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Enable compilation without FEAT_MBYTE.
[MacVim/KaoriYa.git] / src / ex_getln.c
blob7ce48a891a08f071b475561cc6672d54d535b3f5
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 int xp_context; /* type of expansion */
35 # ifdef FEAT_EVAL
36 char_u *xp_arg; /* user-defined expansion arg */
37 int input_fn; /* when TRUE Invoked for input() function */
38 # endif
39 };
40
41 static struct cmdline_info ccline; /* current cmdline_info */
42
43 static int cmd_showtail; /* Only show path tail in lists ? */
44
45 #ifdef FEAT_EVAL
46 static int new_cmdpos; /* position set by set_cmdline_pos() */
47 #endif
48
49 #ifdef FEAT_CMDHIST
50 typedef struct hist_entry
51 {
52 int hisnum; /* identifying number */
53 char_u *hisstr; /* actual entry, separator char after the NUL */
54 } histentry_T;
55
56 static histentry_T *(history[HIST_COUNT]) = {NULL, NULL, NULL, NULL, NULL};
57 static int hisidx[HIST_COUNT] = {-1, -1, -1, -1, -1}; /* lastused entry */
58 static int hisnum[HIST_COUNT] = {0, 0, 0, 0, 0};
59 /* identifying (unique) number of newest history entry */
60 static int hislen = 0; /* actual length of history tables */
61
62 static int hist_char2type __ARGS((int c));
63
64 static int in_history __ARGS((int, char_u *, int));
65 # ifdef FEAT_EVAL
66 static int calc_hist_idx __ARGS((int histype, int num));
67 # endif
68 #endif
69
70 #ifdef FEAT_RIGHTLEFT
71 static int cmd_hkmap = 0; /* Hebrew mapping during command line */
72 #endif
73
74 #ifdef FEAT_FKMAP
75 static int cmd_fkmap = 0; /* Farsi mapping during command line */
76 #endif
77
78 static int cmdline_charsize __ARGS((int idx));
79 static void set_cmdspos __ARGS((void));
80 static void set_cmdspos_cursor __ARGS((void));
81 #ifdef FEAT_MBYTE
82 static void correct_cmdspos __ARGS((int idx, int cells));
83 #endif
84 static void alloc_cmdbuff __ARGS((int len));
85 static int realloc_cmdbuff __ARGS((int len));
86 static void draw_cmdline __ARGS((int start, int len));
87 static void save_cmdline __ARGS((struct cmdline_info *ccp));
88 static void restore_cmdline __ARGS((struct cmdline_info *ccp));
89 static int cmdline_paste __ARGS((int regname, int literally, int remcr));
90 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
91 static void redrawcmd_preedit __ARGS((void));
92 #endif
93 #ifdef FEAT_WILDMENU
94 static void cmdline_del __ARGS((int from));
95 #endif
96 static void redrawcmdprompt __ARGS((void));
97 static void cursorcmd __ARGS((void));
98 static int ccheck_abbr __ARGS((int));
99 static int nextwild __ARGS((expand_T *xp, int type, int options));
100 static void escape_fname __ARGS((char_u **pp));
101 static int showmatches __ARGS((expand_T *xp, int wildmenu));
102 static void set_expand_context __ARGS((expand_T *xp));
103 static int ExpandFromContext __ARGS((expand_T *xp, char_u *, int *, char_u ***, int));
104 static int expand_showtail __ARGS((expand_T *xp));
105 #ifdef FEAT_CMDL_COMPL
106 static int expand_shellcmd __ARGS((char_u *filepat, int *num_file, char_u ***file, int flagsarg));
107 static int ExpandRTDir __ARGS((char_u *pat, int *num_file, char_u ***file, char *dirname));
108 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
109 static int ExpandUserDefined __ARGS((expand_T *xp, regmatch_T *regmatch, int *num_file, char_u ***file));
110 static int ExpandUserList __ARGS((expand_T *xp, int *num_file, char_u ***file));
111 # endif
112 #endif
113
114 #ifdef FEAT_CMDWIN
115 static int ex_window __ARGS((void));
116 #endif
117
118 /*
119 * getcmdline() - accept a command line starting with firstc.
120 *
121 * firstc == ':' get ":" command line.
122 * firstc == '/' or '?' get search pattern
123 * firstc == '=' get expression
124 * firstc == '@' get text for input() function
125 * firstc == '>' get text for debug mode
126 * firstc == NUL get text for :insert command
127 * firstc == -1 like NUL, and break on CTRL-C
128 *
129 * The line is collected in ccline.cmdbuff, which is reallocated to fit the
130 * command line.
131 *
132 * Careful: getcmdline() can be called recursively!
133 *
134 * Return pointer to allocated string if there is a commandline, NULL
135 * otherwise.
136 */
137 /*ARGSUSED*/
138 char_u *
139 getcmdline(firstc, count, indent)
140 int firstc;
141 long count; /* only used for incremental search */
142 int indent; /* indent for inside conditionals */
143 {
144 int c;
145 int i;
146 int j;
147 int gotesc = FALSE; /* TRUE when <ESC> just typed */
148 int do_abbr; /* when TRUE check for abbr. */
149 #ifdef FEAT_CMDHIST
150 char_u *lookfor = NULL; /* string to match */
151 int hiscnt; /* current history line in use */
152 int histype; /* history type to be used */
153 #endif
154 #ifdef FEAT_SEARCH_EXTRA
155 pos_T old_cursor;
156 colnr_T old_curswant;
157 colnr_T old_leftcol;
158 linenr_T old_topline;
159 # ifdef FEAT_DIFF
160 int old_topfill;
161 # endif
162 linenr_T old_botline;
163 int did_incsearch = FALSE;
164 int incsearch_postponed = FALSE;
165 #endif
166 int did_wild_list = FALSE; /* did wild_list() recently */
167 int wim_index = 0; /* index in wim_flags[] */
168 int res;
169 int save_msg_scroll = msg_scroll;
170 int save_State = State; /* remember State when called */
171 int some_key_typed = FALSE; /* one of the keys was typed */
172 #ifdef FEAT_MOUSE
173 /* mouse drag and release events are ignored, unless they are
174 * preceded with a mouse down event */
175 int ignore_drag_release = TRUE;
176 #endif
177 #ifdef FEAT_EVAL
178 int break_ctrl_c = FALSE;
179 #endif
180 expand_T xpc;
181 long *b_im_ptr = NULL;
182 #if defined(FEAT_WILDMENU) || defined(FEAT_EVAL) || defined(FEAT_SEARCH_EXTRA)
183 /* Everything that may work recursively should save and restore the
184 * current command line in save_ccline. That includes update_screen(), a
185 * custom status line may invoke ":normal". */
186 struct cmdline_info save_ccline;
187 #endif
188
189 #ifdef FEAT_SNIFF
190 want_sniff_request = 0;
191 #endif
192 #ifdef FEAT_EVAL
193 if (firstc == -1)
194 {
195 firstc = NUL;
196 break_ctrl_c = TRUE;
197 }
198 #endif
199 #ifdef FEAT_RIGHTLEFT
200 /* start without Hebrew mapping for a command line */
201 if (firstc == ':' || firstc == '=' || firstc == '>')
202 cmd_hkmap = 0;
203 #endif
204
205 ccline.overstrike = FALSE; /* always start in insert mode */
206 #ifdef FEAT_SEARCH_EXTRA
207 old_cursor = curwin->w_cursor; /* needs to be restored later */
208 old_curswant = curwin->w_curswant;
209 old_leftcol = curwin->w_leftcol;
210 old_topline = curwin->w_topline;
211 # ifdef FEAT_DIFF
212 old_topfill = curwin->w_topfill;
213 # endif
214 old_botline = curwin->w_botline;
215 #endif
216
217 /*
218 * set some variables for redrawcmd()
219 */
220 ccline.cmdfirstc = (firstc == '@' ? 0 : firstc);
221 ccline.cmdindent = (firstc > 0 ? indent : 0);
222
223 /* alloc initial ccline.cmdbuff */
224 alloc_cmdbuff(exmode_active ? 250 : indent + 1);
225 if (ccline.cmdbuff == NULL)
226 return NULL; /* out of memory */
227 ccline.cmdlen = ccline.cmdpos = 0;
228 ccline.cmdbuff[0] = NUL;
229
230 /* autoindent for :insert and :append */
231 if (firstc <= 0)
232 {
233 copy_spaces(ccline.cmdbuff, indent);
234 ccline.cmdbuff[indent] = NUL;
235 ccline.cmdpos = indent;
236 ccline.cmdspos = indent;
237 ccline.cmdlen = indent;
238 }
239
240 ExpandInit(&xpc);
241
242 #ifdef FEAT_RIGHTLEFT
243 if (curwin->w_p_rl && *curwin->w_p_rlc == 's'
244 && (firstc == '/' || firstc == '?'))
245 cmdmsg_rl = TRUE;
246 else
247 cmdmsg_rl = FALSE;
248 #endif
249
250 redir_off = TRUE; /* don't redirect the typed command */
251 if (!cmd_silent)
252 {
253 i = msg_scrolled;
254 msg_scrolled = 0; /* avoid wait_return message */
255 gotocmdline(TRUE);
256 msg_scrolled += i;
257 redrawcmdprompt(); /* draw prompt or indent */
258 set_cmdspos();
259 }
260 xpc.xp_context = EXPAND_NOTHING;
261 xpc.xp_backslash = XP_BS_NONE;
262 #ifndef BACKSLASH_IN_FILENAME
263 xpc.xp_shell = FALSE;
264 #endif
265
266 #if defined(FEAT_EVAL)
267 if (ccline.input_fn)
268 {
269 xpc.xp_context = ccline.xp_context;
270 xpc.xp_pattern = ccline.cmdbuff;
271 # if defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)
272 xpc.xp_arg = ccline.xp_arg;
273 # endif
274 }
275 #endif
276
277 /*
278 * Avoid scrolling when called by a recursive do_cmdline(), e.g. when
279 * doing ":@0" when register 0 doesn't contain a CR.
280 */
281 msg_scroll = FALSE;
282
283 State = CMDLINE;
284
285 if (firstc == '/' || firstc == '?' || firstc == '@')
286 {
287 /* Use ":lmap" mappings for search pattern and input(). */
288 if (curbuf->b_p_imsearch == B_IMODE_USE_INSERT)
289 b_im_ptr = &curbuf->b_p_iminsert;
290 else
291 b_im_ptr = &curbuf->b_p_imsearch;
292 if (*b_im_ptr == B_IMODE_LMAP)
293 State |= LANGMAP;
294 #ifdef USE_IM_CONTROL
295 im_set_active(*b_im_ptr == B_IMODE_IM);
296 #endif
297 }
298 #ifdef USE_IM_CONTROL
299 else if (p_imcmdline)
300 im_set_active(TRUE);
301 #endif
302
303 #ifdef FEAT_MOUSE
304 setmouse();
305 #endif
306 #ifdef CURSOR_SHAPE
307 ui_cursor_shape(); /* may show different cursor shape */
308 #endif
309
310 /* When inside an autocommand for writing "exiting" may be set and
311 * terminal mode set to cooked. Need to set raw mode here then. */
312 settmode(TMODE_RAW);
313
314 #ifdef FEAT_CMDHIST
315 init_history();
316 hiscnt = hislen; /* set hiscnt to impossible history value */
317 histype = hist_char2type(firstc);
318 #endif
319
320 #ifdef FEAT_DIGRAPHS
321 do_digraph(-1); /* init digraph typahead */
322 #endif
323
324 /*
325 * Collect the command string, handling editing keys.
326 */
327 for (;;)
328 {
329 redir_off = TRUE; /* Don't redirect the typed command.
330 Repeated, because a ":redir" inside
331 completion may switch it on. */
332 #ifdef USE_ON_FLY_SCROLL
333 dont_scroll = FALSE; /* allow scrolling here */
334 #endif
335 quit_more = FALSE; /* reset after CTRL-D which had a more-prompt */
336
337 cursorcmd(); /* set the cursor on the right spot */
338 c = safe_vgetc();
339 if (KeyTyped)
340 {
341 some_key_typed = TRUE;
342 #ifdef FEAT_RIGHTLEFT
343 if (cmd_hkmap)
344 c = hkmap(c);
345 # ifdef FEAT_FKMAP
346 if (cmd_fkmap)
347 c = cmdl_fkmap(c);
348 # endif
349 if (cmdmsg_rl && !KeyStuffed)
350 {
351 /* Invert horizontal movements and operations. Only when
352 * typed by the user directly, not when the result of a
353 * mapping. */
354 switch (c)
355 {
356 case K_RIGHT: c = K_LEFT; break;
357 case K_S_RIGHT: c = K_S_LEFT; break;
358 case K_C_RIGHT: c = K_C_LEFT; break;
359 case K_LEFT: c = K_RIGHT; break;
360 case K_S_LEFT: c = K_S_RIGHT; break;
361 case K_C_LEFT: c = K_C_RIGHT; break;
362 }
363 }
364 #endif
365 }
366
367 /*
368 * Ignore got_int when CTRL-C was typed here.
369 * Don't ignore it in :global, we really need to break then, e.g., for
370 * ":g/pat/normal /pat" (without the <CR>).
371 * Don't ignore it for the input() function.
372 */
373 if ((c == Ctrl_C
374 #ifdef UNIX
375 || c == intr_char
376 #endif
377 )
378 #if defined(FEAT_EVAL) || defined(FEAT_CRYPT)
379 && firstc != '@'
380 #endif
381 #ifdef FEAT_EVAL
382 && !break_ctrl_c
383 #endif
384 && !global_busy)
385 got_int = FALSE;
386
387 #ifdef FEAT_CMDHIST
388 /* free old command line when finished moving around in the history
389 * list */
390 if (lookfor != NULL
391 && c != K_S_DOWN && c != K_S_UP
392 && c != K_DOWN && c != K_UP
393 && c != K_PAGEDOWN && c != K_PAGEUP
394 && c != K_KPAGEDOWN && c != K_KPAGEUP
395 && c != K_LEFT && c != K_RIGHT
396 && (xpc.xp_numfiles > 0 || (c != Ctrl_P && c != Ctrl_N)))
397 {
398 vim_free(lookfor);
399 lookfor = NULL;
400 }
401 #endif
402
403 /*
404 * <S-Tab> works like CTRL-P (unless 'wc' is <S-Tab>).
405 */
406 if (c != p_wc && c == K_S_TAB && xpc.xp_numfiles != -1)
407 c = Ctrl_P;
408
409 #ifdef FEAT_WILDMENU
410 /* Special translations for 'wildmenu' */
411 if (did_wild_list && p_wmnu)
412 {
413 if (c == K_LEFT)
414 c = Ctrl_P;
415 else if (c == K_RIGHT)
416 c = Ctrl_N;
417 }
418 /* Hitting CR after "emenu Name.": complete submenu */
419 if (xpc.xp_context == EXPAND_MENUNAMES && p_wmnu
420 && ccline.cmdpos > 1
421 && ccline.cmdbuff[ccline.cmdpos - 1] == '.'
422 && ccline.cmdbuff[ccline.cmdpos - 2] != '\\'
423 && (c == '\n' || c == '\r' || c == K_KENTER))
424 c = K_DOWN;
425 #endif
426
427 /* free expanded names when finished walking through matches */
428 if (xpc.xp_numfiles != -1
429 && !(c == p_wc && KeyTyped) && c != p_wcm
430 && c != Ctrl_N && c != Ctrl_P && c != Ctrl_A
431 && c != Ctrl_L)
432 {
433 (void)ExpandOne(&xpc, NULL, NULL, 0, WILD_FREE);
434 did_wild_list = FALSE;
435 #ifdef FEAT_WILDMENU
436 if (!p_wmnu || (c != K_UP && c != K_DOWN))
437 #endif
438 xpc.xp_context = EXPAND_NOTHING;
439 wim_index = 0;
440 #ifdef FEAT_WILDMENU
441 if (p_wmnu && wild_menu_showing != 0)
442 {
443 int skt = KeyTyped;
444 int old_RedrawingDisabled = RedrawingDisabled;
445
446 if (ccline.input_fn)
447 RedrawingDisabled = 0;
448
449 if (wild_menu_showing == WM_SCROLLED)
450 {
451 /* Entered command line, move it up */
452 cmdline_row--;
453 redrawcmd();
454 }
455 else if (save_p_ls != -1)
456 {
457 /* restore 'laststatus' and 'winminheight' */
458 p_ls = save_p_ls;
459 p_wmh = save_p_wmh;
460 last_status(FALSE);
461 save_cmdline(&save_ccline);
462 update_screen(VALID); /* redraw the screen NOW */
463 restore_cmdline(&save_ccline);
464 redrawcmd();
465 save_p_ls = -1;
466 }
467 else
468 {
469 # ifdef FEAT_VERTSPLIT
470 win_redraw_last_status(topframe);
471 # else
472 lastwin->w_redr_status = TRUE;
473 # endif
474 redraw_statuslines();
475 }
476 KeyTyped = skt;
477 wild_menu_showing = 0;
478 if (ccline.input_fn)
479 RedrawingDisabled = old_RedrawingDisabled;
480 }
481 #endif
482 }
483
484 #ifdef FEAT_WILDMENU
485 /* Special translations for 'wildmenu' */
486 if (xpc.xp_context == EXPAND_MENUNAMES && p_wmnu)
487 {
488 /* Hitting <Down> after "emenu Name.": complete submenu */
489 if (c == K_DOWN && ccline.cmdpos > 0
490 && ccline.cmdbuff[ccline.cmdpos - 1] == '.')
491 c = p_wc;
492 else if (c == K_UP)
493 {
494 /* Hitting <Up>: Remove one submenu name in front of the
495 * cursor */
496 int found = FALSE;
497
498 j = (int)(xpc.xp_pattern - ccline.cmdbuff);
499 i = 0;
500 while (--j > 0)
501 {
502 /* check for start of menu name */
503 if (ccline.cmdbuff[j] == ' '
504 && ccline.cmdbuff[j - 1] != '\\')
505 {
506 i = j + 1;
507 break;
508 }
509 /* check for start of submenu name */
510 if (ccline.cmdbuff[j] == '.'
511 && ccline.cmdbuff[j - 1] != '\\')
512 {
513 if (found)
514 {
515 i = j + 1;
516 break;
517 }
518 else
519 found = TRUE;
520 }
521 }
522 if (i > 0)
523 cmdline_del(i);
524 c = p_wc;
525 xpc.xp_context = EXPAND_NOTHING;
526 }
527 }
528 if ((xpc.xp_context == EXPAND_FILES
529 || xpc.xp_context == EXPAND_SHELLCMD) && p_wmnu)
530 {
531 char_u upseg[5];
532
533 upseg[0] = PATHSEP;
534 upseg[1] = '.';
535 upseg[2] = '.';
536 upseg[3] = PATHSEP;
537 upseg[4] = NUL;
538
539 if (c == K_DOWN
540 && ccline.cmdpos > 0
541 && ccline.cmdbuff[ccline.cmdpos - 1] == PATHSEP
542 && (ccline.cmdpos < 3
543 || ccline.cmdbuff[ccline.cmdpos - 2] != '.'
544 || ccline.cmdbuff[ccline.cmdpos - 3] != '.'))
545 {
546 /* go down a directory */
547 c = p_wc;
548 }
549 else if (STRNCMP(xpc.xp_pattern, upseg + 1, 3) == 0 && c == K_DOWN)
550 {
551 /* If in a direct ancestor, strip off one ../ to go down */
552 int found = FALSE;
553
554 j = ccline.cmdpos;
555 i = (int)(xpc.xp_pattern - ccline.cmdbuff);
556 while (--j > i)
557 {
558 #ifdef FEAT_MBYTE
559 if (has_mbyte)
560 j -= (*mb_head_off)(ccline.cmdbuff, ccline.cmdbuff + j);
561 #endif
562 if (vim_ispathsep(ccline.cmdbuff[j]))
563 {
564 found = TRUE;
565 break;
566 }
567 }
568 if (found
569 && ccline.cmdbuff[j - 1] == '.'
570 && ccline.cmdbuff[j - 2] == '.'
571 && (vim_ispathsep(ccline.cmdbuff[j - 3]) || j == i + 2))
572 {
573 cmdline_del(j - 2);
574 c = p_wc;
575 }
576 }
577 else if (c == K_UP)
578 {
579 /* go up a directory */
580 int found = FALSE;
581
582 j = ccline.cmdpos - 1;
583 i = (int)(xpc.xp_pattern - ccline.cmdbuff);
584 while (--j > i)
585 {
586 #ifdef FEAT_MBYTE
587 if (has_mbyte)
588 j -= (*mb_head_off)(ccline.cmdbuff, ccline.cmdbuff + j);
589 #endif
590 if (vim_ispathsep(ccline.cmdbuff[j])
591 #ifdef BACKSLASH_IN_FILENAME
592 && vim_strchr(" *?[{`$%#", ccline.cmdbuff[j + 1])
593 == NULL
594 #endif
595 )
596 {
597 if (found)
598 {
599 i = j + 1;
600 break;
601 }
602 else
603 found = TRUE;
604 }
605 }
606
607 if (!found)
608 j = i;
609 else if (STRNCMP(ccline.cmdbuff + j, upseg, 4) == 0)
610 j += 4;
611 else if (STRNCMP(ccline.cmdbuff + j, upseg + 1, 3) == 0
612 && j == i)
613 j += 3;
614 else
615 j = 0;
616 if (j > 0)
617 {
618 /* TODO this is only for DOS/UNIX systems - need to put in
619 * machine-specific stuff here and in upseg init */
620 cmdline_del(j);
621 put_on_cmdline(upseg + 1, 3, FALSE);
622 }
623 else if (ccline.cmdpos > i)
624 cmdline_del(i);
625 c = p_wc;
626 }
627 }
628 #if 0 /* If enabled <Down> on a file takes you _completely_ out of wildmenu */
629 if (p_wmnu
630 && (xpc.xp_context == EXPAND_FILES
631 || xpc.xp_context == EXPAND_MENUNAMES)
632 && (c == K_UP || c == K_DOWN))
633 xpc.xp_context = EXPAND_NOTHING;
634 #endif
635
636 #endif /* FEAT_WILDMENU */
637
638 /* CTRL-\ CTRL-N goes to Normal mode, CTRL-\ CTRL-G goes to Insert
639 * mode when 'insertmode' is set, CTRL-\ e prompts for an expression. */
640 if (c == Ctrl_BSL)
641 {
642 ++no_mapping;
643 ++allow_keys;
644 c = plain_vgetc();
645 --no_mapping;
646 --allow_keys;
647 /* CTRL-\ e doesn't work when obtaining an expression. */
648 if (c != Ctrl_N && c != Ctrl_G
649 && (c != 'e' || ccline.cmdfirstc == '='))
650 {
651 vungetc(c);
652 c = Ctrl_BSL;
653 }
654 #ifdef FEAT_EVAL
655 else if (c == 'e')
656 {
657 char_u *p = NULL;
658
659 /*
660 * Replace the command line with the result of an expression.
661 * Need to save and restore the current command line, to be
662 * able to enter a new one...
663 */
664 if (ccline.cmdpos == ccline.cmdlen)
665 new_cmdpos = 99999; /* keep it at the end */
666 else
667 new_cmdpos = ccline.cmdpos;
668
669 save_cmdline(&save_ccline);
670 c = get_expr_register();
671 restore_cmdline(&save_ccline);
672 if (c == '=')
673 {
674 /* Need to save and restore ccline. And set "textlock"
675 * to avoid nasty things like going to another buffer when
676 * evaluating an expression. */
677 save_cmdline(&save_ccline);
678 ++textlock;
679 p = get_expr_line();
680 --textlock;
681 restore_cmdline(&save_ccline);
682
683 if (p != NULL && realloc_cmdbuff((int)STRLEN(p) + 1) == OK)
684 {
685 ccline.cmdlen = (int)STRLEN(p);
686 STRCPY(ccline.cmdbuff, p);
687 vim_free(p);
688
689 /* Restore the cursor or use the position set with
690 * set_cmdline_pos(). */
691 if (new_cmdpos > ccline.cmdlen)
692 ccline.cmdpos = ccline.cmdlen;
693 else
694 ccline.cmdpos = new_cmdpos;
695
696 KeyTyped = FALSE; /* Don't do p_wc completion. */
697 redrawcmd();
698 goto cmdline_changed;
699 }
700 }
701 beep_flush();
702 c = ESC;
703 }
704 #endif
705 else
706 {
707 if (c == Ctrl_G && p_im && restart_edit == 0)
708 restart_edit = 'a';
709 gotesc = TRUE; /* will free ccline.cmdbuff after putting it
710 in history */
711 goto returncmd; /* back to Normal mode */
712 }
713 }
714
715 #ifdef FEAT_CMDWIN
716 if (c == cedit_key || c == K_CMDWIN)
717 {
718 /*
719 * Open a window to edit the command line (and history).
720 */
721 c = ex_window();
722 some_key_typed = TRUE;
723 }
724 # ifdef FEAT_DIGRAPHS
725 else
726 # endif
727 #endif
728 #ifdef FEAT_DIGRAPHS
729 c = do_digraph(c);
730 #endif
731
732 if (c == '\n' || c == '\r' || c == K_KENTER || (c == ESC
733 && (!KeyTyped || vim_strchr(p_cpo, CPO_ESC) != NULL)))
734 {
735 /* In Ex mode a backslash escapes a newline. */
736 if (exmode_active
737 && c != ESC
738 && ccline.cmdpos == ccline.cmdlen
739 && ccline.cmdpos > 0
740 && ccline.cmdbuff[ccline.cmdpos - 1] == '\\')
741 {
742 if (c == K_KENTER)
743 c = '\n';
744 }
745 else
746 {
747 gotesc = FALSE; /* Might have typed ESC previously, don't
748 truncate the cmdline now. */
749 if (ccheck_abbr(c + ABBR_OFF))
750 goto cmdline_changed;
751 if (!cmd_silent)
752 {
753 windgoto(msg_row, 0);
754 out_flush();
755 }
756 break;
757 }
758 }
759
760 /*
761 * Completion for 'wildchar' or 'wildcharm' key.
