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Hide private API of editor (#361).
[midnight-commander.git] / edit / editcmd.c
blob54bcbcaf9ee0bea47b075df59cd301d9f27963dd
1 /* editor high level editing commands
2
3 Copyright (C) 1996, 1997, 1998, 2001, 2002, 2003, 2004, 2005, 2006,
4 2007 Free Software Foundation, Inc.
5
6 Authors: 1996, 1997 Paul Sheer
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 02110-1301, USA.
22
23 */
24
25 /** \file
26 * \brief Source: editor high level editing commands
27 * \author Paul Sheer
28 * \date 1996, 1997
29 */
30
31 /* #define PIPE_BLOCKS_SO_READ_BYTE_BY_BYTE */
32
33 #include <config.h>
34
35 #include <assert.h>
36 #include <ctype.h>
37
38 #include <stdio.h>
39 #include <stdarg.h>
40 #include <sys/types.h>
41 #include <unistd.h>
42 #include <string.h>
43 #include <errno.h>
44 #include <sys/stat.h>
45 #include <stdlib.h>
46
47 #include "../src/global.h"
48 #include "../src/history.h"
49
50 #include "edit-impl.h"
51 #include "editlock.h"
52 #include "editcmddef.h"
53 #include "edit-widget.h"
54 #include "editcmd_dialogs.h"
55 #include "../edit/etags.h"
56 #include "../src/panel.h"
57
58 #include "../src/tty.h" /* LINES */
59 #include "../src/widget.h" /* listbox_new() */
60 #include "../src/layout.h" /* clr_scr() */
61 #include "../src/main.h" /* mc_home source_codepage */
62 #include "../src/help.h" /* interactive_display() */
63 #include "../src/key.h" /* XCTRL */
64 #include "../src/wtools.h" /* message() */
65 #include "../src/charsets.h"
66 #include "../src/selcodepage.h"
67 #include "../src/strutil.h" /* utf string functions */
68
69 /* globals: */
70
71 /* search and replace: */
72 static int search_create_bookmark = 0;
73 /* static int search_in_all_charsets = 0; */
74
75 /* queries on a save */
76 int edit_confirm_save = 1;
77
78 static int edit_save_cmd (WEdit *edit);
79 static unsigned char *edit_get_block (WEdit *edit, long start,
80 long finish, int *l);
81
82 static void
83 edit_search_cmd_search_create_bookmark(WEdit * edit)
84 {
85 int found = 0, books = 0;
86 int l = 0, l_last = -1;
87 long q = 0;
88 gsize len = 0;
89
90 for (;;) {
91 if (!mc_search_run(edit->search, (void *) edit, q, edit->last_byte, &len))
92 break;
93
94 found++;
95 l += edit_count_lines (edit, q, edit->search->normal_offset);
96 if (l != l_last) {
97 book_mark_insert (edit, l, BOOK_MARK_FOUND_COLOR);
98 books++;
99 }
100 l_last = l;
101 q = edit->search->normal_offset + 1;
102 }
103
104 if (found) {
105 /* in response to number of bookmarks added because of string being found %d times */
106 message (D_NORMAL, _("Search"), _(" %d items found, %d bookmarks added "), found, books);
107 } else {
108 edit_error_dialog (_ ("Search"), _ (" Search string not found "));
109 }
110 }
111
112 static int
113 edit_search_cmd_callback(const void *user_data, gsize char_offset)
114 {
115 return edit_get_byte ((WEdit * )user_data, (long) char_offset);
116 }
117
118 void edit_help_cmd (WEdit * edit)
119 {
120 interactive_display (NULL, "[Internal File Editor]");
121 edit->force |= REDRAW_COMPLETELY;
122 }
123
124 void edit_refresh_cmd (WEdit * edit)
125 {
126 #ifndef HAVE_SLANG
127 clr_scr();
128 do_refresh();
129 #else
130 {
131 int color;
132 edit_get_syntax_color (edit, -1, &color);
133 }
134 touchwin(stdscr);
135 #endif /* !HAVE_SLANG */
136 mc_refresh();
137 doupdate();
138 }
139
140 /* If 0 (quick save) then a) create/truncate <filename> file,
141 b) save to <filename>;
142 if 1 (safe save) then a) save to <tempnam>,
143 b) rename <tempnam> to <filename>;
144 if 2 (do backups) then a) save to <tempnam>,
145 b) rename <filename> to <filename.backup_ext>,
146 c) rename <tempnam> to <filename>. */
147
148 /* returns 0 on error, -1 on abort */
149 static int
150 edit_save_file (WEdit *edit, const char *filename)
151 {
152 char *p;
153 gchar *tmp;
154 long filelen = 0;
155 char *savename = 0;
156 gchar *real_filename;
157 int this_save_mode, fd = -1;
158
159 if (!filename)
160 return 0;
161 if (!*filename)
162 return 0;
163
164 if (*filename != PATH_SEP && edit->dir) {
165 real_filename = concat_dir_and_file (edit->dir, filename);
166 } else {
167 real_filename = g_strdup(filename);
168 }
169
170 this_save_mode = option_save_mode;
171 if (this_save_mode != EDIT_QUICK_SAVE) {
172 if (!vfs_file_is_local (real_filename) ||
173 (fd = mc_open (real_filename, O_RDONLY | O_BINARY)) == -1) {
174 /*
175 * The file does not exists yet, so no safe save or
176 * backup are necessary.
177 */
178 this_save_mode = EDIT_QUICK_SAVE;
179 }
180 if (fd != -1)
181 mc_close (fd);
182 }
183
184 if (this_save_mode == EDIT_QUICK_SAVE &&
185 !edit->skip_detach_prompt) {
186 int rv;
187 struct stat sb;
188
189 rv = mc_stat (real_filename, &sb);
190 if (rv == 0 && sb.st_nlink > 1) {
191 rv = edit_query_dialog3 (_("Warning"),
192 _(" File has hard-links. Detach before saving? "),
193 _("&Yes"), _("&No"), _("&Cancel"));
194 switch (rv) {
195 case 0:
196 this_save_mode = EDIT_SAFE_SAVE;
197 /* fallthrough */
198 case 1:
199 edit->skip_detach_prompt = 1;
200 break;
201 default:
202 g_free(real_filename);
203 return -1;
204 }
205 }
206
207 /* Prevent overwriting changes from other editor sessions. */
208 if (rv == 0 && edit->stat1.st_mtime != 0 && edit->stat1.st_mtime != sb.st_mtime) {
209
210 /* The default action is "Cancel". */
211 query_set_sel(1);
212
213 rv = edit_query_dialog2 (
214 _("Warning"),
215 _("The file has been modified in the meantime. Save anyway?"),
216 _("&Yes"),
217 _("&Cancel"));
218 if (rv != 0){
219 g_free(real_filename);
220 return -1;
221 }
222 }
223 }
224
225 if (this_save_mode != EDIT_QUICK_SAVE) {
226 char *savedir, *saveprefix;
227 const char *slashpos;
228 slashpos = strrchr (real_filename, PATH_SEP);
229 if (slashpos) {
230 savedir = g_strdup (real_filename);
231 savedir[slashpos - real_filename + 1] = '\0';
232 } else
233 savedir = g_strdup (".");
234 saveprefix = concat_dir_and_file (savedir, "cooledit");
235 g_free (savedir);
236 fd = mc_mkstemps (&savename, saveprefix, NULL);
237 g_free (saveprefix);
238 if (!savename){
239 g_free(real_filename);
240 return 0;
241 }
242 /* FIXME:
243 * Close for now because mc_mkstemps use pure open system call
244 * to create temporary file and it needs to be reopened by
245 * VFS-aware mc_open().
246 */
247 close (fd);
248 } else
249 savename = g_strdup (real_filename);
250
251 mc_chown (savename, edit->stat1.st_uid, edit->stat1.st_gid);
252 mc_chmod (savename, edit->stat1.st_mode);
253
254 if ((fd =
255 mc_open (savename, O_CREAT | O_WRONLY | O_TRUNC | O_BINARY,
256 edit->stat1.st_mode)) == -1)
257 goto error_save;
258
259 /* pipe save */
260 if ((p = edit_get_write_filter (savename, real_filename))) {
261 FILE *file;
262
263 mc_close (fd);
264 file = (FILE *) popen (p, "w");
265
266 if (file) {
267 filelen = edit_write_stream (edit, file);
268 #if 1
269 pclose (file);
270 #else
271 if (pclose (file) != 0) {
272 tmp = g_strconcat (_(" Error writing to pipe: "),
273 p, " ", (char *) NULL);
274 edit_error_dialog (_("Error"), tmp);
275 g_free(tmp);
276 g_free (p);
277 goto error_save;
278 }
279 #endif
280 } else {
281 tmp = g_strconcat (_(" Cannot open pipe for writing: "),
282 p, " ", (char *) NULL);
283
284 edit_error_dialog (_("Error"),
285 get_sys_error (tmp));
286 g_free (p);
287 g_free(tmp);
288 goto error_save;
289 }
290 g_free (p);
291 } else {
292 long buf;
293 buf = 0;
294 filelen = edit->last_byte;
295 while (buf <= (edit->curs1 >> S_EDIT_BUF_SIZE) - 1) {
296 if (mc_write (fd, (char *) edit->buffers1[buf], EDIT_BUF_SIZE)
297 != EDIT_BUF_SIZE) {
298 mc_close (fd);
299 goto error_save;
300 }
301 buf++;
302 }
303 if (mc_write
304 (fd, (char *) edit->buffers1[buf],
305 edit->curs1 & M_EDIT_BUF_SIZE) !=
306 (edit->curs1 & M_EDIT_BUF_SIZE)) {
307 filelen = -1;
308 } else if (edit->curs2) {
309 edit->curs2--;
310 buf = (edit->curs2 >> S_EDIT_BUF_SIZE);
311 if (mc_write
312 (fd,
313 (char *) edit->buffers2[buf] + EDIT_BUF_SIZE -
314 (edit->curs2 & M_EDIT_BUF_SIZE) - 1,
315 1 + (edit->curs2 & M_EDIT_BUF_SIZE)) !=
316 1 + (edit->curs2 & M_EDIT_BUF_SIZE)) {
317 filelen = -1;
318 } else {
319 while (--buf >= 0) {
320 if (mc_write
321 (fd, (char *) edit->buffers2[buf],
322 EDIT_BUF_SIZE) != EDIT_BUF_SIZE) {
323 filelen = -1;
324 break;
325 }
326 }
327 }
328 edit->curs2++;
329 }
330 if (mc_close (fd))
331 goto error_save;
332
333 /* Update the file information, especially the mtime. */
334 if (mc_stat (savename, &edit->stat1) == -1)
335 goto error_save;
336 }
337
338 if (filelen != edit->last_byte)
339 goto error_save;
340
341 if (this_save_mode == EDIT_DO_BACKUP) {
342 assert (option_backup_ext != NULL);
343 tmp = g_strconcat (real_filename, option_backup_ext,(char *) NULL);
344 if (mc_rename (real_filename, tmp) == -1){
345 g_free(tmp);
346 goto error_save;
347 }
348 }
349
350 if (this_save_mode != EDIT_QUICK_SAVE)
351 if (mc_rename (savename, real_filename) == -1)
352 goto error_save;
353 g_free (savename);
354 g_free(real_filename);
355 return 1;
356 error_save:
357 /* FIXME: Is this safe ?
