmdline(clr)
3223 int clr;
3224 {
3225 msg_start();
3226 #ifdef FEAT_RIGHTLEFT
3227 if (cmdmsg_rl)
3228 msg_col = Columns - 1;
3229 else
3230 #endif
3231 msg_col = 0; /* always start in column 0 */
3232 if (clr) /* clear the bottom line(s) */
3233 msg_clr_eos(); /* will reset clear_cmdline */
3234 windgoto(cmdline_row, 0);
3235 }
3236
3237 /*
3238 * Check the word in front of the cursor for an abbreviation.
3239 * Called when the non-id character "c" has been entered.
3240 * When an abbreviation is recognized it is removed from the text with
3241 * backspaces and the replacement string is inserted, followed by "c".
3242 */
3243 static int
3244 ccheck_abbr(c)
3245 int c;
3246 {
3247 if (p_paste || no_abbr) /* no abbreviations or in paste mode */
3248 return FALSE;
3249
3250 return check_abbr(c, ccline.cmdbuff, ccline.cmdpos, 0);
3251 }
3252
3253 /*
3254 * Return FAIL if this is not an appropriate context in which to do
3255 * completion of anything, return OK if it is (even if there are no matches).
3256 * For the caller, this means that the character is just passed through like a
3257 * normal character (instead of being expanded). This allows :s/^I^D etc.
3258 */
3259 static int
3260 nextwild(xp, type, options)
3261 expand_T *xp;
3262 int type;
3263 int options; /* extra options for ExpandOne() */
3264 {
3265 int i, j;
3266 char_u *p1;
3267 char_u *p2;
3268 int difflen;
3269 int v;
3270
3271 if (xp->xp_numfiles == -1)
3272 {
3273 set_expand_context(xp);
3274 cmd_showtail = expand_showtail(xp);
3275 }
3276
3277 if (xp->xp_context == EXPAND_UNSUCCESSFUL)
3278 {
3279 beep_flush();
3280 return OK; /* Something illegal on command line */
3281 }
3282 if (xp->xp_context == EXPAND_NOTHING)
3283 {
3284 /* Caller can use the character as a normal char instead */
3285 return FAIL;
3286 }
3287
3288 MSG_PUTS("..."); /* show that we are busy */
3289 out_flush();
3290
3291 i = (int)(xp->xp_pattern - ccline.cmdbuff);
3292 xp->xp_pattern_len = ccline.cmdpos - i;
3293
3294 if (type == WILD_NEXT || type == WILD_PREV)
3295 {
3296 /*
3297 * Get next/previous match for a previous expanded pattern.
3298 */
3299 p2 = ExpandOne(xp, NULL, NULL, 0, type);
3300 }
3301 else
3302 {
3303 /*
3304 * Translate string into pattern and expand it.
3305 */
3306 if ((p1 = addstar(xp->xp_pattern, xp->xp_pattern_len,
3307 xp->xp_context)) == NULL)
3308 p2 = NULL;
3309 else
3310 {
3311 p2 = ExpandOne(xp, p1,
3312 vim_strnsave(&ccline.cmdbuff[i], xp->xp_pattern_len),
3313 WILD_HOME_REPLACE|WILD_ADD_SLASH|WILD_SILENT|WILD_ESCAPE
3314 |options, type);
3315 vim_free(p1);
3316 /* longest match: make sure it is not shorter, happens with :help */
3317 if (p2 != NULL && type == WILD_LONGEST)
3318 {
3319 for (j = 0; j < xp->xp_pattern_len; ++j)
3320 if (ccline.cmdbuff[i + j] == '*'
3321 || ccline.cmdbuff[i + j] == '?')
3322 break;
3323 if ((int)STRLEN(p2) < j)
3324 {
3325 vim_free(p2);
3326 p2 = NULL;
3327 }
3328 }
3329 }
3330 }
3331
3332 if (p2 != NULL && !got_int)
3333 {
3334 difflen = (int)STRLEN(p2) - xp->xp_pattern_len;
3335 if (ccline.cmdlen + difflen > ccline.cmdbufflen - 4)
3336 {
3337 v = realloc_cmdbuff(ccline.cmdlen + difflen);
3338 xp->xp_pattern = ccline.cmdbuff + i;
3339 }
3340 else
3341 v = OK;
3342 if (v == OK)
3343 {
3344 mch_memmove(&ccline.cmdbuff[ccline.cmdpos + difflen],
3345 &ccline.cmdbuff[ccline.cmdpos],
3346 (size_t)(ccline.cmdlen - ccline.cmdpos + 1));
3347 mch_memmove(&ccline.cmdbuff[i], p2, STRLEN(p2));
3348 ccline.cmdlen += difflen;
3349 ccline.cmdpos += difflen;
3350 }
3351 }
3352 vim_free(p2);
3353
3354 redrawcmd();
3355 cursorcmd();
3356
3357 /* When expanding a ":map" command and no matches are found, assume that
3358 * the key is supposed to be inserted literally */
3359 if (xp->xp_context == EXPAND_MAPPINGS && p2 == NULL)
3360 return FAIL;
3361
3362 if (xp->xp_numfiles <= 0 && p2 == NULL)
3363 beep_flush();
3364 else if (xp->xp_numfiles == 1)
3365 /* free expanded pattern */
3366 (void)ExpandOne(xp, NULL, NULL, 0, WILD_FREE);
3367
3368 return OK;
3369 }
3370
3371 /*
3372 * Do wildcard expansion on the string 'str'.
3373 * Chars that should not be expanded must be preceded with a backslash.
3374 * Return a pointer to allocated memory containing the new string.
3375 * Return NULL for failure.
3376 *
3377 * "orig" is the originally expanded string, copied to allocated memory. It
3378 * should either be kept in orig_save or freed. When "mode" is WILD_NEXT or
3379 * WILD_PREV "orig" should be NULL.
3380 *
3381 * Results are cached in xp->xp_files and xp->xp_numfiles, except when "mode"
3382 * is WILD_EXPAND_FREE or WILD_ALL.
3383 *
3384 * mode = WILD_FREE: just free previously expanded matches
3385 * mode = WILD_EXPAND_FREE: normal expansion, do not keep matches
3386 * mode = WILD_EXPAND_KEEP: normal expansion, keep matches
3387 * mode = WILD_NEXT: use next match in multiple match, wrap to first
3388 * mode = WILD_PREV: use previous match in multiple match, wrap to first
3389 * mode = WILD_ALL: return all matches concatenated
3390 * mode = WILD_LONGEST: return longest matched part
3391 *
3392 * options = WILD_LIST_NOTFOUND: list entries without a match
3393 * options = WILD_HOME_REPLACE: do home_replace() for buffer names
3394 * options = WILD_USE_NL: Use '\n' for WILD_ALL
3395 * options = WILD_NO_BEEP: Don't beep for multiple matches
3396 * options = WILD_ADD_SLASH: add a slash after directory names
3397 * options = WILD_KEEP_ALL: don't remove 'wildignore' entries
3398 * options = WILD_SILENT: don't print warning messages
3399 * options = WILD_ESCAPE: put backslash before special chars
3400 *
3401 * The variables xp->xp_context and xp->xp_backslash must have been set!
3402 */
3403 char_u *
3404 ExpandOne(xp, str, orig, options, mode)
3405 expand_T *xp;
3406 char_u *str;
3407 char_u *orig; /* allocated copy of original of expanded string */
3408 int options;
3409 int mode;
3410 {
3411 char_u *ss = NULL;
3412 static int findex;
3413 static char_u *orig_save = NULL; /* kept value of orig */
3414 int orig_saved = FALSE;
3415 int i;
3416 long_u len;
3417 int non_suf_match; /* number without matching suffix */
3418
3419 /*
3420 * first handle the case of using an old match
3421 */
3422 if (mode == WILD_NEXT || mode == WILD_PREV)
3423 {
3424 if (xp->xp_numfiles > 0)
3425 {
3426 if (mode == WILD_PREV)
3427 {
3428 if (findex == -1)
3429 findex = xp->xp_numfiles;
3430 --findex;
3431 }
3432 else /* mode == WILD_NEXT */
3433 ++findex;
3434
3435 /*
3436 * When wrapping around, return the original string, set findex to
3437 * -1.
3438 */
3439 if (findex < 0)
3440 {
3441 if (orig_save == NULL)
3442 findex = xp->xp_numfiles - 1;
3443 else
3444 findex = -1;
3445 }
3446 if (findex >= xp->xp_numfiles)
3447 {
3448 if (orig_save == NULL)
3449 findex = 0;
3450 else
3451 findex = -1;
3452 }
3453 #ifdef FEAT_WILDMENU
3454 if (p_wmnu)
3455 win_redr_status_matches(xp, xp->xp_numfiles, xp->xp_files,
3456 findex, cmd_showtail);
3457 #endif
3458 if (findex == -1)
3459 return vim_strsave(orig_save);
3460 return vim_strsave(xp->xp_files[findex]);
3461 }
3462 else
3463 return NULL;
3464 }
3465
3466 /* free old names */
3467 if (xp->xp_numfiles != -1 && mode != WILD_ALL && mode != WILD_LONGEST)
3468 {
3469 FreeWild(xp->xp_numfiles, xp->xp_files);
3470 xp->xp_numfiles = -1;
3471 vim_free(orig_save);
3472 orig_save = NULL;
3473 }
3474 findex = 0;
3475
3476 if (mode == WILD_FREE) /* only release file name */
3477 return NULL;
3478
3479 if (xp->xp_numfiles == -1)
3480 {
3481 vim_free(orig_save);
3482 orig_save = orig;
3483 orig_saved = TRUE;
3484
3485 /*
3486 * Do the expansion.
3487 */
3488 if (ExpandFromContext(xp, str, &xp->xp_numfiles, &xp->xp_files,
3489 options) == FAIL)
3490 {
3491 #ifdef FNAME_ILLEGAL
3492 /* Illegal file name has been silently skipped. But when there
3493 * are wildcards, the real problem is that there was no match,
3494 * causing the pattern to be added, which has illegal characters.
3495 */
3496 if (!(options & WILD_SILENT) && (options & WILD_LIST_NOTFOUND))
3497 EMSG2(_(e_nomatch2), str);
3498 #endif
3499 }
3500 else if (xp->xp_numfiles == 0)
3501 {
3502 if (!(options & WILD_SILENT))
3503 EMSG2(_(e_nomatch2), str);
3504 }
3505 else
3506 {
3507 /* Escape the matches for use on the command line. */
3508 ExpandEscape(xp, str, xp->xp_numfiles, xp->xp_files, options);
3509
3510 /*
3511 * Check for matching suffixes in file names.
3512 */
3513 if (mode != WILD_ALL && mode != WILD_LONGEST)
3514 {
3515 if (xp->xp_numfiles)
3516 non_suf_match = xp->xp_numfiles;
3517 else
3518 non_suf_match = 1;
3519 if ((xp->xp_context == EXPAND_FILES
3520 || xp->xp_context == EXPAND_DIRECTORIES)
3521 && xp->xp_numfiles > 1)
3522 {
3523 /*
3524 * More than one match; check suffix.
3525 * The files will have been sorted on matching suffix in
3526 * expand_wildcards, only need to check the first two.
3527 */
3528 non_suf_match = 0;
3529 for (i = 0; i < 2; ++i)
3530 if (match_suffix(xp->xp_files[i]))
3531 ++non_suf_match;
3532 }
3533 if (non_suf_match != 1)
3534 {
3535 /* Can we ever get here unless it's while expanding
3536 * interactively? If not, we can get rid of this all
3537 * together. Don't really want to wait for this message
3538 * (and possibly have to hit return to continue!).
3539 */
3540 if (!(options & WILD_SILENT))
3541 EMSG(_(e_toomany));
3542 else if (!(options & WILD_NO_BEEP))
3543 beep_flush();
3544 }
3545 if (!(non_suf_match != 1 && mode == WILD_EXPAND_FREE))
3546 ss = vim_strsave(xp->xp_files[0]);
3547 }
3548 }
3549 }
3550
3551 /* Find longest common part */
3552 if (mode == WILD_LONGEST && xp->xp_numfiles > 0)
3553 {
3554 for (len = 0; xp->xp_files[0][len]; ++len)
3555 {
3556 for (i = 0; i < xp->xp_numfiles; ++i)
3557 {
3558 #ifdef CASE_INSENSITIVE_FILENAME
3559 if (xp->xp_context == EXPAND_DIRECTORIES
3560 || xp->xp_context == EXPAND_FILES
3561 || xp->xp_context == EXPAND_SHELLCMD
3562 || xp->xp_context == EXPAND_BUFFERS)
3563 {
3564 if (TOLOWER_LOC(xp->xp_files[i][len]) !=
3565 TOLOWER_LOC(xp->xp_files[0][len]))
3566 break;
3567 }
3568 else
3569 #endif
3570 if (xp->xp_files[i][len] != xp->xp_files[0][len])
3571 break;
3572 }
3573 if (i < xp->xp_numfiles)
3574 {
3575 if (!(options & WILD_NO_BEEP))
3576 vim_beep();
3577 break;
3578 }
3579 }
3580 ss = alloc((unsigned)len + 1);
3581 if (ss)
3582 vim_strncpy(ss, xp->xp_files[0], (size_t)len);
3583 findex = -1; /* next p_wc gets first one */
3584 }
3585
3586 /* Concatenate all matching names */
3587 if (mode == WILD_ALL && xp->xp_numfiles > 0)
3588 {
3589 len = 0;
3590 for (i = 0; i < xp->xp_numfiles; ++i)
3591 len += (long_u)STRLEN(xp->xp_files[i]) + 1;
3592 ss = lalloc(len, TRUE);
3593 if (ss != NULL)
3594 {
3595 *ss = NUL;
3596 for (i = 0; i < xp->xp_numfiles; ++i)
3597 {
3598 STRCAT(ss, xp->xp_files[i]);
3599 if (i != xp->xp_numfiles - 1)
3600 STRCAT(ss, (options & WILD_USE_NL) ? "\n" : " ");
3601 }
3602 }
3603 }
3604
3605 if (mode == WILD_EXPAND_FREE || mode == WILD_ALL)
3606 ExpandCleanup(xp);
3607
3608 /* Free "orig" if it wasn't stored in "orig_save". */
3609 if (!orig_saved)
3610 vim_free(orig);
3611
3612 return ss;
3613 }
3614
3615 /*
3616 * Prepare an expand structure for use.
