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All file compared and corrected with /doc/mc.1.in.
[midnight-commander.git] / edit / editcmd.c
blob98160053b3edbcff56b98665bf9c12a5acec3087
1 /* editor high level editing commands.
2
3 Copyright (C) 1996, 1997 the Free Software Foundation
4
5 Authors: 1996, 1997 Paul Sheer
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 02111-1307, USA.
21
22 */
23
24 /* #define PIPE_BLOCKS_SO_READ_BYTE_BY_BYTE */
25
26 #include <config.h>
27 #include <ctype.h>
28
29 #include "edit.h"
30 #include "editcmddef.h"
31
32 #include "src/color.h" /* dialog_colors */
33 #include "src/tty.h" /* LINES */
34 #include "src/widget.h" /* listbox_new() */
35 #include "src/main.h" /* mc_home */
36 #include "src/help.h" /* interactive_display() */
37 #include "src/key.h" /* XCTRL */
38 #include "src/wtools.h" /* message() */
39 #include "src/charsets.h"
40
41 /* globals: */
42
43 /* search and replace: */
44 int replace_scanf = 0;
45 int replace_regexp = 0;
46 int replace_all = 0;
47 int replace_prompt = 1;
48 int replace_whole = 0;
49 int replace_case = 0;
50 int replace_backwards = 0;
51 int search_create_bookmark = 0;
52
53 /* queries on a save */
54 int edit_confirm_save = 1;
55
56 #define NUM_REPL_ARGS 64
57 #define MAX_REPL_LEN 1024
58
59 static inline int my_lower_case (int c)
60 {
61 return tolower(c & 0xFF);
62 }
63
64 char *strcasechr (const unsigned char *s, int c)
65 {
66 for (c = my_lower_case (c); my_lower_case ((int) *s) != c; ++s)
67 if (*s == '\0')
68 return 0;
69 return (char *) s;
70 }
71
72 #ifndef HAVE_MEMMOVE
73 /* for Christophe */
74 static void *memmove (void *dest, const void *src, size_t n)
75 {
76 char *t, *s;
77
78 if (dest <= src) {
79 t = (char *) dest;
80 s = (char *) src;
81 while (n--)
82 *t++ = *s++;
83 } else {
84 t = (char *) dest + n;
85 s = (char *) src + n;
86 while (n--)
87 *--t = *--s;
88 }
89 return dest;
90 }
91 #endif /* !HAVE_MEMMOVE */
92
93 /* #define itoa MY_itoa <---- this line is now in edit.h */
94 static char *
95 MY_itoa (int i)
96 {
97 static char t[14];
98 char *s = t + 13;
99 int j = i;
100 *s-- = 0;
101 do {
102 *s-- = i % 10 + '0';
103 } while ((i = i / 10));
104 if (j < 0)
105 *s-- = '-';
106 return ++s;
107 }
108
109 /* Temporary strings */
110 static char *stacked[16];
111
112 /*
113 This joins strings end on end and allocates memory for the result.
114 The result is later automatically free'd and must not be free'd
115 by the caller.
116 */
117 char *catstrs (const char *first,...)
118 {
119 static int i = 0;
120 va_list ap;
121 int len;
122 char *data;
123
124 if (!first)
125 return 0;
126
127 len = strlen (first);
128 va_start (ap, first);
129
130 while ((data = va_arg (ap, char *)) != 0)
131 len += strlen (data);
132
133 len++;
134
135 i = (i + 1) % 16;
136 g_free (stacked[i]);
137
138 stacked[i] = g_malloc (len);
139 va_end (ap);
140 va_start (ap, first);
141 strcpy (stacked[i], first);
142 while ((data = va_arg (ap, char *)) != 0)
143 strcat (stacked[i], data);
144 va_end (ap);
145
146 return stacked[i];
147 }
148
149 /* Free temporary strings */
150 void freestrs(void)
151 {
152 int i;
153
154 for (i = 0; i < sizeof(stacked) / sizeof(stacked[0]); i++) {
155 g_free (stacked[i]);
156 stacked[i] = NULL;
157 }
158 }
159
160 void edit_help_cmd (WEdit * edit)
161 {
162 interactive_display (NULL, "[Internal File Editor]");
163 edit->force |= REDRAW_COMPLETELY;
164 }
165
166 void edit_refresh_cmd (WEdit * edit)
167 {
168 #ifndef HAVE_SLANG
169 clr_scr();
170 do_refresh();
171 #else
172 {
173 int color;
174 edit_get_syntax_color (edit, -1, &color);
175 }
176 touchwin(stdscr);
177 #endif /* !HAVE_SLANG */
178 mc_refresh();
179 doupdate();
180 }
181
182 /* "Oleg Yu. Repin" <repin@ssd.sscc.ru> added backup filenames
183 ...thanks -paul */
184
185 /* If 0 (quick save) then a) create/truncate <filename> file,
186 b) save to <filename>;
187 if 1 (safe save) then a) save to <tempnam>,
188 b) rename <tempnam> to <filename>;
189 if 2 (do backups) then a) save to <tempnam>,
190 b) rename <filename> to <filename.backup_ext>,
191 c) rename <tempnam> to <filename>. */
192
193 /* returns 0 on error */
194 int edit_save_file (WEdit * edit, const char *filename)
195 {
196 char *p;
197 long filelen = 0;
198 char *savename = 0;
199 int this_save_mode, fd;
200
201 if (!filename)
202 return 0;
203 if (!*filename)
204 return 0;
205
206 if ((fd = mc_open (filename, O_WRONLY | O_BINARY)) == -1) {
207 /*
208 * The file does not exists yet, so no safe save or
209 * backup are necessary.
210 */
211 this_save_mode = 0;
212 } else {
213 mc_close (fd);
214 this_save_mode = option_save_mode;
215 }
216
217 if (this_save_mode > 0) {
218 char *savedir, *slashpos, *saveprefix;
219 slashpos = strrchr (filename, PATH_SEP);
220 if (slashpos) {
221 savedir = (char *) strdup (filename);
222 savedir[slashpos - filename + 1] = '\0';
223 } else
224 savedir = (char *) strdup (".");
225 saveprefix = concat_dir_and_file (savedir, "cooledit");
226 free (savedir);
227 fd = mc_mkstemps(&savename, saveprefix, NULL);
228 g_free (saveprefix);
229 if (!savename)
230 return 0;
231 /* FIXME:
232 * Close for now because mc_mkstemps use pure open system call
233 * to create temporary file and it needs to be reopened by
234 * VFS-aware mc_open().
235 */
236 close (fd);
237 } else
238 savename = g_strdup (filename);
239
240 mc_chown (savename, edit->stat1.st_uid, edit->stat1.st_gid);
241 mc_chmod (savename, edit->stat1.st_mode);
242
243 if ((fd = mc_open (savename, O_CREAT | O_WRONLY | O_TRUNC | O_BINARY ,
244 edit->stat1.st_mode)) == -1)
245 goto error_save;
246
247 /* pipe save */
248 if ((p = (char *) edit_get_write_filter (savename, filename))) {
249 FILE *file;
250
251 mc_close (fd);
252 file = (FILE *) popen (p, "w");
253
254 if (file) {
255 filelen = edit_write_stream (edit, file);
256 #if 1
257 pclose (file);
258 #else
259 if (pclose (file) != 0) {
260 edit_error_dialog (_ ("Error"), catstrs (_ (" Error writing to pipe: "), p, " ", 0));
261 free (p);
262 goto error_save;
263 }
264 #endif
265 } else {
266 edit_error_dialog (_ ("Error"), get_sys_error (catstrs (_ (" Failed trying to open pipe for writing: "), p, " ", 0)));
267 free (p);
268 goto error_save;
269 }
270 free (p);
271 } else {
272 long buf;
273 buf = 0;
274 filelen = edit->last_byte;
275 while (buf <= (edit->curs1 >> S_EDIT_BUF_SIZE) - 1) {
276 if (mc_write (fd, (char *) edit->buffers1[buf], EDIT_BUF_SIZE) != EDIT_BUF_SIZE) {
277 mc_close (fd);
278 goto error_save;
279 }
280 buf++;
281 }
282 if (mc_write (fd, (char *) edit->buffers1[buf], edit->curs1 & M_EDIT_BUF_SIZE) != (edit->curs1 & M_EDIT_BUF_SIZE)) {
283 filelen = -1;
284 } else if (edit->curs2) {
285 edit->curs2--;
286 buf = (edit->curs2 >> S_EDIT_BUF_SIZE);
287 if (mc_write (fd, (char *) edit->buffers2[buf] + EDIT_BUF_SIZE - (edit->curs2 & M_EDIT_BUF_SIZE) - 1, 1 + (edit->curs2 & M_EDIT_BUF_SIZE)) != 1 + (edit->curs2 & M_EDIT_BUF_SIZE)) {
288 filelen = -1;
289 } else {
290 while (--buf >= 0) {
291 if (mc_write (fd, (char *) edit->buffers2[buf], EDIT_BUF_SIZE) != EDIT_BUF_SIZE) {
292 filelen = -1;
293 break;
294 }
295 }
296 }
297 edit->curs2++;
298 }
299 if (mc_close (fd))
300 goto error_save;
301 }
302
303 if (filelen != edit->last_byte)
304 goto error_save;
305 if (this_save_mode == 2)
306 if (mc_rename (filename, catstrs (filename, option_backup_ext, 0)) == -1)
307 goto error_save;
308 if (this_save_mode > 0)
309 if (mc_rename (savename, filename) == -1)
310 goto error_save;
311 if (savename)
312 g_free (savename);
313 return 1;
314 error_save:
315 if (savename)
316 g_free (savename);
317 return 0;
318 }
319
320 /*
321 I changed this from Oleg's original routine so
322 that option_backup_ext works with coolwidgets as well. This
323 does mean there is a memory leak - paul.
