src/filemanager/usermenu.c

   1 /* User Menu implementation
   2    Copyright (C) 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
   3    2006, 2007 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software
  17    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 /** \file usermenu.c
  20  *  \brief Source: user menu implementation
  21  */
  22
  23 #include <config.h>
  24
  25 #include <ctype.h>
  26 #include <errno.h>
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30
  31 #include "lib/global.h"
  32 #include "lib/tty/tty.h"
  33 #include "lib/skin.h"
  34 #include "lib/search.h"
  35 #include "lib/vfs/mc-vfs/vfs.h"
  36 #include "lib/strutil.h"
  37 #include "lib/util.h"
  38 #include "lib/widget.h"
  39
  40 #include "src/editor/edit.h"    /* WEdit, BLOCK_FILE */
  41 #include "src/viewer/mcviewer.h"        /* for default_* externs */
  42
  43 #include "src/execute.h"
  44 #include "src/setup.h"
  45 #include "src/history.h"
  46
  47 #include "dir.h"
  48 #include "midnight.h"
  49 #include "layout.h"
  50
  51 #include "usermenu.h"
  52
  53 /*** global variables ****************************************************************************/
  54
  55 /*** file scope macro definitions ****************************************************************/
  56
  57 #define MAX_ENTRIES 16
  58 #define MAX_ENTRY_LEN 60
  59
  60 /*** file scope type declarations ****************************************************************/
  61
  62 /*** file scope variables ************************************************************************/
  63
  64 static int debug_flag = 0;
  65 static int debug_error = 0;
  66 static char *menu = NULL;
  67
  68 /*** file scope functions ************************************************************************/
  69 /* --------------------------------------------------------------------------------------------- */
  70
  71 /** strip file's extension */
  72 static char *
  73 strip_ext (char *ss)
  74 {
  75     register char *s = ss;
  76     char *e = NULL;
  77     while (*s)
  78     {
  79         if (*s == '.')
  80             e = s;
  81         if (*s == PATH_SEP && e)
  82             e = NULL;           /* '.' in *directory* name */
  83         s++;
  84     }
  85     if (e)
  86         *e = 0;
  87     return ss;
  88 }
  89
  90 /* --------------------------------------------------------------------------------------------- */
  91 /**
  92  * Check for the "shell_patterns" directive.  If it's found and valid,
  93  * interpret it and move the pointer past the directive.  Return the
  94  * current pointer.
  95  */
  96
  97 static char *
  98 check_patterns (char *p)
  99 {
 100     static const char def_name[] = "shell_patterns=";
 101     char *p0 = p;
 102
 103     if (strncmp (p, def_name, sizeof (def_name) - 1) != 0)
 104         return p0;
 105
 106     p += sizeof (def_name) - 1;
 107     if (*p == '1')
 108         easy_patterns = 1;
 109     else if (*p == '0')
 110         easy_patterns = 0;
 111     else
 112         return p0;
 113
 114     /* Skip spaces */
 115     p++;
 116     while (*p == '\n' || *p == '\t' || *p == ' ')
 117         p++;
 118     return p;
 119 }
 120
 121 /* --------------------------------------------------------------------------------------------- */
 122 /** Copies a whitespace separated argument from p to arg. Returns the
 123    point after argument. */
 124
 125 static char *
 126 extract_arg (char *p, char *arg, int size)
 127 {
 128     char *np;
 129
 130     while (*p && (*p == ' ' || *p == '\t' || *p == '\n'))
 131         p++;
 132     /* support quote space .mnu */
 133     while (*p && (*p != ' ' || *(p - 1) == '\\') && *p != '\t' && *p != '\n')
 134     {
 135         np = str_get_next_char (p);
 136         if (np - p >= size)
 137             break;
 138         memcpy (arg, p, np - p);
 139         arg += np - p;
 140         size -= np - p;
 141         p = np;
 142     }
 143     *arg = 0;
 144     if (!*p || *p == '\n')
 145         str_prev_char (&p);
 146     return p;
 147 }
 148
 149 /* --------------------------------------------------------------------------------------------- */
 150 /* Tests whether the selected file in the panel is of any of the types
 151    specified in argument. */
 152
 153 static int
 154 test_type (WPanel * panel, char *arg)
 155 {
 156     int result = 0;             /* False by default */
 157     int st_mode = panel->dir.list[panel->selected].st.st_mode;
 158
 159     for (; *arg != 0; arg++)
 160     {
 161         switch (*arg)
 162         {
 163         case 'n':              /* Not a directory */
 164             result |= !S_ISDIR (st_mode);
 165             break;
 166         case 'r':              /* Regular file */
 167             result |= S_ISREG (st_mode);
 168             break;
 169         case 'd':              /* Directory */
 170             result |= S_ISDIR (st_mode);
 171             break;
 172         case 'l':              /* Link */
 173             result |= S_ISLNK (st_mode);
 174             break;
 175         case 'c':              /* Character special */
 176             result |= S_ISCHR (st_mode);
 177             break;
 178         case 'b':              /* Block special */
