src/editor/editcmd.c

   1 /*
   2    Editor high level editing commands
   3
   4    Copyright (C) 1996, 1997, 1998, 2001, 2002, 2003, 2004, 2005, 2006,
   5    2007, 2011, 2012
   6    The Free Software Foundation, Inc.
   7
   8    Written by:
   9    Paul Sheer, 1996, 1997
  10    Andrew Borodin <aborodin@vmail.ru>, 2012
  11    Ilia Maslakov <il.smind@gmail.com>, 2012
  12
  13    This file is part of the Midnight Commander.
  14
  15    The Midnight Commander is free software: you can redistribute it
  16    and/or modify it under the terms of the GNU General Public License as
  17    published by the Free Software Foundation, either version 3 of the License,
  18    or (at your option) any later version.
  19
  20    The Midnight Commander is distributed in the hope that it will be useful,
  21    but WITHOUT ANY WARRANTY; without even the implied warranty of
  22    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23    GNU General Public License for more details.
  24
  25    You should have received a copy of the GNU General Public License
  26    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  27  */
  28
  29 /** \file
  30  *  \brief Source: editor high level editing commands
  31  *  \author Paul Sheer
  32  *  \date 1996, 1997
  33  */
  34
  35 /* #define PIPE_BLOCKS_SO_READ_BYTE_BY_BYTE */
  36
  37 #include <config.h>
  38
  39 #ifdef HAVE_ASSERT_H
  40 #include <assert.h>
  41 #endif
  42 #include <ctype.h>
  43
  44 #include <stdio.h>
  45 #include <stdarg.h>
  46 #include <sys/types.h>
  47 #include <unistd.h>
  48 #include <string.h>
  49 #include <errno.h>
  50 #include <sys/stat.h>
  51 #include <stdlib.h>
  52 #include <fcntl.h>
  53
  54 #include "lib/global.h"
  55 #include "lib/tty/tty.h"
  56 #include "lib/tty/key.h"        /* XCTRL */
  57 #include "lib/mcconfig.h"
  58 #include "lib/skin.h"
  59 #include "lib/strutil.h"        /* utf string functions */
  60 #include "lib/lock.h"
  61 #include "lib/util.h"           /* tilde_expand() */
  62 #include "lib/vfs/vfs.h"
  63 #include "lib/widget.h"
  64 #include "lib/event.h"          /* mc_event_raise() */
  65 #ifdef HAVE_CHARSET
  66 #include "lib/charsets.h"
  67 #endif
  68
  69 #include "src/history.h"
  70 #include "src/setup.h"          /* option_tab_spacing */
  71 #ifdef HAVE_CHARSET
  72 #include "src/selcodepage.h"
  73 #endif
  74 #include "src/keybind-defaults.h"
  75 #include "src/util.h"           /* check_for_default() */
  76 #include "src/filemanager/layout.h"     /* mc_refresh()  */
  77
  78 #include "edit-impl.h"
  79 #include "editwidget.h"
  80 #include "editcmd_dialogs.h"
  81 #ifdef HAVE_ASPELL
  82 #include "spell.h"
  83 #include "spell_dialogs.h"
  84 #endif
  85 #include "etags.h"
  86
  87 /*** global variables ****************************************************************************/
  88
  89 /* search and replace: */
  90 int search_create_bookmark = FALSE;
  91
  92 /* queries on a save */
  93 int edit_confirm_save = 1;
  94
  95 /*** file scope macro definitions ****************************************************************/
  96
  97 #define space_width 1
  98
  99 #define TEMP_BUF_LEN 1024
 100
 101 #define INPUT_INDEX 9
 102
 103 /* thanks to  Liviu Daia <daia@stoilow.imar.ro>  for getting this
 104    (and the above) routines to work properly - paul */
 105
 106 #define is_digit(x) ((x) >= '0' && (x) <= '9')
 107
 108 #define MAX_WORD_COMPLETIONS 100        /* in listbox */
 109
 110 /*** file scope type declarations ****************************************************************/
 111
 112 /*** file scope variables ************************************************************************/
 113
 114 static unsigned long edit_save_mode_radio_id, edit_save_mode_input_id;
 115
 116 /* --------------------------------------------------------------------------------------------- */
 117 /*** file scope functions ************************************************************************/
 118 /* --------------------------------------------------------------------------------------------- */
 119
 120 static cb_ret_t
 121 edit_save_mode_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
 122 {
 123     switch (msg)
 124     {
 125     case MSG_ACTION:
 126         if (sender != NULL && sender->id == edit_save_mode_radio_id)
 127         {
 128             Widget *ww;
 129
 130             ww = dlg_find_by_id (DIALOG (w), edit_save_mode_input_id);
 131             widget_disable (ww, RADIO (sender)->sel != 2);
 132             return MSG_HANDLED;
 133         }
 134
 135         return MSG_NOT_HANDLED;
 136
 137     default:
 138         return dlg_default_callback (w, sender, msg, parm, data);
 139     }
 140 }
 141
 142 /* --------------------------------------------------------------------------------------------- */
 143
 144 /*  If 0 (quick save) then  a) create/truncate <filename> file,
 145    b) save to <filename>;
 146    if 1 (safe save) then   a) save to <tempnam>,
 147    b) rename <tempnam> to <filename>;
 148    if 2 (do backups) then  a) save to <tempnam>,
 149    b) rename <filename> to <filename.backup_ext>,
 150    c) rename <tempnam> to <filename>. */
 151
 152 /* returns 0 on error, -1 on abort */
 153
 154 static int
 155 edit_save_file (WEdit * edit, const vfs_path_t * filename_vpath)
 156 {
 157     char *p;
 158     gchar *tmp;
 159     off_t filelen = 0;
 160     int this_save_mode, fd = -1;
 161     vfs_path_t *real_filename_vpath;
 162     vfs_path_t *savename_vpath = NULL;
 163     const char *start_filename;
 164     const vfs_path_element_t *vpath_element;
 165
 166     vpath_element = vfs_path_get_by_index (filename_vpath, 0);
 167     if (vpath_element == NULL)
 168         return 0;
 169
 170     start_filename = vpath_element->path;
 171     if (*start_filename == '\0')
 172         return 0;
 173
 174     if (*start_filename != PATH_SEP && edit->dir_vpath != NULL)
 175     {
 176         real_filename_vpath = vfs_path_append_vpath_new (edit->dir_vpath, filename_vpath, NULL);
 177     }
 178     else
 179     {
 180         real_filename_vpath = vfs_path_clone (filename_vpath);
 181     }
 182
 183     this_save_mode = option_save_mode;
 184     if (this_save_mode != EDIT_QUICK_SAVE)
 185     {
 186         if (!vfs_file_is_local (real_filename_vpath)
 187             || (fd = mc_open (real_filename_vpath, O_RDONLY | O_BINARY)) == -1)
 188         {
 189             /*
 190              * The file does not exists yet, so no safe save or
 191              * backup are necessary.
 192              */
 193             this_save_mode = EDIT_QUICK_SAVE;
 194         }
 195         if (fd != -1)
 196             mc_close (fd);
 197     }
 198
 199     if (this_save_mode == EDIT_QUICK_SAVE && !edit->skip_detach_prompt)
 200     {
 201         int rv;
 202         struct stat sb;
 203
 204         rv = mc_stat (real_filename_vpath, &sb);
 205         if (rv == 0 && sb.st_nlink > 1)
 206         {
 207             rv = edit_query_dialog3 (_("Warning"),
 208                                      _("File has hard-links. Detach before saving?"),
 209                                      _("&Yes"), _("&No"), _("&Cancel"));
 210             switch (rv)
 211             {
 212             case 0:
 213                 this_save_mode = EDIT_SAFE_SAVE;
 214                 /* fallthrough */
 215             case 1:
 216                 edit->skip_detach_prompt = 1;
 217                 break;
 218             default:
 219                 vfs_path_free (real_filename_vpath);
 220                 return -1;
 221             }
 222         }
 223
 224         /* Prevent overwriting changes from other editor sessions. */
 225         if (rv == 0 && edit->stat1.st_mtime != 0 && edit->stat1.st_mtime != sb.st_mtime)
 226         {
 227             /* The default action is "Cancel". */
 228             query_set_sel (1);
 229
 230             rv = edit_query_dialog2 (_("Warning"),
 231                                      _("The file has been modified in the meantime. Save anyway?"),
 232                                      _("&Yes"), _("&Cancel"));
 233             if (rv != 0)
 234             {
 235                 vfs_path_free (real_filename_vpath);
 236                 return -1;
 237             }
 238         }
 239     }
 240
 241     if (this_save_mode != EDIT_QUICK_SAVE)
 242     {
 243         char *savedir, *saveprefix;
 244
 245         savedir = vfs_path_tokens_get (real_filename_vpath, 0, -1);
 246         if (savedir == NULL)
 247             savedir = g_strdup (".");
 248
 249         /* Token-related function never return leading slash, so we need add it manually */
 250         saveprefix = mc_build_filename ("/", savedir, "cooledit", NULL);
 251         g_free (savedir);
 252         fd = mc_mkstemps (&savename_vpath, saveprefix, NULL);
 253         g_free (saveprefix);
 254         if (savename_vpath == NULL)
 255         {
 256             vfs_path_free (real_filename_vpath);
 257             return 0;
 258         }
 259         /* FIXME:
 260          * Close for now because mc_mkstemps use pure open system call
 261          * to create temporary file and it needs to be reopened by
 262          * VFS-aware mc_open().
 263          */
 264         close (fd);
 265     }
 266     else
 267         savename_vpath = vfs_path_clone (real_filename_vpath);
 268
 269     (void) mc_chown (savename_vpath, edit->stat1.st_uid, edit->stat1.st_gid);
 270     (void) mc_chmod (savename_vpath, edit->stat1.st_mode);
 271
 272     fd = mc_open (savename_vpath, O_CREAT | O_WRONLY | O_TRUNC | O_BINARY, edit->stat1.st_mode);
 273     if (fd == -1)
 274         goto error_save;
 275
 276     /* pipe save */
 277     p = edit_get_write_filter (savename_vpath, real_filename_vpath);
 278     if (p != NULL)
 279     {
 280         FILE *file;
 281
 282         mc_close (fd);
 283         file = (FILE *) popen (p, "w");
 284
 285         if (file)
 286         {
 287             filelen = edit_write_stream (edit, file);
 288 #if 1
 289             pclose (file);
 290 #else
 291             if (pclose (file) != 0)
 292             {
 293                 tmp = g_strdup_printf (_("Error writing to pipe: %s"), p);
 294                 edit_error_dialog (_("Error"), tmp);
 295                 g_free (tmp);
 296                 g_free (p);
 297                 goto error_save;
 298             }
 299 #endif
 300         }
 301         else
 302         {
 303             tmp = g_strdup_printf (_("Cannot open pipe for writing: %s"), p);
 304             edit_error_dialog (_("Error"), get_sys_error (tmp));
 305             g_free (p);
 306             g_free (tmp);
 307             goto error_save;
 308         }
 309         g_free (p);
 310     }
 311     else if (edit->lb == LB_ASIS)
 312     {                           /* do not change line breaks */
 313         off_t buf;
 314         buf = 0;
 315         filelen = edit->last_byte;
 316         while (buf <= (edit->curs1 >> S_EDIT_BUF_SIZE) - 1)
 317         {
 318             if (mc_write (fd, (char *) edit->buffers1[buf], EDIT_BUF_SIZE) != EDIT_BUF_SIZE)
 319             {
 320                 mc_close (fd);
 321                 goto error_save;
 322             }
 323             buf++;
 324         }
 325         if (mc_write
 326             (fd, (char *) edit->buffers1[buf],
 327              edit->curs1 & M_EDIT_BUF_SIZE) != (edit->curs1 & M_EDIT_BUF_SIZE))
 328         {
 329             filelen = -1;
 330         }
 331         else if (edit->curs2)
 332         {
 333             edit->curs2--;
 334             buf = (edit->curs2 >> S_EDIT_BUF_SIZE);
 335             if (mc_write
 336                 (fd,
 337                  (char *) edit->buffers2[buf] + EDIT_BUF_SIZE -
 338                  (edit->curs2 & M_EDIT_BUF_SIZE) - 1,
 339                  1 + (edit->curs2 & M_EDIT_BUF_SIZE)) != 1 + (edit->curs2 & M_EDIT_BUF_SIZE))
 340             {
 341                 filelen = -1;
 342             }
 343             else
 344             {
 345                 while (--buf >= 0)
 346                 {
 347                     if (mc_write (fd, (char *) edit->buffers2[buf], EDIT_BUF_SIZE) != EDIT_BUF_SIZE)
 348                     {
 349                         filelen = -1;
 350                         break;
 351                     }
 352                 }
 353             }
 354             edit->curs2++;
 355         }
 356         if (mc_close (fd))
 357             goto error_save;
 358
 359         /* Update the file information, especially the mtime. */
 360         if (mc_stat (savename_vpath, &edit->stat1) == -1)
 361             goto error_save;
 362     }
 363     else
 364     {                           /* change line breaks */
 365         FILE *file;
 366         const vfs_path_element_t *path_element;
 367
 368         mc_close (fd);
 369
 370         path_element = vfs_path_get_by_index (savename_vpath, -1);
 371         file = (FILE *) fopen (path_element->path, "w");
 372         if (file != NULL)
 373         {
 374             filelen = edit_write_stream (edit, file);
 375             fclose (file);
 376         }
 377         else
 378         {
 379             char *msg;
 380
 381             msg = g_strdup_printf (_("Cannot open file for writing: %s"), path_element->path);
 382             edit_error_dialog (_("Error"), msg);
 383             g_free (msg);
 384             goto error_save;
 385         }
 386     }
 387
 388     if (filelen != edit->last_byte)
 389         goto error_save;
 390
 391     if (this_save_mode == EDIT_DO_BACKUP)
 392     {
 393         char *tmp_store_filename;
 394         vfs_path_element_t *last_vpath_element;
 395         vfs_path_t *tmp_vpath;
 396         gboolean ok;
 397
 398 #ifdef HAVE_ASSERT_H
 399         assert (option_backup_ext != NULL);
 400 #endif
 401         /* add backup extention to the path */
 402         tmp_vpath = vfs_path_clone (real_filename_vpath);
 403         last_vpath_element = (vfs_path_element_t *) vfs_path_get_by_index (tmp_vpath, -1);
 404         tmp_store_filename = last_vpath_element->path;
 405         last_vpath_element->path = g_strdup_printf ("%s%s", tmp_store_filename, option_backup_ext);
 406         g_free (tmp_store_filename);
 407
 408         ok = (mc_rename (real_filename_vpath, tmp_vpath) != -1);
 409         vfs_path_free (tmp_vpath);
 410         if (!ok)
 411             goto error_save;
 412     }
 413
 414     if (this_save_mode != EDIT_QUICK_SAVE)
 415         if (mc_rename (savename_vpath, real_filename_vpath) == -1)
 416             goto error_save;
 417
 418     vfs_path_free (real_filename_vpath);
 419     vfs_path_free (savename_vpath);
 420     return 1;
 421   error_save:
 422     /*  FIXME: Is this safe ?