324 */
325 void menu_save_mode_cmd (void)
326 {
327 #define DLG_X 38
328 #define DLG_Y 10
329 static char *str_result;
330 static int save_mode_new;
331 static char *str[] =
332 {
333 N_("Quick save "),
334 N_("Safe save "),
335 N_("Do backups -->")};
336 static QuickWidget widgets[] =
337 {
338 {quick_button, 18, DLG_X, 7, DLG_Y, N_("&Cancel"), 0,
339 B_CANCEL, 0, 0, "c"},
340 {quick_button, 6, DLG_X, 7, DLG_Y, N_("&OK"), 0,
341 B_ENTER, 0, 0, "o"},
342 {quick_input, 23, DLG_X, 5, DLG_Y, 0, 9,
343 0, 0, &str_result, "edit-backup-ext"},
344 {quick_label, 22, DLG_X, 4, DLG_Y, N_("Extension:"), 0,
345 0, 0, 0, "savemext"},
346 {quick_radio, 4, DLG_X, 3, DLG_Y, "", 3,
347 0, &save_mode_new, str, "t"},
348 {0}};
349 static QuickDialog dialog =
350 {DLG_X, DLG_Y, -1, -1, N_(" Edit Save Mode "), "[Edit Save Mode]",
351 widgets};
352 static int i18n_flag = 0;
353
354 if (!i18n_flag) {
355 int i;
356 int maxlen = 0;
357 int dlg_x;
358 int l1;
359
360 /* Ok/Cancel buttons */
361 l1 = strlen (_(widgets[0].text)) + strlen (_(widgets[1].text)) + 5;
362 maxlen = max (maxlen, l1);
363
364 for (i = 0; i < 3; i++ ) {
365 str[i] = _(str[i]);
366 maxlen = max (maxlen, strlen (str[i]) + 7);
367 }
368 i18n_flag = 1;
369
370 dlg_x = maxlen + strlen (_(widgets[3].text)) + 5 + 1;
371 widgets[2].hotkey_pos = strlen (_(widgets[3].text)); /* input field length */
372 dlg_x = min (COLS, dlg_x);
373 dialog.xlen = dlg_x;
374
375 i = (dlg_x - l1)/3;
376 widgets[1].relative_x = i;
377 widgets[0].relative_x = i + strlen (_(widgets[1].text)) + i + 4;
378
379 widgets[2].relative_x = widgets[3].relative_x = maxlen + 2;
380
381 for (i = 0; i < sizeof (widgets)/sizeof (widgets[0]); i++)
382 widgets[i].x_divisions = dlg_x;
383 }
384
385 widgets[2].text = option_backup_ext;
386 widgets[4].value = option_save_mode;
387 if (quick_dialog (&dialog) != B_ENTER)
388 return;
389 option_save_mode = save_mode_new;
390 option_backup_ext = str_result; /* this is a memory leak */
391 option_backup_ext_int = 0;
392 str_result[min (strlen (str_result), sizeof (int))] = '\0';
393 memcpy ((char *) &option_backup_ext_int, str_result, strlen (option_backup_ext));
394 }
395
396 void edit_split_filename (WEdit * edit, const char *f)
397 {
398 if (edit->filename)
399 free (edit->filename);
400 edit->filename = (char *) strdup (f);
401 if (edit->dir)
402 free (edit->dir);
403 edit->dir = (char *) strdup ("");
404 }
405
406 /* Here we want to warn the users of overwriting an existing file,
407 but only if they have made a change to the filename */
408 /* returns 1 on success */
409 int edit_save_as_cmd (WEdit * edit)
410 {
411 /* This heads the 'Save As' dialog box */
412 char *exp = 0;
413 int different_filename = 0;
414
415 exp = edit_get_save_file (edit->dir, edit->filename, _(" Save As "));
416 edit_push_action (edit, KEY_PRESS + edit->start_display);
417
418 if (exp) {
419 if (!*exp) {
420 g_free (exp);
421 edit->force |= REDRAW_COMPLETELY;
422 return 0;
423 } else {
424 if (strcmp(catstrs (edit->dir, edit->filename, 0), exp)) {
425 int file;
426 different_filename = 1;
427 if ((file = mc_open (exp, O_RDONLY | O_BINARY)) != -1) { /* the file exists */
428 mc_close (file);
429 if (edit_query_dialog2 (_("Warning"),
430 _(" A file already exists with this name. "),
431 /* Push buttons to over-write the current file, or cancel the operation */
432 _("Overwrite"), _("Cancel"))) {
433 edit->force |= REDRAW_COMPLETELY;
434 g_free (exp);
435 return 0;
436 }
437 }
438 }
439 if (edit_save_file (edit, exp)) {
440 edit_split_filename (edit, exp);
441 g_free (exp);
442 edit->modified = 0;
443 edit->delete_file = 0;
444 if (different_filename && !edit->explicit_syntax)
445 edit_load_syntax (edit, 0, 0);
446 edit->force |= REDRAW_COMPLETELY;
447 return 1;
448 } else {
449 g_free (exp);
450 edit_error_dialog (_(" Save As "), get_sys_error (_(" Error trying to save file. ")));
451 edit->force |= REDRAW_COMPLETELY;
452 return 0;
453 }
454 }
455 }
456 edit->force |= REDRAW_COMPLETELY;
457 return 0;
458 }
459
460 /* {{{ Macro stuff starts here */
461
462 static int
463 raw_callback (struct Dlg_head *h, int key, int Msg)
464 {
465 switch (Msg) {
466 case DLG_KEY:
467 h->running = 0;
468 h->ret_value = key;
469 return MSG_HANDLED;
470 }
471 return default_dlg_callback (h, key, Msg);;
472 }
473
474 /* gets a raw key from the keyboard. Passing cancel = 1 draws
475 a cancel button thus allowing c-c etc. Alternatively, cancel = 0
476 will return the next key pressed. ctrl-a (=B_CANCEL), ctrl-g, ctrl-c,
477 and Esc are cannot returned */
478 int
479 edit_raw_key_query (char *heading, char *query, int cancel)
480 {
481 int w = strlen (query) + 7;
482 struct Dlg_head *raw_dlg =
483 create_dlg (0, 0, 7, w, dialog_colors, raw_callback,
484 NULL, heading,
485 DLG_CENTER | DLG_TRYUP | DLG_WANT_TAB);
486 if (cancel)
487 add_widget (raw_dlg,
488 button_new (4, w / 2 - 5, B_CANCEL, NORMAL_BUTTON,
489 _("Cancel"), 0, 0, 0));
490 add_widget (raw_dlg, label_new (3 - cancel, 2, query, 0));
491 add_widget (raw_dlg,
492 input_new (3 - cancel, w - 5, INPUT_COLOR, 2, "", 0));
493 run_dlg (raw_dlg);
494 w = raw_dlg->ret_value;
495 destroy_dlg (raw_dlg);
496 if (cancel) {
497 if (w == XCTRL ('g') || w == XCTRL ('c') || w == ESC_CHAR
498 || w == B_CANCEL)
499 return 0;
500 }
501
502 return w;
503 }
504
505 /* creates a macro file if it doesn't exist */
506 static FILE *edit_open_macro_file (const char *r)
507 {
508 char *filename;
509 int file;
510 filename = catstrs (home_dir, MACRO_FILE, 0);
511 if ((file = open (filename, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)) == -1)
512 return 0;
513 close (file);
514 return fopen (filename, r);
515 }
516
517 #define MAX_MACROS 1024
518 static int saved_macro[MAX_MACROS + 1];
519 static int saved_macros_loaded = 0;
520
521 /*
522 This is just to stop the macro file be loaded over and over for keys
523 that aren't defined to anything. On slow systems this could be annoying.
524 */
525 static int
526 macro_exists (int k)
527 {
528 int i;
529 for (i = 0; i < MAX_MACROS && saved_macro[i]; i++)
530 if (saved_macro[i] == k)
531 return i;
532 return -1;
533 }
534
535 /* returns 1 on error */
536 static int
537 edit_delete_macro (WEdit * edit, int k)
538 {
539 struct macro macro[MAX_MACRO_LENGTH];
540 FILE *f, *g;
541 int s, i, n, j = 0;
542
543 if (saved_macros_loaded)
544 if ((j = macro_exists (k)) < 0)
545 return 0;
546 g = fopen (catstrs (home_dir, TEMP_FILE, 0), "w");
547 if (!g) {
548 /* This heads the delete macro error dialog box */
549 edit_error_dialog (_(" Delete macro "),
550 /* 'Open' = load temp file */
551 get_sys_error (_(" Error trying to open temp file ")));
552 return 1;
553 }
554 f = edit_open_macro_file ("r");
555 if (!f) {
556 /* This heads the delete macro error dialog box */
557 edit_error_dialog (_(" Delete macro "),
558 /* 'Open' = load temp file */
559 get_sys_error (_(" Error trying to open macro file ")));
560 fclose (g);
561 return 1;
562 }
563 for (;;) {
564 n = fscanf (f, ("key '%d 0': "), &s);
565 if (!n || n == EOF)
566 break;
567 n = 0;
568 while (fscanf (f, "%hd %hd, ", &macro[n].command, &macro[n].ch))
569 n++;
570 fscanf (f, ";\n");
571 if (s != k) {
572 fprintf (g, ("key '%d 0': "), s);
573 for (i = 0; i < n; i++)
574 fprintf (g, "%hd %hd, ", macro[i].command, macro[i].ch);
575 fprintf (g, ";\n");
576 }
577 }
578 fclose (f);
579 fclose (g);
580 if (rename (catstrs (home_dir, TEMP_FILE, 0), catstrs (home_dir, MACRO_FILE, 0)) == -1) {
581 /* This heads the delete macro error dialog box */
582 edit_error_dialog (_(" Delete macro "),
583 get_sys_error (_(" Error trying to overwrite macro file ")));
584 return 1;
585 }
586 if (saved_macros_loaded)
587 memmove (saved_macro + j, saved_macro + j + 1, sizeof (int) * (MAX_MACROS - j - 1));
588 return 0;
589 }
590
591 /* returns 0 on error */
592 int edit_save_macro_cmd (WEdit * edit, struct macro macro[], int n)
593 {
594 FILE *f;
595 int s, i;
596
597 edit_push_action (edit, KEY_PRESS + edit->start_display);
598 /* This heads the 'Macro' dialog box */
599 s = edit_raw_key_query (_(" Save macro "),
600 /* Input line for a single key press follows the ':' */
601 _(" Press the macro's new hotkey: "), 1);
602 edit->force |= REDRAW_COMPLETELY;
603 if (s) {
604 if (edit_delete_macro (edit, s))
605 return 0;
606 f = edit_open_macro_file ("a+");
607 if (f) {
608 fprintf (f, ("key '%d 0': "), s);
609 for (i = 0; i < n; i++)
610 fprintf (f, "%hd %hd, ", macro[i].command, macro[i].ch);
611 fprintf (f, ";\n");
612 fclose (f);
613 if (saved_macros_loaded) {
614 for (i = 0; i < MAX_MACROS && saved_macro[i]; i++);
615 saved_macro[i] = s;
616 }
617 return 1;
618 } else
619 /* This heads the 'Save Macro' dialog box */
620 edit_error_dialog (_(" Save macro "), get_sys_error (_(" Error trying to open macro file ")));
621 }
622 return 0;
623 }
624
625 void edit_delete_macro_cmd (WEdit * edit)
626 {
627 int command;
628
629 command = edit_raw_key_query (_ (" Delete macro "),
630 _ (" Press macro hotkey: "), 1);
631
632 if (!command)
633 return;
634
635 edit_delete_macro (edit, command);
636 }
637
638 /* return 0 on error */
639 int edit_load_macro_cmd (WEdit * edit, struct macro macro[], int *n, int k)
640 {
641 FILE *f;
642 int s, i = 0, found = 0;
643
644 if (saved_macros_loaded)
645 if (macro_exists (k) < 0)
646 return 0;
647
648 if ((f = edit_open_macro_file ("r"))) {
649 struct macro dummy;
650 do {
651 int u;
652 u = fscanf (f, ("key '%d 0': "), &s);
653 if (!u || u == EOF)
654 break;
655 if (!saved_macros_loaded)
656 saved_macro[i++] = s;
657 if (!found) {
658 *n = 0;
659 while (*n < MAX_MACRO_LENGTH && 2 == fscanf (f, "%hd %hd, ", &macro[*n].command, &macro[*n].ch))
660 (*n)++;
661 } else {
662 while (2 == fscanf (f, "%hd %hd, ", &dummy.command, &dummy.ch));
663 }
664 fscanf (f, ";\n");
665 if (s == k)
666 found = 1;
667 } while (!found || !saved_macros_loaded);
668 if (!saved_macros_loaded) {
669 saved_macro[i] = 0;
670 saved_macros_loaded = 1;
671 }
672 fclose (f);
673 return found;
674 } else
675 /* This heads the 'Load Macro' dialog box */
676 edit_error_dialog (_(" Load macro "),
677 get_sys_error (_(" Error trying to open macro file ")));
678 return 0;
679 }
680
681 /* }}} Macro stuff starts here */
682
683 /* returns 1 on success */
684 int edit_save_confirm_cmd (WEdit * edit)
685 {
686 char *f;
687
688 if (edit_confirm_save) {
689 f = catstrs (_(" Confirm save file? : "), edit->filename, " ", 0);
690 /* Buttons to 'Confirm save file' query */
691 if (edit_query_dialog2 (_(" Save file "), f, _("Save"), _("Cancel")))
692 return 0;
693 }
694 return edit_save_cmd (edit);
695 }
696
697
698 /* returns 1 on success */
699 int edit_save_cmd (WEdit * edit)
700 {
701 if (!edit_save_file (edit, catstrs (edit->dir, edit->filename, 0)))
702 return edit_save_as_cmd (edit);
703 edit->force |= REDRAW_COMPLETELY;
704 edit->modified = 0;
705 edit->delete_file = 0;
706
707 return 1;
708 }
709
710
711 /* returns 1 on success */
712 int edit_new_cmd (WEdit * edit)
713 {
714 if (edit->modified) {
715 if (edit_query_dialog2 (_ ("Warning"), _ (" Current text was modified without a file save. \n Continue discards these changes. "), _ ("Continue"), _ ("Cancel"))) {
716 edit->force |= REDRAW_COMPLETELY;
717 return 0;
718 }
719 }
720 edit->force |= REDRAW_COMPLETELY;
721 edit->modified = 0;
722 return edit_renew (edit); /* if this gives an error, something has really screwed up */
723 }
724
725 /* returns 1 on error */
726 static int
727 edit_load_file_from_filename (WEdit * edit, char *exp)
728 {
729 if (!edit_reload (edit, exp, 0, "", 0))
730 return 1;
731 edit_split_filename (edit, exp);
732 edit->modified = 0;
733 return 0;
734 }
735
736 int edit_load_cmd (WEdit * edit)
737 {
738 char *exp;
739
740 if (edit->modified) {
741 if (edit_query_dialog2 (_ ("Warning"), _ (" Current text was modified without a file save. \n Continue discards these changes. "), _ ("Continue"), _ ("Cancel"))) {
742 edit->force |= REDRAW_COMPLETELY;
743 return 0;
744 }
745 }
746
747 exp = edit_get_load_file (edit->dir, edit->filename, _ (" Load "));
748
749 if (exp) {
750 if (*exp)
751 edit_load_file_from_filename (edit, exp);
752 g_free (exp);
753 }
754 edit->force |= REDRAW_COMPLETELY;
755 return 0;
756 }
757
758 /*
759 if mark2 is -1 then marking is from mark1 to the cursor.
