src/user.c

   1 /* User Menu implementation
   2    Copyright (C) 1994 Miguel de Icaza, Janne Kukonlehto
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software
  16    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 #include <config.h>
  19 #include <stdio.h>
  20 #include <string.h>
  21 #include <ctype.h>
  22 #include <errno.h>
  23
  24 #include "global.h"
  25 #include "tty.h"
  26 #include "color.h"
  27 #include "dir.h"
  28 #include "panel.h"
  29 #include "main.h"
  30 #include "subshell.h"           /* for subshell_pty */
  31 #include "user.h"
  32 #include "layout.h"
  33 #include "execute.h"
  34 #include "setup.h"
  35
  36 #include "../edit/edit.h"               /* BLOCK_FILE */
  37 #include "../edit/edit-widget.h"        /* WEdit */
  38
  39 /* For the simple listbox manager */
  40 #include "dialog.h"
  41 #include "widget.h"
  42 #include "wtools.h"
  43
  44 #include "view.h" /* for default_* externs */
  45
  46 #define MAX_ENTRIES 16
  47 #define MAX_ENTRY_LEN 60
  48
  49 static int debug_flag = 0;
  50 static int debug_error = 0;
  51 static char *menu = NULL;
  52
  53 /* Formats defined:
  54    %%  The % character
  55    %f  The current file (if non-local vfs, file will be copied locally and
  56        %f will be full path to it).
  57    %p  The current file
  58    %d  The current working directory
  59    %s  "Selected files"; the tagged files if any, otherwise the current file
  60    %t  Tagged files
  61    %u  Tagged files (and they are untagged on return from expand_format)
  62    %view Runs the commands and pipes standard output to the view command.
  63        If %view is immediately followed by '{', recognize keywords
  64        ascii, hex, nroff and unform
  65
  66    If the format letter is in uppercase, it refers to the other panel.
  67
  68    With a number followed the % character you can turn quoting on (default)
  69    and off. For example:
  70        %f    quote expanded macro
  71        %1f   ditto
  72        %0f   don't quote expanded macro
  73
  74    expand_format returns a memory block that must be free()d.
  75 */
  76
  77 /* Returns how many characters we should advance if %view was found */
  78 int check_format_view (const char *p)
  79 {
  80     const char *q = p;
  81     if (!strncmp (p, "view", 4)) {
  82         q += 4;
  83         if (*q == '{'){
  84             for (q++;*q && *q != '}';q++) {
  85                 if (!strncmp (q, "ascii", 5)) {
  86                     default_hex_mode = 0;
  87                     q += 4;
  88                 } else if (!strncmp (q, "hex", 3)) {
  89                     default_hex_mode = 1;
  90                     q += 2;
  91                 } else if (!strncmp (q, "nroff", 5)) {
  92                     default_nroff_flag = 1;
  93                     q += 4;
  94                 } else if (!strncmp (q, "unform", 6)) {
  95                     default_nroff_flag = 0;
  96                     q += 5;
  97                 }
  98             }
  99             if (*q == '}')
 100                 q++;
 101         }
 102         return q - p;
 103     }
 104     return 0;
 105 }
 106
 107 int check_format_cd (const char *p)
 108 {
 109     return (strncmp (p, "cd", 2)) ? 0 : 3;
 110 }
 111
 112 /* Check if p has a "^var\{var-name\}" */
 113 /* Returns the number of skipped characters (zero on not found) */
 114 /* V will be set to the expanded variable name */
 115 int check_format_var (const char *p, char **v)
 116 {
 117     const char *q = p;
 118     char *var_name;
 119     char *value;
 120     const char *dots = 0;
 121
 122     *v = 0;
 123     if (!strncmp (p, "var{", 4)){
 124         for (q += 4; *q && *q != '}'; q++){
 125             if (*q == ':')
 126                 dots = q+1;
 127         }
 128         if (!*q)
 129             return 0;
 130
 131         if (!dots || dots == q+5){
 132             message (1,
 133                      _(" Format error on file Extensions File "),
 134                      !dots ? _(" The %%var macro has no default ")
 135                      :       _(" The %%var macro has no variable "));
 136             return 0;
 137         }
 138
 139         /* Copy the variable name */
 140         var_name = g_malloc (dots - p);
 141         strncpy (var_name, p+4, dots-2 - (p+3));
 142         var_name [dots-2 - (p+3)] = 0;
 143