762 * - hitting <ESC> twice means: abandon command line.
763 * - wildcard expansion is only done when the 'wildchar' key is really
764 * typed, not when it comes from a macro
765 */
766 if ((c == p_wc && !gotesc && KeyTyped) || c == p_wcm)
767 {
768 if (xpc.xp_numfiles > 0) /* typed p_wc at least twice */
769 {
770 /* if 'wildmode' contains "list" may still need to list */
771 if (xpc.xp_numfiles > 1
772 && !did_wild_list
773 && (wim_flags[wim_index] & WIM_LIST))
774 {
775 (void)showmatches(&xpc, FALSE);
776 redrawcmd();
777 did_wild_list = TRUE;
778 }
779 if (wim_flags[wim_index] & WIM_LONGEST)
780 res = nextwild(&xpc, WILD_LONGEST, WILD_NO_BEEP);
781 else if (wim_flags[wim_index] & WIM_FULL)
782 res = nextwild(&xpc, WILD_NEXT, WILD_NO_BEEP);
783 else
784 res = OK; /* don't insert 'wildchar' now */
785 }
786 else /* typed p_wc first time */
787 {
788 wim_index = 0;
789 j = ccline.cmdpos;
790 /* if 'wildmode' first contains "longest", get longest
791 * common part */
792 if (wim_flags[0] & WIM_LONGEST)
793 res = nextwild(&xpc, WILD_LONGEST, WILD_NO_BEEP);
794 else
795 res = nextwild(&xpc, WILD_EXPAND_KEEP, WILD_NO_BEEP);
796
797 /* if interrupted while completing, behave like it failed */
798 if (got_int)
799 {
800 (void)vpeekc(); /* remove <C-C> from input stream */
801 got_int = FALSE; /* don't abandon the command line */
802 (void)ExpandOne(&xpc, NULL, NULL, 0, WILD_FREE);
803 #ifdef FEAT_WILDMENU
804 xpc.xp_context = EXPAND_NOTHING;
805 #endif
806 goto cmdline_changed;
807 }
808
809 /* when more than one match, and 'wildmode' first contains
810 * "list", or no change and 'wildmode' contains "longest,list",
811 * list all matches */
812 if (res == OK && xpc.xp_numfiles > 1)
813 {
814 /* a "longest" that didn't do anything is skipped (but not
815 * "list:longest") */
816 if (wim_flags[0] == WIM_LONGEST && ccline.cmdpos == j)
817 wim_index = 1;
818 if ((wim_flags[wim_index] & WIM_LIST)
819 #ifdef FEAT_WILDMENU
820 || (p_wmnu && (wim_flags[wim_index] & WIM_FULL) != 0)
821 #endif
822 )
823 {
824 if (!(wim_flags[0] & WIM_LONGEST))
825 {
826 #ifdef FEAT_WILDMENU
827 int p_wmnu_save = p_wmnu;
828 p_wmnu = 0;
829 #endif
830 nextwild(&xpc, WILD_PREV, 0); /* remove match */
831 #ifdef FEAT_WILDMENU
832 p_wmnu = p_wmnu_save;
833 #endif
834 }
835 #ifdef FEAT_WILDMENU
836 (void)showmatches(&xpc, p_wmnu
837 && ((wim_flags[wim_index] & WIM_LIST) == 0));
838 #else
839 (void)showmatches(&xpc, FALSE);
840 #endif
841 redrawcmd();
842 did_wild_list = TRUE;
843 if (wim_flags[wim_index] & WIM_LONGEST)
844 nextwild(&xpc, WILD_LONGEST, WILD_NO_BEEP);
845 else if (wim_flags[wim_index] & WIM_FULL)
846 nextwild(&xpc, WILD_NEXT, WILD_NO_BEEP);
847 }
848 else
849 vim_beep();
850 }
851 #ifdef FEAT_WILDMENU
852 else if (xpc.xp_numfiles == -1)
853 xpc.xp_context = EXPAND_NOTHING;
854 #endif
855 }
856 if (wim_index < 3)
857 ++wim_index;
858 if (c == ESC)
859 gotesc = TRUE;
860 if (res == OK)
861 goto cmdline_changed;
862 }
863
864 gotesc = FALSE;
865
866 /* <S-Tab> goes to last match, in a clumsy way */
867 if (c == K_S_TAB && KeyTyped)
868 {
869 if (nextwild(&xpc, WILD_EXPAND_KEEP, 0) == OK
870 && nextwild(&xpc, WILD_PREV, 0) == OK
871 && nextwild(&xpc, WILD_PREV, 0) == OK)
872 goto cmdline_changed;
873 }
874
875 if (c == NUL || c == K_ZERO) /* NUL is stored as NL */
876 c = NL;
877
878 do_abbr = TRUE; /* default: check for abbreviation */
879
880 /*
881 * Big switch for a typed command line character.
882 */
883 switch (c)
884 {
885 case K_BS:
886 case Ctrl_H:
887 case K_DEL:
888 case K_KDEL:
889 case Ctrl_W:
890 #ifdef FEAT_FKMAP
891 if (cmd_fkmap && c == K_BS)
892 c = K_DEL;
893 #endif
894 if (c == K_KDEL)
895 c = K_DEL;
896
897 /*
898 * delete current character is the same as backspace on next
899 * character, except at end of line
900 */
901 if (c == K_DEL && ccline.cmdpos != ccline.cmdlen)
902 ++ccline.cmdpos;
903 #ifdef FEAT_MBYTE
904 if (has_mbyte && c == K_DEL)
905 ccline.cmdpos += mb_off_next(ccline.cmdbuff,
906 ccline.cmdbuff + ccline.cmdpos);
907 #endif
908 if (ccline.cmdpos > 0)
909 {
910 char_u *p;
911
912 j = ccline.cmdpos;
913 p = ccline.cmdbuff + j;
914 #ifdef FEAT_MBYTE
915 if (has_mbyte)
916 {
917 p = mb_prevptr(ccline.cmdbuff, p);
918 if (c == Ctrl_W)
919 {
920 while (p > ccline.cmdbuff && vim_isspace(*p))
921 p = mb_prevptr(ccline.cmdbuff, p);
922 i = mb_get_class(p);
923 while (p > ccline.cmdbuff && mb_get_class(p) == i)
924 p = mb_prevptr(ccline.cmdbuff, p);
925 if (mb_get_class(p) != i)
926 p += (*mb_ptr2len)(p);
927 }
928 }
929 else
930 #endif
931 if (c == Ctrl_W)
932 {
933 while (p > ccline.cmdbuff && vim_isspace(p[-1]))
934 --p;
935 i = vim_iswordc(p[-1]);
936 while (p > ccline.cmdbuff && !vim_isspace(p[-1])
937 && vim_iswordc(p[-1]) == i)
938 --p;
939 }
940 else
941 --p;
942 ccline.cmdpos = (int)(p - ccline.cmdbuff);
943 ccline.cmdlen -= j - ccline.cmdpos;
944 i = ccline.cmdpos;
945 while (i < ccline.cmdlen)
946 ccline.cmdbuff[i++] = ccline.cmdbuff[j++];
947
948 /* Truncate at the end, required for multi-byte chars. */
949 ccline.cmdbuff[ccline.cmdlen] = NUL;
950 redrawcmd();
951 }
952 else if (ccline.cmdlen == 0 && c != Ctrl_W
953 && ccline.cmdprompt == NULL && indent == 0)
954 {
955 /* In ex and debug mode it doesn't make sense to return. */
956 if (exmode_active
957 #ifdef FEAT_EVAL
958 || ccline.cmdfirstc == '>'
959 #endif
960 )
961 goto cmdline_not_changed;
962
963 vim_free(ccline.cmdbuff); /* no commandline to return */
964 ccline.cmdbuff = NULL;
965 if (!cmd_silent)
966 {
967 #ifdef FEAT_RIGHTLEFT
968 if (cmdmsg_rl)
969 msg_col = Columns;
970 else
971 #endif
972 msg_col = 0;
973 msg_putchar(' '); /* delete ':' */
974 }
975 redraw_cmdline = TRUE;
976 goto returncmd; /* back to cmd mode */
977 }
978 goto cmdline_changed;
979
980 case K_INS:
981 case K_KINS:
982 #ifdef FEAT_FKMAP
983 /* if Farsi mode set, we are in reverse insert mode -
984 Do not change the mode */
985 if (cmd_fkmap)
986 beep_flush();
987 else
988 #endif
989 ccline.overstrike = !ccline.overstrike;
990 #ifdef CURSOR_SHAPE
991 ui_cursor_shape(); /* may show different cursor shape */
992 #endif
993 goto cmdline_not_changed;
994
995 case Ctrl_HAT:
996 if (map_to_exists_mode((char_u *)"", LANGMAP, FALSE))
997 {
998 /* ":lmap" mappings exists, toggle use of mappings. */
999 State ^= LANGMAP;
1000 #ifdef USE_IM_CONTROL
1001 im_set_active(FALSE); /* Disable input method */
1002 #endif
1003 if (b_im_ptr != NULL)
1004 {
1005 if (State & LANGMAP)
1006 *b_im_ptr = B_IMODE_LMAP;
1007 else
1008 *b_im_ptr = B_IMODE_NONE;
1009 }
1010 }
1011 #ifdef USE_IM_CONTROL
1012 else
1013 {
1014 /* There are no ":lmap" mappings, toggle IM. When
1015 * 'imdisable' is set don't try getting the status, it's
1016 * always off. */
1017 if ((p_imdisable && b_im_ptr != NULL)
1018 ? *b_im_ptr == B_IMODE_IM : im_get_status())
1019 {
1020 im_set_active(FALSE); /* Disable input method */
1021 if (b_im_ptr != NULL)
1022 *b_im_ptr = B_IMODE_NONE;
1023 }
1024 else
1025 {
1026 im_set_active(TRUE); /* Enable input method */
1027 if (b_im_ptr != NULL)
1028 *b_im_ptr = B_IMODE_IM;
1029 }
1030 }
1031 #endif
1032 if (b_im_ptr != NULL)
1033 {
1034 if (b_im_ptr == &curbuf->b_p_iminsert)
1035 set_iminsert_global();
1036 else
1037 set_imsearch_global();
1038 }
1039 #ifdef CURSOR_SHAPE
1040 ui_cursor_shape(); /* may show different cursor shape */
1041 #endif
1042 #if defined(FEAT_WINDOWS) && defined(FEAT_KEYMAP)
1043 /* Show/unshow value of 'keymap' in status lines later. */
1044 status_redraw_curbuf();
1045 #endif
1046 goto cmdline_not_changed;
1047
1048 /* case '@': only in very old vi */
1049 case Ctrl_U:
1050 /* delete all characters left of the cursor */
1051 j = ccline.cmdpos;
1052 ccline.cmdlen -= j;
1053 i = ccline.cmdpos = 0;
1054 while (i < ccline.cmdlen)
1055 ccline.cmdbuff[i++] = ccline.cmdbuff[j++];
1056 /* Truncate at the end, required for multi-byte chars. */
1057 ccline.cmdbuff[ccline.cmdlen] = NUL;
1058 redrawcmd();
1059 goto cmdline_changed;
1060
1061 #ifdef FEAT_CLIPBOARD
1062 case Ctrl_Y:
1063 /* Copy the modeless selection, if there is one. */
1064 if (clip_star.state != SELECT_CLEARED)
1065 {
1066 if (clip_star.state == SELECT_DONE)
1067 clip_copy_modeless_selection(TRUE);
1068 goto cmdline_not_changed;
1069 }
1070 break;
1071 #endif
1072
1073 case ESC: /* get here if p_wc != ESC or when ESC typed twice */
1074 case Ctrl_C:
1075 /* In exmode it doesn't make sense to return. Except when
1076 * ":normal" runs out of characters. */
1077 if (exmode_active
1078 #ifdef FEAT_EX_EXTRA
1079 && (ex_normal_busy == 0 || typebuf.tb_len > 0)
1080 #endif
1081 )
1082 goto cmdline_not_changed;
1083
1084 gotesc = TRUE; /* will free ccline.cmdbuff after
1085 putting it in history */
1086 goto returncmd; /* back to cmd mode */
1087
1088 case Ctrl_R: /* insert register */
1089 #ifdef USE_ON_FLY_SCROLL
1090 dont_scroll = TRUE; /* disallow scrolling here */
1091 #endif
1092 putcmdline('"', TRUE);
1093 ++no_mapping;
1094 i = c = plain_vgetc(); /* CTRL-R <char> */
1095 if (i == Ctrl_O)
1096 i = Ctrl_R; /* CTRL-R CTRL-O == CTRL-R CTRL-R */
1097 if (i == Ctrl_R)
1098 c = plain_vgetc(); /* CTRL-R CTRL-R <char> */
1099 --no_mapping;
1100 #ifdef FEAT_EVAL
1101 /*
1102 * Insert the result of an expression.
1103 * Need to save the current command line, to be able to enter
1104 * a new one...
1105 */
1106 new_cmdpos = -1;
1107 if (c == '=')
1108 {
1109 if (ccline.cmdfirstc == '=')/* can't do this recursively */
1110 {
1111 beep_flush();
1112 c = ESC;
1113 }
1114 else
1115 {
1116 save_cmdline(&save_ccline);
1117 c = get_expr_register();
1118 restore_cmdline(&save_ccline);
1119 }
1120 }
1121 #endif
1122 if (c != ESC) /* use ESC to cancel inserting register */
1123 {
1124 cmdline_paste(c, i == Ctrl_R, FALSE);
1125
1126 #ifdef FEAT_EVAL
1127 /* When there was a serious error abort getting the
1128 * command line. */
1129 if (aborting())
1130 {
1131 gotesc = TRUE; /* will free ccline.cmdbuff after
1132 putting it in history */
1133 goto returncmd; /* back to cmd mode */
1134 }
1135 #endif
1136 KeyTyped = FALSE; /* Don't do p_wc completion. */
1137 #ifdef FEAT_EVAL
1138 if (new_cmdpos >= 0)
1139 {
1140 /* set_cmdline_pos() was used */
1141 if (new_cmdpos > ccline.cmdlen)
1142 ccline.cmdpos = ccline.cmdlen;
1143 else
1144 ccline.cmdpos = new_cmdpos;
1145 }
1146 #endif
1147 }
1148 redrawcmd();
1149 goto cmdline_changed;
1150
1151 case Ctrl_D:
1152 if (showmatches(&xpc, FALSE) == EXPAND_NOTHING)
1153 break; /* Use ^D as normal char instead */
1154
1155 redrawcmd();
1156 continue; /* don't do incremental search now */
1157
1158 case K_RIGHT:
1159 case K_S_RIGHT:
1160 case K_C_RIGHT:
1161 do
1162 {
1163 if (ccline.cmdpos >= ccline.cmdlen)
1164 break;
1165 i = cmdline_charsize(ccline.cmdpos);
1166 if (KeyTyped && ccline.cmdspos + i >= Columns * Rows)
1167 break;
1168 ccline.cmdspos += i;
1169 #ifdef FEAT_MBYTE
1170 if (has_mbyte)
1171 ccline.cmdpos += (*mb_ptr2len)(ccline.cmdbuff
1172 + ccline.cmdpos);
1173 else
1174 #endif
1175 ++ccline.cmdpos;
1176 }
1177 while ((c == K_S_RIGHT || c == K_C_RIGHT
1178 || (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL)))
1179 && ccline.cmdbuff[ccline.cmdpos] != ' ');
1180 #ifdef FEAT_MBYTE
1181 if (has_mbyte)
1182 set_cmdspos_cursor();
1183 #endif
1184 goto cmdline_not_changed;
1185
1186 case K_LEFT:
1187 case K_S_LEFT:
1188 case K_C_LEFT:
1189 do
1190 {
1191 if (ccline.cmdpos == 0)
1192 break;
1193 --ccline.cmdpos;
1194 #ifdef FEAT_MBYTE
1195 if (has_mbyte) /* move to first byte of char */
1196 ccline.cmdpos -= (*mb_head_off)(ccline.cmdbuff,
1197 ccline.cmdbuff + ccline.cmdpos);
1198 #endif
1199 ccline.cmdspos -= cmdline_charsize(ccline.cmdpos);
1200 }
1201 while ((c == K_S_LEFT || c == K_C_LEFT
1202 || (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL)))
1203 && ccline.cmdbuff[ccline.cmdpos - 1] != ' ');
1204 #ifdef FEAT_MBYTE
1205 if (has_mbyte)
1206 set_cmdspos_cursor();
1207 #endif
1208 goto cmdline_not_changed;
1209
1210 case K_IGNORE:
1211 goto cmdline_not_changed; /* Ignore mouse */
1212
1213 #ifdef FEAT_GUI_W32
1214 /* On Win32 ignore <M-F4>, we get it when closing the window was
1215 * cancelled. */
1216 case K_F4:
1217 if (mod_mask == MOD_MASK_ALT)
1218 {
1219 redrawcmd(); /* somehow the cmdline is cleared */
1220 goto cmdline_not_changed;
1221 }
1222 break;
1223 #endif
1224
1225 #ifdef FEAT_MOUSE
1226 case K_MIDDLEDRAG:
1227 case K_MIDDLERELEASE:
1228 goto cmdline_not_changed; /* Ignore mouse */
1229
1230 case K_MIDDLEMOUSE:
1231 # ifdef FEAT_GUI
1232 /* When GUI is active, also paste when 'mouse' is empty */
1233 if (!gui.in_use)
1234 # endif
1235 if (!mouse_has(MOUSE_COMMAND))
1236 goto cmdline_not_changed; /* Ignore mouse */
1237 # ifdef FEAT_CLIPBOARD
1238 if (clip_star.available)
1239 cmdline_paste('*', TRUE, TRUE);
1240 else
1241 # endif
1242 cmdline_paste(0, TRUE, TRUE);
1243 redrawcmd();
1244 goto cmdline_changed;
1245
1246 # ifdef FEAT_DND
1247 case K_DROP:
1248 cmdline_paste('~', TRUE, FALSE);
1249 redrawcmd();
1250 goto cmdline_changed;
1251 # endif
1252
1253 case K_LEFTDRAG:
1254 case K_LEFTRELEASE:
1255 case K_RIGHTDRAG:
1256 case K_RIGHTRELEASE:
1257 /* Ignore drag and release events when the button-down wasn't
1258 * seen before. */
1259 if (ignore_drag_release)
1260 goto cmdline_not_changed;
1261 /* FALLTHROUGH */
1262 case K_LEFTMOUSE:
1263 case K_RIGHTMOUSE:
1264 if (c == K_LEFTRELEASE || c == K_RIGHTRELEASE)
1265 ignore_drag_release = TRUE;
1266 else
1267 ignore_drag_release = FALSE;
1268 # ifdef FEAT_GUI
1269 /* When GUI is active, also move when 'mouse' is empty */
1270 if (!gui.in_use)
1271 # endif
1272 if (!mouse_has(MOUSE_COMMAND))
1273 goto cmdline_not_changed; /* Ignore mouse */
1274 # ifdef FEAT_CLIPBOARD
1275 if (mouse_row < cmdline_row && clip_star.available)
1276 {
1277 int button, is_click, is_drag;
1278
1279 /*
1280 * Handle modeless selection.
1281 */
1282 button = get_mouse_button(KEY2TERMCAP1(c),
1283 &is_click, &is_drag);
1284 if (mouse_model_popup() && button == MOUSE_LEFT
1285 && (mod_mask & MOD_MASK_SHIFT))
1286 {
1287 /* Translate shift-left to right button. */
1288 button = MOUSE_RIGHT;
1289 mod_mask &= ~MOD_MASK_SHIFT;
1290 }
1291 clip_modeless(button, is_click, is_drag);
1292 goto cmdline_not_changed;
1293 }
1294 # endif
1295
1296 set_cmdspos();
1297 for (ccline.cmdpos = 0; ccline.cmdpos < ccline.cmdlen;
1298 ++ccline.cmdpos)
1299 {
1300 i = cmdline_charsize(ccline.cmdpos);
1301 if (mouse_row <= cmdline_row + ccline.cmdspos / Columns
1302 && mouse_col < ccline.cmdspos % Columns + i)
1303 break;
1304 # ifdef FEAT_MBYTE
1305 if (has_mbyte)
1306 {
1307 /* Count ">" for double-wide char that doesn't fit. */
1308 correct_cmdspos(ccline.cmdpos, i);
1309 ccline.cmdpos += (*mb_ptr2len)(ccline.cmdbuff
1310 + ccline.cmdpos) - 1;
1311 }
1312 # endif
1313 ccline.cmdspos += i;
1314 }
1315 goto cmdline_not_changed;
1316
1317 /* Mouse scroll wheel: ignored here */
1318 case K_MOUSEDOWN:
1319 case K_MOUSEUP:
1320 /* Alternate buttons ignored here */
1321 case K_X1MOUSE:
1322 case K_X1DRAG:
1323 case K_X1RELEASE:
1324 case K_X2MOUSE:
1325 case K_X2DRAG:
1326 case K_X2RELEASE:
1327 goto cmdline_not_changed;
1328
1329 #endif /* FEAT_MOUSE */
1330
1331 #ifdef FEAT_GUI
1332 case K_LEFTMOUSE_NM: /* mousefocus click, ignored */
1333 case K_LEFTRELEASE_NM:
1334 goto cmdline_not_changed;
1335
1336 case K_VER_SCROLLBAR:
1337 if (msg_scrolled == 0)
1338 {
1339 gui_do_scroll();
1340 redrawcmd();
1341 }
1342 goto cmdline_not_changed;
1343
1344 case K_HOR_SCROLLBAR:
1345 if (msg_scrolled == 0)
1346 {
1347 gui_do_horiz_scroll();
1348 redrawcmd();
1349 }
1350 goto cmdline_not_changed;
1351 #endif
1352 #ifdef FEAT_GUI_TABLINE
1353 case K_TABLINE:
1354 case K_TABMENU:
1355 /* Don't want to change any tabs here. Make sure the same tab
1356 * is still selected. */
1357 if (gui_use_tabline())
1358 gui_mch_set_curtab(tabpage_index(curtab));
1359 goto cmdline_not_changed;
1360 #endif
1361
1362 case K_SELECT: /* end of Select mode mapping - ignore */
1363 goto cmdline_not_changed;
1364
1365 case Ctrl_B: /* begin of command line */
1366 case K_HOME:
1367 case K_KHOME:
1368 case K_S_HOME:
1369 case K_C_HOME:
1370 ccline.cmdpos = 0;
1371 set_cmdspos();
1372 goto cmdline_not_changed;
1373
1374 case Ctrl_E: /* end of command line */
1375 case K_END:
1376 case K_KEND:
1377 case K_S_END:
1378 case K_C_END:
1379 ccline.cmdpos = ccline.cmdlen;
1380 set_cmdspos_cursor();
1381 goto cmdline_not_changed;
1382
1383 case Ctrl_A: /* all matches */
1384 if (nextwild(&xpc, WILD_ALL, 0) == FAIL)
1385 break;
1386 goto cmdline_changed;
1387
1388 case Ctrl_L:
1389 #ifdef FEAT_SEARCH_EXTRA
1390 if (p_is && !cmd_silent && (firstc == '/' || firstc == '?'))
1391 {
1392 /* Add a character from under the cursor for 'incsearch' */
1393 if (did_incsearch
1394 && !equalpos(curwin->w_cursor, old_cursor))
1395 {
1396 c = gchar_cursor();
1397 if (c != NUL)
1398 {
1399 if (c == firstc || vim_strchr((char_u *)(
1400 p_magic ? "\\^$.*[" : "\\^$"), c)
1401 != NULL)
1402 {
1403 /* put a backslash before special characters */
1404 stuffcharReadbuff(c);
1405 c = '\\';
1406 }
1407 break;
1408 }
1409 }
1410 goto cmdline_not_changed;
1411 }
1412 #endif
1413
1414 /* completion: longest common part */
1415 if (nextwild(&xpc, WILD_LONGEST, 0) == FAIL)
1416 break;
1417 goto cmdline_changed;
1418
1419 case Ctrl_N: /* next match */
1420 case Ctrl_P: /* previous match */
1421 if (xpc.xp_numfiles > 0)
1422 {
1423 if (nextwild(&xpc, (c == Ctrl_P) ? WILD_PREV : WILD_NEXT, 0)
1424 == FAIL)
1425 break;
1426 goto cmdline_changed;
1427 }
1428
1429 #ifdef FEAT_CMDHIST
1430 case K_UP:
1431 case K_DOWN:
1432 case K_S_UP:
1433 case K_S_DOWN:
1434 case K_PAGEUP:
1435 case K_KPAGEUP:
1436 case K_PAGEDOWN:
1437 case K_KPAGEDOWN:
1438 if (hislen == 0 || firstc == NUL) /* no history */
1439 goto cmdline_not_changed;
1440
1441 i = hiscnt;
1442
1443 /* save current command string so it can be restored later */
1444 if (lookfor == NULL)
1445 {
1446 if ((lookfor = vim_strsave(ccline.cmdbuff)) == NULL)
1447 goto cmdline_not_changed;
1448 lookfor[ccline.cmdpos] = NUL;
1449 }
1450
1451 j = (int)STRLEN(lookfor);
1452 for (;;)
1453 {
1454 /* one step backwards */
1455 if (c == K_UP|| c == K_S_UP || c == Ctrl_P
1456 || c == K_PAGEUP || c == K_KPAGEUP)
1457 {
1458 if (hiscnt == hislen) /* first time */
1459 hiscnt = hisidx[histype];
1460 else if (hiscnt == 0 && hisidx[histype] != hislen - 1)
1461 hiscnt = hislen - 1;
1462 else if (hiscnt != hisidx[histype] + 1)
1463 --hiscnt;
1464 else /* at top of list */
1465 {
1466 hiscnt = i;
1467 break;
1468 }
1469 }
1470 else /* one step forwards */
1471 {
1472 /* on last entry, clear the line */
1473 if (hiscnt == hisidx[histype])
1474 {
1475 hiscnt = hislen;
1476 break;
1477 }
1478
1479 /* not on a history line, nothing to do */
1480 if (hiscnt == hislen)
1481 break;
1482 if (hiscnt == hislen - 1) /* wrap around */
1483 hiscnt = 0;
1484 else
1485 ++hiscnt;
1486 }
1487 if (hiscnt < 0 || history[histype][hiscnt].hisstr == NULL)
1488 {
1489 hiscnt = i;
1490 break;
1491 }
1492 if ((c != K_UP && c != K_DOWN)
1493 || hiscnt == i
1494 || STRNCMP(history[histype][hiscnt].hisstr,
1495 lookfor, (size_t)j) == 0)
1496 break;
1497 }
1498
1499 if (hiscnt != i) /* jumped to other entry */
1500 {
1501 char_u *p;
1502 int len;
1503 int old_firstc;
1504
1505 vim_free(ccline.cmdbuff);
1506 if (hiscnt == hislen)
1507 p = lookfor; /* back to the old one */
1508 else
1509 p = history[histype][hiscnt].hisstr;
1510
1511 if (histype == HIST_SEARCH
1512 && p != lookfor
1513 && (old_firstc = p[STRLEN(p) + 1]) != firstc)
1514 {
1515 /* Correct for the separator character used when
1516 * adding the history entry vs the one used now.