760 Otherwise its between the markers. This handles this.
761 Returns 1 if no text is marked.
762 */
763 int eval_marks (WEdit * edit, long *start_mark, long *end_mark)
764 {
765 if (edit->mark1 != edit->mark2) {
766 if (edit->mark2 >= 0) {
767 *start_mark = min (edit->mark1, edit->mark2);
768 *end_mark = max (edit->mark1, edit->mark2);
769 } else {
770 *start_mark = min (edit->mark1, edit->curs1);
771 *end_mark = max (edit->mark1, edit->curs1);
772 edit->column2 = edit->curs_col;
773 }
774 return 0;
775 } else {
776 *start_mark = *end_mark = 0;
777 edit->column2 = edit->column1 = 0;
778 return 1;
779 }
780 }
781
782 #define space_width 1
783
784 static void
785 edit_insert_column_of_text (WEdit * edit, unsigned char *data, int size, int width)
786 {
787 long cursor;
788 int i, col;
789 cursor = edit->curs1;
790 col = edit_get_col (edit);
791 for (i = 0; i < size; i++) {
792 if (data[i] == '\n') { /* fill in and move to next line */
793 int l;
794 long p;
795 if (edit_get_byte (edit, edit->curs1) != '\n') {
796 l = width - (edit_get_col (edit) - col);
797 while (l > 0) {
798 edit_insert (edit, ' ');
799 l -= space_width;
800 }
801 }
802 for (p = edit->curs1;; p++) {
803 if (p == edit->last_byte) {
804 edit_cursor_move (edit, edit->last_byte - edit->curs1);
805 edit_insert_ahead (edit, '\n');
806 p++;
807 break;
808 }
809 if (edit_get_byte (edit, p) == '\n') {
810 p++;
811 break;
812 }
813 }
814 edit_cursor_move (edit, edit_move_forward3 (edit, p, col, 0) - edit->curs1);
815 l = col - edit_get_col (edit);
816 while (l >= space_width) {
817 edit_insert (edit, ' ');
818 l -= space_width;
819 }
820 continue;
821 }
822 edit_insert (edit, data[i]);
823 }
824 edit_cursor_move (edit, cursor - edit->curs1);
825 }
826
827
828 void edit_block_copy_cmd (WEdit * edit)
829 {
830 long start_mark, end_mark, current = edit->curs1;
831 int size, x;
832 unsigned char *copy_buf;
833
834 edit_update_curs_col (edit);
835 x = edit->curs_col;
836 if (eval_marks (edit, &start_mark, &end_mark))
837 return;
838 if (column_highlighting)
839 if ((x >= edit->column1 && x < edit->column2) || (x > edit->column2 && x <= edit->column1))
840 return;
841
842 copy_buf = edit_get_block (edit, start_mark, end_mark, &size);
843
844 /* all that gets pushed are deletes hence little space is used on the stack */
845
846 edit_push_markers (edit);
847
848 if (column_highlighting) {
849 edit_insert_column_of_text (edit, copy_buf, size, abs (edit->column2 - edit->column1));
850 } else {
851 while (size--)
852 edit_insert_ahead (edit, copy_buf[size]);
853 }
854
855 free (copy_buf);
856 edit_scroll_screen_over_cursor (edit);
857
858 if (column_highlighting) {
859 edit_set_markers (edit, 0, 0, 0, 0);
860 edit_push_action (edit, COLUMN_ON);
861 column_highlighting = 0;
862 } else if (start_mark < current && end_mark > current)
863 edit_set_markers (edit, start_mark, end_mark + end_mark - start_mark, 0, 0);
864
865 edit->force |= REDRAW_PAGE;
866 }
867
868
869 void edit_block_move_cmd (WEdit * edit)
870 {
871 long count;
872 long current;
873 unsigned char *copy_buf;
874 long start_mark, end_mark;
875 int deleted = 0;
876 int x = 0;
877
878 if (eval_marks (edit, &start_mark, &end_mark))
879 return;
880 if (column_highlighting) {
881 edit_update_curs_col (edit);
882 x = edit->curs_col;
883 if (start_mark <= edit->curs1 && end_mark >= edit->curs1)
884 if ((x > edit->column1 && x < edit->column2) || (x > edit->column2 && x < edit->column1))
885 return;
886 } else if (start_mark <= edit->curs1 && end_mark >= edit->curs1)
887 return;
888
889 if ((end_mark - start_mark) > option_max_undo / 2)
890 if (edit_query_dialog2 (_ ("Warning"), _ (" Block is large, you may not be able to undo this action. "), _ ("Continue"), _ ("Cancel")))
891 return;
892
893 edit_push_markers (edit);
894 current = edit->curs1;
895 if (column_highlighting) {
896 int size, c1, c2, line;
897 line = edit->curs_line;
898 if (edit->mark2 < 0)
899 edit_mark_cmd (edit, 0);
900 c1 = min (edit->column1, edit->column2);
901 c2 = max (edit->column1, edit->column2);
902 copy_buf = edit_get_block (edit, start_mark, end_mark, &size);
903 if (x < c2) {
904 edit_block_delete_cmd (edit);
905 deleted = 1;
906 }
907 edit_move_to_line (edit, line);
908 edit_cursor_move (edit, edit_move_forward3 (edit, edit_bol (edit, edit->curs1), x, 0) - edit->curs1);
909 edit_insert_column_of_text (edit, copy_buf, size, c2 - c1);
910 if (!deleted) {
911 line = edit->curs_line;
912 edit_update_curs_col (edit);
913 x = edit->curs_col;
914 edit_block_delete_cmd (edit);
915 edit_move_to_line (edit, line);
916 edit_cursor_move (edit, edit_move_forward3 (edit, edit_bol (edit, edit->curs1), x, 0) - edit->curs1);
917 }
918 edit_set_markers (edit, 0, 0, 0, 0);
919 edit_push_action (edit, COLUMN_ON);
920 column_highlighting = 0;
921 } else {
922 copy_buf = malloc (end_mark - start_mark);
923 edit_cursor_move (edit, start_mark - edit->curs1);
924 edit_scroll_screen_over_cursor (edit);
925 count = start_mark;
926 while (count < end_mark) {
927 copy_buf[end_mark - count - 1] = edit_delete (edit);
928 count++;
929 }
930 edit_scroll_screen_over_cursor (edit);
931 edit_cursor_move (edit, current - edit->curs1 - (((current - edit->curs1) > 0) ? end_mark - start_mark : 0));
932 edit_scroll_screen_over_cursor (edit);
933 while (count-- > start_mark)
934 edit_insert_ahead (edit, copy_buf[end_mark - count - 1]);
935 edit_set_markers (edit, edit->curs1, edit->curs1 + end_mark - start_mark, 0, 0);
936 }
937 edit_scroll_screen_over_cursor (edit);
938 free (copy_buf);
939 edit->force |= REDRAW_PAGE;
940 }
941
942 static void
943 edit_delete_column_of_text (WEdit * edit)
944 {
945 long p, q, r, m1, m2;
946 int b, c, d;
947 int n;
948
949 eval_marks (edit, &m1, &m2);
950 n = edit_move_forward (edit, m1, 0, m2) + 1;
951 c = edit_move_forward3 (edit, edit_bol (edit, m1), 0, m1);
952 d = edit_move_forward3 (edit, edit_bol (edit, m2), 0, m2);
953
954 b = min (c, d);
955 c = max (c, d);
956
957 while (n--) {
958 r = edit_bol (edit, edit->curs1);
959 p = edit_move_forward3 (edit, r, b, 0);
960 q = edit_move_forward3 (edit, r, c, 0);
961 if (p < m1)
962 p = m1;
963 if (q > m2)
964 q = m2;
965 edit_cursor_move (edit, p - edit->curs1);
966 while (q > p) { /* delete line between margins */
967 if (edit_get_byte (edit, edit->curs1) != '\n')
968 edit_delete (edit);
969 q--;
970 }
971 if (n) /* move to next line except on the last delete */
972 edit_cursor_move (edit, edit_move_forward (edit, edit->curs1, 1, 0) - edit->curs1);
973 }
974 }
975
976 /* if success return 0 */
977 int
978 edit_block_delete (WEdit *edit)
979 {
980 long count;
981 long start_mark, end_mark;
982 if (eval_marks (edit, &start_mark, &end_mark))
983 return 0;
984 if (column_highlighting && edit->mark2 < 0)
985 edit_mark_cmd (edit, 0);
986 if ((end_mark - start_mark) > option_max_undo / 2) {
987 /* Warning message with a query to continue or cancel the operation */
988 if (edit_query_dialog2
989 (_("Warning"),
990 _
991 (" Block is large, you may not be able to undo this action. "),
992 _("Continue"), _("Cancel"))) {
993 return 1;
994 }
995 }
996 edit_push_markers (edit);
997 edit_cursor_move (edit, start_mark - edit->curs1);
998 edit_scroll_screen_over_cursor (edit);
999 count = start_mark;
1000 if (start_mark < end_mark) {
1001 if (column_highlighting) {
1002 if (edit->mark2 < 0)
1003 edit_mark_cmd (edit, 0);
1004 edit_delete_column_of_text (edit);
1005 } else {
1006 while (count < end_mark) {
1007 edit_delete (edit);
1008 count++;
1009 }
1010 }
1011 }
1012 edit_set_markers (edit, 0, 0, 0, 0);
1013 edit->force |= REDRAW_PAGE;
1014 return 0;
1015 }
1016
1017 /* returns 1 if canceelled by user */
1018 int edit_block_delete_cmd (WEdit * edit)
1019 {
1020 long start_mark, end_mark;
1021 if (eval_marks (edit, &start_mark, &end_mark)) {
1022 edit_delete_line (edit);
1023 return 0;
1024 }
1025 return edit_block_delete (edit);
1026 }
1027
1028
1029 #define INPUT_INDEX 9
1030 #define SEARCH_DLG_WIDTH 58
1031 #define SEARCH_DLG_HEIGHT 10
1032 #define REPLACE_DLG_WIDTH 58
1033 #define REPLACE_DLG_HEIGHT 15
1034 #define CONFIRM_DLG_WIDTH 79
1035 #define CONFIRM_DLG_HEIGTH 6
1036 #define B_REPLACE_ALL B_USER+1
1037 #define B_REPLACE_ONE B_USER+2
1038 #define B_SKIP_REPLACE B_USER+3