 144         value = getenv (var_name);
 145         g_free (var_name);
 146         if (value){
 147             *v = g_strdup (value);
 148             return q-p;
 149         }
 150         var_name = g_malloc (q - dots + 1);
 151         strncpy (var_name, dots, q - dots + 1);
 152         var_name [q-dots] = 0;
 153         *v = var_name;
 154         return q-p;
 155     }
 156     return 0;
 157 }
 158
 159 /* strip file's extension */
 160 static char *
 161 strip_ext(char *ss)
 162 {
 163     register char *s = ss;
 164     char *e = NULL;
 165     while(*s) {
 166         if(*s == '.') e = s;
 167         if(*s == PATH_SEP && e) e=NULL; /* '.' in *directory* name */
 168         s++;
 169     }
 170     if(e) *e = 0;
 171     return ss;
 172 }
 173
 174 char *
 175 expand_format (struct WEdit *edit_widget, char c, int quote)
 176 {
 177     WPanel *panel;
 178     char *(*quote_func) (const char *, int);
 179     char *fname;
 180
 181     if (c == '%')
 182         return g_strdup ("%");
 183
 184     if (islower ((unsigned) c))
 185         panel = current_panel;
 186     else {
 187         if (get_other_type () != view_listing)
 188             return g_strdup ("");
 189         panel = other_panel;
 190     }
 191     if (!panel)
 192         panel = current_panel;
 193
 194     if (quote)
 195         quote_func = name_quote;
 196     else
 197         quote_func = fake_name_quote;
 198
 199     c = tolower (c);
 200     fname = panel->dir.list[panel->selected].fname;
 201
 202     switch (c) {
 203     case 'f':
 204     case 'p':
 205         return (*quote_func) (fname, 0);
 206     case 'x':
 207         return (*quote_func) (extension (fname), 0);
 208     case 'd':
 209         return (*quote_func) (panel->cwd, 0);
 210     case 'i':                   /* indent equal number cursor position in line */
 211         if (edit_widget)
 212             return g_strnfill (edit_widget->curs_col, ' ');
 213         break;
 214     case 'y':                   /* syntax type */
 215         if (edit_widget && edit_widget->syntax_type)
 216             return g_strdup (edit_widget->syntax_type);
 217         break;
 218     case 'k':                   /* block file name */
 219     case 'b':                   /* block file name / strip extension */  {
 220             if (edit_widget) {
 221                 char *file = g_strconcat (home_dir, BLOCK_FILE, NULL);
 222                 fname = (*quote_func) (file, 0);
 223                 g_free (file);
 224                 return fname;
 225             } else if (c == 'b') {
 226                 return strip_ext ((*quote_func) (fname, 0));
 227             }
 228             break;
 229         }
 230     case 'n':                   /* strip extension in editor */
 231         if (edit_widget)
 232             return strip_ext ((*quote_func) (fname, 0));
 233         break;
 234     case 'm':                   /* menu file name */
 235         if (menu)
 236             return (*quote_func) (menu, 0);
 237         break;
 238     case 's':
 239         if (!panel->marked)
 240             return (*quote_func) (fname, 0);
 241
 242         /* Fall through */
 243
 244     case 't':
 245     case 'u':
 246         {
 247             int length = 2, i;
 248             char *block, *tmp;
 249
 250             for (i = 0; i < panel->count; i++)
 251                 if (panel->dir.list[i].f.marked)
 252                     length += strlen (panel->dir.list[i].fname) + 1;    /* for space */
 253
 254             block = g_malloc (length * 2 + 1);
 255             *block = 0;
 256             for (i = 0; i < panel->count; i++)
 257                 if (panel->dir.list[i].f.marked) {
 258                     strcat (block, tmp =
 259                             (*quote_func) (panel->dir.list[i].fname, 0));
 260                     g_free (tmp);
 261                     strcat (block, " ");
 262                     if (c == 'u')
 263                         do_file_mark (panel, i, 0);
 264                 }
 265             return block;
 266         }                       /* sub case block */
 267     }                           /* switch */
 268     return g_strdup ("%");
 269 }
 270
 271 /*
 272  * Check for the "shell_patterns" directive.  If it's found and valid,
 273  * interpret it and move the pointer past the directive.  Return the
 274  * current pointer.