358 * if (this_save_mode != EDIT_QUICK_SAVE)
359 * mc_unlink (savename);
360 */
361 g_free(real_filename);
362 g_free (savename);
363 return 0;
364 }
365
366 void menu_save_mode_cmd (void)
367 {
368 #define DLG_X 38
369 #define DLG_Y 10
370 static char *str_result;
371 static int save_mode_new;
372 static const char *str[] =
373 {
374 N_("Quick save "),
375 N_("Safe save "),
376 N_("Do backups -->")};
377
378 static QuickWidget widgets[] =
379 {
380 {quick_button, 18, DLG_X, 7, DLG_Y, N_("&Cancel"), 0,
381 B_CANCEL, 0, 0, NULL, NULL, NULL},
382 {quick_button, 6, DLG_X, 7, DLG_Y, N_("&OK"), 0,
383 B_ENTER, 0, 0, NULL, NULL, NULL},
384 {quick_input, 23, DLG_X, 5, DLG_Y, 0, 9,
385 0, 0, &str_result, "edit-backup-ext", NULL, NULL},
386 {quick_label, 22, DLG_X, 4, DLG_Y, N_("Extension:"), 0,
387 0, 0, 0, NULL, NULL, NULL},
388 {quick_radio, 4, DLG_X, 3, DLG_Y, "", 3,
389 0, &save_mode_new, (char **) str, NULL, NULL, NULL},
390 NULL_QuickWidget};
391 static QuickDialog dialog =
392 {DLG_X, DLG_Y, -1, -1, N_(" Edit Save Mode "), "[Edit Save Mode]",
393 widgets, 0};
394 static int i18n_flag = 0;
395
396 if (!i18n_flag) {
397 size_t i;
398 size_t maxlen = 0;
399 int dlg_x;
400 size_t l1;
401
402 /* OK/Cancel buttons */
403 l1 = str_term_width1 (_(widgets[0].text)) + str_term_width1 (_(widgets[1].text)) + 5;
404 maxlen = max (maxlen, l1);
405
406 for (i = 0; i < 3; i++ ) {
407 str[i] = _(str[i]);
408 maxlen = max (maxlen, (size_t) str_term_width1 (str[i]) + 7);
409 }
410 i18n_flag = 1;
411
412 dlg_x = maxlen + str_term_width1 (_(widgets[3].text)) + 5 + 1;
413 widgets[2].hotkey_pos = str_term_width1 (_(widgets[3].text)); /* input field length */
414 dlg_x = min (COLS, dlg_x);
415 dialog.xlen = dlg_x;
416
417 i = (dlg_x - l1)/3;
418 widgets[1].relative_x = i;
419 widgets[0].relative_x = i + str_term_width1 (_(widgets[1].text)) + i + 4;
420
421 widgets[2].relative_x = widgets[3].relative_x = maxlen + 2;
422
423 for (i = 0; i < sizeof (widgets)/sizeof (widgets[0]); i++)
424 widgets[i].x_divisions = dlg_x;
425 }
426
427 assert (option_backup_ext != NULL);
428 widgets[2].text = option_backup_ext;
429 widgets[4].value = option_save_mode;
430 if (quick_dialog (&dialog) != B_ENTER)
431 return;
432 option_save_mode = save_mode_new;
433
434 g_free (option_backup_ext);
435 option_backup_ext = str_result;
436 str_result = NULL;
437 }
438
439 void
440 edit_set_filename (WEdit *edit, const char *f)
441 {
442 g_free (edit->filename);
443 if (!f)
444 f = "";
445 edit->filename = g_strdup (f);
446 if (edit->dir == NULL && *f != PATH_SEP)
447 #ifdef USE_VFS
448 edit->dir = g_strdup (vfs_get_current_dir ());
449 #else
450 edit->dir = g_get_current_dir ();
451 #endif
452 }
453
454 /* Here we want to warn the users of overwriting an existing file,
455 but only if they have made a change to the filename */
456 /* returns 1 on success */
457 int
458 edit_save_as_cmd (WEdit *edit)
459 {
460 /* This heads the 'Save As' dialog box */
461 char *exp;
462 int save_lock = 0;
463 int different_filename = 0;
464
465 exp = input_expand_dialog (
466 _(" Save As "), _(" Enter file name: "),MC_HISTORY_EDIT_SAVE_AS, edit->filename);
467 edit_push_action (edit, KEY_PRESS + edit->start_display);
468
469 if (exp) {
470 if (!*exp) {
471 g_free (exp);
472 edit->force |= REDRAW_COMPLETELY;
473 return 0;
474 } else {
475 int rv;
476 if (strcmp (edit->filename, exp)) {
477 int file;
478 different_filename = 1;
479 if ((file = mc_open (exp, O_RDONLY | O_BINARY)) != -1) {
480 /* the file exists */
481 mc_close (file);
482 /* Overwrite the current file or cancel the operation */
483 if (edit_query_dialog2
484 (_("Warning"),
485 _(" A file already exists with this name. "),
486 _("&Overwrite"), _("&Cancel"))) {
487 edit->force |= REDRAW_COMPLETELY;
488 g_free (exp);
489 return 0;
490 }
491 }
492 save_lock = edit_lock_file (exp);
493 } else {
494 /* filenames equal, check if already locked */
495 if (!edit->locked && !edit->delete_file)
496 save_lock = edit_lock_file (exp);
497 }
498
499 rv = edit_save_file (edit, exp);
500 switch (rv) {
501 case 1:
502 /* Succesful, so unlock both files */
503 if (different_filename) {
504 if (save_lock)
505 edit_unlock_file (exp);
506 if (edit->locked)
507 edit->locked = edit_unlock_file (edit->filename);
508 } else {
509 if (edit->locked || save_lock)
510 edit->locked = edit_unlock_file (edit->filename);
511 }
512
513 edit_set_filename (edit, exp);
514 g_free (exp);
515 edit->modified = 0;
516 edit->delete_file = 0;
517 if (different_filename)
518 edit_load_syntax (edit, NULL, option_syntax_type);
519 edit->force |= REDRAW_COMPLETELY;
520 return 1;
521 default:
522 edit_error_dialog (_(" Save As "),
523 get_sys_error (_
524 (" Cannot save file. ")));
525 /* fallthrough */
526 case -1:
527 /* Failed, so maintain modify (not save) lock */
528 if (save_lock)
529 edit_unlock_file (exp);
530 g_free (exp);
531 edit->force |= REDRAW_COMPLETELY;
532 return 0;
533 }
534 }
535 }
536 edit->force |= REDRAW_COMPLETELY;
537 return 0;
538 }
539
540 /* {{{ Macro stuff starts here */
541
542 /* creates a macro file if it doesn't exist */
543 static FILE *edit_open_macro_file (const char *r)
544 {
545 gchar *filename;
546 FILE *fd;
547 int file;
548 filename = concat_dir_and_file (home_dir, EDIT_MACRO_FILE);
549 if ((file = open (filename, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)) == -1){
550 g_free(filename);
551 return 0;
552 }
553 close (file);
554 fd = fopen (filename, r);
555 g_free(filename);
556 return fd;
557 }
558
559 #define MAX_MACROS 1024
560 static int saved_macro[MAX_MACROS + 1];
561 static int saved_macros_loaded = 0;
562
563 /*
564 This is just to stop the macro file be loaded over and over for keys
565 that aren't defined to anything. On slow systems this could be annoying.
566 */
567 static int
568 macro_exists (int k)
569 {
570 int i;
571 for (i = 0; i < MAX_MACROS && saved_macro[i]; i++)
572 if (saved_macro[i] == k)
573 return i;
574 return -1;
575 }
576
577 /* returns 1 on error */
578 static int
579 edit_delete_macro (WEdit * edit, int k)
580 {
581 gchar *tmp, *tmp2;
582 struct macro macro[MAX_MACRO_LENGTH];
583 FILE *f, *g;
584 int s, i, n, j = 0;
585
586 (void) edit;
587
588 if (saved_macros_loaded)
589 if ((j = macro_exists (k)) < 0)
590 return 0;
591 tmp = concat_dir_and_file (home_dir, EDIT_TEMP_FILE);
592 g = fopen (tmp , "w");
593 g_free(tmp);
594 if (!g) {
595 edit_error_dialog (_(" Delete macro "),
596 get_sys_error (_(" Cannot open temp file ")));
597 return 1;
598 }
599 f = edit_open_macro_file ("r");
600 if (!f) {
601 edit_error_dialog (_(" Delete macro "),
602 get_sys_error (_(" Cannot open macro file ")));
603 fclose (g);
604 return 1;
605 }
606 for (;;) {
607 n = fscanf (f, ("key '%d 0': "), &s);
608 if (!n || n == EOF)
609 break;
610 n = 0;
611 while (fscanf (f, "%hd %hd, ", &macro[n].command, &macro[n].ch))
612 n++;
613 fscanf (f, ";\n");
614 if (s != k) {
615 fprintf (g, ("key '%d 0': "), s);
616 for (i = 0; i < n; i++)
617 fprintf (g, "%hd %hd, ", macro[i].command, macro[i].ch);
618 fprintf (g, ";\n");
619 }
620 }
621 fclose (f);
622 fclose (g);
623 tmp = concat_dir_and_file (home_dir, EDIT_TEMP_FILE);
624 tmp2 = concat_dir_and_file (home_dir, EDIT_MACRO_FILE);
625 if (rename ( tmp, tmp2) == -1) {
626 edit_error_dialog (_(" Delete macro "),
627 get_sys_error (_(" Cannot overwrite macro file ")));
628 g_free(tmp);