 423      *  if (this_save_mode != EDIT_QUICK_SAVE)
 424      *      mc_unlink (savename);
 425      */
 426     vfs_path_free (real_filename_vpath);
 427     vfs_path_free (savename_vpath);
 428     return 0;
 429 }
 430
 431 /* --------------------------------------------------------------------------------------------- */
 432
 433 static gboolean
 434 edit_check_newline (WEdit * edit)
 435 {
 436     return !(option_check_nl_at_eof && edit->last_byte > 0
 437              && edit_get_byte (edit, edit->last_byte - 1) != '\n'
 438              && edit_query_dialog2 (_("Warning"),
 439                                     _("The file you are saving is not finished with a newline"),
 440                                     _("C&ontinue"), _("&Cancel")));
 441 }
 442
 443 /* --------------------------------------------------------------------------------------------- */
 444
 445 static vfs_path_t *
 446 edit_get_save_file_as (WEdit * edit)
 447 {
 448     static LineBreaks cur_lb = LB_ASIS;
 449     char *filename;
 450     char *filename_res;
 451     vfs_path_t *ret_vpath = NULL;
 452
 453     const char *lb_names[LB_NAMES] = {
 454         N_("&Do not change"),
 455         N_("&Unix format (LF)"),
 456         N_("&Windows/DOS format (CR LF)"),
 457         N_("&Macintosh format (CR)")
 458     };
 459
 460     filename = vfs_path_to_str (edit->filename_vpath);
 461
 462     {
 463         quick_widget_t quick_widgets[] = {
 464             /* *INDENT-OFF* */
 465             QUICK_LABELED_INPUT (N_("Enter file name:"), input_label_above,  filename, "save-as",
 466                                  &filename_res, NULL, FALSE, FALSE, INPUT_COMPLETE_FILENAMES),
 467             QUICK_SEPARATOR (TRUE),
 468             QUICK_LABEL (N_("Change line breaks to:"), NULL),
 469             QUICK_RADIO (LB_NAMES, lb_names, (int *) &cur_lb, NULL),
 470             QUICK_BUTTONS_OK_CANCEL,
 471             QUICK_END
 472             /* *INDENT-ON* */
 473         };
 474
 475         quick_dialog_t qdlg = {
 476             -1, -1, 64,
 477             N_("Save As"), "[Save File As]",
 478             quick_widgets, NULL, NULL
 479         };
 480
 481         if (quick_dialog (&qdlg) != B_CANCEL)
 482         {
 483             char *fname;
 484
 485             edit->lb = cur_lb;
 486             fname = tilde_expand (filename_res);
 487             g_free (filename_res);
 488             ret_vpath = vfs_path_from_str (fname);
 489             g_free (fname);
 490         }
 491     }
 492
 493     g_free (filename);
 494
 495     return ret_vpath;
 496 }
 497
 498 /* --------------------------------------------------------------------------------------------- */
 499
 500 /** returns TRUE on success */
 501
 502 static gboolean
 503 edit_save_cmd (WEdit * edit)
 504 {
 505     int res, save_lock = 0;
 506
 507     if (!edit->locked && !edit->delete_file)
 508         save_lock = lock_file (edit->filename_vpath);
 509     res = edit_save_file (edit, edit->filename_vpath);
 510
 511     /* Maintain modify (not save) lock on failure */
 512     if ((res > 0 && edit->locked) || save_lock)
 513         edit->locked = unlock_file (edit->filename_vpath);
 514
 515     /* On failure try 'save as', it does locking on its own */
 516     if (res == 0)
 517         return edit_save_as_cmd (edit);
 518     edit->force |= REDRAW_COMPLETELY;
 519     if (res > 0)
 520     {
 521         edit->delete_file = 0;
 522         edit->modified = 0;
 523     }
 524
 525     return TRUE;
 526 }
 527
 528 /* --------------------------------------------------------------------------------------------- */
 529 /**
 530  * Load file content
 531  *
 532  * @param h screen the owner of editor window
 533  * @param vpath vfs file path
 534  * @return TRUE if file content was successfully loaded, FALSE otherwise
 535  */
 536
 537 static inline gboolean
 538 edit_load_file_from_filename (WDialog * h, const vfs_path_t * vpath)
 539 {
 540     Widget *w = WIDGET (h);
 541
 542     return edit_add_window (h, w->y + 1, w->x, w->lines - 2, w->cols, vpath, 0);
 543 }
 544
 545 /* --------------------------------------------------------------------------------------------- */
 546
 547 static void
 548 edit_delete_column_of_text (WEdit * edit)
 549 {
 550     off_t p, q, r;
 551     off_t m1, m2;
 552     off_t n;
 553     long b, c, d;
 554
 555     eval_marks (edit, &m1, &m2);
 556     n = edit_move_forward (edit, m1, 0, m2) + 1;
 557     c = (long) edit_move_forward3 (edit, edit_bol (edit, m1), 0, m1);
 558     d = (long) edit_move_forward3 (edit, edit_bol (edit, m2), 0, m2);
 559     b = max (min (c, d), min (edit->column1, edit->column2));
 560     c = max (c, max (edit->column1, edit->column2));
 561
 562     while (n--)
 563     {
 564         r = edit_bol (edit, edit->curs1);
 565         p = edit_move_forward3 (edit, r, b, 0);
 566         q = edit_move_forward3 (edit, r, c, 0);
 567         if (p < m1)
 568             p = m1;
 569         if (q > m2)
 570             q = m2;
 571         edit_cursor_move (edit, p - edit->curs1);
 572         while (q > p)
 573         {
 574             /* delete line between margins */
 575             if (edit_get_byte (edit, edit->curs1) != '\n')
 576                 edit_delete (edit, TRUE);
 577             q--;
 578         }
 579         if (n)
 580             /* move to next line except on the last delete */
 581             edit_cursor_move (edit, edit_move_forward (edit, edit->curs1, 1, 0) - edit->curs1);
 582     }
 583 }
 584
 585 /* --------------------------------------------------------------------------------------------- */
 586 /** if success return 0 */
 587
 588 static int
 589 edit_block_delete (WEdit * edit)
 590 {
 591     off_t start_mark, end_mark;
 592     off_t curs_pos;
 593     long curs_line, c1, c2;
 594
 595     if (eval_marks (edit, &start_mark, &end_mark))
 596         return 0;
 597     if (edit->column_highlight && edit->mark2 < 0)
 598         edit_mark_cmd (edit, FALSE);
 599     if ((end_mark - start_mark) > option_max_undo / 2)
 600     {
 601         /* Warning message with a query to continue or cancel the operation */
 602         if (edit_query_dialog2
 603             (_("Warning"),
 604              _
 605              ("Block is large, you may not be able to undo this action"),
 606              _("C&ontinue"), _("&Cancel")))
 607         {
 608             return 1;
 609         }
 610     }
 611     c1 = min (edit->column1, edit->column2);
 612     c2 = max (edit->column1, edit->column2);
 613     edit->column1 = c1;
 614     edit->column2 = c2;
 615
 616     edit_push_markers (edit);
 617
 618     curs_line = edit->curs_line;
 619
 620     curs_pos = edit->curs_col + edit->over_col;
 621
 622     /* move cursor to start of selection */
 623     edit_cursor_move (edit, start_mark - edit->curs1);
 624     edit_scroll_screen_over_cursor (edit);
 625
 626     if (start_mark < end_mark)
 627     {
 628         if (edit->column_highlight)
 629         {
 630             off_t line_width;
 631
 632             if (edit->mark2 < 0)
 633                 edit_mark_cmd (edit, FALSE);
 634             edit_delete_column_of_text (edit);
 635             /* move cursor to the saved position */
 636             edit_move_to_line (edit, curs_line);
 637             /* calculate line width and cursor position before cut */
 638             line_width = edit_move_forward3 (edit, edit_bol (edit, edit->curs1), 0,
 639                                              edit_eol (edit, edit->curs1));
 640             if (option_cursor_beyond_eol && curs_pos > line_width)
 641                 edit->over_col = curs_pos - line_width;
 642         }
 643         else
 644         {
 645             off_t count;
 646
 647             for (count = start_mark; count < end_mark; count++)
 648                 edit_delete (edit, TRUE);
 649         }
 650     }
 651     edit_set_markers (edit, 0, 0, 0, 0);
 652     edit->force |= REDRAW_PAGE;
 653     return 0;
 654 }
 655
 656 /* --------------------------------------------------------------------------------------------- */
 657 /**
 658  * Get EOL symbol for searching.
 659  *
 660  * @param edit editor object
 661  * @return EOL symbol
 662  */
 663
 664 static inline char
 665 edit_search_get_current_end_line_char (const WEdit * edit)
 666 {
 667     switch (edit->lb)
 668     {
 669     case LB_MAC:
 670         return '\r';
 671     default:
 672         return '\n';
 673     }
 674 }
 675
 676 /* --------------------------------------------------------------------------------------------- */
 677 /**
 678  * Checking if search condition have BOL(^) or EOL ($) regexp special characters.
 679  *
 680  * @param search search object
 681  * @return result of checks.
 682  */
 683
 684 static edit_search_line_t
 685 edit_get_search_line_type (mc_search_t * search)
 686 {
 687     edit_search_line_t search_line_type = 0;
 688
 689     if (search->search_type != MC_SEARCH_T_REGEX)
 690         return search_line_type;
 691
 692     if (*search->original == '^')
 693         search_line_type |= AT_START_LINE;
 694
 695     if (search->original[search->original_len - 1] == '$')
 696         search_line_type |= AT_END_LINE;
 697     return search_line_type;
 698 }
 699
 700 /* --------------------------------------------------------------------------------------------- */
 701 /**
 702  * Calculating the start position of next line.
 703  *
 704  * @param edit              editor object
 705  * @param current_pos       current position
 706  * @param max_pos           max position
 707  * @param end_string_symbol end of line symbol
 708  * @return start position of next line
 709  */
 710
 711 static off_t
 712 edit_calculate_start_of_next_line (WEdit * edit, off_t current_pos, off_t max_pos,
 713                                    char end_string_symbol)
 714 {
 715     off_t i;
 716
 717     for (i = current_pos; i < max_pos; i++)
 718     {
 719         current_pos++;
 720         if (edit_get_byte (edit, i) == end_string_symbol)
 721             break;
 722     }
 723
 724     return current_pos;
 725 }
 726
 727 /* --------------------------------------------------------------------------------------------- */
 728 /**
 729  * Calculating the end position of previous line.
 730  *
 731  * @param edit              editor object
 732  * @param current_pos       current position
 733  * @param end_string_symbol end of line symbol
 734  * @return end position of previous line
 735  */
 736
 737 static off_t
 738 edit_calculate_end_of_previous_line (WEdit * edit, off_t current_pos, char end_string_symbol)
 739 {
 740     off_t i;
 741
 742     for (i = current_pos - 1; i >= 0; i--)
 743         if (edit_get_byte (edit, i) == end_string_symbol)
 744             break;
 745
 746     return i;
 747 }
 748
 749 /* --------------------------------------------------------------------------------------------- */
 750 /**
 751  * Calculating the start position of previous line.
 752  *
 753  * @param edit              editor object
 754  * @param current_pos       current position
 755  * @param end_string_symbol end of line symbol
 756  * @return start position of previous line
 757  */
 758
 759 static inline off_t
 760 edit_calculate_start_of_previous_line (WEdit * edit, off_t current_pos, char end_string_symbol)
 761 {
 762     current_pos = edit_calculate_end_of_previous_line (edit, current_pos, end_string_symbol);
 763     current_pos = edit_calculate_end_of_previous_line (edit, current_pos, end_string_symbol);
 764
 765     return (current_pos + 1);
 766 }
 767
 768 /* --------------------------------------------------------------------------------------------- */
 769 /**
 770  * Calculating the start position of current line.
 771  *
 772  * @param edit              editor object
 773  * @param current_pos       current position
 774  * @param end_string_symbol end of line symbol
 775  * @return start position of current line
 776  */
 777
 778 static inline off_t
 779 edit_calculate_start_of_current_line (WEdit * edit, off_t current_pos, char end_string_symbol)
 780 {
 781     current_pos = edit_calculate_end_of_previous_line (edit, current_pos, end_string_symbol);
 782
 783     return (current_pos + 1);
 784 }
 785
 786 /* --------------------------------------------------------------------------------------------- */
 787 /**
 788  * Fixing (if needed) search start position if 'only in selection' option present.