1517 * First loop: count length.
1518 * Second loop: copy the characters. */
1519 for (i = 0; i <= 1; ++i)
1520 {
1521 len = 0;
1522 for (j = 0; p[j] != NUL; ++j)
1523 {
1524 /* Replace old sep with new sep, unless it is
1525 * escaped. */
1526 if (p[j] == old_firstc
1527 && (j == 0 || p[j - 1] != '\\'))
1528 {
1529 if (i > 0)
1530 ccline.cmdbuff[len] = firstc;
1531 }
1532 else
1533 {
1534 /* Escape new sep, unless it is already
1535 * escaped. */
1536 if (p[j] == firstc
1537 && (j == 0 || p[j - 1] != '\\'))
1538 {
1539 if (i > 0)
1540 ccline.cmdbuff[len] = '\\';
1541 ++len;
1542 }
1543 if (i > 0)
1544 ccline.cmdbuff[len] = p[j];
1545 }
1546 ++len;
1547 }
1548 if (i == 0)
1549 {
1550 alloc_cmdbuff(len);
1551 if (ccline.cmdbuff == NULL)
1552 goto returncmd;
1553 }
1554 }
1555 ccline.cmdbuff[len] = NUL;
1556 }
1557 else
1558 {
1559 alloc_cmdbuff((int)STRLEN(p));
1560 if (ccline.cmdbuff == NULL)
1561 goto returncmd;
1562 STRCPY(ccline.cmdbuff, p);
1563 }
1564
1565 ccline.cmdpos = ccline.cmdlen = (int)STRLEN(ccline.cmdbuff);
1566 redrawcmd();
1567 goto cmdline_changed;
1568 }
1569 beep_flush();
1570 goto cmdline_not_changed;
1571 #endif
1572
1573 case Ctrl_V:
1574 case Ctrl_Q:
1575 #ifdef FEAT_MOUSE
1576 ignore_drag_release = TRUE;
1577 #endif
1578 putcmdline('^', TRUE);
1579 c = get_literal(); /* get next (two) character(s) */
1580 do_abbr = FALSE; /* don't do abbreviation now */
1581 #ifdef FEAT_MBYTE
1582 /* may need to remove ^ when composing char was typed */
1583 if (enc_utf8 && utf_iscomposing(c) && !cmd_silent)
1584 {
1585 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
1586 msg_putchar(' ');
1587 cursorcmd();
1588 }
1589 #endif
1590 break;
1591
1592 #ifdef FEAT_DIGRAPHS
1593 case Ctrl_K:
1594 #ifdef FEAT_MOUSE
1595 ignore_drag_release = TRUE;
1596 #endif
1597 putcmdline('?', TRUE);
1598 #ifdef USE_ON_FLY_SCROLL
1599 dont_scroll = TRUE; /* disallow scrolling here */
1600 #endif
1601 c = get_digraph(TRUE);
1602 if (c != NUL)
1603 break;
1604
1605 redrawcmd();
1606 goto cmdline_not_changed;
1607 #endif /* FEAT_DIGRAPHS */
1608
1609 #ifdef FEAT_RIGHTLEFT
1610 case Ctrl__: /* CTRL-_: switch language mode */
1611 if (!p_ari)
1612 break;
1613 #ifdef FEAT_FKMAP
1614 if (p_altkeymap)
1615 {
1616 cmd_fkmap = !cmd_fkmap;
1617 if (cmd_fkmap) /* in Farsi always in Insert mode */
1618 ccline.overstrike = FALSE;
1619 }
1620 else /* Hebrew is default */
1621 #endif
1622 cmd_hkmap = !cmd_hkmap;
1623 goto cmdline_not_changed;
1624 #endif
1625
1626 default:
1627 #ifdef UNIX
1628 if (c == intr_char)
1629 {
1630 gotesc = TRUE; /* will free ccline.cmdbuff after
1631 putting it in history */
1632 goto returncmd; /* back to Normal mode */
1633 }
1634 #endif
1635 /*
1636 * Normal character with no special meaning. Just set mod_mask
1637 * to 0x0 so that typing Shift-Space in the GUI doesn't enter
1638 * the string <S-Space>. This should only happen after ^V.
1639 */
1640 if (!IS_SPECIAL(c))
1641 mod_mask = 0x0;
1642 break;
1643 }
1644 /*
1645 * End of switch on command line character.
1646 * We come here if we have a normal character.
1647 */
1648
1649 if (do_abbr && (IS_SPECIAL(c) || !vim_iswordc(c)) && ccheck_abbr(
1650 #ifdef FEAT_MBYTE
1651 /* Add ABBR_OFF for characters above 0x100, this is
1652 * what check_abbr() expects. */
1653 (has_mbyte && c >= 0x100) ? (c + ABBR_OFF) :
1654 #endif
1655 c))
1656 goto cmdline_changed;
1657
1658 /*
1659 * put the character in the command line
1660 */
1661 if (IS_SPECIAL(c) || mod_mask != 0)
1662 put_on_cmdline(get_special_key_name(c, mod_mask), -1, TRUE);
1663 else
1664 {
1665 #ifdef FEAT_MBYTE
1666 if (has_mbyte)
1667 {
1668 j = (*mb_char2bytes)(c, IObuff);
1669 IObuff[j] = NUL; /* exclude composing chars */
1670 put_on_cmdline(IObuff, j, TRUE);
1671 }
1672 else
1673 #endif
1674 {
1675 IObuff[0] = c;
1676 put_on_cmdline(IObuff, 1, TRUE);
1677 }
1678 }
1679 goto cmdline_changed;
1680
1681 /*
1682 * This part implements incremental searches for "/" and "?"
1683 * Jump to cmdline_not_changed when a character has been read but the command
1684 * line did not change. Then we only search and redraw if something changed in
1685 * the past.
1686 * Jump to cmdline_changed when the command line did change.
1687 * (Sorry for the goto's, I know it is ugly).
1688 */
1689 cmdline_not_changed:
1690 #ifdef FEAT_SEARCH_EXTRA
1691 if (!incsearch_postponed)
1692 continue;
1693 #endif
1694
1695 cmdline_changed:
1696 #ifdef FEAT_SEARCH_EXTRA
1697 /*
1698 * 'incsearch' highlighting.
1699 */
1700 if (p_is && !cmd_silent && (firstc == '/' || firstc == '?'))
1701 {
1702 pos_T end_pos;
1703
1704 /* if there is a character waiting, search and redraw later */
1705 if (char_avail())
1706 {
1707 incsearch_postponed = TRUE;
1708 continue;
1709 }
1710 incsearch_postponed = FALSE;
1711 curwin->w_cursor = old_cursor; /* start at old position */
1712
1713 /* If there is no command line, don't do anything */
1714 if (ccline.cmdlen == 0)
1715 i = 0;
1716 else
1717 {
1718 cursor_off(); /* so the user knows we're busy */
1719 out_flush();
1720 ++emsg_off; /* So it doesn't beep if bad expr */
1721 i = do_search(NULL, firstc, ccline.cmdbuff, count,
1722 SEARCH_KEEP + SEARCH_OPT + SEARCH_NOOF + SEARCH_PEEK);
1723 --emsg_off;
1724 /* if interrupted while searching, behave like it failed */
1725 if (got_int)
1726 {
1727 (void)vpeekc(); /* remove <C-C> from input stream */
1728 got_int = FALSE; /* don't abandon the command line */
1729 i = 0;
1730 }
1731 else if (char_avail())
1732 /* cancelled searching because a char was typed */
1733 incsearch_postponed = TRUE;
1734 }
1735 if (i != 0)
1736 highlight_match = TRUE; /* highlight position */
1737 else
1738 highlight_match = FALSE; /* remove highlight */
1739
1740 /* first restore the old curwin values, so the screen is
1741 * positioned in the same way as the actual search command */
1742 curwin->w_leftcol = old_leftcol;
1743 curwin->w_topline = old_topline;
1744 # ifdef FEAT_DIFF
1745 curwin->w_topfill = old_topfill;
1746 # endif
1747 curwin->w_botline = old_botline;
1748 changed_cline_bef_curs();
1749 update_topline();
1750
1751 if (i != 0)
1752 {
1753 pos_T save_pos = curwin->w_cursor;
1754
1755 /*
1756 * First move cursor to end of match, then to the start. This
1757 * moves the whole match onto the screen when 'nowrap' is set.
1758 */
1759 curwin->w_cursor.lnum += search_match_lines;
1760 curwin->w_cursor.col = search_match_endcol;
1761 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
1762 {
1763 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
1764 coladvance((colnr_T)MAXCOL);
1765 }
1766 validate_cursor();
1767 end_pos = curwin->w_cursor;
1768 curwin->w_cursor = save_pos;
1769 }
1770 else
1771 end_pos = curwin->w_cursor; /* shutup gcc 4 */
1772
1773 validate_cursor();
1774 # ifdef FEAT_WINDOWS
1775 /* May redraw the status line to show the cursor position. */
1776 if (p_ru && curwin->w_status_height > 0)
1777 curwin->w_redr_status = TRUE;
1778 # endif
1779
1780 save_cmdline(&save_ccline);
1781 update_screen(SOME_VALID);
1782 restore_cmdline(&save_ccline);
1783
1784 /* Leave it at the end to make CTRL-R CTRL-W work. */
1785 if (i != 0)
1786 curwin->w_cursor = end_pos;
1787
1788 msg_starthere();
1789 redrawcmdline();
1790 did_incsearch = TRUE;
1791 }
1792 #else /* FEAT_SEARCH_EXTRA */
1793 ;
1794 #endif
1795
1796 #ifdef FEAT_RIGHTLEFT
1797 if (cmdmsg_rl
1798 # ifdef FEAT_ARABIC
1799 || (p_arshape && !p_tbidi && enc_utf8)
1800 # endif
1801 )
1802 /* Always redraw the whole command line to fix shaping and
1803 * right-left typing. Not efficient, but it works. */
1804 redrawcmd();
1805 #endif
1806 }
1807
1808 returncmd:
1809
1810 #ifdef FEAT_RIGHTLEFT
1811 cmdmsg_rl = FALSE;
1812 #endif
1813
1814 #ifdef FEAT_FKMAP
1815 cmd_fkmap = 0;
1816 #endif
1817
1818 ExpandCleanup(&xpc);
1819
1820 #ifdef FEAT_SEARCH_EXTRA
1821 if (did_incsearch)
1822 {
1823 curwin->w_cursor = old_cursor;
1824 curwin->w_curswant = old_curswant;
1825 curwin->w_leftcol = old_leftcol;
1826 curwin->w_topline = old_topline;
1827 # ifdef FEAT_DIFF
1828 curwin->w_topfill = old_topfill;
1829 # endif
1830 curwin->w_botline = old_botline;
1831 highlight_match = FALSE;
1832 validate_cursor(); /* needed for TAB */
1833 redraw_later(SOME_VALID);
1834 }
1835 #endif
1836
1837 if (ccline.cmdbuff != NULL)
1838 {
1839 /*
1840 * Put line in history buffer (":" and "=" only when it was typed).
1841 */
1842 #ifdef FEAT_CMDHIST
1843 if (ccline.cmdlen && firstc != NUL
1844 && (some_key_typed || histype == HIST_SEARCH))
1845 {
1846 add_to_history(histype, ccline.cmdbuff, TRUE,
1847 histype == HIST_SEARCH ? firstc : NUL);
1848 if (firstc == ':')
1849 {
1850 vim_free(new_last_cmdline);
1851 new_last_cmdline = vim_strsave(ccline.cmdbuff);
1852 }
1853 }
1854 #endif
1855
1856 if (gotesc) /* abandon command line */
1857 {
1858 vim_free(ccline.cmdbuff);
1859 ccline.cmdbuff = NULL;
1860 if (msg_scrolled == 0)
1861 compute_cmdrow();
1862 MSG("");
1863 redraw_cmdline = TRUE;
1864 }
1865 }
1866
1867 /*
1868 * If the screen was shifted up, redraw the whole screen (later).
1869 * If the line is too long, clear it, so ruler and shown command do
1870 * not get printed in the middle of it.
1871 */
1872 msg_check();
1873 msg_scroll = save_msg_scroll;
1874 redir_off = FALSE;
1875
1876 /* When the command line was typed, no need for a wait-return prompt. */
1877 if (some_key_typed)
1878 need_wait_return = FALSE;
1879
1880 State = save_State;
1881 #ifdef USE_IM_CONTROL
1882 if (b_im_ptr != NULL && *b_im_ptr != B_IMODE_LMAP)
1883 im_save_status(b_im_ptr);
1884 im_set_active(FALSE);
1885 #endif
1886 #ifdef FEAT_MOUSE
1887 setmouse();
1888 #endif
1889 #ifdef CURSOR_SHAPE
1890 ui_cursor_shape(); /* may show different cursor shape */
1891 #endif
1892
1893 {
1894 char_u *p = ccline.cmdbuff;
1895
1896 /* Make ccline empty, getcmdline() may try to use it. */
1897 ccline.cmdbuff = NULL;
1898 return p;
1899 }
1900 }
1901
1902 #if (defined(FEAT_CRYPT) || defined(FEAT_EVAL)) || defined(PROTO)
1903 /*
1904 * Get a command line with a prompt.
1905 * This is prepared to be called recursively from getcmdline() (e.g. by
1906 * f_input() when evaluating an expression from CTRL-R =).
1907 * Returns the command line in allocated memory, or NULL.
1908 */
1909 char_u *
1910 getcmdline_prompt(firstc, prompt, attr, xp_context, xp_arg)
1911 int firstc;
1912 char_u *prompt; /* command line prompt */
1913 int attr; /* attributes for prompt */
1914 int xp_context; /* type of expansion */
1915 char_u *xp_arg; /* user-defined expansion argument */
1916 {
1917 char_u *s;
1918 struct cmdline_info save_ccline;
1919 int msg_col_save = msg_col;
1920
1921 save_cmdline(&save_ccline);
1922 ccline.cmdprompt = prompt;
1923 ccline.cmdattr = attr;
1924 # ifdef FEAT_EVAL
1925 ccline.xp_context = xp_context;
1926 ccline.xp_arg = xp_arg;
1927 ccline.input_fn = (firstc == '@');
1928 # endif
1929 s = getcmdline(firstc, 1L, 0);
1930 restore_cmdline(&save_ccline);
1931 /* Restore msg_col, the prompt from input() may have changed it. */
1932 msg_col = msg_col_save;
1933
1934 return s;
1935 }
1936 #endif
1937
1938 /*
1939 * Return TRUE when the text must not be changed and we can't switch to
1940 * another window or buffer. Used when editing the command line, evaluating
1941 * 'balloonexpr', etc.
1942 */
1943 int
1944 text_locked()
1945 {
1946 #ifdef FEAT_CMDWIN
1947 if (cmdwin_type != 0)
1948 return TRUE;
1949 #endif
1950 return textlock != 0;
1951 }
1952
1953 /*
1954 * Give an error message for a command that isn't allowed while the cmdline
1955 * window is open or editing the cmdline in another way.
1956 */
1957 void
1958 text_locked_msg()
1959 {
1960 #ifdef FEAT_CMDWIN
1961 if (cmdwin_type != 0)
1962 EMSG(_(e_cmdwin));
1963 else
1964 #endif
1965 EMSG(_(e_secure));
1966 }
1967
1968 #if defined(FEAT_AUTOCMD) || defined(PROTO)
1969 /*
1970 * Check if "curbuf_lock" is set and return TRUE when it is and give an error
1971 * message.
1972 */
1973 int
1974 curbuf_locked()
1975 {
1976 if (curbuf_lock > 0)
1977 {
1978 EMSG(_("E788: Not allowed to edit another buffer now"));
1979 return TRUE;
1980 }
1981 return FALSE;
1982 }
1983 #endif
1984
1985 static int
1986 cmdline_charsize(idx)
1987 int idx;
1988 {
1989 #if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
1990 if (cmdline_star > 0) /* showing '*', always 1 position */
1991 return 1;
1992 #endif
1993 return ptr2cells(ccline.cmdbuff + idx);
1994 }
1995
1996 /*
1997 * Compute the offset of the cursor on the command line for the prompt and
1998 * indent.
1999 */
2000 static void
2001 set_cmdspos()
2002 {
2003 if (ccline.cmdfirstc != NUL)
2004 ccline.cmdspos = 1 + ccline.cmdindent;
2005 else
2006 ccline.cmdspos = 0 + ccline.cmdindent;
2007 }
2008
2009 /*
2010 * Compute the screen position for the cursor on the command line.
2011 */
2012 static void
2013 set_cmdspos_cursor()
2014 {
2015 int i, m, c;
2016
2017 set_cmdspos();
2018 if (KeyTyped)
2019 {
2020 m = Columns * Rows;
2021 if (m < 0) /* overflow, Columns or Rows at weird value */
2022 m = MAXCOL;
2023 }
2024 else
2025 m = MAXCOL;
2026 for (i = 0; i < ccline.cmdlen && i < ccline.cmdpos; ++i)
2027 {
2028 c = cmdline_charsize(i);
2029 #ifdef FEAT_MBYTE
2030 /* Count ">" for double-wide multi-byte char that doesn't fit. */
2031 if (has_mbyte)
2032 correct_cmdspos(i, c);
2033 #endif
2034 /* If the cmdline doesn't fit, put cursor on last visible char. */
2035 if ((ccline.cmdspos += c) >= m)
2036 {
2037 ccline.cmdpos = i - 1;
2038 ccline.cmdspos -= c;
2039 break;
2040 }
2041 #ifdef FEAT_MBYTE
2042 if (has_mbyte)
2043 i += (*mb_ptr2len)(ccline.cmdbuff + i) - 1;
2044 #endif
2045 }
2046 }
2047
2048 #ifdef FEAT_MBYTE
2049 /*
2050 * Check if the character at "idx", which is "cells" wide, is a multi-byte
2051 * character that doesn't fit, so that a ">" must be displayed.
2052 */
2053 static void
2054 correct_cmdspos(idx, cells)
2055 int idx;
2056 int cells;
2057 {
2058 if ((*mb_ptr2len)(ccline.cmdbuff + idx) > 1
2059 && (*mb_ptr2cells)(ccline.cmdbuff + idx) > 1
2060 && ccline.cmdspos % Columns + cells > Columns)
2061 ccline.cmdspos++;
2062 }
2063 #endif
2064
2065 /*
2066 * Get an Ex command line for the ":" command.
2067 */
2068 /* ARGSUSED */
2069 char_u *
2070 getexline(c, dummy, indent)
2071 int c; /* normally ':', NUL for ":append" */
2072 void *dummy; /* cookie not used */
2073 int indent; /* indent for inside conditionals */
2074 {
2075 /* When executing a register, remove ':' that's in front of each line. */
2076 if (exec_from_reg && vpeekc() == ':')
2077 (void)vgetc();
2078 return getcmdline(c, 1L, indent);
2079 }
2080
2081 /*
2082 * Get an Ex command line for Ex mode.
2083 * In Ex mode we only use the OS supplied line editing features and no
2084 * mappings or abbreviations.
2085 * Returns a string in allocated memory or NULL.
2086 */
2087 /* ARGSUSED */
2088 char_u *
2089 getexmodeline(promptc, dummy, indent)
2090 int promptc; /* normally ':', NUL for ":append" and '?' for
2091 :s prompt */
2092 void *dummy; /* cookie not used */
2093 int indent; /* indent for inside conditionals */
2094 {
2095 garray_T line_ga;
2096 char_u *pend;
2097 int startcol = 0;
2098 int c1 = 0;
2099 int escaped = FALSE; /* CTRL-V typed */
2100 int vcol = 0;
2101 char_u *p;
2102 int prev_char;
2103
2104 /* Switch cursor on now. This avoids that it happens after the "\n", which
2105 * confuses the system function that computes tabstops. */
2106 cursor_on();
2107
2108 /* always start in column 0; write a newline if necessary */
2109 compute_cmdrow();
2110 if ((msg_col || msg_didout) && promptc != '?')
2111 msg_putchar('\n');
2112 if (promptc == ':')
2113 {
2114 /* indent that is only displayed, not in the line itself */
2115 if (p_prompt)
2116 msg_putchar(':');
2117 while (indent-- > 0)
2118 msg_putchar(' ');
2119 startcol = msg_col;
2120 }
2121
2122 ga_init2(&line_ga, 1, 30);
2123
2124 /* autoindent for :insert and :append is in the line itself */
2125 if (promptc <= 0)
2126 {
2127 vcol = indent;
2128 while (indent >= 8)
2129 {
2130 ga_append(&line_ga, TAB);
2131 msg_puts((char_u *)" ");
2132 indent -= 8;
2133 }
2134 while (indent-- > 0)
2135 {
2136 ga_append(&line_ga, ' ');
2137 msg_putchar(' ');
2138 }
2139 }
2140 ++no_mapping;
2141 ++allow_keys;
2142
2143 /*
2144 * Get the line, one character at a time.
2145 */
2146 got_int = FALSE;
2147 while (!got_int)
2148 {
2149 if (ga_grow(&line_ga, 40) == FAIL)
2150 break;
2151 pend = (char_u *)line_ga.ga_data + line_ga.ga_len;
2152
2153 /* Get one character at a time. Don't use inchar(), it can't handle
2154 * special characters. */
2155 prev_char = c1;
2156 c1 = vgetc();
2157
2158 /*
2159 * Handle line editing.
2160 * Previously this was left to the system, putting the terminal in
2161 * cooked mode, but then CTRL-D and CTRL-T can't be used properly.
2162 */
2163 if (got_int)
2164 {
2165 msg_putchar('\n');
2166 break;
2167 }
2168
2169 if (!escaped)
2170 {
2171 /* CR typed means "enter", which is NL */
2172 if (c1 == '\r')
2173 c1 = '\n';
2174
2175 if (c1 == BS || c1 == K_BS
2176 || c1 == DEL || c1 == K_DEL || c1 == K_KDEL)
2177 {
2178 if (line_ga.ga_len > 0)
2179 {
2180 --line_ga.ga_len;
2181 goto redraw;
2182 }
2183 continue;
2184 }
2185
2186 if (c1 == Ctrl_U)
2187 {
2188 msg_col = startcol;
2189 msg_clr_eos();
2190 line_ga.ga_len = 0;
2191 continue;
2192 }
2193
2194 if (c1 == Ctrl_T)
2195 {
2196 p = (char_u *)line_ga.ga_data;
2197 p[line_ga.ga_len] = NUL;
2198 indent = get_indent_str(p, 8);
2199 indent += curbuf->b_p_sw - indent % curbuf->b_p_sw;
2200 add_indent:
2201 while (get_indent_str(p, 8) < indent)
2202 {
2203 char_u *s = skipwhite(p);
2204
2205 ga_grow(&line_ga, 1);
2206 mch_memmove(s + 1, s, line_ga.ga_len - (s - p) + 1);
2207 *s = ' ';
2208 ++line_ga.ga_len;
2209 }
2210 redraw:
2211 /* redraw the line */
2212 msg_col = startcol;
2213 vcol = 0;
2214 for (p = (char_u *)line_ga.ga_data;
2215 p < (char_u *)line_ga.ga_data + line_ga.ga_len; ++p)
2216 {
2217 if (*p == TAB)
2218 {
2219 do
2220 {
2221 msg_putchar(' ');
2222 } while (++vcol % 8);
2223 }
2224 else
2225 {
2226 msg_outtrans_len(p, 1);
2227 vcol += char2cells(*p);
2228 }
2229 }
2230 msg_clr_eos();
2231 windgoto(msg_row, msg_col);
2232 continue;
2233 }
2234
2235 if (c1 == Ctrl_D)
2236 {
2237 /* Delete one shiftwidth. */
2238 p = (char_u *)line_ga.ga_data;
2239 if (prev_char == '0' || prev_char == '^')
2240 {
2241 if (prev_char == '^')
2242 ex_keep_indent = TRUE;
2243 indent = 0;
2244 p[--line_ga.ga_len] = NUL;
2245 }
2246 else
2247 {
2248 p[line_ga.ga_len] = NUL;
2249 indent = get_indent_str(p, 8);
2250 --indent;
2251 indent -= indent % curbuf->b_p_sw;
2252 }
2253 while (get_indent_str(p, 8) > indent)
2254 {
2255 char_u *s = skipwhite(p);
2256
2257 mch_memmove(s - 1, s, line_ga.ga_len - (s - p) + 1);
2258 --line_ga.ga_len;
2259 }
2260 goto add_indent;
2261 }
2262
2263 if (c1 == Ctrl_V || c1 == Ctrl_Q)
2264 {
2265 escaped = TRUE;
2266 continue;
2267 }
2268
2269 /* Ignore special key codes: mouse movement, K_IGNORE, etc. */
2270 if (IS_SPECIAL(c1))
2271 continue;
2272 }
2273
2274 if (IS_SPECIAL(c1))
2275 c1 = '?';
2276 ((char_u *)line_ga.ga_data)[line_ga.ga_len] = c1;
2277 if (c1 == '\n')
2278 msg_putchar('\n');
2279 else if (c1 == TAB)
2280 {
2281 /* Don't use chartabsize(), 'ts' can be different */
2282 do
2283 {
2284 msg_putchar(' ');
2285 } while (++vcol % 8);
2286 }
2287 else
2288 {
2289 msg_outtrans_len(
2290 ((char_u *)line_ga.ga_data) + line_ga.ga_len, 1);
2291 vcol += char2cells(c1);
2292 }
2293 ++line_ga.ga_len;
2294 escaped = FALSE;
2295
2296 windgoto(msg_row, msg_col);
2297 pend = (char_u *)(line_ga.ga_data) + line_ga.ga_len;
2298
2299 /* we are done when a NL is entered, but not when it comes after a
2300 * backslash */
2301 if (line_ga.ga_len > 0 && pend[-1] == '\n'
2302 && (line_ga.ga_len <= 1 || pend[-2] != '\\'))
2303 {
2304 --line_ga.ga_len;
2305 --pend;
2306 *pend = NUL;
2307 break;
2308 }
2309 }
2310
2311 --no_mapping;
2312 --allow_keys;
2313
2314 /* make following messages go to the next line */
2315 msg_didout = FALSE;
2316 msg_col = 0;
2317 if (msg_row < Rows - 1)
2318 ++msg_row;
2319 emsg_on_display = FALSE; /* don't want ui_delay() */
2320
2321 if (got_int)
2322 ga_clear(&line_ga);
2323
2324 return (char_u *)line_ga.ga_data;
2325 }
2326
2327 # if defined(MCH_CURSOR_SHAPE) || defined(FEAT_GUI) \
2328 || defined(FEAT_MOUSESHAPE) || defined(PROTO)
2329 /*
2330 * Return TRUE if ccline.overstrike is on.