3617 */
3618 void
3619 ExpandInit(xp)
3620 expand_T *xp;
3621 {
3622 xp->xp_pattern = NULL;
3623 xp->xp_pattern_len = 0;
3624 xp->xp_backslash = XP_BS_NONE;
3625 #ifndef BACKSLASH_IN_FILENAME
3626 xp->xp_shell = FALSE;
3627 #endif
3628 xp->xp_numfiles = -1;
3629 xp->xp_files = NULL;
3630 #if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL) && defined(FEAT_CMDL_COMPL)
3631 xp->xp_arg = NULL;
3632 #endif
3633 }
3634
3635 /*
3636 * Cleanup an expand structure after use.
3637 */
3638 void
3639 ExpandCleanup(xp)
3640 expand_T *xp;
3641 {
3642 if (xp->xp_numfiles >= 0)
3643 {
3644 FreeWild(xp->xp_numfiles, xp->xp_files);
3645 xp->xp_numfiles = -1;
3646 }
3647 }
3648
3649 void
3650 ExpandEscape(xp, str, numfiles, files, options)
3651 expand_T *xp;
3652 char_u *str;
3653 int numfiles;
3654 char_u **files;
3655 int options;
3656 {
3657 int i;
3658 char_u *p;
3659
3660 /*
3661 * May change home directory back to "~"
3662 */
3663 if (options & WILD_HOME_REPLACE)
3664 tilde_replace(str, numfiles, files);
3665
3666 if (options & WILD_ESCAPE)
3667 {
3668 if (xp->xp_context == EXPAND_FILES
3669 || xp->xp_context == EXPAND_SHELLCMD
3670 || xp->xp_context == EXPAND_BUFFERS
3671 || xp->xp_context == EXPAND_DIRECTORIES)
3672 {
3673 /*
3674 * Insert a backslash into a file name before a space, \, %, #
3675 * and wildmatch characters, except '~'.
3676 */
3677 for (i = 0; i < numfiles; ++i)
3678 {
3679 /* for ":set path=" we need to escape spaces twice */
3680 if (xp->xp_backslash == XP_BS_THREE)
3681 {
3682 p = vim_strsave_escaped(files[i], (char_u *)" ");
3683 if (p != NULL)
3684 {
3685 vim_free(files[i]);
3686 files[i] = p;
3687 #if defined(BACKSLASH_IN_FILENAME)
3688 p = vim_strsave_escaped(files[i], (char_u *)" ");
3689 if (p != NULL)
3690 {
3691 vim_free(files[i]);
3692 files[i] = p;
3693 }
3694 #endif
3695 }
3696 }
3697 #ifdef BACKSLASH_IN_FILENAME
3698 p = vim_strsave_fnameescape(files[i], FALSE);
3699 #else
3700 p = vim_strsave_fnameescape(files[i], xp->xp_shell);
3701 #endif
3702 if (p != NULL)
3703 {
3704 vim_free(files[i]);
3705 files[i] = p;
3706 }
3707
3708 /* If 'str' starts with "\~", replace "~" at start of
3709 * files[i] with "\~". */
3710 if (str[0] == '\\' && str[1] == '~' && files[i][0] == '~')
3711 escape_fname(&files[i]);
3712 }
3713 xp->xp_backslash = XP_BS_NONE;
3714
3715 /* If the first file starts with a '+' escape it. Otherwise it
3716 * could be seen as "+cmd". */
3717 if (*files[0] == '+')
3718 escape_fname(&files[0]);
3719 }
3720 else if (xp->xp_context == EXPAND_TAGS)
3721 {
3722 /*
3723 * Insert a backslash before characters in a tag name that
3724 * would terminate the ":tag" command.
3725 */
3726 for (i = 0; i < numfiles; ++i)
3727 {
3728 p = vim_strsave_escaped(files[i], (char_u *)"\\|\"");
3729 if (p != NULL)
3730 {
3731 vim_free(files[i]);
3732 files[i] = p;
3733 }
3734 }
3735 }
3736 }
3737 }
3738
3739 /*
3740 * Escape special characters in "fname" for when used as a file name argument
3741 * after a Vim command, or, when "shell" is non-zero, a shell command.
3742 * Returns the result in allocated memory.
3743 */
3744 char_u *
3745 vim_strsave_fnameescape(fname, shell)
3746 char_u *fname;
3747 int shell;
3748 {
3749 char_u *p;
3750 #ifdef BACKSLASH_IN_FILENAME
3751 char_u buf[20];
3752 int j = 0;
3753
3754 /* Don't escape '[' and '{' if they are in 'isfname'. */
3755 for (p = PATH_ESC_CHARS; *p != NUL; ++p)
3756 if ((*p != '[' && *p != '{') || !vim_isfilec(*p))
3757 buf[j++] = *p;
3758 buf[j] = NUL;
3759 p = vim_strsave_escaped(fname, buf);
3760 #else
3761 p = vim_strsave_escaped(fname, shell ? SHELL_ESC_CHARS : PATH_ESC_CHARS);
3762 if (shell && csh_like_shell() && p != NULL)
3763 {
3764 char_u *s;
3765
3766 /* For csh and similar shells need to put two backslashes before '!'.
3767 * One is taken by Vim, one by the shell. */
3768 s = vim_strsave_escaped(p, (char_u *)"!");
3769 vim_free(p);
3770 p = s;
3771 }
3772 #endif
3773
3774 /* '>' and '+' are special at the start of some commands, e.g. ":edit" and
3775 * ":write". "cd -" has a special meaning. */
3776 if (*p == '>' || *p == '+' || (*p == '-' && p[1] == NUL))
3777 escape_fname(&p);
3778
3779 return p;
3780 }
3781
3782 /*
3783 * Put a backslash before the file name in "pp", which is in allocated memory.
3784 */
3785 static void
3786 escape_fname(pp)
3787 char_u **pp;
3788 {
3789 char_u *p;
3790
3791 p = alloc((unsigned)(STRLEN(*pp) + 2));
3792 if (p != NULL)
3793 {
3794 p[0] = '\\';
3795 STRCPY(p + 1, *pp);
3796 vim_free(*pp);
3797 *pp = p;
3798 }
3799 }
3800
3801 /*
3802 * For each file name in files[num_files]:
3803 * If 'orig_pat' starts with "~/", replace the home directory with "~".
3804 */
3805 void
3806 tilde_replace(orig_pat, num_files, files)
3807 char_u *orig_pat;
3808 int num_files;
3809 char_u **files;
3810 {
3811 int i;
3812 char_u *p;
3813
3814 if (orig_pat[0] == '~' && vim_ispathsep(orig_pat[1]))
3815 {
3816 for (i = 0; i < num_files; ++i)
3817 {
3818 p = home_replace_save(NULL, files[i]);
3819 if (p != NULL)
3820 {
3821 vim_free(files[i]);
3822 files[i] = p;
3823 }
3824 }
3825 }
3826 }
3827
3828 /*
3829 * Show all matches for completion on the command line.
3830 * Returns EXPAND_NOTHING when the character that triggered expansion should
3831 * be inserted like a normal character.
3832 */
3833 static int
3834 showmatches(xp, wildmenu)
3835 expand_T *xp;
3836 int wildmenu UNUSED;
3837 {
3838 #define L_SHOWFILE(m) (showtail ? sm_gettail(files_found[m]) : files_found[m])
3839 int num_files;
3840 char_u **files_found;
3841 int i, j, k;
3842 int maxlen;
3843 int lines;
3844 int columns;
3845 char_u *p;
3846 int lastlen;
3847 int attr;
3848 int showtail;
3849
3850 if (xp->xp_numfiles == -1)
3851 {
3852 set_expand_context(xp);
3853 i = expand_cmdline(xp, ccline.cmdbuff, ccline.cmdpos,
3854 &num_files, &files_found);
3855 showtail = expand_showtail(xp);
3856 if (i != EXPAND_OK)
3857 return i;
3858
3859 }
3860 else
3861 {
3862 num_files = xp->xp_numfiles;
3863 files_found = xp->xp_files;
3864 showtail = cmd_showtail;
3865 }
3866
3867 #ifdef FEAT_WILDMENU
3868 if (!wildmenu)
3869 {
3870 #endif
3871 msg_didany = FALSE; /* lines_left will be set */
3872 msg_start(); /* prepare for paging */
3873 msg_putchar('\n');
3874 out_flush();
3875 cmdline_row = msg_row;
3876 msg_didany = FALSE; /* lines_left will be set again */
3877 msg_start(); /* prepare for paging */
3878 #ifdef FEAT_WILDMENU
3879 }
3880 #endif
3881
3882 if (got_int)
3883 got_int = FALSE; /* only int. the completion, not the cmd line */
3884 #ifdef FEAT_WILDMENU
3885 else if (wildmenu)
3886 win_redr_status_matches(xp, num_files, files_found, 0, showtail);
3887 #endif
3888 else
3889 {
3890 /* find the length of the longest file name */
3891 maxlen = 0;
3892 for (i = 0; i < num_files; ++i)
3893 {
3894 if (!showtail && (xp->xp_context == EXPAND_FILES
3895 || xp->xp_context == EXPAND_SHELLCMD
3896 || xp->xp_context == EXPAND_BUFFERS))
3897 {
3898 home_replace(NULL, files_found[i], NameBuff, MAXPATHL, TRUE);
3899 j = vim_strsize(NameBuff);
3900 }
3901 else
3902 j = vim_strsize(L_SHOWFILE(i));
3903 if (j > maxlen)
3904 maxlen = j;
3905 }
3906
3907 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3908 lines = num_files;
3909 else
3910 {
3911 /* compute the number of columns and lines for the listing */
3912 maxlen += 2; /* two spaces between file names */
3913 columns = ((int)Columns + 2) / maxlen;
3914 if (columns < 1)
3915 columns = 1;
3916 lines = (num_files + columns - 1) / columns;
3917 }
3918
3919 attr = hl_attr(HLF_D); /* find out highlighting for directories */
3920
3921 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3922 {
3923 MSG_PUTS_ATTR(_("tagname"), hl_attr(HLF_T));
3924 msg_clr_eos();
3925 msg_advance(maxlen - 3);
3926 MSG_PUTS_ATTR(_(" kind file\n"), hl_attr(HLF_T));
3927 }
3928
3929 /* list the files line by line */
3930 for (i = 0; i < lines; ++i)
3931 {
3932 lastlen = 999;
3933 for (k = i; k < num_files; k += lines)
3934 {
3935 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3936 {
3937 msg_outtrans_attr(files_found[k], hl_attr(HLF_D));
3938 p = files_found[k] + STRLEN(files_found[k]) + 1;
3939 msg_advance(maxlen + 1);
3940 msg_puts(p);
3941 msg_advance(maxlen + 3);
3942 msg_puts_long_attr(p + 2, hl_attr(HLF_D));
3943 break;
3944 }
3945 for (j = maxlen - lastlen; --j >= 0; )
3946 msg_putchar(' ');
3947 if (xp->xp_context == EXPAND_FILES
3948 || xp->xp_context == EXPAND_SHELLCMD
3949 || xp->xp_context == EXPAND_BUFFERS)
3950 {
3951 /* highlight directories */
3952 j = (mch_isdir(files_found[k]));
3953 if (showtail)
3954 p = L_SHOWFILE(k);
3955 else
3956 {
3957 home_replace(NULL, files_found[k], NameBuff, MAXPATHL,
3958 TRUE);
3959 p = NameBuff;
3960 }
3961 }
3962 else
3963 {
3964 j = FALSE;
3965 p = L_SHOWFILE(k);
3966 }
3967 lastlen = msg_outtrans_attr(p, j ? attr : 0);
3968 }
3969 if (msg_col > 0) /* when not wrapped around */
3970 {
3971 msg_clr_eos();
3972 msg_putchar('\n');
3973 }
3974 out_flush(); /* show one line at a time */
3975 if (got_int)
3976 {
3977 got_int = FALSE;
3978 break;
3979 }
3980 }
3981
3982 /*
3983 * we redraw the command below the lines that we have just listed
3984 * This is a bit tricky, but it saves a lot of screen updating.