 789  *
 790  * @param edit              editor object
 791  */
 792
 793 static void
 794 edit_search_fix_search_start_if_selection (WEdit * edit)
 795 {
 796     off_t start_mark = 0;
 797     off_t end_mark = 0;
 798
 799     if (!edit_search_options.only_in_selection)
 800         return;
 801
 802     if (eval_marks (edit, &start_mark, &end_mark) != 0)
 803         return;
 804
 805     if (edit_search_options.backwards)
 806     {
 807         if (edit->search_start > end_mark || edit->search_start <= start_mark)
 808             edit->search_start = end_mark;
 809     }
 810     else
 811     {
 812         if (edit->search_start < start_mark || edit->search_start >= end_mark)
 813             edit->search_start = start_mark;
 814     }
 815 }
 816
 817 /* --------------------------------------------------------------------------------------------- */
 818
 819 static gboolean
 820 editcmd_find (WEdit * edit, gsize * len)
 821 {
 822     off_t search_start = edit->search_start;
 823     off_t search_end;
 824     off_t start_mark = 0;
 825     off_t end_mark = edit->last_byte;
 826     int mark_res = 0;
 827     char end_string_symbol;
 828
 829     end_string_symbol = edit_search_get_current_end_line_char (edit);
 830
 831     /* prepare for search */
 832     if (edit_search_options.only_in_selection)
 833     {
 834         mark_res = eval_marks (edit, &start_mark, &end_mark);
 835         if (mark_res != 0)
 836         {
 837             edit->search->error = MC_SEARCH_E_NOTFOUND;
 838             edit->search->error_str = g_strdup (_("Search string not found"));
 839             return FALSE;
 840         }
 841
 842         /* fix the start and the end of search block positions */
 843         if ((edit->search_line_type & AT_START_LINE) != 0
 844             && (start_mark != 0 || edit_get_byte (edit, start_mark - 1) != end_string_symbol))
 845         {
 846             start_mark =
 847                 edit_calculate_start_of_next_line (edit, start_mark, edit->last_byte,
 848                                                    end_string_symbol);
 849         }
 850         if ((edit->search_line_type & AT_END_LINE) != 0
 851             && (end_mark - 1 != edit->last_byte
 852                 || edit_get_byte (edit, end_mark) != end_string_symbol))
 853         {
 854             end_mark = edit_calculate_end_of_previous_line (edit, end_mark, end_string_symbol);
 855         }
 856         if (start_mark >= end_mark)
 857         {
 858             edit->search->error = MC_SEARCH_E_NOTFOUND;
 859             edit->search->error_str = g_strdup (_("Search string not found"));
 860             return FALSE;
 861         }
 862     }
 863     else
 864     {
 865         if (edit_search_options.backwards)
 866             end_mark = max (1, edit->curs1) - 1;
 867     }
 868
 869     /* search */
 870     if (edit_search_options.backwards)
 871     {
 872         /* backward search */
 873         search_end = end_mark;
 874
 875         if ((edit->search_line_type & AT_START_LINE) != 0)
 876             search_start =
 877                 edit_calculate_start_of_current_line (edit, search_start, end_string_symbol);
 878
 879         while (search_start >= start_mark)
 880         {
 881             if (search_end > (off_t) (search_start + edit->search->original_len)
 882                 && mc_search_is_fixed_search_str (edit->search))
 883             {
 884                 search_end = search_start + edit->search->original_len;
 885             }
 886             if (mc_search_run (edit->search, (void *) edit, search_start, search_end, len)
 887                 && edit->search->normal_offset == search_start)
 888             {
 889                 return TRUE;
 890             }
 891
 892
 893             if ((edit->search_line_type & AT_START_LINE) != 0)
 894                 search_start =
 895                     edit_calculate_start_of_previous_line (edit, search_start, end_string_symbol);
 896             else
 897                 search_start--;
 898         }
 899         edit->search->error_str = g_strdup (_("Search string not found"));
 900     }
 901     else
 902     {
 903         /* forward search */
 904         if ((edit->search_line_type & AT_START_LINE) != 0 && search_start != start_mark)
 905             search_start =
 906                 edit_calculate_start_of_next_line (edit, search_start, end_mark, end_string_symbol);
 907         return mc_search_run (edit->search, (void *) edit, search_start, end_mark, len);
 908     }
 909     return FALSE;
 910 }
 911
 912 /* --------------------------------------------------------------------------------------------- */
 913
 914 static char *
 915 edit_replace_cmd__conv_to_display (char *str)
 916 {
 917 #ifdef HAVE_CHARSET
 918     GString *tmp;
 919
 920     tmp = str_convert_to_display (str);
 921     if (tmp != NULL)
 922     {
 923         if (tmp->len != 0)
 924             return g_string_free (tmp, FALSE);
 925         g_string_free (tmp, TRUE);
 926     }
 927 #endif
 928     return g_strdup (str);
 929 }
 930
 931 /* --------------------------------------------------------------------------------------------- */
 932
 933 static char *
 934 edit_replace_cmd__conv_to_input (char *str)
 935 {
 936 #ifdef HAVE_CHARSET
 937     GString *tmp;
 938
 939     tmp = str_convert_to_input (str);
 940     if (tmp != NULL)
 941     {
 942         if (tmp->len != 0)
 943             return g_string_free (tmp, FALSE);
 944         g_string_free (tmp, TRUE);
 945     }
 946 #endif
 947     return g_strdup (str);
 948 }
 949
 950 /* --------------------------------------------------------------------------------------------- */
 951
 952 static void
 953 edit_do_search (WEdit * edit)
 954 {
 955     gsize len = 0;
 956
 957     if (edit->search == NULL)
 958         edit->search_start = edit->curs1;
 959
 960     edit_push_undo_action (edit, KEY_PRESS + edit->start_display);
 961
 962     if (search_create_bookmark)
 963     {
 964         int found = 0, books = 0;
 965         long l = 0, l_last = -1;
 966         long q = 0;
 967
 968         search_create_bookmark = FALSE;
 969         book_mark_flush (edit, -1);
 970
 971         while (mc_search_run (edit->search, (void *) edit, q, edit->last_byte, &len))
 972         {
 973             if (found == 0)
 974                 edit->search_start = edit->search->normal_offset;
 975             found++;
 976             l += edit_count_lines (edit, q, edit->search->normal_offset);
 977             if (l != l_last)
 978             {
 979                 book_mark_insert (edit, l, BOOK_MARK_FOUND_COLOR);
 980                 books++;
 981             }
 982             l_last = l;
 983             q = edit->search->normal_offset + 1;
 984         }
 985
 986         if (found == 0)
 987             edit_error_dialog (_("Search"), _("Search string not found"));
 988         else
 989             edit_cursor_move (edit, edit->search_start - edit->curs1);
 990     }
 991     else
 992     {
 993         if (edit->found_len != 0 && edit->search_start == edit->found_start + 1
 994             && edit_search_options.backwards)
 995             edit->search_start--;
 996
 997         if (edit->found_len != 0 && edit->search_start == edit->found_start - 1
 998             && !edit_search_options.backwards)
 999             edit->search_start++;
1000
1001         if (editcmd_find (edit, &len))
1002         {
1003             edit->found_start = edit->search_start = edit->search->normal_offset;
1004             edit->found_len = len;
1005             edit->over_col = 0;
1006             edit_cursor_move (edit, edit->search_start - edit->curs1);
1007             edit_scroll_screen_over_cursor (edit);
1008             if (edit_search_options.backwards)
1009                 edit->search_start--;
1010             else
1011                 edit->search_start++;
1012         }
1013         else
1014         {
1015             edit->search_start = edit->curs1;
1016             if (edit->search->error_str != NULL)
1017                 edit_error_dialog (_("Search"), edit->search->error_str);
1018         }
1019     }
1020
1021     edit->force |= REDRAW_COMPLETELY;
1022     edit_scroll_screen_over_cursor (edit);
1023 }
1024
1025 /* --------------------------------------------------------------------------------------------- */
1026
1027 static void
1028 edit_search (WEdit * edit)
1029 {
1030     if (editcmd_dialog_search_show (edit))
1031     {
1032         edit->search_line_type = edit_get_search_line_type (edit->search);
1033         edit_search_fix_search_start_if_selection (edit);
1034         edit_do_search (edit);
1035     }
1036 }
1037
1038 /* --------------------------------------------------------------------------------------------- */
1039 /** Return a null terminated length of text. Result must be g_free'd */
1040
1041 static unsigned char *
1042 edit_get_block (WEdit * edit, off_t start, off_t finish, off_t * l)
1043 {
1044     unsigned char *s, *r;
1045
1046     r = s = g_malloc0 (finish - start + 1);
1047     if (edit->column_highlight)
1048     {
1049         *l = 0;
1050         /* copy from buffer, excluding chars that are out of the column 'margins' */
1051         while (start < finish)
1052         {
1053             int c;
1054             off_t x;
1055
1056             x = edit_move_forward3 (edit, edit_bol (edit, start), 0, start);
1057             c = edit_get_byte (edit, start);
1058             if ((x >= edit->column1 && x < edit->column2)
1059                 || (x >= edit->column2 && x < edit->column1) || c == '\n')
1060             {
1061                 *s++ = c;
1062                 (*l)++;
1063             }
1064             start++;
1065         }
1066     }
1067     else
1068     {
1069         *l = finish - start;
1070         while (start < finish)
1071             *s++ = edit_get_byte (edit, start++);
1072     }
1073     *s = '\0';
1074     return r;
1075 }
1076
1077 /* --------------------------------------------------------------------------------------------- */
1078 /** copies a block to clipboard file */
1079
1080 static gboolean
1081 edit_save_block_to_clip_file (WEdit * edit, off_t start, off_t finish)
1082 {
1083     gboolean ret;
1084     gchar *tmp;
1085
1086     tmp = mc_config_get_full_path (EDIT_CLIP_FILE);
1087     ret = edit_save_block (edit, tmp, start, finish);
1088     g_free (tmp);
1089     return ret;
1090 }
1091
1092 /* --------------------------------------------------------------------------------------------- */
1093
1094 static void
1095 pipe_mail (WEdit * edit, char *to, char *subject, char *cc)
1096 {
1097     FILE *p = 0;
1098     char *s;
1099
1100     to = name_quote (to, 0);
1101     subject = name_quote (subject, 0);
1102     cc = name_quote (cc, 0);
1103     s = g_strconcat ("mail -s ", subject, *cc ? " -c " : "", cc, " ", to, (char *) NULL);
1104     g_free (to);
1105     g_free (subject);
1106     g_free (cc);
1107
1108     if (s)
1109     {
1110         p = popen (s, "w");
1111         g_free (s);
1112     }
1113
1114     if (p)
1115     {
1116         off_t i;
1117         for (i = 0; i < edit->last_byte; i++)
1118             fputc (edit_get_byte (edit, i), p);
1119         pclose (p);
1120     }
1121 }
1122
1123 /* --------------------------------------------------------------------------------------------- */
1124 /** find first character of current word */
1125
1126 static gboolean
1127 edit_find_word_start (WEdit * edit, off_t * word_start, gsize * word_len)
1128 {
1129     int c, last;
1130     off_t i;
1131
1132     /* return if at begin of file */
1133     if (edit->curs1 <= 0)
1134         return FALSE;
1135
1136     c = edit_get_byte (edit, edit->curs1 - 1);
1137     /* return if not at end or in word */
1138     if (is_break_char (c))
1139         return FALSE;
1140
1141     /* search start of word to be completed */
1142     for (i = 2;; i++)
1143     {
1144         /* return if at begin of file */
1145         if (edit->curs1 < i)
1146             return FALSE;
1147
1148         last = c;
1149         c = edit_get_byte (edit, edit->curs1 - i);
1150
1151         if (is_break_char (c))
1152         {
1153             /* return if word starts with digit */
1154             if (isdigit (last))
1155                 return FALSE;
1156
1157             *word_start = edit->curs1 - (i - 1);        /* start found */
1158             *word_len = (gsize) (i - 1);
1159             break;
1160         }
1161     }
1162     /* success */
1163     return TRUE;
1164 }
1165
1166 /* --------------------------------------------------------------------------------------------- */
1167 /**
1168  * Get current word under cursor
1169  *
1170  * @param edit editor object
1171  * @param srch mc_search object
1172  * @param word_start start word position
1173  *
1174  * @return newly allocated string or NULL if no any words under cursor
1175  */
1176
1177 static char *
1178 edit_collect_completions_get_current_word (WEdit * edit, mc_search_t * srch, off_t word_start)
1179 {
1180     gsize len = 0;
1181     off_t i;
1182     GString *temp;
1183
1184     if (!mc_search_run (srch, (void *) edit, word_start, edit->last_byte, &len))
1185         return NULL;
1186
1187     temp = g_string_sized_new (len);
1188
1189     for (i = 0; i < (off_t) len; i++)
1190     {
1191         int chr;
1192
1193         chr = edit_get_byte (edit, word_start + i);
1194         if (!isspace (chr))
1195             g_string_append_c (temp, chr);
1196     }
1197
1198     return g_string_free (temp, temp->len == 0);
1199 }
1200
1201 /* --------------------------------------------------------------------------------------------- */
1202 /** collect the possible completions */
1203
1204 static gsize
1205 edit_collect_completions (WEdit * edit, off_t word_start, gsize word_len,
1206                           char *match_expr, struct selection *compl, gsize * num)
1207 {
1208     gsize len = 0;
1209     gsize max_len = 0;
1210     gsize i;
1211     int skip;
1212     GString *temp;
1213     mc_search_t *srch;
1214     off_t last_byte, start = -1;
1215     char *current_word;
1216
1217     srch = mc_search_new (match_expr, -1);
1218     if (srch == NULL)
1219         return 0;
1220
1221     if (mc_config_get_bool
1222         (mc_main_config, CONFIG_APP_SECTION, "editor_wordcompletion_collect_entire_file", 0))
1223     {
1224         last_byte = edit->last_byte;
1225     }
1226     else
1227     {
1228         last_byte = word_start;
1229     }
1230
1231     srch->search_type = MC_SEARCH_T_REGEX;
1232     srch->is_case_sensitive = TRUE;
1233     srch->search_fn = edit_search_cmd_callback;
1234
1235     current_word = edit_collect_completions_get_current_word (edit, srch, word_start);
1236
1237     temp = g_string_new ("");
1238
1239     /* collect max MAX_WORD_COMPLETIONS completions */
1240     while (mc_search_run (srch, (void *) edit, start + 1, last_byte, &len))
1241     {
1242         g_string_set_size (temp, 0);
1243         start = srch->normal_offset;
1244
1245         /* add matched completion if not yet added */
1246         for (i = 0; i < len; i++)
1247         {
1248             skip = edit_get_byte (edit, start + i);
1249             if (isspace (skip))
1250                 continue;
1251
1252             /* skip current word */
1253             if (start + (off_t) i == word_start)
1254                 break;
1255
1256             g_string_append_c (temp, skip);
1257         }
1258
1259         if (temp->len == 0)
1260             continue;
1261
1262         if (current_word != NULL && strcmp (current_word, temp->str) == 0)
1263             continue;
1264
1265         skip = 0;
1266
1267         for (i = 0; i < *num; i++)
1268         {
1269             if (strncmp
1270                 ((char *) &compl[i].text[word_len],
1271                  (char *) &temp->str[word_len], max (len, compl[i].len) - word_len) == 0)
1272             {
1273                 struct selection this = compl[i];
1274                 for (++i; i < *num; i++)
1275                 {
1276                     compl[i - 1] = compl[i];
1277                 }
1278                 compl[*num - 1] = this;
1279                 skip = 1;
1280                 break;          /* skip it, already added */
1281             }
1282         }
1283         if (skip != 0)
1284             continue;
1285
1286         if (*num == MAX_WORD_COMPLETIONS)
1287         {
1288             g_free (compl[0].text);
1289             for (i = 1; i < *num; i++)
1290             {
1291                 compl[i - 1] = compl[i];
1292             }
1293             (*num)--;
1294         }
1295 #ifdef HAVE_CHARSET
1296         {
1297             GString *recoded;
1298             recoded = str_convert_to_display (temp->str);
1299
1300             if (recoded && recoded->len)
1301                 g_string_assign (temp, recoded->str);
1302
1303             g_string_free (recoded, TRUE);
1304         }
1305 #endif
1306         compl[*num].text = g_strndup (temp->str, temp->len);
1307         compl[*num].len = temp->len;
1308         (*num)++;
1309         start += len;
1310
1311         /* note the maximal length needed for the completion dialog */
1312         if (len > max_len)
1313             max_len = len;
1314     }
1315
1316     mc_search_free (srch);
1317     g_string_free (temp, TRUE);
1318     g_free (current_word);
1319
1320     return max_len;
1321 }
1322
1323 /* --------------------------------------------------------------------------------------------- */
1324
1325 static void
1326 edit_insert_column_of_text (WEdit * edit, unsigned char *data, off_t size, long width,
1327                             off_t * start_pos, off_t * end_pos, long *col1, long *col2)
1328 {
1329     off_t i, cursor;
1330     long col;
1331
1332     cursor = edit->curs1;
1333     col = edit_get_col (edit);
1334
1335     for (i = 0; i < size; i++)
1336     {
1337         if (data[i] != '\n')
1338             edit_insert (edit, data[i]);
1339         else
1340         {                       /* fill in and move to next line */
1341             long l;
1342             off_t p;
1343
1344             if (edit_get_byte (edit, edit->curs1) != '\n')
1345             {
1346                 for (l = width - (edit_get_col (edit) - col); l > 0; l -= space_width)
1347                     edit_insert (edit, ' ');
1348             }
1349             for (p = edit->curs1;; p++)
1350             {
1351                 if (p == edit->last_byte)
1352                 {
1353                     edit_cursor_move (edit, edit->last_byte - edit->curs1);
1354                     edit_insert_ahead (edit, '\n');
1355                     p++;
1356                     break;
1357                 }
1358                 if (edit_get_byte (edit, p) == '\n')
1359                 {
1360                     p++;
1361                     break;
1362                 }
1363             }
1364             edit_cursor_move (edit, edit_move_forward3 (edit, p, col, 0) - edit->curs1);
1365
1366             for (l = col - edit_get_col (edit); l >= space_width; l -= space_width)
1367                 edit_insert (edit, ' ');
1368         }
1369     }
1370
1371     *col1 = col;
1372     *col2 = col + width;
1373     *start_pos = cursor;
1374     *end_pos = edit->curs1;
1375     edit_cursor_move (edit, cursor - edit->curs1);
1376 }
1377
1378 /* --------------------------------------------------------------------------------------------- */
1379
1380 static int
1381 edit_macro_comparator (gconstpointer * macro1, gconstpointer * macro2)
1382 {
1383     const macros_t *m1 = (const macros_t *) macro1;
1384     const macros_t *m2 = (const macros_t *) macro2;
1385
1386     return m1->hotkey - m2->hotkey;
1387 }
1388
1389 /* --------------------------------------------------------------------------------------------- */
1390
1391 static void
1392 edit_macro_sort_by_hotkey (void)
1393 {
1394     if (macros_list != NULL && macros_list->len != 0)
1395         g_array_sort (macros_list, (GCompareFunc) edit_macro_comparator);
1396 }
1397
1398 /* --------------------------------------------------------------------------------------------- */
1399
1400 static gboolean
1401 edit_get_macro (WEdit * edit, int hotkey, const macros_t ** macros, guint * indx)
1402 {
1403     const macros_t *array_start = &g_array_index (macros_list, struct macros_t, 0);
1404     macros_t *result;
1405     macros_t search_macro;
1406
1407     (void) edit;
1408
1409     search_macro.hotkey = hotkey;
1410     result = bsearch (&search_macro, macros_list->data, macros_list->len,
1411                       sizeof (macros_t), (GCompareFunc) edit_macro_comparator);
1412
1413     if (result != NULL && result->macro != NULL)
1414     {
1415         *indx = (result - array_start);
1416         *macros = result;
1417         return TRUE;
1418     }
1419     *indx = 0;
1420     return FALSE;
1421 }
1422
1423 /* --------------------------------------------------------------------------------------------- */
1424 /** returns FALSE on error */
1425
1426 static gboolean
1427 edit_delete_macro (WEdit * edit, int hotkey)
1428 {
1429     mc_config_t *macros_config = NULL;
1430     const char *section_name = "editor";
1431     gchar *macros_fname;
1432     guint indx;
1433     char *skeyname;
1434     const macros_t *macros = NULL;
1435
1436     /* clear array of actions for current hotkey */
1437     while (edit_get_macro (edit, hotkey, &macros, &indx))
1438     {
1439         if (macros->macro != NULL)
1440             g_array_free (macros->macro, TRUE);
1441         macros = NULL;
1442         g_array_remove_index (macros_list, indx);
1443         edit_macro_sort_by_hotkey ();
1444     }
1445
1446     macros_fname = mc_config_get_full_path (MC_MACRO_FILE);
1447     macros_config = mc_config_init (macros_fname, FALSE);
1448     g_free (macros_fname);
1449
1450     if (macros_config == NULL)
1451         return FALSE;
1452
1453     skeyname = lookup_key_by_code (hotkey);
1454     while (mc_config_del_key (macros_config, section_name, skeyname))
1455         ;
1456     g_free (skeyname);
1457     mc_config_save_file (macros_config, NULL);
1458     mc_config_deinit (macros_config);
1459     return TRUE;
1460 }
1461
1462 /* --------------------------------------------------------------------------------------------- */
1463 /**
1464  * Callback for the iteration of objects in the 'editors' array.