1039
1040 static int
1041 edit_replace_prompt (WEdit * edit, char *replace_text, int xpos, int ypos)
1042 {
1043 QuickWidget quick_widgets[] =
1044 {
1045 {quick_button, 63, CONFIRM_DLG_WIDTH, 3, CONFIRM_DLG_HEIGTH, N_ ("&Cancel"),
1046 0, B_CANCEL, 0, 0, NULL},
1047 {quick_button, 50, CONFIRM_DLG_WIDTH, 3, CONFIRM_DLG_HEIGTH, N_ ("O&ne"),
1048 0, B_REPLACE_ONE, 0, 0, NULL},
1049 {quick_button, 37, CONFIRM_DLG_WIDTH, 3, CONFIRM_DLG_HEIGTH, N_ ("A&ll"),
1050 0, B_REPLACE_ALL, 0, 0, NULL},
1051 {quick_button, 21, CONFIRM_DLG_WIDTH, 3, CONFIRM_DLG_HEIGTH, N_ ("&Skip"),
1052 0, B_SKIP_REPLACE, 0, 0, NULL},
1053 {quick_button, 4, CONFIRM_DLG_WIDTH, 3, CONFIRM_DLG_HEIGTH, N_ ("&Replace"),
1054 0, B_ENTER, 0, 0, NULL},
1055 {quick_label, 2, CONFIRM_DLG_WIDTH, 2, CONFIRM_DLG_HEIGTH, 0,
1056 0, 0, 0, 0, 0},
1057 {0}};
1058
1059 #ifdef HAVE_CHARSET
1060 char *msg = _(" Replace with: ");
1061
1062 quick_widgets[5].text = catstrs (msg, replace_text, 0);
1063
1064 if (*replace_text)
1065 convert_to_display (quick_widgets[5].text + strlen (msg));
1066 #else
1067 quick_widgets[5].text = catstrs (_ (" Replace with: "), replace_text, 0);
1068 #endif /* !HAVE_CHARSET */
1069
1070 {
1071 QuickDialog Quick_input =
1072 {CONFIRM_DLG_WIDTH, CONFIRM_DLG_HEIGTH, 0, 0, N_ (" Confirm replace "),
1073 "[Input Line Keys]", 0 /*quick_widgets */ };
1074
1075 Quick_input.widgets = quick_widgets;
1076
1077 Quick_input.xpos = xpos;
1078
1079 /* Sometimes menu can hide replaced text. I don't like it */
1080
1081 if ((edit->curs_row >= ypos - 1) && (edit->curs_row <= ypos + CONFIRM_DLG_HEIGTH - 1))
1082 ypos -= CONFIRM_DLG_HEIGTH;
1083
1084 Quick_input.ypos = ypos;
1085 return quick_dialog (&Quick_input);
1086 }
1087 }
1088
1089 static void
1090 edit_replace_dialog (WEdit * edit, char **search_text, char **replace_text, char **arg_order)
1091 {
1092 int treplace_scanf = replace_scanf;
1093 int treplace_regexp = replace_regexp;
1094 int treplace_all = replace_all;
1095 int treplace_prompt = replace_prompt;
1096 int treplace_backwards = replace_backwards;
1097 int treplace_whole = replace_whole;
1098 int treplace_case = replace_case;
1099
1100 QuickWidget quick_widgets[] =
1101 {
1102 {quick_button, 6, 10, 12, REPLACE_DLG_HEIGHT, N_("&Cancel"), 0, B_CANCEL, 0,
1103 0, NULL},
1104 {quick_button, 2, 10, 12, REPLACE_DLG_HEIGHT, N_("&OK"), 0, B_ENTER, 0,
1105 0, NULL},
1106 {quick_checkbox, 33, REPLACE_DLG_WIDTH, 11, REPLACE_DLG_HEIGHT, N_("scanf &Expression"), 0, 0,
1107 0, 0, NULL},
1108 {quick_checkbox, 33, REPLACE_DLG_WIDTH, 10, REPLACE_DLG_HEIGHT, N_("replace &All"), 0, 0,
1109 0, 0, NULL},
1110 {quick_checkbox, 33, REPLACE_DLG_WIDTH, 9, REPLACE_DLG_HEIGHT, N_("pr&Ompt on replace"), 0, 0,
1111 0, 0, NULL},
1112 {quick_checkbox, 4, REPLACE_DLG_WIDTH, 11, REPLACE_DLG_HEIGHT, N_("&Backwards"), 0, 0,
1113 0, 0, NULL},
1114 {quick_checkbox, 4, REPLACE_DLG_WIDTH, 10, REPLACE_DLG_HEIGHT, N_("&Regular expression"), 0, 0,
1115 0, 0, NULL},
1116 {quick_checkbox, 4, REPLACE_DLG_WIDTH, 9, REPLACE_DLG_HEIGHT, N_("&Whole words only"), 0, 0,
1117 0, 0, NULL},
1118 {quick_checkbox, 4, REPLACE_DLG_WIDTH, 8, REPLACE_DLG_HEIGHT, N_("case &Sensitive"), 0, 0,
1119 0, 0, NULL},
1120 {quick_input, 3, REPLACE_DLG_WIDTH, 7, REPLACE_DLG_HEIGHT, "", 52, 0, 0,
1121 0, "edit-argord"},
1122 {quick_label, 2, REPLACE_DLG_WIDTH, 6, REPLACE_DLG_HEIGHT, N_(" Enter replacement argument order eg. 3,2,1,4 "), 0, 0,
1123 0, 0, 0},
1124 {quick_input, 3, REPLACE_DLG_WIDTH, 5, REPLACE_DLG_HEIGHT, "", 52, 0, 0,
1125 0, "edit-replace"},
1126 {quick_label, 2, REPLACE_DLG_WIDTH, 4, REPLACE_DLG_HEIGHT, N_(" Enter replacement string:"), 0, 0, 0,
1127 0, 0},
1128 {quick_input, 3, REPLACE_DLG_WIDTH, 3, REPLACE_DLG_HEIGHT, "", 52, 0, 0,
1129 0, "edit-search"},
1130 {quick_label, 2, REPLACE_DLG_WIDTH, 2, REPLACE_DLG_HEIGHT, N_(" Enter search string:"), 0, 0, 0,
1131 0, 0},
1132 {0}};
1133
1134 quick_widgets[2].result = &treplace_scanf;
1135 quick_widgets[3].result = &treplace_all;
1136 quick_widgets[4].result = &treplace_prompt;
1137 quick_widgets[5].result = &treplace_backwards;
1138 quick_widgets[6].result = &treplace_regexp;
1139 quick_widgets[7].result = &treplace_whole;
1140 quick_widgets[8].result = &treplace_case;
1141 quick_widgets[9].str_result = arg_order;
1142 quick_widgets[9].text = *arg_order;
1143 quick_widgets[11].str_result = replace_text;
1144 quick_widgets[11].text = *replace_text;
1145 quick_widgets[13].str_result = search_text;
1146 quick_widgets[13].text = *search_text;
1147 {
1148 QuickDialog Quick_input =
1149 {REPLACE_DLG_WIDTH, REPLACE_DLG_HEIGHT, -1, 0, N_(" Replace "),
1150 "[Input Line Keys]", 0 /*quick_widgets */ };
1151
1152 Quick_input.widgets = quick_widgets;
1153
1154 if (quick_dialog (&Quick_input) != B_CANCEL) {
1155 replace_scanf = treplace_scanf;
1156 replace_backwards = treplace_backwards;
1157 replace_regexp = treplace_regexp;
1158 replace_all = treplace_all;
1159 replace_prompt = treplace_prompt;
1160 replace_whole = treplace_whole;
1161 replace_case = treplace_case;
1162 return;
1163 } else {
1164 *arg_order = NULL;
1165 *replace_text = NULL;
1166 *search_text = NULL;
1167 return;
1168 }
1169 }
1170 }
1171
1172
1173 static void
1174 edit_search_dialog (WEdit * edit, char **search_text)
1175 {
1176 int treplace_scanf = replace_scanf;
1177 int treplace_regexp = replace_regexp;
1178 int treplace_whole = replace_whole;
1179 int treplace_case = replace_case;
1180 int treplace_backwards = replace_backwards;
1181
1182 QuickWidget quick_widgets[] =
1183 {
1184 {quick_button, 6, 10, 7, SEARCH_DLG_HEIGHT, N_("&Cancel"), 0, B_CANCEL, 0,
1185 0, NULL},
1186 {quick_button, 2, 10, 7, SEARCH_DLG_HEIGHT, N_("&OK"), 0, B_ENTER, 0,
1187 0, NULL},
1188 {quick_checkbox, 33, SEARCH_DLG_WIDTH, 6, SEARCH_DLG_HEIGHT, N_("scanf &Expression"), 0, 0,
1189 0, 0, NULL },
1190 {quick_checkbox, 33, SEARCH_DLG_WIDTH, 5, SEARCH_DLG_HEIGHT, N_("&Backwards"), 0, 0,
1191 0, 0, NULL},
1192 {quick_checkbox, 4, SEARCH_DLG_WIDTH, 6, SEARCH_DLG_HEIGHT, N_("&Regular expression"), 0, 0,
1193 0, 0, NULL},
1194 {quick_checkbox, 4, SEARCH_DLG_WIDTH, 5, SEARCH_DLG_HEIGHT, N_("&Whole words only"), 0, 0,
1195 0, 0, NULL},
1196 {quick_checkbox, 4, SEARCH_DLG_WIDTH, 4, SEARCH_DLG_HEIGHT, N_("case &Sensitive"), 0, 0,
1197 0, 0, NULL},
1198 {quick_input, 3, SEARCH_DLG_WIDTH, 3, SEARCH_DLG_HEIGHT, "", 52, 0, 0,
1199 0, "edit-search"},
1200 {quick_label, 2, SEARCH_DLG_WIDTH, 2, SEARCH_DLG_HEIGHT, N_(" Enter search string:"), 0, 0, 0,
1201 0, 0},
1202 {0}};
1203
1204 quick_widgets[2].result = &treplace_scanf;
1205 quick_widgets[3].result = &treplace_backwards;
1206 quick_widgets[4].result = &treplace_regexp;
1207 quick_widgets[5].result = &treplace_whole;
1208 quick_widgets[6].result = &treplace_case;
1209 quick_widgets[7].str_result = search_text;
1210 quick_widgets[7].text = *search_text;
1211
1212 {
1213 QuickDialog Quick_input =
1214 {SEARCH_DLG_WIDTH, SEARCH_DLG_HEIGHT, -1, 0, N_("Search"),
1215 "[Input Line Keys]", 0 /*quick_widgets */ };
1216
1217 Quick_input.widgets = quick_widgets;
1218
1219 if (quick_dialog (&Quick_input) != B_CANCEL) {
1220 replace_scanf = treplace_scanf;
1221 replace_backwards = treplace_backwards;
1222 replace_regexp = treplace_regexp;
1223 replace_whole = treplace_whole;
1224 replace_case = treplace_case;
1225 } else {
1226 *search_text = NULL;
1227 }
1228 }
1229 }
1230
1231
1232 static long sargs[NUM_REPL_ARGS][256 / sizeof (long)];
1233
1234 #define SCANF_ARGS sargs[0], sargs[1], sargs[2], sargs[3], \
1235 sargs[4], sargs[5], sargs[6], sargs[7], \
1236 sargs[8], sargs[9], sargs[10], sargs[11], \
1237 sargs[12], sargs[13], sargs[14], sargs[15]
1238
1239 #define PRINTF_ARGS sargs[argord[0]], sargs[argord[1]], sargs[argord[2]], sargs[argord[3]], \
1240 sargs[argord[4]], sargs[argord[5]], sargs[argord[6]], sargs[argord[7]], \
1241 sargs[argord[8]], sargs[argord[9]], sargs[argord[10]], sargs[argord[11]], \
1242 sargs[argord[12]], sargs[argord[13]], sargs[argord[14]], sargs[argord[15]]
1243
1244
1245 /* This function is a modification of mc-3.2.10/src/view.c:regexp_view_search() */
1246 /* returns -3 on error in pattern, -1 on not found, found_len = 0 if either */
1247 static int