3985 */
3986 cmdline_row = msg_row; /* will put it back later */
3987 }
3988
3989 if (xp->xp_numfiles == -1)
3990 FreeWild(num_files, files_found);
3991
3992 return EXPAND_OK;
3993 }
3994
3995 /*
3996 * Private gettail for showmatches() (and win_redr_status_matches()):
3997 * Find tail of file name path, but ignore trailing "/".
3998 */
3999 char_u *
4000 sm_gettail(s)
4001 char_u *s;
4002 {
4003 char_u *p;
4004 char_u *t = s;
4005 int had_sep = FALSE;
4006
4007 for (p = s; *p != NUL; )
4008 {
4009 if (vim_ispathsep(*p)
4010 #ifdef BACKSLASH_IN_FILENAME
4011 && !rem_backslash(p)
4012 #endif
4013 )
4014 had_sep = TRUE;
4015 else if (had_sep)
4016 {
4017 t = p;
4018 had_sep = FALSE;
4019 }
4020 mb_ptr_adv(p);
4021 }
4022 return t;
4023 }
4024
4025 /*
4026 * Return TRUE if we only need to show the tail of completion matches.
4027 * When not completing file names or there is a wildcard in the path FALSE is
4028 * returned.
4029 */
4030 static int
4031 expand_showtail(xp)
4032 expand_T *xp;
4033 {
4034 char_u *s;
4035 char_u *end;
4036
4037 /* When not completing file names a "/" may mean something different. */
4038 if (xp->xp_context != EXPAND_FILES
4039 && xp->xp_context != EXPAND_SHELLCMD
4040 && xp->xp_context != EXPAND_DIRECTORIES)
4041 return FALSE;
4042
4043 end = gettail(xp->xp_pattern);
4044 if (end == xp->xp_pattern) /* there is no path separator */
4045 return FALSE;
4046
4047 for (s = xp->xp_pattern; s < end; s++)
4048 {
4049 /* Skip escaped wildcards. Only when the backslash is not a path
4050 * separator, on DOS the '*' "path\*\file" must not be skipped. */
4051 if (rem_backslash(s))
4052 ++s;
4053 else if (vim_strchr((char_u *)"*?[", *s) != NULL)
4054 return FALSE;
4055 }
4056 return TRUE;
4057 }
4058
4059 /*
4060 * Prepare a string for expansion.
4061 * When expanding file names: The string will be used with expand_wildcards().
4062 * Copy the file name into allocated memory and add a '*' at the end.
4063 * When expanding other names: The string will be used with regcomp(). Copy
4064 * the name into allocated memory and prepend "^".
4065 */
4066 char_u *
4067 addstar(fname, len, context)
4068 char_u *fname;
4069 int len;
4070 int context; /* EXPAND_FILES etc. */
4071 {
4072 char_u *retval;
4073 int i, j;
4074 int new_len;
4075 char_u *tail;
4076
4077 if (context != EXPAND_FILES
4078 && context != EXPAND_SHELLCMD
4079 && context != EXPAND_DIRECTORIES)
4080 {
4081 /*
4082 * Matching will be done internally (on something other than files).
4083 * So we convert the file-matching-type wildcards into our kind for
4084 * use with vim_regcomp(). First work out how long it will be:
4085 */
4086
4087 /* For help tags the translation is done in find_help_tags().
4088 * For a tag pattern starting with "/" no translation is needed. */
4089 if (context == EXPAND_HELP
4090 || context == EXPAND_COLORS
4091 || context == EXPAND_COMPILER
4092 || (context == EXPAND_TAGS && fname[0] == '/'))
4093 retval = vim_strnsave(fname, len);
4094 else
4095 {
4096 new_len = len + 2; /* +2 for '^' at start, NUL at end */
4097 for (i = 0; i < len; i++)
4098 {
4099 if (fname[i] == '*' || fname[i] == '~')
4100 new_len++; /* '*' needs to be replaced by ".*"
4101 '~' needs to be replaced by "\~" */
4102
4103 /* Buffer names are like file names. "." should be literal */
4104 if (context == EXPAND_BUFFERS && fname[i] == '.')
4105 new_len++; /* "." becomes "\." */
4106
4107 /* Custom expansion takes care of special things, match
4108 * backslashes literally (perhaps also for other types?) */
4109 if ((context == EXPAND_USER_DEFINED
4110 || context == EXPAND_USER_LIST) && fname[i] == '\\')
4111 new_len++; /* '\' becomes "\\" */
4112 }
4113 retval = alloc(new_len);
4114 if (retval != NULL)
4115 {
4116 retval[0] = '^';
4117 j = 1;
4118 for (i = 0; i < len; i++, j++)
4119 {
4120 /* Skip backslash. But why? At least keep it for custom
4121 * expansion. */
4122 if (context != EXPAND_USER_DEFINED
4123 && context != EXPAND_USER_LIST
4124 && fname[i] == '\\'
4125 && ++i == len)
4126 break;
4127
4128 switch (fname[i])
4129 {
4130 case '*': retval[j++] = '.';
4131 break;
4132 case '~': retval[j++] = '\\';
4133 break;
4134 case '?': retval[j] = '.';
4135 continue;
4136 case '.': if (context == EXPAND_BUFFERS)
4137 retval[j++] = '\\';
4138 break;
4139 case '\\': if (context == EXPAND_USER_DEFINED
4140 || context == EXPAND_USER_LIST)
4141 retval[j++] = '\\';
4142 break;
4143 }
4144 retval[j] = fname[i];
4145 }
4146 retval[j] = NUL;
4147 }
4148 }
4149 }
4150 else
4151 {
4152 retval = alloc(len + 4);
4153 if (retval != NULL)
4154 {
4155 vim_strncpy(retval, fname, len);
4156
4157 /*
4158 * Don't add a star to *, ~, ~user, $var or `cmd`.
4159 * * would become **, which walks the whole tree.
4160 * ~ would be at the start of the file name, but not the tail.
4161 * $ could be anywhere in the tail.
4162 * ` could be anywhere in the file name.
4163 * When the name ends in '$' don't add a star, remove the '$'.
4164 */
4165 tail = gettail(retval);
4166 if ((*retval != '~' || tail != retval)
4167 && (len == 0 || retval[len - 1] != '*')
4168 && vim_strchr(tail, '$') == NULL
4169 && vim_strchr(retval, '`') == NULL)
4170 retval[len++] = '*';
4171 else if (len > 0 && retval[len - 1] == '$')
4172 --len;
4173 retval[len] = NUL;
4174 }
4175 }
4176 return retval;
4177 }
4178
4179 /*
4180 * Must parse the command line so far to work out what context we are in.
4181 * Completion can then be done based on that context.
4182 * This routine sets the variables:
4183 * xp->xp_pattern The start of the pattern to be expanded within
4184 * the command line (ends at the cursor).
4185 * xp->xp_context The type of thing to expand. Will be one of:
4186 *
4187 * EXPAND_UNSUCCESSFUL Used sometimes when there is something illegal on
4188 * the command line, like an unknown command. Caller
4189 * should beep.
4190 * EXPAND_NOTHING Unrecognised context for completion, use char like
4191 * a normal char, rather than for completion. eg
4192 * :s/^I/
4193 * EXPAND_COMMANDS Cursor is still touching the command, so complete
4194 * it.
4195 * EXPAND_BUFFERS Complete file names for :buf and :sbuf commands.
4196 * EXPAND_FILES After command with XFILE set, or after setting
4197 * with P_EXPAND set. eg :e ^I, :w>>^I
4198 * EXPAND_DIRECTORIES In some cases this is used instead of the latter
4199 * when we know only directories are of interest. eg
4200 * :set dir=^I
4201 * EXPAND_SHELLCMD After ":!cmd", ":r !cmd" or ":w !cmd".
4202 * EXPAND_SETTINGS Complete variable names. eg :set d^I
4203 * EXPAND_BOOL_SETTINGS Complete boolean variables only, eg :set no^I
4204 * EXPAND_TAGS Complete tags from the files in p_tags. eg :ta a^I
4205 * EXPAND_TAGS_LISTFILES As above, but list filenames on ^D, after :tselect
4206 * EXPAND_HELP Complete tags from the file 'helpfile'/tags
4207 * EXPAND_EVENTS Complete event names
4208 * EXPAND_SYNTAX Complete :syntax command arguments
4209 * EXPAND_HIGHLIGHT Complete highlight (syntax) group names
4210 * EXPAND_AUGROUP Complete autocommand group names
4211 * EXPAND_USER_VARS Complete user defined variable names, eg :unlet a^I
4212 * EXPAND_MAPPINGS Complete mapping and abbreviation names,
4213 * eg :unmap a^I , :cunab x^I
4214 * EXPAND_FUNCTIONS Complete internal or user defined function names,
4215 * eg :call sub^I
4216 * EXPAND_USER_FUNC Complete user defined function names, eg :delf F^I
4217 * EXPAND_EXPRESSION Complete internal or user defined function/variable
4218 * names in expressions, eg :while s^I
4219 * EXPAND_ENV_VARS Complete environment variable names
4220 */
4221 static void
4222 set_expand_context(xp)
4223 expand_T *xp;
4224 {
4225 /* only expansion for ':', '>' and '=' command-lines */
4226 if (ccline.cmdfirstc != ':'
4227 #ifdef FEAT_EVAL
4228 && ccline.cmdfirstc != '>' && ccline.cmdfirstc != '='
4229 && !ccline.input_fn
4230 #endif
4231 )
4232 {
4233 xp->xp_context = EXPAND_NOTHING;
4234 return;
4235 }
4236 set_cmd_context(xp, ccline.cmdbuff, ccline.cmdlen, ccline.cmdpos);
4237 }
4238
4239 void
4240 set_cmd_context(xp, str, len, col)
4241 expand_T *xp;
4242 char_u *str; /* start of command line */
4243 int len; /* length of command line (excl. NUL) */
4244 int col; /* position of cursor */
4245 {
4246 int old_char = NUL;
4247 char_u *nextcomm;
4248
4249 /*
4250 * Avoid a UMR warning from Purify, only save the character if it has been
4251 * written before.
4252 */
4253 if (col < len)
4254 old_char = str[col];
4255 str[col] = NUL;
4256 nextcomm = str;
4257
4258 #ifdef FEAT_EVAL
4259 if (ccline.cmdfirstc == '=')
4260 {
4261 # ifdef FEAT_CMDL_COMPL
4262 /* pass CMD_SIZE because there is no real command */
4263 set_context_for_expression(xp, str, CMD_SIZE);
4264 # endif
4265 }
4266 else if (ccline.input_fn)
4267 {
4268 xp->xp_context = ccline.xp_context;
4269 xp->xp_pattern = ccline.cmdbuff;
4270 # if defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)
4271 xp->xp_arg = ccline.xp_arg;
4272 # endif
4273 }
4274 else
4275 #endif
4276 while (nextcomm != NULL)
4277 nextcomm = set_one_cmd_context(xp, nextcomm);
4278
4279 str[col] = old_char;
4280 }
4281
4282 /*
4283 * Expand the command line "str" from context "xp".
4284 * "xp" must have been set by set_cmd_context().
4285 * xp->xp_pattern points into "str", to where the text that is to be expanded
4286 * starts.
4287 * Returns EXPAND_UNSUCCESSFUL when there is something illegal before the
4288 * cursor.
4289 * Returns EXPAND_NOTHING when there is nothing to expand, might insert the
4290 * key that triggered expansion literally.
4291 * Returns EXPAND_OK otherwise.
4292 */
4293 int
4294 expand_cmdline(xp, str, col, matchcount, matches)
4295 expand_T *xp;
4296 char_u *str; /* start of command line */
4297 int col; /* position of cursor */
4298 int *matchcount; /* return: nr of matches */
4299 char_u ***matches; /* return: array of pointers to matches */
4300 {
4301 char_u *file_str = NULL;
4302
4303 if (xp->xp_context == EXPAND_UNSUCCESSFUL)
4304 {
4305 beep_flush();
4306 return EXPAND_UNSUCCESSFUL; /* Something illegal on command line */
4307 }
4308 if (xp->xp_context == EXPAND_NOTHING)
4309 {
4310 /* Caller can use the character as a normal char instead */
4311 return EXPAND_NOTHING;
4312 }
4313
4314 /* add star to file name, or convert to regexp if not exp. files. */
4315 xp->xp_pattern_len = (int)(str + col - xp->xp_pattern);
4316 file_str = addstar(xp->xp_pattern, xp->xp_pattern_len, xp->xp_context);
4317 if (file_str == NULL)
4318 return EXPAND_UNSUCCESSFUL;
4319
4320 /* find all files that match the description */
4321 if (ExpandFromContext(xp, file_str, matchcount, matches,
4322 WILD_ADD_SLASH|WILD_SILENT) == FAIL)
4323 {
4324 *matchcount = 0;
4325 *matches = NULL;
4326 }
4327 vim_free(file_str);
4328
4329 return EXPAND_OK;
4330 }
4331
4332 #ifdef FEAT_MULTI_LANG
4333 /*
4334 * Cleanup matches for help tags: remove "@en" if "en" is the only language.