1465  * Toggle syntax highlighting in editor object.
1466  *
1467  * @param data      probably WEdit object
1468  * @param user_data unused
1469  */
1470
1471 static void
1472 edit_syntax_onoff_cb (void *data, void *user_data)
1473 {
1474     (void) user_data;
1475
1476     if (edit_widget_is_editor ((const Widget *) data))
1477     {
1478         WEdit *edit = (WEdit *) data;
1479
1480         if (option_syntax_highlighting)
1481             edit_load_syntax (edit, NULL, edit->syntax_type);
1482         edit->force |= REDRAW_PAGE;
1483     }
1484 }
1485
1486 /* --------------------------------------------------------------------------------------------- */
1487 /**
1488  * Callback for the iteration of objects in the 'editors' array.
1489  * Redraw editor object.
1490  *
1491  * @param data      probably WEdit object
1492  * @param user_data unused
1493  */
1494
1495 static void
1496 edit_redraw_page_cb (void *data, void *user_data)
1497 {
1498     (void) user_data;
1499
1500     if (edit_widget_is_editor ((const Widget *) data))
1501         ((WEdit *) data)->force |= REDRAW_PAGE;
1502 }
1503
1504 /* --------------------------------------------------------------------------------------------- */
1505 /*** public functions ****************************************************************************/
1506 /* --------------------------------------------------------------------------------------------- */
1507
1508 void
1509 edit_refresh_cmd (void)
1510 {
1511     clr_scr ();
1512     repaint_screen ();
1513     tty_keypad (TRUE);
1514 }
1515
1516 /* --------------------------------------------------------------------------------------------- */
1517 /**
1518  * Toggle syntax highlighting in all editor windows.
1519  *
1520  * @param h root widget for all windows
1521  */
1522
1523 void
1524 edit_syntax_onoff_cmd (WDialog * h)
1525 {
1526     option_syntax_highlighting = !option_syntax_highlighting;
1527     g_list_foreach (h->widgets, edit_syntax_onoff_cb, NULL);
1528     dlg_redraw (h);
1529 }
1530
1531 /* --------------------------------------------------------------------------------------------- */
1532 /**
1533  * Toggle tabs showing in all editor windows.
1534  *
1535  * @param h root widget for all windows
1536  */
1537
1538 void
1539 edit_show_tabs_tws_cmd (WDialog * h)
1540 {
1541     enable_show_tabs_tws = !enable_show_tabs_tws;
1542     g_list_foreach (h->widgets, edit_redraw_page_cb, NULL);
1543     dlg_redraw (h);
1544 }
1545
1546 /* --------------------------------------------------------------------------------------------- */
1547 /**
1548  * Toggle right margin showing in all editor windows.
1549  *
1550  * @param h root widget for all windows
1551  */
1552
1553 void
1554 edit_show_margin_cmd (WDialog * h)
1555 {
1556     show_right_margin = !show_right_margin;
1557     g_list_foreach (h->widgets, edit_redraw_page_cb, NULL);
1558     dlg_redraw (h);
1559 }
1560
1561 /* --------------------------------------------------------------------------------------------- */
1562 /**
1563  * Toggle line numbers showing in all editor windows.
1564  *
1565  * @param h root widget for all windows
1566  */
1567
1568 void
1569 edit_show_numbers_cmd (WDialog * h)
1570 {
1571     option_line_state = !option_line_state;
1572     option_line_state_width = option_line_state ? LINE_STATE_WIDTH : 0;
1573     g_list_foreach (h->widgets, edit_redraw_page_cb, NULL);
1574     dlg_redraw (h);
1575 }
1576
1577 /* --------------------------------------------------------------------------------------------- */
1578
1579 void
1580 edit_save_mode_cmd (void)
1581 {
1582     char *str_result;
1583
1584     const char *str[] = {
1585         N_("&Quick save"),
1586         N_("&Safe save"),
1587         N_("&Do backups with following extension:")
1588     };
1589
1590 #ifdef HAVE_ASSERT_H
1591     assert (option_backup_ext != NULL);
1592 #endif
1593
1594 #ifdef ENABLE_NLS
1595     size_t i;
1596
1597     for (i = 0; i < 3; i++)
1598         str[i] = _(str[i]);
1599 #endif
1600
1601     {
1602         quick_widget_t quick_widgets[] = {
1603             /* *INDENT-OFF* */
1604             QUICK_RADIO (3, str, &option_save_mode, &edit_save_mode_radio_id),
1605             QUICK_INPUT (option_backup_ext, "edit-backup-ext", &str_result,
1606                          &edit_save_mode_input_id, FALSE, FALSE, INPUT_COMPLETE_NONE),
1607             QUICK_SEPARATOR (TRUE),
1608             QUICK_CHECKBOX (N_("Check &POSIX new line"), &option_check_nl_at_eof, NULL),
1609             QUICK_BUTTONS_OK_CANCEL,
1610             QUICK_END
1611             /* *INDENT-ON* */
1612         };
1613
1614         quick_dialog_t qdlg = {
1615             -1, -1, 38,
1616             N_("Edit Save Mode"), "[Edit Save Mode]",
1617             quick_widgets, edit_save_mode_callback, NULL
1618         };
1619
1620         if (quick_dialog (&qdlg) != B_CANCEL)
1621         {
1622             g_free (option_backup_ext);
1623             option_backup_ext = str_result;
1624         }
1625     }
1626 }
1627
1628 /* --------------------------------------------------------------------------------------------- */
1629
1630 void
1631 edit_set_filename (WEdit * edit, const vfs_path_t * name_vpath)
1632 {
1633     vfs_path_free (edit->filename_vpath);
1634     edit->filename_vpath = vfs_path_clone (name_vpath);
1635
1636     if (edit->dir_vpath == NULL)
1637         edit->dir_vpath = vfs_path_clone (vfs_get_raw_current_dir ());
1638 }
1639
1640 /* --------------------------------------------------------------------------------------------- */
1641 /* Here we want to warn the users of overwriting an existing file,
1642    but only if they have made a change to the filename */
1643 /* returns TRUE on success */
1644 gboolean
1645 edit_save_as_cmd (WEdit * edit)
1646 {
1647     /* This heads the 'Save As' dialog box */
1648     vfs_path_t *exp_vpath;
1649     int save_lock = 0;
1650     int different_filename = 0;
1651
1652     if (!edit_check_newline (edit))
1653         return FALSE;
1654
1655     exp_vpath = edit_get_save_file_as (edit);
1656     edit_push_undo_action (edit, KEY_PRESS + edit->start_display);
1657
1658     if (exp_vpath != NULL)
1659     {
1660         if (vfs_path_len (exp_vpath) == 0)
1661             goto ret;
1662         else
1663         {
1664             int rv;
1665
1666             if (vfs_path_cmp (edit->filename_vpath, exp_vpath) != 0)
1667             {
1668                 int file;
1669                 struct stat sb;
1670
1671                 if (mc_stat (exp_vpath, &sb) == 0 && !S_ISREG (sb.st_mode))
1672                 {
1673                     edit_error_dialog (_("Save as"),
1674                                        get_sys_error (_
1675                                                       ("Cannot save: destination is not a regular file")));
1676                     goto ret;
1677                 }
1678
1679                 different_filename = 1;
1680                 file = mc_open (exp_vpath, O_RDONLY | O_BINARY);
1681
1682                 if (file != -1)
1683                 {
1684                     /* the file exists */
1685                     mc_close (file);
1686                     /* Overwrite the current file or cancel the operation */
1687                     if (edit_query_dialog2
1688                         (_("Warning"),
1689                          _("A file already exists with this name"), _("&Overwrite"), _("&Cancel")))
1690                         goto ret;
1691                 }
1692                 else
1693                 {
1694                     edit->stat1.st_mode |= S_IWUSR;
1695                 }
1696                 save_lock = lock_file (exp_vpath);
1697             }
1698             else
1699             {
1700                 /* filenames equal, check if already locked */
1701                 if (!edit->locked && !edit->delete_file)
1702                     save_lock = lock_file (exp_vpath);
1703             }
1704
1705             if (different_filename)
1706             {
1707                 /*
1708                  * Allow user to write into saved (under another name) file
1709                  * even if original file had r/o user permissions.
1710                  */
1711                 edit->stat1.st_mode |= S_IWRITE;
1712             }
1713
1714             rv = edit_save_file (edit, exp_vpath);
1715             switch (rv)
1716             {
1717             case 1:
1718                 /* Succesful, so unlock both files */
1719                 if (different_filename)
1720                 {
1721                     if (save_lock)
1722                         unlock_file (exp_vpath);
1723                     if (edit->locked)
1724                         edit->locked = unlock_file (edit->filename_vpath);
1725                 }
1726                 else
1727                 {
1728                     if (edit->locked || save_lock)
1729                         edit->locked = unlock_file (edit->filename_vpath);
1730                 }
1731
1732                 edit_set_filename (edit, exp_vpath);
1733                 if (edit->lb != LB_ASIS)
1734                     edit_reload (edit, exp_vpath);
1735                 edit->modified = 0;
1736                 edit->delete_file = 0;
1737                 if (different_filename)
1738                     edit_load_syntax (edit, NULL, edit->syntax_type);
1739                 vfs_path_free (exp_vpath);
1740                 edit->force |= REDRAW_COMPLETELY;
1741                 return TRUE;
1742             default:
1743                 edit_error_dialog (_("Save as"), get_sys_error (_("Cannot save file")));
1744                 /* fallthrough */
1745             case -1:
1746                 /* Failed, so maintain modify (not save) lock */
1747                 if (save_lock)
1748                     unlock_file (exp_vpath);
1749                 break;
1750             }
1751         }
1752     }
1753
1754   ret:
1755     vfs_path_free (exp_vpath);
1756     edit->force |= REDRAW_COMPLETELY;
1757     return FALSE;
1758 }
1759
1760 /* {{{ Macro stuff starts here */
1761 /* --------------------------------------------------------------------------------------------- */
1762
1763 void
1764 edit_delete_macro_cmd (WEdit * edit)
1765 {
1766     int hotkey;
1767
1768     hotkey = editcmd_dialog_raw_key_query (_("Delete macro"), _("Press macro hotkey:"), TRUE);
1769
1770     if (hotkey != 0 && !edit_delete_macro (edit, hotkey))
1771         message (D_ERROR, _("Delete macro"), _("Macro not deleted"));
1772 }
1773
1774 /* --------------------------------------------------------------------------------------------- */
1775
1776 /** returns FALSE on error */
1777 gboolean
1778 edit_execute_macro (WEdit * edit, int hotkey)
1779 {
1780     gboolean res = FALSE;
1781
1782     if (hotkey != 0)
1783     {
1784         const macros_t *macros;
1785         guint indx;
1786
1787         if (edit_get_macro (edit, hotkey, &macros, &indx) &&
1788             macros->macro != NULL && macros->macro->len != 0)
1789         {
1790             guint i;
1791
1792             edit->force |= REDRAW_PAGE;
1793
1794             for (i = 0; i < macros->macro->len; i++)
1795             {
1796                 const macro_action_t *m_act;
1797
1798                 m_act = &g_array_index (macros->macro, struct macro_action_t, i);
1799                 edit_execute_cmd (edit, m_act->action, m_act->ch);
1800                 res = TRUE;
1801             }
1802         }
1803     }
1804
1805     return res;
1806 }
1807
1808 /* --------------------------------------------------------------------------------------------- */
1809
1810 /** returns FALSE on error */
1811 gboolean
1812 edit_store_macro_cmd (WEdit * edit)
1813 {
1814     int i;
1815     int hotkey;
1816     GString *marcros_string;
1817     mc_config_t *macros_config = NULL;
1818     const char *section_name = "editor";
1819     gchar *macros_fname;
1820     GArray *macros;             /* current macro */
1821     int tmp_act;
1822     gboolean have_macro = FALSE;
1823     char *skeyname = NULL;
1824
1825     hotkey =
1826         editcmd_dialog_raw_key_query (_("Save macro"), _("Press the macro's new hotkey:"), TRUE);
1827     if (hotkey == ESC_CHAR)
1828         return FALSE;
1829
1830     tmp_act = keybind_lookup_keymap_command (editor_map, hotkey);
1831
1832     /* return FALSE if try assign macro into restricted hotkeys */
1833     if (tmp_act == CK_MacroStartRecord
1834         || tmp_act == CK_MacroStopRecord || tmp_act == CK_MacroStartStopRecord)
1835         return FALSE;
1836
1837     edit_delete_macro (edit, hotkey);
1838
1839     macros_fname = mc_config_get_full_path (MC_MACRO_FILE);
1840     macros_config = mc_config_init (macros_fname, FALSE);
1841     g_free (macros_fname);
1842
1843     if (macros_config == NULL)