2331 */
2332 int
2333 cmdline_overstrike()
2334 {
2335 return ccline.overstrike;
2336 }
2337
2338 /*
2339 * Return TRUE if the cursor is at the end of the cmdline.
2340 */
2341 int
2342 cmdline_at_end()
2343 {
2344 return (ccline.cmdpos >= ccline.cmdlen);
2345 }
2346 #endif
2347
2348 #if (defined(FEAT_XIM) && (defined(FEAT_GUI_GTK))) || defined(PROTO)
2349 /*
2350 * Return the virtual column number at the current cursor position.
2351 * This is used by the IM code to obtain the start of the preedit string.
2352 */
2353 colnr_T
2354 cmdline_getvcol_cursor()
2355 {
2356 if (ccline.cmdbuff == NULL || ccline.cmdpos > ccline.cmdlen)
2357 return MAXCOL;
2358
2359 # ifdef FEAT_MBYTE
2360 if (has_mbyte)
2361 {
2362 colnr_T col;
2363 int i = 0;
2364
2365 for (col = 0; i < ccline.cmdpos; ++col)
2366 i += (*mb_ptr2len)(ccline.cmdbuff + i);
2367
2368 return col;
2369 }
2370 else
2371 # endif
2372 return ccline.cmdpos;
2373 }
2374 #endif
2375
2376 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
2377 /*
2378 * If part of the command line is an IM preedit string, redraw it with
2379 * IM feedback attributes. The cursor position is restored after drawing.
2380 */
2381 static void
2382 redrawcmd_preedit()
2383 {
2384 if ((State & CMDLINE)
2385 && xic != NULL
2386 /* && im_get_status() doesn't work when using SCIM */
2387 && !p_imdisable
2388 && im_is_preediting())
2389 {
2390 int cmdpos = 0;
2391 int cmdspos;
2392 int old_row;
2393 int old_col;
2394 colnr_T col;
2395
2396 old_row = msg_row;
2397 old_col = msg_col;
2398 cmdspos = ((ccline.cmdfirstc != NUL) ? 1 : 0) + ccline.cmdindent;
2399
2400 # ifdef FEAT_MBYTE
2401 if (has_mbyte)
2402 {
2403 for (col = 0; col < preedit_start_col
2404 && cmdpos < ccline.cmdlen; ++col)
2405 {
2406 cmdspos += (*mb_ptr2cells)(ccline.cmdbuff + cmdpos);
2407 cmdpos += (*mb_ptr2len)(ccline.cmdbuff + cmdpos);
2408 }
2409 }
2410 else
2411 # endif
2412 {
2413 cmdspos += preedit_start_col;
2414 cmdpos += preedit_start_col;
2415 }
2416
2417 msg_row = cmdline_row + (cmdspos / (int)Columns);
2418 msg_col = cmdspos % (int)Columns;
2419 if (msg_row >= Rows)
2420 msg_row = Rows - 1;
2421
2422 for (col = 0; cmdpos < ccline.cmdlen; ++col)
2423 {
2424 int char_len;
2425 int char_attr;
2426
2427 char_attr = im_get_feedback_attr(col);
2428 if (char_attr < 0)
2429 break; /* end of preedit string */
2430
2431 # ifdef FEAT_MBYTE
2432 if (has_mbyte)
2433 char_len = (*mb_ptr2len)(ccline.cmdbuff + cmdpos);
2434 else
2435 # endif
2436 char_len = 1;
2437
2438 msg_outtrans_len_attr(ccline.cmdbuff + cmdpos, char_len, char_attr);
2439 cmdpos += char_len;
2440 }
2441
2442 msg_row = old_row;
2443 msg_col = old_col;
2444 }
2445 }
2446 #endif /* FEAT_XIM && FEAT_GUI_GTK */
2447
2448 /*
2449 * Allocate a new command line buffer.
2450 * Assigns the new buffer to ccline.cmdbuff and ccline.cmdbufflen.
2451 * Returns the new value of ccline.cmdbuff and ccline.cmdbufflen.
2452 */
2453 static void
2454 alloc_cmdbuff(len)
2455 int len;
2456 {
2457 /*
2458 * give some extra space to avoid having to allocate all the time
2459 */
2460 if (len < 80)
2461 len = 100;
2462 else
2463 len += 20;
2464
2465 ccline.cmdbuff = alloc(len); /* caller should check for out-of-memory */
2466 ccline.cmdbufflen = len;
2467 }
2468
2469 /*
2470 * Re-allocate the command line to length len + something extra.
2471 * return FAIL for failure, OK otherwise
2472 */
2473 static int
2474 realloc_cmdbuff(len)
2475 int len;
2476 {
2477 char_u *p;
2478
2479 p = ccline.cmdbuff;
2480 alloc_cmdbuff(len); /* will get some more */
2481 if (ccline.cmdbuff == NULL) /* out of memory */
2482 {
2483 ccline.cmdbuff = p; /* keep the old one */
2484 return FAIL;
2485 }
2486 mch_memmove(ccline.cmdbuff, p, (size_t)ccline.cmdlen + 1);
2487 vim_free(p);
2488 return OK;
2489 }
2490
2491 #if defined(FEAT_ARABIC) || defined(PROTO)
2492 static char_u *arshape_buf = NULL;
2493
2494 # if defined(EXITFREE) || defined(PROTO)
2495 void
2496 free_cmdline_buf()
2497 {
2498 vim_free(arshape_buf);
2499 }
2500 # endif
2501 #endif
2502
2503 /*
2504 * Draw part of the cmdline at the current cursor position. But draw stars
2505 * when cmdline_star is TRUE.
2506 */
2507 static void
2508 draw_cmdline(start, len)
2509 int start;
2510 int len;
2511 {
2512 #if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
2513 int i;
2514
2515 if (cmdline_star > 0)
2516 for (i = 0; i < len; ++i)
2517 {
2518 msg_putchar('*');
2519 # ifdef FEAT_MBYTE
2520 if (has_mbyte)
2521 i += (*mb_ptr2len)(ccline.cmdbuff + start + i) - 1;
2522 # endif
2523 }
2524 else
2525 #endif
2526 #ifdef FEAT_ARABIC
2527 if (p_arshape && !p_tbidi && enc_utf8 && len > 0)
2528 {
2529 static int buflen = 0;
2530 char_u *p;
2531 int j;
2532 int newlen = 0;
2533 int mb_l;
2534 int pc, pc1 = 0;
2535 int prev_c = 0;
2536 int prev_c1 = 0;
2537 int u8c;
2538 int u8cc[MAX_MCO];
2539 int nc = 0;
2540
2541 /*
2542 * Do arabic shaping into a temporary buffer. This is very
2543 * inefficient!
2544 */
2545 if (len * 2 + 2 > buflen)
2546 {
2547 /* Re-allocate the buffer. We keep it around to avoid a lot of
2548 * alloc()/free() calls. */
2549 vim_free(arshape_buf);
2550 buflen = len * 2 + 2;
2551 arshape_buf = alloc(buflen);
2552 if (arshape_buf == NULL)
2553 return; /* out of memory */
2554 }
2555
2556 if (utf_iscomposing(utf_ptr2char(ccline.cmdbuff + start)))
2557 {
2558 /* Prepend a space to draw the leading composing char on. */
2559 arshape_buf[0] = ' ';
2560 newlen = 1;
2561 }
2562
2563 for (j = start; j < start + len; j += mb_l)
2564 {
2565 p = ccline.cmdbuff + j;
2566 u8c = utfc_ptr2char_len(p, u8cc, start + len - j);
2567 mb_l = utfc_ptr2len_len(p, start + len - j);
2568 if (ARABIC_CHAR(u8c))
2569 {
2570 /* Do Arabic shaping. */
2571 if (cmdmsg_rl)
2572 {
2573 /* displaying from right to left */
2574 pc = prev_c;
2575 pc1 = prev_c1;
2576 prev_c1 = u8cc[0];
2577 if (j + mb_l >= start + len)
2578 nc = NUL;
2579 else
2580 nc = utf_ptr2char(p + mb_l);
2581 }
2582 else
2583 {
2584 /* displaying from left to right */
2585 if (j + mb_l >= start + len)
2586 pc = NUL;
2587 else
2588 {
2589 int pcc[MAX_MCO];
2590
2591 pc = utfc_ptr2char_len(p + mb_l, pcc,
2592 start + len - j - mb_l);
2593 pc1 = pcc[0];
2594 }
2595 nc = prev_c;
2596 }
2597 prev_c = u8c;
2598
2599 u8c = arabic_shape(u8c, NULL, &u8cc[0], pc, pc1, nc);
2600
2601 newlen += (*mb_char2bytes)(u8c, arshape_buf + newlen);
2602 if (u8cc[0] != 0)
2603 {
2604 newlen += (*mb_char2bytes)(u8cc[0], arshape_buf + newlen);
2605 if (u8cc[1] != 0)
2606 newlen += (*mb_char2bytes)(u8cc[1],
2607 arshape_buf + newlen);
2608 }
2609 }
2610 else
2611 {
2612 prev_c = u8c;
2613 mch_memmove(arshape_buf + newlen, p, mb_l);
2614 newlen += mb_l;
2615 }
2616 }
2617
2618 msg_outtrans_len(arshape_buf, newlen);
2619 }
2620 else
2621 #endif
2622 msg_outtrans_len(ccline.cmdbuff + start, len);
2623 }
2624
2625 /*
2626 * Put a character on the command line. Shifts the following text to the
2627 * right when "shift" is TRUE. Used for CTRL-V, CTRL-K, etc.
2628 * "c" must be printable (fit in one display cell)!
2629 */
2630 void
2631 putcmdline(c, shift)
2632 int c;
2633 int shift;
2634 {
2635 if (cmd_silent)
2636 return;
2637 msg_no_more = TRUE;
2638 msg_putchar(c);
2639 if (shift)
2640 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
2641 msg_no_more = FALSE;
2642 cursorcmd();
2643 }
2644
2645 /*
2646 * Undo a putcmdline(c, FALSE).
2647 */
2648 void
2649 unputcmdline()
2650 {
2651 if (cmd_silent)
2652 return;
2653 msg_no_more = TRUE;
2654 if (ccline.cmdlen == ccline.cmdpos)
2655 msg_putchar(' ');
2656 else
2657 draw_cmdline(ccline.cmdpos, 1);
2658 msg_no_more = FALSE;
2659 cursorcmd();
2660 }
2661
2662 /*
2663 * Put the given string, of the given length, onto the command line.
2664 * If len is -1, then STRLEN() is used to calculate the length.
2665 * If 'redraw' is TRUE then the new part of the command line, and the remaining
2666 * part will be redrawn, otherwise it will not. If this function is called
2667 * twice in a row, then 'redraw' should be FALSE and redrawcmd() should be
2668 * called afterwards.
2669 */
2670 int
2671 put_on_cmdline(str, len, redraw)
2672 char_u *str;
2673 int len;
2674 int redraw;
2675 {
2676 int retval;
2677 int i;
2678 int m;
2679 int c;
2680
2681 if (len < 0)
2682 len = (int)STRLEN(str);
2683
2684 /* Check if ccline.cmdbuff needs to be longer */
2685 if (ccline.cmdlen + len + 1 >= ccline.cmdbufflen)
2686 retval = realloc_cmdbuff(ccline.cmdlen + len);
2687 else
2688 retval = OK;
2689 if (retval == OK)
2690 {
2691 if (!ccline.overstrike)
2692 {
2693 mch_memmove(ccline.cmdbuff + ccline.cmdpos + len,
2694 ccline.cmdbuff + ccline.cmdpos,
2695 (size_t)(ccline.cmdlen - ccline.cmdpos));
2696 ccline.cmdlen += len;
2697 }
2698 else
2699 {
2700 #ifdef FEAT_MBYTE
2701 if (has_mbyte)
2702 {
2703 /* Count nr of characters in the new string. */
2704 m = 0;
2705 for (i = 0; i < len; i += (*mb_ptr2len)(str + i))
2706 ++m;
2707 /* Count nr of bytes in cmdline that are overwritten by these
2708 * characters. */
2709 for (i = ccline.cmdpos; i < ccline.cmdlen && m > 0;
2710 i += (*mb_ptr2len)(ccline.cmdbuff + i))
2711 --m;
2712 if (i < ccline.cmdlen)
2713 {
2714 mch_memmove(ccline.cmdbuff + ccline.cmdpos + len,
2715 ccline.cmdbuff + i, (size_t)(ccline.cmdlen - i));
2716 ccline.cmdlen += ccline.cmdpos + len - i;
2717 }
2718 else
2719 ccline.cmdlen = ccline.cmdpos + len;
2720 }
2721 else
2722 #endif
2723 if (ccline.cmdpos + len > ccline.cmdlen)
2724 ccline.cmdlen = ccline.cmdpos + len;
2725 }
2726 mch_memmove(ccline.cmdbuff + ccline.cmdpos, str, (size_t)len);
2727 ccline.cmdbuff[ccline.cmdlen] = NUL;
2728
2729 #ifdef FEAT_MBYTE
2730 if (enc_utf8)
2731 {
2732 /* When the inserted text starts with a composing character,
2733 * backup to the character before it. There could be two of them.
2734 */
2735 i = 0;
2736 c = utf_ptr2char(ccline.cmdbuff + ccline.cmdpos);
2737 while (ccline.cmdpos > 0 && utf_iscomposing(c))
2738 {
2739 i = (*mb_head_off)(ccline.cmdbuff,
2740 ccline.cmdbuff + ccline.cmdpos - 1) + 1;
2741 ccline.cmdpos -= i;
2742 len += i;
2743 c = utf_ptr2char(ccline.cmdbuff + ccline.cmdpos);
2744 }
2745 # ifdef FEAT_ARABIC
2746 if (i == 0 && ccline.cmdpos > 0 && arabic_maycombine(c))
2747 {
2748 /* Check the previous character for Arabic combining pair. */
2749 i = (*mb_head_off)(ccline.cmdbuff,
2750 ccline.cmdbuff + ccline.cmdpos - 1) + 1;
2751 if (arabic_combine(utf_ptr2char(ccline.cmdbuff
2752 + ccline.cmdpos - i), c))
2753 {
2754 ccline.cmdpos -= i;
2755 len += i;
2756 }
2757 else
2758 i = 0;
2759 }
2760 # endif
2761 if (i != 0)
2762 {
2763 /* Also backup the cursor position. */
2764 i = ptr2cells(ccline.cmdbuff + ccline.cmdpos);
2765 ccline.cmdspos -= i;
2766 msg_col -= i;
2767 if (msg_col < 0)
2768 {
2769 msg_col += Columns;
2770 --msg_row;
2771 }
2772 }
2773 }
2774 #endif
2775
2776 if (redraw && !cmd_silent)
2777 {
2778 msg_no_more = TRUE;
2779 i = cmdline_row;
2780 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
2781 /* Avoid clearing the rest of the line too often. */
2782 if (cmdline_row != i || ccline.overstrike)
2783 msg_clr_eos();
2784 msg_no_more = FALSE;
2785 }
2786 #ifdef FEAT_FKMAP
2787 /*
2788 * If we are in Farsi command mode, the character input must be in
2789 * Insert mode. So do not advance the cmdpos.
2790 */
2791 if (!cmd_fkmap)
2792 #endif
2793 {
2794 if (KeyTyped)
2795 {
2796 m = Columns * Rows;
2797 if (m < 0) /* overflow, Columns or Rows at weird value */
2798 m = MAXCOL;
2799 }
2800 else
2801 m = MAXCOL;
2802 for (i = 0; i < len; ++i)
2803 {
2804 c = cmdline_charsize(ccline.cmdpos);
2805 #ifdef FEAT_MBYTE
2806 /* count ">" for a double-wide char that doesn't fit. */
2807 if (has_mbyte)
2808 correct_cmdspos(ccline.cmdpos, c);
2809 #endif
2810 /* Stop cursor at the end of the screen */
2811 if (ccline.cmdspos + c >= m)
2812 break;
2813 ccline.cmdspos += c;
2814 #ifdef FEAT_MBYTE
2815 if (has_mbyte)
2816 {
2817 c = (*mb_ptr2len)(ccline.cmdbuff + ccline.cmdpos) - 1;
2818 if (c > len - i - 1)
2819 c = len - i - 1;
2820 ccline.cmdpos += c;
2821 i += c;
2822 }
2823 #endif
2824 ++ccline.cmdpos;
2825 }
2826 }
2827 }
2828 if (redraw)
2829 msg_check();
2830 return retval;
2831 }
2832
2833 static struct cmdline_info prev_ccline;
2834 static int prev_ccline_used = FALSE;
2835
2836 /*
2837 * Save ccline, because obtaining the "=" register may execute "normal :cmd"
2838 * and overwrite it. But get_cmdline_str() may need it, thus make it
2839 * available globally in prev_ccline.
2840 */
2841 static void
2842 save_cmdline(ccp)
2843 struct cmdline_info *ccp;
2844 {
2845 if (!prev_ccline_used)
2846 {
2847 vim_memset(&prev_ccline, 0, sizeof(struct cmdline_info));
2848 prev_ccline_used = TRUE;
2849 }
2850 *ccp = prev_ccline;
2851 prev_ccline = ccline;
2852 ccline.cmdbuff = NULL;
2853 ccline.cmdprompt = NULL;
2854 }
2855
2856 /*
2857 * Restore ccline after it has been saved with save_cmdline().
2858 */
2859 static void
2860 restore_cmdline(ccp)
2861 struct cmdline_info *ccp;
2862 {
2863 ccline = prev_ccline;
2864 prev_ccline = *ccp;
2865 }
2866
2867 #if defined(FEAT_EVAL) || defined(PROTO)
2868 /*
2869 * Save the command line into allocated memory. Returns a pointer to be
2870 * passed to restore_cmdline_alloc() later.
2871 * Returns NULL when failed.
2872 */
2873 char_u *
2874 save_cmdline_alloc()
2875 {
2876 struct cmdline_info *p;
2877
2878 p = (struct cmdline_info *)alloc((unsigned)sizeof(struct cmdline_info));
2879 if (p != NULL)
2880 save_cmdline(p);
2881 return (char_u *)p;
2882 }
2883
2884 /*
2885 * Restore the command line from the return value of save_cmdline_alloc().
2886 */
2887 void
2888 restore_cmdline_alloc(p)
2889 char_u *p;
2890 {
2891 if (p != NULL)
2892 {
2893 restore_cmdline((struct cmdline_info *)p);
2894 vim_free(p);
2895 }
2896 }
2897 #endif
2898
2899 /*
2900 * paste a yank register into the command line.
2901 * used by CTRL-R command in command-line mode
2902 * insert_reg() can't be used here, because special characters from the
2903 * register contents will be interpreted as commands.
2904 *
2905 * return FAIL for failure, OK otherwise
2906 */
2907 static int
2908 cmdline_paste(regname, literally, remcr)
2909 int regname;
2910 int literally; /* Insert text literally instead of "as typed" */
2911 int remcr; /* remove trailing CR */
2912 {
2913 long i;
2914 char_u *arg;
2915 char_u *p;
2916 int allocated;
2917 struct cmdline_info save_ccline;
2918
2919 /* check for valid regname; also accept special characters for CTRL-R in
2920 * the command line */
2921 if (regname != Ctrl_F && regname != Ctrl_P && regname != Ctrl_W
2922 && regname != Ctrl_A && !valid_yank_reg(regname, FALSE))
2923 return FAIL;
2924
2925 /* A register containing CTRL-R can cause an endless loop. Allow using
2926 * CTRL-C to break the loop. */
2927 line_breakcheck();
2928 if (got_int)
2929 return FAIL;
2930
2931 #ifdef FEAT_CLIPBOARD
2932 regname = may_get_selection(regname);
2933 #endif
2934
2935 /* Need to save and restore ccline. And set "textlock" to avoid nasty
2936 * things like going to another buffer when evaluating an expression. */
2937 save_cmdline(&save_ccline);
2938 ++textlock;
2939 i = get_spec_reg(regname, &arg, &allocated, TRUE);
2940 --textlock;
2941 restore_cmdline(&save_ccline);
2942
2943 if (i)
2944 {
2945 /* Got the value of a special register in "arg". */
2946 if (arg == NULL)
2947 return FAIL;
2948
2949 /* When 'incsearch' is set and CTRL-R CTRL-W used: skip the duplicate
2950 * part of the word. */
2951 p = arg;
2952 if (p_is && regname == Ctrl_W)
2953 {
2954 char_u *w;
2955 int len;
2956
2957 /* Locate start of last word in the cmd buffer. */
2958 for (w = ccline.cmdbuff + ccline.cmdlen; w > ccline.cmdbuff; )
2959 {
2960 #ifdef FEAT_MBYTE
2961 if (has_mbyte)
2962 {
2963 len = (*mb_head_off)(ccline.cmdbuff, w - 1) + 1;
2964 if (!vim_iswordc(mb_ptr2char(w - len)))
2965 break;
2966 w -= len;
2967 }
2968 else
2969 #endif
2970 {
2971 if (!vim_iswordc(w[-1]))
2972 break;
2973 --w;
2974 }
2975 }
2976 len = (int)((ccline.cmdbuff + ccline.cmdlen) - w);
2977 if (p_ic ? STRNICMP(w, arg, len) == 0 : STRNCMP(w, arg, len) == 0)
2978 p += len;
2979 }
2980
2981 cmdline_paste_str(p, literally);
2982 if (allocated)
2983 vim_free(arg);
2984 return OK;
2985 }
2986
2987 return cmdline_paste_reg(regname, literally, remcr);
2988 }
2989
2990 /*
2991 * Put a string on the command line.
2992 * When "literally" is TRUE, insert literally.
2993 * When "literally" is FALSE, insert as typed, but don't leave the command
2994 * line.
2995 */
2996 void
2997 cmdline_paste_str(s, literally)
2998 char_u *s;
2999 int literally;
3000 {
3001 int c, cv;
3002
3003 if (literally)
3004 put_on_cmdline(s, -1, TRUE);
3005 else
3006 while (*s != NUL)
3007 {
3008 cv = *s;
3009 if (cv == Ctrl_V && s[1])
3010 ++s;
3011 #ifdef FEAT_MBYTE
3012 if (has_mbyte)
3013 {
3014 c = mb_ptr2char(s);
3015 s += mb_char2len(c);
3016 }
3017 else
3018 #endif
3019 c = *s++;
3020 if (cv == Ctrl_V || c == ESC || c == Ctrl_C || c == CAR || c == NL
3021 #ifdef UNIX
3022 || c == intr_char
3023 #endif
3024 || (c == Ctrl_BSL && *s == Ctrl_N))
3025 stuffcharReadbuff(Ctrl_V);
3026 stuffcharReadbuff(c);
3027 }
3028 }
3029
3030 #ifdef FEAT_WILDMENU
3031 /*
3032 * Delete characters on the command line, from "from" to the current
3033 * position.
3034 */
3035 static void
3036 cmdline_del(from)
3037 int from;
3038 {
3039 mch_memmove(ccline.cmdbuff + from, ccline.cmdbuff + ccline.cmdpos,
3040 (size_t)(ccline.cmdlen - ccline.cmdpos + 1));
3041 ccline.cmdlen -= ccline.cmdpos - from;
3042 ccline.cmdpos = from;
3043 }
3044 #endif
3045
3046 /*
3047 * this function is called when the screen size changes and with incremental
3048 * search
3049 */
3050 void
3051 redrawcmdline()
3052 {
3053 if (cmd_silent)
3054 return;
3055 need_wait_return = FALSE;
3056 compute_cmdrow();
3057 redrawcmd();
3058 cursorcmd();
3059 }
3060
3061 static void
3062 redrawcmdprompt()
3063 {
3064 int i;
3065
3066 if (cmd_silent)
3067 return;
3068 if (ccline.cmdfirstc != NUL)
3069 msg_putchar(ccline.cmdfirstc);
3070 if (ccline.cmdprompt != NULL)
3071 {
3072 msg_puts_attr(ccline.cmdprompt, ccline.cmdattr);
3073 ccline.cmdindent = msg_col + (msg_row - cmdline_row) * Columns;
3074 /* do the reverse of set_cmdspos() */
3075 if (ccline.cmdfirstc != NUL)
3076 --ccline.cmdindent;
3077 }
3078 else
3079 for (i = ccline.cmdindent; i > 0; --i)
3080 msg_putchar(' ');
3081 }
3082
3083 /*
3084 * Redraw what is currently on the command line.
