edit/editcmd.c

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