 275  */
 276 static char *
 277 check_patterns (char *p)
 278 {
 279     static const char def_name[] = "shell_patterns=";
 280     char *p0 = p;
 281
 282     if (strncmp (p, def_name, sizeof (def_name) - 1) != 0)
 283         return p0;
 284
 285     p += sizeof (def_name) - 1;
 286     if (*p == '1')
 287         easy_patterns = 1;
 288     else if (*p == '0')
 289         easy_patterns = 0;
 290     else
 291         return p0;
 292
 293     /* Skip spaces */
 294     p++;
 295     while (*p == '\n' || *p == '\t' || *p == ' ')
 296         p++;
 297     return p;
 298 }
 299
 300 /* Copies a whitespace separated argument from p to arg. Returns the
 301    point after argument. */
 302 static char *extract_arg (char *p, char *arg)
 303 {
 304     while (*p && (*p == ' ' || *p == '\t' || *p == '\n'))
 305         p++;
 306                 /* support quote space .mnu */
 307     while (*p && (*p != ' ' || *(p-1) == '\\') && *p != '\t' && *p != '\n')
 308         *arg++ = *p++;
 309     *arg = 0;
 310     if (!*p || *p == '\n')
 311         p --;
 312     return p;
 313 }
 314
 315 /* Tests whether the selected file in the panel is of any of the types
 316    specified in argument. */
 317 static int test_type (WPanel *panel, char *arg)
 318 {
 319     int result = 0; /* False by default */
 320     int st_mode = panel->dir.list [panel->selected].st.st_mode;
 321
 322     for (;*arg != 0; arg++){
 323         switch (*arg){
 324         case 'n':       /* Not a directory */
 325             result |= !S_ISDIR (st_mode);
 326             break;
 327         case 'r':       /* Regular file */
 328             result |= S_ISREG (st_mode);
 329             break;
 330         case 'd':       /* Directory */
 331             result |= S_ISDIR (st_mode);
 332             break;
 333         case 'l':       /* Link */
 334             result |= S_ISLNK (st_mode);
 335             break;
 336         case 'c':       /* Character special */
 337             result |= S_ISCHR (st_mode);
 338             break;
 339         case 'b':       /* Block special */
 340             result |= S_ISBLK (st_mode);
 341             break;
 342         case 'f':       /* Fifo (named pipe) */
 343             result |= S_ISFIFO (st_mode);
 344             break;
 345         case 's':       /* Socket */
 346             result |= S_ISSOCK (st_mode);
 347             break;
 348         case 'x':       /* Executable */
 349             result |= (st_mode & 0111) ? 1 : 0;
 350             break;
 351         case 't':
 352             result |= panel->marked ? 1 : 0;
 353             break;
 354         default:
 355             debug_error = 1;
 356             break;
 357         }
 358     }
 359     return result;
 360 }
 361
 362 /* Calculates the truth value of the next condition starting from
 363    p. Returns the point after condition. */
 364 static char *test_condition (WEdit *edit_widget, char *p, int *condition)
 365 {
 366     WPanel *panel;
 367     char arg [256];
 368
 369     /* Handle one condition */
 370     for (;*p != '\n' && *p != '&' && *p != '|'; p++){
 371                 /* support quote space .mnu */
 372         if ((*p == ' ' && *(p-1) != '\\') || *p == '\t')
 373             continue;
 374         if (*p >= 'a')
 375             panel = current_panel;
 376         else {
 377             if (get_other_type () == view_listing)
 378                 panel = other_panel;
 379             else
 380                 panel = NULL;
 381         }
 382         *p |= 0x20;
 383
 384         switch (*p++){
 385         case '!':
 386             p = test_condition (edit_widget, p, condition);
 387             *condition = ! *condition;
 388             p--;
 389             break;
 390         case 'f': /* file name pattern */
 391             p = extract_arg (p, arg);
 392             *condition = panel && regexp_match (arg, panel->dir.list [panel->selected].fname, match_file);
 393             break;
 394         case 'y': /* syntax pattern */
 395             if (edit_widget && edit_widget->syntax_type) {
 396                 p = extract_arg (p, arg);
 397                 *condition = panel &&
 398                     regexp_match (arg, edit_widget->syntax_type, match_normal);
 399             }
 400                 break;
 401         case 'd':
 402             p = extract_arg (p, arg);
 403             *condition = panel && regexp_match (arg, panel->cwd, match_file);
 404             break;
 405         case 't':
 406             p = extract_arg (p, arg);