3085 */
3086 void
3087 redrawcmd()
3088 {
3089 if (cmd_silent)
3090 return;
3091
3092 /* when 'incsearch' is set there may be no command line while redrawing */
3093 if (ccline.cmdbuff == NULL)
3094 {
3095 windgoto(cmdline_row, 0);
3096 msg_clr_eos();
3097 return;
3098 }
3099
3100 msg_start();
3101 redrawcmdprompt();
3102
3103 /* Don't use more prompt, truncate the cmdline if it doesn't fit. */
3104 msg_no_more = TRUE;
3105 draw_cmdline(0, ccline.cmdlen);
3106 msg_clr_eos();
3107 msg_no_more = FALSE;
3108
3109 set_cmdspos_cursor();
3110
3111 /*
3112 * An emsg() before may have set msg_scroll. This is used in normal mode,
3113 * in cmdline mode we can reset them now.
3114 */
3115 msg_scroll = FALSE; /* next message overwrites cmdline */
3116
3117 /* Typing ':' at the more prompt may set skip_redraw. We don't want this
3118 * in cmdline mode */
3119 skip_redraw = FALSE;
3120 }
3121
3122 void
3123 compute_cmdrow()
3124 {
3125 if (exmode_active || msg_scrolled != 0)
3126 cmdline_row = Rows - 1;
3127 else
3128 cmdline_row = W_WINROW(lastwin) + lastwin->w_height
3129 + W_STATUS_HEIGHT(lastwin);
3130 }
3131
3132 static void
3133 cursorcmd()
3134 {
3135 if (cmd_silent)
3136 return;
3137
3138 #ifdef FEAT_RIGHTLEFT
3139 if (cmdmsg_rl)
3140 {
3141 msg_row = cmdline_row + (ccline.cmdspos / (int)(Columns - 1));
3142 msg_col = (int)Columns - (ccline.cmdspos % (int)(Columns - 1)) - 1;
3143 if (msg_row <= 0)
3144 msg_row = Rows - 1;
3145 }
3146 else
3147 #endif
3148 {
3149 msg_row = cmdline_row + (ccline.cmdspos / (int)Columns);
3150 msg_col = ccline.cmdspos % (int)Columns;
3151 if (msg_row >= Rows)
3152 msg_row = Rows - 1;
3153 }
3154
3155 windgoto(msg_row, msg_col);
3156 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
3157 redrawcmd_preedit();
3158 #endif
3159 #ifdef MCH_CURSOR_SHAPE
3160 mch_update_cursor();
3161 #endif
3162 }
3163
3164 void
3165 gotocmdline(clr)
3166 int clr;
3167 {
3168 msg_start();
3169 #ifdef FEAT_RIGHTLEFT
3170 if (cmdmsg_rl)
3171 msg_col = Columns - 1;
3172 else
3173 #endif
3174 msg_col = 0; /* always start in column 0 */
3175 if (clr) /* clear the bottom line(s) */
3176 msg_clr_eos(); /* will reset clear_cmdline */
3177 windgoto(cmdline_row, 0);
3178 }
3179
3180 /*
3181 * Check the word in front of the cursor for an abbreviation.
3182 * Called when the non-id character "c" has been entered.
3183 * When an abbreviation is recognized it is removed from the text with
3184 * backspaces and the replacement string is inserted, followed by "c".
3185 */
3186 static int
3187 ccheck_abbr(c)
3188 int c;
3189 {
3190 if (p_paste || no_abbr) /* no abbreviations or in paste mode */
3191 return FALSE;
3192
3193 return check_abbr(c, ccline.cmdbuff, ccline.cmdpos, 0);
3194 }
3195
3196 /*
3197 * Return FAIL if this is not an appropriate context in which to do
3198 * completion of anything, return OK if it is (even if there are no matches).
3199 * For the caller, this means that the character is just passed through like a
3200 * normal character (instead of being expanded). This allows :s/^I^D etc.
3201 */
3202 static int
3203 nextwild(xp, type, options)
3204 expand_T *xp;
3205 int type;
3206 int options; /* extra options for ExpandOne() */
3207 {
3208 int i, j;
3209 char_u *p1;
3210 char_u *p2;
3211 int oldlen;
3212 int difflen;
3213 int v;
3214
3215 if (xp->xp_numfiles == -1)
3216 {
3217 set_expand_context(xp);
3218 cmd_showtail = expand_showtail(xp);
3219 }
3220
3221 if (xp->xp_context == EXPAND_UNSUCCESSFUL)
3222 {
3223 beep_flush();
3224 return OK; /* Something illegal on command line */
3225 }
3226 if (xp->xp_context == EXPAND_NOTHING)
3227 {
3228 /* Caller can use the character as a normal char instead */
3229 return FAIL;
3230 }
3231
3232 MSG_PUTS("..."); /* show that we are busy */
3233 out_flush();
3234
3235 i = (int)(xp->xp_pattern - ccline.cmdbuff);
3236 oldlen = ccline.cmdpos - i;
3237
3238 if (type == WILD_NEXT || type == WILD_PREV)
3239 {
3240 /*
3241 * Get next/previous match for a previous expanded pattern.
3242 */
3243 p2 = ExpandOne(xp, NULL, NULL, 0, type);
3244 }
3245 else
3246 {
3247 /*
3248 * Translate string into pattern and expand it.
3249 */
3250 if ((p1 = addstar(&ccline.cmdbuff[i], oldlen, xp->xp_context)) == NULL)
3251 p2 = NULL;
3252 else
3253 {
3254 p2 = ExpandOne(xp, p1, vim_strnsave(&ccline.cmdbuff[i], oldlen),
3255 WILD_HOME_REPLACE|WILD_ADD_SLASH|WILD_SILENT|WILD_ESCAPE
3256 |options, type);
3257 vim_free(p1);
3258 /* longest match: make sure it is not shorter (happens with :help */
3259 if (p2 != NULL && type == WILD_LONGEST)
3260 {
3261 for (j = 0; j < oldlen; ++j)
3262 if (ccline.cmdbuff[i + j] == '*'
3263 || ccline.cmdbuff[i + j] == '?')
3264 break;
3265 if ((int)STRLEN(p2) < j)
3266 {
3267 vim_free(p2);
3268 p2 = NULL;
3269 }
3270 }
3271 }
3272 }
3273
3274 if (p2 != NULL && !got_int)
3275 {
3276 difflen = (int)STRLEN(p2) - oldlen;
3277 if (ccline.cmdlen + difflen > ccline.cmdbufflen - 4)
3278 {
3279 v = realloc_cmdbuff(ccline.cmdlen + difflen);
3280 xp->xp_pattern = ccline.cmdbuff + i;
3281 }
3282 else
3283 v = OK;
3284 if (v == OK)
3285 {
3286 mch_memmove(&ccline.cmdbuff[ccline.cmdpos + difflen],
3287 &ccline.cmdbuff[ccline.cmdpos],
3288 (size_t)(ccline.cmdlen - ccline.cmdpos + 1));
3289 mch_memmove(&ccline.cmdbuff[i], p2, STRLEN(p2));
3290 ccline.cmdlen += difflen;
3291 ccline.cmdpos += difflen;
3292 }
3293 }
3294 vim_free(p2);
3295
3296 redrawcmd();
3297 cursorcmd();
3298
3299 /* When expanding a ":map" command and no matches are found, assume that
3300 * the key is supposed to be inserted literally */
3301 if (xp->xp_context == EXPAND_MAPPINGS && p2 == NULL)
3302 return FAIL;
3303
3304 if (xp->xp_numfiles <= 0 && p2 == NULL)
3305 beep_flush();
3306 else if (xp->xp_numfiles == 1)
3307 /* free expanded pattern */
3308 (void)ExpandOne(xp, NULL, NULL, 0, WILD_FREE);
3309
3310 return OK;
3311 }
3312
3313 /*
3314 * Do wildcard expansion on the string 'str'.
3315 * Chars that should not be expanded must be preceded with a backslash.
3316 * Return a pointer to alloced memory containing the new string.
3317 * Return NULL for failure.
3318 *
3319 * "orig" is the originally expanded string, copied to allocated memory. It
3320 * should either be kept in orig_save or freed. When "mode" is WILD_NEXT or
3321 * WILD_PREV "orig" should be NULL.
3322 *
3323 * Results are cached in xp->xp_files and xp->xp_numfiles, except when "mode"
3324 * is WILD_EXPAND_FREE or WILD_ALL.
3325 *
3326 * mode = WILD_FREE: just free previously expanded matches
3327 * mode = WILD_EXPAND_FREE: normal expansion, do not keep matches
3328 * mode = WILD_EXPAND_KEEP: normal expansion, keep matches
3329 * mode = WILD_NEXT: use next match in multiple match, wrap to first
3330 * mode = WILD_PREV: use previous match in multiple match, wrap to first
3331 * mode = WILD_ALL: return all matches concatenated
3332 * mode = WILD_LONGEST: return longest matched part
3333 *
3334 * options = WILD_LIST_NOTFOUND: list entries without a match
3335 * options = WILD_HOME_REPLACE: do home_replace() for buffer names
3336 * options = WILD_USE_NL: Use '\n' for WILD_ALL
3337 * options = WILD_NO_BEEP: Don't beep for multiple matches
3338 * options = WILD_ADD_SLASH: add a slash after directory names
3339 * options = WILD_KEEP_ALL: don't remove 'wildignore' entries
3340 * options = WILD_SILENT: don't print warning messages
3341 * options = WILD_ESCAPE: put backslash before special chars
3342 *
3343 * The variables xp->xp_context and xp->xp_backslash must have been set!
3344 */
3345 char_u *
3346 ExpandOne(xp, str, orig, options, mode)
3347 expand_T *xp;
3348 char_u *str;
3349 char_u *orig; /* allocated copy of original of expanded string */
3350 int options;
3351 int mode;
3352 {
3353 char_u *ss = NULL;
3354 static int findex;
3355 static char_u *orig_save = NULL; /* kept value of orig */
3356 int i;
3357 long_u len;
3358 int non_suf_match; /* number without matching suffix */
3359
3360 /*
3361 * first handle the case of using an old match
3362 */
3363 if (mode == WILD_NEXT || mode == WILD_PREV)
3364 {
3365 if (xp->xp_numfiles > 0)
3366 {
3367 if (mode == WILD_PREV)
3368 {
3369 if (findex == -1)
3370 findex = xp->xp_numfiles;
3371 --findex;
3372 }
3373 else /* mode == WILD_NEXT */
3374 ++findex;
3375
3376 /*
3377 * When wrapping around, return the original string, set findex to
3378 * -1.
3379 */
3380 if (findex < 0)
3381 {
3382 if (orig_save == NULL)
3383 findex = xp->xp_numfiles - 1;
3384 else
3385 findex = -1;
3386 }
3387 if (findex >= xp->xp_numfiles)
3388 {
3389 if (orig_save == NULL)
3390 findex = 0;
3391 else
3392 findex = -1;
3393 }
3394 #ifdef FEAT_WILDMENU
3395 if (p_wmnu)
3396 win_redr_status_matches(xp, xp->xp_numfiles, xp->xp_files,
3397 findex, cmd_showtail);
3398 #endif
3399 if (findex == -1)
3400 return vim_strsave(orig_save);
3401 return vim_strsave(xp->xp_files[findex]);
3402 }
3403 else
3404 return NULL;
3405 }
3406
3407 /* free old names */
3408 if (xp->xp_numfiles != -1 && mode != WILD_ALL && mode != WILD_LONGEST)
3409 {
3410 FreeWild(xp->xp_numfiles, xp->xp_files);
3411 xp->xp_numfiles = -1;
3412 vim_free(orig_save);
3413 orig_save = NULL;
3414 }
3415 findex = 0;
3416
3417 if (mode == WILD_FREE) /* only release file name */
3418 return NULL;
3419
3420 if (xp->xp_numfiles == -1)
3421 {
3422 vim_free(orig_save);
3423 orig_save = orig;
3424
3425 /*
3426 * Do the expansion.
3427 */
3428 if (ExpandFromContext(xp, str, &xp->xp_numfiles, &xp->xp_files,
3429 options) == FAIL)
3430 {
3431 #ifdef FNAME_ILLEGAL
3432 /* Illegal file name has been silently skipped. But when there
3433 * are wildcards, the real problem is that there was no match,
3434 * causing the pattern to be added, which has illegal characters.
3435 */
3436 if (!(options & WILD_SILENT) && (options & WILD_LIST_NOTFOUND))
3437 EMSG2(_(e_nomatch2), str);
3438 #endif
3439 }
3440 else if (xp->xp_numfiles == 0)
3441 {
3442 if (!(options & WILD_SILENT))
3443 EMSG2(_(e_nomatch2), str);
3444 }
3445 else
3446 {
3447 /* Escape the matches for use on the command line. */
3448 ExpandEscape(xp, str, xp->xp_numfiles, xp->xp_files, options);
3449
3450 /*
3451 * Check for matching suffixes in file names.
3452 */
3453 if (mode != WILD_ALL && mode != WILD_LONGEST)
3454 {
3455 if (xp->xp_numfiles)
3456 non_suf_match = xp->xp_numfiles;
3457 else
3458 non_suf_match = 1;
3459 if ((xp->xp_context == EXPAND_FILES
3460 || xp->xp_context == EXPAND_DIRECTORIES)
3461 && xp->xp_numfiles > 1)
3462 {
3463 /*
3464 * More than one match; check suffix.
3465 * The files will have been sorted on matching suffix in
3466 * expand_wildcards, only need to check the first two.
3467 */
3468 non_suf_match = 0;
3469 for (i = 0; i < 2; ++i)
3470 if (match_suffix(xp->xp_files[i]))
3471 ++non_suf_match;
3472 }
3473 if (non_suf_match != 1)
3474 {
3475 /* Can we ever get here unless it's while expanding
3476 * interactively? If not, we can get rid of this all
3477 * together. Don't really want to wait for this message
3478 * (and possibly have to hit return to continue!).
3479 */
3480 if (!(options & WILD_SILENT))
3481 EMSG(_(e_toomany));
3482 else if (!(options & WILD_NO_BEEP))
3483 beep_flush();
3484 }
3485 if (!(non_suf_match != 1 && mode == WILD_EXPAND_FREE))
3486 ss = vim_strsave(xp->xp_files[0]);
3487 }
3488 }
3489 }
3490
3491 /* Find longest common part */
3492 if (mode == WILD_LONGEST && xp->xp_numfiles > 0)
3493 {
3494 for (len = 0; xp->xp_files[0][len]; ++len)
3495 {
3496 for (i = 0; i < xp->xp_numfiles; ++i)
3497 {
3498 #ifdef CASE_INSENSITIVE_FILENAME
3499 if (xp->xp_context == EXPAND_DIRECTORIES
3500 || xp->xp_context == EXPAND_FILES
3501 || xp->xp_context == EXPAND_SHELLCMD
3502 || xp->xp_context == EXPAND_BUFFERS)
3503 {
3504 if (TOLOWER_LOC(xp->xp_files[i][len]) !=
3505 TOLOWER_LOC(xp->xp_files[0][len]))
3506 break;
3507 }
3508 else
3509 #endif
3510 if (xp->xp_files[i][len] != xp->xp_files[0][len])
3511 break;
3512 }
3513 if (i < xp->xp_numfiles)
3514 {
3515 if (!(options & WILD_NO_BEEP))
3516 vim_beep();
3517 break;
3518 }
3519 }
3520 ss = alloc((unsigned)len + 1);
3521 if (ss)
3522 vim_strncpy(ss, xp->xp_files[0], (size_t)len);
3523 findex = -1; /* next p_wc gets first one */
3524 }
3525
3526 /* Concatenate all matching names */
3527 if (mode == WILD_ALL && xp->xp_numfiles > 0)
3528 {
3529 len = 0;
3530 for (i = 0; i < xp->xp_numfiles; ++i)
3531 len += (long_u)STRLEN(xp->xp_files[i]) + 1;
3532 ss = lalloc(len, TRUE);
3533 if (ss != NULL)
3534 {
3535 *ss = NUL;
3536 for (i = 0; i < xp->xp_numfiles; ++i)
3537 {
3538 STRCAT(ss, xp->xp_files[i]);
3539 if (i != xp->xp_numfiles - 1)
3540 STRCAT(ss, (options & WILD_USE_NL) ? "\n" : " ");
3541 }
3542 }
3543 }
3544
3545 if (mode == WILD_EXPAND_FREE || mode == WILD_ALL)
3546 ExpandCleanup(xp);
3547
3548 /* Free "orig" if it wasn't stored in "orig_save". */
3549 if (orig != orig_save)
3550 vim_free(orig);
3551
3552 return ss;
3553 }
3554
3555 /*
3556 * Prepare an expand structure for use.
3557 */
3558 void
3559 ExpandInit(xp)
3560 expand_T *xp;
3561 {
3562 xp->xp_backslash = XP_BS_NONE;
3563 #ifndef BACKSLASH_IN_FILENAME
3564 xp->xp_shell = FALSE;
3565 #endif
3566 xp->xp_numfiles = -1;
3567 xp->xp_files = NULL;
3568 #if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL) && defined(FEAT_CMDL_COMPL)
3569 xp->xp_arg = NULL;
3570 #endif
3571 }
3572
3573 /*
3574 * Cleanup an expand structure after use.
3575 */
3576 void
3577 ExpandCleanup(xp)
3578 expand_T *xp;
3579 {
3580 if (xp->xp_numfiles >= 0)
3581 {
3582 FreeWild(xp->xp_numfiles, xp->xp_files);
3583 xp->xp_numfiles = -1;
3584 }
3585 }
3586
3587 void
3588 ExpandEscape(xp, str, numfiles, files, options)
3589 expand_T *xp;
3590 char_u *str;
3591 int numfiles;
3592 char_u **files;
3593 int options;
3594 {
3595 int i;
3596 char_u *p;
3597
3598 /*
3599 * May change home directory back to "~"
3600 */
3601 if (options & WILD_HOME_REPLACE)
3602 tilde_replace(str, numfiles, files);
3603
3604 if (options & WILD_ESCAPE)
3605 {
3606 if (xp->xp_context == EXPAND_FILES
3607 || xp->xp_context == EXPAND_SHELLCMD
3608 || xp->xp_context == EXPAND_BUFFERS
3609 || xp->xp_context == EXPAND_DIRECTORIES)
3610 {
3611 /*
3612 * Insert a backslash into a file name before a space, \, %, #
3613 * and wildmatch characters, except '~'.
3614 */
3615 for (i = 0; i < numfiles; ++i)
3616 {
3617 /* for ":set path=" we need to escape spaces twice */
3618 if (xp->xp_backslash == XP_BS_THREE)
3619 {
3620 p = vim_strsave_escaped(files[i], (char_u *)" ");
3621 if (p != NULL)
3622 {
3623 vim_free(files[i]);
3624 files[i] = p;
3625 #if defined(BACKSLASH_IN_FILENAME)
3626 p = vim_strsave_escaped(files[i], (char_u *)" ");
3627 if (p != NULL)
3628 {
3629 vim_free(files[i]);
3630 files[i] = p;
3631 }
3632 #endif
3633 }
3634 }
3635 #ifdef BACKSLASH_IN_FILENAME
3636 {
3637 char_u buf[20];
3638 int j = 0;
3639
3640 /* Don't escape '[' and '{' if they are in 'isfname'. */
3641 for (p = PATH_ESC_CHARS; *p != NUL; ++p)
3642 if ((*p != '[' && *p != '{') || !vim_isfilec(*p))
3643 buf[j++] = *p;
3644 buf[j] = NUL;
3645 p = vim_strsave_escaped(files[i], buf);
3646 }
3647 #else
3648 p = vim_strsave_escaped(files[i],
3649 xp->xp_shell ? SHELL_ESC_CHARS : PATH_ESC_CHARS);
3650 #endif
3651 if (p != NULL)
3652 {
3653 vim_free(files[i]);
3654 files[i] = p;
3655 }
3656
3657 /* If 'str' starts with "\~", replace "~" at start of
3658 * files[i] with "\~". */
3659 if (str[0] == '\\' && str[1] == '~' && files[i][0] == '~')
3660 escape_fname(&files[i]);
3661 }
3662 xp->xp_backslash = XP_BS_NONE;
3663
3664 /* If the first file starts with a '+' escape it. Otherwise it
3665 * could be seen as "+cmd". */
3666 if (*files[0] == '+')
3667 escape_fname(&files[0]);
3668 }
3669 else if (xp->xp_context == EXPAND_TAGS)
3670 {
3671 /*
3672 * Insert a backslash before characters in a tag name that
3673 * would terminate the ":tag" command.
3674 */
3675 for (i = 0; i < numfiles; ++i)
3676 {
3677 p = vim_strsave_escaped(files[i], (char_u *)"\\|\"");
3678 if (p != NULL)
3679 {
3680 vim_free(files[i]);
3681 files[i] = p;
3682 }
3683 }
3684 }
3685 }
3686 }
3687
3688 /*
3689 * Put a backslash before the file name in "pp", which is in allocated memory.
3690 */
3691 static void
3692 escape_fname(pp)
3693 char_u **pp;
3694 {
3695 char_u *p;
3696
3697 p = alloc((unsigned)(STRLEN(*pp) + 2));
3698 if (p != NULL)
3699 {
3700 p[0] = '\\';
3701 STRCPY(p + 1, *pp);
3702 vim_free(*pp);
3703 *pp = p;
3704 }
3705 }
3706
3707 /*
3708 * For each file name in files[num_files]:
3709 * If 'orig_pat' starts with "~/", replace the home directory with "~".
3710 */
3711 void
3712 tilde_replace(orig_pat, num_files, files)
3713 char_u *orig_pat;
3714 int num_files;
3715 char_u **files;
3716 {
3717 int i;
3718 char_u *p;
3719
3720 if (orig_pat[0] == '~' && vim_ispathsep(orig_pat[1]))
3721 {
3722 for (i = 0; i < num_files; ++i)
3723 {
3724 p = home_replace_save(NULL, files[i]);
3725 if (p != NULL)
3726 {
3727 vim_free(files[i]);
3728 files[i] = p;
3729 }
3730 }
3731 }
3732 }
3733
3734 /*
3735 * Show all matches for completion on the command line.
3736 * Returns EXPAND_NOTHING when the character that triggered expansion should
3737 * be inserted like a normal character.
3738 */
3739 /*ARGSUSED*/
3740 static int
3741 showmatches(xp, wildmenu)
3742 expand_T *xp;
3743 int wildmenu;
3744 {
3745 #define L_SHOWFILE(m) (showtail ? sm_gettail(files_found[m]) : files_found[m])
3746 int num_files;
3747 char_u **files_found;
3748 int i, j, k;
3749 int maxlen;
3750 int lines;
3751 int columns;
3752 char_u *p;
3753 int lastlen;
3754 int attr;
3755 int showtail;
3756
3757 if (xp->xp_numfiles == -1)
3758 {
3759 set_expand_context(xp);
3760 i = expand_cmdline(xp, ccline.cmdbuff, ccline.cmdpos,
3761 &num_files, &files_found);
3762 showtail = expand_showtail(xp);
3763 if (i != EXPAND_OK)
3764 return i;
3765
3766 }
3767 else
3768 {
3769 num_files = xp->xp_numfiles;
3770 files_found = xp->xp_files;
3771 showtail = cmd_showtail;
3772 }
3773
3774 #ifdef FEAT_WILDMENU
3775 if (!wildmenu)
3776 {
3777 #endif
3778 msg_didany = FALSE; /* lines_left will be set */
3779 msg_start(); /* prepare for paging */
3780 msg_putchar('\n');
3781 out_flush();
3782 cmdline_row = msg_row;
3783 msg_didany = FALSE; /* lines_left will be set again */
3784 msg_start(); /* prepare for paging */
3785 #ifdef FEAT_WILDMENU
3786 }
3787 #endif
3788
3789 if (got_int)
3790 got_int = FALSE; /* only int. the completion, not the cmd line */
3791 #ifdef FEAT_WILDMENU
3792 else if (wildmenu)
3793 win_redr_status_matches(xp, num_files, files_found, 0, showtail);
3794 #endif
3795 else
3796 {
3797 /* find the length of the longest file name */
3798 maxlen = 0;
3799 for (i = 0; i < num_files; ++i)
3800 {
3801 if (!showtail && (xp->xp_context == EXPAND_FILES
3802 || xp->xp_context == EXPAND_SHELLCMD
3803 || xp->xp_context == EXPAND_BUFFERS))
3804 {
3805 home_replace(NULL, files_found[i], NameBuff, MAXPATHL, TRUE);
3806 j = vim_strsize(NameBuff);
3807 }
3808 else
3809 j = vim_strsize(L_SHOWFILE(i));
3810 if (j > maxlen)
3811 maxlen = j;
3812 }
3813
3814 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3815 lines = num_files;
3816 else
3817 {
3818 /* compute the number of columns and lines for the listing */
3819 maxlen += 2; /* two spaces between file names */
3820 columns = ((int)Columns + 2) / maxlen;
3821 if (columns < 1)
3822 columns = 1;
3823 lines = (num_files + columns - 1) / columns;
3824 }
3825
3826 attr = hl_attr(HLF_D); /* find out highlighting for directories */
3827
3828 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3829 {
3830 MSG_PUTS_ATTR(_("tagname"), hl_attr(HLF_T));
3831 msg_clr_eos();
3832 msg_advance(maxlen - 3);
3833 MSG_PUTS_ATTR(_(" kind file\n"), hl_attr(HLF_T));
3834 }
3835
3836 /* list the files line by line */
3837 for (i = 0; i < lines; ++i)
3838 {
3839 lastlen = 999;
3840 for (k = i; k < num_files; k += lines)
3841 {
3842 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3843 {
3844 msg_outtrans_attr(files_found[k], hl_attr(HLF_D));
3845 p = files_found[k] + STRLEN(files_found[k]) + 1;
3846 msg_advance(maxlen + 1);
3847 msg_puts(p);
3848 msg_advance(maxlen + 3);
3849 msg_puts_long_attr(p + 2, hl_attr(HLF_D));
3850 break;
3851 }
3852 for (j = maxlen - lastlen; --j >= 0; )
3853 msg_putchar(' ');
3854 if (xp->xp_context == EXPAND_FILES
3855 || xp->xp_context == EXPAND_SHELLCMD
3856 || xp->xp_context == EXPAND_BUFFERS)
3857 {
3858 /* highlight directories */
3859 j = (mch_isdir(files_found[k]));
3860 if (showtail)
3861 p = L_SHOWFILE(k);
3862 else
3863 {
3864 home_replace(NULL, files_found[k], NameBuff, MAXPATHL,
3865 TRUE);
3866 p = NameBuff;
3867 }
3868 }
3869 else
3870 {
3871 j = FALSE;
3872 p = L_SHOWFILE(k);
3873 }
3874 lastlen = msg_outtrans_attr(p, j ? attr : 0);
3875 }
3876 if (msg_col > 0) /* when not wrapped around */
3877 {
3878 msg_clr_eos();
3879 msg_putchar('\n');
3880 }
3881 out_flush(); /* show one line at a time */
3882 if (got_int)
3883 {
3884 got_int = FALSE;
3885 break;
3886 }
3887 }
3888
3889 /*
3890 * we redraw the command below the lines that we have just listed
3891 * This is a bit tricky, but it saves a lot of screen updating.