1248 string_regexp_search (char *pattern, char *string, int len, int match_type, int match_bol, int icase, int *found_len, void *d)
1249 {
1250 static regex_t r;
1251 static char *old_pattern = NULL;
1252 static int old_type, old_icase;
1253 regmatch_t *pmatch;
1254 static regmatch_t s[1];
1255
1256 pmatch = (regmatch_t *) d;
1257 if (!pmatch)
1258 pmatch = s;
1259
1260 if (!old_pattern || strcmp (old_pattern, pattern) || old_type != match_type || old_icase != icase) {
1261 if (old_pattern) {
1262 regfree (&r);
1263 free (old_pattern);
1264 old_pattern = 0;
1265 }
1266 if (regcomp (&r, pattern, REG_EXTENDED | (icase ? REG_ICASE : 0))) {
1267 *found_len = 0;
1268 return -3;
1269 }
1270 old_pattern = (char *) strdup (pattern);
1271 old_type = match_type;
1272 old_icase = icase;
1273 }
1274 if (regexec (&r, string, d ? NUM_REPL_ARGS : 1, pmatch, ((match_bol || match_type != match_normal) ? 0 : REG_NOTBOL)) != 0) {
1275 *found_len = 0;
1276 return -1;
1277 }
1278 *found_len = pmatch[0].rm_eo - pmatch[0].rm_so;
1279 return (pmatch[0].rm_so);
1280 }
1281
1282 /* thanks to Liviu Daia <daia@stoilow.imar.ro> for getting this
1283 (and the above) routines to work properly - paul */
1284
1285 static long
1286 edit_find_string (long start, unsigned char *exp, int *len, long last_byte, int (*get_byte) (void *, long), void *data, int once_only, void *d)
1287 {
1288 long p, q = 0;
1289 long l = strlen ((char *) exp), f = 0;
1290 int n = 0;
1291
1292 for (p = 0; p < l; p++) /* count conversions... */
1293 if (exp[p] == '%')
1294 if (exp[++p] != '%') /* ...except for "%%" */
1295 n++;
1296
1297 if (replace_scanf || replace_regexp) {
1298 int c;
1299 unsigned char *buf;
1300 unsigned char mbuf[MAX_REPL_LEN * 2 + 3];
1301
1302 replace_scanf = (!replace_regexp); /* can't have both */
1303
1304 buf = mbuf;
1305
1306 if (replace_scanf) {
1307 unsigned char e[MAX_REPL_LEN];
1308 if (n >= NUM_REPL_ARGS)
1309 return -3;
1310
1311 if (replace_case) {
1312 for (p = start; p < last_byte && p < start + MAX_REPL_LEN; p++)
1313 buf[p - start] = (*get_byte) (data, p);
1314 } else {
1315 for (p = 0; exp[p] != 0; p++)
1316 exp[p] = my_lower_case (exp[p]);
1317 for (p = start; p < last_byte && p < start + MAX_REPL_LEN; p++) {
1318 c = (*get_byte) (data, p);
1319 buf[p - start] = my_lower_case (c);
1320 }
1321 }
1322
1323 buf[(q = p - start)] = 0;
1324 strcpy ((char *) e, (char *) exp);
1325 strcat ((char *) e, "%n");
1326 exp = e;
1327
1328 while (q) {
1329 *((int *) sargs[n]) = 0; /* --> here was the problem - now fixed: good */
1330 if (n == sscanf ((char *) buf, (char *) exp, SCANF_ARGS)) {
1331 if (*((int *) sargs[n])) {
1332 *len = *((int *) sargs[n]);
1333 return start;
1334 }
1335 }
1336 if (once_only)
1337 return -2;
1338 if (q + start < last_byte) {
1339 if (replace_case) {
1340 buf[q] = (*get_byte) (data, q + start);
1341 } else {
1342 c = (*get_byte) (data, q + start);
1343 buf[q] = my_lower_case (c);
1344 }
1345 q++;
1346 }
1347 buf[q] = 0;
1348 start++;
1349 buf++; /* move the window along */
1350 if (buf == mbuf + MAX_REPL_LEN) { /* the window is about to go past the end of array, so... */
1351 memmove (mbuf, buf, strlen ((char *) buf) + 1); /* reset it */
1352 buf = mbuf;
1353 }
1354 q--;
1355 }
1356 } else { /* regexp matching */
1357 long offset = 0;
1358 int found_start, match_bol, move_win = 0;
1359
1360 while (start + offset < last_byte) {
1361 match_bol = (offset == 0 || (*get_byte) (data, start + offset - 1) == '\n');
1362 if (!move_win) {
1363 p = start + offset;
1364 q = 0;
1365 }
1366 for (; p < last_byte && q < MAX_REPL_LEN; p++, q++) {
1367 mbuf[q] = (*get_byte) (data, p);
1368 if (mbuf[q] == '\n')
1369 break;
1370 }
1371 q++;
1372 offset += q;
1373 mbuf[q] = 0;
1374
1375 buf = mbuf;
1376 while (q) {
1377 found_start = string_regexp_search ((char *) exp, (char *) buf, q, match_normal, match_bol, !replace_case, len, d);
1378
1379 if (found_start <= -2) { /* regcomp/regexec error */
1380 *len = 0;
1381 return -3;
1382 }
1383 else if (found_start == -1) /* not found: try next line */
1384 break;
1385 else if (*len == 0) { /* null pattern: try again at next character */
1386 q--;
1387 buf++;
1388 match_bol = 0;
1389 continue;
1390 }
1391 else /* found */
1392 return (start + offset - q + found_start);
1393 }
1394 if (once_only)
1395 return -2;
1396
1397 if (buf[q - 1] != '\n') { /* incomplete line: try to recover */
1398 buf = mbuf + MAX_REPL_LEN / 2;
1399 q = strlen ((char *) buf);
1400 memmove (mbuf, buf, q);
1401 p = start + q;
1402 move_win = 1;
1403 }
1404 else
1405 move_win = 0;
1406 }
1407 }
1408 } else {
1409 *len = strlen ((char *) exp);
1410 if (replace_case) {
1411 for (p = start; p <= last_byte - l; p++) {
1412 if ((*get_byte) (data, p) == (unsigned char)exp[0]) { /* check if first char matches */
1413 for (f = 0, q = 0; q < l && f < 1; q++)
1414 if ((*get_byte) (data, q + p) != (unsigned char)exp[q])
1415 f = 1;
1416 if (f == 0)
1417 return p;
1418 }
1419 if (once_only)
1420 return -2;
1421 }
1422 } else {
1423 for (p = 0; exp[p] != 0; p++)
1424 exp[p] = my_lower_case (exp[p]);
1425
1426 for (p = start; p <= last_byte - l; p++) {
1427 if (my_lower_case ((*get_byte) (data, p)) == (unsigned char)exp[0]) {
1428 for (f = 0, q = 0; q < l && f < 1; q++)
1429 if (my_lower_case ((*get_byte) (data, q + p)) != (unsigned char)exp[q])
1430 f = 1;
1431 if (f == 0)
1432 return p;
1433 }
1434 if (once_only)
1435 return -2;
1436 }
1437 }
1438 }
1439 return -2;
1440 }
1441
1442
1443 static long
1444 edit_find_forwards (long search_start, unsigned char *exp, int *len, long last_byte, int (*get_byte) (void *, long), void *data, int once_only, void *d)
1445 { /*front end to find_string to check for
1446 whole words */
1447 long p;
1448 p = search_start;
1449
1450 while ((p = edit_find_string (p, exp, len, last_byte, get_byte, data, once_only, d)) >= 0) {
1451 if (replace_whole) {
1452 /*If the bordering chars are not in option_whole_chars_search then word is whole */
1453 if (!strcasechr (option_whole_chars_search, (*get_byte) (data, p - 1))
1454 && !strcasechr (option_whole_chars_search, (*get_byte) (data, p + *len)))
1455 return p;
1456 if (once_only)
1457 return -2;
1458 } else
1459 return p;
1460 if (once_only)
1461 break;
1462 p++; /*not a whole word so continue search. */
1463 }
1464 return p;
1465 }
1466
1467 static long
1468 edit_find (long search_start, unsigned char *exp, int *len, long last_byte, int (*get_byte) (void *, long), void *data, void *d)
1469 {
1470 long p;
1471 if (replace_backwards) {
1472 while (search_start >= 0) {
1473 p = edit_find_forwards (search_start, exp, len, last_byte, get_byte, data, 1, d);
1474 if (p == search_start)
1475 return p;
1476 search_start--;
1477 }
1478 } else {
1479 return edit_find_forwards (search_start, exp, len, last_byte, get_byte, data, 0, d);
1480 }
1481 return -2;
1482 }
1483
1484 #define is_digit(x) ((x) >= '0' && (x) <= '9')
1485
1486 #define snprintf(v) { \
1487 *p1++ = *p++; \
1488 *p1++ = '%'; \
1489 *p1++ = 'n'; \
1490 *p1 = '\0'; \
1491 sprintf(s,q1,v,&n); \
1492 s += n; \
1493 }
1494
1495 /* this function uses the sprintf command to do a vprintf */
1496 /* it takes pointers to arguments instead of the arguments themselves */
1497 static int sprintf_p (char *str, const char *fmt,...)
1498 __attribute__ ((format (printf, 2, 3)));
1499
1500 static int sprintf_p (char *str, const char *fmt,...)
1501 {
1502 va_list ap;
1503 int n;
1504 char *q, *p, *s = str;
1505 char q1[32];
1506 char *p1;
1507
1508 va_start (ap, fmt);
1509 p = q = (char *) fmt;
1510
1511 while ((p = strchr (p, '%'))) {
1512 n = p - q;
1513 strncpy (s, q, n); /* copy stuff between format specifiers */
1514 s += n;
1515 *s = 0;
1516 q = p;
1517 p1 = q1;
1518 *p1++ = *p++;
1519 if (*p == '%') {
1520 p++;
1521 *s++ = '%';
1522 q = p;
1523 continue;
1524 }
1525 if (*p == 'n') {
1526 p++;
1527 /* do nothing */
1528 q = p;
1529 continue;
1530 }
1531 if (*p == '#')
1532 *p1++ = *p++;
1533 if (*p == '0')
1534 *p1++ = *p++;
1535 if (*p == '-')
1536 *p1++ = *p++;
1537 if (*p == '+')
1538 *p1++ = *p++;
1539 if (*p == '*') {
1540 p++;
1541 strcpy (p1, MY_itoa (*va_arg (ap, int *))); /* replace field width with a number */
1542 p1 += strlen (p1);
1543 } else {
1544 while (is_digit (*p))
1545 *p1++ = *p++;
1546 }
1547 if (*p == '.')