4335 */
4336 static void cleanup_help_tags __ARGS((int num_file, char_u **file));
4337
4338 static void
4339 cleanup_help_tags(num_file, file)
4340 int num_file;
4341 char_u **file;
4342 {
4343 int i, j;
4344 int len;
4345
4346 for (i = 0; i < num_file; ++i)
4347 {
4348 len = (int)STRLEN(file[i]) - 3;
4349 if (len > 0 && STRCMP(file[i] + len, "@en") == 0)
4350 {
4351 /* Sorting on priority means the same item in another language may
4352 * be anywhere. Search all items for a match up to the "@en". */
4353 for (j = 0; j < num_file; ++j)
4354 if (j != i
4355 && (int)STRLEN(file[j]) == len + 3
4356 && STRNCMP(file[i], file[j], len + 1) == 0)
4357 break;
4358 if (j == num_file)
4359 file[i][len] = NUL;
4360 }
4361 }
4362 }
4363 #endif
4364
4365 /*
4366 * Do the expansion based on xp->xp_context and "pat".
4367 */
4368 static int
4369 ExpandFromContext(xp, pat, num_file, file, options)
4370 expand_T *xp;
4371 char_u *pat;
4372 int *num_file;
4373 char_u ***file;
4374 int options;
4375 {
4376 #ifdef FEAT_CMDL_COMPL
4377 regmatch_T regmatch;
4378 #endif
4379 int ret;
4380 int flags;
4381
4382 flags = EW_DIR; /* include directories */
4383 if (options & WILD_LIST_NOTFOUND)
4384 flags |= EW_NOTFOUND;
4385 if (options & WILD_ADD_SLASH)
4386 flags |= EW_ADDSLASH;
4387 if (options & WILD_KEEP_ALL)
4388 flags |= EW_KEEPALL;
4389 if (options & WILD_SILENT)
4390 flags |= EW_SILENT;
4391
4392 if (xp->xp_context == EXPAND_FILES || xp->xp_context == EXPAND_DIRECTORIES)
4393 {
4394 /*
4395 * Expand file or directory names.
4396 */
4397 int free_pat = FALSE;
4398 int i;
4399
4400 /* for ":set path=" and ":set tags=" halve backslashes for escaped
4401 * space */
4402 if (xp->xp_backslash != XP_BS_NONE)
4403 {
4404 free_pat = TRUE;
4405 pat = vim_strsave(pat);
4406 for (i = 0; pat[i]; ++i)
4407 if (pat[i] == '\\')
4408 {
4409 if (xp->xp_backslash == XP_BS_THREE
4410 && pat[i + 1] == '\\'
4411 && pat[i + 2] == '\\'
4412 && pat[i + 3] == ' ')
4413 STRMOVE(pat + i, pat + i + 3);
4414 if (xp->xp_backslash == XP_BS_ONE
4415 && pat[i + 1] == ' ')
4416 STRMOVE(pat + i, pat + i + 1);
4417 }
4418 }
4419
4420 if (xp->xp_context == EXPAND_FILES)
4421 flags |= EW_FILE;
4422 else
4423 flags = (flags | EW_DIR) & ~EW_FILE;
4424 /* Expand wildcards, supporting %:h and the like. */
4425 ret = expand_wildcards_eval(&pat, num_file, file, flags);
4426 if (free_pat)
4427 vim_free(pat);
4428 return ret;
4429 }
4430
4431 *file = (char_u **)"";
4432 *num_file = 0;
4433 if (xp->xp_context == EXPAND_HELP)
4434 {
4435 /* With an empty argument we would get all the help tags, which is
4436 * very slow. Get matches for "help" instead. */
4437 if (find_help_tags(*pat == NUL ? (char_u *)"help" : pat,
4438 num_file, file, FALSE) == OK)
4439 {
4440 #ifdef FEAT_MULTI_LANG
4441 cleanup_help_tags(*num_file, *file);
4442 #endif
4443 return OK;
4444 }
4445 return FAIL;
4446 }
4447
4448 #ifndef FEAT_CMDL_COMPL
4449 return FAIL;
4450 #else
4451 if (xp->xp_context == EXPAND_SHELLCMD)
4452 return expand_shellcmd(pat, num_file, file, flags);
4453 if (xp->xp_context == EXPAND_OLD_SETTING)
4454 return ExpandOldSetting(num_file, file);
4455 if (xp->xp_context == EXPAND_BUFFERS)
4456 return ExpandBufnames(pat, num_file, file, options);
4457 if (xp->xp_context == EXPAND_TAGS
4458 || xp->xp_context == EXPAND_TAGS_LISTFILES)
4459 return expand_tags(xp->xp_context == EXPAND_TAGS, pat, num_file, file);
4460 if (xp->xp_context == EXPAND_COLORS)
4461 return ExpandRTDir(pat, num_file, file, "colors");
4462 if (xp->xp_context == EXPAND_COMPILER)
4463 return ExpandRTDir(pat, num_file, file, "compiler");
4464 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4465 if (xp->xp_context == EXPAND_USER_LIST)
4466 return ExpandUserList(xp, num_file, file);
4467 # endif
4468
4469 regmatch.regprog = vim_regcomp(pat, p_magic ? RE_MAGIC : 0);
4470 if (regmatch.regprog == NULL)
4471 return FAIL;
4472
4473 /* set ignore-case according to p_ic, p_scs and pat */
4474 regmatch.rm_ic = ignorecase(pat);
4475
4476 if (xp->xp_context == EXPAND_SETTINGS
4477 || xp->xp_context == EXPAND_BOOL_SETTINGS)
4478 ret = ExpandSettings(xp, &regmatch, num_file, file);
4479 else if (xp->xp_context == EXPAND_MAPPINGS)
4480 ret = ExpandMappings(&regmatch, num_file, file);
4481 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4482 else if (xp->xp_context == EXPAND_USER_DEFINED)
4483 ret = ExpandUserDefined(xp, &regmatch, num_file, file);
4484 # endif
4485 else
4486 {
4487 static struct expgen
4488 {
4489 int context;
4490 char_u *((*func)__ARGS((expand_T *, int)));
4491 int ic;
4492 } tab[] =
4493 {
4494 {EXPAND_COMMANDS, get_command_name, FALSE},
4495 {EXPAND_BEHAVE, get_behave_arg, TRUE},
4496 #ifdef FEAT_USR_CMDS
4497 {EXPAND_USER_COMMANDS, get_user_commands, FALSE},
4498 {EXPAND_USER_CMD_FLAGS, get_user_cmd_flags, FALSE},
4499 {EXPAND_USER_NARGS, get_user_cmd_nargs, FALSE},
4500 {EXPAND_USER_COMPLETE, get_user_cmd_complete, FALSE},
4501 #endif
4502 #ifdef FEAT_EVAL
4503 {EXPAND_USER_VARS, get_user_var_name, FALSE},
4504 {EXPAND_FUNCTIONS, get_function_name, FALSE},
4505 {EXPAND_USER_FUNC, get_user_func_name, FALSE},
4506 {EXPAND_EXPRESSION, get_expr_name, FALSE},
4507 #endif
4508 #ifdef FEAT_MENU
4509 {EXPAND_MENUS, get_menu_name, FALSE},
4510 {EXPAND_MENUNAMES, get_menu_names, FALSE},
4511 #endif
4512 #ifdef FEAT_SYN_HL
4513 {EXPAND_SYNTAX, get_syntax_name, TRUE},
4514 #endif
4515 {EXPAND_HIGHLIGHT, get_highlight_name, TRUE},
4516 #ifdef FEAT_AUTOCMD
4517 {EXPAND_EVENTS, get_event_name, TRUE},
4518 {EXPAND_AUGROUP, get_augroup_name, TRUE},
4519 #endif
4520 #ifdef FEAT_CSCOPE
4521 {EXPAND_CSCOPE, get_cscope_name, TRUE},
4522 #endif
4523 #ifdef FEAT_SIGNS
4524 {EXPAND_SIGN, get_sign_name, TRUE},
4525 #endif
4526 #ifdef FEAT_PROFILE
4527 {EXPAND_PROFILE, get_profile_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 };
4535 int i;
4536
4537 /*
4538 * Find a context in the table and call the ExpandGeneric() with the
4539 * right function to do the expansion.
4540 */
4541 ret = FAIL;
4542 for (i = 0; i < (int)(sizeof(tab) / sizeof(struct expgen)); ++i)
4543 if (xp->xp_context == tab[i].context)
4544 {
4545 if (tab[i].ic)
4546 regmatch.rm_ic = TRUE;
4547 ret = ExpandGeneric(xp, &regmatch, num_file, file, tab[i].func);
4548 break;
4549 }
4550 }
4551
4552 vim_free(regmatch.regprog);
4553
4554 return ret;
4555 #endif /* FEAT_CMDL_COMPL */
4556 }
4557
4558 #if defined(FEAT_CMDL_COMPL) || defined(PROTO)
4559 /*
4560 * Expand a list of names.
4561 *
4562 * Generic function for command line completion. It calls a function to
4563 * obtain strings, one by one. The strings are matched against a regexp
4564 * program. Matching strings are copied into an array, which is returned.
4565 *
4566 * Returns OK when no problems encountered, FAIL for error (out of memory).
4567 */
4568 int
4569 ExpandGeneric(xp, regmatch, num_file, file, func)
4570 expand_T *xp;
4571 regmatch_T *regmatch;
4572 int *num_file;
4573 char_u ***file;
4574 char_u *((*func)__ARGS((expand_T *, int)));
4575 /* returns a string from the list */
4576 {
4577 int i;
4578 int count = 0;
4579 int round;
4580 char_u *str;
4581
4582 /* do this loop twice:
4583 * round == 0: count the number of matching names
4584 * round == 1: copy the matching names into allocated memory
4585 */
4586 for (round = 0; round <= 1; ++round)
4587 {
4588 for (i = 0; ; ++i)
4589 {
4590 str = (*func)(xp, i);
4591 if (str == NULL) /* end of list */
4592 break;
4593 if (*str == NUL) /* skip empty strings */
4594 continue;
4595
4596 if (vim_regexec(regmatch, str, (colnr_T)0))
4597 {
4598 if (round)
4599 {
4600 str = vim_strsave_escaped(str, (char_u *)" \t\\.");
4601 (*file)[count] = str;
4602 #ifdef FEAT_MENU
4603 if (func == get_menu_names && str != NULL)
4604 {
4605 /* test for separator added by get_menu_names() */
4606 str += STRLEN(str) - 1;
4607 if (*str == '\001')
4608 *str = '.';
4609 }
4610 #endif
4611 }
4612 ++count;
4613 }
4614 }
4615 if (round == 0)
4616 {
4617 if (count == 0)
4618 return OK;
4619 *num_file = count;
4620 *file = (char_u **)alloc((unsigned)(count * sizeof(char_u *)));
4621 if (*file == NULL)
4622 {
4623 *file = (char_u **)"";
4624 return FAIL;
4625 }
4626 count = 0;
4627 }
4628 }
4629
4630 /* Sort the results. Keep menu's in the specified order. */
4631 if (xp->xp_context != EXPAND_MENUNAMES && xp->xp_context != EXPAND_MENUS)
4632 sort_strings(*file, *num_file);
4633
4634 #ifdef FEAT_CMDL_COMPL
4635 /* Reset the variables used for special highlight names expansion, so that
4636 * they don't show up when getting normal highlight names by ID. */
4637 reset_expand_highlight();
4638 #endif
4639
4640 return OK;
4641 }
4642
4643 /*
4644 * Complete a shell command.
4645 * Returns FAIL or OK;
4646 */
4647 static int
4648 expand_shellcmd(filepat, num_file, file, flagsarg)
4649 char_u *filepat; /* pattern to match with command names */
4650 int *num_file; /* return: number of matches */
4651 char_u ***file; /* return: array with matches */
4652 int flagsarg; /* EW_ flags */
4653 {
4654 char_u *pat;
4655 int i;
4656 char_u *path;
4657 int mustfree = FALSE;
4658 garray_T ga;
4659 char_u *buf = alloc(MAXPATHL);
4660 size_t l;
4661 char_u *s, *e;
4662 int flags = flagsarg;
4663 int ret;
4664
4665 if (buf == NULL)
4666 return FAIL;
4667
4668 /* for ":set path=" and ":set tags=" halve backslashes for escaped
4669 * space */
4670 pat = vim_strsave(filepat);
4671 for (i = 0; pat[i]; ++i)
4672 if (pat[i] == '\\' && pat[i + 1] == ' ')
4673 STRMOVE(pat + i, pat + i + 1);
4674
4675 flags |= EW_FILE | EW_EXEC;
4676
4677 /* For an absolute name we don't use $PATH. */
4678 if (mch_isFullName(pat))
4679 path = (char_u *)" ";
4680 else if ((pat[0] == '.' && (vim_ispathsep(pat[1])
4681 || (pat[1] == '.' && vim_ispathsep(pat[2])))))
4682 path = (char_u *)".";
4683 else
4684 path = vim_getenv((char_u *)"PATH", &mustfree);
4685
4686 /*
4687 * Go over all directories in $PATH. Expand matches in that directory and
4688 * collect them in "ga".