3892 */
3893 cmdline_row = msg_row; /* will put it back later */
3894 }
3895
3896 if (xp->xp_numfiles == -1)
3897 FreeWild(num_files, files_found);
3898
3899 return EXPAND_OK;
3900 }
3901
3902 /*
3903 * Private gettail for showmatches() (and win_redr_status_matches()):
3904 * Find tail of file name path, but ignore trailing "/".
3905 */
3906 char_u *
3907 sm_gettail(s)
3908 char_u *s;
3909 {
3910 char_u *p;
3911 char_u *t = s;
3912 int had_sep = FALSE;
3913
3914 for (p = s; *p != NUL; )
3915 {
3916 if (vim_ispathsep(*p)
3917 #ifdef BACKSLASH_IN_FILENAME
3918 && !rem_backslash(p)
3919 #endif
3920 )
3921 had_sep = TRUE;
3922 else if (had_sep)
3923 {
3924 t = p;
3925 had_sep = FALSE;
3926 }
3927 mb_ptr_adv(p);
3928 }
3929 return t;
3930 }
3931
3932 /*
3933 * Return TRUE if we only need to show the tail of completion matches.
3934 * When not completing file names or there is a wildcard in the path FALSE is
3935 * returned.
3936 */
3937 static int
3938 expand_showtail(xp)
3939 expand_T *xp;
3940 {
3941 char_u *s;
3942 char_u *end;
3943
3944 /* When not completing file names a "/" may mean something different. */
3945 if (xp->xp_context != EXPAND_FILES
3946 && xp->xp_context != EXPAND_SHELLCMD
3947 && xp->xp_context != EXPAND_DIRECTORIES)
3948 return FALSE;
3949
3950 end = gettail(xp->xp_pattern);
3951 if (end == xp->xp_pattern) /* there is no path separator */
3952 return FALSE;
3953
3954 for (s = xp->xp_pattern; s < end; s++)
3955 {
3956 /* Skip escaped wildcards. Only when the backslash is not a path
3957 * separator, on DOS the '*' "path\*\file" must not be skipped. */
3958 if (rem_backslash(s))
3959 ++s;
3960 else if (vim_strchr((char_u *)"*?[", *s) != NULL)
3961 return FALSE;
3962 }
3963 return TRUE;
3964 }
3965
3966 /*
3967 * Prepare a string for expansion.
3968 * When expanding file names: The string will be used with expand_wildcards().
3969 * Copy the file name into allocated memory and add a '*' at the end.
3970 * When expanding other names: The string will be used with regcomp(). Copy
3971 * the name into allocated memory and prepend "^".
3972 */
3973 char_u *
3974 addstar(fname, len, context)
3975 char_u *fname;
3976 int len;
3977 int context; /* EXPAND_FILES etc. */
3978 {
3979 char_u *retval;
3980 int i, j;
3981 int new_len;
3982 char_u *tail;
3983
3984 if (context != EXPAND_FILES
3985 && context != EXPAND_SHELLCMD
3986 && context != EXPAND_DIRECTORIES)
3987 {
3988 /*
3989 * Matching will be done internally (on something other than files).
3990 * So we convert the file-matching-type wildcards into our kind for
3991 * use with vim_regcomp(). First work out how long it will be:
3992 */
3993
3994 /* For help tags the translation is done in find_help_tags().
3995 * For a tag pattern starting with "/" no translation is needed. */
3996 if (context == EXPAND_HELP
3997 || context == EXPAND_COLORS
3998 || context == EXPAND_COMPILER
3999 || (context == EXPAND_TAGS && fname[0] == '/'))
4000 retval = vim_strnsave(fname, len);
4001 else
4002 {
4003 new_len = len + 2; /* +2 for '^' at start, NUL at end */
4004 for (i = 0; i < len; i++)
4005 {
4006 if (fname[i] == '*' || fname[i] == '~')
4007 new_len++; /* '*' needs to be replaced by ".*"
4008 '~' needs to be replaced by "\~" */
4009
4010 /* Buffer names are like file names. "." should be literal */
4011 if (context == EXPAND_BUFFERS && fname[i] == '.')
4012 new_len++; /* "." becomes "\." */
4013
4014 /* Custom expansion takes care of special things, match
4015 * backslashes literally (perhaps also for other types?) */
4016 if ((context == EXPAND_USER_DEFINED
4017 || context == EXPAND_USER_LIST) && fname[i] == '\\')
4018 new_len++; /* '\' becomes "\\" */
4019 }
4020 retval = alloc(new_len);
4021 if (retval != NULL)
4022 {
4023 retval[0] = '^';
4024 j = 1;
4025 for (i = 0; i < len; i++, j++)
4026 {
4027 /* Skip backslash. But why? At least keep it for custom
4028 * expansion. */
4029 if (context != EXPAND_USER_DEFINED
4030 && context != EXPAND_USER_LIST
4031 && fname[i] == '\\'
4032 && ++i == len)
4033 break;
4034
4035 switch (fname[i])
4036 {
4037 case '*': retval[j++] = '.';
4038 break;
4039 case '~': retval[j++] = '\\';
4040 break;
4041 case '?': retval[j] = '.';
4042 continue;
4043 case '.': if (context == EXPAND_BUFFERS)
4044 retval[j++] = '\\';
4045 break;
4046 case '\\': if (context == EXPAND_USER_DEFINED
4047 || context == EXPAND_USER_LIST)
4048 retval[j++] = '\\';
4049 break;
4050 }
4051 retval[j] = fname[i];
4052 }
4053 retval[j] = NUL;
4054 }
4055 }
4056 }
4057 else
4058 {
4059 retval = alloc(len + 4);
4060 if (retval != NULL)
4061 {
4062 vim_strncpy(retval, fname, len);
4063
4064 /*
4065 * Don't add a star to *, ~, ~user, $var or `cmd`.
4066 * * would become **, which walks the whole tree.
4067 * ~ would be at the start of the file name, but not the tail.
4068 * $ could be anywhere in the tail.
4069 * ` could be anywhere in the file name.
4070 */
4071 tail = gettail(retval);
4072 if ((*retval != '~' || tail != retval)
4073 && (len == 0 || retval[len - 1] != '*')
4074 && vim_strchr(tail, '$') == NULL
4075 && vim_strchr(retval, '`') == NULL)
4076 retval[len++] = '*';
4077 retval[len] = NUL;
4078 }
4079 }
4080 return retval;
4081 }
4082
4083 /*
4084 * Must parse the command line so far to work out what context we are in.
4085 * Completion can then be done based on that context.
4086 * This routine sets the variables:
4087 * xp->xp_pattern The start of the pattern to be expanded within
4088 * the command line (ends at the cursor).
4089 * xp->xp_context The type of thing to expand. Will be one of:
4090 *
4091 * EXPAND_UNSUCCESSFUL Used sometimes when there is something illegal on
4092 * the command line, like an unknown command. Caller
4093 * should beep.
4094 * EXPAND_NOTHING Unrecognised context for completion, use char like
4095 * a normal char, rather than for completion. eg
4096 * :s/^I/
4097 * EXPAND_COMMANDS Cursor is still touching the command, so complete
4098 * it.
4099 * EXPAND_BUFFERS Complete file names for :buf and :sbuf commands.
4100 * EXPAND_FILES After command with XFILE set, or after setting
4101 * with P_EXPAND set. eg :e ^I, :w>>^I
4102 * EXPAND_DIRECTORIES In some cases this is used instead of the latter
4103 * when we know only directories are of interest. eg
4104 * :set dir=^I
4105 * EXPAND_SHELLCMD After ":!cmd", ":r !cmd" or ":w !cmd".
4106 * EXPAND_SETTINGS Complete variable names. eg :set d^I
4107 * EXPAND_BOOL_SETTINGS Complete boolean variables only, eg :set no^I
4108 * EXPAND_TAGS Complete tags from the files in p_tags. eg :ta a^I
4109 * EXPAND_TAGS_LISTFILES As above, but list filenames on ^D, after :tselect
4110 * EXPAND_HELP Complete tags from the file 'helpfile'/tags
4111 * EXPAND_EVENTS Complete event names
4112 * EXPAND_SYNTAX Complete :syntax command arguments
4113 * EXPAND_HIGHLIGHT Complete highlight (syntax) group names
4114 * EXPAND_AUGROUP Complete autocommand group names
4115 * EXPAND_USER_VARS Complete user defined variable names, eg :unlet a^I
4116 * EXPAND_MAPPINGS Complete mapping and abbreviation names,
4117 * eg :unmap a^I , :cunab x^I
4118 * EXPAND_FUNCTIONS Complete internal or user defined function names,
4119 * eg :call sub^I
4120 * EXPAND_USER_FUNC Complete user defined function names, eg :delf F^I
4121 * EXPAND_EXPRESSION Complete internal or user defined function/variable
4122 * names in expressions, eg :while s^I
4123 * EXPAND_ENV_VARS Complete environment variable names
4124 */
4125 static void
4126 set_expand_context(xp)
4127 expand_T *xp;
4128 {
4129 /* only expansion for ':', '>' and '=' command-lines */
4130 if (ccline.cmdfirstc != ':'
4131 #ifdef FEAT_EVAL
4132 && ccline.cmdfirstc != '>' && ccline.cmdfirstc != '='
4133 && !ccline.input_fn
4134 #endif
4135 )
4136 {
4137 xp->xp_context = EXPAND_NOTHING;
4138 return;
4139 }
4140 set_cmd_context(xp, ccline.cmdbuff, ccline.cmdlen, ccline.cmdpos);
4141 }
4142
4143 void
4144 set_cmd_context(xp, str, len, col)
4145 expand_T *xp;
4146 char_u *str; /* start of command line */
4147 int len; /* length of command line (excl. NUL) */
4148 int col; /* position of cursor */
4149 {
4150 int old_char = NUL;
4151 char_u *nextcomm;
4152
4153 /*
4154 * Avoid a UMR warning from Purify, only save the character if it has been
4155 * written before.
4156 */
4157 if (col < len)
4158 old_char = str[col];
4159 str[col] = NUL;
4160 nextcomm = str;
4161
4162 #ifdef FEAT_EVAL
4163 if (ccline.cmdfirstc == '=')
4164 {
4165 # ifdef FEAT_CMDL_COMPL
4166 /* pass CMD_SIZE because there is no real command */
4167 set_context_for_expression(xp, str, CMD_SIZE);
4168 # endif
4169 }
4170 else if (ccline.input_fn)
4171 {
4172 xp->xp_context = ccline.xp_context;
4173 xp->xp_pattern = ccline.cmdbuff;
4174 # if defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)
4175 xp->xp_arg = ccline.xp_arg;
4176 # endif
4177 }
4178 else
4179 #endif
4180 while (nextcomm != NULL)
4181 nextcomm = set_one_cmd_context(xp, nextcomm);
4182
4183 str[col] = old_char;
4184 }
4185
4186 /*
4187 * Expand the command line "str" from context "xp".
4188 * "xp" must have been set by set_cmd_context().
4189 * xp->xp_pattern points into "str", to where the text that is to be expanded
4190 * starts.
4191 * Returns EXPAND_UNSUCCESSFUL when there is something illegal before the
4192 * cursor.
4193 * Returns EXPAND_NOTHING when there is nothing to expand, might insert the
4194 * key that triggered expansion literally.
4195 * Returns EXPAND_OK otherwise.
4196 */
4197 int
4198 expand_cmdline(xp, str, col, matchcount, matches)
4199 expand_T *xp;
4200 char_u *str; /* start of command line */
4201 int col; /* position of cursor */
4202 int *matchcount; /* return: nr of matches */
4203 char_u ***matches; /* return: array of pointers to matches */
4204 {
4205 char_u *file_str = NULL;
4206
4207 if (xp->xp_context == EXPAND_UNSUCCESSFUL)
4208 {
4209 beep_flush();
4210 return EXPAND_UNSUCCESSFUL; /* Something illegal on command line */
4211 }
4212 if (xp->xp_context == EXPAND_NOTHING)
4213 {
4214 /* Caller can use the character as a normal char instead */
4215 return EXPAND_NOTHING;
4216 }
4217
4218 /* add star to file name, or convert to regexp if not exp. files. */
4219 file_str = addstar(xp->xp_pattern,
4220 (int)(str + col - xp->xp_pattern), xp->xp_context);
4221 if (file_str == NULL)
4222 return EXPAND_UNSUCCESSFUL;
4223
4224 /* find all files that match the description */
4225 if (ExpandFromContext(xp, file_str, matchcount, matches,
4226 WILD_ADD_SLASH|WILD_SILENT) == FAIL)
4227 {
4228 *matchcount = 0;
4229 *matches = NULL;
4230 }
4231 vim_free(file_str);
4232
4233 return EXPAND_OK;
4234 }
4235
4236 #ifdef FEAT_MULTI_LANG
4237 /*
4238 * Cleanup matches for help tags: remove "@en" if "en" is the only language.
4239 */
4240 static void cleanup_help_tags __ARGS((int num_file, char_u **file));
4241
4242 static void
4243 cleanup_help_tags(num_file, file)
4244 int num_file;
4245 char_u **file;
4246 {
4247 int i, j;
4248 int len;
4249
4250 for (i = 0; i < num_file; ++i)
4251 {
4252 len = (int)STRLEN(file[i]) - 3;
4253 if (len > 0 && STRCMP(file[i] + len, "@en") == 0)
4254 {
4255 /* Sorting on priority means the same item in another language may
4256 * be anywhere. Search all items for a match up to the "@en". */
4257 for (j = 0; j < num_file; ++j)
4258 if (j != i
4259 && (int)STRLEN(file[j]) == len + 3
4260 && STRNCMP(file[i], file[j], len + 1) == 0)
4261 break;
4262 if (j == num_file)
4263 file[i][len] = NUL;
4264 }
4265 }
4266 }
4267 #endif
4268
4269 /*
4270 * Do the expansion based on xp->xp_context and "pat".
4271 */
4272 static int
4273 ExpandFromContext(xp, pat, num_file, file, options)
4274 expand_T *xp;
4275 char_u *pat;
4276 int *num_file;
4277 char_u ***file;
4278 int options;
4279 {
4280 #ifdef FEAT_CMDL_COMPL
4281 regmatch_T regmatch;
4282 #endif
4283 int ret;
4284 int flags;
4285
4286 flags = EW_DIR; /* include directories */
4287 if (options & WILD_LIST_NOTFOUND)
4288 flags |= EW_NOTFOUND;
4289 if (options & WILD_ADD_SLASH)
4290 flags |= EW_ADDSLASH;
4291 if (options & WILD_KEEP_ALL)
4292 flags |= EW_KEEPALL;
4293 if (options & WILD_SILENT)
4294 flags |= EW_SILENT;
4295
4296 if (xp->xp_context == EXPAND_FILES || xp->xp_context == EXPAND_DIRECTORIES)
4297 {
4298 /*
4299 * Expand file or directory names.
4300 */
4301 int free_pat = FALSE;
4302 int i;
4303
4304 /* for ":set path=" and ":set tags=" halve backslashes for escaped
4305 * space */
4306 if (xp->xp_backslash != XP_BS_NONE)
4307 {
4308 free_pat = TRUE;
4309 pat = vim_strsave(pat);
4310 for (i = 0; pat[i]; ++i)
4311 if (pat[i] == '\\')
4312 {
4313 if (xp->xp_backslash == XP_BS_THREE
4314 && pat[i + 1] == '\\'
4315 && pat[i + 2] == '\\'
4316 && pat[i + 3] == ' ')
4317 mch_memmove(pat + i, pat + i + 3,
4318 STRLEN(pat + i + 3) + 1);
4319 if (xp->xp_backslash == XP_BS_ONE
4320 && pat[i + 1] == ' ')
4321 mch_memmove(pat + i, pat + i + 1, STRLEN(pat + i));
4322 }
4323 }
4324
4325 if (xp->xp_context == EXPAND_FILES)
4326 flags |= EW_FILE;
4327 else
4328 flags = (flags | EW_DIR) & ~EW_FILE;
4329 ret = expand_wildcards(1, &pat, num_file, file, flags);
4330 if (free_pat)
4331 vim_free(pat);
4332 return ret;
4333 }
4334
4335 *file = (char_u **)"";
4336 *num_file = 0;
4337 if (xp->xp_context == EXPAND_HELP)
4338 {
4339 if (find_help_tags(pat, num_file, file, FALSE) == OK)
4340 {
4341 #ifdef FEAT_MULTI_LANG
4342 cleanup_help_tags(*num_file, *file);
4343 #endif
4344 return OK;
4345 }
4346 return FAIL;
4347 }
4348
4349 #ifndef FEAT_CMDL_COMPL
4350 return FAIL;
4351 #else
4352 if (xp->xp_context == EXPAND_SHELLCMD)
4353 return expand_shellcmd(pat, num_file, file, flags);
4354 if (xp->xp_context == EXPAND_OLD_SETTING)
4355 return ExpandOldSetting(num_file, file);
4356 if (xp->xp_context == EXPAND_BUFFERS)
4357 return ExpandBufnames(pat, num_file, file, options);
4358 if (xp->xp_context == EXPAND_TAGS
4359 || xp->xp_context == EXPAND_TAGS_LISTFILES)
4360 return expand_tags(xp->xp_context == EXPAND_TAGS, pat, num_file, file);
4361 if (xp->xp_context == EXPAND_COLORS)
4362 return ExpandRTDir(pat, num_file, file, "colors");
4363 if (xp->xp_context == EXPAND_COMPILER)
4364 return ExpandRTDir(pat, num_file, file, "compiler");
4365 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4366 if (xp->xp_context == EXPAND_USER_LIST)
4367 return ExpandUserList(xp, num_file, file);
4368 # endif
4369
4370 regmatch.regprog = vim_regcomp(pat, p_magic ? RE_MAGIC : 0);
4371 if (regmatch.regprog == NULL)
4372 return FAIL;
4373
4374 /* set ignore-case according to p_ic, p_scs and pat */
4375 regmatch.rm_ic = ignorecase(pat);
4376
4377 if (xp->xp_context == EXPAND_SETTINGS
4378 || xp->xp_context == EXPAND_BOOL_SETTINGS)
4379 ret = ExpandSettings(xp, &regmatch, num_file, file);
4380 else if (xp->xp_context == EXPAND_MAPPINGS)
4381 ret = ExpandMappings(&regmatch, num_file, file);
4382 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4383 else if (xp->xp_context == EXPAND_USER_DEFINED)
4384 ret = ExpandUserDefined(xp, &regmatch, num_file, file);
4385 # endif
4386 else
4387 {
4388 static struct expgen
4389 {
4390 int context;
4391 char_u *((*func)__ARGS((expand_T *, int)));
4392 int ic;
4393 } tab[] =
4394 {
4395 {EXPAND_COMMANDS, get_command_name, FALSE},
4396 #ifdef FEAT_USR_CMDS
4397 {EXPAND_USER_COMMANDS, get_user_commands, FALSE},
4398 {EXPAND_USER_CMD_FLAGS, get_user_cmd_flags, FALSE},
4399 {EXPAND_USER_NARGS, get_user_cmd_nargs, FALSE},
4400 {EXPAND_USER_COMPLETE, get_user_cmd_complete, FALSE},
4401 #endif
4402 #ifdef FEAT_EVAL
4403 {EXPAND_USER_VARS, get_user_var_name, FALSE},
4404 {EXPAND_FUNCTIONS, get_function_name, FALSE},
4405 {EXPAND_USER_FUNC, get_user_func_name, FALSE},
4406 {EXPAND_EXPRESSION, get_expr_name, FALSE},
4407 #endif
4408 #ifdef FEAT_MENU
4409 {EXPAND_MENUS, get_menu_name, FALSE},
4410 {EXPAND_MENUNAMES, get_menu_names, FALSE},
4411 #endif
4412 #ifdef FEAT_SYN_HL
4413 {EXPAND_SYNTAX, get_syntax_name, TRUE},
4414 #endif
4415 {EXPAND_HIGHLIGHT, get_highlight_name, TRUE},
4416 #ifdef FEAT_AUTOCMD
4417 {EXPAND_EVENTS, get_event_name, TRUE},
4418 {EXPAND_AUGROUP, get_augroup_name, TRUE},
4419 #endif
4420 #if (defined(HAVE_LOCALE_H) || defined(X_LOCALE)) \
4421 && (defined(FEAT_GETTEXT) || defined(FEAT_MBYTE))
4422 {EXPAND_LANGUAGE, get_lang_arg, TRUE},
4423 #endif
4424 {EXPAND_ENV_VARS, get_env_name, TRUE},
4425 };
4426 int i;
4427
4428 /*
4429 * Find a context in the table and call the ExpandGeneric() with the
4430 * right function to do the expansion.
4431 */
4432 ret = FAIL;
4433 for (i = 0; i < sizeof(tab) / sizeof(struct expgen); ++i)
4434 if (xp->xp_context == tab[i].context)
4435 {
4436 if (tab[i].ic)
4437 regmatch.rm_ic = TRUE;
4438 ret = ExpandGeneric(xp, &regmatch, num_file, file, tab[i].func);
4439 break;
4440 }
4441 }
4442
4443 vim_free(regmatch.regprog);
4444
4445 return ret;
4446 #endif /* FEAT_CMDL_COMPL */
4447 }
4448
4449 #if defined(FEAT_CMDL_COMPL) || defined(PROTO)
4450 /*
4451 * Expand a list of names.
4452 *
4453 * Generic function for command line completion. It calls a function to
4454 * obtain strings, one by one. The strings are matched against a regexp
4455 * program. Matching strings are copied into an array, which is returned.
4456 *
4457 * Returns OK when no problems encountered, FAIL for error (out of memory).
4458 */
4459 int
4460 ExpandGeneric(xp, regmatch, num_file, file, func)
4461 expand_T *xp;
4462 regmatch_T *regmatch;
4463 int *num_file;
4464 char_u ***file;
4465 char_u *((*func)__ARGS((expand_T *, int)));
4466 /* returns a string from the list */
4467 {
4468 int i;
4469 int count = 0;
4470 int round;
4471 char_u *str;
4472
4473 /* do this loop twice:
4474 * round == 0: count the number of matching names
4475 * round == 1: copy the matching names into allocated memory
4476 */
4477 for (round = 0; round <= 1; ++round)
4478 {
4479 for (i = 0; ; ++i)
4480 {
4481 str = (*func)(xp, i);
4482 if (str == NULL) /* end of list */
4483 break;
4484 if (*str == NUL) /* skip empty strings */
4485 continue;
4486
4487 if (vim_regexec(regmatch, str, (colnr_T)0))
4488 {
4489 if (round)
4490 {
4491 str = vim_strsave_escaped(str, (char_u *)" \t\\.");
4492 (*file)[count] = str;
4493 #ifdef FEAT_MENU
4494 if (func == get_menu_names && str != NULL)
4495 {
4496 /* test for separator added by get_menu_names() */
4497 str += STRLEN(str) - 1;
4498 if (*str == '\001')
4499 *str = '.';
4500 }
4501 #endif
4502 }
4503 ++count;
4504 }
4505 }
4506 if (round == 0)
4507 {
4508 if (count == 0)
4509 return OK;
4510 *num_file = count;
4511 *file = (char_u **)alloc((unsigned)(count * sizeof(char_u *)));
4512 if (*file == NULL)
4513 {
4514 *file = (char_u **)"";
4515 return FAIL;
4516 }
4517 count = 0;
4518 }
4519 }
4520
4521 /* Sort the results. Keep menu's in the specified order. */
4522 if (xp->xp_context != EXPAND_MENUNAMES && xp->xp_context != EXPAND_MENUS)
4523 sort_strings(*file, *num_file);
4524
4525 #ifdef FEAT_CMDL_COMPL
4526 /* Reset the variables used for special highlight names expansion, so that
4527 * they don't show up when getting normal highlight names by ID. */
4528 reset_expand_highlight();
4529 #endif
4530
4531 return OK;
4532 }
4533
4534 /*
4535 * Complete a shell command.
4536 * Returns FAIL or OK;
4537 */
4538 static int
4539 expand_shellcmd(filepat, num_file, file, flagsarg)
4540 char_u *filepat; /* pattern to match with command names */
4541 int *num_file; /* return: number of matches */
4542 char_u ***file; /* return: array with matches */
4543 int flagsarg; /* EW_ flags */
4544 {
4545 char_u *pat;
4546 int i;
4547 char_u *path;
4548 int mustfree = FALSE;
4549 garray_T ga;
4550 char_u *buf = alloc(MAXPATHL);
4551 size_t l;
4552 char_u *s, *e;
4553 int flags = flagsarg;
4554 int ret;
4555
4556 if (buf == NULL)
4557 return FAIL;
4558
4559 /* for ":set path=" and ":set tags=" halve backslashes for escaped
4560 * space */
4561 pat = vim_strsave(filepat);
4562 for (i = 0; pat[i]; ++i)
4563 if (pat[i] == '\\' && pat[i + 1] == ' ')
4564 mch_memmove(pat + i, pat + i + 1, STRLEN(pat + i));
4565
4566 flags |= EW_FILE | EW_EXEC;
4567
4568 /* For an absolute name we don't use $PATH. */
4569 if (mch_isFullName(pat))
4570 path = (char_u *)" ";
4571 else if ((pat[0] == '.' && (vim_ispathsep(pat[1])
4572 || (pat[1] == '.' && vim_ispathsep(pat[2])))))
4573 path = (char_u *)".";
4574 else
4575 path = vim_getenv((char_u *)"PATH", &mustfree);
4576
4577 /*
4578 * Go over all directories in $PATH. Expand matches in that directory and
4579 * collect them in "ga".