1844         return FALSE;
1845
1846     edit_push_undo_action (edit, KEY_PRESS + edit->start_display);
1847
1848     marcros_string = g_string_sized_new (250);
1849     macros = g_array_new (TRUE, FALSE, sizeof (macro_action_t));
1850
1851     skeyname = lookup_key_by_code (hotkey);
1852
1853     for (i = 0; i < macro_index; i++)
1854     {
1855         macro_action_t m_act;
1856         const char *action_name;
1857
1858         action_name = keybind_lookup_actionname (record_macro_buf[i].action);
1859
1860         if (action_name == NULL)
1861             break;
1862
1863         m_act.action = record_macro_buf[i].action;
1864         m_act.ch = record_macro_buf[i].ch;
1865         g_array_append_val (macros, m_act);
1866         have_macro = TRUE;
1867         g_string_append_printf (marcros_string, "%s:%i;", action_name,
1868                                 (int) record_macro_buf[i].ch);
1869     }
1870     if (have_macro)
1871     {
1872         macros_t macro;
1873         macro.hotkey = hotkey;
1874         macro.macro = macros;
1875         g_array_append_val (macros_list, macro);
1876         mc_config_set_string (macros_config, section_name, skeyname, marcros_string->str);
1877     }
1878     else
1879         mc_config_del_key (macros_config, section_name, skeyname);
1880
1881     g_free (skeyname);
1882     edit_macro_sort_by_hotkey ();
1883
1884     g_string_free (marcros_string, TRUE);
1885     mc_config_save_file (macros_config, NULL);
1886     mc_config_deinit (macros_config);
1887     return TRUE;
1888 }
1889
1890  /* --------------------------------------------------------------------------------------------- */
1891
1892 gboolean
1893 edit_repeat_macro_cmd (WEdit * edit)
1894 {
1895     int i, j;
1896     char *f;
1897     long count_repeat;
1898     char *error = NULL;
1899
1900     f = input_dialog (_("Repeat last commands"), _("Repeat times:"), MC_HISTORY_EDIT_REPEAT, NULL,
1901                       INPUT_COMPLETE_NONE);
1902     if (f == NULL || *f == '\0')
1903     {
1904         g_free (f);
1905         return FALSE;
1906     }
1907
1908     count_repeat = strtol (f, &error, 0);
1909
1910     if (*error != '\0')
1911     {
1912         g_free (f);
1913         return FALSE;
1914     }
1915
1916     g_free (f);
1917
1918     edit_push_undo_action (edit, KEY_PRESS + edit->start_display);
1919     edit->force |= REDRAW_PAGE;
1920
1921     for (j = 0; j < count_repeat; j++)
1922         for (i = 0; i < macro_index; i++)
1923             edit_execute_cmd (edit, record_macro_buf[i].action, record_macro_buf[i].ch);
1924     edit_update_screen (edit);
1925     return TRUE;
1926 }
1927
1928 /* --------------------------------------------------------------------------------------------- */
1929 /** return FALSE on error */
1930
1931 gboolean
1932 edit_load_macro_cmd (WEdit * edit)
1933 {
1934     mc_config_t *macros_config = NULL;
1935     gchar **profile_keys, **keys;
1936     gchar **values, **curr_values;
1937     gsize len, values_len;
1938     const char *section_name = "editor";
1939     gchar *macros_fname;
1940     int hotkey;
1941
1942     (void) edit;
1943
1944     macros_fname = mc_config_get_full_path (MC_MACRO_FILE);
1945     macros_config = mc_config_init (macros_fname, TRUE);
1946     g_free (macros_fname);
1947
1948     if (macros_config == NULL || macros_list == NULL || macros_list->len != 0)
1949         return FALSE;
1950
1951     profile_keys = keys = mc_config_get_keys (macros_config, section_name, &len);
1952     while (*profile_keys != NULL)
1953     {
1954         gboolean have_macro;
1955         GArray *macros;
1956         macros_t macro;
1957
1958         macros = g_array_new (TRUE, FALSE, sizeof (macro_action_t));
1959
1960         curr_values = values = mc_config_get_string_list (macros_config, section_name,
1961                                                           *profile_keys, &values_len);
1962         hotkey = lookup_key (*profile_keys, NULL);
1963         have_macro = FALSE;
1964
1965         while (*curr_values != NULL && *curr_values[0] != '\0')
1966         {
1967             char **macro_pair = NULL;
1968
1969             macro_pair = g_strsplit (*curr_values, ":", 2);
1970
1971             if (macro_pair != NULL)
1972             {
1973                 macro_action_t m_act;
1974                 if (macro_pair[0] == NULL || macro_pair[0][0] == '\0')
1975                     m_act.action = 0;
1976                 else
1977                 {
1978                     m_act.action = keybind_lookup_action (macro_pair[0]);
1979                     g_free (macro_pair[0]);
1980                     macro_pair[0] = NULL;
1981                 }
1982                 if (macro_pair[1] == NULL || macro_pair[1][0] == '\0')
1983                     m_act.ch = -1;
1984                 else
1985                 {
1986                     m_act.ch = strtol (macro_pair[1], NULL, 0);
1987                     g_free (macro_pair[1]);
1988                     macro_pair[1] = NULL;
1989                 }
1990                 if (m_act.action != 0)
1991                 {
1992                     /* a shell command */
1993                     if ((m_act.action / CK_PipeBlock (0)) == 1)
1994                     {
1995                         m_act.action = CK_PipeBlock (0) + (m_act.ch > 0 ? m_act.ch : 0);
1996                         m_act.ch = -1;
1997                     }
1998                     g_array_append_val (macros, m_act);
1999                     have_macro = TRUE;
2000                 }
2001                 g_strfreev (macro_pair);
2002                 macro_pair = NULL;
2003             }
2004             curr_values++;
2005         }
2006         if (have_macro)
2007         {
2008             macro.hotkey = hotkey;
2009             macro.macro = macros;
2010             g_array_append_val (macros_list, macro);
2011         }
2012         profile_keys++;
2013         g_strfreev (values);
2014     }
2015     g_strfreev (keys);
2016     mc_config_deinit (macros_config);
2017     edit_macro_sort_by_hotkey ();
2018     return TRUE;
2019 }
2020
2021 /* }}} Macro stuff end here */
2022
2023 /* --------------------------------------------------------------------------------------------- */
2024 /** returns TRUE on success */
2025
2026 gboolean
2027 edit_save_confirm_cmd (WEdit * edit)
2028 {
2029     char *f = NULL;
2030
2031     if (edit->filename_vpath == NULL)
2032         return edit_save_as_cmd (edit);
2033
2034     if (!edit_check_newline (edit))
2035         return FALSE;
2036
2037     if (edit_confirm_save)
2038     {
2039         char *filename;
2040         gboolean ok;
2041
2042         filename = vfs_path_to_str (edit->filename_vpath);
2043         f = g_strdup_printf (_("Confirm save file: \"%s\""), filename);
2044         g_free (filename);
2045         ok = (edit_query_dialog2 (_("Save file"), f, _("&Save"), _("&Cancel")) == 0);
2046         g_free (f);
2047         if (!ok)
2048             return FALSE;
2049     }
2050     return edit_save_cmd (edit);
2051 }
2052
2053 /* --------------------------------------------------------------------------------------------- */
2054 /**
2055   * Ask file to edit and load it.
2056   *
2057   * @return TRUE on success or cancel of ask.
2058   */
2059
2060 gboolean
2061 edit_load_cmd (WDialog * h)
2062 {
2063     char *exp;
2064     gboolean ret = TRUE;        /* possible cancel */
2065
2066     exp = input_expand_dialog (_("Load"), _("Enter file name:"),
2067                                MC_HISTORY_EDIT_LOAD, INPUT_LAST_TEXT,
2068                                INPUT_COMPLETE_FILENAMES | INPUT_COMPLETE_CD);
2069
2070     if (exp != NULL && *exp != '\0')
2071     {
2072         vfs_path_t *exp_vpath;
2073
2074         exp_vpath = vfs_path_from_str (exp);
2075         ret = edit_load_file_from_filename (h, exp_vpath);
2076         vfs_path_free (exp_vpath);
2077     }
2078
2079     g_free (exp);
2080
2081     return ret;
2082 }
2083
2084 /* --------------------------------------------------------------------------------------------- */
2085 /**
2086   * Load syntax file to edit.
2087   *
2088   * @return TRUE on success
2089   */
2090
2091 gboolean
2092 edit_load_syntax_file (WDialog * h)
2093 {
2094     vfs_path_t *extdir_vpath;
2095     int dir = 0;
2096     gboolean ret = FALSE;
2097
2098     if (geteuid () == 0)
2099         dir = query_dialog (_("Syntax file edit"),
2100                             _("Which syntax file you want to edit?"), D_NORMAL, 2,
2101                             _("&User"), _("&System wide"));
2102
2103     extdir_vpath =
2104         vfs_path_build_filename (mc_global.sysconfig_dir, "syntax", "Syntax", (char *) NULL);
2105     if (!exist_file (vfs_path_get_last_path_str (extdir_vpath)))
2106     {
2107         vfs_path_free (extdir_vpath);
2108         extdir_vpath =
2109             vfs_path_build_filename (mc_global.share_data_dir, "syntax", "Syntax", (char *) NULL);
2110     }
2111
2112     if (dir == 0)
2113     {
2114         vfs_path_t *user_syntax_file_vpath;
2115
2116         user_syntax_file_vpath = mc_config_get_full_vpath (EDIT_SYNTAX_FILE);
2117         check_for_default (extdir_vpath, user_syntax_file_vpath);
2118         ret = edit_load_file_from_filename (h, user_syntax_file_vpath);
2119         vfs_path_free (user_syntax_file_vpath);
2120     }
2121     else if (dir == 1)
2122         ret = edit_load_file_from_filename (h, extdir_vpath);
2123
2124     vfs_path_free (extdir_vpath);
2125
2126     return ret;
2127 }
2128
2129 /* --------------------------------------------------------------------------------------------- */
2130 /**
2131   * Load menu file to edit.
2132   *
2133   * @return TRUE on success
2134   */
2135
2136 gboolean
2137 edit_load_menu_file (WDialog * h)
2138 {
2139     vfs_path_t *buffer_vpath;
2140     vfs_path_t *menufile_vpath;
2141     int dir;
2142     gboolean ret;
2143
2144     dir = query_dialog (_("Menu edit"),
2145                         _("Which menu file do you want to edit?"), D_NORMAL,
2146                         geteuid () != 0 ? 2 : 3, _("&Local"), _("&User"), _("&System wide"));
2147
2148     menufile_vpath = vfs_path_build_filename (mc_global.sysconfig_dir, EDIT_GLOBAL_MENU, NULL);
2149     if (!exist_file (vfs_path_get_last_path_str (menufile_vpath)))
2150     {
2151         vfs_path_free (menufile_vpath);
2152         menufile_vpath = vfs_path_build_filename (mc_global.share_data_dir, EDIT_GLOBAL_MENU, NULL);
2153     }
2154
2155     switch (dir)
2156     {
2157     case 0:
2158         buffer_vpath = vfs_path_from_str (EDIT_LOCAL_MENU);
2159         check_for_default (menufile_vpath, buffer_vpath);
2160         chmod (vfs_path_get_last_path_str (buffer_vpath), 0600);
2161         break;
2162
2163     case 1:
2164         buffer_vpath = mc_config_get_full_vpath (EDIT_HOME_MENU);
2165         check_for_default (menufile_vpath, buffer_vpath);
2166         break;
2167
2168     case 2:
2169         buffer_vpath = vfs_path_build_filename (mc_global.sysconfig_dir, EDIT_GLOBAL_MENU, NULL);
2170         if (!exist_file (vfs_path_get_last_path_str (buffer_vpath)))
2171         {
2172             vfs_path_free (buffer_vpath);
2173             buffer_vpath =
2174                 vfs_path_build_filename (mc_global.share_data_dir, EDIT_GLOBAL_MENU, NULL);
2175         }
2176         break;
2177
2178     default:
2179         vfs_path_free (menufile_vpath);
2180         return FALSE;
2181     }
2182
2183     ret = edit_load_file_from_filename (h, buffer_vpath);
2184
2185     vfs_path_free (buffer_vpath);
2186     vfs_path_free (menufile_vpath);
2187
2188     return ret;
2189 }
2190
2191 /* --------------------------------------------------------------------------------------------- */
2192 /**
2193   * Close window with opened file.
2194   *
2195   * @return TRUE if file was closed.
2196   */
2197
2198 gboolean
2199 edit_close_cmd (WEdit * edit)
2200 {
2201     gboolean ret;
2202
2203     ret = (edit != NULL) && edit_ok_to_exit (edit);
2204
2205     if (ret)
2206     {
2207         WDialog *h = WIDGET (edit)->owner;
2208
2209         if (edit->locked != 0)
2210             unlock_file (edit->filename_vpath);
2211
2212         del_widget (edit);
2213
2214         if (edit_widget_is_editor (WIDGET (h->current->data)))
2215             edit = (WEdit *) h->current->data;
2216         else
2217         {
2218             edit = find_editor (h);
2219             if (edit != NULL)
2220                 dlg_set_top_widget (edit);
2221         }
2222     }
2223
2224     if (edit != NULL)
2225         edit->force |= REDRAW_COMPLETELY;
2226
2227     return ret;
2228 }
2229
2230 /* --------------------------------------------------------------------------------------------- */
2231 /**
2232    if mark2 is -1 then marking is from mark1 to the cursor.