4689 */
4690 ga_init2(&ga, (int)sizeof(char *), 10);
4691 for (s = path; *s != NUL; s = e)
4692 {
4693 if (*s == ' ')
4694 ++s; /* Skip space used for absolute path name. */
4695
4696 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
4697 e = vim_strchr(s, ';');
4698 #else
4699 e = vim_strchr(s, ':');
4700 #endif
4701 if (e == NULL)
4702 e = s + STRLEN(s);
4703
4704 l = e - s;
4705 if (l > MAXPATHL - 5)
4706 break;
4707 vim_strncpy(buf, s, l);
4708 add_pathsep(buf);
4709 l = STRLEN(buf);
4710 vim_strncpy(buf + l, pat, MAXPATHL - 1 - l);
4711
4712 /* Expand matches in one directory of $PATH. */
4713 ret = expand_wildcards(1, &buf, num_file, file, flags);
4714 if (ret == OK)
4715 {
4716 if (ga_grow(&ga, *num_file) == FAIL)
4717 FreeWild(*num_file, *file);
4718 else
4719 {
4720 for (i = 0; i < *num_file; ++i)
4721 {
4722 s = (*file)[i];
4723 if (STRLEN(s) > l)
4724 {
4725 /* Remove the path again. */
4726 STRMOVE(s, s + l);
4727 ((char_u **)ga.ga_data)[ga.ga_len++] = s;
4728 }
4729 else
4730 vim_free(s);
4731 }
4732 vim_free(*file);
4733 }
4734 }
4735 if (*e != NUL)
4736 ++e;
4737 }
4738 *file = ga.ga_data;
4739 *num_file = ga.ga_len;
4740
4741 vim_free(buf);
4742 vim_free(pat);
4743 if (mustfree)
4744 vim_free(path);
4745 return OK;
4746 }
4747
4748
4749 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4750 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));
4751
4752 /*
4753 * Call "user_expand_func()" to invoke a user defined VimL function and return
4754 * the result (either a string or a List).
4755 */
4756 static void *
4757 call_user_expand_func(user_expand_func, xp, num_file, file)
4758 void *(*user_expand_func) __ARGS((char_u *, int, char_u **, int));
4759 expand_T *xp;
4760 int *num_file;
4761 char_u ***file;
4762 {
4763 char_u keep;
4764 char_u num[50];
4765 char_u *args[3];
4766 int save_current_SID = current_SID;
4767 void *ret;
4768 struct cmdline_info save_ccline;
4769
4770 if (xp->xp_arg == NULL || xp->xp_arg[0] == '\0')
4771 return NULL;
4772 *num_file = 0;
4773 *file = NULL;
4774
4775 if (ccline.cmdbuff == NULL)
4776 {
4777 /* Completion from Insert mode, pass fake arguments. */
4778 keep = 0;
4779 sprintf((char *)num, "%d", (int)STRLEN(xp->xp_pattern));
4780 args[1] = xp->xp_pattern;
4781 }
4782 else
4783 {
4784 /* Completion on the command line, pass real arguments. */
4785 keep = ccline.cmdbuff[ccline.cmdlen];
4786 ccline.cmdbuff[ccline.cmdlen] = 0;
4787 sprintf((char *)num, "%d", ccline.cmdpos);
4788 args[1] = ccline.cmdbuff;
4789 }
4790 args[0] = vim_strnsave(xp->xp_pattern, xp->xp_pattern_len);
4791 args[2] = num;
4792
4793 /* Save the cmdline, we don't know what the function may do. */
4794 save_ccline = ccline;
4795 ccline.cmdbuff = NULL;
4796 ccline.cmdprompt = NULL;
4797 current_SID = xp->xp_scriptID;
4798
4799 ret = user_expand_func(xp->xp_arg, 3, args, FALSE);
4800
4801 ccline = save_ccline;
4802 current_SID = save_current_SID;
4803 if (ccline.cmdbuff != NULL)
4804 ccline.cmdbuff[ccline.cmdlen] = keep;
4805
4806 vim_free(args[0]);
4807 return ret;
4808 }
4809
4810 /*
4811 * Expand names with a function defined by the user.
4812 */
4813 static int
4814 ExpandUserDefined(xp, regmatch, num_file, file)
4815 expand_T *xp;
4816 regmatch_T *regmatch;
4817 int *num_file;
4818 char_u ***file;
4819 {
4820 char_u *retstr;
4821 char_u *s;
4822 char_u *e;
4823 char_u keep;
4824 garray_T ga;
4825
4826 retstr = call_user_expand_func(call_func_retstr, xp, num_file, file);
4827 if (retstr == NULL)
4828 return FAIL;
4829
4830 ga_init2(&ga, (int)sizeof(char *), 3);
4831 for (s = retstr; *s != NUL; s = e)
4832 {
4833 e = vim_strchr(s, '\n');
4834 if (e == NULL)
4835 e = s + STRLEN(s);
4836 keep = *e;
4837 *e = 0;
4838
4839 if (xp->xp_pattern[0] && vim_regexec(regmatch, s, (colnr_T)0) == 0)
4840 {
4841 *e = keep;
4842 if (*e != NUL)
4843 ++e;
4844 continue;
4845 }
4846
4847 if (ga_grow(&ga, 1) == FAIL)
4848 break;
4849
4850 ((char_u **)ga.ga_data)[ga.ga_len] = vim_strnsave(s, (int)(e - s));
4851 ++ga.ga_len;
4852
4853 *e = keep;
4854 if (*e != NUL)
4855 ++e;
4856 }
4857 vim_free(retstr);
4858 *file = ga.ga_data;
4859 *num_file = ga.ga_len;
4860 return OK;
4861 }
4862
4863 /*
4864 * Expand names with a list returned by a function defined by the user.
4865 */
4866 static int
4867 ExpandUserList(xp, num_file, file)
4868 expand_T *xp;
4869 int *num_file;
4870 char_u ***file;
4871 {
4872 list_T *retlist;
4873 listitem_T *li;
4874 garray_T ga;
4875
4876 retlist = call_user_expand_func(call_func_retlist, xp, num_file, file);
4877 if (retlist == NULL)
4878 return FAIL;
4879
4880 ga_init2(&ga, (int)sizeof(char *), 3);
4881 /* Loop over the items in the list. */
4882 for (li = retlist->lv_first; li != NULL; li = li->li_next)
4883 {
4884 if (li->li_tv.v_type != VAR_STRING || li->li_tv.vval.v_string == NULL)
4885 continue; /* Skip non-string items and empty strings */
4886
4887 if (ga_grow(&ga, 1) == FAIL)
4888 break;
4889
4890 ((char_u **)ga.ga_data)[ga.ga_len] =
4891 vim_strsave(li->li_tv.vval.v_string);
4892 ++ga.ga_len;
4893 }
4894 list_unref(retlist);
4895
4896 *file = ga.ga_data;
4897 *num_file = ga.ga_len;
4898 return OK;
4899 }
4900 #endif
4901
4902 /*
4903 * Expand color scheme names: 'runtimepath'/colors/{pat}.vim
4904 * or compiler names.
4905 */
4906 static int
4907 ExpandRTDir(pat, num_file, file, dirname)
4908 char_u *pat;
4909 int *num_file;
4910 char_u ***file;
4911 char *dirname; /* "colors" or "compiler" */
4912 {
4913 char_u *all;
4914 char_u *s;
4915 char_u *e;
4916 garray_T ga;
4917
4918 *num_file = 0;
4919 *file = NULL;
4920 s = alloc((unsigned)(STRLEN(pat) + STRLEN(dirname) + 7));
4921 if (s == NULL)
4922 return FAIL;
4923 sprintf((char *)s, "%s/%s*.vim", dirname, pat);
4924 all = globpath(p_rtp, s, 0);
4925 vim_free(s);
4926 if (all == NULL)
4927 return FAIL;
4928
4929 ga_init2(&ga, (int)sizeof(char *), 3);
4930 for (s = all; *s != NUL; s = e)
4931 {
4932 e = vim_strchr(s, '\n');
4933 if (e == NULL)
4934 e = s + STRLEN(s);
4935 if (ga_grow(&ga, 1) == FAIL)
4936 break;
4937 if (e - 4 > s && STRNICMP(e - 4, ".vim", 4) == 0)
4938 {
4939 for (s = e - 4; s > all; mb_ptr_back(all, s))
4940 if (*s == '\n' || vim_ispathsep(*s))
4941 break;
4942 ++s;
4943 ((char_u **)ga.ga_data)[ga.ga_len] =
4944 vim_strnsave(s, (int)(e - s - 4));
4945 ++ga.ga_len;
4946 }
4947 if (*e != NUL)
4948 ++e;
4949 }
4950 vim_free(all);
4951 *file = ga.ga_data;
4952 *num_file = ga.ga_len;
4953 return OK;
4954 }
4955
4956 #endif
4957
4958 #if defined(FEAT_CMDL_COMPL) || defined(FEAT_EVAL) || defined(PROTO)
4959 /*
4960 * Expand "file" for all comma-separated directories in "path".
4961 * Returns an allocated string with all matches concatenated, separated by
4962 * newlines. Returns NULL for an error or no matches.
4963 */
4964 char_u *
4965 globpath(path, file, expand_options)
4966 char_u *path;
4967 char_u *file;
4968 int expand_options;
4969 {
4970 expand_T xpc;
4971 char_u *buf;
4972 garray_T ga;
4973 int i;
4974 int len;
4975 int num_p;
4976 char_u **p;
4977 char_u *cur = NULL;
4978
4979 buf = alloc(MAXPATHL);
4980 if (buf == NULL)
4981 return NULL;
4982
4983 ExpandInit(&xpc);
4984 xpc.xp_context = EXPAND_FILES;
4985
4986 ga_init2(&ga, 1, 100);
4987
4988 /* Loop over all entries in {path}. */
4989 while (*path != NUL)
4990 {
4991 /* Copy one item of the path to buf[] and concatenate the file name. */
4992 copy_option_part(&path, buf, MAXPATHL, ",");
4993 if (STRLEN(buf) + STRLEN(file) + 2 < MAXPATHL)
4994 {
4995 add_pathsep(buf);
4996 STRCAT(buf, file);
4997 if (ExpandFromContext(&xpc, buf, &num_p, &p,
4998 WILD_SILENT|expand_options) != FAIL && num_p > 0)
4999 {
5000 ExpandEscape(&xpc, buf, num_p, p, WILD_SILENT|expand_options);
5001 for (len = 0, i = 0; i < num_p; ++i)
5002 len += (int)STRLEN(p[i]) + 1;
5003
5004 /* Concatenate new results to previous ones. */
5005 if (ga_grow(&ga, len) == OK)
5006 {
5007 cur = (char_u *)ga.ga_data + ga.ga_len;
5008 for (i = 0; i < num_p; ++i)
5009 {
5010 STRCPY(cur, p[i]);
5011 cur += STRLEN(p[i]);
5012 *cur++ = '\n';
5013 }
5014 ga.ga_len += len;
5015 }
5016 FreeWild(num_p, p);
5017 }
5018 }
5019 }
5020 if (cur != NULL)
5021 *--cur = 0; /* Replace trailing newline with NUL */
5022
5023 vim_free(buf);
5024 return (char_u *)ga.ga_data;
5025 }
5026
5027 #endif
5028
5029 #if defined(FEAT_CMDHIST) || defined(PROTO)
5030
5031 /*********************************
5032 * Command line history stuff *
5033 *********************************/
5034
5035 /*
5036 * Translate a history character to the associated type number.
5037 */
5038 static int
5039 hist_char2type(c)
5040 int c;
5041 {
5042 if (c == ':')
5043 return HIST_CMD;
5044 if (c == '=')
5045 return HIST_EXPR;
5046 if (c == '@')
5047 return HIST_INPUT;
5048 if (c == '>')
5049 return HIST_DEBUG;
5050 return HIST_SEARCH; /* must be '?' or '/' */
5051 }
5052
5053 /*
5054 * Table of history names.
5055 * These names are used in :history and various hist...() functions.
5056 * It is sufficient to give the significant prefix of a history name.
5057 */
5058
5059 static char *(history_names[]) =
5060 {
5061 "cmd",
5062 "search",
5063 "expr",
5064 "input",
5065 "debug",
5066 NULL
5067 };
5068
5069 /*
5070 * init_history() - Initialize the command line history.
5071 * Also used to re-allocate the history when the size changes.