4580 */
4581 ga_init2(&ga, (int)sizeof(char *), 10);
4582 for (s = path; *s != NUL; s = e)
4583 {
4584 if (*s == ' ')
4585 ++s; /* Skip space used for absolute path name. */
4586
4587 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
4588 e = vim_strchr(s, ';');
4589 #else
4590 e = vim_strchr(s, ':');
4591 #endif
4592 if (e == NULL)
4593 e = s + STRLEN(s);
4594
4595 l = e - s;
4596 if (l > MAXPATHL - 5)
4597 break;
4598 vim_strncpy(buf, s, l);
4599 add_pathsep(buf);
4600 l = STRLEN(buf);
4601 vim_strncpy(buf + l, pat, MAXPATHL - 1 - l);
4602
4603 /* Expand matches in one directory of $PATH. */
4604 ret = expand_wildcards(1, &buf, num_file, file, flags);
4605 if (ret == OK)
4606 {
4607 if (ga_grow(&ga, *num_file) == FAIL)
4608 FreeWild(*num_file, *file);
4609 else
4610 {
4611 for (i = 0; i < *num_file; ++i)
4612 {
4613 s = (*file)[i];
4614 if (STRLEN(s) > l)
4615 {
4616 /* Remove the path again. */
4617 mch_memmove(s, s + l, STRLEN(s + l) + 1);
4618 ((char_u **)ga.ga_data)[ga.ga_len++] = s;
4619 }
4620 else
4621 vim_free(s);
4622 }
4623 vim_free(*file);
4624 }
4625 }
4626 if (*e != NUL)
4627 ++e;
4628 }
4629 *file = ga.ga_data;
4630 *num_file = ga.ga_len;
4631
4632 vim_free(buf);
4633 vim_free(pat);
4634 if (mustfree)
4635 vim_free(path);
4636 return OK;
4637 }
4638
4639
4640 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4641 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));
4642
4643 /*
4644 * call "user_expand_func()" to invoke a user defined VimL function and return
4645 * the result (either a string or a List).
4646 */
4647 static void *
4648 call_user_expand_func(user_expand_func, xp, num_file, file)
4649 void *(*user_expand_func) __ARGS((char_u *, int, char_u **, int));
4650 expand_T *xp;
4651 int *num_file;
4652 char_u ***file;
4653 {
4654 char_u keep;
4655 char_u num[50];
4656 char_u *args[3];
4657 int save_current_SID = current_SID;
4658 void *ret;
4659 struct cmdline_info save_ccline;
4660
4661 if (xp->xp_arg == NULL || xp->xp_arg[0] == '\0')
4662 return NULL;
4663 *num_file = 0;
4664 *file = NULL;
4665
4666 keep = ccline.cmdbuff[ccline.cmdlen];
4667 ccline.cmdbuff[ccline.cmdlen] = 0;
4668 sprintf((char *)num, "%d", ccline.cmdpos);
4669 args[0] = xp->xp_pattern;
4670 args[1] = ccline.cmdbuff;
4671 args[2] = num;
4672
4673 /* Save the cmdline, we don't know what the function may do. */
4674 save_ccline = ccline;
4675 ccline.cmdbuff = NULL;
4676 ccline.cmdprompt = NULL;
4677 current_SID = xp->xp_scriptID;
4678
4679 ret = user_expand_func(xp->xp_arg, 3, args, FALSE);
4680
4681 ccline = save_ccline;
4682 current_SID = save_current_SID;
4683
4684 ccline.cmdbuff[ccline.cmdlen] = keep;
4685
4686 return ret;
4687 }
4688
4689 /*
4690 * Expand names with a function defined by the user.
4691 */
4692 static int
4693 ExpandUserDefined(xp, regmatch, num_file, file)
4694 expand_T *xp;
4695 regmatch_T *regmatch;
4696 int *num_file;
4697 char_u ***file;
4698 {
4699 char_u *retstr;
4700 char_u *s;
4701 char_u *e;
4702 char_u keep;
4703 garray_T ga;
4704
4705 retstr = call_user_expand_func(call_func_retstr, xp, num_file, file);
4706 if (retstr == NULL)
4707 return FAIL;
4708
4709 ga_init2(&ga, (int)sizeof(char *), 3);
4710 for (s = retstr; *s != NUL; s = e)
4711 {
4712 e = vim_strchr(s, '\n');
4713 if (e == NULL)
4714 e = s + STRLEN(s);
4715 keep = *e;
4716 *e = 0;
4717
4718 if (xp->xp_pattern[0] && vim_regexec(regmatch, s, (colnr_T)0) == 0)
4719 {
4720 *e = keep;
4721 if (*e != NUL)
4722 ++e;
4723 continue;
4724 }
4725
4726 if (ga_grow(&ga, 1) == FAIL)
4727 break;
4728
4729 ((char_u **)ga.ga_data)[ga.ga_len] = vim_strnsave(s, (int)(e - s));
4730 ++ga.ga_len;
4731
4732 *e = keep;
4733 if (*e != NUL)
4734 ++e;
4735 }
4736 vim_free(retstr);
4737 *file = ga.ga_data;
4738 *num_file = ga.ga_len;
4739 return OK;
4740 }
4741
4742 /*
4743 * Expand names with a list returned by a function defined by the user.
4744 */
4745 static int
4746 ExpandUserList(xp, num_file, file)
4747 expand_T *xp;
4748 int *num_file;
4749 char_u ***file;
4750 {
4751 list_T *retlist;
4752 listitem_T *li;
4753 garray_T ga;
4754
4755 retlist = call_user_expand_func(call_func_retlist, xp, num_file, file);
4756 if (retlist == NULL)
4757 return FAIL;
4758
4759 ga_init2(&ga, (int)sizeof(char *), 3);
4760 /* Loop over the items in the list. */
4761 for (li = retlist->lv_first; li != NULL; li = li->li_next)
4762 {
4763 if (li->li_tv.v_type != VAR_STRING)
4764 continue; /* Skip non-string items */
4765
4766 if (ga_grow(&ga, 1) == FAIL)
4767 break;
4768
4769 ((char_u **)ga.ga_data)[ga.ga_len] =
4770 vim_strsave(li->li_tv.vval.v_string);
4771 ++ga.ga_len;
4772 }
4773 list_unref(retlist);
4774
4775 *file = ga.ga_data;
4776 *num_file = ga.ga_len;
4777 return OK;
4778 }
4779 #endif
4780
4781 /*
4782 * Expand color scheme names: 'runtimepath'/colors/{pat}.vim
4783 * or compiler names.
4784 */
4785 static int
4786 ExpandRTDir(pat, num_file, file, dirname)
4787 char_u *pat;
4788 int *num_file;
4789 char_u ***file;
4790 char *dirname; /* "colors" or "compiler" */
4791 {
4792 char_u *all;
4793 char_u *s;
4794 char_u *e;
4795 garray_T ga;
4796
4797 *num_file = 0;
4798 *file = NULL;
4799 s = alloc((unsigned)(STRLEN(pat) + STRLEN(dirname) + 7));
4800 if (s == NULL)
4801 return FAIL;
4802 sprintf((char *)s, "%s/%s*.vim", dirname, pat);
4803 all = globpath(p_rtp, s);
4804 vim_free(s);
4805 if (all == NULL)
4806 return FAIL;
4807
4808 ga_init2(&ga, (int)sizeof(char *), 3);
4809 for (s = all; *s != NUL; s = e)
4810 {
4811 e = vim_strchr(s, '\n');
4812 if (e == NULL)
4813 e = s + STRLEN(s);
4814 if (ga_grow(&ga, 1) == FAIL)
4815 break;
4816 if (e - 4 > s && STRNICMP(e - 4, ".vim", 4) == 0)
4817 {
4818 for (s = e - 4; s > all; mb_ptr_back(all, s))
4819 if (*s == '\n' || vim_ispathsep(*s))
4820 break;
4821 ++s;
4822 ((char_u **)ga.ga_data)[ga.ga_len] =
4823 vim_strnsave(s, (int)(e - s - 4));
4824 ++ga.ga_len;
4825 }
4826 if (*e != NUL)
4827 ++e;
4828 }
4829 vim_free(all);
4830 *file = ga.ga_data;
4831 *num_file = ga.ga_len;
4832 return OK;
4833 }
4834
4835 #endif
4836
4837 #if defined(FEAT_CMDL_COMPL) || defined(FEAT_EVAL) || defined(PROTO)
4838 /*
4839 * Expand "file" for all comma-separated directories in "path".
4840 * Returns an allocated string with all matches concatenated, separated by
4841 * newlines. Returns NULL for an error or no matches.
4842 */
4843 char_u *
4844 globpath(path, file)
4845 char_u *path;
4846 char_u *file;
4847 {
4848 expand_T xpc;
4849 char_u *buf;
4850 garray_T ga;
4851 int i;
4852 int len;
4853 int num_p;
4854 char_u **p;
4855 char_u *cur = NULL;
4856
4857 buf = alloc(MAXPATHL);
4858 if (buf == NULL)
4859 return NULL;
4860
4861 ExpandInit(&xpc);
4862 xpc.xp_context = EXPAND_FILES;
4863
4864 ga_init2(&ga, 1, 100);
4865
4866 /* Loop over all entries in {path}. */
4867 while (*path != NUL)
4868 {
4869 /* Copy one item of the path to buf[] and concatenate the file name. */
4870 copy_option_part(&path, buf, MAXPATHL, ",");
4871 if (STRLEN(buf) + STRLEN(file) + 2 < MAXPATHL)
4872 {
4873 add_pathsep(buf);
4874 STRCAT(buf, file);
4875 if (ExpandFromContext(&xpc, buf, &num_p, &p, WILD_SILENT) != FAIL
4876 && num_p > 0)
4877 {
4878 ExpandEscape(&xpc, buf, num_p, p, WILD_SILENT);
4879 for (len = 0, i = 0; i < num_p; ++i)
4880 len += (int)STRLEN(p[i]) + 1;
4881
4882 /* Concatenate new results to previous ones. */
4883 if (ga_grow(&ga, len) == OK)
4884 {
4885 cur = (char_u *)ga.ga_data + ga.ga_len;
4886 for (i = 0; i < num_p; ++i)
4887 {
4888 STRCPY(cur, p[i]);
4889 cur += STRLEN(p[i]);
4890 *cur++ = '\n';
4891 }
4892 ga.ga_len += len;
4893 }
4894 FreeWild(num_p, p);
4895 }
4896 }
4897 }
4898 if (cur != NULL)
4899 *--cur = 0; /* Replace trailing newline with NUL */
4900
4901 vim_free(buf);
4902 return (char_u *)ga.ga_data;
4903 }
4904
4905 #endif
4906
4907 #if defined(FEAT_CMDHIST) || defined(PROTO)
4908
4909 /*********************************
4910 * Command line history stuff *
4911 *********************************/
4912
4913 /*
4914 * Translate a history character to the associated type number.
4915 */
4916 static int
4917 hist_char2type(c)
4918 int c;
4919 {
4920 if (c == ':')
4921 return HIST_CMD;
4922 if (c == '=')
4923 return HIST_EXPR;
4924 if (c == '@')
4925 return HIST_INPUT;
4926 if (c == '>')
4927 return HIST_DEBUG;
4928 return HIST_SEARCH; /* must be '?' or '/' */
4929 }
4930
4931 /*
4932 * Table of history names.
4933 * These names are used in :history and various hist...() functions.
4934 * It is sufficient to give the significant prefix of a history name.
4935 */
4936
4937 static char *(history_names[]) =
4938 {
4939 "cmd",
4940 "search",
4941 "expr",
4942 "input",
4943 "debug",
4944 NULL
4945 };
4946
4947 /*
4948 * init_history() - Initialize the command line history.
4949 * Also used to re-allocate the history when the size changes.
4950 */
4951 void
4952 init_history()
4953 {
4954 int newlen; /* new length of history table */
4955 histentry_T *temp;
4956 int i;
4957 int j;
4958 int type;
4959
4960 /*
4961 * If size of history table changed, reallocate it
4962 */
4963 newlen = (int)p_hi;
4964 if (newlen != hislen) /* history length changed */
4965 {
4966 for (type = 0; type < HIST_COUNT; ++type) /* adjust the tables */
4967 {
4968 if (newlen)
4969 {
4970 temp = (histentry_T *)lalloc(
4971 (long_u)(newlen * sizeof(histentry_T)), TRUE);
4972 if (temp == NULL) /* out of memory! */
4973 {
4974 if (type == 0) /* first one: just keep the old length */
4975 {
4976 newlen = hislen;
4977 break;
4978 }
4979 /* Already changed one table, now we can only have zero
4980 * length for all tables. */
4981 newlen = 0;
4982 type = -1;
4983 continue;
4984 }
4985 }
4986 else
4987 temp = NULL;
4988 if (newlen == 0 || temp != NULL)
4989 {
4990 if (hisidx[type] < 0) /* there are no entries yet */
4991 {
4992 for (i = 0; i < newlen; ++i)
4993 {
4994 temp[i].hisnum = 0;
4995 temp[i].hisstr = NULL;
4996 }
4997 }
4998 else if (newlen > hislen) /* array becomes bigger */
4999 {
5000 for (i = 0; i <= hisidx[type]; ++i)
5001 temp[i] = history[type][i];
5002 j = i;
5003 for ( ; i <= newlen - (hislen - hisidx[type]); ++i)
5004 {
5005 temp[i].hisnum = 0;
5006 temp[i].hisstr = NULL;
5007 }
5008 for ( ; j < hislen; ++i, ++j)
5009 temp[i] = history[type][j];
5010 }
5011 else /* array becomes smaller or 0 */
5012 {
5013 j = hisidx[type];
5014 for (i = newlen - 1; ; --i)
5015 {
5016 if (i >= 0) /* copy newest entries */
5017 temp[i] = history[type][j];
5018 else /* remove older entries */
5019 vim_free(history[type][j].hisstr);
5020 if (--j < 0)
5021 j = hislen - 1;
5022 if (j == hisidx[type])
5023 break;
5024 }
5025 hisidx[type] = newlen - 1;
5026 }
5027 vim_free(history[type]);
5028 history[type] = temp;
5029 }
5030 }
5031 hislen = newlen;
5032 }
5033 }
5034
5035 /*
5036 * Check if command line 'str' is already in history.
5037 * If 'move_to_front' is TRUE, matching entry is moved to end of history.
5038 */
5039 static int
5040 in_history(type, str, move_to_front)
5041 int type;
5042 char_u *str;
5043 int move_to_front; /* Move the entry to the front if it exists */
5044 {
5045 int i;
5046 int last_i = -1;
5047
5048 if (hisidx[type] < 0)
5049 return FALSE;
5050 i = hisidx[type];
5051 do
5052 {
5053 if (history[type][i].hisstr == NULL)
5054 return FALSE;
5055 if (STRCMP(str, history[type][i].hisstr) == 0)
5056 {
5057 if (!move_to_front)
5058 return TRUE;
5059 last_i = i;
5060 break;
5061 }
5062 if (--i < 0)
5063 i = hislen - 1;
5064 } while (i != hisidx[type]);
5065
5066 if (last_i >= 0)
5067 {
5068 str = history[type][i].hisstr;
5069 while (i != hisidx[type])
5070 {
5071 if (++i >= hislen)
5072 i = 0;
5073 history[type][last_i] = history[type][i];
5074 last_i = i;
5075 }
5076 history[type][i].hisstr = str;
5077 history[type][i].hisnum = ++hisnum[type];
5078 return TRUE;
5079 }
5080 return FALSE;
5081 }
5082
5083 /*
5084 * Convert history name (from table above) to its HIST_ equivalent.
5085 * When "name" is empty, return "cmd" history.
5086 * Returns -1 for unknown history name.
5087 */
5088 int
5089 get_histtype(name)
5090 char_u *name;
5091 {
5092 int i;
5093 int len = (int)STRLEN(name);
5094
5095 /* No argument: use current history. */
5096 if (len == 0)
5097 return hist_char2type(ccline.cmdfirstc);
5098
5099 for (i = 0; history_names[i] != NULL; ++i)
5100 if (STRNICMP(name, history_names[i], len) == 0)
5101 return i;
5102
5103 if (vim_strchr((char_u *)":=@>?/", name[0]) != NULL && name[1] == NUL)
5104 return hist_char2type(name[0]);
5105
5106 return -1;
5107 }
5108
5109 static int last_maptick = -1; /* last seen maptick */
5110
5111 /*
5112 * Add the given string to the given history. If the string is already in the
5113 * history then it is moved to the front. "histype" may be one of he HIST_
5114 * values.
5115 */
5116 void
5117 add_to_history(histype, new_entry, in_map, sep)
5118 int histype;
5119 char_u *new_entry;
5120 int in_map; /* consider maptick when inside a mapping */
5121 int sep; /* separator character used (search hist) */
5122 {
5123 histentry_T *hisptr;
5124 int len;
5125
5126 if (hislen == 0) /* no history */
5127 return;
5128
5129 /*
5130 * Searches inside the same mapping overwrite each other, so that only
5131 * the last line is kept. Be careful not to remove a line that was moved
5132 * down, only lines that were added.
5133 */
5134 if (histype == HIST_SEARCH && in_map)
5135 {
5136 if (maptick == last_maptick)
5137 {
5138 /* Current line is from the same mapping, remove it */
5139 hisptr = &history[HIST_SEARCH][hisidx[HIST_SEARCH]];
5140 vim_free(hisptr->hisstr);
5141 hisptr->hisstr = NULL;
5142 hisptr->hisnum = 0;
5143 --hisnum[histype];
5144 if (--hisidx[HIST_SEARCH] < 0)
5145 hisidx[HIST_SEARCH] = hislen - 1;
5146 }
5147 last_maptick = -1;
5148 }
5149 if (!in_history(histype, new_entry, TRUE))
5150 {
5151 if (++hisidx[histype] == hislen)
5152 hisidx[histype] = 0;
5153 hisptr = &history[histype][hisidx[histype]];
5154 vim_free(hisptr->hisstr);
5155
5156 /* Store the separator after the NUL of the string. */
5157 len = (int)STRLEN(new_entry);
5158 hisptr->hisstr = vim_strnsave(new_entry, len + 2);
5159 if (hisptr->hisstr != NULL)
5160 hisptr->hisstr[len + 1] = sep;
5161
5162 hisptr->hisnum = ++hisnum[histype];
5163 if (histype == HIST_SEARCH && in_map)
5164 last_maptick = maptick;
5165 }
5166 }
5167
5168 #if defined(FEAT_EVAL) || defined(PROTO)
5169
5170 /*
5171 * Get identifier of newest history entry.
5172 * "histype" may be one of the HIST_ values.
5173 */
5174 int
5175 get_history_idx(histype)
5176 int histype;
5177 {
5178 if (hislen == 0 || histype < 0 || histype >= HIST_COUNT
5179 || hisidx[histype] < 0)
5180 return -1;
5181
5182 return history[histype][hisidx[histype]].hisnum;
5183 }
5184
5185 static struct cmdline_info *get_ccline_ptr __ARGS((void));
5186
5187 /*
5188 * Get pointer to the command line info to use. cmdline_paste() may clear
5189 * ccline and put the previous value in prev_ccline.
5190 */
5191 static struct cmdline_info *
5192 get_ccline_ptr()
5193 {
5194 if ((State & CMDLINE) == 0)
5195 return NULL;
5196 if (ccline.cmdbuff != NULL)
5197 return &ccline;
5198 if (prev_ccline_used && prev_ccline.cmdbuff != NULL)
5199 return &prev_ccline;
5200 return NULL;
5201 }
5202
5203 /*
5204 * Get the current command line in allocated memory.
5205 * Only works when the command line is being edited.
5206 * Returns NULL when something is wrong.
5207 */
5208 char_u *
5209 get_cmdline_str()
5210 {
5211 struct cmdline_info *p = get_ccline_ptr();
5212
5213 if (p == NULL)
5214 return NULL;
5215 return vim_strnsave(p->cmdbuff, p->cmdlen);
5216 }
5217
5218 /*
5219 * Get the current command line position, counted in bytes.
5220 * Zero is the first position.
5221 * Only works when the command line is being edited.
5222 * Returns -1 when something is wrong.
5223 */
5224 int
5225 get_cmdline_pos()
5226 {
5227 struct cmdline_info *p = get_ccline_ptr();
5228
5229 if (p == NULL)
5230 return -1;
5231 return p->cmdpos;
5232 }
5233
5234 /*
5235 * Set the command line byte position to "pos". Zero is the first position.
5236 * Only works when the command line is being edited.
5237 * Returns 1 when failed, 0 when OK.
5238 */
5239 int
5240 set_cmdline_pos(pos)
5241 int pos;
5242 {
5243 struct cmdline_info *p = get_ccline_ptr();
5244
5245 if (p == NULL)
5246 return 1;
5247
5248 /* The position is not set directly but after CTRL-\ e or CTRL-R = has
5249 * changed the command line. */
5250 if (pos < 0)
5251 new_cmdpos = 0;
5252 else
5253 new_cmdpos = pos;
5254 return 0;
5255 }
5256
5257 /*
5258 * Get the current command-line type.
5259 * Returns ':' or '/' or '?' or '@' or '>' or '-'
5260 * Only works when the command line is being edited.
5261 * Returns NUL when something is wrong.
5262 */
5263 int
5264 get_cmdline_type()
5265 {
5266 struct cmdline_info *p = get_ccline_ptr();
5267
5268 if (p == NULL)
5269 return NUL;
5270 if (p->cmdfirstc == NUL)
5271 return (p->input_fn) ? '@' : '-';
5272 return p->cmdfirstc;
5273 }
5274
5275 /*
5276 * Calculate history index from a number:
5277 * num > 0: seen as identifying number of a history entry
5278 * num < 0: relative position in history wrt newest entry
5279 * "histype" may be one of the HIST_ values.
5280 */
5281 static int
5282 calc_hist_idx(histype, num)
5283 int histype;
5284 int num;
5285 {
5286 int i;
5287 histentry_T *hist;
5288 int wrapped = FALSE;
5289
5290 if (hislen == 0 || histype < 0 || histype >= HIST_COUNT
5291 || (i = hisidx[histype]) < 0 || num == 0)
5292 return -1;
5293
5294 hist = history[histype];
5295 if (num > 0)
5296 {
5297 while (hist[i].hisnum > num)
5298 if (--i < 0)
5299 {
5300 if (wrapped)
5301 break;
5302 i += hislen;
5303 wrapped = TRUE;
5304 }
5305 if (hist[i].hisnum == num && hist[i].hisstr != NULL)
5306 return i;
5307 }
5308 else if (-num <= hislen)
5309 {
5310 i += num + 1;
5311 if (i < 0)
5312 i += hislen;
5313 if (hist[i].hisstr != NULL)
5314 return i;
5315 }
5316 return -1;
5317 }
5318
5319 /*
5320 * Get a history entry by its index.
5321 * "histype" may be one of the HIST_ values.
5322 */
5323 char_u *
5324 get_history_entry(histype, idx)
5325 int histype;
5326 int idx;
5327 {
5328 idx = calc_hist_idx(histype, idx);
5329 if (idx >= 0)
5330 return history[histype][idx].hisstr;
5331 else
5332 return (char_u *)"";
5333 }
5334
5335 /*
5336 * Clear all entries of a history.
5337 * "histype" may be one of the HIST_ values.
5338 */
5339 int
5340 clr_history(histype)
5341 int histype;
5342 {
5343 int i;
5344 histentry_T *hisptr;
5345
5346 if (hislen != 0 && histype >= 0 && histype < HIST_COUNT)
5347 {
5348 hisptr = history[histype];
5349 for (i = hislen; i--;)
5350 {
5351 vim_free(hisptr->hisstr);
5352 hisptr->hisnum = 0;
5353 hisptr++->hisstr = NULL;
5354 }
5355 hisidx[histype] = -1; /* mark history as cleared */
5356 hisnum[histype] = 0; /* reset identifier counter */
5357 return OK;
5358 }
5359 return FAIL;
5360 }
5361
5362 /*
5363 * Remove all entries matching {str} from a history.
5364 * "histype" may be one of the HIST_ values.
5365 */
5366 int
5367 del_history_entry(histype, str)
5368 int histype;
5369 char_u *str;
5370 {
5371 regmatch_T regmatch;
5372 histentry_T *hisptr;
5373 int idx;
5374 int i;
5375 int last;
5376 int found = FALSE;
5377
5378 regmatch.regprog = NULL;
5379 regmatch.rm_ic = FALSE; /* always match case */
5380 if (hislen != 0
5381 && histype >= 0
5382 && histype < HIST_COUNT
5383 && *str != NUL
5384 && (idx = hisidx[histype]) >= 0
5385 && (regmatch.regprog = vim_regcomp(str, RE_MAGIC + RE_STRING))
5386 != NULL)
5387 {
5388 i = last = idx;
5389 do
5390 {
5391 hisptr = &history[histype][i];
5392 if (hisptr->hisstr == NULL)
5393 break;
5394 if (vim_regexec(&regmatch, hisptr->hisstr, (colnr_T)0))
5395 {
5396 found = TRUE;
5397 vim_free(hisptr->hisstr);
5398 hisptr->hisstr = NULL;
5399 hisptr->hisnum = 0;
5400 }
5401 else
5402 {
5403 if (i != last)
5404 {
5405 history[histype][last] = *hisptr;
5406 hisptr->hisstr = NULL;
5407 hisptr->hisnum = 0;
5408 }
5409 if (--last < 0)
5410 last += hislen;
5411 }
5412 if (--i < 0)
5413 i += hislen;
5414 } while (i != idx);
5415 if (history[histype][idx].hisstr == NULL)
5416 hisidx[histype] = -1;
5417 }
5418 vim_free(regmatch.regprog);
5419 return found;
5420 }
5421
5422 /*
5423 * Remove an indexed entry from a history.