2233    Otherwise its between the markers. This handles this.
2234    Returns 1 if no text is marked.
2235  */
2236
2237 int
2238 eval_marks (WEdit * edit, off_t * start_mark, off_t * end_mark)
2239 {
2240     if (edit->mark1 != edit->mark2)
2241     {
2242         off_t start_bol, start_eol;
2243         off_t end_bol, end_eol;
2244         off_t diff1, diff2;
2245         long col1, col2;
2246         long end_mark_curs;
2247
2248         if (edit->end_mark_curs < 0)
2249             end_mark_curs = edit->curs1;
2250         else
2251             end_mark_curs = edit->end_mark_curs;
2252
2253         if (edit->mark2 >= 0)
2254         {
2255             *start_mark = min (edit->mark1, edit->mark2);
2256             *end_mark = max (edit->mark1, edit->mark2);
2257         }
2258         else
2259         {
2260             *start_mark = min (edit->mark1, end_mark_curs);
2261             *end_mark = max (edit->mark1, end_mark_curs);
2262             edit->column2 = edit->curs_col + edit->over_col;
2263         }
2264
2265         if (edit->column_highlight
2266             && (((edit->mark1 > end_mark_curs) && (edit->column1 < edit->column2))
2267                 || ((edit->mark1 < end_mark_curs) && (edit->column1 > edit->column2))))
2268         {
2269             start_bol = edit_bol (edit, *start_mark);
2270             start_eol = edit_eol (edit, start_bol - 1) + 1;
2271             end_bol = edit_bol (edit, *end_mark);
2272             end_eol = edit_eol (edit, *end_mark);
2273             col1 = min (edit->column1, edit->column2);
2274             col2 = max (edit->column1, edit->column2);
2275
2276             diff1 = edit_move_forward3 (edit, start_bol, col2, 0) -
2277                 edit_move_forward3 (edit, start_bol, col1, 0);
2278             diff2 = edit_move_forward3 (edit, end_bol, col2, 0) -
2279                 edit_move_forward3 (edit, end_bol, col1, 0);
2280
2281             *start_mark -= diff1;
2282             *end_mark += diff2;
2283             *start_mark = max (*start_mark, start_eol);
2284             *end_mark = min (*end_mark, end_eol);
2285         }
2286         return 0;
2287     }
2288     else
2289     {
2290         *start_mark = *end_mark = 0;
2291         edit->column2 = edit->column1 = 0;
2292         return 1;
2293     }
2294 }
2295
2296 /* --------------------------------------------------------------------------------------------- */
2297
2298 void
2299 edit_insert_over (WEdit * edit)
2300 {
2301     int i;
2302
2303     for (i = 0; i < edit->over_col; i++)
2304     {
2305         edit_insert (edit, ' ');
2306     }
2307     edit->over_col = 0;
2308 }
2309
2310 /* --------------------------------------------------------------------------------------------- */
2311
2312 off_t
2313 edit_insert_column_of_text_from_file (WEdit * edit, int file,
2314                                       off_t * start_pos, off_t * end_pos, long *col1, long *col2)
2315 {
2316     off_t cursor;
2317     int col;
2318     off_t blocklen = -1, width = 0;
2319     unsigned char *data;
2320
2321     cursor = edit->curs1;
2322     col = edit_get_col (edit);
2323     data = g_malloc0 (TEMP_BUF_LEN);
2324
2325     while ((blocklen = mc_read (file, (char *) data, TEMP_BUF_LEN)) > 0)
2326     {
2327         off_t i;
2328         for (width = 0; width < blocklen; width++)
2329         {
2330             if (data[width] == '\n')
2331                 break;
2332         }
2333         for (i = 0; i < blocklen; i++)
2334         {
2335             if (data[i] == '\n')
2336             {                   /* fill in and move to next line */
2337                 long l;
2338                 off_t p;
2339                 if (edit_get_byte (edit, edit->curs1) != '\n')
2340                 {
2341                     l = width - (edit_get_col (edit) - col);
2342                     while (l > 0)
2343                     {
2344                         edit_insert (edit, ' ');
2345                         l -= space_width;
2346                     }
2347                 }
2348                 for (p = edit->curs1;; p++)
2349                 {
2350                     if (p == edit->last_byte)
2351                     {
2352                         edit_cursor_move (edit, edit->last_byte - edit->curs1);
2353                         edit_insert_ahead (edit, '\n');
2354                         p++;
2355                         break;
2356                     }
2357                     if (edit_get_byte (edit, p) == '\n')
2358                     {
2359                         p++;
2360                         break;
2361                     }
2362                 }
2363                 edit_cursor_move (edit, edit_move_forward3 (edit, p, col, 0) - edit->curs1);
2364                 l = col - edit_get_col (edit);
2365                 while (l >= space_width)
2366                 {
2367                     edit_insert (edit, ' ');
2368                     l -= space_width;
2369                 }
2370                 continue;
2371             }
2372             edit_insert (edit, data[i]);
2373         }
2374     }
2375     *col1 = col;
2376     *col2 = col + width;
2377     *start_pos = cursor;
2378     *end_pos = edit->curs1;
2379     edit_cursor_move (edit, cursor - edit->curs1);
2380     g_free (data);
2381
2382     return blocklen;
2383 }
2384
2385 /* --------------------------------------------------------------------------------------------- */
2386
2387 void
2388 edit_block_copy_cmd (WEdit * edit)
2389 {
2390     off_t start_mark, end_mark, current = edit->curs1;
2391     long col_delta = 0;
2392     off_t mark1, mark2;
2393     long c1, c2;
2394     off_t size;
2395     unsigned char *copy_buf;
2396
2397     edit_update_curs_col (edit);
2398     if (eval_marks (edit, &start_mark, &end_mark))
2399         return;
2400
2401     copy_buf = edit_get_block (edit, start_mark, end_mark, &size);
2402
2403     /* all that gets pushed are deletes hence little space is used on the stack */
2404
2405     edit_push_markers (edit);
2406
2407     if (edit->column_highlight)
2408     {
2409         col_delta = abs (edit->column2 - edit->column1);
2410         edit_insert_column_of_text (edit, copy_buf, size, col_delta, &mark1, &mark2, &c1, &c2);
2411     }
2412     else
2413     {
2414         int size_orig = size;
2415
2416         while (size-- != 0)
2417             edit_insert_ahead (edit, copy_buf[size]);
2418
2419         /* Place cursor at the end of text selection */
2420         if (option_cursor_after_inserted_block)
2421             edit_cursor_move (edit, size_orig);
2422     }
2423
2424     g_free (copy_buf);
2425     edit_scroll_screen_over_cursor (edit);
2426
2427     if (edit->column_highlight)
2428         edit_set_markers (edit, edit->curs1, mark2, c1, c2);
2429     else if (start_mark < current && end_mark > current)
2430         edit_set_markers (edit, start_mark, end_mark + end_mark - start_mark, 0, 0);
2431
2432     edit->force |= REDRAW_PAGE;
2433 }
2434
2435
2436 /* --------------------------------------------------------------------------------------------- */
2437
2438 void
2439 edit_block_move_cmd (WEdit * edit)
2440 {
2441     off_t current;
2442     unsigned char *copy_buf = NULL;
2443     off_t start_mark, end_mark;
2444
2445     if (eval_marks (edit, &start_mark, &end_mark))
2446         return;
2447
2448     if (!edit->column_highlight && edit->curs1 > start_mark && edit->curs1 < end_mark)
2449         return;
2450
2451     if (edit->mark2 < 0)
2452         edit_mark_cmd (edit, FALSE);
2453     edit_push_markers (edit);
2454
2455     if (edit->column_highlight)
2456     {
2457         off_t mark1, mark2;
2458         off_t size;
2459         long c1, c2, b_width;
2460         long x, x2;
2461
2462         c1 = min (edit->column1, edit->column2);
2463         c2 = max (edit->column1, edit->column2);
2464         b_width = c2 - c1;
2465
2466         edit_update_curs_col (edit);
2467
2468         x = edit->curs_col;
2469         x2 = x + edit->over_col;
2470
2471         /* do nothing when cursor inside first line of selected area */
2472         if ((edit_eol (edit, edit->curs1) == edit_eol (edit, start_mark)) && x2 > c1 && x2 <= c2)
2473             return;
2474
2475         if (edit->curs1 > start_mark && edit->curs1 < edit_eol (edit, end_mark))
2476         {
2477             if (x > c2)
2478                 x -= b_width;
2479             else if (x > c1 && x <= c2)
2480                 x = c1;
2481         }
2482         /* save current selection into buffer */
2483         copy_buf = edit_get_block (edit, start_mark, end_mark, &size);
2484
2485         /* remove current selection */
2486         edit_block_delete_cmd (edit);
2487
2488         edit->over_col = max (0, edit->over_col - b_width);
2489         /* calculate the cursor pos after delete block */
2490         current = edit_move_forward3 (edit, edit_bol (edit, edit->curs1), x, 0);
2491         edit_cursor_move (edit, current - edit->curs1);
2492         edit_scroll_screen_over_cursor (edit);
2493
2494         /* add TWS if need before block insertion */
2495         if (option_cursor_beyond_eol && edit->over_col > 0)
2496             edit_insert_over (edit);
2497
2498         edit_insert_column_of_text (edit, copy_buf, size, b_width, &mark1, &mark2, &c1, &c2);
2499         edit_set_markers (edit, mark1, mark2, c1, c2);
2500     }
2501     else
2502     {
2503         off_t count, count_orig;
2504
2505         current = edit->curs1;
2506         copy_buf = g_malloc0 (end_mark - start_mark);
2507         edit_cursor_move (edit, start_mark - edit->curs1);
2508         edit_scroll_screen_over_cursor (edit);
2509
2510         for (count = start_mark; count < end_mark; count++)
2511             copy_buf[end_mark - count - 1] = edit_delete (edit, TRUE);
2512
2513         edit_scroll_screen_over_cursor (edit);
2514         edit_cursor_move (edit,
2515                           current - edit->curs1 -
2516                           (((current - edit->curs1) > 0) ? end_mark - start_mark : 0));
2517         edit_scroll_screen_over_cursor (edit);
2518         count_orig = count;
2519         while (count-- > start_mark)
2520             edit_insert_ahead (edit, copy_buf[end_mark - count - 1]);
2521
2522         edit_set_markers (edit, edit->curs1, edit->curs1 + end_mark - start_mark, 0, 0);
2523
2524         /* Place cursor at the end of text selection */
2525         if (option_cursor_after_inserted_block)
2526             edit_cursor_move (edit, count_orig - start_mark);
2527     }
2528
2529     edit_scroll_screen_over_cursor (edit);
2530     g_free (copy_buf);
2531     edit->force |= REDRAW_PAGE;
2532 }
2533
2534 /* --------------------------------------------------------------------------------------------- */
2535 /** returns 1 if canceelled by user */
2536
2537 int
2538 edit_block_delete_cmd (WEdit * edit)
2539 {
2540     off_t start_mark, end_mark;
2541     if (eval_marks (edit, &start_mark, &end_mark))
2542     {
2543         edit_delete_line (edit);
2544         return 0;
2545     }
2546     return edit_block_delete (edit);
2547 }
2548
2549 /* --------------------------------------------------------------------------------------------- */
2550 /** call with edit = 0 before shutdown to close memory leaks */
2551
2552 void
2553 edit_replace_cmd (WEdit * edit, int again)
2554 {
2555     /* 1 = search string, 2 = replace with */
2556     static char *saved1 = NULL; /* saved default[123] */
2557     static char *saved2 = NULL;
2558     char *input1 = NULL;        /* user input from the dialog */
2559     char *input2 = NULL;
2560     GString *input2_str = NULL;
2561     char *disp1 = NULL;
2562     char *disp2 = NULL;
2563     long times_replaced = 0;
2564     gboolean once_found = FALSE;
2565
2566     if (!edit)
2567     {
2568         g_free (saved1), saved1 = NULL;
2569         g_free (saved2), saved2 = NULL;
2570         return;
2571     }
2572
2573     edit->force |= REDRAW_COMPLETELY;
2574
2575     if (again && !saved1 && !saved2)
2576         again = 0;
2577
2578     if (again)
2579     {
2580         input1 = g_strdup (saved1 ? saved1 : "");
2581         input2 = g_strdup (saved2 ? saved2 : "");
2582     }
2583     else
2584     {
2585         char *tmp_inp1, *tmp_inp2;
2586
2587         disp1 = edit_replace_cmd__conv_to_display (saved1 ? saved1 : (char *) "");
2588         disp2 = edit_replace_cmd__conv_to_display (saved2 ? saved2 : (char *) "");
2589
2590         edit_push_undo_action (edit, KEY_PRESS + edit->start_display);
2591
2592         editcmd_dialog_replace_show (edit, disp1, disp2, &input1, &input2);
2593
2594         g_free (disp1);
2595         g_free (disp2);
2596
2597         if (input1 == NULL || *input1 == '\0')
2598         {
2599             edit->force = REDRAW_COMPLETELY;
2600             goto cleanup;
2601         }
2602
2603         tmp_inp1 = input1;
2604         tmp_inp2 = input2;
2605         input1 = edit_replace_cmd__conv_to_input (input1);
2606         input2 = edit_replace_cmd__conv_to_input (input2);
2607         g_free (tmp_inp1);
2608         g_free (tmp_inp2);
2609
2610         g_free (saved1), saved1 = g_strdup (input1);
2611         g_free (saved2), saved2 = g_strdup (input2);
2612
2613         mc_search_free (edit->search);
2614         edit->search = NULL;
2615     }
2616
2617     input2_str = g_string_new (input2);
2618
2619     if (!edit->search)
2620     {
2621         edit->search = mc_search_new (input1, -1);
2622         if (edit->search == NULL)
2623         {
2624             edit->search_start = edit->curs1;
2625             goto cleanup;
2626         }
2627         edit->search->search_type = edit_search_options.type;
2628         edit->search->is_all_charsets = edit_search_options.all_codepages;
2629         edit->search->is_case_sensitive = edit_search_options.case_sens;
2630         edit->search->whole_words = edit_search_options.whole_words;
2631         edit->search->search_fn = edit_search_cmd_callback;
2632         edit->search_line_type = edit_get_search_line_type (edit->search);
2633         edit_search_fix_search_start_if_selection (edit);
2634     }
2635
2636     if (edit->found_len && edit->search_start == edit->found_start + 1
2637         && edit_search_options.backwards)
2638         edit->search_start--;
2639
2640     if (edit->found_len && edit->search_start == edit->found_start - 1
2641         && !edit_search_options.backwards)
2642         edit->search_start++;
2643
2644     do
2645     {
2646         gsize len = 0;
2647
2648         if (!editcmd_find (edit, &len))
2649         {
2650             if (!(edit->search->error == MC_SEARCH_E_OK ||
2651                   (once_found && edit->search->error == MC_SEARCH_E_NOTFOUND)))
2652             {
2653                 edit_error_dialog (_("Search"), edit->search->error_str);
2654             }
2655             break;
2656         }
2657         once_found = TRUE;
2658
2659         edit->search_start = edit->search->normal_offset;
2660         /*returns negative on not found or error in pattern */
2661
2662         if ((edit->search_start >= 0) && (edit->search_start < edit->last_byte))
2663         {
2664             gsize i;
2665             GString *repl_str;
2666
2667             edit->found_start = edit->search_start;
2668             i = edit->found_len = len;
2669
2670             edit_cursor_move (edit, edit->search_start - edit->curs1);
2671             edit_scroll_screen_over_cursor (edit);
2672
2673             if (edit->replace_mode == 0)
2674             {
2675                 long l;
2676                 int prompt;
2677
2678                 l = edit->curs_row - WIDGET (edit)->lines / 3;
2679                 if (l > 0)
2680                     edit_scroll_downward (edit, l);
2681                 if (l < 0)
2682                     edit_scroll_upward (edit, -l);
2683
2684                 edit_scroll_screen_over_cursor (edit);
2685                 edit->force |= REDRAW_PAGE;
2686                 edit_render_keypress (edit);
2687
2688                 /*so that undo stops at each query */
2689                 edit_push_key_press (edit);
2690                 /* and prompt 2/3 down */
2691                 disp1 = edit_replace_cmd__conv_to_display (saved1);
2692                 disp2 = edit_replace_cmd__conv_to_display (saved2);
2693                 prompt = editcmd_dialog_replace_prompt_show (edit, disp1, disp2, -1, -1);
2694                 g_free (disp1);
2695                 g_free (disp2);
2696
2697                 if (prompt == B_REPLACE_ALL)
2698                     edit->replace_mode = 1;
2699                 else if (prompt == B_SKIP_REPLACE)
2700                 {
2701                     if (edit_search_options.backwards)
2702                         edit->search_start--;
2703                     else
2704                         edit->search_start++;
2705                     continue;   /* loop */
2706                 }
2707                 else if (prompt == B_CANCEL)
2708                 {
2709                     edit->replace_mode = -1;
2710                     break;      /* loop */
2711                 }
2712             }
2713
2714             repl_str = mc_search_prepare_replace_str (edit->search, input2_str);
2715
2716             if (edit->search->error != MC_SEARCH_E_OK)
2717             {
2718                 edit_error_dialog (_("Replace"), edit->search->error_str);
2719                 g_string_free (repl_str, TRUE);
2720                 break;
2721             }
2722
2723             /* delete then insert new */
2724             for (i = 0; i < len; i++)
2725                 edit_delete (edit, TRUE);
2726
2727             for (i = 0; i < repl_str->len; i++)
2728                 edit_insert (edit, repl_str->str[i]);
2729
2730             edit->found_len = repl_str->len;
2731             g_string_free (repl_str, TRUE);
2732             times_replaced++;
2733
2734             /* so that we don't find the same string again */
2735             if (edit_search_options.backwards)
2736             {
2737                 edit->search_start--;
2738             }
2739             else
2740             {
2741                 edit->search_start += edit->found_len + (len == 0 ? 1 : 0);
2742
2743                 if (edit->search_start >= edit->last_byte)
2744                     break;
2745             }
2746
2747             edit_scroll_screen_over_cursor (edit);
2748         }
2749         else
2750         {
2751             /* try and find from right here for next search */
2752             edit->search_start = edit->curs1;
2753             edit_update_curs_col (edit);
2754
2755             edit->force |= REDRAW_PAGE;
2756             edit_render_keypress (edit);
2757
2758             if (times_replaced == 0)
2759                 query_dialog (_("Replace"), _("Search string not found"), D_NORMAL, 1, _("&OK"));
2760             break;
2761         }
2762     }
2763     while (edit->replace_mode >= 0);
2764
2765     edit_scroll_screen_over_cursor (edit);
2766     edit->force |= REDRAW_COMPLETELY;
2767     edit_render_keypress (edit);
2768
2769     if ((edit->replace_mode == 1) && (times_replaced != 0))
2770         message (D_NORMAL, _("Replace"), _("%ld replacements made"), times_replaced);
2771
2772   cleanup:
2773     g_free (input1);
2774     g_free (input2);
2775     if (input2_str != NULL)
2776         g_string_free (input2_str, TRUE);
2777 }
2778
2779 /* --------------------------------------------------------------------------------------------- */
2780
2781 mc_search_cbret_t
2782 edit_search_cmd_callback (const void *user_data, gsize char_offset, int *current_char)
2783 {
2784     *current_char = edit_get_byte ((WEdit *) user_data, (off_t) char_offset);
2785     return MC_SEARCH_CB_OK;
2786 }
2787
2788 /* --------------------------------------------------------------------------------------------- */
2789
2790 void
2791 edit_search_cmd (WEdit * edit, gboolean again)
2792 {
2793
2794     if (edit == NULL)
2795         return;
2796
2797     if (!again)
2798         edit_search (edit);
2799     else if (edit->last_search_string != NULL)
2800         edit_do_search (edit);
2801     else
2802     {
2803         /* find last search string in history */
2804         GList *history;
2805
2806         history = history_get (MC_HISTORY_SHARED_SEARCH);
2807         if (history != NULL && history->data != NULL)
2808         {
2809             edit->last_search_string = (char *) history->data;
2810             history->data = NULL;
2811             history = g_list_first (history);
2812             g_list_foreach (history, (GFunc) g_free, NULL);
2813             g_list_free (history);
2814
2815             edit->search = mc_search_new (edit->last_search_string, -1);
2816             if (edit->search == NULL)
2817             {
2818                 /* if not... then ask for an expression */
2819                 g_free (edit->last_search_string);
2820                 edit->last_search_string = NULL;
2821                 edit_search (edit);
2822             }
2823             else
2824             {
2825                 edit->search->search_type = edit_search_options.type;
2826                 edit->search->is_all_charsets = edit_search_options.all_codepages;
2827                 edit->search->is_case_sensitive = edit_search_options.case_sens;
2828                 edit->search->whole_words = edit_search_options.whole_words;
2829                 edit->search->search_fn = edit_search_cmd_callback;
2830                 edit->search_line_type = edit_get_search_line_type (edit->search);
2831                 edit_do_search (edit);
2832             }
2833         }
2834         else
2835         {
2836             /* if not... then ask for an expression */
2837             g_free (edit->last_search_string);
2838             edit->last_search_string = NULL;
2839             edit_search (edit);
2840         }
2841     }
2842 }
2843
2844
2845 /* --------------------------------------------------------------------------------------------- */
2846 /**
2847   * Check if it's OK to close the file. If there are unsaved changes, ask user.