5072 */
5073 void
5074 init_history()
5075 {
5076 int newlen; /* new length of history table */
5077 histentry_T *temp;
5078 int i;
5079 int j;
5080 int type;
5081
5082 /*
5083 * If size of history table changed, reallocate it
5084 */
5085 newlen = (int)p_hi;
5086 if (newlen != hislen) /* history length changed */
5087 {
5088 for (type = 0; type < HIST_COUNT; ++type) /* adjust the tables */
5089 {
5090 if (newlen)
5091 {
5092 temp = (histentry_T *)lalloc(
5093 (long_u)(newlen * sizeof(histentry_T)), TRUE);
5094 if (temp == NULL) /* out of memory! */
5095 {
5096 if (type == 0) /* first one: just keep the old length */
5097 {
5098 newlen = hislen;
5099 break;
5100 }
5101 /* Already changed one table, now we can only have zero
5102 * length for all tables. */
5103 newlen = 0;
5104 type = -1;
5105 continue;
5106 }
5107 }
5108 else
5109 temp = NULL;
5110 if (newlen == 0 || temp != NULL)
5111 {
5112 if (hisidx[type] < 0) /* there are no entries yet */
5113 {
5114 for (i = 0; i < newlen; ++i)
5115 {
5116 temp[i].hisnum = 0;
5117 temp[i].hisstr = NULL;
5118 }
5119 }
5120 else if (newlen > hislen) /* array becomes bigger */
5121 {
5122 for (i = 0; i <= hisidx[type]; ++i)
5123 temp[i] = history[type][i];
5124 j = i;
5125 for ( ; i <= newlen - (hislen - hisidx[type]); ++i)
5126 {
5127 temp[i].hisnum = 0;
5128 temp[i].hisstr = NULL;
5129 }
5130 for ( ; j < hislen; ++i, ++j)
5131 temp[i] = history[type][j];
5132 }
5133 else /* array becomes smaller or 0 */
5134 {
5135 j = hisidx[type];
5136 for (i = newlen - 1; ; --i)
5137 {
5138 if (i >= 0) /* copy newest entries */
5139 temp[i] = history[type][j];
5140 else /* remove older entries */
5141 vim_free(history[type][j].hisstr);
5142 if (--j < 0)
5143 j = hislen - 1;
5144 if (j == hisidx[type])
5145 break;
5146 }
5147 hisidx[type] = newlen - 1;
5148 }
5149 vim_free(history[type]);
5150 history[type] = temp;
5151 }
5152 }
5153 hislen = newlen;
5154 }
5155 }
5156
5157 /*
5158 * Check if command line 'str' is already in history.
5159 * If 'move_to_front' is TRUE, matching entry is moved to end of history.
5160 */
5161 static int
5162 in_history(type, str, move_to_front)
5163 int type;
5164 char_u *str;
5165 int move_to_front; /* Move the entry to the front if it exists */
5166 {
5167 int i;
5168 int last_i = -1;
5169
5170 if (hisidx[type] < 0)
5171 return FALSE;
5172 i = hisidx[type];
5173 do
5174 {
5175 if (history[type][i].hisstr == NULL)
5176 return FALSE;
5177 if (STRCMP(str, history[type][i].hisstr) == 0)
5178 {
5179 if (!move_to_front)
5180 return TRUE;
5181 last_i = i;
5182 break;
5183 }
5184 if (--i < 0)
5185 i = hislen - 1;
5186 } while (i != hisidx[type]);
5187
5188 if (last_i >= 0)
5189 {
5190 str = history[type][i].hisstr;
5191 while (i != hisidx[type])
5192 {
5193 if (++i >= hislen)
5194 i = 0;
5195 history[type][last_i] = history[type][i];
5196 last_i = i;
5197 }
5198 history[type][i].hisstr = str;
5199 history[type][i].hisnum = ++hisnum[type];
5200 return TRUE;
5201 }
5202 return FALSE;
5203 }
5204
5205 /*
5206 * Convert history name (from table above) to its HIST_ equivalent.
5207 * When "name" is empty, return "cmd" history.
5208 * Returns -1 for unknown history name.
5209 */
5210 int
5211 get_histtype(name)
5212 char_u *name;
5213 {
5214 int i;
5215 int len = (int)STRLEN(name);
5216
5217 /* No argument: use current history. */
5218 if (len == 0)
5219 return hist_char2type(ccline.cmdfirstc);
5220
5221 for (i = 0; history_names[i] != NULL; ++i)
5222 if (STRNICMP(name, history_names[i], len) == 0)
5223 return i;
5224
5225 if (vim_strchr((char_u *)":=@>?/", name[0]) != NULL && name[1] == NUL)
5226 return hist_char2type(name[0]);
5227
5228 return -1;
5229 }
5230
5231 static int last_maptick = -1; /* last seen maptick */
5232
5233 /*
5234 * Add the given string to the given history. If the string is already in the
5235 * history then it is moved to the front. "histype" may be one of he HIST_
5236 * values.
5237 */
5238 void
5239 add_to_history(histype, new_entry, in_map, sep)
5240 int histype;
5241 char_u *new_entry;
5242 int in_map; /* consider maptick when inside a mapping */
5243 int sep; /* separator character used (search hist) */
5244 {
5245 histentry_T *hisptr;
5246 int len;
5247
5248 if (hislen == 0) /* no history */
5249 return;
5250
5251 /*
5252 * Searches inside the same mapping overwrite each other, so that only
5253 * the last line is kept. Be careful not to remove a line that was moved
5254 * down, only lines that were added.
5255 */
5256 if (histype == HIST_SEARCH && in_map)
5257 {
5258 if (maptick == last_maptick)
5259 {
5260 /* Current line is from the same mapping, remove it */
5261 hisptr = &history[HIST_SEARCH][hisidx[HIST_SEARCH]];
5262 vim_free(hisptr->hisstr);
5263 hisptr->hisstr = NULL;
5264 hisptr->hisnum = 0;
5265 --hisnum[histype];
5266 if (--hisidx[HIST_SEARCH] < 0)
5267 hisidx[HIST_SEARCH] = hislen - 1;
5268 }
5269 last_maptick = -1;
5270 }
5271 if (!in_history(histype, new_entry, TRUE))
5272 {
5273 if (++hisidx[histype] == hislen)
5274 hisidx[histype] = 0;
5275 hisptr = &history[histype][hisidx[histype]];
5276 vim_free(hisptr->hisstr);
5277
5278 /* Store the separator after the NUL of the string. */
5279 len = (int)STRLEN(new_entry);
5280 hisptr->hisstr = vim_strnsave(new_entry, len + 2);
5281 if (hisptr->hisstr != NULL)
5282 hisptr->hisstr[len + 1] = sep;
5283
5284 hisptr->hisnum = ++hisnum[histype];
5285 if (histype == HIST_SEARCH && in_map)
5286 last_maptick = maptick;
5287 }
5288 }
5289
5290 #if defined(FEAT_EVAL) || defined(PROTO)
5291
5292 /*
5293 * Get identifier of newest history entry.
5294 * "histype" may be one of the HIST_ values.
5295 */
5296 int
5297 get_history_idx(histype)
5298 int histype;
5299 {
5300 if (hislen == 0 || histype < 0 || histype >= HIST_COUNT
5301 || hisidx[histype] < 0)
5302 return -1;
5303
5304 return history[histype][hisidx[histype]].hisnum;
5305 }
5306
5307 static struct cmdline_info *get_ccline_ptr __ARGS((void));
5308
5309 /*
5310 * Get pointer to the command line info to use. cmdline_paste() may clear
5311 * ccline and put the previous value in prev_ccline.
5312 */
5313 static struct cmdline_info *
5314 get_ccline_ptr()
5315 {
5316 if ((State & CMDLINE) == 0)
5317 return NULL;
5318 if (ccline.cmdbuff != NULL)
5319 return &ccline;
5320 if (prev_ccline_used && prev_ccline.cmdbuff != NULL)
5321 return &prev_ccline;
5322 return NULL;
5323 }
5324
5325 /*
5326 * Get the current command line in allocated memory.
5327 * Only works when the command line is being edited.
5328 * Returns NULL when something is wrong.
5329 */
5330 char_u *
5331 get_cmdline_str()
5332 {
5333 struct cmdline_info *p = get_ccline_ptr();
5334
5335 if (p == NULL)
5336 return NULL;
5337 return vim_strnsave(p->cmdbuff, p->cmdlen);
5338 }
5339
5340 /*
5341 * Get the current command line position, counted in bytes.
5342 * Zero is the first position.
5343 * Only works when the command line is being edited.
5344 * Returns -1 when something is wrong.
5345 */
5346 int
5347 get_cmdline_pos()
5348 {
5349 struct cmdline_info *p = get_ccline_ptr();
5350
5351 if (p == NULL)
5352 return -1;
5353 return p->cmdpos;
5354 }
5355
5356 /*
5357 * Set the command line byte position to "pos". Zero is the first position.
5358 * Only works when the command line is being edited.
5359 * Returns 1 when failed, 0 when OK.
5360 */
5361 int
5362 set_cmdline_pos(pos)
5363 int pos;
5364 {
5365 struct cmdline_info *p = get_ccline_ptr();
5366
5367 if (p == NULL)
5368 return 1;
5369
5370 /* The position is not set directly but after CTRL-\ e or CTRL-R = has
5371 * changed the command line. */
5372 if (pos < 0)
5373 new_cmdpos = 0;
5374 else
5375 new_cmdpos = pos;
5376 return 0;
5377 }
5378
5379 /*
5380 * Get the current command-line type.
5381 * Returns ':' or '/' or '?' or '@' or '>' or '-'
5382 * Only works when the command line is being edited.
5383 * Returns NUL when something is wrong.
5384 */
5385 int
5386 get_cmdline_type()
5387 {
5388 struct cmdline_info *p = get_ccline_ptr();
5389
5390 if (p == NULL)
5391 return NUL;
5392 if (p->cmdfirstc == NUL)
5393 return (p->input_fn) ? '@' : '-';
5394 return p->cmdfirstc;
5395 }
5396
5397 /*
5398 * Calculate history index from a number:
5399 * num > 0: seen as identifying number of a history entry
5400 * num < 0: relative position in history wrt newest entry
5401 * "histype" may be one of the HIST_ values.
5402 */
5403 static int
5404 calc_hist_idx(histype, num)
5405 int histype;
5406 int num;
5407 {
5408 int i;
5409 histentry_T *hist;
5410 int wrapped = FALSE;
5411
5412 if (hislen == 0 || histype < 0 || histype >= HIST_COUNT
5413 || (i = hisidx[histype]) < 0 || num == 0)
5414 return -1;
5415
5416 hist = history[histype];
5417 if (num > 0)
5418 {
5419 while (hist[i].hisnum > num)
5420 if (--i < 0)
5421 {
5422 if (wrapped)
5423 break;
5424 i += hislen;
5425 wrapped = TRUE;
5426 }
5427 if (hist[i].hisnum == num && hist[i].hisstr != NULL)
5428 return i;
5429 }
5430 else if (-num <= hislen)
5431 {
5432 i += num + 1;
5433 if (i < 0)
5434 i += hislen;
5435 if (hist[i].hisstr != NULL)
5436 return i;
5437 }
5438 return -1;
5439 }
5440
5441 /*
5442 * Get a history entry by its index.
5443 * "histype" may be one of the HIST_ values.
5444 */
5445 char_u *
5446 get_history_entry(histype, idx)
5447 int histype;
5448 int idx;
5449 {
5450 idx = calc_hist_idx(histype, idx);
5451 if (idx >= 0)
5452 return history[histype][idx].hisstr;
5453 else
5454 return (char_u *)"";
5455 }
5456
5457 /*
5458 * Clear all entries of a history.
5459 * "histype" may be one of the HIST_ values.
5460 */
5461 int
5462 clr_history(histype)
5463 int histype;
5464 {
5465 int i;
5466 histentry_T *hisptr;
5467
5468 if (hislen != 0 && histype >= 0 && histype < HIST_COUNT)
5469 {
5470 hisptr = history[histype];
5471 for (i = hislen; i--;)
5472 {
5473 vim_free(hisptr->hisstr);
5474 hisptr->hisnum = 0;
5475 hisptr++->hisstr = NULL;
5476 }
5477 hisidx[histype] = -1; /* mark history as cleared */
5478 hisnum[histype] = 0; /* reset identifier counter */
5479 return OK;
5480 }
5481 return FAIL;
5482 }
5483
5484 /*
5485 * Remove all entries matching {str} from a history.
5486 * "histype" may be one of the HIST_ values.
5487 */
5488 int
5489 del_history_entry(histype, str)
5490 int histype;
5491 char_u *str;
5492 {
5493 regmatch_T regmatch;
5494 histentry_T *hisptr;
5495 int idx;
5496 int i;
5497 int last;
5498 int found = FALSE;
5499
5500 regmatch.regprog = NULL;
5501 regmatch.rm_ic = FALSE; /* always match case */
5502 if (hislen != 0
5503 && histype >= 0
5504 && histype < HIST_COUNT
5505 && *str != NUL
5506 && (idx = hisidx[histype]) >= 0
5507 && (regmatch.regprog = vim_regcomp(str, RE_MAGIC + RE_STRING))
5508 != NULL)
5509 {
5510 i = last = idx;
5511 do
5512 {
5513 hisptr = &history[histype][i];
5514 if (hisptr->hisstr == NULL)
5515 break;
5516 if (vim_regexec(&regmatch, hisptr->hisstr, (colnr_T)0))
5517 {
5518 found = TRUE;
5519 vim_free(hisptr->hisstr);
5520 hisptr->hisstr = NULL;
5521 hisptr->hisnum = 0;
5522 }
5523 else
5524 {
5525 if (i != last)
5526 {
5527 history[histype][last] = *hisptr;
5528 hisptr->hisstr = NULL;
5529 hisptr->hisnum = 0;
5530 }
5531 if (--last < 0)
5532 last += hislen;
5533 }
5534 if (--i < 0)
5535 i += hislen;
5536 } while (i != idx);
5537 if (history[histype][idx].hisstr == NULL)
5538 hisidx[histype] = -1;
5539 }
5540 vim_free(regmatch.regprog);
5541 return found;
5542 }
5543
5544 /*
5545 * Remove an indexed entry from a history.