629 g_free(tmp2);
630 return 1;
631 }
632 g_free(tmp);
633 g_free(tmp2);
634
635 if (saved_macros_loaded)
636 memmove (saved_macro + j, saved_macro + j + 1, sizeof (int) * (MAX_MACROS - j - 1));
637 return 0;
638 }
639
640 /* returns 0 on error */
641 int edit_save_macro_cmd (WEdit * edit, struct macro macro[], int n)
642 {
643 FILE *f;
644 int s, i;
645
646 edit_push_action (edit, KEY_PRESS + edit->start_display);
647 s = editcmd_dialog_raw_key_query (_(" Save macro "),
648 _(" Press the macro's new hotkey: "), 1);
649 edit->force |= REDRAW_COMPLETELY;
650 if (s) {
651 if (edit_delete_macro (edit, s))
652 return 0;
653 f = edit_open_macro_file ("a+");
654 if (f) {
655 fprintf (f, ("key '%d 0': "), s);
656 for (i = 0; i < n; i++)
657 fprintf (f, "%hd %hd, ", macro[i].command, macro[i].ch);
658 fprintf (f, ";\n");
659 fclose (f);
660 if (saved_macros_loaded) {
661 for (i = 0; i < MAX_MACROS && saved_macro[i]; i++);
662 saved_macro[i] = s;
663 }
664 return 1;
665 } else
666 edit_error_dialog (_(" Save macro "), get_sys_error (_(" Cannot open macro file ")));
667 }
668 return 0;
669 }
670
671 void edit_delete_macro_cmd (WEdit * edit)
672 {
673 int command;
674
675 command = editcmd_dialog_raw_key_query (_ (" Delete macro "),
676 _ (" Press macro hotkey: "), 1);
677
678 if (!command)
679 return;
680
681 edit_delete_macro (edit, command);
682 }
683
684 /* return 0 on error */
685 int edit_load_macro_cmd (WEdit * edit, struct macro macro[], int *n, int k)
686 {
687 FILE *f;
688 int s, i = 0, found = 0;
689
690 (void) edit;
691
692 if (saved_macros_loaded)
693 if (macro_exists (k) < 0)
694 return 0;
695
696 if ((f = edit_open_macro_file ("r"))) {
697 struct macro dummy;
698 do {
699 int u;
700 u = fscanf (f, ("key '%d 0': "), &s);
701 if (!u || u == EOF)
702 break;
703 if (!saved_macros_loaded)
704 saved_macro[i++] = s;
705 if (!found) {
706 *n = 0;
707 while (*n < MAX_MACRO_LENGTH && 2 == fscanf (f, "%hd %hd, ", &macro[*n].command, &macro[*n].ch))
708 (*n)++;
709 } else {
710 while (2 == fscanf (f, "%hd %hd, ", &dummy.command, &dummy.ch));
711 }
712 fscanf (f, ";\n");
713 if (s == k)
714 found = 1;
715 } while (!found || !saved_macros_loaded);
716 if (!saved_macros_loaded) {
717 saved_macro[i] = 0;
718 saved_macros_loaded = 1;
719 }
720 fclose (f);
721 return found;
722 } else
723 edit_error_dialog (_(" Load macro "),
724 get_sys_error (_(" Cannot open macro file ")));
725 return 0;
726 }
727
728 /* }}} Macro stuff starts here */
729
730 /* returns 1 on success */
731 int edit_save_confirm_cmd (WEdit * edit)
732 {
733 gchar *f = NULL;
734
735 if (edit_confirm_save) {
736 f = g_strconcat (_(" Confirm save file? : "), edit->filename, " ", NULL);
737 if (edit_query_dialog2 (_(" Save file "), f, _("&Save"), _("&Cancel"))){
738 g_free(f);
739 return 0;
740 }
741 g_free(f);
742 }
743 return edit_save_cmd (edit);
744 }
745
746
747 /* returns 1 on success */
748 static int
749 edit_save_cmd (WEdit *edit)
750 {
751 int res, save_lock = 0;
752
753 if (!edit->locked && !edit->delete_file)
754 save_lock = edit_lock_file (edit->filename);
755 res = edit_save_file (edit, edit->filename);
756
757 /* Maintain modify (not save) lock on failure */
758 if ((res > 0 && edit->locked) || save_lock)
759 edit->locked = edit_unlock_file (edit->filename);
760
761 /* On failure try 'save as', it does locking on its own */
762 if (!res)
763 return edit_save_as_cmd (edit);
764 edit->force |= REDRAW_COMPLETELY;
765 if (res > 0) {
766 edit->delete_file = 0;
767 edit->modified = 0;
768 }
769
770 return 1;
771 }
772
773
774 /* returns 1 on success */
775 int edit_new_cmd (WEdit * edit)
776 {
777 if (edit->modified) {
778 if (edit_query_dialog2 (_ ("Warning"), _ (" Current text was modified without a file save. \n Continue discards these changes. "), _ ("C&ontinue"), _ ("&Cancel"))) {
779 edit->force |= REDRAW_COMPLETELY;
780 return 0;
781 }
782 }
783 edit->force |= REDRAW_COMPLETELY;
784
785 return edit_renew (edit); /* if this gives an error, something has really screwed up */
786 }
787
788 /* returns 1 on error */
789 static int
790 edit_load_file_from_filename (WEdit * edit, char *exp)
791 {
792 int prev_locked = edit->locked;
793 char *prev_filename = g_strdup (edit->filename);
794
795 if (!edit_reload (edit, exp)) {
796 g_free (prev_filename);
797 return 1;
798 }
799
800 if (prev_locked)
801 edit_unlock_file (prev_filename);
802 g_free (prev_filename);
803 return 0;
804 }
805
806 static void
807 edit_load_syntax_file (WEdit * edit)
808 {
809 char *extdir;
810 int dir = 0;
811
812 if (geteuid () == 0) {
813 dir = query_dialog (_("Syntax file edit"),
814 _(" Which syntax file you want to edit? "), D_NORMAL, 2,
815 _("&User"), _("&System Wide"));
816 }
817
818 extdir = concat_dir_and_file (mc_home, "syntax" PATH_SEP_STR "Syntax");
819 if (!exist_file(extdir)) {
820 g_free (extdir);
821 extdir = concat_dir_and_file (mc_home_alt, "syntax" PATH_SEP_STR "Syntax");
822 }
823
824 if (dir == 0) {
825 char *buffer;
826
827 buffer = concat_dir_and_file (home_dir, EDIT_SYNTAX_FILE);
828 check_for_default (extdir, buffer);
829 edit_load_file_from_filename (edit, buffer);
830 g_free (buffer);
831 } else if (dir == 1)
832 edit_load_file_from_filename (edit, extdir);
833
834 g_free (extdir);
835 }
836
837 static void
838 edit_load_menu_file (WEdit * edit)
839 {
840 char *buffer;
841 char *menufile;
842 int dir = 0;
843
844 dir = query_dialog (
845 _(" Menu edit "),
846 _(" Which menu file do you want to edit? "), D_NORMAL,
847 geteuid() ? 2 : 3, _("&Local"), _("&User"), _("&System Wide")
848 );
849
850 menufile = concat_dir_and_file (mc_home, EDIT_GLOBAL_MENU);
851
852 if (!exist_file (menufile)) {
853 g_free (menufile);
854 menufile = concat_dir_and_file (mc_home_alt, EDIT_GLOBAL_MENU);
855 }
856
857 switch (dir) {
858 case 0:
859 buffer = g_strdup (EDIT_LOCAL_MENU);
860 check_for_default (menufile, buffer);
861 chmod (buffer, 0600);
862 break;
863
864 case 1:
865 buffer = concat_dir_and_file (home_dir, EDIT_HOME_MENU);
866 check_for_default (menufile, buffer);
867 break;
868
869 case 2:
870 buffer = concat_dir_and_file (mc_home, EDIT_GLOBAL_MENU);
871 if (!exist_file (buffer)) {
872 g_free (buffer);
873 buffer = concat_dir_and_file (mc_home_alt, EDIT_GLOBAL_MENU);
874 }
875 break;
876
877 default:
878 g_free (menufile);
879 return;
880 }
881
882 edit_load_file_from_filename (edit, buffer);
883
884 g_free (buffer);
885 g_free (menufile);
886 }
887
888 int
889 edit_load_cmd (WEdit *edit, edit_current_file_t what)
890 {
891 char *exp;
892
893 if (edit->modified
894 && (edit_query_dialog2
895 (_("Warning"),
896 _(" Current text was modified without a file save. \n"
897 " Continue discards these changes. "),
898 _("C&ontinue"), _("&Cancel")) == 1)) {
899 edit->force |= REDRAW_COMPLETELY;
900 return 0;
901 }
902
903 switch (what) {
904 case EDIT_FILE_COMMON:
905 exp = input_expand_dialog (_(" Load "), _(" Enter file name: "),
906 MC_HISTORY_EDIT_LOAD, edit->filename);
907
908 if (exp) {
909 if (*exp)
910 edit_load_file_from_filename (edit, exp);
911 g_free (exp);
912 }
913 break;
914
915 case EDIT_FILE_SYNTAX:
916 edit_load_syntax_file (edit);
917 break;
918
919 case EDIT_FILE_MENU:
920 edit_load_menu_file (edit);
921 break;
922
923 default:
924 break;
925 }
926
927 edit->force |= REDRAW_COMPLETELY;
928 return 0;
929 }
930
931 /*
932 if mark2 is -1 then marking is from mark1 to the cursor.