2848   *
2849   * @return TRUE if it's OK to exit, FALSE to continue editing.
2850   */
2851
2852 gboolean
2853 edit_ok_to_exit (WEdit * edit)
2854 {
2855     char *fname = (char *) N_("[NoName]");
2856     char *msg;
2857     int act;
2858
2859     if (!edit->modified)
2860         return TRUE;
2861
2862     if (edit->filename_vpath != NULL)
2863         fname = vfs_path_to_str (edit->filename_vpath);
2864 #ifdef ENABLE_NLS
2865     else
2866         fname = g_strdup (_(fname));
2867 #else
2868     else
2869         fname = g_strdup (fname);
2870 #endif
2871
2872     if (!mc_global.midnight_shutdown)
2873     {
2874         if (!edit_check_newline (edit))
2875         {
2876             g_free (fname);
2877             return FALSE;
2878         }
2879
2880         query_set_sel (2);
2881
2882         msg = g_strdup_printf (_("File %s was modified.\nSave before close?"), fname);
2883         act = edit_query_dialog3 (_("Close file"), msg, _("&Yes"), _("&No"), _("&Cancel"));
2884     }
2885     else
2886     {
2887         msg = g_strdup_printf (_("Midnight Commander is being shut down.\nSave modified file %s?"),
2888                                fname);
2889         act = edit_query_dialog2 (_("Quit"), msg, _("&Yes"), _("&No"));
2890
2891         /* Esc is No */
2892         if (act == -1)
2893             act = 1;
2894     }
2895
2896     g_free (msg);
2897     g_free (fname);
2898
2899     switch (act)
2900     {
2901     case 0:                    /* Yes */
2902         edit_push_markers (edit);
2903         edit_set_markers (edit, 0, 0, 0, 0);
2904         if (!edit_save_cmd (edit) || mc_global.midnight_shutdown)
2905             return mc_global.midnight_shutdown;
2906         break;
2907     case 1:                    /* No */
2908         break;
2909     case 2:                    /* Cancel quit */
2910     case -1:                   /* Esc */
2911         return FALSE;
2912     }
2913
2914     return TRUE;
2915 }
2916
2917 /* --------------------------------------------------------------------------------------------- */
2918 /** save block, returns TRUE on success */
2919
2920 gboolean
2921 edit_save_block (WEdit * edit, const char *filename, off_t start, off_t finish)
2922 {
2923     int file;
2924     off_t len = 1;
2925     vfs_path_t *vpath;
2926
2927     vpath = vfs_path_from_str (filename);
2928     file = mc_open (vpath, O_CREAT | O_WRONLY | O_TRUNC,
2929                     S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH | O_BINARY);
2930     vfs_path_free (vpath);
2931     if (file == -1)
2932         return FALSE;
2933
2934     if (edit->column_highlight)
2935     {
2936         int r;
2937
2938         r = mc_write (file, VERTICAL_MAGIC, sizeof (VERTICAL_MAGIC));
2939         if (r > 0)
2940         {
2941             unsigned char *block, *p;
2942
2943             p = block = edit_get_block (edit, start, finish, &len);
2944             while (len)
2945             {
2946                 r = mc_write (file, p, len);
2947                 if (r < 0)
2948                     break;
2949                 p += r;
2950                 len -= r;
2951             }
2952             g_free (block);
2953         }
2954     }
2955     else
2956     {
2957         unsigned char *buf;
2958         off_t i = start;
2959         off_t end;
2960
2961         len = finish - start;
2962         buf = g_malloc0 (TEMP_BUF_LEN);
2963         while (start != finish)
2964         {
2965             end = min (finish, start + TEMP_BUF_LEN);
2966             for (; i < end; i++)
2967                 buf[i - start] = edit_get_byte (edit, i);
2968             len -= mc_write (file, (char *) buf, end - start);
2969             start = end;
2970         }
2971         g_free (buf);
2972     }
2973     mc_close (file);
2974
2975     return (len == 0);
2976 }
2977
2978 /* --------------------------------------------------------------------------------------------- */
2979
2980 void
2981 edit_paste_from_history (WEdit * edit)
2982 {
2983     (void) edit;
2984     edit_error_dialog (_("Error"), _("This function is not implemented"));
2985 }
2986
2987 /* --------------------------------------------------------------------------------------------- */
2988
2989 gboolean
2990 edit_copy_to_X_buf_cmd (WEdit * edit)
2991 {
2992     off_t start_mark, end_mark;
2993
2994     if (eval_marks (edit, &start_mark, &end_mark))
2995         return TRUE;
2996     if (!edit_save_block_to_clip_file (edit, start_mark, end_mark))
2997     {
2998         edit_error_dialog (_("Copy to clipboard"), get_sys_error (_("Unable to save to file")));
2999         return FALSE;
3000     }
3001     /* try use external clipboard utility */
3002     mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_file_to_ext_clip", NULL);
3003
3004     return TRUE;
3005 }
3006
3007 /* --------------------------------------------------------------------------------------------- */
3008
3009 gboolean
3010 edit_cut_to_X_buf_cmd (WEdit * edit)
3011 {
3012     off_t start_mark, end_mark;
3013
3014     if (eval_marks (edit, &start_mark, &end_mark))
3015         return TRUE;
3016     if (!edit_save_block_to_clip_file (edit, start_mark, end_mark))
3017     {
3018         edit_error_dialog (_("Cut to clipboard"), _("Unable to save to file"));
3019         return FALSE;
3020     }
3021     /* try use external clipboard utility */
3022     mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_file_to_ext_clip", NULL);
3023
3024     edit_block_delete_cmd (edit);
3025     edit_mark_cmd (edit, TRUE);
3026
3027     return TRUE;
3028 }
3029
3030 /* --------------------------------------------------------------------------------------------- */
3031
3032 gboolean
3033 edit_paste_from_X_buf_cmd (WEdit * edit)
3034 {
3035     vfs_path_t *tmp;
3036     gboolean ret;
3037
3038     /* try use external clipboard utility */
3039     mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_file_from_ext_clip", NULL);
3040     tmp = mc_config_get_full_vpath (EDIT_CLIP_FILE);
3041     ret = (edit_insert_file (edit, tmp) >= 0);
3042     vfs_path_free (tmp);
3043
3044     return ret;
3045 }
3046
3047 /* --------------------------------------------------------------------------------------------- */
3048 /**
3049  * Ask user for the line and go to that line.
3050  * Negative numbers mean line from the end (i.e. -1 is the last line).
3051  */
3052
3053 void
3054 edit_goto_cmd (WEdit * edit)
3055 {
3056     char *f;
3057     static long line = 0;       /* line as typed, saved as default */
3058     long l;
3059     char *error;
3060     char s[32];
3061
3062     g_snprintf (s, sizeof (s), "%ld", line);
3063     f = input_dialog (_("Goto line"), _("Enter line:"), MC_HISTORY_EDIT_GOTO_LINE, line ? s : "",
3064                       INPUT_COMPLETE_NONE);
3065     if (!f)
3066         return;
3067
3068     if (!*f)
3069     {
3070         g_free (f);
3071         return;
3072     }
3073
3074     l = strtol (f, &error, 0);
3075     if (*error)
3076     {
3077         g_free (f);
3078         return;
3079     }
3080
3081     line = l;
3082     if (l < 0)
3083         l = edit->total_lines + l + 2;
3084     edit_move_display (edit, l - WIDGET (edit)->lines / 2 - 1);
3085     edit_move_to_line (edit, l - 1);
3086     edit->force |= REDRAW_COMPLETELY;
3087     g_free (f);
3088 }
3089
3090
3091 /* --------------------------------------------------------------------------------------------- */
3092 /** Return TRUE on success */
3093
3094 gboolean
3095 edit_save_block_cmd (WEdit * edit)
3096 {
3097     off_t start_mark, end_mark;
3098     char *exp, *tmp;
3099     gboolean ret = FALSE;
3100
3101     if (eval_marks (edit, &start_mark, &end_mark))
3102         return TRUE;
3103
3104     tmp = mc_config_get_full_path (EDIT_CLIP_FILE);
3105     exp =
3106         input_expand_dialog (_("Save block"), _("Enter file name:"),
3107                              MC_HISTORY_EDIT_SAVE_BLOCK, tmp, INPUT_COMPLETE_FILENAMES);
3108     g_free (tmp);
3109     edit_push_undo_action (edit, KEY_PRESS + edit->start_display);
3110
3111     if (exp != NULL && *exp != '\0')
3112     {
3113         if (edit_save_block (edit, exp, start_mark, end_mark))
3114             ret = TRUE;
3115         else
3116             edit_error_dialog (_("Save block"), get_sys_error (_("Cannot save file")));
3117
3118         edit->force |= REDRAW_COMPLETELY;
3119     }
3120
3121     g_free (exp);
3122
3123     return ret;
3124 }
3125
3126
3127 /* --------------------------------------------------------------------------------------------- */
3128
3129 /** returns TRUE on success */
3130 gboolean
3131 edit_insert_file_cmd (WEdit * edit)
3132 {
3133     char *tmp;
3134     char *exp;
3135     gboolean ret = FALSE;
3136
3137     tmp = mc_config_get_full_path (EDIT_CLIP_FILE);
3138     exp = input_expand_dialog (_("Insert file"), _("Enter file name:"),
3139                                MC_HISTORY_EDIT_INSERT_FILE, tmp, INPUT_COMPLETE_FILENAMES);
3140     g_free (tmp);
3141
3142     edit_push_undo_action (edit, KEY_PRESS + edit->start_display);
3143
3144     if (exp != NULL && *exp != '\0')
3145     {
3146         vfs_path_t *exp_vpath;
3147
3148         exp_vpath = vfs_path_from_str (exp);
3149         ret = (edit_insert_file (edit, exp_vpath) >= 0);
3150         vfs_path_free (exp_vpath);
3151
3152         if (!ret)
3153             edit_error_dialog (_("Insert file"), get_sys_error (_("Cannot insert file")));
3154     }
3155
3156     g_free (exp);
3157
3158     edit->force |= REDRAW_COMPLETELY;
3159     return ret;
3160 }
3161
3162 /* --------------------------------------------------------------------------------------------- */
3163 /** sorts a block, returns -1 on system fail, 1 on cancel and 0 on success */
3164
3165 int
3166 edit_sort_cmd (WEdit * edit)
3167 {
3168     static char *old = 0;
3169     char *exp, *tmp, *tmp_edit_block_name, *tmp_edit_temp_name;
3170     off_t start_mark, end_mark;
3171     int e;
3172
3173     if (eval_marks (edit, &start_mark, &end_mark))
3174     {
3175         edit_error_dialog (_("Sort block"), _("You must first highlight a block of text"));
3176         return 0;
3177     }
3178
3179     tmp = mc_config_get_full_path (EDIT_BLOCK_FILE);
3180     edit_save_block (edit, tmp, start_mark, end_mark);
3181     g_free (tmp);
3182
3183     exp = input_dialog (_("Run sort"),
3184                         _("Enter sort options (see manpage) separated by whitespace:"),
3185                         MC_HISTORY_EDIT_SORT, (old != NULL) ? old : "", INPUT_COMPLETE_NONE);
3186
3187     if (!exp)
3188         return 1;
3189     g_free (old);
3190     old = exp;
3191     tmp_edit_block_name = mc_config_get_full_path (EDIT_BLOCK_FILE);
3192     tmp_edit_temp_name = mc_config_get_full_path (EDIT_TEMP_FILE);
3193     tmp =
3194         g_strconcat (" sort ", exp, " ", tmp_edit_block_name,
3195                      " > ", tmp_edit_temp_name, (char *) NULL);
3196     g_free (tmp_edit_temp_name);
3197     g_free (tmp_edit_block_name);
3198
3199     e = system (tmp);
3200     g_free (tmp);
3201     if (e)
3202     {
3203         if (e == -1 || e == 127)
3204         {
3205             edit_error_dialog (_("Sort"), get_sys_error (_("Cannot execute sort command")));
3206         }
3207         else
3208         {
3209             char q[8];
3210             sprintf (q, "%d ", e);
3211             tmp = g_strdup_printf (_("Sort returned non-zero: %s"), q);
3212             edit_error_dialog (_("Sort"), tmp);
3213             g_free (tmp);
3214         }
3215         return -1;
3216     }
3217
3218     edit->force |= REDRAW_COMPLETELY;
3219
3220     if (edit_block_delete_cmd (edit))
3221         return 1;
3222
3223     {
3224         vfs_path_t *tmp_vpath;
3225
3226         tmp_vpath = mc_config_get_full_vpath (EDIT_TEMP_FILE);
3227         edit_insert_file (edit, tmp_vpath);
3228         vfs_path_free (tmp_vpath);
3229     }
3230     return 0;
3231 }
3232
3233 /* --------------------------------------------------------------------------------------------- */
3234 /**
3235  * Ask user for a command, execute it and paste its output back to the
3236  * editor.