1548 *p1++ = *p++;
1549 if (*p == '*') {
1550 p++;
1551 strcpy (p1, MY_itoa (*va_arg (ap, int *))); /* replace precision with a number */
1552 p1 += strlen (p1);
1553 } else {
1554 while (is_digit (*p))
1555 *p1++ = *p++;
1556 }
1557 /* flags done, now get argument */
1558 if (*p == 's') {
1559 snprintf (va_arg (ap, char *));
1560 } else if (*p == 'h') {
1561 if (strchr ("diouxX", *p))
1562 snprintf (*va_arg (ap, short *));
1563 } else if (*p == 'l') {
1564 *p1++ = *p++;
1565 if (strchr ("diouxX", *p))
1566 snprintf (*va_arg (ap, long *));
1567 } else if (strchr ("cdiouxX", *p)) {
1568 snprintf (*va_arg (ap, int *));
1569 } else if (*p == 'L') {
1570 *p1++ = *p++;
1571 if (strchr ("EefgG", *p))
1572 snprintf (*va_arg (ap, double *)); /* should be long double */
1573 } else if (strchr ("EefgG", *p)) {
1574 snprintf (*va_arg (ap, double *));
1575 } else if (strchr ("DOU", *p)) {
1576 snprintf (*va_arg (ap, long *));
1577 } else if (*p == 'p') {
1578 snprintf (*va_arg (ap, void **));
1579 }
1580 q = p;
1581 }
1582 va_end (ap);
1583 sprintf (s, q); /* print trailing leftover */
1584 return s - str + strlen (s);
1585 }
1586
1587 static void regexp_error (WEdit *edit)
1588 {
1589 /* "Error: Syntax error in regular expression, or scanf expression contained too many %'s */
1590 edit_error_dialog (_("Error"), _(" Invalid regular expression, or scanf expression with to many conversions "));
1591 }
1592
1593 /* call with edit = 0 before shutdown to close memory leaks */
1594 void
1595 edit_replace_cmd (WEdit *edit, int again)
1596 {
1597 static regmatch_t pmatch[NUM_REPL_ARGS];
1598 static char *old1 = NULL;
1599 static char *old2 = NULL;
1600 static char *old3 = NULL;
1601 char *exp1 = "";
1602 char *exp2 = "";
1603 char *exp3 = "";
1604 int replace_yes;
1605 int replace_continue;
1606 int treplace_prompt = 0;
1607 int i = 0;
1608 long times_replaced = 0, last_search;
1609 int argord[NUM_REPL_ARGS];
1610
1611 if (!edit) {
1612 if (old1) {
1613 g_free (old1);
1614 old1 = 0;
1615 }
1616 if (old2) {
1617 g_free (old2);
1618 old2 = 0;
1619 }
1620 if (old3) {
1621 g_free (old3);
1622 old3 = 0;
1623 }
1624 return;
1625 }
1626 last_search = edit->last_byte;
1627
1628 edit->force |= REDRAW_COMPLETELY;
1629
1630 exp1 = old1 ? old1 : exp1;
1631 exp2 = old2 ? old2 : exp2;
1632 exp3 = old3 ? old3 : exp3;
1633
1634 if (again) {
1635 if (!old1 || !old2)
1636 return;
1637 exp1 = g_strdup (old1);
1638 exp2 = g_strdup (old2);
1639 exp3 = g_strdup (old3);
1640 } else {
1641 edit_push_action (edit, KEY_PRESS + edit->start_display);
1642
1643 convert_to_display (exp1);
1644 convert_to_display (exp2);
1645
1646 edit_replace_dialog (edit, &exp1, &exp2, &exp3);
1647
1648 convert_from_input (exp1);
1649 convert_from_input (exp2);
1650
1651 treplace_prompt = replace_prompt;
1652 }
1653
1654 if (!exp1 || !*exp1) {
1655 edit->force = REDRAW_COMPLETELY;
1656 g_free (exp1);
1657 g_free (exp2);
1658 g_free (exp3);
1659 return;
1660 }
1661 g_free (old1);
1662 g_free (old2);
1663 g_free (old3);
1664 old1 = g_strdup (exp1);
1665 old2 = g_strdup (exp2);
1666 old3 = g_strdup (exp3);
1667
1668 {
1669 char *s;
1670 int ord;
1671 while ((s = strchr (exp3, ' ')))
1672 memmove (s, s + 1, strlen (s));
1673 s = exp3;
1674 for (i = 0; i < NUM_REPL_ARGS; i++) {
1675 if (s != (char *) 1 && *s) {
1676 ord = atoi (s);
1677 if ((ord > 0) && (ord < NUM_REPL_ARGS))
1678 argord[i] = ord - 1;
1679 else
1680 argord[i] = i;
1681 s = strchr (s, ',') + 1;
1682 } else
1683 argord[i] = i;
1684 }
1685 }
1686
1687 replace_continue = replace_all;
1688
1689 if (edit->found_len && edit->search_start == edit->found_start + 1
1690 && replace_backwards)
1691 edit->search_start--;
1692
1693 if (edit->found_len && edit->search_start == edit->found_start - 1
1694 && !replace_backwards)
1695 edit->search_start++;
1696
1697 do {
1698 int len = 0;
1699 long new_start;
1700 new_start =
1701 edit_find (edit->search_start, (unsigned char *) exp1, &len,
1702 last_search, (int (*)(void *, long)) edit_get_byte,
1703 (void *) edit, pmatch);
1704 if (new_start == -3) {
1705 regexp_error (edit);
1706 break;
1707 }
1708 edit->search_start = new_start;
1709 /*returns negative on not found or error in pattern */
1710
1711 if (edit->search_start >= 0) {
1712 edit->found_start = edit->search_start;
1713 i = edit->found_len = len;
1714
1715 edit_cursor_move (edit, edit->search_start - edit->curs1);
1716 edit_scroll_screen_over_cursor (edit);
1717
1718 replace_yes = 1;
1719
1720 if (treplace_prompt) {
1721 int l;
1722 l = edit->curs_row - edit->num_widget_lines / 3;
1723 if (l > 0)
1724 edit_scroll_downward (edit, l);
1725 if (l < 0)
1726 edit_scroll_upward (edit, -l);
1727
1728 edit_scroll_screen_over_cursor (edit);
1729 edit->force |= REDRAW_PAGE;
1730 edit_render_keypress (edit);
1731
1732 /*so that undo stops at each query */
1733 edit_push_key_press (edit);
1734
1735 switch (edit_replace_prompt (edit, exp2, /* and prompt 2/3 down */
1736 (edit->num_widget_columns -
1737 CONFIRM_DLG_WIDTH) / 2,
1738 edit->num_widget_lines * 2 /
1739 3)) {
1740 case B_ENTER:
1741 break;
1742 case B_SKIP_REPLACE:
1743 replace_yes = 0;
1744 break;
1745 case B_REPLACE_ALL:
1746 treplace_prompt = 0;
1747 replace_continue = 1;
1748 break;
1749 case B_REPLACE_ONE:
1750 replace_continue = 0;
1751 break;
1752 case B_CANCEL:
1753 replace_yes = 0;
1754 replace_continue = 0;
1755 break;
1756 }
1757 }
1758 if (replace_yes) { /* delete then insert new */
1759 if (replace_scanf || replace_regexp) {
1760 char repl_str[MAX_REPL_LEN + 2];
1761
1762 /* we need to fill in sargs just like with scanf */
1763 if (replace_regexp) {
1764 int k, j;
1765 for (k = 1;
1766 k < NUM_REPL_ARGS && pmatch[k].rm_eo >= 0;
1767 k++) {
1768 unsigned char *t;
1769 t = (unsigned char *) &sargs[k - 1][0];
1770 for (j = 0;
1771 j < pmatch[k].rm_eo - pmatch[k].rm_so
1772 && j < 255; j++, t++)
1773 *t = (unsigned char) edit_get_byte (edit,
1774 edit->
1775 search_start
1776 -
1777 pmatch
1778 [0].
1779 rm_so +
1780 pmatch
1781 [k].
1782 rm_so +
1783 j);
1784 *t = '\0';
1785 }
1786 for (; k <= NUM_REPL_ARGS; k++)
1787 sargs[k - 1][0] = 0;
1788 }
1789 if (sprintf_p (repl_str, exp2, PRINTF_ARGS) >= 0) {
1790 times_replaced++;
1791 while (i--)
1792 edit_delete (edit);
1793 while (repl_str[++i])
1794 edit_insert (edit, repl_str[i]);
1795 } else {
1796 edit_error_dialog (_(" Replace "),
1797 _
1798 (" Error in replacement format string. "));
1799 replace_continue = 0;
1800 }
1801 } else {
1802 times_replaced++;
1803 while (i--)
1804 edit_delete (edit);
1805 while (exp2[++i])
1806 edit_insert (edit, exp2[i]);
1807 }
1808 edit->found_len = i;
1809 }
1810 /* so that we don't find the same string again */
1811 if (replace_backwards) {
1812 last_search = edit->search_start;
1813 edit->search_start--;
1814 } else {
1815 edit->search_start += i;
1816 last_search = edit->last_byte;
1817 }
1818 edit_scroll_screen_over_cursor (edit);
1819 } else {
1820 char *msg = _(" Replace ");
1821 /* try and find from right here for next search */
1822 edit->search_start = edit->curs1;
1823 edit_update_curs_col (edit);
1824
1825 edit->force |= REDRAW_PAGE;
1826 edit_render_keypress (edit);
1827 if (times_replaced) {
1828 message (0, msg, _(" %ld replacements made. "),
1829 times_replaced);
1830 } else
1831 edit_message_dialog (msg, _(" Search string not found "));
1832 replace_continue = 0;
1833 }
1834 } while (replace_continue);
1835
1836 g_free (exp1);
1837 g_free (exp2);
1838 g_free (exp3);
1839 edit->force = REDRAW_COMPLETELY;
1840 edit_scroll_screen_over_cursor (edit);
1841 }
1842
1843
1844
1845
1846 void edit_search_cmd (WEdit * edit, int again)
1847 {
1848 static char *old = NULL;
1849 char *exp = "";
1850
1851 if (!edit) {
1852 if (old) {
1853 g_free (old);
1854 old = 0;
1855 }
1856 return;
1857 }
1858 exp = old ? old : exp;
1859 if (again) { /*ctrl-hotkey for search again. */
1860 if (!old)
1861 return;
1862 exp = g_strdup (old);
1863 } else {
1864
1865 #ifdef HAVE_CHARSET
1866 if (exp && *exp)
1867 convert_to_display (exp);
1868 #endif /* HAVE_CHARSET */
1869
1870 edit_search_dialog (edit, &exp);
1871
1872 #ifdef HAVE_CHARSET
1873 if (exp && *exp)
1874 convert_from_input (exp);
1875 #endif /* HAVE_CHARSET */
1876
1877 edit_push_action (edit, KEY_PRESS + edit->start_display);
1878 }
1879
1880 if (exp) {
1881 if (*exp) {
1882 int len = 0;
1883 if (old)
1884 g_free (old);
1885 old = g_strdup (exp);
1886
1887 if (search_create_bookmark) {
1888 int found = 0, books = 0;
1889 int l = 0, l_last = -1;
1890 long p, q = 0;
1891 for (;;) {
1892 p = edit_find (q, (unsigned char *) exp, &len, edit->last_byte,
1893 (int (*)(void *, long)) edit_get_byte, (void *) edit, 0);
1894 if (p < 0)
1895 break;
1896 found++;
1897 l += edit_count_lines (edit, q, p);
1898 if (l != l_last) {
1899 book_mark_insert (edit, l, BOOK_MARK_FOUND_COLOR);
1900 books++;
1901 }
1902 l_last = l;
1903 q = p + 1;
1904 }
1905 if (found) {
1906 /* in response to number of bookmarks added because of string being found %d times */
1907 message (0, _("Search"), _(" %d finds made, %d bookmarks added "), found, books);
1908 } else {
1909 edit_error_dialog (_ ("Search"), _ (" Search string not found "));
1910 }
1911 } else {
1912
1913 if (edit->found_len && edit->search_start == edit->found_start + 1 && replace_backwards)
1914 edit->search_start--;
1915
1916 if (edit->found_len && edit->search_start == edit->found_start - 1 && !replace_backwards)
1917 edit->search_start++;
1918
1919 edit->search_start = edit_find (edit->search_start, (unsigned char *) exp, &len, edit->last_byte,
1920 (int (*)(void *, long)) edit_get_byte, (void *) edit, 0);
1921
1922 if (edit->search_start >= 0) {
1923 edit->found_start = edit->search_start;
1924 edit->found_len = len;
1925
1926 edit_cursor_move (edit, edit->search_start - edit->curs1);
1927 edit_scroll_screen_over_cursor (edit);
1928 if (replace_backwards)
1929 edit->search_start--;
1930 else
1931 edit->search_start++;
1932 } else if (edit->search_start == -3) {
1933 edit->search_start = edit->curs1;
1934 regexp_error (edit);
1935 } else {
1936 edit->search_start = edit->curs1;
1937 edit_error_dialog (_ ("Search"), _ (" Search string not found "));
1938 }
1939 }
1940 }
1941 g_free (exp);
1942 }
1943 edit->force |= REDRAW_COMPLETELY;
1944 edit_scroll_screen_over_cursor (edit);
1945 }
1946
1947
1948 /* Real edit only */
1949 void edit_quit_cmd (WEdit * edit)
1950 {
1951 edit_push_action (edit, KEY_PRESS + edit->start_display);