933 Otherwise its between the markers. This handles this.
934 Returns 1 if no text is marked.
935 */
936 int eval_marks (WEdit * edit, long *start_mark, long *end_mark)
937 {
938 if (edit->mark1 != edit->mark2) {
939 if (edit->mark2 >= 0) {
940 *start_mark = min (edit->mark1, edit->mark2);
941 *end_mark = max (edit->mark1, edit->mark2);
942 } else {
943 *start_mark = min (edit->mark1, edit->curs1);
944 *end_mark = max (edit->mark1, edit->curs1);
945 edit->column2 = edit->curs_col;
946 }
947 return 0;
948 } else {
949 *start_mark = *end_mark = 0;
950 edit->column2 = edit->column1 = 0;
951 return 1;
952 }
953 }
954
955 #define space_width 1
956
957 static void
958 edit_insert_column_of_text (WEdit * edit, unsigned char *data, int size, int width)
959 {
960 long cursor;
961 int i, col;
962 cursor = edit->curs1;
963 col = edit_get_col (edit);
964 for (i = 0; i < size; i++) {
965 if (data[i] == '\n') { /* fill in and move to next line */
966 int l;
967 long p;
968 if (edit_get_byte (edit, edit->curs1) != '\n') {
969 l = width - (edit_get_col (edit) - col);
970 while (l > 0) {
971 edit_insert (edit, ' ');
972 l -= space_width;
973 }
974 }
975 for (p = edit->curs1;; p++) {
976 if (p == edit->last_byte) {
977 edit_cursor_move (edit, edit->last_byte - edit->curs1);
978 edit_insert_ahead (edit, '\n');
979 p++;
980 break;
981 }
982 if (edit_get_byte (edit, p) == '\n') {
983 p++;
984 break;
985 }
986 }
987 edit_cursor_move (edit, edit_move_forward3 (edit, p, col, 0) - edit->curs1);
988 l = col - edit_get_col (edit);
989 while (l >= space_width) {
990 edit_insert (edit, ' ');
991 l -= space_width;
992 }
993 continue;
994 }
995 edit_insert (edit, data[i]);
996 }
997 edit_cursor_move (edit, cursor - edit->curs1);
998 }
999
1000
1001 void
1002 edit_block_copy_cmd (WEdit *edit)
1003 {
1004 long start_mark, end_mark, current = edit->curs1;
1005 int size;
1006 unsigned char *copy_buf;
1007
1008 edit_update_curs_col (edit);
1009 if (eval_marks (edit, &start_mark, &end_mark))
1010 return;
1011
1012 copy_buf = edit_get_block (edit, start_mark, end_mark, &size);
1013
1014 /* all that gets pushed are deletes hence little space is used on the stack */
1015
1016 edit_push_markers (edit);
1017
1018 if (column_highlighting) {
1019 edit_insert_column_of_text (edit, copy_buf, size,
1020 abs (edit->column2 - edit->column1));
1021 } else {
1022 while (size--)
1023 edit_insert_ahead (edit, copy_buf[size]);
1024 }
1025
1026 g_free (copy_buf);
1027 edit_scroll_screen_over_cursor (edit);
1028
1029 if (column_highlighting) {
1030 edit_set_markers (edit, 0, 0, 0, 0);
1031 edit_push_action (edit, COLUMN_ON);
1032 column_highlighting = 0;
1033 } else if (start_mark < current && end_mark > current)
1034 edit_set_markers (edit, start_mark,
1035 end_mark + end_mark - start_mark, 0, 0);
1036
1037 edit->force |= REDRAW_PAGE;
1038 }
1039
1040
1041 void
1042 edit_block_move_cmd (WEdit *edit)
1043 {
1044 long count;
1045 long current;
1046 unsigned char *copy_buf;
1047 long start_mark, end_mark;
1048 int deleted = 0;
1049 int x = 0;
1050
1051 if (eval_marks (edit, &start_mark, &end_mark))
1052 return;
1053 if (column_highlighting) {
1054 edit_update_curs_col (edit);
1055 x = edit->curs_col;
1056 if (start_mark <= edit->curs1 && end_mark >= edit->curs1)
1057 if ((x > edit->column1 && x < edit->column2)
1058 || (x > edit->column2 && x < edit->column1))
1059 return;
1060 } else if (start_mark <= edit->curs1 && end_mark >= edit->curs1)
1061 return;
1062
1063 if ((end_mark - start_mark) > option_max_undo / 2)
1064 if (edit_query_dialog2
1065 (_("Warning"),
1066 _
1067 (" Block is large, you may not be able to undo this action. "),
1068 _("C&ontinue"), _("&Cancel")))
1069 return;
1070
1071 edit_push_markers (edit);
1072 current = edit->curs1;
1073 if (column_highlighting) {
1074 int size, c1, c2, line;
1075 line = edit->curs_line;
1076 if (edit->mark2 < 0)
1077 edit_mark_cmd (edit, 0);
1078 c1 = min (edit->column1, edit->column2);
1079 c2 = max (edit->column1, edit->column2);
1080 copy_buf = edit_get_block (edit, start_mark, end_mark, &size);
1081 if (x < c2) {
1082 edit_block_delete_cmd (edit);
1083 deleted = 1;
1084 }
1085 edit_move_to_line (edit, line);
1086 edit_cursor_move (edit,
1087 edit_move_forward3 (edit,
1088 edit_bol (edit, edit->curs1),
1089 x, 0) - edit->curs1);
1090 edit_insert_column_of_text (edit, copy_buf, size, c2 - c1);
1091 if (!deleted) {
1092 line = edit->curs_line;
1093 edit_update_curs_col (edit);
1094 x = edit->curs_col;
1095 edit_block_delete_cmd (edit);
1096 edit_move_to_line (edit, line);
1097 edit_cursor_move (edit,
1098 edit_move_forward3 (edit,
1099 edit_bol (edit,
1100 edit->curs1),
1101 x, 0) - edit->curs1);
1102 }
1103 edit_set_markers (edit, 0, 0, 0, 0);
1104 edit_push_action (edit, COLUMN_ON);
1105 column_highlighting = 0;
1106 } else {
1107 copy_buf = g_malloc (end_mark - start_mark);
1108 edit_cursor_move (edit, start_mark - edit->curs1);
1109 edit_scroll_screen_over_cursor (edit);
1110 count = start_mark;
1111 while (count < end_mark) {
1112 copy_buf[end_mark - count - 1] = edit_delete (edit, 1);
1113 count++;
1114 }
1115 edit_scroll_screen_over_cursor (edit);
1116 edit_cursor_move (edit,
1117 current - edit->curs1 -
1118 (((current - edit->curs1) >
1119 0) ? end_mark - start_mark : 0));
1120 edit_scroll_screen_over_cursor (edit);
1121 while (count-- > start_mark)
1122 edit_insert_ahead (edit, copy_buf[end_mark - count - 1]);
1123 edit_set_markers (edit, edit->curs1,
1124 edit->curs1 + end_mark - start_mark, 0, 0);
1125 }
1126 edit_scroll_screen_over_cursor (edit);
1127 g_free (copy_buf);
1128 edit->force |= REDRAW_PAGE;
1129 }
1130
1131 static void
1132 edit_delete_column_of_text (WEdit * edit)
1133 {
1134 long p, q, r, m1, m2;
1135 int b, c, d;
1136 int n;
1137
1138 eval_marks (edit, &m1, &m2);
1139 n = edit_move_forward (edit, m1, 0, m2) + 1;
1140 c = edit_move_forward3 (edit, edit_bol (edit, m1), 0, m1);
1141 d = edit_move_forward3 (edit, edit_bol (edit, m2), 0, m2);
1142
1143 b = min (c, d);
1144 c = max (c, d);
1145
1146 while (n--) {
1147 r = edit_bol (edit, edit->curs1);
1148 p = edit_move_forward3 (edit, r, b, 0);
1149 q = edit_move_forward3 (edit, r, c, 0);
1150 if (p < m1)
1151 p = m1;
1152 if (q > m2)
1153 q = m2;
1154 edit_cursor_move (edit, p - edit->curs1);
1155 while (q > p) { /* delete line between margins */
1156 if (edit_get_byte (edit, edit->curs1) != '\n')
1157 edit_delete (edit, 1);
1158 q--;
1159 }
1160 if (n) /* move to next line except on the last delete */
1161 edit_cursor_move (edit, edit_move_forward (edit, edit->curs1, 1, 0) - edit->curs1);
1162 }
1163 }
1164
1165 /* if success return 0 */
1166 static int
1167 edit_block_delete (WEdit *edit)
1168 {
1169 long count;
1170 long start_mark, end_mark;
1171 if (eval_marks (edit, &start_mark, &end_mark))
1172 return 0;
1173 if (column_highlighting && edit->mark2 < 0)
1174 edit_mark_cmd (edit, 0);
1175 if ((end_mark - start_mark) > option_max_undo / 2) {
1176 /* Warning message with a query to continue or cancel the operation */
1177 if (edit_query_dialog2
1178 (_("Warning"),
1179 _
1180 (" Block is large, you may not be able to undo this action. "),
1181 _("C&ontinue"), _("&Cancel"))) {
1182 return 1;
1183 }
1184 }
1185 edit_push_markers (edit);
1186 edit_cursor_move (edit, start_mark - edit->curs1);
1187 edit_scroll_screen_over_cursor (edit);
1188 count = start_mark;
1189 if (start_mark < end_mark) {
1190 if (column_highlighting) {
1191 if (edit->mark2 < 0)
1192 edit_mark_cmd (edit, 0);
1193 edit_delete_column_of_text (edit);
1194 } else {
1195 while (count < end_mark) {
1196 edit_delete (edit, 1);
1197 count++;
1198 }
1199 }
1200 }
1201 edit_set_markers (edit, 0, 0, 0, 0);
1202 edit->force |= REDRAW_PAGE;
1203 return 0;
1204 }
1205
1206 /* returns 1 if canceelled by user */
1207 int edit_block_delete_cmd (WEdit * edit)
1208 {
1209 long start_mark, end_mark;
1210 if (eval_marks (edit, &start_mark, &end_mark)) {
1211 edit_delete_line (edit);
1212 return 0;
1213 }
1214 return edit_block_delete (edit);
1215 }
1216
1217 #define INPUT_INDEX 9
1218
1219 static gboolean
1220 editcmd_find (WEdit *edit, gsize *len)
1221 {
1222 gsize search_start = edit->search_start;
1223 gsize search_end;
1224
1225 if (edit->replace_backwards) {
1226 search_end = edit->curs1-1;
1227 while ((int) search_start >= 0) {
1228 if (search_end - search_start > edit->search->original_len && mc_search_is_fixed_search_str(edit->search))
1229 search_end = search_start + edit->search->original_len +1;
1230 if ( mc_search_run(edit->search, (void *) edit, search_start, search_end, len))
1231 {
1232 return TRUE;
1233 }
1234 search_start--;
1235 }
1236 edit->search->error_str = g_strdup(_(" Search string not found "));
1237 } else {
1238 return mc_search_run(edit->search, (void *) edit, edit->search_start, edit->last_byte, len);
1239 }
1240 return FALSE;
1241 }
1242
1243
1244 /* thanks to Liviu Daia <daia@stoilow.imar.ro> for getting this
1245 (and the above) routines to work properly - paul */
1246
1247 #define is_digit(x) ((x) >= '0' && (x) <= '9')
1248
1249 static char *
1250 edit_replace_cmd__conv_to_display(char *str)
1251 {
1252 #ifdef HAVE_CHARSET
1253 GString *tmp;
1254 tmp = str_convert_to_display (str);