 407             *condition = panel && test_type (panel, arg);
 408             break;
 409         case 'x': /* executable */
 410         {
 411             struct stat status;
 412
 413             p = extract_arg (p, arg);
 414             if (stat (arg, &status) == 0)
 415                 *condition = is_exe (status.st_mode);
 416             else
 417                 *condition = 0;
 418             break;
 419         }
 420         default:
 421             debug_error = 1;
 422             break;
 423         } /* switch */
 424
 425     } /* while */
 426     return p;
 427 }
 428
 429 /* General purpose condition debug output handler */
 430 static void
 431 debug_out (char *start, char *end, int cond)
 432 {
 433     static char msg [256];
 434     int len;
 435
 436     if (start == NULL && end == NULL){
 437         if (cond == 0){
 438             /* Init */
 439             msg [0] = 0;
 440         } else {
 441             /* Show output */
 442             if (!debug_flag)
 443                 return;
 444             len = strlen (msg);
 445             if (len)
 446                 msg [len - 1] = 0;
 447             message (0, _(" Debug "), "%s", msg);
 448             debug_flag = 0;
 449         }
 450     } else {
 451         /* Save debug info for later output */
 452         if (!debug_flag)
 453             return;
 454         /* Save the result of the condition */
 455         if (debug_error){
 456             strcat (msg, _(" ERROR: "));
 457             debug_error = 0;
 458         }
 459         else if (cond)
 460             strcat (msg, _(" True:  "));
 461         else
 462             strcat (msg, _(" False: "));
 463         /* Copy condition statement */
 464         len = strlen (msg);
 465         if (end == NULL){
 466             /* Copy one character */
 467             msg [len] = *start;
 468             msg [len + 1] = 0;
 469         } else {
 470             /* Copy many characters */
 471             while (start < end){
 472                 msg [len++] = *start++;
 473             }
 474             msg [len] = 0;
 475         }
 476         strcat (msg, " \n");
 477     }
 478 }
 479
 480 /* Calculates the truth value of one lineful of conditions. Returns
 481    the point just before the end of line. */
 482 static char *test_line (WEdit *edit_widget, char *p, int *result)
 483 {
 484     int condition;
 485     char operator;
 486     char *debug_start, *debug_end;
 487
 488     /* Init debugger */
 489     debug_out (NULL, NULL, 0);
 490     /* Repeat till end of line */
 491     while (*p && *p != '\n') {
 492         /* support quote space .mnu */
 493         while ((*p == ' ' && *(p-1) != '\\' ) || *p == '\t')
 494             p++;
 495         if (!*p || *p == '\n')
 496             break;
 497         operator = *p++;
 498         if (*p == '?'){
 499             debug_flag = 1;
 500             p++;
 501         }
 502         /* support quote space .mnu */
 503         while ((*p == ' ' && *(p-1) != '\\' ) || *p == '\t')
 504             p++;
 505         if (!*p || *p == '\n')
 506             break;
 507         condition = 1;  /* True by default */
 508
 509         debug_start = p;
 510         p = test_condition (edit_widget, p, &condition);
 511         debug_end = p;
 512         /* Add one debug statement */
 513         debug_out (debug_start, debug_end, condition);
 514
 515         switch (operator){
 516         case '+':
 517         case '=':
 518             /* Assignment */
 519             *result = condition;
 520             break;
 521         case '&':       /* Logical and */
 522             *result &= condition;
 523             break;
 524         case '|':       /* Logical or */
 525             *result |= condition;
 526             break;
 527         default:
 528             debug_error = 1;
 529             break;
 530         } /* switch */
 531         /* Add one debug statement */
 532         debug_out (&operator, NULL, *result);
 533
 534     } /* while (*p != '\n') */
 535     /* Report debug message */
 536     debug_out (NULL, NULL, 1);
 537
 538     if (!*p || *p == '\n')
 539         p --;
 540     return p;
 541 }
 542
 543 /* FIXME: recode this routine on version 3.0, it could be cleaner */
 544 static void
 545 execute_menu_command (WEdit *edit_widget, const char *commands)
 546 {
 547     FILE *cmd_file;
 548     int  cmd_file_fd;
 549     int  expand_prefix_found = 0;
 550     char *parameter = 0;
 551     int  do_quote = 0;