1952
1953 edit->force |= REDRAW_COMPLETELY;
1954 if (edit->modified) {
1955 switch (edit_query_dialog3 (_ ("Quit"), _ (" File was modified, Save with exit? "), _ ("Cancel quit"), _ ("&Yes"), _ ("&No"))) {
1956 case 1:
1957 edit_push_markers (edit);
1958 edit_set_markers (edit, 0, 0, 0, 0);
1959 if (!edit_save_cmd (edit))
1960 return;
1961 break;
1962 case 2:
1963 if (edit->delete_file)
1964 unlink (catstrs (edit->dir, edit->filename, 0));
1965 break;
1966 case 0:
1967 case -1:
1968 return;
1969 }
1970 }
1971 else if (edit->delete_file)
1972 unlink (catstrs (edit->dir, edit->filename, 0));
1973 dlg_stop (edit->widget.parent);
1974 }
1975
1976 #define TEMP_BUF_LEN 1024
1977
1978 /* returns a null terminated length of text. Result must be free'd */
1979 unsigned char *edit_get_block (WEdit * edit, long start, long finish, int *l)
1980 {
1981 unsigned char *s, *r;
1982 r = s = malloc (finish - start + 1);
1983 if (column_highlighting) {
1984 *l = 0;
1985 while (start < finish) { /* copy from buffer, excluding chars that are out of the column 'margins' */
1986 int c, x;
1987 x = edit_move_forward3 (edit, edit_bol (edit, start), 0, start);
1988 c = edit_get_byte (edit, start);
1989 if ((x >= edit->column1 && x < edit->column2)
1990 || (x >= edit->column2 && x < edit->column1) || c == '\n') {
1991 *s++ = c;
1992 (*l)++;
1993 }
1994 start++;
1995 }
1996 } else {
1997 *l = finish - start;
1998 while (start < finish)
1999 *s++ = edit_get_byte (edit, start++);
2000 }
2001 *s = 0;
2002 return r;
2003 }
2004
2005 /* save block, returns 1 on success */
2006 int
2007 edit_save_block (WEdit * edit, const char *filename, long start,
2008 long finish)
2009 {
2010 int len, file;
2011
2012 if ((file =
2013 mc_open (filename, O_CREAT | O_WRONLY | O_TRUNC,
2014 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH | O_BINARY)) == -1)
2015 return 0;
2016
2017 if (column_highlighting) {
2018 unsigned char *block, *p;
2019 int r;
2020 p = block = edit_get_block (edit, start, finish, &len);
2021 while (len) {
2022 r = mc_write (file, p, len);
2023 if (r < 0)
2024 break;
2025 p += r;
2026 len -= r;
2027 }
2028 free (block);
2029 } else {
2030 unsigned char *buf;
2031 int i = start, end;
2032 len = finish - start;
2033 buf = malloc (TEMP_BUF_LEN);
2034 while (start != finish) {
2035 end = min (finish, start + TEMP_BUF_LEN);
2036 for (; i < end; i++)
2037 buf[i - start] = edit_get_byte (edit, i);
2038 len -= mc_write (file, (char *) buf, end - start);
2039 start = end;
2040 }
2041 free (buf);
2042 }
2043 mc_close (file);
2044 if (len)
2045 return 0;
2046 return 1;
2047 }
2048
2049 /* copies a block to clipboard file */
2050 static int edit_save_block_to_clip_file (WEdit * edit, long start, long finish)
2051 {
2052 return edit_save_block (edit, catstrs (home_dir, CLIP_FILE, 0), start, finish);
2053 }
2054
2055
2056 void edit_paste_from_history (WEdit *edit)
2057 {
2058 }
2059
2060 int edit_copy_to_X_buf_cmd (WEdit * edit)
2061 {
2062 long start_mark, end_mark;
2063 if (eval_marks (edit, &start_mark, &end_mark))
2064 return 0;
2065 if (!edit_save_block_to_clip_file (edit, start_mark, end_mark)) {
2066 edit_error_dialog (_(" Copy to clipboard "), get_sys_error (_(" Unable to save to file. ")));
2067 return 1;
2068 }
2069 edit_mark_cmd (edit, 1);
2070 return 0;
2071 }
2072
2073 int edit_cut_to_X_buf_cmd (WEdit * edit)
2074 {
2075 long start_mark, end_mark;
2076 if (eval_marks (edit, &start_mark, &end_mark))
2077 return 0;
2078 if (!edit_save_block_to_clip_file (edit, start_mark, end_mark)) {
2079 edit_error_dialog (_(" Cut to clipboard "), _(" Unable to save to file. "));
2080 return 1;
2081 }
2082 edit_block_delete_cmd (edit);
2083 edit_mark_cmd (edit, 1);
2084 return 0;
2085 }
2086
2087 void edit_paste_from_X_buf_cmd (WEdit * edit)
2088 {
2089 edit_insert_file (edit, catstrs (home_dir, CLIP_FILE, 0));
2090 }
2091
2092
2093 void edit_goto_cmd (WEdit *edit)
2094 {
2095 char *f;
2096 static int l = 0;
2097 char s[12];
2098 sprintf (s, "%d", l);
2099 f = input_dialog (_(" Goto line "), _(" Enter line: "), l ? s : "");
2100 if (f) {
2101 if (*f) {
2102 l = atoi (f);
2103 edit_move_display (edit, l - edit->num_widget_lines / 2 - 1);
2104 edit_move_to_line (edit, l - 1);
2105 edit->force |= REDRAW_COMPLETELY;
2106 }
2107 g_free (f);
2108 }
2109 }
2110
2111 /*returns 1 on success */
2112 int edit_save_block_cmd (WEdit * edit)
2113 {
2114 long start_mark, end_mark;
2115 char *exp;
2116 if (eval_marks (edit, &start_mark, &end_mark))
2117 return 1;
2118 exp = edit_get_save_file (edit->dir, catstrs (home_dir, CLIP_FILE, 0), _ (" Save Block "));
2119 edit_push_action (edit, KEY_PRESS + edit->start_display);
2120 if (exp) {
2121 if (!*exp) {
2122 g_free (exp);
2123 return 0;
2124 } else {
2125 if (edit_save_block (edit, exp, start_mark, end_mark)) {
2126 g_free (exp);
2127 edit->force |= REDRAW_COMPLETELY;
2128 return 1;
2129 } else {
2130 g_free (exp);
2131 edit_error_dialog (_ (" Save Block "), get_sys_error (_ (" Error trying to save file. ")));
2132 }
2133 }
2134 }
2135 edit->force |= REDRAW_COMPLETELY;
2136 return 0;
2137 }
2138
2139
2140 /* returns 1 on success */
2141 int
2142 edit_insert_file_cmd (WEdit *edit)
2143 {
2144 char *exp =
2145 edit_get_load_file (edit->dir, catstrs (home_dir, CLIP_FILE, 0),
2146 _(" Insert File "));
2147 edit_push_action (edit, KEY_PRESS + edit->start_display);
2148 if (exp) {
2149 if (!*exp) {
2150 g_free (exp);
2151 return 0;
2152 } else {
2153 if (edit_insert_file (edit, exp)) {
2154 g_free (exp);
2155 edit->force |= REDRAW_COMPLETELY;
2156 return 1;
2157 } else {
2158 g_free (exp);
2159 edit_error_dialog (_(" Insert File "),
2160 get_sys_error (_
2161 (" Error trying to insert file. ")));
2162 }
2163 }
2164 }
2165 edit->force |= REDRAW_COMPLETELY;
2166 return 0;
2167 }
2168
2169 /* sorts a block, returns -1 on system fail, 1 on cancel and 0 on success */
2170 int edit_sort_cmd (WEdit * edit)
2171 {
2172 static char *old = 0;
2173 char *exp;
2174 long start_mark, end_mark;
2175 int e;
2176
2177 if (eval_marks (edit, &start_mark, &end_mark)) {
2178 edit_error_dialog (_(" Sort block "), _(" You must first highlight a block of text. "));
2179 return 0;
2180 }
2181 edit_save_block (edit, catstrs (home_dir, BLOCK_FILE, 0), start_mark, end_mark);
2182
2183 exp = old ? old : "";
2184
2185 exp = input_dialog (_(" Run Sort "),
2186 _(" Enter sort options (see manpage) separated by whitespace: "), exp);
2187
2188 if (!exp)
2189 return 1;
2190 if (old)
2191 g_free (old);
2192 old = exp;
2193
2194 e = system (catstrs (" sort ", exp, " ", home_dir, BLOCK_FILE, " > ", home_dir, TEMP_FILE, 0));
2195 if (e) {
2196 if (e == -1 || e == 127) {
2197 edit_error_dialog (_(" Sort "),
2198 get_sys_error (_(" Error trying to execute sort command ")));
2199 } else {
2200 char q[8];
2201 sprintf (q, "%d ", e);
2202 edit_error_dialog (_(" Sort "),
2203 catstrs (_(" Sort returned non-zero: "), q, 0));
2204 }
2205 return -1;
2206 }
2207
2208 edit->force |= REDRAW_COMPLETELY;
2209
2210 if (edit_block_delete_cmd (edit))
2211 return 1;
2212 edit_insert_file (edit, catstrs (home_dir, TEMP_FILE, 0));
2213 return 0;
2214 }
2215
2216 /* if block is 1, a block must be highlighted and the shell command
2217 processes it. If block is 0 the shell command is a straight system
2218 command, that just produces some output which is to be inserted */
2219 void
2220 edit_block_process_cmd (WEdit * edit, const char *shell_cmd, int block)
2221 {
2222 long start_mark, end_mark;
2223 char buf[BUFSIZ];
2224 FILE *script_home = NULL;
2225 FILE *script_src = NULL;
2226 FILE *block_file = NULL;
2227 char *o = NULL;
2228 char *h = NULL;
2229 char *b = NULL;
2230
2231 o = catstrs (mc_home, shell_cmd, 0); /* original source script */
2232 h = catstrs (home_dir, EDIT_DIR, shell_cmd, 0); /* home script */
2233 b = catstrs (home_dir, BLOCK_FILE, 0); /* block file */
2234
2235 if (!(script_home = fopen (h, "r"))) {
2236 if (!(script_home = fopen (h, "w"))) {
2237 edit_error_dialog ("", get_sys_error (catstrs
2238 (_
2239 ("Error creating script:"),
2240 h, 0)));
2241 return;
2242 }
2243 if (!(script_src = fopen (o, "r"))) {
2244 fclose (script_home);
2245 unlink (h);
2246 edit_error_dialog ("", get_sys_error (catstrs
2247 (_("Error reading script:"),
2248 o, 0)));
2249 return;
2250 }
2251 while (fgets (buf, sizeof (buf), script_src))
2252 fputs (buf, script_home);
2253 if (fclose (script_home)) {
2254 edit_error_dialog ("", get_sys_error (catstrs
2255 (_
2256 ("Error closing script:"),
2257 h, 0)));
2258 return;
2259 }
2260 chmod (h, 0700);
2261 edit_error_dialog ("", get_sys_error (catstrs
2262 (_("Script created:"), h,
2263 0)));
2264 }
2265
2266 open_error_pipe ();
2267
2268 if (block) { /* for marked block run indent formatter */
2269 if (eval_marks (edit, &start_mark, &end_mark)) {
2270 edit_error_dialog (_("Process block"),
2271 _
2272 (" You must first highlight a block of text. "));
2273 return;
2274 }
2275 edit_save_block (edit, b, start_mark, end_mark);
2276
2277 /*
2278 * Run script.
2279 * Initial space is to avoid polluting bash history.
2280 * Arguments:
2281 * $1 - name of the edited file (to check its extention etc).
2282 * $2 - file containing the current block.
2283 * $3 - file where error messages should be put
2284 * (for compatibility with old scripts).
2285 */
2286 system (catstrs (" ", home_dir, EDIT_DIR, shell_cmd, " ",
2287 edit->filename, " ", home_dir, BLOCK_FILE,
2288 " /dev/null", NULL));
2289
2290 } else {
2291 /*
2292 * No block selected, just execute the command for the file.
2293 * Arguments:
2294 * $1 - name of the edited file.
2295 */
2296 system (catstrs (" ", home_dir, EDIT_DIR, shell_cmd, " ",
2297 edit->filename, NULL));
2298 }
2299
2300 close_error_pipe (0, 0);
2301
2302 edit_refresh_cmd (edit);
2303 edit->force |= REDRAW_COMPLETELY;
2304
2305 /* insert result block */
2306 if (block) {
2307 if (edit_block_delete_cmd (edit))
2308 return;
2309 edit_insert_file (edit, b);
2310 if ((block_file = fopen (b, "w")))
2311 fclose (block_file);
2312 return;
2313 }
2314
2315 return;
2316 }
2317
2318 /* prints at the cursor */
2319 /* returns the number of chars printed */
2320 int edit_print_string (WEdit * e, const char *s)
2321 {
2322 int i = 0;
2323 while (s[i])
2324 edit_execute_cmd (e, -1, (unsigned char) s[i++]);
2325 e->force |= REDRAW_COMPLETELY;
2326 edit_update_screen (e);
2327 return i;
2328 }
2329
2330 int edit_printf (WEdit * e, const char *fmt, ...)