1255
1256 if (tmp && tmp->len){
1257 g_free(str);
1258 str = tmp->str;
1259 }
1260 g_string_free (tmp, FALSE);
1261 return str;
1262 #else
1263 return g_strdup(str);
1264 #endif
1265 }
1266
1267 static char *
1268 edit_replace_cmd__conv_to_input(char *str)
1269 {
1270 #ifdef HAVE_CHARSET
1271 GString *tmp;
1272 tmp = str_convert_to_input (str);
1273
1274 if (tmp && tmp->len){
1275 g_free(str);
1276 str = tmp->str;
1277 }
1278 g_string_free (tmp, FALSE);
1279 return str;
1280 #else
1281 return g_strdup(str);
1282 #endif
1283 }
1284 /* call with edit = 0 before shutdown to close memory leaks */
1285 void
1286 edit_replace_cmd (WEdit *edit, int again)
1287 {
1288 /* 1 = search string, 2 = replace with */
1289 static char *saved1 = NULL; /* saved default[123] */
1290 static char *saved2 = NULL;
1291 char *input1 = NULL; /* user input from the dialog */
1292 char *input2 = NULL;
1293 char *str_for_prompt_dialog = NULL;
1294 int replace_yes;
1295 long times_replaced = 0, last_search;
1296 gboolean once_found = FALSE;
1297
1298 if (!edit) {
1299 g_free (saved1), saved1 = NULL;
1300 g_free (saved2), saved2 = NULL;
1301 return;
1302 }
1303
1304 last_search = edit->last_byte;
1305
1306 edit->force |= REDRAW_COMPLETELY;
1307
1308 if (again && !saved1 && !saved2)
1309 again = 0;
1310
1311 if (again) {
1312 input1 = g_strdup (saved1 ? saved1 : "");
1313 input2 = g_strdup (saved2 ? saved2 : "");
1314 } else {
1315 char *disp1 = edit_replace_cmd__conv_to_display(g_strdup (saved1 ? saved1 : ""));
1316 char *disp2 = edit_replace_cmd__conv_to_display(g_strdup (saved2 ? saved2 : ""));
1317
1318 edit_push_action (edit, KEY_PRESS + edit->start_display);
1319
1320 editcmd_dialog_replace_show (edit, disp1, disp2, &input1, &input2 );
1321
1322 g_free (disp1);
1323 g_free (disp2);
1324
1325 str_for_prompt_dialog = g_strdup(input2);
1326
1327 if (input1 == NULL || *input1 == '\0') {
1328 edit->force = REDRAW_COMPLETELY;
1329 goto cleanup;
1330 }
1331
1332 input1 = edit_replace_cmd__conv_to_input(input1);
1333 input2 = edit_replace_cmd__conv_to_input(input2);
1334
1335 g_free (saved1), saved1 = g_strdup (input1);
1336 g_free (saved2), saved2 = g_strdup (input2);
1337
1338 if (edit->search)
1339 {
1340 mc_search_free(edit->search);
1341 edit->search = NULL;
1342 }
1343 }
1344
1345 if (!edit->search)
1346 {
1347 edit->search = mc_search_new(input1, -1);
1348 if (edit->search == NULL)
1349 {
1350 edit->search_start = edit->curs1;
1351 return;
1352 }
1353 edit->search->search_type = edit->search_type;
1354 edit->search->is_all_charsets = edit->all_codepages;
1355 edit->search->is_case_sentitive = edit->replace_case;
1356 edit->search->search_fn = edit_search_cmd_callback;
1357 }
1358
1359 if (edit->found_len && edit->search_start == edit->found_start + 1
1360 && edit->replace_backwards)
1361 edit->search_start--;
1362
1363 if (edit->found_len && edit->search_start == edit->found_start - 1
1364 && !edit->replace_backwards)
1365 edit->search_start++;
1366
1367 do {
1368 gsize len = 0;
1369 long new_start;
1370
1371 if (! editcmd_find(edit, &len))
1372 {
1373 if (!(edit->search->error == MC_SEARCH_E_OK || (once_found && edit->search->error == MC_SEARCH_E_NOTFOUND)))
1374 {
1375 edit_error_dialog (_ ("Search"), edit->search->error_str);
1376 }
1377 break;
1378 }
1379 once_found = TRUE;
1380 new_start = edit->search->normal_offset;
1381
1382 edit->search_start = new_start = edit->search->normal_offset;
1383 /*returns negative on not found or error in pattern */
1384
1385 if (edit->search_start >= 0) {
1386 int i;
1387
1388 edit->found_start = edit->search_start;
1389 i = edit->found_len = len;
1390
1391 edit_cursor_move (edit, edit->search_start - edit->curs1);
1392 edit_scroll_screen_over_cursor (edit);
1393
1394 replace_yes = 1;
1395
1396 if (edit->replace_mode==0) {
1397 int l;
1398 l = edit->curs_row - edit->num_widget_lines / 3;
1399 if (l > 0)
1400 edit_scroll_downward (edit, l);
1401 if (l < 0)
1402 edit_scroll_upward (edit, -l);
1403
1404 edit_scroll_screen_over_cursor (edit);
1405 edit->force |= REDRAW_PAGE;
1406 edit_render_keypress (edit);
1407
1408 /*so that undo stops at each query */
1409 edit_push_key_press (edit);
1410
1411 switch (editcmd_dialog_replace_prompt_show (edit, str_for_prompt_dialog, /* and prompt 2/3 down */
1412 -1,
1413 -1)) {
1414 case B_ENTER:
1415 break;
1416 case B_SKIP_REPLACE:
1417 replace_yes = 0;
1418 break;
1419 case B_REPLACE_ALL:
1420 edit->replace_mode=1;
1421 break;
1422 case B_REPLACE_ONE:
1423 break;
1424 case B_CANCEL:
1425 replace_yes = 0;
1426 break;
1427 }
1428 }
1429 if (replace_yes) { /* delete then insert new */
1430 GString *repl_str, *tmp_str;
1431 tmp_str = g_string_new(input2);
1432
1433 repl_str = mc_search_prepare_replace_str (edit->search, tmp_str);
1434 g_string_free(tmp_str, TRUE);
1435 if (edit->search->error != MC_SEARCH_E_OK)
1436 {
1437 edit_error_dialog (_ ("Replace"), edit->search->error_str);
1438 break;
1439 }
1440
1441 while (i--)
1442 edit_delete (edit, 1);
1443
1444 while (++i < repl_str->len)
1445 edit_insert (edit, repl_str->str[i]);
1446
1447 g_string_free(repl_str, TRUE);
1448 edit->found_len = i;
1449 }
1450 /* so that we don't find the same string again */
1451 if (edit->replace_backwards) {
1452 last_search = edit->search_start;
1453 edit->search_start--;
1454 } else {
1455 edit->search_start += i;
1456 last_search = edit->last_byte;
1457 }
1458 edit_scroll_screen_over_cursor (edit);
1459 } else {
1460 const char *msg = _(" Replace ");
1461 /* try and find from right here for next search */
1462 edit->search_start = edit->curs1;
1463 edit_update_curs_col (edit);
1464
1465 edit->force |= REDRAW_PAGE;
1466 edit_render_keypress (edit);
1467 if (times_replaced) {
1468 message (D_NORMAL, msg, _(" %ld replacements made. "),
1469 times_replaced);
1470 } else
1471 query_dialog (msg, _(" Search string not found "),
1472 D_NORMAL, 1, _("&OK"));
1473 edit->replace_mode = -1;
1474 }
1475 } while (edit->replace_mode >0);
1476
1477 edit->force = REDRAW_COMPLETELY;
1478 edit_scroll_screen_over_cursor (edit);
1479 cleanup:
1480 g_free (str_for_prompt_dialog);
1481 g_free (input1);
1482 g_free (input2);
1483 }
1484
1485
1486 void edit_search_cmd (WEdit * edit, int again)
1487 {
1488 char *search_string = NULL, *search_string_dup = NULL;
1489
1490 gsize len = 0;
1491
1492 if (!edit)
1493 return;
1494
1495 if (edit->search != NULL)
1496 search_string_dup = search_string = g_strndup(edit->search->original, edit->search->original_len);
1497
1498 if (!again)
1499 {
1500 #ifdef HAVE_CHARSET
1501 GString *tmp;
1502 if (search_string && *search_string)
1503 {
1504 tmp = str_convert_to_display (search_string);
1505
1506 g_free(search_string_dup);
1507 search_string_dup = NULL;
1508
1509 if (tmp && tmp->len)
1510 search_string = search_string_dup = tmp->str;
1511 g_string_free (tmp, FALSE);
1512 }
1513 #endif /* HAVE_CHARSET */
1514 editcmd_dialog_search_show (edit, &search_string);
1515 #ifdef HAVE_CHARSET
1516 if (search_string && *search_string)
1517 {
1518 tmp = str_convert_to_input (search_string);
1519 if (tmp && tmp->len)
1520 search_string = tmp->str;
1521
1522 g_string_free (tmp, FALSE);
1523
1524 if (search_string_dup)
1525 g_free(search_string_dup);
1526 }
1527 #endif /* HAVE_CHARSET */
1528
1529 edit_push_action (edit, KEY_PRESS + edit->start_display);
1530
1531 if (!search_string)
1532 {
1533 edit->force |= REDRAW_COMPLETELY;
1534 edit_scroll_screen_over_cursor (edit);
1535 return;
1536 }
1537
1538 if (edit->search)
1539 {
1540 mc_search_free(edit->search);
1541 edit->search = NULL;
1542 }
1543 }
1544
1545 if (!edit->search)
1546 {
1547 edit->search = mc_search_new(search_string, -1);
1548 if (edit->search == NULL)
1549 {
1550 edit->search_start = edit->curs1;
1551 return;
1552 }
1553 edit->search->search_type = edit->search_type;
1554 edit->search->is_all_charsets = edit->all_codepages;
1555 edit->search->is_case_sentitive = edit->replace_case;
1556 edit->search->search_fn = edit_search_cmd_callback;
1557 }
1558
1559 if (search_create_bookmark)
1560 {
1561 edit_search_cmd_search_create_bookmark(edit);
1562 }
1563 else
1564 {
1565 if (edit->found_len && edit->search_start == edit->found_start + 1 && edit->replace_backwards)
1566 edit->search_start--;
1567
1568 if (edit->found_len && edit->search_start == edit->found_start - 1 && !edit->replace_backwards)
1569 edit->search_start++;
1570
1571
1572 if (editcmd_find(edit, &len))
1573 {
1574 edit->found_start = edit->search_start = edit->search->normal_offset;
1575 edit->found_len = len;
1576
1577 edit_cursor_move (edit, edit->search_start - edit->curs1);
1578 edit_scroll_screen_over_cursor (edit);
1579 if (edit->replace_backwards)
1580 edit->search_start--;
1581 else
1582 edit->search_start++;
1583 }
1584 else
1585 {
1586 edit->search_start = edit->curs1;
1587 if (edit->search->error_str)
1588 edit_error_dialog (_ ("Search"), edit->search->error_str);
1589 }
1590 }
1591
1592 edit->force |= REDRAW_COMPLETELY;
1593 edit_scroll_screen_over_cursor (edit);
1594 }
1595
1596
1597 /*
1598 * Check if it's OK to close the editor. If there are unsaved changes,
1599 * ask user. Return 1 if it's OK to exit, 0 to continue editing.