 552     char prompt [80];
 553     int  col;
 554     char *file_name;
 555     int run_view = 0;
 556
 557     /* Skip menu entry title line */
 558     commands = strchr (commands, '\n');
 559     if (!commands){
 560         return;
 561     }
 562
 563     cmd_file_fd = mc_mkstemps (&file_name, "mcusr", SCRIPT_SUFFIX);
 564
 565     if (cmd_file_fd == -1){
 566         message (1, MSG_ERROR, _(" Cannot create temporary command file \n %s "),
 567                  unix_error_string (errno));
 568         return;
 569     }
 570     cmd_file = fdopen (cmd_file_fd, "w");
 571     fputs ("#! /bin/sh\n", cmd_file);
 572     commands++;
 573
 574     for (col = 0; *commands; commands++){
 575         if (col == 0) {
 576             if (*commands != ' ' && *commands != '\t')
 577                 break;
 578             while (*commands == ' ' || *commands == '\t')
 579                 commands++;
 580             if (*commands == 0)
 581                 break;
 582         }
 583         col++;
 584         if (*commands == '\n')
 585             col = 0;
 586         if (parameter){
 587             if (*commands == '}'){
 588                 char *tmp;
 589                 *parameter = 0;
 590                 parameter = input_dialog (_(" Parameter "), prompt, "");
 591                 if (!parameter || !*parameter){
 592                     /* User canceled */
 593                     fclose (cmd_file);
 594                     unlink (file_name);
 595                     g_free (file_name);
 596                     return;
 597                 }
 598                 if (do_quote) {
 599                     fputs (tmp = name_quote (parameter, 0), cmd_file);
 600                     g_free (tmp);
 601                 } else
 602                     fputs (parameter, cmd_file);
 603                 g_free (parameter);
 604                 parameter = 0;
 605             } else {
 606                 if (parameter < &prompt [sizeof (prompt) - 1]) {
 607                     *parameter++ = *commands;
 608                 }
 609             }
 610         } else if (expand_prefix_found){
 611             expand_prefix_found = 0;
 612             if (isdigit ((unsigned)*commands)) {
 613                 do_quote = atoi (commands);
 614                 while (isdigit ((unsigned)*commands))
 615                     commands++;
 616             }
 617             if (*commands == '{')
 618                 parameter = prompt;
 619             else{
 620                 char *text = expand_format (edit_widget, *commands, do_quote);
 621                 fputs (text, cmd_file);
 622                 g_free (text);
 623             }
 624         } else {
 625             if (*commands == '%') {
 626                 int i = check_format_view (commands + 1);
 627                 if (i) {
 628                     commands += i;
 629                     run_view = 1;
 630                 } else {
 631                     do_quote = 1; /* Default: Quote expanded macro */
 632                     expand_prefix_found = 1;
 633                 }
 634             } else
 635                 fputc (*commands, cmd_file);
 636         }
 637     }
 638     fclose (cmd_file);
 639     chmod (file_name, S_IRWXU);
 640     if (run_view) {
 641         run_view = 0;
 642         view (file_name, 0, &run_view, 0);
 643     } else {
 644         shell_execute (file_name, 0);
 645     }
 646     unlink (file_name);
 647     g_free (file_name);
 648 }
 649
 650 /*
 651 **      Check owner of the menu file. Using menu file is allowed, if
 652 **      owner of the menu is root or the actual user. In either case
 653 **      file should not be group and word-writable.
 654 **
 655 **      Q. Should we apply this routine to system and home menu (and .ext files)?
 656 */
 657 static int
 658 menu_file_own(char* path)
 659 {
 660     struct stat st;
 661
 662     if (stat (path, &st) == 0
 663         && (!st.st_uid || (st.st_uid == geteuid ()))
 664         && ((st.st_mode & (S_IWGRP | S_IWOTH)) == 0)
 665     ) {
 666         return 1;
 667     }
 668     if (verbose)
 669     {
 670         message (0, _(" Warning -- ignoring file "),
 671                     _("File %s is not owned by root or you or is world writable.\n"
 672                     "Using it may compromise your security"),
 673                 path
 674         );
 675     }
 676     return 0;
 677 }
 678
 679 /*
 680  * If edit_widget is NULL then we are called from the mc menu,
 681  * otherwise we are called from the mcedit menu.