5546 * "histype" may be one of the HIST_ values.
5547 */
5548 int
5549 del_history_idx(histype, idx)
5550 int histype;
5551 int idx;
5552 {
5553 int i, j;
5554
5555 i = calc_hist_idx(histype, idx);
5556 if (i < 0)
5557 return FALSE;
5558 idx = hisidx[histype];
5559 vim_free(history[histype][i].hisstr);
5560
5561 /* When deleting the last added search string in a mapping, reset
5562 * last_maptick, so that the last added search string isn't deleted again.
5563 */
5564 if (histype == HIST_SEARCH && maptick == last_maptick && i == idx)
5565 last_maptick = -1;
5566
5567 while (i != idx)
5568 {
5569 j = (i + 1) % hislen;
5570 history[histype][i] = history[histype][j];
5571 i = j;
5572 }
5573 history[histype][i].hisstr = NULL;
5574 history[histype][i].hisnum = 0;
5575 if (--i < 0)
5576 i += hislen;
5577 hisidx[histype] = i;
5578 return TRUE;
5579 }
5580
5581 #endif /* FEAT_EVAL */
5582
5583 #if defined(FEAT_CRYPT) || defined(PROTO)
5584 /*
5585 * Very specific function to remove the value in ":set key=val" from the
5586 * history.
5587 */
5588 void
5589 remove_key_from_history()
5590 {
5591 char_u *p;
5592 int i;
5593
5594 i = hisidx[HIST_CMD];
5595 if (i < 0)
5596 return;
5597 p = history[HIST_CMD][i].hisstr;
5598 if (p != NULL)
5599 for ( ; *p; ++p)
5600 if (STRNCMP(p, "key", 3) == 0 && !isalpha(p[3]))
5601 {
5602 p = vim_strchr(p + 3, '=');
5603 if (p == NULL)
5604 break;
5605 ++p;
5606 for (i = 0; p[i] && !vim_iswhite(p[i]); ++i)
5607 if (p[i] == '\\' && p[i + 1])
5608 ++i;
5609 STRMOVE(p, p + i);
5610 --p;
5611 }
5612 }
5613 #endif
5614
5615 #endif /* FEAT_CMDHIST */
5616
5617 #if defined(FEAT_QUICKFIX) || defined(FEAT_CMDHIST) || defined(PROTO)
5618 /*
5619 * Get indices "num1,num2" that specify a range within a list (not a range of
5620 * text lines in a buffer!) from a string. Used for ":history" and ":clist".
5621 * Returns OK if parsed successfully, otherwise FAIL.
5622 */
5623 int
5624 get_list_range(str, num1, num2)
5625 char_u **str;
5626 int *num1;
5627 int *num2;
5628 {
5629 int len;
5630 int first = FALSE;
5631 long num;
5632
5633 *str = skipwhite(*str);
5634 if (**str == '-' || vim_isdigit(**str)) /* parse "from" part of range */
5635 {
5636 vim_str2nr(*str, NULL, &len, FALSE, FALSE, &num, NULL);
5637 *str += len;
5638 *num1 = (int)num;
5639 first = TRUE;
5640 }
5641 *str = skipwhite(*str);
5642 if (**str == ',') /* parse "to" part of range */
5643 {
5644 *str = skipwhite(*str + 1);
5645 vim_str2nr(*str, NULL, &len, FALSE, FALSE, &num, NULL);
5646 if (len > 0)
5647 {
5648 *num2 = (int)num;
5649 *str = skipwhite(*str + len);
5650 }
5651 else if (!first) /* no number given at all */
5652 return FAIL;
5653 }
5654 else if (first) /* only one number given */
5655 *num2 = *num1;
5656 return OK;
5657 }
5658 #endif
5659
5660 #if defined(FEAT_CMDHIST) || defined(PROTO)
5661 /*
5662 * :history command - print a history
5663 */
5664 void
5665 ex_history(eap)
5666 exarg_T *eap;
5667 {
5668 histentry_T *hist;
5669 int histype1 = HIST_CMD;
5670 int histype2 = HIST_CMD;
5671 int hisidx1 = 1;
5672 int hisidx2 = -1;
5673 int idx;
5674 int i, j, k;
5675 char_u *end;
5676 char_u *arg = eap->arg;
5677
5678 if (hislen == 0)
5679 {
5680 MSG(_("'history' option is zero"));
5681 return;
5682 }
5683
5684 if (!(VIM_ISDIGIT(*arg) || *arg == '-' || *arg == ','))
5685 {
5686 end = arg;
5687 while (ASCII_ISALPHA(*end)
5688 || vim_strchr((char_u *)":=@>/?", *end) != NULL)
5689 end++;
5690 i = *end;
5691 *end = NUL;
5692 histype1 = get_histtype(arg);
5693 if (histype1 == -1)
5694 {
5695 if (STRNICMP(arg, "all", STRLEN(arg)) == 0)
5696 {
5697 histype1 = 0;
5698 histype2 = HIST_COUNT-1;
5699 }
5700 else
5701 {
5702 *end = i;
5703 EMSG(_(e_trailing));
5704 return;
5705 }
5706 }
5707 else
5708 histype2 = histype1;
5709 *end = i;
5710 }
5711 else
5712 end = arg;
5713 if (!get_list_range(&end, &hisidx1, &hisidx2) || *end != NUL)
5714 {
5715 EMSG(_(e_trailing));
5716 return;
5717 }
5718
5719 for (; !got_int && histype1 <= histype2; ++histype1)
5720 {
5721 STRCPY(IObuff, "\n # ");
5722 STRCAT(STRCAT(IObuff, history_names[histype1]), " history");
5723 MSG_PUTS_TITLE(IObuff);
5724 idx = hisidx[histype1];
5725 hist = history[histype1];
5726 j = hisidx1;
5727 k = hisidx2;
5728 if (j < 0)
5729 j = (-j > hislen) ? 0 : hist[(hislen+j+idx+1) % hislen].hisnum;
5730 if (k < 0)
5731 k = (-k > hislen) ? 0 : hist[(hislen+k+idx+1) % hislen].hisnum;
5732 if (idx >= 0 && j <= k)
5733 for (i = idx + 1; !got_int; ++i)
5734 {
5735 if (i == hislen)
5736 i = 0;
5737 if (hist[i].hisstr != NULL
5738 && hist[i].hisnum >= j && hist[i].hisnum <= k)
5739 {
5740 msg_putchar('\n');
5741 sprintf((char *)IObuff, "%c%6d ", i == idx ? '>' : ' ',
5742 hist[i].hisnum);
5743 if (vim_strsize(hist[i].hisstr) > (int)Columns - 10)
5744 trunc_string(hist[i].hisstr, IObuff + STRLEN(IObuff),
5745 (int)Columns - 10);
5746 else
5747 STRCAT(IObuff, hist[i].hisstr);
5748 msg_outtrans(IObuff);
5749 out_flush();
5750 }
5751 if (i == idx)
5752 break;
5753 }
5754 }
5755 }
5756 #endif
5757
5758 #if (defined(FEAT_VIMINFO) && defined(FEAT_CMDHIST)) || defined(PROTO)
5759 static char_u **viminfo_history[HIST_COUNT] = {NULL, NULL, NULL, NULL};
5760 static int viminfo_hisidx[HIST_COUNT] = {0, 0, 0, 0};
5761 static int viminfo_hislen[HIST_COUNT] = {0, 0, 0, 0};
5762 static int viminfo_add_at_front = FALSE;
5763
5764 static int hist_type2char __ARGS((int type, int use_question));
5765
5766 /*
5767 * Translate a history type number to the associated character.
5768 */
5769 static int
5770 hist_type2char(type, use_question)
5771 int type;
5772 int use_question; /* use '?' instead of '/' */
5773 {
5774 if (type == HIST_CMD)
5775 return ':';
5776 if (type == HIST_SEARCH)
5777 {
5778 if (use_question)
5779 return '?';
5780 else
5781 return '/';
5782 }
5783 if (type == HIST_EXPR)
5784 return '=';
5785 return '@';
5786 }
5787
5788 /*
5789 * Prepare for reading the history from the viminfo file.
5790 * This allocates history arrays to store the read history lines.
5791 */
5792 void
5793 prepare_viminfo_history(asklen)
5794 int asklen;
5795 {
5796 int i;
5797 int num;
5798 int type;
5799 int len;
5800
5801 init_history();
5802 viminfo_add_at_front = (asklen != 0);
5803 if (asklen > hislen)
5804 asklen = hislen;
5805
5806 for (type = 0; type < HIST_COUNT; ++type)
5807 {
5808 /*
5809 * Count the number of empty spaces in the history list. If there are
5810 * more spaces available than we request, then fill them up.
5811 */
5812 for (i = 0, num = 0; i < hislen; i++)
5813 if (history[type][i].hisstr == NULL)
5814 num++;
5815 len = asklen;
5816 if (num > len)
5817 len = num;
5818 if (len <= 0)
5819 viminfo_history[type] = NULL;
5820 else
5821 viminfo_history[type] =
5822 (char_u **)lalloc((long_u)(len * sizeof(char_u *)), FALSE);
5823 if (viminfo_history[type] == NULL)
5824 len = 0;
5825 viminfo_hislen[type] = len;
5826 viminfo_hisidx[type] = 0;
5827 }
5828 }
5829
5830 /*
5831 * Accept a line from the viminfo, store it in the history array when it's
5832 * new.
5833 */
5834 int
5835 read_viminfo_history(virp)
5836 vir_T *virp;
5837 {
5838 int type;
5839 long_u len;
5840 char_u *val;
5841 char_u *p;
5842
5843 type = hist_char2type(virp->vir_line[0]);
5844 if (viminfo_hisidx[type] < viminfo_hislen[type])
5845 {
5846 val = viminfo_readstring(virp, 1, TRUE);
5847 if (val != NULL && *val != NUL)
5848 {
5849 if (!in_history(type, val + (type == HIST_SEARCH),
5850 viminfo_add_at_front))
5851 {
5852 /* Need to re-allocate to append the separator byte. */
5853 len = STRLEN(val);
5854 p = lalloc(len + 2, TRUE);
5855 if (p != NULL)
5856 {
5857 if (type == HIST_SEARCH)
5858 {
5859 /* Search entry: Move the separator from the first
5860 * column to after the NUL. */
5861 mch_memmove(p, val + 1, (size_t)len);
5862 p[len] = (*val == ' ' ? NUL : *val);
5863 }
5864 else
5865 {
5866 /* Not a search entry: No separator in the viminfo
5867 * file, add a NUL separator. */
5868 mch_memmove(p, val, (size_t)len + 1);
5869 p[len + 1] = NUL;
5870 }
5871 viminfo_history[type][viminfo_hisidx[type]++] = p;
5872 }
5873 }
5874 }
5875 vim_free(val);
5876 }
5877 return viminfo_readline(virp);
5878 }
5879
5880 void
5881 finish_viminfo_history()
5882 {
5883 int idx;
5884 int i;
5885 int type;
5886
5887 for (type = 0; type < HIST_COUNT; ++type)
5888 {
5889 if (history[type] == NULL)
5890 return;
5891 idx = hisidx[type] + viminfo_hisidx[type];
5892 if (idx >= hislen)
5893 idx -= hislen;
5894 else if (idx < 0)
5895 idx = hislen - 1;
5896 if (viminfo_add_at_front)
5897 hisidx[type] = idx;
5898 else
5899 {
5900 if (hisidx[type] == -1)
5901 hisidx[type] = hislen - 1;
5902 do
5903 {
5904 if (history[type][idx].hisstr != NULL)
5905 break;
5906 if (++idx == hislen)
5907 idx = 0;
5908 } while (idx != hisidx[type]);
5909 if (idx != hisidx[type] && --idx < 0)
5910 idx = hislen - 1;
5911 }
5912 for (i = 0; i < viminfo_hisidx[type]; i++)
5913 {
5914 vim_free(history[type][idx].hisstr);
5915 history[type][idx].hisstr = viminfo_history[type][i];
5916 if (--idx < 0)
5917 idx = hislen - 1;
5918 }
5919 idx += 1;
5920 idx %= hislen;
5921 for (i = 0; i < viminfo_hisidx[type]; i++)
5922 {
5923 history[type][idx++].hisnum = ++hisnum[type];
5924 idx %= hislen;
5925 }
5926 vim_free(viminfo_history[type]);
5927 viminfo_history[type] = NULL;
5928 }
5929 }
5930
5931 void
5932 write_viminfo_history(fp)
5933 FILE *fp;
5934 {
5935 int i;
5936 int type;
5937 int num_saved;
5938 char_u *p;
5939 int c;
5940
5941 init_history();
5942 if (hislen == 0)
5943 return;
5944 for (type = 0; type < HIST_COUNT; ++type)
5945 {
5946 num_saved = get_viminfo_parameter(hist_type2char(type, FALSE));
5947 if (num_saved == 0)
5948 continue;
5949 if (num_saved < 0) /* Use default */
5950 num_saved = hislen;
5951 fprintf(fp, _("\n# %s History (newest to oldest):\n"),
5952 type == HIST_CMD ? _("Command Line") :
5953 type == HIST_SEARCH ? _("Search String") :
5954 type == HIST_EXPR ? _("Expression") :
5955 _("Input Line"));
5956 if (num_saved > hislen)
5957 num_saved = hislen;
5958 i = hisidx[type];
5959 if (i >= 0)
5960 while (num_saved--)
5961 {
5962 p = history[type][i].hisstr;
5963 if (p != NULL)
5964 {
5965 fputc(hist_type2char(type, TRUE), fp);
5966 /* For the search history: put the separator in the second
5967 * column; use a space if there isn't one. */
5968 if (type == HIST_SEARCH)
5969 {
5970 c = p[STRLEN(p) + 1];
5971 putc(c == NUL ? ' ' : c, fp);
5972 }
5973 viminfo_writestring(fp, p);
5974 }
5975 if (--i < 0)
5976 i = hislen - 1;
5977 }
5978 }
5979 }
5980 #endif /* FEAT_VIMINFO */
5981
5982 #if defined(FEAT_FKMAP) || defined(PROTO)
5983 /*
5984 * Write a character at the current cursor+offset position.