1600 */
1601 int
1602 edit_ok_to_exit (WEdit *edit)
1603 {
1604 if (!edit->modified)
1605 return 1;
1606
1607 switch (edit_query_dialog3
1608 (_("Quit"), _(" File was modified, Save with exit? "),
1609 _("&Cancel quit"), _("&Yes"), _("&No"))) {
1610 case 1:
1611 edit_push_markers (edit);
1612 edit_set_markers (edit, 0, 0, 0, 0);
1613 if (!edit_save_cmd (edit))
1614 return 0;
1615 break;
1616 case 2:
1617 break;
1618 case 0:
1619 case -1:
1620 return 0;
1621 }
1622
1623 return 1;
1624 }
1625
1626
1627 #define TEMP_BUF_LEN 1024
1628
1629 /* Return a null terminated length of text. Result must be g_free'd */
1630 static unsigned char *
1631 edit_get_block (WEdit *edit, long start, long finish, int *l)
1632 {
1633 unsigned char *s, *r;
1634 r = s = g_malloc (finish - start + 1);
1635 if (column_highlighting) {
1636 *l = 0;
1637 /* copy from buffer, excluding chars that are out of the column 'margins' */
1638 while (start < finish) {
1639 int c, x;
1640 x = edit_move_forward3 (edit, edit_bol (edit, start), 0,
1641 start);
1642 c = edit_get_byte (edit, start);
1643 if ((x >= edit->column1 && x < edit->column2)
1644 || (x >= edit->column2 && x < edit->column1) || c == '\n') {
1645 *s++ = c;
1646 (*l)++;
1647 }
1648 start++;
1649 }
1650 } else {
1651 *l = finish - start;
1652 while (start < finish)
1653 *s++ = edit_get_byte (edit, start++);
1654 }
1655 *s = 0;
1656 return r;
1657 }
1658
1659 /* save block, returns 1 on success */
1660 int
1661 edit_save_block (WEdit * edit, const char *filename, long start,
1662 long finish)
1663 {
1664 int len, file;
1665
1666 if ((file =
1667 mc_open (filename, O_CREAT | O_WRONLY | O_TRUNC,
1668 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH | O_BINARY)) == -1)
1669 return 0;
1670
1671 if (column_highlighting) {
1672 unsigned char *block, *p;
1673 int r;
1674 p = block = edit_get_block (edit, start, finish, &len);
1675 while (len) {
1676 r = mc_write (file, p, len);
1677 if (r < 0)
1678 break;
1679 p += r;
1680 len -= r;
1681 }
1682 g_free (block);
1683 } else {
1684 unsigned char *buf;
1685 int i = start, end;
1686 len = finish - start;
1687 buf = g_malloc (TEMP_BUF_LEN);
1688 while (start != finish) {
1689 end = min (finish, start + TEMP_BUF_LEN);
1690 for (; i < end; i++)
1691 buf[i - start] = edit_get_byte (edit, i);
1692 len -= mc_write (file, (char *) buf, end - start);
1693 start = end;
1694 }
1695 g_free (buf);
1696 }
1697 mc_close (file);
1698 if (len)
1699 return 0;
1700 return 1;
1701 }
1702
1703 /* copies a block to clipboard file */
1704 static int edit_save_block_to_clip_file (WEdit * edit, long start, long finish)
1705 {
1706 int ret;
1707 gchar *tmp;
1708 tmp = concat_dir_and_file (home_dir, EDIT_CLIP_FILE);
1709 ret = edit_save_block (edit, tmp, start, finish);
1710 g_free(tmp);
1711 return ret;
1712 }
1713
1714
1715 void edit_paste_from_history (WEdit *edit)
1716 {
1717 (void) edit;
1718 edit_error_dialog (_(" Error "), _(" This function is not implemented. "));
1719 }
1720
1721 int edit_copy_to_X_buf_cmd (WEdit * edit)
1722 {
1723 long start_mark, end_mark;
1724 if (eval_marks (edit, &start_mark, &end_mark))
1725 return 0;
1726 if (!edit_save_block_to_clip_file (edit, start_mark, end_mark)) {
1727 edit_error_dialog (_(" Copy to clipboard "), get_sys_error (_(" Unable to save to file. ")));
1728 return 1;
1729 }
1730 edit_mark_cmd (edit, 1);
1731 return 0;
1732 }
1733
1734 int edit_cut_to_X_buf_cmd (WEdit * edit)
1735 {
1736 long start_mark, end_mark;
1737 if (eval_marks (edit, &start_mark, &end_mark))
1738 return 0;
1739 if (!edit_save_block_to_clip_file (edit, start_mark, end_mark)) {
1740 edit_error_dialog (_(" Cut to clipboard "), _(" Unable to save to file. "));
1741 return 1;
1742 }
1743 edit_block_delete_cmd (edit);
1744 edit_mark_cmd (edit, 1);
1745 return 0;
1746 }
1747
1748 void edit_paste_from_X_buf_cmd (WEdit * edit)
1749 {
1750 gchar *tmp;
1751 tmp = concat_dir_and_file (home_dir, EDIT_CLIP_FILE);
1752 edit_insert_file (edit, tmp);
1753 g_free(tmp);
1754 }
1755
1756
1757 /*
1758 * Ask user for the line and go to that line.
1759 * Negative numbers mean line from the end (i.e. -1 is the last line).
1760 */
1761 void
1762 edit_goto_cmd (WEdit *edit)
1763 {
1764 char *f;
1765 static long line = 0; /* line as typed, saved as default */
1766 long l;
1767 char *error;
1768 char s[32];
1769
1770 g_snprintf (s, sizeof (s), "%ld", line);
1771 f = input_dialog (_(" Goto line "), _(" Enter line: "), MC_HISTORY_EDIT_GOTO_LINE,
1772 line ? s : "");
1773 if (!f)
1774 return;
1775
1776 if (!*f) {
1777 g_free (f);
1778 return;
1779 }
1780
1781 l = strtol (f, &error, 0);
1782 if (*error) {
1783 g_free (f);
1784 return;
1785 }
1786
1787 line = l;
1788 if (l < 0)
1789 l = edit->total_lines + l + 2;
1790 edit_move_display (edit, l - edit->num_widget_lines / 2 - 1);
1791 edit_move_to_line (edit, l - 1);
1792 edit->force |= REDRAW_COMPLETELY;
1793 g_free (f);
1794 }
1795
1796
1797 /* Return 1 on success */
1798 int
1799 edit_save_block_cmd (WEdit *edit)
1800 {
1801 long start_mark, end_mark;
1802 char *exp, *tmp;
1803
1804 if (eval_marks (edit, &start_mark, &end_mark))
1805 return 1;
1806
1807 tmp = concat_dir_and_file (home_dir, EDIT_CLIP_FILE);
1808 exp =
1809 input_expand_dialog (_(" Save Block "), _(" Enter file name: "),
1810 MC_HISTORY_EDIT_SAVE_BLOCK,
1811 tmp);
1812 g_free(tmp);
1813 edit_push_action (edit, KEY_PRESS + edit->start_display);
1814 if (exp) {
1815 if (!*exp) {
1816 g_free (exp);
1817 return 0;
1818 } else {
1819 if (edit_save_block (edit, exp, start_mark, end_mark)) {
1820 g_free (exp);
1821 edit->force |= REDRAW_COMPLETELY;
1822 return 1;
1823 } else {
1824 g_free (exp);
1825 edit_error_dialog (_(" Save Block "),
1826 get_sys_error (_
1827 (" Cannot save file. ")));
1828 }
1829 }
1830 }
1831 edit->force |= REDRAW_COMPLETELY;
1832 return 0;
1833 }
1834
1835
1836 /* returns 1 on success */
1837 int
1838 edit_insert_file_cmd (WEdit *edit)
1839 {
1840 gchar *tmp;
1841 char *exp;
1842
1843 tmp = concat_dir_and_file (home_dir, EDIT_CLIP_FILE);
1844 exp = input_expand_dialog (_(" Insert File "), _(" Enter file name: "),
1845 MC_HISTORY_EDIT_INSERT_FILE,
1846 tmp);
1847 g_free(tmp);
1848 edit_push_action (edit, KEY_PRESS + edit->start_display);
1849 if (exp) {
1850 if (!*exp) {
1851 g_free (exp);
1852 return 0;
1853 } else {
1854 if (edit_insert_file (edit, exp)) {
1855 g_free (exp);
1856 edit->force |= REDRAW_COMPLETELY;
1857 return 1;
1858 } else {
1859 g_free (exp);
1860 edit_error_dialog (_(" Insert File "),
1861 get_sys_error (_
1862 (" Cannot insert file. ")));
1863 }
1864 }
1865 }
1866 edit->force |= REDRAW_COMPLETELY;
1867 return 0;
1868 }
1869
1870 /* sorts a block, returns -1 on system fail, 1 on cancel and 0 on success */
1871 int edit_sort_cmd (WEdit * edit)
1872 {
1873 static char *old = 0;
1874 char *exp, *tmp;
1875 long start_mark, end_mark;
1876 int e;
1877
1878 if (eval_marks (edit, &start_mark, &end_mark)) {
1879 edit_error_dialog (_(" Sort block "), _(" You must first highlight a block of text. "));
1880 return 0;
1881 }
1882
1883 tmp = concat_dir_and_file (home_dir, EDIT_BLOCK_FILE);
1884 edit_save_block (edit, tmp, start_mark, end_mark);
1885 g_free(tmp);
1886
1887 exp = input_dialog (_(" Run Sort "),
1888 _(" Enter sort options (see manpage) separated by whitespace: "),
1889 MC_HISTORY_EDIT_SORT, (old != NULL) ? old : "");
1890
1891 if (!exp)
1892 return 1;
1893 g_free (old);
1894 old = exp;
1895 tmp = g_strconcat (" sort ", exp, " ", home_dir, PATH_SEP_STR EDIT_BLOCK_FILE, " > ",
1896 home_dir, PATH_SEP_STR EDIT_TEMP_FILE, (char *) NULL);
1897 e = system (tmp);
1898 g_free(tmp);
1899 if (e) {
1900 if (e == -1 || e == 127) {
1901 edit_error_dialog (_(" Sort "),
1902 get_sys_error (_(" Cannot execute sort command ")));
1903 } else {
1904 char q[8];
1905 sprintf (q, "%d ", e);
1906 tmp = g_strconcat (_(" Sort returned non-zero: "), q, (char *) NULL);
1907 edit_error_dialog (_(" Sort "), tmp);
1908 g_free(tmp);
1909 }
1910 return -1;
1911 }
1912
1913 edit->force |= REDRAW_COMPLETELY;
1914
1915 if (edit_block_delete_cmd (edit))
1916 return 1;
1917 tmp = concat_dir_and_file (home_dir, EDIT_TEMP_FILE);
1918 edit_insert_file (edit, tmp);
1919 g_free(tmp);
1920 return 0;
1921 }
1922
1923 /*
1924 * Ask user for a command, execute it and paste its output back to the
1925 * editor.
1926 */
1927 int
1928 edit_ext_cmd (WEdit *edit)
1929 {
1930 char *exp, *tmp;
1931 int e;
1932
1933 exp =
1934 input_dialog (_("Paste output of external command"),
1935 _("Enter shell command(s):"),
1936 MC_HISTORY_EDIT_PASTE_EXTCMD, NULL);
1937
1938 if (!exp)
1939 return 1;
1940
1941 tmp = g_strconcat (exp, " > ", home_dir, PATH_SEP_STR EDIT_TEMP_FILE, (char *) NULL);
1942 e = system (tmp);
1943 g_free(tmp);
1944 g_free (exp);
1945
1946 if (e) {
1947 edit_error_dialog (_("External command"),
1948 get_sys_error (_("Cannot execute command")));
1949 return -1;
1950 }
1951
1952 edit->force |= REDRAW_COMPLETELY;
1953 tmp = concat_dir_and_file (home_dir, EDIT_TEMP_FILE);
1954 edit_insert_file (edit, tmp);
1955 g_free(tmp);
1956 return 0;
1957 }
1958
1959 /* if block is 1, a block must be highlighted and the shell command
1960 processes it. If block is 0 the shell command is a straight system
1961 command, that just produces some output which is to be inserted */
1962 void
1963 edit_block_process_cmd (WEdit *edit, const char *shell_cmd, int block)
1964 {
1965 long start_mark, end_mark;
1966 char buf[BUFSIZ];
1967 FILE *script_home = NULL;
1968 FILE *script_src = NULL;
1969 FILE *block_file = NULL;
1970 gchar *o, *h, *b, *tmp;
1971 char *quoted_name = NULL;
1972
1973 o = g_strconcat (mc_home, shell_cmd, (char *) NULL); /* original source script */
1974 h = g_strconcat (home_dir, PATH_SEP_STR EDIT_DIR, shell_cmd, (char *) NULL); /* home script */
1975 b = concat_dir_and_file (home_dir, EDIT_BLOCK_FILE); /* block file */
1976
1977 if (!(script_home = fopen (h, "r"))) {
1978 if (!(script_home = fopen (h, "w"))) {
1979 tmp = g_strconcat (_("Error creating script:"), h, (char *) NULL);
1980 edit_error_dialog ("", get_sys_error (tmp));
1981 g_free(tmp);
1982 goto edit_block_process_cmd__EXIT;
1983 }
1984 if (!(script_src = fopen (o, "r"))) {
1985 o = g_strconcat (mc_home_alt, shell_cmd, (char *) NULL);
1986 if (!(script_src = fopen (o, "r"))) {
1987 fclose (script_home);
1988 unlink (h);
1989 tmp = g_strconcat (_("Error reading script:"), o, (char *) NULL);
1990 edit_error_dialog ("", get_sys_error (tmp));
1991 g_free(tmp);
1992 goto edit_block_process_cmd__EXIT;
1993 }
1994 }
1995 while (fgets (buf, sizeof (buf), script_src))
1996 fputs (buf, script_home);
1997 if (fclose (script_home)) {
1998 tmp = g_strconcat (_("Error closing script:"), h, (char *) NULL);
1999 edit_error_dialog ("", get_sys_error (tmp));
2000 g_free(tmp);
2001 goto edit_block_process_cmd__EXIT;
2002 }
2003 chmod (h, 0700);
2004 tmp = g_strconcat (_("Script created:"), h, (char *) NULL);
2005 edit_error_dialog ("", get_sys_error (tmp));
2006 g_free(tmp);
2007 }
2008
2009 open_error_pipe ();
2010
2011 if (block) { /* for marked block run indent formatter */
2012 if (eval_marks (edit, &start_mark, &end_mark)) {
2013 edit_error_dialog (_("Process block"),
2014 _
2015 (" You must first highlight a block of text. "));
2016 goto edit_block_process_cmd__EXIT;
2017 }
2018 edit_save_block (edit, b, start_mark, end_mark);
2019 quoted_name = name_quote (edit->filename, 0);
2020 /*
2021 * Run script.