 682  */
 683 void
 684 user_menu_cmd (struct WEdit *edit_widget)
 685 {
 686     char *p;
 687     char *data, **entries;
 688     int  max_cols, menu_lines, menu_limit;
 689     int  col, i, accept_entry = 1;
 690     int  selected, old_patterns;
 691     Listbox *listbox;
 692
 693     if (!vfs_current_is_local ()){
 694         message (1, MSG_ERROR,
 695                  _(" Cannot execute commands on non-local filesystems"));
 696         return;
 697     }
 698
 699     menu = g_strdup (edit_widget ? CEDIT_LOCAL_MENU : MC_LOCAL_MENU);
 700     if (!exist_file (menu) || !menu_file_own (menu)){
 701         g_free (menu);
 702         menu = concat_dir_and_file \
 703                             (home_dir, edit_widget ? CEDIT_HOME_MENU : MC_HOME_MENU);
 704         if (!exist_file (menu)){
 705             g_free (menu);
 706             menu = concat_dir_and_file \
 707                         (mc_home, edit_widget ? CEDIT_GLOBAL_MENU : MC_GLOBAL_MENU);
 708         }
 709     }
 710
 711     if ((data = load_file (menu)) == NULL){
 712         message (1, MSG_ERROR, _(" Cannot open file %s \n %s "),
 713                  menu, unix_error_string (errno));
 714         g_free (menu);
 715         menu = NULL;
 716         return;
 717     }
 718
 719     max_cols = 0;
 720     selected = 0;
 721     menu_limit = 0;
 722     entries = 0;
 723
 724     /* Parse the menu file */
 725     old_patterns = easy_patterns;
 726     p = check_patterns (data);
 727     for (menu_lines = col = 0; *p; p++){
 728         if (menu_lines >= menu_limit){
 729             char ** new_entries;
 730
 731             menu_limit += MAX_ENTRIES;
 732             new_entries = g_realloc (entries, sizeof (new_entries[0]) * menu_limit);
 733
 734             if (new_entries == 0)
 735                 break;
 736
 737             entries = new_entries;
 738             new_entries += menu_limit;
 739             while (--new_entries >= &entries[menu_lines])
 740                 *new_entries = 0;
 741         }
 742         if (col == 0 && !entries [menu_lines]){
 743             if (*p == '#'){
 744                 /* A commented menu entry */
 745                 accept_entry = 1;
 746             } else if (*p == '+'){
 747                 if (*(p+1) == '='){
 748                     /* Combined adding and default */
 749                     p = test_line (edit_widget, p, &accept_entry);
 750                     if (selected == 0 && accept_entry)
 751                         selected = menu_lines;
 752                 } else {
 753                     /* A condition for adding the entry */
 754                     p = test_line (edit_widget, p, &accept_entry);
 755                 }
 756             } else if (*p == '='){
 757                 if (*(p+1) == '+'){
 758                     /* Combined adding and default */
 759                     p = test_line (edit_widget, p, &accept_entry);
 760                     if (selected == 0 && accept_entry)
 761                         selected = menu_lines;
 762                 } else {
 763                     /* A condition for making the entry default */
 764                     i = 1;
 765                     p = test_line (edit_widget, p, &i);
 766                     if (selected == 0 && i)
 767                         selected = menu_lines;
 768                 }
 769             }
 770             else if (*p != ' ' && *p != '\t' && is_printable (*p)) {
 771                 /* A menu entry title line */
 772                 if (accept_entry)
 773                     entries [menu_lines] = p;
 774                 else
 775                     accept_entry = 1;
 776             }
 777         }
 778         if (*p == '\n'){
 779             if (entries [menu_lines]){
 780                 menu_lines++;
 781                 accept_entry = 1;
 782             }
 783             max_cols = max (max_cols, col);
 784             col = 0;
 785         } else {
 786             if (*p == '\t')
 787                 *p = ' ';
 788             col++;
 789         }
 790     }
 791
 792     if (menu_lines == 0) {
 793         message (1, MSG_ERROR, _(" No suitable entries found in %s "), menu);
 794     } else {
 795
 796     max_cols = min (max (max_cols, col), MAX_ENTRY_LEN);
 797
 798     /* Create listbox */
 799     listbox = create_listbox_window (max_cols+2, menu_lines, _(" User menu "),
 800                                      "[Menu File Edit]");
 801     /* insert all the items found */
 802     for (i = 0; i < menu_lines; i++) {
 803         p = entries [i];
 804         LISTBOX_APPEND_TEXT (listbox, (unsigned char) p[0],
 805                              extract_line (p, p + MAX_ENTRY_LEN), p
 806                             );
 807     }
 808     /* Select the default entry */
 809     listbox_select_by_number (listbox->list, selected);
 810
 811     selected = run_listbox (listbox);
 812     if (selected >= 0)
 813         execute_menu_command (edit_widget, entries [selected]);
 814
 815     do_refresh ();
 816     }
 817
 818     easy_patterns = old_patterns;
 819     g_free (menu);
 820     menu = NULL;
 821     if (entries)
 822         g_free (entries);
 823     g_free (data);
 824 }
 825