2331 {
2332 int i;
2333 va_list pa;
2334 char s[1024];
2335 va_start (pa, fmt);
2336 g_vsnprintf (s, sizeof (s), fmt, pa);
2337 i = edit_print_string (e, s);
2338 va_end (pa);
2339 return i;
2340 }
2341
2342 /* FIXME: does this function break NT_OS2 ? */
2343
2344 static void pipe_mail (WEdit *edit, char *to, char *subject, char *cc)
2345 {
2346 FILE *p = 0;
2347 char *s;
2348
2349 s = g_strdup_printf ("mail -s \"%s\" -c \"%s\" \"%s\"", subject, cc, to);
2350
2351 if (s) {
2352 p = popen (s, "w");
2353 g_free (s);
2354 }
2355
2356 if (p) {
2357 long i;
2358 for (i = 0; i < edit->last_byte; i++)
2359 fputc (edit_get_byte (edit, i), p);
2360 pclose (p);
2361 }
2362 }
2363
2364 #define MAIL_DLG_HEIGHT 12
2365
2366 void edit_mail_dialog (WEdit * edit)
2367 {
2368 char *tmail_to;
2369 char *tmail_subject;
2370 char *tmail_cc;
2371
2372 static char *mail_cc_last = 0;
2373 static char *mail_subject_last = 0;
2374 static char *mail_to_last = 0;
2375
2376 QuickDialog Quick_input =
2377 {50, MAIL_DLG_HEIGHT, -1, 0, N_(" Mail "),
2378 "[Input Line Keys]", 0};
2379
2380 QuickWidget quick_widgets[] =
2381 {
2382 {quick_button, 6, 10, 9, MAIL_DLG_HEIGHT, N_("&Cancel"), 0, B_CANCEL, 0,
2383 0, NULL},
2384 {quick_button, 2, 10, 9, MAIL_DLG_HEIGHT, N_("&OK"), 0, B_ENTER, 0,
2385 0, NULL},
2386 {quick_input, 3, 50, 8, MAIL_DLG_HEIGHT, "", 44, 0, 0,
2387 0, "mail-dlg-input"},
2388 {quick_label, 2, 50, 7, MAIL_DLG_HEIGHT, N_(" Copies to"), 0, 0, 0,
2389 0, 0},
2390 {quick_input, 3, 50, 6, MAIL_DLG_HEIGHT, "", 44, 0, 0,
2391 0, "mail-dlg-input-2"},
2392 {quick_label, 2, 50, 5, MAIL_DLG_HEIGHT, N_(" Subject"), 0, 0, 0,
2393 0, 0},
2394 {quick_input, 3, 50, 4, MAIL_DLG_HEIGHT, "", 44, 0, 0,
2395 0, "mail-dlg-input-3"},
2396 {quick_label, 2, 50, 3, MAIL_DLG_HEIGHT, N_(" To"), 0, 0, 0,
2397 0, 0},
2398 {quick_label, 2, 50, 2, MAIL_DLG_HEIGHT, N_(" mail -s <subject> -c <cc> <to>"), 0, 0, 0,
2399 0, 0},
2400 {0}};
2401
2402 quick_widgets[2].str_result = &tmail_cc;
2403 quick_widgets[2].text = mail_cc_last ? mail_cc_last : "";
2404 quick_widgets[4].str_result = &tmail_subject;
2405 quick_widgets[4].text = mail_subject_last ? mail_subject_last : "";
2406 quick_widgets[6].str_result = &tmail_to;
2407 quick_widgets[6].text = mail_to_last ? mail_to_last : "";
2408
2409 Quick_input.widgets = quick_widgets;
2410
2411 if (quick_dialog (&Quick_input) != B_CANCEL) {
2412 if (mail_cc_last)
2413 g_free (mail_cc_last);
2414 if (mail_subject_last)
2415 g_free (mail_subject_last);
2416 if (mail_to_last)
2417 g_free (mail_to_last);
2418 mail_cc_last = *(quick_widgets[2].str_result);
2419 mail_subject_last = *(quick_widgets[4].str_result);
2420 mail_to_last = *(quick_widgets[6].str_result);
2421 pipe_mail (edit, mail_to_last, mail_subject_last, mail_cc_last);
2422 }
2423 }
2424
2425
2426 /*******************/
2427 /* Word Completion */
2428 /*******************/
2429
2430
2431 /* find first character of current word */
2432 static int edit_find_word_start (WEdit *edit, long *word_start, int *word_len)
2433 {
2434 int i, c, last;
2435
2436 /* return if at begin of file */
2437 if (edit->curs1 <= 0)
2438 return 0;
2439
2440 c = (unsigned char) edit_get_byte (edit, edit->curs1 - 1);
2441 /* return if not at end or in word */
2442 if (isspace (c) || !(isalnum (c) || c == '_'))
2443 return 0;
2444
2445 /* search start of word to be completed */
2446 for (i = 2;; i++) {
2447 /* return if at begin of file */
2448 if (edit->curs1 - i < 0)
2449 return 0;
2450
2451 last = c;
2452 c = (unsigned char) edit_get_byte (edit, edit->curs1 - i);
2453
2454 if (!(isalnum (c) || c == '_')) {
2455 /* return if word starts with digit */
2456 if (isdigit (last))
2457 return 0;
2458
2459 *word_start = edit->curs1 - (i - 1); /* start found */
2460 *word_len = i - 1;
2461 break;
2462 }
2463 }
2464 /* success */
2465 return 1;
2466 }
2467
2468
2469 /* (re)set search parameters to the given values */
2470 static void edit_set_search_parameters (int rs, int rb, int rr, int rw, int rc)
2471 {
2472 replace_scanf = rs;
2473 replace_backwards = rb;
2474 replace_regexp = rr;
2475 replace_whole = rw;
2476 replace_case = rc;
2477 }
2478
2479
2480 #define MAX_WORD_COMPLETIONS 100 /* in listbox */
2481
2482 /* collect the possible completions */
2483 static int edit_collect_completions (WEdit *edit, long start,
2484 int word_len, char *match_expr, struct selection *compl, int *num)
2485 {
2486 int len, max_len = 0, i, skip;
2487 char *bufpos;
2488
2489 /* collect max MAX_WORD_COMPLETIONS completions */
2490 while (*num < MAX_WORD_COMPLETIONS) {
2491 /* get next match */
2492 start = edit_find (start - 1, (unsigned char *) match_expr, &len,
2493 edit->last_byte, (int (*)(void *, long)) edit_get_byte,
2494 (void *) edit, 0);
2495
2496 /* not matched */
2497 if (start < 0)
2498 break;
2499
2500 /* add matched completion if not yet added */
2501 bufpos = &edit->buffers1[start >> S_EDIT_BUF_SIZE][start & M_EDIT_BUF_SIZE];
2502 skip = 0;
2503 for (i = 0; i < *num; i++) {
2504 if (strncmp (&compl[i].text[word_len], &bufpos[word_len],
2505 max (len, compl[i].len) - word_len) == 0) {
2506 skip = 1;
2507 break; /* skip it, already added */
2508 }
2509 }
2510 if (skip)
2511 continue;
2512
2513 compl[*num].text = CMalloc (len + 1);
2514 compl[*num].len = len;
2515 for (i = 0; i < len; i++)
2516 compl[*num].text[i] = *(bufpos + i);
2517 compl[*num].text[i] = '\0';
2518 (*num)++;
2519
2520 /* note the maximal length needed for the completion dialog */
2521 if (len > max_len)
2522 max_len = len;
2523 }
2524 return max_len;
2525 }
2526
2527
2528 static int compllist_callback (void *data)
2529 {
2530 return 0;
2531 }
2532
2533
2534 /* let the user select its preferred completion */
2535 static void
2536 edit_completion_dialog (WEdit *edit, int max_len, int word_len,
2537 struct selection *compl, int num_compl)
2538 {
2539 int start_x, start_y, offset, i;
2540 char *curr = NULL;
2541 Dlg_head *compl_dlg;
2542 WListbox *compl_list;
2543 unsigned int compl_dlg_h; /* completion dialog height */
2544 unsigned int compl_dlg_w; /* completion dialog width */
2545
2546 /* calculate the dialog metrics */
2547 compl_dlg_h = num_compl + 2;
2548 compl_dlg_w = max_len + 4;
2549 start_x = edit->curs_col + edit->start_col - (compl_dlg_w / 2);
2550 start_y = edit->curs_row + EDIT_TEXT_VERTICAL_OFFSET + 1;
2551
2552 if (start_x < 0)
2553 start_x = 0;
2554 if (compl_dlg_w > COLS)
2555 compl_dlg_w = COLS;
2556 if (compl_dlg_h > LINES - 2)
2557 compl_dlg_h = LINES - 2;
2558
2559 offset = start_x + compl_dlg_w - COLS;
2560 if (offset > 0)
2561 start_x -= offset;
2562 offset = start_y + compl_dlg_h - LINES;
2563 if (offset > 0)
2564 start_y -= (offset + 1);
2565
2566 /* create the dialog */
2567 compl_dlg = create_dlg (start_y, start_x, compl_dlg_h, compl_dlg_w,
2568 dialog_colors, NULL, "[Completion]", NULL,
2569 DLG_COMPACT);
2570
2571 /* create the listbox */
2572 compl_list = listbox_new (1, 1, compl_dlg_w - 2, compl_dlg_h - 2, 0,
2573 compllist_callback, NULL);
2574
2575 /* add the dialog */
2576 add_widget (compl_dlg, compl_list);
2577
2578 /* fill the listbox with the completions */
2579 for (i = 0; i < num_compl; i++)
2580 listbox_add_item (compl_list, 0, 0, compl[i].text, NULL);
2581
2582 /* pop up the dialog */
2583 run_dlg (compl_dlg);
2584
2585 /* apply the choosen completion */
2586 if (compl_dlg->ret_value == B_ENTER) {
2587 listbox_get_current (compl_list, &curr, NULL);
2588 if (curr)
2589 for (curr += word_len; *curr; curr++)
2590 edit_insert (edit, *curr);
2591 }
2592
2593 /* destroy dialog before return */
2594 destroy_dlg (compl_dlg);
2595 }
2596
2597
2598 /* complete current word using regular expression search */
2599 /* backwards beginning at current cursor position */
2600 void edit_complete_word_cmd (WEdit *edit)
2601 {
2602 int word_len = 0, i, num_compl = 0, max_len;
2603 long word_start = 0;
2604 char *bufpos;
2605 char match_expr[MAX_REPL_LEN];
2606 struct selection compl[MAX_WORD_COMPLETIONS]; /* completions */
2607
2608 /* don't want to disturb another search */
2609 int old_rs = replace_scanf;
2610 int old_rb = replace_backwards;
2611 int old_rr = replace_regexp;
2612 int old_rw = replace_whole;
2613 int old_rc = replace_case;
2614
2615 /* search start of word to be completed */
2616 if (!edit_find_word_start (edit, &word_start, &word_len))
2617 return;
2618
2619 /* prepare match expression */
2620 bufpos = &edit->buffers1[word_start >> S_EDIT_BUF_SIZE]
2621 [word_start & M_EDIT_BUF_SIZE];
2622 strncpy (match_expr, bufpos, word_len);
2623 match_expr[word_len] = '\0';
2624 strcat (match_expr, "[a-zA-Z_0-9]+");
2625
2626 /* init search: backward, regexp, whole word, case sensitive */
2627 edit_set_search_parameters (0, 1, 1, 1, 1);
2628
2629 /* collect the possible completions */
2630 /* start search from curs1 down to begin of file */
2631 max_len = edit_collect_completions (edit, word_start, word_len,
2632 match_expr, (struct selection *) &compl, &num_compl);
2633
2634 if (num_compl > 0) {
2635 /* insert completed word if there is only one match */
2636 if (num_compl == 1) {
2637 for (i = word_len; i < compl[0].len; i++)
2638 edit_insert (edit, *(compl[0].text + i));
2639 }
2640 /* more than one possible completion => ask the user */
2641 else {
2642 /* !!! usually only a beep is expected and when <ALT-TAB> is !!! */
2643 /* !!! pressed again the selection dialog pops up, but that !!! */
2644 /* !!! seems to require a further internal state !!! */
2645 /*beep ();*/
2646
2647 /* let the user select the preferred completion */
2648 edit_completion_dialog (edit, max_len, word_len,
2649 (struct selection *) &compl, num_compl);
2650 }
2651 }
2652
2653 /* release memory before return */
2654 for (i = 0; i < num_compl; i++)
2655 free (compl[i].text);
2656
2657 /* restore search parameters */
2658 edit_set_search_parameters (old_rs, old_rb, old_rr, old_rw, old_rc);
2659 }
Midnight Commander