2022 * Initial space is to avoid polluting bash history.
2023 * Arguments:
2024 * $1 - name of the edited file (to check its extension etc).
2025 * $2 - file containing the current block.
2026 * $3 - file where error messages should be put
2027 * (for compatibility with old scripts).
2028 */
2029 tmp = g_strconcat (" ", home_dir, PATH_SEP_STR EDIT_DIR, shell_cmd, " ", quoted_name,
2030 " ", home_dir, PATH_SEP_STR EDIT_BLOCK_FILE " /dev/null", (char *) NULL);
2031 system (tmp);
2032 g_free(tmp);
2033 } else {
2034 /*
2035 * No block selected, just execute the command for the file.
2036 * Arguments:
2037 * $1 - name of the edited file.
2038 */
2039 tmp = g_strconcat (" ", home_dir, PATH_SEP_STR EDIT_DIR, shell_cmd, " ",
2040 quoted_name, (char *) NULL);
2041 system (tmp);
2042 g_free(tmp);
2043 }
2044 g_free (quoted_name);
2045 close_error_pipe (D_NORMAL, NULL);
2046
2047 edit_refresh_cmd (edit);
2048 edit->force |= REDRAW_COMPLETELY;
2049
2050 /* insert result block */
2051 if (block) {
2052 if (edit_block_delete_cmd (edit))
2053 goto edit_block_process_cmd__EXIT;
2054 edit_insert_file (edit, b);
2055 if ((block_file = fopen (b, "w")))
2056 fclose (block_file);
2057 goto edit_block_process_cmd__EXIT;
2058 }
2059 edit_block_process_cmd__EXIT:
2060 g_free(b);
2061 g_free(h);
2062 g_free(o);
2063 return;
2064 }
2065
2066 /* prints at the cursor */
2067 /* returns the number of chars printed */
2068 int edit_print_string (WEdit * e, const char *s)
2069 {
2070 int i = 0;
2071 while (s[i])
2072 edit_execute_cmd (e, -1, (unsigned char) s[i++]);
2073 e->force |= REDRAW_COMPLETELY;
2074 edit_update_screen (e);
2075 return i;
2076 }
2077
2078
2079 static void pipe_mail (WEdit *edit, char *to, char *subject, char *cc)
2080 {
2081 FILE *p = 0;
2082 char *s;
2083
2084 to = name_quote (to, 0);
2085 subject = name_quote (subject, 0);
2086 cc = name_quote (cc, 0);
2087 s = g_strconcat ("mail -s ", subject, *cc ? " -c " : "" , cc, " ", to, (char *) NULL);
2088 g_free (to);
2089 g_free (subject);
2090 g_free (cc);
2091
2092 if (s) {
2093 p = popen (s, "w");
2094 g_free (s);
2095 }
2096
2097 if (p) {
2098 long i;
2099 for (i = 0; i < edit->last_byte; i++)
2100 fputc (edit_get_byte (edit, i), p);
2101 pclose (p);
2102 }
2103 }
2104
2105 #define MAIL_DLG_HEIGHT 12
2106
2107 void edit_mail_dialog (WEdit * edit)
2108 {
2109 char *tmail_to;
2110 char *tmail_subject;
2111 char *tmail_cc;
2112
2113 static char *mail_cc_last = 0;
2114 static char *mail_subject_last = 0;
2115 static char *mail_to_last = 0;
2116
2117 QuickDialog Quick_input =
2118 {50, MAIL_DLG_HEIGHT, -1, 0, N_(" Mail "),
2119 "[Input Line Keys]", 0, 0};
2120
2121 QuickWidget quick_widgets[] =
2122 {
2123 {quick_button, 6, 10, 9, MAIL_DLG_HEIGHT, N_("&Cancel"), 0, B_CANCEL, 0,
2124 0, NULL, NULL, NULL},
2125 {quick_button, 2, 10, 9, MAIL_DLG_HEIGHT, N_("&OK"), 0, B_ENTER, 0,
2126 0, NULL, NULL, NULL},
2127 {quick_input, 3, 50, 8, MAIL_DLG_HEIGHT, "", 44, 0, 0,
2128 0, "mail-dlg-input", NULL, NULL},
2129 {quick_label, 2, 50, 7, MAIL_DLG_HEIGHT, N_(" Copies to"), 0, 0, 0,
2130 0, 0, NULL, NULL},
2131 {quick_input, 3, 50, 6, MAIL_DLG_HEIGHT, "", 44, 0, 0,
2132 0, "mail-dlg-input-2", NULL, NULL},
2133 {quick_label, 2, 50, 5, MAIL_DLG_HEIGHT, N_(" Subject"), 0, 0, 0,
2134 0, 0, NULL, NULL},
2135 {quick_input, 3, 50, 4, MAIL_DLG_HEIGHT, "", 44, 0, 0,
2136 0, "mail-dlg-input-3", NULL, NULL},
2137 {quick_label, 2, 50, 3, MAIL_DLG_HEIGHT, N_(" To"), 0, 0, 0,
2138 0, 0, NULL, NULL},
2139 {quick_label, 2, 50, 2, MAIL_DLG_HEIGHT, N_(" mail -s <subject> -c <cc> <to>"), 0, 0, 0,
2140 0, 0, NULL, NULL},
2141 NULL_QuickWidget};
2142
2143 quick_widgets[2].str_result = &tmail_cc;
2144 quick_widgets[2].text = mail_cc_last ? mail_cc_last : "";
2145 quick_widgets[4].str_result = &tmail_subject;
2146 quick_widgets[4].text = mail_subject_last ? mail_subject_last : "";
2147 quick_widgets[6].str_result = &tmail_to;
2148 quick_widgets[6].text = mail_to_last ? mail_to_last : "";
2149
2150 Quick_input.widgets = quick_widgets;
2151
2152 if (quick_dialog (&Quick_input) != B_CANCEL) {
2153 g_free (mail_cc_last);
2154 g_free (mail_subject_last);
2155 g_free (mail_to_last);
2156 mail_cc_last = tmail_cc;
2157 mail_subject_last = tmail_subject;
2158 mail_to_last = tmail_to;
2159 pipe_mail (edit, mail_to_last, mail_subject_last, mail_cc_last);
2160 }
2161 }
2162
2163
2164 /*******************/
2165 /* Word Completion */
2166 /*******************/
2167
2168
2169 /* find first character of current word */
2170 static int edit_find_word_start (WEdit *edit, long *word_start, int *word_len)
2171 {
2172 int i, c, last;
2173
2174 /* return if at begin of file */
2175 if (edit->curs1 <= 0)
2176 return 0;
2177
2178 c = (unsigned char) edit_get_byte (edit, edit->curs1 - 1);
2179 /* return if not at end or in word */
2180 if (isspace (c) || !(isalnum (c) || c == '_'))
2181 return 0;
2182
2183 /* search start of word to be completed */
2184 for (i = 2;; i++) {
2185 /* return if at begin of file */
2186 if (edit->curs1 - i < 0)
2187 return 0;
2188
2189 last = c;
2190 c = (unsigned char) edit_get_byte (edit, edit->curs1 - i);
2191
2192 if (!(isalnum (c) || c == '_')) {
2193 /* return if word starts with digit */
2194 if (isdigit (last))
2195 return 0;
2196
2197 *word_start = edit->curs1 - (i - 1); /* start found */
2198 *word_len = i - 1;
2199 break;
2200 }
2201 }
2202 /* success */
2203 return 1;
2204 }
2205
2206
2207 /* (re)set search parameters to the given values */
2208 static void edit_set_search_parameters (WEdit *edit, int replace_mode, int rb, int rc)
2209 {
2210 edit->replace_mode = replace_mode;
2211 edit->replace_backwards = rb;
2212 edit->replace_case = rc;
2213 }
2214
2215
2216 #define MAX_WORD_COMPLETIONS 100 /* in listbox */
2217
2218 /* collect the possible completions */
2219 static int
2220 edit_collect_completions (WEdit *edit, long start, int word_len,
2221 char *match_expr, struct selection *compl,
2222 int *num)
2223 {
2224 int len = 0, max_len = 0, i, skip;
2225 unsigned char *bufpos;
2226
2227 (void) match_expr;
2228 /* collect max MAX_WORD_COMPLETIONS completions */
2229 while (*num < MAX_WORD_COMPLETIONS) {
2230 /* get next match */
2231 /*
2232 start =
2233 edit_find (start - 1, (unsigned char *) match_expr, &len,
2234 edit->last_byte, edit_get_byte_ptr, (void *) edit, 0);
2235 */
2236 start = -1;
2237 /* not matched */
2238 if (start < 0)
2239 break;
2240
2241 /* add matched completion if not yet added */
2242 bufpos =
2243 &edit->
2244 buffers1[start >> S_EDIT_BUF_SIZE][start & M_EDIT_BUF_SIZE];
2245 skip = 0;
2246 for (i = 0; i < *num; i++) {
2247 if (strncmp
2248 ((char *) &compl[i].text[word_len],
2249 (char *) &bufpos[word_len], max (len,
2250 compl[i].len) -
2251 word_len) == 0) {
2252 skip = 1;
2253 break; /* skip it, already added */
2254 }
2255 }
2256 if (skip)
2257 continue;
2258
2259 compl[*num].text = g_malloc (len + 1);
2260 compl[*num].len = len;
2261 for (i = 0; i < len; i++)
2262 compl[*num].text[i] = *(bufpos + i);
2263 compl[*num].text[i] = '\0';
2264 (*num)++;
2265
2266 /* note the maximal length needed for the completion dialog */
2267 if (len > max_len)
2268 max_len = len;
2269 }
2270 return max_len;
2271 }
2272
2273 /*
2274 * Complete current word using regular expression search
2275 * backwards beginning at the current cursor position.