3237  */
3238
3239 int
3240 edit_ext_cmd (WEdit * edit)
3241 {
3242     char *exp, *tmp, *tmp_edit_temp_file;
3243     int e;
3244
3245     exp =
3246         input_dialog (_("Paste output of external command"),
3247                       _("Enter shell command(s):"), MC_HISTORY_EDIT_PASTE_EXTCMD, NULL,
3248                       INPUT_COMPLETE_FILENAMES | INPUT_COMPLETE_VARIABLES | INPUT_COMPLETE_USERNAMES
3249                       | INPUT_COMPLETE_HOSTNAMES | INPUT_COMPLETE_CD | INPUT_COMPLETE_COMMANDS |
3250                       INPUT_COMPLETE_SHELL_ESC);
3251
3252     if (!exp)
3253         return 1;
3254
3255     tmp_edit_temp_file = mc_config_get_full_path (EDIT_TEMP_FILE);
3256     tmp = g_strconcat (exp, " > ", tmp_edit_temp_file, (char *) NULL);
3257     g_free (tmp_edit_temp_file);
3258     e = system (tmp);
3259     g_free (tmp);
3260     g_free (exp);
3261
3262     if (e)
3263     {
3264         edit_error_dialog (_("External command"), get_sys_error (_("Cannot execute command")));
3265         return -1;
3266     }
3267
3268     edit->force |= REDRAW_COMPLETELY;
3269
3270     {
3271         vfs_path_t *tmp_vpath;
3272
3273         tmp_vpath = mc_config_get_full_vpath (EDIT_TEMP_FILE);
3274         edit_insert_file (edit, tmp_vpath);
3275         vfs_path_free (tmp_vpath);
3276     }
3277     return 0;
3278 }
3279
3280 /* --------------------------------------------------------------------------------------------- */
3281 /** if block is 1, a block must be highlighted and the shell command
3282    processes it. If block is 0 the shell command is a straight system
3283    command, that just produces some output which is to be inserted */
3284
3285 void
3286 edit_block_process_cmd (WEdit * edit, int macro_number)
3287 {
3288     char *fname;
3289     char *macros_fname = NULL;
3290
3291     fname = g_strdup_printf ("%s.%i.sh", MC_EXTMACRO_FILE, macro_number);
3292     macros_fname = g_build_filename (mc_config_get_data_path (), fname, (char *) NULL);
3293     user_menu (edit, macros_fname, 0);
3294     g_free (fname);
3295     g_free (macros_fname);
3296     edit->force |= REDRAW_COMPLETELY;
3297 }
3298
3299 /* --------------------------------------------------------------------------------------------- */
3300
3301 void
3302 edit_mail_dialog (WEdit * edit)
3303 {
3304     char *tmail_to;
3305     char *tmail_subject;
3306     char *tmail_cc;
3307
3308     static char *mail_cc_last = 0;
3309     static char *mail_subject_last = 0;
3310     static char *mail_to_last = 0;
3311
3312
3313     quick_widget_t quick_widgets[] = {
3314         /* *INDENT-OFF* */
3315         QUICK_LABEL (N_("mail -s <subject> -c <cc> <to>"), NULL),
3316         QUICK_LABELED_INPUT (N_("To"), input_label_above,
3317                              mail_to_last != NULL ? mail_to_last : "", "mail-dlg-input-3",
3318                              &tmail_to, NULL, FALSE, FALSE, INPUT_COMPLETE_USERNAMES),
3319         QUICK_LABELED_INPUT (N_("Subject"), input_label_above,
3320                               mail_subject_last != NULL ? mail_subject_last : "", "mail-dlg-input-2",
3321                               &tmail_subject, NULL, FALSE, FALSE, INPUT_COMPLETE_NONE),
3322         QUICK_LABELED_INPUT (N_("Copies to"), input_label_above,
3323                              mail_cc_last != NULL ? mail_cc_last  : "", "mail-dlg-input",
3324                              &tmail_cc, NULL, FALSE, FALSE, INPUT_COMPLETE_USERNAMES),
3325         QUICK_BUTTONS_OK_CANCEL,
3326         QUICK_END
3327         /* *INDENT-ON* */
3328     };
3329
3330     quick_dialog_t qdlg = {
3331         -1, -1, 50,
3332         N_("Mail"), "[Input Line Keys]",
3333         quick_widgets, NULL, NULL
3334     };
3335
3336     if (quick_dialog (&qdlg) != B_CANCEL)
3337     {
3338         g_free (mail_cc_last);
3339         g_free (mail_subject_last);
3340         g_free (mail_to_last);
3341         mail_cc_last = tmail_cc;
3342         mail_subject_last = tmail_subject;
3343         mail_to_last = tmail_to;
3344         pipe_mail (edit, mail_to_last, mail_subject_last, mail_cc_last);
3345     }
3346 }
3347
3348 /* --------------------------------------------------------------------------------------------- */
3349
3350 /*******************/
3351 /* Word Completion */
3352 /*******************/
3353
3354 /**
3355  * Complete current word using regular expression search
3356  * backwards beginning at the current cursor position.
3357  */
3358
3359 void
3360 edit_complete_word_cmd (WEdit * edit)
3361 {
3362     gsize i, max_len, word_len = 0, num_compl = 0;
3363     off_t word_start = 0;
3364     unsigned char *bufpos;
3365     char *match_expr;
3366     struct selection compl[MAX_WORD_COMPLETIONS];       /* completions */
3367
3368     /* search start of word to be completed */
3369     if (!edit_find_word_start (edit, &word_start, &word_len))
3370         return;
3371
3372     /* prepare match expression */
3373     bufpos = &edit->buffers1[word_start >> S_EDIT_BUF_SIZE][word_start & M_EDIT_BUF_SIZE];
3374
3375     /* match_expr = g_strdup_printf ("\\b%.*s[a-zA-Z_0-9]+", word_len, bufpos); */
3376     match_expr =
3377         g_strdup_printf
3378         ("(^|\\s+|\\b)%.*s[^\\s\\.=\\+\\[\\]\\(\\)\\,\\;\\:\\\"\\'\\-\\?\\/\\|\\\\\\{\\}\\*\\&\\^\\%%\\$#@\\!]+",
3379          (int) word_len, bufpos);
3380
3381     /* collect the possible completions              */
3382     /* start search from begin to end of file */
3383     max_len =
3384         edit_collect_completions (edit, word_start, word_len, match_expr,
3385                                   (struct selection *) &compl, &num_compl);
3386
3387     if (num_compl > 0)
3388     {
3389         /* insert completed word if there is only one match */
3390         if (num_compl == 1)
3391         {
3392             for (i = word_len; i < compl[0].len; i++)
3393                 edit_insert (edit, *(compl[0].text + i));
3394         }
3395         /* more than one possible completion => ask the user */
3396         else
3397         {
3398             /* !!! usually only a beep is expected and when <ALT-TAB> is !!! */
3399             /* !!! pressed again the selection dialog pops up, but that  !!! */
3400             /* !!! seems to require a further internal state             !!! */
3401             /*tty_beep (); */
3402
3403             /* let the user select the preferred completion */
3404             editcmd_dialog_completion_show (edit, max_len, word_len,
3405                                             (struct selection *) &compl, num_compl);
3406         }
3407     }
3408
3409     g_free (match_expr);
3410     /* release memory before return */
3411     for (i = 0; i < num_compl; i++)
3412         g_free (compl[i].text);
3413 }
3414
3415 /* --------------------------------------------------------------------------------------------- */
3416
3417 #ifdef HAVE_CHARSET
3418 void
3419 edit_select_codepage_cmd (WEdit * edit)
3420 {
3421     if (do_select_codepage ())
3422         edit_set_codeset (edit);
3423
3424     edit->force = REDRAW_PAGE;
3425     send_message (edit, NULL, MSG_DRAW, 0, NULL);
3426 }
3427 #endif
3428
3429 /* --------------------------------------------------------------------------------------------- */
3430
3431 void
3432 edit_insert_literal_cmd (WEdit * edit)
3433 {
3434     int char_for_insertion;
3435
3436     char_for_insertion = editcmd_dialog_raw_key_query (_("Insert literal"),
3437                                                        _("Press any key:"), FALSE);
3438     edit_execute_key_command (edit, -1, ascii_alpha_to_cntrl (char_for_insertion));
3439 }
3440
3441 /* --------------------------------------------------------------------------------------------- */
3442
3443 void
3444 edit_begin_end_macro_cmd (WEdit * edit)
3445 {
3446     /* edit is a pointer to the widget */
3447     if (edit != NULL)
3448     {
3449         unsigned long command = macro_index < 0 ? CK_MacroStartRecord : CK_MacroStopRecord;
3450         edit_execute_key_command (edit, command, -1);
3451     }
3452 }
3453
3454  /* --------------------------------------------------------------------------------------------- */
3455
3456 void
3457 edit_begin_end_repeat_cmd (WEdit * edit)
3458 {
3459     /* edit is a pointer to the widget */
3460     if (edit != NULL)
3461     {
3462         unsigned long command = macro_index < 0 ? CK_RepeatStartRecord : CK_RepeatStopRecord;
3463         edit_execute_key_command (edit, command, -1);
3464     }
3465 }
3466
3467 /* --------------------------------------------------------------------------------------------- */
3468
3469 gboolean
3470 edit_load_forward_cmd (WEdit * edit)
3471 {
3472     if (edit->modified
3473         && edit_query_dialog2 (_("Warning"),
3474                                _("Current text was modified without a file save.\n"
3475                                  "Continue discards these changes"), _("C&ontinue"),
3476                                _("&Cancel")) == 1)
3477     {
3478         edit->force |= REDRAW_COMPLETELY;
3479         return TRUE;
3480     }
3481
3482     if (edit_stack_iterator + 1 >= MAX_HISTORY_MOVETO)
3483         return FALSE;
3484
3485     if (edit_history_moveto[edit_stack_iterator + 1].line < 1)
3486         return FALSE;
3487
3488     edit_stack_iterator++;
3489     if (edit_history_moveto[edit_stack_iterator].filename_vpath != NULL)
3490         return edit_reload_line (edit, edit_history_moveto[edit_stack_iterator].filename_vpath,
3491                                  edit_history_moveto[edit_stack_iterator].line);
3492
3493     return FALSE;
3494 }
3495
3496 /* --------------------------------------------------------------------------------------------- */
3497
3498 gboolean
3499 edit_load_back_cmd (WEdit * edit)
3500 {
3501     if (edit->modified
3502         && edit_query_dialog2 (_("Warning"),
3503                                _("Current text was modified without a file save.\n"
3504                                  "Continue discards these changes"), _("C&ontinue"),
3505                                _("&Cancel")) == 1)
3506     {
3507         edit->force |= REDRAW_COMPLETELY;
3508         return TRUE;
3509     }
3510
3511     /* we are in the bottom of the stack, NO WAY! */
3512     if (edit_stack_iterator == 0)
3513         return FALSE;
3514
3515     edit_stack_iterator--;
3516     if (edit_history_moveto[edit_stack_iterator].filename_vpath != NULL)
3517         return edit_reload_line (edit, edit_history_moveto[edit_stack_iterator].filename_vpath,
3518                                  edit_history_moveto[edit_stack_iterator].line);
3519
3520     return FALSE;
3521 }
3522
3523 /* --------------------------------------------------------------------------------------------- */
3524
3525 void
3526 edit_get_match_keyword_cmd (WEdit * edit)
3527 {
3528     gsize word_len = 0, max_len = 0;
3529     int num_def = 0;
3530     int i;
3531     off_t word_start = 0;
3532     unsigned char *bufpos;
3533     char *match_expr;
3534     char *path = NULL;
3535     char *ptr = NULL;
3536     char *tagfile = NULL;
3537
3538     etags_hash_t def_hash[MAX_DEFINITIONS];
3539
3540     for (i = 0; i < MAX_DEFINITIONS; i++)
3541     {
3542         def_hash[i].filename = NULL;
3543     }
3544
3545     /* search start of word to be completed */
3546     if (!edit_find_word_start (edit, &word_start, &word_len))
3547         return;
3548
3549     /* prepare match expression */
3550     bufpos = &edit->buffers1[word_start >> S_EDIT_BUF_SIZE][word_start & M_EDIT_BUF_SIZE];
3551     match_expr = g_strdup_printf ("%.*s", (int) word_len, bufpos);
3552
3553     ptr = g_get_current_dir ();
3554     path = g_strconcat (ptr, G_DIR_SEPARATOR_S, (char *) NULL);
3555     g_free (ptr);
3556
3557     /* Recursive search file 'TAGS' in parent dirs */
3558     do
3559     {
3560         ptr = g_path_get_dirname (path);
3561         g_free (path);
3562         path = ptr;
3563         g_free (tagfile);
3564         tagfile = mc_build_filename (path, TAGS_NAME, (char *) NULL);
3565         if (exist_file (tagfile))
3566             break;
3567     }
3568     while (strcmp (path, G_DIR_SEPARATOR_S) != 0);
3569
3570     if (tagfile)
3571     {
3572         num_def =
3573             etags_set_definition_hash (tagfile, path, match_expr, (etags_hash_t *) & def_hash);
3574         g_free (tagfile);
3575     }
3576     g_free (path);
3577
3578     max_len = MAX_WIDTH_DEF_DIALOG;
3579     word_len = 0;
3580     if (num_def > 0)
3581     {
3582         editcmd_dialog_select_definition_show (edit, match_expr, max_len, word_len,
3583                                                (etags_hash_t *) & def_hash, num_def);
3584     }
3585     g_free (match_expr);
3586 }
3587
3588 /* --------------------------------------------------------------------------------------------- */
3589
3590 #ifdef HAVE_ASPELL
3591 int
3592 edit_suggest_current_word (WEdit * edit)
3593 {
3594     gsize cut_len = 0;
3595     gsize word_len = 0;
3596     off_t word_start = 0;
3597     int retval = B_SKIP_WORD;
3598     char *match_word;
3599
3600     /* search start of word to spell check */
3601     match_word = edit_get_word_from_pos (edit, edit->curs1, &word_start, &word_len, &cut_len);
3602
3603 #ifdef HAVE_CHARSET
3604     if (mc_global.source_codepage >= 0 && (mc_global.source_codepage != mc_global.display_codepage))
3605     {
3606         GString *tmp_word;
3607
3608         tmp_word = str_convert_to_display (match_word);
3609         g_free (match_word);
3610         match_word = g_string_free (tmp_word, FALSE);
3611     }
3612 #endif
3613     if (!aspell_check (match_word, (int) word_len))
3614     {
3615         GArray *suggest;
3616         unsigned int res;
3617
3618         suggest = g_array_new (TRUE, FALSE, sizeof (char *));
3619
3620         res = aspell_suggest (suggest, match_word, (int) word_len);
3621         if (res != 0)
3622         {
3623             char *new_word = NULL;
3624
3625             edit->found_start = word_start;
3626             edit->found_len = word_len;
3627             edit->force |= REDRAW_PAGE;
3628             edit_scroll_screen_over_cursor (edit);
3629             edit_render_keypress (edit);
3630
3631             retval = spell_dialog_spell_suggest_show (edit, match_word, &new_word, suggest);
3632             edit_cursor_move (edit, word_len - cut_len);
3633
3634             if (retval == B_ENTER && new_word != NULL)
3635             {
3636                 guint i;
3637                 char *cp_word;
3638
3639 #ifdef HAVE_CHARSET
3640                 if (mc_global.source_codepage >= 0 &&
3641                     (mc_global.source_codepage != mc_global.display_codepage))
3642                 {
3643                     GString *tmp_word;
3644
3645                     tmp_word = str_convert_to_input (new_word);
3646                     g_free (new_word);
3647                     new_word = g_string_free (tmp_word, FALSE);
3648                 }
3649 #endif
3650                 cp_word = new_word;
3651                 for (i = 0; i < word_len; i++)
3652                     edit_backspace (edit, TRUE);
3653                 for (; *new_word; new_word++)
3654                     edit_insert (edit, *new_word);
3655                 g_free (cp_word);
3656             }
3657             else if (retval == B_ADD_WORD && match_word != NULL)
3658                 aspell_add_to_dict (match_word, (int) word_len);
3659         }
3660
3661         g_array_free (suggest, TRUE);
3662         edit->found_start = 0;
3663         edit->found_len = 0;
3664     }
3665     g_free (match_word);
3666     return retval;
3667 }
3668
3669 /* --------------------------------------------------------------------------------------------- */
3670
3671 void
3672 edit_spellcheck_file (WEdit * edit)
3673 {
3674     if (edit->curs_line > 0)
3675     {
3676         edit_cursor_move (edit, -edit->curs1);
3677         edit_move_to_prev_col (edit, 0);
3678         edit_update_curs_row (edit);
3679     }
3680
3681     do
3682     {
3683         int c1, c2;
3684
3685         c2 = edit_get_byte (edit, edit->curs1);
3686
3687         do
3688         {
3689             if (edit->curs1 >= edit->last_byte)
3690                 return;
3691
3692             c1 = c2;
3693             edit_cursor_move (edit, 1);
3694             c2 = edit_get_byte (edit, edit->curs1);
3695         }
3696         while (is_break_char (c1) || is_break_char (c2));
3697     }
3698     while (edit_suggest_current_word (edit) != B_CANCEL);
3699 }
3700
3701 /* --------------------------------------------------------------------------------------------- */
3702
3703 void
3704 edit_set_spell_lang (void)
3705 {
3706     GArray *lang_list;
3707
3708     lang_list = g_array_new (TRUE, FALSE, sizeof (char *));
3709     if (aspell_get_lang_list (lang_list) != 0)
3710     {
3711         char *lang;
3712
3713         lang = spell_dialog_lang_list_show (lang_list);
3714         if (lang != NULL)
3715             (void) aspell_set_lang (lang);
3716     }
3717     aspell_array_clean (lang_list);
3718 }
3719 #endif /* HAVE_ASPELL */
3720
3721 /* --------------------------------------------------------------------------------------------- */