5424 * "histype" may be one of the HIST_ values.
5425 */
5426 int
5427 del_history_idx(histype, idx)
5428 int histype;
5429 int idx;
5430 {
5431 int i, j;
5432
5433 i = calc_hist_idx(histype, idx);
5434 if (i < 0)
5435 return FALSE;
5436 idx = hisidx[histype];
5437 vim_free(history[histype][i].hisstr);
5438
5439 /* When deleting the last added search string in a mapping, reset
5440 * last_maptick, so that the last added search string isn't deleted again.
5441 */
5442 if (histype == HIST_SEARCH && maptick == last_maptick && i == idx)
5443 last_maptick = -1;
5444
5445 while (i != idx)
5446 {
5447 j = (i + 1) % hislen;
5448 history[histype][i] = history[histype][j];
5449 i = j;
5450 }
5451 history[histype][i].hisstr = NULL;
5452 history[histype][i].hisnum = 0;
5453 if (--i < 0)
5454 i += hislen;
5455 hisidx[histype] = i;
5456 return TRUE;
5457 }
5458
5459 #endif /* FEAT_EVAL */
5460
5461 #if defined(FEAT_CRYPT) || defined(PROTO)
5462 /*
5463 * Very specific function to remove the value in ":set key=val" from the
5464 * history.
5465 */
5466 void
5467 remove_key_from_history()
5468 {
5469 char_u *p;
5470 int i;
5471
5472 i = hisidx[HIST_CMD];
5473 if (i < 0)
5474 return;
5475 p = history[HIST_CMD][i].hisstr;
5476 if (p != NULL)
5477 for ( ; *p; ++p)
5478 if (STRNCMP(p, "key", 3) == 0 && !isalpha(p[3]))
5479 {
5480 p = vim_strchr(p + 3, '=');
5481 if (p == NULL)
5482 break;
5483 ++p;
5484 for (i = 0; p[i] && !vim_iswhite(p[i]); ++i)
5485 if (p[i] == '\\' && p[i + 1])
5486 ++i;
5487 mch_memmove(p, p + i, STRLEN(p + i) + 1);
5488 --p;
5489 }
5490 }
5491 #endif
5492
5493 #endif /* FEAT_CMDHIST */
5494
5495 #if defined(FEAT_QUICKFIX) || defined(FEAT_CMDHIST) || defined(PROTO)
5496 /*
5497 * Get indices "num1,num2" that specify a range within a list (not a range of
5498 * text lines in a buffer!) from a string. Used for ":history" and ":clist".
5499 * Returns OK if parsed successfully, otherwise FAIL.
5500 */
5501 int
5502 get_list_range(str, num1, num2)
5503 char_u **str;
5504 int *num1;
5505 int *num2;
5506 {
5507 int len;
5508 int first = FALSE;
5509 long num;
5510
5511 *str = skipwhite(*str);
5512 if (**str == '-' || vim_isdigit(**str)) /* parse "from" part of range */
5513 {
5514 vim_str2nr(*str, NULL, &len, FALSE, FALSE, &num, NULL);
5515 *str += len;
5516 *num1 = (int)num;
5517 first = TRUE;
5518 }
5519 *str = skipwhite(*str);
5520 if (**str == ',') /* parse "to" part of range */
5521 {
5522 *str = skipwhite(*str + 1);
5523 vim_str2nr(*str, NULL, &len, FALSE, FALSE, &num, NULL);
5524 if (len > 0)
5525 {
5526 *num2 = (int)num;
5527 *str = skipwhite(*str + len);
5528 }
5529 else if (!first) /* no number given at all */
5530 return FAIL;
5531 }
5532 else if (first) /* only one number given */
5533 *num2 = *num1;
5534 return OK;
5535 }
5536 #endif
5537
5538 #if defined(FEAT_CMDHIST) || defined(PROTO)
5539 /*
5540 * :history command - print a history
5541 */
5542 void
5543 ex_history(eap)
5544 exarg_T *eap;
5545 {
5546 histentry_T *hist;
5547 int histype1 = HIST_CMD;
5548 int histype2 = HIST_CMD;
5549 int hisidx1 = 1;
5550 int hisidx2 = -1;
5551 int idx;
5552 int i, j, k;
5553 char_u *end;
5554 char_u *arg = eap->arg;
5555
5556 if (hislen == 0)
5557 {
5558 MSG(_("'history' option is zero"));
5559 return;
5560 }
5561
5562 if (!(VIM_ISDIGIT(*arg) || *arg == '-' || *arg == ','))
5563 {
5564 end = arg;
5565 while (ASCII_ISALPHA(*end)
5566 || vim_strchr((char_u *)":=@>/?", *end) != NULL)
5567 end++;
5568 i = *end;
5569 *end = NUL;
5570 histype1 = get_histtype(arg);
5571 if (histype1 == -1)
5572 {
5573 if (STRICMP(arg, "all") == 0)
5574 {
5575 histype1 = 0;
5576 histype2 = HIST_COUNT-1;
5577 }
5578 else
5579 {
5580 *end = i;
5581 EMSG(_(e_trailing));
5582 return;
5583 }
5584 }
5585 else
5586 histype2 = histype1;
5587 *end = i;
5588 }
5589 else
5590 end = arg;
5591 if (!get_list_range(&end, &hisidx1, &hisidx2) || *end != NUL)
5592 {
5593 EMSG(_(e_trailing));
5594 return;
5595 }
5596
5597 for (; !got_int && histype1 <= histype2; ++histype1)
5598 {
5599 STRCPY(IObuff, "\n # ");
5600 STRCAT(STRCAT(IObuff, history_names[histype1]), " history");
5601 MSG_PUTS_TITLE(IObuff);
5602 idx = hisidx[histype1];
5603 hist = history[histype1];
5604 j = hisidx1;
5605 k = hisidx2;
5606 if (j < 0)
5607 j = (-j > hislen) ? 0 : hist[(hislen+j+idx+1) % hislen].hisnum;
5608 if (k < 0)
5609 k = (-k > hislen) ? 0 : hist[(hislen+k+idx+1) % hislen].hisnum;
5610 if (idx >= 0 && j <= k)
5611 for (i = idx + 1; !got_int; ++i)
5612 {
5613 if (i == hislen)
5614 i = 0;
5615 if (hist[i].hisstr != NULL
5616 && hist[i].hisnum >= j && hist[i].hisnum <= k)
5617 {
5618 msg_putchar('\n');
5619 sprintf((char *)IObuff, "%c%6d ", i == idx ? '>' : ' ',
5620 hist[i].hisnum);
5621 if (vim_strsize(hist[i].hisstr) > (int)Columns - 10)
5622 trunc_string(hist[i].hisstr, IObuff + STRLEN(IObuff),
5623 (int)Columns - 10);
5624 else
5625 STRCAT(IObuff, hist[i].hisstr);
5626 msg_outtrans(IObuff);
5627 out_flush();
5628 }
5629 if (i == idx)
5630 break;
5631 }
5632 }
5633 }
5634 #endif
5635
5636 #if (defined(FEAT_VIMINFO) && defined(FEAT_CMDHIST)) || defined(PROTO)
5637 static char_u **viminfo_history[HIST_COUNT] = {NULL, NULL, NULL, NULL};
5638 static int viminfo_hisidx[HIST_COUNT] = {0, 0, 0, 0};
5639 static int viminfo_hislen[HIST_COUNT] = {0, 0, 0, 0};
5640 static int viminfo_add_at_front = FALSE;
5641
5642 static int hist_type2char __ARGS((int type, int use_question));
5643
5644 /*
5645 * Translate a history type number to the associated character.
5646 */
5647 static int
5648 hist_type2char(type, use_question)
5649 int type;
5650 int use_question; /* use '?' instead of '/' */
5651 {
5652 if (type == HIST_CMD)
5653 return ':';
5654 if (type == HIST_SEARCH)
5655 {
5656 if (use_question)
5657 return '?';
5658 else
5659 return '/';
5660 }
5661 if (type == HIST_EXPR)
5662 return '=';
5663 return '@';
5664 }
5665
5666 /*
5667 * Prepare for reading the history from the viminfo file.
5668 * This allocates history arrays to store the read history lines.
5669 */
5670 void
5671 prepare_viminfo_history(asklen)
5672 int asklen;
5673 {
5674 int i;
5675 int num;
5676 int type;
5677 int len;
5678
5679 init_history();
5680 viminfo_add_at_front = (asklen != 0);
5681 if (asklen > hislen)
5682 asklen = hislen;
5683
5684 for (type = 0; type < HIST_COUNT; ++type)
5685 {
5686 /*
5687 * Count the number of empty spaces in the history list. If there are
5688 * more spaces available than we request, then fill them up.
5689 */
5690 for (i = 0, num = 0; i < hislen; i++)
5691 if (history[type][i].hisstr == NULL)
5692 num++;
5693 len = asklen;
5694 if (num > len)
5695 len = num;
5696 if (len <= 0)
5697 viminfo_history[type] = NULL;
5698 else
5699 viminfo_history[type] =
5700 (char_u **)lalloc((long_u)(len * sizeof(char_u *)), FALSE);
5701 if (viminfo_history[type] == NULL)
5702 len = 0;
5703 viminfo_hislen[type] = len;
5704 viminfo_hisidx[type] = 0;
5705 }
5706 }
5707
5708 /*
5709 * Accept a line from the viminfo, store it in the history array when it's
5710 * new.
5711 */
5712 int
5713 read_viminfo_history(virp)
5714 vir_T *virp;
5715 {
5716 int type;
5717 long_u len;
5718 char_u *val;
5719 char_u *p;
5720
5721 type = hist_char2type(virp->vir_line[0]);
5722 if (viminfo_hisidx[type] < viminfo_hislen[type])
5723 {
5724 val = viminfo_readstring(virp, 1, TRUE);
5725 if (val != NULL && *val != NUL)
5726 {
5727 if (!in_history(type, val + (type == HIST_SEARCH),
5728 viminfo_add_at_front))
5729 {
5730 /* Need to re-allocate to append the separator byte. */
5731 len = STRLEN(val);
5732 p = lalloc(len + 2, TRUE);
5733 if (p != NULL)
5734 {
5735 if (type == HIST_SEARCH)
5736 {
5737 /* Search entry: Move the separator from the first
5738 * column to after the NUL. */
5739 mch_memmove(p, val + 1, (size_t)len);
5740 p[len] = (*val == ' ' ? NUL : *val);
5741 }
5742 else
5743 {
5744 /* Not a search entry: No separator in the viminfo
5745 * file, add a NUL separator. */
5746 mch_memmove(p, val, (size_t)len + 1);
5747 p[len + 1] = NUL;
5748 }
5749 viminfo_history[type][viminfo_hisidx[type]++] = p;
5750 }
5751 }
5752 }
5753 vim_free(val);
5754 }
5755 return viminfo_readline(virp);
5756 }
5757
5758 void
5759 finish_viminfo_history()
5760 {
5761 int idx;
5762 int i;
5763 int type;
5764
5765 for (type = 0; type < HIST_COUNT; ++type)
5766 {
5767 if (history[type] == NULL)
5768 return;
5769 idx = hisidx[type] + viminfo_hisidx[type];
5770 if (idx >= hislen)
5771 idx -= hislen;
5772 else if (idx < 0)
5773 idx = hislen - 1;
5774 if (viminfo_add_at_front)
5775 hisidx[type] = idx;
5776 else
5777 {
5778 if (hisidx[type] == -1)
5779 hisidx[type] = hislen - 1;
5780 do
5781 {
5782 if (history[type][idx].hisstr != NULL)
5783 break;
5784 if (++idx == hislen)
5785 idx = 0;
5786 } while (idx != hisidx[type]);
5787 if (idx != hisidx[type] && --idx < 0)
5788 idx = hislen - 1;
5789 }
5790 for (i = 0; i < viminfo_hisidx[type]; i++)
5791 {
5792 vim_free(history[type][idx].hisstr);
5793 history[type][idx].hisstr = viminfo_history[type][i];
5794 if (--idx < 0)
5795 idx = hislen - 1;
5796 }
5797 idx += 1;
5798 idx %= hislen;
5799 for (i = 0; i < viminfo_hisidx[type]; i++)
5800 {
5801 history[type][idx++].hisnum = ++hisnum[type];
5802 idx %= hislen;
5803 }
5804 vim_free(viminfo_history[type]);
5805 viminfo_history[type] = NULL;
5806 }
5807 }
5808
5809 void
5810 write_viminfo_history(fp)
5811 FILE *fp;
5812 {
5813 int i;
5814 int type;
5815 int num_saved;
5816 char_u *p;
5817 int c;
5818
5819 init_history();
5820 if (hislen == 0)
5821 return;
5822 for (type = 0; type < HIST_COUNT; ++type)
5823 {
5824 num_saved = get_viminfo_parameter(hist_type2char(type, FALSE));
5825 if (num_saved == 0)
5826 continue;
5827 if (num_saved < 0) /* Use default */
5828 num_saved = hislen;
5829 fprintf(fp, _("\n# %s History (newest to oldest):\n"),
5830 type == HIST_CMD ? _("Command Line") :
5831 type == HIST_SEARCH ? _("Search String") :
5832 type == HIST_EXPR ? _("Expression") :
5833 _("Input Line"));
5834 if (num_saved > hislen)
5835 num_saved = hislen;
5836 i = hisidx[type];
5837 if (i >= 0)
5838 while (num_saved--)
5839 {
5840 p = history[type][i].hisstr;
5841 if (p != NULL)
5842 {
5843 fputc(hist_type2char(type, TRUE), fp);
5844 /* For the search history: put the separator in the second
5845 * column; use a space if there isn't one. */
5846 if (type == HIST_SEARCH)
5847 {
5848 c = p[STRLEN(p) + 1];
5849 putc(c == NUL ? ' ' : c, fp);
5850 }
5851 viminfo_writestring(fp, p);
5852 }
5853 if (--i < 0)
5854 i = hislen - 1;
5855 }
5856 }
5857 }
5858 #endif /* FEAT_VIMINFO */
5859
5860 #if defined(FEAT_FKMAP) || defined(PROTO)
5861 /*
5862 * Write a character at the current cursor+offset position.
5863 * It is directly written into the command buffer block.
5864 */
5865 void
5866 cmd_pchar(c, offset)
5867 int c, offset;
5868 {
5869 if (ccline.cmdpos + offset >= ccline.cmdlen || ccline.cmdpos + offset < 0)
5870 {
5871 EMSG(_("E198: cmd_pchar beyond the command length"));
5872 return;
5873 }
5874 ccline.cmdbuff[ccline.cmdpos + offset] = (char_u)c;
5875 ccline.cmdbuff[ccline.cmdlen] = NUL;
5876 }
5877
5878 int
5879 cmd_gchar(offset)
5880 int offset;
5881 {
5882 if (ccline.cmdpos + offset >= ccline.cmdlen || ccline.cmdpos + offset < 0)
5883 {
5884 /* EMSG(_("cmd_gchar beyond the command length")); */
5885 return NUL;
5886 }
5887 return (int)ccline.cmdbuff[ccline.cmdpos + offset];
5888 }
5889 #endif
5890
5891 #if defined(FEAT_CMDWIN) || defined(PROTO)
5892 /*
5893 * Open a window on the current command line and history. Allow editing in
5894 * the window. Returns when the window is closed.
5895 * Returns:
5896 * CR if the command is to be executed
5897 * Ctrl_C if it is to be abandoned
5898 * K_IGNORE if editing continues
5899 */
5900 static int
5901 ex_window()
5902 {
5903 struct cmdline_info save_ccline;
5904 buf_T *old_curbuf = curbuf;
5905 win_T *old_curwin = curwin;
5906 buf_T *bp;
5907 win_T *wp;
5908 int i;
5909 linenr_T lnum;
5910 int histtype;
5911 garray_T winsizes;
5912 char_u typestr[2];
5913 int save_restart_edit = restart_edit;
5914 int save_State = State;
5915 int save_exmode = exmode_active;
5916 #ifdef FEAT_RIGHTLEFT
5917 int save_cmdmsg_rl = cmdmsg_rl;
5918 #endif
5919
5920 /* Can't do this recursively. Can't do it when typing a password. */
5921 if (cmdwin_type != 0
5922 # if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
5923 || cmdline_star > 0
5924 # endif
5925 )
5926 {
5927 beep_flush();
5928 return K_IGNORE;
5929 }
5930
5931 /* Save current window sizes. */
5932 win_size_save(&winsizes);
5933
5934 # ifdef FEAT_AUTOCMD
5935 /* Don't execute autocommands while creating the window. */
5936 block_autocmds();
5937 # endif
5938 /* don't use a new tab page */
5939 cmdmod.tab = 0;
5940
5941 /* Create a window for the command-line buffer. */
5942 if (win_split((int)p_cwh, WSP_BOT) == FAIL)
5943 {
5944 beep_flush();
5945 # ifdef FEAT_AUTOCMD
5946 unblock_autocmds();
5947 # endif
5948 return K_IGNORE;
5949 }
5950 cmdwin_type = ccline.cmdfirstc;
5951 if (cmdwin_type == NUL)
5952 cmdwin_type = '-';
5953
5954 /* Create the command-line buffer empty. */
5955 (void)do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, ECMD_HIDE);
5956 (void)setfname(curbuf, (char_u *)"command-line", NULL, TRUE);
5957 set_option_value((char_u *)"bt", 0L, (char_u *)"nofile", OPT_LOCAL);
5958 set_option_value((char_u *)"swf", 0L, NULL, OPT_LOCAL);
5959 curbuf->b_p_ma = TRUE;
5960 # ifdef FEAT_RIGHTLEFT
5961 curwin->w_p_rl = cmdmsg_rl;
5962 cmdmsg_rl = FALSE;
5963 # endif
5964 # ifdef FEAT_SCROLLBIND
5965 curwin->w_p_scb = FALSE;
5966 # endif
5967
5968 # ifdef FEAT_AUTOCMD
5969 /* Do execute autocommands for setting the filetype (load syntax). */
5970 unblock_autocmds();
5971 # endif
5972
5973 /* Showing the prompt may have set need_wait_return, reset it. */
5974 need_wait_return = FALSE;
5975
5976 histtype = hist_char2type(ccline.cmdfirstc);
5977 if (histtype == HIST_CMD || histtype == HIST_DEBUG)
5978 {
5979 if (p_wc == TAB)
5980 {
5981 add_map((char_u *)"<buffer> <Tab> <C-X><C-V>", INSERT);
5982 add_map((char_u *)"<buffer> <Tab> a<C-X><C-V>", NORMAL);
5983 }
5984 set_option_value((char_u *)"ft", 0L, (char_u *)"vim", OPT_LOCAL);
5985 }
5986
5987 /* Reset 'textwidth' after setting 'filetype' (the Vim filetype plugin
5988 * sets 'textwidth' to 78). */
5989 curbuf->b_p_tw = 0;
5990
5991 /* Fill the buffer with the history. */
5992 init_history();
5993 if (hislen > 0)
5994 {
5995 i = hisidx[histtype];
5996 if (i >= 0)
5997 {
5998 lnum = 0;
5999 do
6000 {
6001 if (++i == hislen)
6002 i = 0;
6003 if (history[histtype][i].hisstr != NULL)
6004 ml_append(lnum++, history[histtype][i].hisstr,
6005 (colnr_T)0, FALSE);
6006 }
6007 while (i != hisidx[histtype]);
6008 }
6009 }
6010
6011 /* Replace the empty last line with the current command-line and put the
6012 * cursor there. */
6013 ml_replace(curbuf->b_ml.ml_line_count, ccline.cmdbuff, TRUE);
6014 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6015 curwin->w_cursor.col = ccline.cmdpos;
6016 changed_line_abv_curs();
6017 invalidate_botline();
6018 redraw_later(SOME_VALID);
6019
6020 /* Save the command line info, can be used recursively. */
6021 save_ccline = ccline;
6022 ccline.cmdbuff = NULL;
6023 ccline.cmdprompt = NULL;
6024
6025 /* No Ex mode here! */
6026 exmode_active = 0;
6027
6028 State = NORMAL;
6029 # ifdef FEAT_MOUSE
6030 setmouse();
6031 # endif
6032
6033 # ifdef FEAT_AUTOCMD
6034 /* Trigger CmdwinEnter autocommands. */
6035 typestr[0] = cmdwin_type;
6036 typestr[1] = NUL;
6037 apply_autocmds(EVENT_CMDWINENTER, typestr, typestr, FALSE, curbuf);
6038 if (restart_edit != 0) /* autocmd with ":startinsert" */
6039 stuffcharReadbuff(K_NOP);
6040 # endif
6041
6042 i = RedrawingDisabled;
6043 RedrawingDisabled = 0;
6044
6045 /*
6046 * Call the main loop until <CR> or CTRL-C is typed.
6047 */
6048 cmdwin_result = 0;
6049 main_loop(TRUE, FALSE);
6050
6051 RedrawingDisabled = i;
6052
6053 # ifdef FEAT_AUTOCMD
6054 /* Trigger CmdwinLeave autocommands. */
6055 apply_autocmds(EVENT_CMDWINLEAVE, typestr, typestr, FALSE, curbuf);
6056 # endif
6057
6058 /* Restore the command line info. */
6059 ccline = save_ccline;
6060 cmdwin_type = 0;
6061
6062 exmode_active = save_exmode;
6063
6064 /* Safety check: The old window or buffer was deleted: It's a a bug when
6065 * this happens! */
6066 if (!win_valid(old_curwin) || !buf_valid(old_curbuf))
6067 {
6068 cmdwin_result = Ctrl_C;
6069 EMSG(_("E199: Active window or buffer deleted"));
6070 }
6071 else
6072 {
6073 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
6074 /* autocmds may abort script processing */
6075 if (aborting() && cmdwin_result != K_IGNORE)
6076 cmdwin_result = Ctrl_C;
6077 # endif
6078 /* Set the new command line from the cmdline buffer. */
6079 vim_free(ccline.cmdbuff);
6080 if (cmdwin_result == K_XF1 || cmdwin_result == K_XF2) /* :qa[!] typed */
6081 {
6082 char *p = (cmdwin_result == K_XF2) ? "qa" : "qa!";
6083
6084 if (histtype == HIST_CMD)
6085 {
6086 /* Execute the command directly. */
6087 ccline.cmdbuff = vim_strsave((char_u *)p);
6088 cmdwin_result = CAR;
6089 }
6090 else
6091 {
6092 /* First need to cancel what we were doing. */
6093 ccline.cmdbuff = NULL;
6094 stuffcharReadbuff(':');
6095 stuffReadbuff((char_u *)p);
6096 stuffcharReadbuff(CAR);
6097 }
6098 }
6099 else if (cmdwin_result == K_XF2) /* :qa typed */
6100 {
6101 ccline.cmdbuff = vim_strsave((char_u *)"qa");
6102 cmdwin_result = CAR;
6103 }
6104 else
6105 ccline.cmdbuff = vim_strsave(ml_get_curline());
6106 if (ccline.cmdbuff == NULL)
6107 cmdwin_result = Ctrl_C;
6108 else
6109 {
6110 ccline.cmdlen = (int)STRLEN(ccline.cmdbuff);
6111 ccline.cmdbufflen = ccline.cmdlen + 1;
6112 ccline.cmdpos = curwin->w_cursor.col;
6113 if (ccline.cmdpos > ccline.cmdlen)
6114 ccline.cmdpos = ccline.cmdlen;
6115 if (cmdwin_result == K_IGNORE)
6116 {
6117 set_cmdspos_cursor();
6118 redrawcmd();
6119 }
6120 }
6121
6122 # ifdef FEAT_AUTOCMD
6123 /* Don't execute autocommands while deleting the window. */
6124 block_autocmds();
6125 # endif
6126 wp = curwin;
6127 bp = curbuf;
6128 win_goto(old_curwin);
6129 win_close(wp, TRUE);
6130 close_buffer(NULL, bp, DOBUF_WIPE);
6131
6132 /* Restore window sizes. */
6133 win_size_restore(&winsizes);
6134
6135 # ifdef FEAT_AUTOCMD
6136 unblock_autocmds();
6137 # endif
6138 }
6139
6140 ga_clear(&winsizes);
6141 restart_edit = save_restart_edit;
6142 # ifdef FEAT_RIGHTLEFT
6143 cmdmsg_rl = save_cmdmsg_rl;
6144 # endif
6145
6146 State = save_State;
6147 # ifdef FEAT_MOUSE
6148 setmouse();
6149 # endif
6150
6151 return cmdwin_result;
6152 }
6153 #endif /* FEAT_CMDWIN */
6154
6155 /*
6156 * Used for commands that either take a simple command string argument, or:
6157 * cmd << endmarker
6158 * {script}
6159 * endmarker
6160 * Returns a pointer to allocated memory with {script} or NULL.
6161 */
6162 char_u *
6163 script_get(eap, cmd)
6164 exarg_T *eap;
6165 char_u *cmd;
6166 {
6167 char_u *theline;
6168 char *end_pattern = NULL;
6169 char dot[] = ".";
6170 garray_T ga;
6171
6172 if (cmd[0] != '<' || cmd[1] != '<' || eap->getline == NULL)
6173 return NULL;
6174
6175 ga_init2(&ga, 1, 0x400);
6176
6177 if (cmd[2] != NUL)
6178 end_pattern = (char *)skipwhite(cmd + 2);
6179 else
6180 end_pattern = dot;
6181
6182 for (;;)
6183 {
6184 theline = eap->getline(
6185 #ifdef FEAT_EVAL
6186 eap->cstack->cs_looplevel > 0 ? -1 :
6187 #endif
6188 NUL, eap->cookie, 0);
6189
6190 if (theline == NULL || STRCMP(end_pattern, theline) == 0)
6191 break;
6192
6193 ga_concat(&ga, theline);
6194 ga_append(&ga, '\n');
6195 vim_free(theline);
6196 }
6197 ga_append(&ga, NUL);
6198
6199 return (char_u *)ga.ga_data;
6200 }
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