2276 */
2277 void
2278 edit_complete_word_cmd (WEdit *edit)
2279 {
2280 int word_len = 0, i, num_compl = 0, max_len;
2281 long word_start = 0;
2282 unsigned char *bufpos;
2283 char *match_expr;
2284 struct selection compl[MAX_WORD_COMPLETIONS]; /* completions */
2285
2286 /* don't want to disturb another search */
2287 int old_replace_mode = edit->replace_mode;
2288 int old_rb = edit->replace_backwards;
2289 int old_rc = edit->replace_case;
2290
2291 /* search start of word to be completed */
2292 if (!edit_find_word_start (edit, &word_start, &word_len))
2293 return;
2294
2295 /* prepare match expression */
2296 bufpos = &edit->buffers1[word_start >> S_EDIT_BUF_SIZE]
2297 [word_start & M_EDIT_BUF_SIZE];
2298
2299 match_expr = g_strdup_printf ("%.*s[a-zA-Z_0-9]+", word_len, bufpos);
2300 /* init search: backward, regexp, whole word, case sensitive */
2301 edit_set_search_parameters (edit, 0, 1, 1);
2302
2303 /* collect the possible completions */
2304 /* start search from curs1 down to begin of file */
2305 max_len =
2306 edit_collect_completions (edit, word_start, word_len, match_expr,
2307 (struct selection *) &compl, &num_compl);
2308
2309 if (num_compl > 0) {
2310 /* insert completed word if there is only one match */
2311 if (num_compl == 1) {
2312 for (i = word_len; i < compl[0].len; i++)
2313 edit_insert (edit, *(compl[0].text + i));
2314 }
2315 /* more than one possible completion => ask the user */
2316 else {
2317 /* !!! usually only a beep is expected and when <ALT-TAB> is !!! */
2318 /* !!! pressed again the selection dialog pops up, but that !!! */
2319 /* !!! seems to require a further internal state !!! */
2320 /*beep (); */
2321
2322 /* let the user select the preferred completion */
2323 editcmd_dialog_completion_show (edit, max_len, word_len,
2324 (struct selection *) &compl,
2325 num_compl);
2326 }
2327 }
2328
2329 g_free (match_expr);
2330 /* release memory before return */
2331 for (i = 0; i < num_compl; i++)
2332 g_free (compl[i].text);
2333
2334 /* restore search parameters */
2335 edit_set_search_parameters (edit, old_replace_mode, old_rb, old_rc);
2336 }
2337
2338 void
2339 edit_select_codepage_cmd (WEdit *edit)
2340 {
2341 #ifdef HAVE_CHARSET
2342 if (do_select_codepage ()) {
2343 const char *cp_id;
2344
2345 cp_id = get_codepage_id (source_codepage >= 0 ?
2346 source_codepage : display_codepage);
2347
2348 if (cp_id != NULL)
2349 edit->utf8 = str_isutf8 (cp_id);
2350 }
2351
2352 edit->force = REDRAW_COMPLETELY;
2353 edit_refresh_cmd (edit);
2354 #endif
2355 }
2356
2357 void
2358 edit_insert_literal_cmd (WEdit *edit)
2359 {
2360 int char_for_insertion =
2361 editcmd_dialog_raw_key_query (_(" Insert Literal "),
2362 _(" Press any key: "), 0);
2363 edit_execute_key_command (edit, -1,
2364 ascii_alpha_to_cntrl (char_for_insertion));
2365 }
2366
2367 void
2368 edit_execute_macro_cmd (WEdit *edit)
2369 {
2370 int command =
2371 CK_Macro (editcmd_dialog_raw_key_query
2372 (_(" Execute Macro "), _(" Press macro hotkey: "),
2373 1));
2374 if (command == CK_Macro (0))
2375 command = CK_Insert_Char;
2376
2377 edit_execute_key_command (edit, command, -1);
2378 }
2379
2380 void
2381 edit_begin_end_macro_cmd(WEdit *edit)
2382 {
2383 int command;
2384
2385 /* edit is a pointer to the widget */
2386 if (edit) {
2387 command =
2388 edit->macro_i <
2389 0 ? CK_Begin_Record_Macro : CK_End_Record_Macro;
2390 edit_execute_key_command (edit, command, -1);
2391 }
2392 }
2393
2394 int
2395 edit_load_forward_cmd (WEdit *edit)
2396 {
2397 if (edit->modified) {
2398 if (edit_query_dialog2
2399 (_("Warning"),
2400 _(" Current text was modified without a file save. \n"
2401 " Continue discards these changes. "), _("C&ontinue"),
2402 _("&Cancel"))) {
2403 edit->force |= REDRAW_COMPLETELY;
2404 return 0;
2405 }
2406 }
2407 if ( edit_stack_iterator + 1 < MAX_HISTORY_MOVETO ) {
2408 if ( edit_history_moveto[edit_stack_iterator + 1].line < 1 ) {
2409 return 1;
2410 }
2411 edit_stack_iterator++;
2412 if ( edit_history_moveto[edit_stack_iterator].filename ) {
2413 edit_reload_line (edit, edit_history_moveto[edit_stack_iterator].filename,
2414 edit_history_moveto[edit_stack_iterator].line);
2415 return 0;
2416 } else {
2417 return 1;
2418 }
2419 } else {
2420 return 1;
2421 }
2422 }
2423
2424 int
2425 edit_load_back_cmd (WEdit *edit)
2426 {
2427 if (edit->modified) {
2428 if (edit_query_dialog2
2429 (_("Warning"),
2430 _(" Current text was modified without a file save. \n"
2431 " Continue discards these changes. "), _("C&ontinue"),
2432 _("&Cancel"))) {
2433 edit->force |= REDRAW_COMPLETELY;
2434 return 0;
2435 }
2436 }
2437 if ( edit_stack_iterator > 0 ) {
2438 edit_stack_iterator--;
2439 if ( edit_history_moveto[edit_stack_iterator].filename ) {
2440 edit_reload_line (edit, edit_history_moveto[edit_stack_iterator].filename,
2441 edit_history_moveto[edit_stack_iterator].line);
2442 return 0;
2443 } else {
2444 return 1;
2445 }
2446 } else {
2447 return 1;
2448 }
2449 }
2450
2451 void
2452 edit_get_match_keyword_cmd (WEdit *edit)
2453 {
2454 int word_len = 0;
2455 int num_def = 0;
2456 int max_len = 0;
2457 int i;
2458 long word_start = 0;
2459 unsigned char *bufpos;
2460 char *match_expr;
2461 char *path = NULL;
2462 char *ptr = NULL;
2463 char *tagfile = NULL;
2464
2465 etags_hash_t def_hash[MAX_DEFINITIONS];
2466
2467 for ( i = 0; i < MAX_DEFINITIONS; i++) {
2468 def_hash[i].filename = NULL;
2469 }
2470
2471 /* search start of word to be completed */
2472 if (!edit_find_word_start (edit, &word_start, &word_len))
2473 return;
2474
2475 /* prepare match expression */
2476 bufpos = &edit->buffers1[word_start >> S_EDIT_BUF_SIZE]
2477 [word_start & M_EDIT_BUF_SIZE];
2478 match_expr = g_strdup_printf ("%.*s", word_len, bufpos);
2479
2480 ptr = g_get_current_dir ();
2481 path = g_strconcat (ptr, G_DIR_SEPARATOR_S, (char *) NULL);
2482 g_free (ptr);
2483
2484 /* Recursive search file 'TAGS' in parent dirs */
2485 do {
2486 ptr = g_path_get_dirname (path);
2487 g_free(path); path = ptr;
2488 g_free (tagfile);
2489 tagfile = g_build_filename (path, TAGS_NAME, (char *) NULL);
2490 if ( exist_file (tagfile) )
2491 break;
2492 } while (strcmp( path, G_DIR_SEPARATOR_S) != 0);
2493
2494 if (tagfile){
2495 num_def = etags_set_definition_hash(tagfile, path, match_expr, (etags_hash_t *) &def_hash);
2496 g_free (tagfile);
2497 }
2498 g_free (path);
2499
2500 max_len = MAX_WIDTH_DEF_DIALOG;
2501 word_len = 0;
2502 if ( num_def > 0 ) {
2503 editcmd_dialog_select_definition_show (edit, match_expr, max_len, word_len,
2504 (etags_hash_t *) &def_hash,
2505 num_def);
2506 }
2507 g_free (match_expr);
2508 }
2509
2510 void
2511 edit_move_block_to_right (WEdit * edit)
2512 {
2513 long start_mark, end_mark;
2514 long cur_bol, start_bol;
2515
2516 if ( eval_marks (edit, &start_mark, &end_mark) )
2517 return;
2518
2519 start_bol = edit_bol (edit, start_mark);
2520 cur_bol = edit_bol (edit, end_mark - 1);
2521 do {
2522 edit_cursor_move (edit, cur_bol - edit->curs1);
2523 if ( option_fill_tabs_with_spaces ) {
2524 if ( option_fake_half_tabs ) {
2525 insert_spaces_tab (edit, 1);
2526 } else {
2527 insert_spaces_tab (edit, 0);
2528 }
2529 } else {
2530 edit_insert (edit, '\t');
2531 }
2532 edit_cursor_move (edit, edit_bol (edit, cur_bol) - edit->curs1);
2533 if ( cur_bol == 0 ) {
2534 break;
2535 }
2536 cur_bol = edit_bol (edit, cur_bol - 1);
2537 } while (cur_bol >= start_bol) ;
2538 edit->force |= REDRAW_PAGE;
2539 }
2540
2541 void
2542 edit_move_block_to_left (WEdit * edit)
2543 {
2544 long start_mark, end_mark;
2545 long cur_bol, start_bol;
2546 int i, del_tab_width;
2547 int next_char;
2548
2549 if ( eval_marks (edit, &start_mark, &end_mark) )
2550 return;
2551
2552 start_bol = edit_bol (edit, start_mark);
2553 cur_bol = edit_bol (edit, end_mark - 1);
2554 do {
2555 edit_cursor_move (edit, cur_bol - edit->curs1);
2556 if (option_fake_half_tabs) {
2557 del_tab_width = HALF_TAB_SIZE;
2558 } else {
2559 del_tab_width = option_tab_spacing;
2560 }
2561 next_char = edit_get_byte (edit, edit->curs1);
2562 if ( next_char == '\t' ) {
2563 edit_delete (edit, 1);
2564 } else if ( next_char == ' ' ) {
2565 for (i = 1; i <= del_tab_width; i++) {
2566 if ( next_char == ' ' ) {
2567 edit_delete (edit, 1);
2568 }
2569 next_char = edit_get_byte (edit, edit->curs1);
2570 }
2571 }
2572 if ( cur_bol == 0 ) {
2573 break;
2574 }
2575 cur_bol = edit_bol (edit, cur_bol - 1);
2576 } while (cur_bol >= start_bol) ;
2577 edit->force |= REDRAW_PAGE;
2578 }
Midnight Commander