5985 * It is directly written into the command buffer block.
5986 */
5987 void
5988 cmd_pchar(c, offset)
5989 int c, offset;
5990 {
5991 if (ccline.cmdpos + offset >= ccline.cmdlen || ccline.cmdpos + offset < 0)
5992 {
5993 EMSG(_("E198: cmd_pchar beyond the command length"));
5994 return;
5995 }
5996 ccline.cmdbuff[ccline.cmdpos + offset] = (char_u)c;
5997 ccline.cmdbuff[ccline.cmdlen] = NUL;
5998 }
5999
6000 int
6001 cmd_gchar(offset)
6002 int offset;
6003 {
6004 if (ccline.cmdpos + offset >= ccline.cmdlen || ccline.cmdpos + offset < 0)
6005 {
6006 /* EMSG(_("cmd_gchar beyond the command length")); */
6007 return NUL;
6008 }
6009 return (int)ccline.cmdbuff[ccline.cmdpos + offset];
6010 }
6011 #endif
6012
6013 #if defined(FEAT_CMDWIN) || defined(PROTO)
6014 /*
6015 * Open a window on the current command line and history. Allow editing in
6016 * the window. Returns when the window is closed.
6017 * Returns:
6018 * CR if the command is to be executed
6019 * Ctrl_C if it is to be abandoned
6020 * K_IGNORE if editing continues
6021 */
6022 static int
6023 ex_window()
6024 {
6025 struct cmdline_info save_ccline;
6026 buf_T *old_curbuf = curbuf;
6027 win_T *old_curwin = curwin;
6028 buf_T *bp;
6029 win_T *wp;
6030 int i;
6031 linenr_T lnum;
6032 int histtype;
6033 garray_T winsizes;
6034 #ifdef FEAT_AUTOCMD
6035 char_u typestr[2];
6036 #endif
6037 int save_restart_edit = restart_edit;
6038 int save_State = State;
6039 int save_exmode = exmode_active;
6040 #ifdef FEAT_RIGHTLEFT
6041 int save_cmdmsg_rl = cmdmsg_rl;
6042 #endif
6043
6044 /* Can't do this recursively. Can't do it when typing a password. */
6045 if (cmdwin_type != 0
6046 # if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
6047 || cmdline_star > 0
6048 # endif
6049 )
6050 {
6051 beep_flush();
6052 return K_IGNORE;
6053 }
6054
6055 /* Save current window sizes. */
6056 win_size_save(&winsizes);
6057
6058 # ifdef FEAT_AUTOCMD
6059 /* Don't execute autocommands while creating the window. */
6060 block_autocmds();
6061 # endif
6062 /* don't use a new tab page */
6063 cmdmod.tab = 0;
6064
6065 /* Create a window for the command-line buffer. */
6066 if (win_split((int)p_cwh, WSP_BOT) == FAIL)
6067 {
6068 beep_flush();
6069 # ifdef FEAT_AUTOCMD
6070 unblock_autocmds();
6071 # endif
6072 return K_IGNORE;
6073 }
6074 cmdwin_type = get_cmdline_type();
6075
6076 /* Create the command-line buffer empty. */
6077 (void)do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, ECMD_HIDE, NULL);
6078 (void)setfname(curbuf, (char_u *)"[Command Line]", NULL, TRUE);
6079 set_option_value((char_u *)"bt", 0L, (char_u *)"nofile", OPT_LOCAL);
6080 set_option_value((char_u *)"swf", 0L, NULL, OPT_LOCAL);
6081 curbuf->b_p_ma = TRUE;
6082 #ifdef FEAT_FOLDING
6083 curwin->w_p_fen = FALSE;
6084 #endif
6085 # ifdef FEAT_RIGHTLEFT
6086 curwin->w_p_rl = cmdmsg_rl;
6087 cmdmsg_rl = FALSE;
6088 # endif
6089 # ifdef FEAT_SCROLLBIND
6090 curwin->w_p_scb = FALSE;
6091 # endif
6092
6093 # ifdef FEAT_AUTOCMD
6094 /* Do execute autocommands for setting the filetype (load syntax). */
6095 unblock_autocmds();
6096 # endif
6097
6098 /* Showing the prompt may have set need_wait_return, reset it. */
6099 need_wait_return = FALSE;
6100
6101 histtype = hist_char2type(cmdwin_type);
6102 if (histtype == HIST_CMD || histtype == HIST_DEBUG)
6103 {
6104 if (p_wc == TAB)
6105 {
6106 add_map((char_u *)"<buffer> <Tab> <C-X><C-V>", INSERT);
6107 add_map((char_u *)"<buffer> <Tab> a<C-X><C-V>", NORMAL);
6108 }
6109 set_option_value((char_u *)"ft", 0L, (char_u *)"vim", OPT_LOCAL);
6110 }
6111
6112 /* Reset 'textwidth' after setting 'filetype' (the Vim filetype plugin
6113 * sets 'textwidth' to 78). */
6114 curbuf->b_p_tw = 0;
6115
6116 /* Fill the buffer with the history. */
6117 init_history();
6118 if (hislen > 0)
6119 {
6120 i = hisidx[histtype];
6121 if (i >= 0)
6122 {
6123 lnum = 0;
6124 do
6125 {
6126 if (++i == hislen)
6127 i = 0;
6128 if (history[histtype][i].hisstr != NULL)
6129 ml_append(lnum++, history[histtype][i].hisstr,
6130 (colnr_T)0, FALSE);
6131 }
6132 while (i != hisidx[histtype]);
6133 }
6134 }
6135
6136 /* Replace the empty last line with the current command-line and put the
6137 * cursor there. */
6138 ml_replace(curbuf->b_ml.ml_line_count, ccline.cmdbuff, TRUE);
6139 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6140 curwin->w_cursor.col = ccline.cmdpos;
6141 changed_line_abv_curs();
6142 invalidate_botline();
6143 redraw_later(SOME_VALID);
6144
6145 /* Save the command line info, can be used recursively. */
6146 save_ccline = ccline;
6147 ccline.cmdbuff = NULL;
6148 ccline.cmdprompt = NULL;
6149
6150 /* No Ex mode here! */
6151 exmode_active = 0;
6152
6153 State = NORMAL;
6154 # ifdef FEAT_MOUSE
6155 setmouse();
6156 # endif
6157
6158 # ifdef FEAT_AUTOCMD
6159 /* Trigger CmdwinEnter autocommands. */
6160 typestr[0] = cmdwin_type;
6161 typestr[1] = NUL;
6162 apply_autocmds(EVENT_CMDWINENTER, typestr, typestr, FALSE, curbuf);
6163 if (restart_edit != 0) /* autocmd with ":startinsert" */
6164 stuffcharReadbuff(K_NOP);
6165 # endif
6166
6167 i = RedrawingDisabled;
6168 RedrawingDisabled = 0;
6169
6170 /*
6171 * Call the main loop until <CR> or CTRL-C is typed.
6172 */
6173 cmdwin_result = 0;
6174 main_loop(TRUE, FALSE);
6175
6176 RedrawingDisabled = i;
6177
6178 # ifdef FEAT_AUTOCMD
6179 /* Trigger CmdwinLeave autocommands. */
6180 apply_autocmds(EVENT_CMDWINLEAVE, typestr, typestr, FALSE, curbuf);
6181 # endif
6182
6183 /* Restore the command line info. */
6184 ccline = save_ccline;
6185 cmdwin_type = 0;
6186
6187 exmode_active = save_exmode;
6188
6189 /* Safety check: The old window or buffer was deleted: It's a bug when
6190 * this happens! */
6191 if (!win_valid(old_curwin) || !buf_valid(old_curbuf))
6192 {
6193 cmdwin_result = Ctrl_C;
6194 EMSG(_("E199: Active window or buffer deleted"));
6195 }
6196 else
6197 {
6198 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
6199 /* autocmds may abort script processing */
6200 if (aborting() && cmdwin_result != K_IGNORE)
6201 cmdwin_result = Ctrl_C;
6202 # endif
6203 /* Set the new command line from the cmdline buffer. */
6204 vim_free(ccline.cmdbuff);
6205 if (cmdwin_result == K_XF1 || cmdwin_result == K_XF2) /* :qa[!] typed */
6206 {
6207 char *p = (cmdwin_result == K_XF2) ? "qa" : "qa!";
6208
6209 if (histtype == HIST_CMD)
6210 {
6211 /* Execute the command directly. */
6212 ccline.cmdbuff = vim_strsave((char_u *)p);
6213 cmdwin_result = CAR;
6214 }
6215 else
6216 {
6217 /* First need to cancel what we were doing. */
6218 ccline.cmdbuff = NULL;
6219 stuffcharReadbuff(':');
6220 stuffReadbuff((char_u *)p);
6221 stuffcharReadbuff(CAR);
6222 }
6223 }
6224 else if (cmdwin_result == K_XF2) /* :qa typed */
6225 {
6226 ccline.cmdbuff = vim_strsave((char_u *)"qa");
6227 cmdwin_result = CAR;
6228 }
6229 else
6230 ccline.cmdbuff = vim_strsave(ml_get_curline());
6231 if (ccline.cmdbuff == NULL)
6232 cmdwin_result = Ctrl_C;
6233 else
6234 {
6235 ccline.cmdlen = (int)STRLEN(ccline.cmdbuff);
6236 ccline.cmdbufflen = ccline.cmdlen + 1;
6237 ccline.cmdpos = curwin->w_cursor.col;
6238 if (ccline.cmdpos > ccline.cmdlen)
6239 ccline.cmdpos = ccline.cmdlen;
6240 if (cmdwin_result == K_IGNORE)
6241 {
6242 set_cmdspos_cursor();
6243 redrawcmd();
6244 }
6245 }
6246
6247 # ifdef FEAT_AUTOCMD
6248 /* Don't execute autocommands while deleting the window. */
6249 block_autocmds();
6250 # endif
6251 wp = curwin;
6252 bp = curbuf;
6253 win_goto(old_curwin);
6254 win_close(wp, TRUE);
6255
6256 /* win_close() may have already wiped the buffer when 'bh' is
6257 * set to 'wipe' */
6258 if (buf_valid(bp))
6259 close_buffer(NULL, bp, DOBUF_WIPE);
6260
6261 /* Restore window sizes. */
6262 win_size_restore(&winsizes);
6263
6264 # ifdef FEAT_AUTOCMD
6265 unblock_autocmds();
6266 # endif
6267 }
6268
6269 ga_clear(&winsizes);
6270 restart_edit = save_restart_edit;
6271 # ifdef FEAT_RIGHTLEFT
6272 cmdmsg_rl = save_cmdmsg_rl;
6273 # endif
6274
6275 State = save_State;
6276 # ifdef FEAT_MOUSE
6277 setmouse();
6278 # endif
6279
6280 return cmdwin_result;
6281 }
6282 #endif /* FEAT_CMDWIN */
6283
6284 /*
6285 * Used for commands that either take a simple command string argument, or:
6286 * cmd << endmarker
6287 * {script}
6288 * endmarker
6289 * Returns a pointer to allocated memory with {script} or NULL.
6290 */
6291 char_u *
6292 script_get(eap, cmd)
6293 exarg_T *eap;
6294 char_u *cmd;
6295 {
6296 char_u *theline;
6297 char *end_pattern = NULL;
6298 char dot[] = ".";
6299 garray_T ga;
6300
6301 if (cmd[0] != '<' || cmd[1] != '<' || eap->getline == NULL)
6302 return NULL;
6303
6304 ga_init2(&ga, 1, 0x400);
6305
6306 if (cmd[2] != NUL)
6307 end_pattern = (char *)skipwhite(cmd + 2);
6308 else
6309 end_pattern = dot;
6310
6311 for (;;)
6312 {
6313 theline = eap->getline(
6314 #ifdef FEAT_EVAL
6315 eap->cstack->cs_looplevel > 0 ? -1 :
6316 #endif
6317 NUL, eap->cookie, 0);
6318
6319 if (theline == NULL || STRCMP(end_pattern, theline) == 0)
6320 {
6321 vim_free(theline);
6322 break;
6323 }
6324
6325 ga_concat(&ga, theline);
6326 ga_append(&ga, '\n');
6327 vim_free(theline);
6328 }
6329 ga_append(&ga, NUL);
6330
6331 return (char_u *)ga.ga_data;
6332 }
Vim for the Mac