 179             result |= S_ISBLK (st_mode);
 180             break;
 181         case 'f':              /* Fifo (named pipe) */
 182             result |= S_ISFIFO (st_mode);
 183             break;
 184         case 's':              /* Socket */
 185             result |= S_ISSOCK (st_mode);
 186             break;
 187         case 'x':              /* Executable */
 188             result |= (st_mode & 0111) ? 1 : 0;
 189             break;
 190         case 't':
 191             result |= panel->marked ? 1 : 0;
 192             break;
 193         default:
 194             debug_error = 1;
 195             break;
 196         }
 197     }
 198     return result;
 199 }
 200
 201 /* --------------------------------------------------------------------------------------------- */
 202 /** Calculates the truth value of the next condition starting from
 203    p. Returns the point after condition. */
 204
 205 static char *
 206 test_condition (WEdit * edit_widget, char *p, int *condition)
 207 {
 208     char arg[256];
 209     const mc_search_type_t search_type = easy_patterns ? MC_SEARCH_T_GLOB : MC_SEARCH_T_REGEX;
 210
 211     /* Handle one condition */
 212     for (; *p != '\n' && *p != '&' && *p != '|'; p++)
 213     {
 214         WPanel *panel = NULL;
 215
 216         /* support quote space .mnu */
 217         if ((*p == ' ' && *(p - 1) != '\\') || *p == '\t')
 218             continue;
 219         if (*p >= 'a')
 220             panel = current_panel;
 221         else if (get_other_type () == view_listing)
 222             panel = other_panel;
 223
 224         *p |= 0x20;
 225
 226         switch (*p++)
 227         {
 228         case '!':
 229             p = test_condition (edit_widget, p, condition);
 230             *condition = !*condition;
 231             str_prev_char (&p);
 232             break;
 233         case 'f':              /* file name pattern */
 234             p = extract_arg (p, arg, sizeof (arg));
 235 #ifdef USE_INTERNAL_EDIT
 236             if (edit_widget != NULL)
 237                 *condition = mc_search (arg, edit_get_file_name (edit_widget), search_type) ? 1 : 0;
 238             else
 239 #endif
 240                 *condition = panel != NULL &&
 241                     mc_search (arg, panel->dir.list[panel->selected].fname, search_type) ? 1 : 0;
 242             break;
 243         case 'y':              /* syntax pattern */
 244 #ifdef USE_INTERNAL_EDIT
 245             if (edit_widget != NULL)
 246             {
 247                 const char *syntax_type = edit_get_syntax_type (edit_widget);
 248                 if (syntax_type != NULL)
 249                 {
 250                     p = extract_arg (p, arg, sizeof (arg));
 251                     *condition = mc_search (arg, syntax_type, MC_SEARCH_T_NORMAL) ? 1 : 0;
 252                 }
 253             }
 254 #endif
 255             break;
 256         case 'd':
 257             p = extract_arg (p, arg, sizeof (arg));
 258             *condition = panel != NULL && mc_search (arg, panel->cwd, search_type) ? 1 : 0;
 259             break;
 260         case 't':
 261             p = extract_arg (p, arg, sizeof (arg));
 262             *condition = panel != NULL && test_type (panel, arg) ? 1 : 0;
 263             break;
 264         case 'x':              /* executable */
 265             {
 266                 struct stat status;
 267
 268                 p = extract_arg (p, arg, sizeof (arg));
 269                 if (stat (arg, &status) == 0)
 270                     *condition = is_exe (status.st_mode) ? 1 : 0;
 271                 else
 272                     *condition = 0;
 273                 break;
 274             }
 275         default:
 276             debug_error = 1;
 277             break;
 278         }                       /* switch */
 279
 280     }                           /* while */
 281     return p;
 282 }
 283
 284 /* --------------------------------------------------------------------------------------------- */
 285 /** General purpose condition debug output handler */
 286
 287 static void
 288 debug_out (char *start, char *end, int cond)
 289 {
 290     static char *msg;
 291     int len;
 292
 293     if (start == NULL && end == NULL)
 294     {
 295         /* Show output */
 296         if (debug_flag && msg)
 297         {
 298             len = strlen (msg);
 299             if (len)
 300                 msg[len - 1] = 0;
 301             message (D_NORMAL, _("Debug"), "%s", msg);
 302
 303         }
 304         debug_flag = 0;
 305         g_free (msg);
 306         msg = NULL;
 307     }
 308     else
 309     {
 310         const char *type;
 311         char *p;
 312
 313         /* Save debug info for later output */
 314         if (!debug_flag)
 315             return;
 316         /* Save the result of the condition */
 317         if (debug_error)
 318         {
 319             type = _("ERROR:");
 320             debug_error = 0;
 321         }
 322         else if (cond)
 323             type = _("True:");
 324         else
 325             type = _("False:");
 326         /* This is for debugging, don't need to be super efficient.  */
 327         if (end == NULL)
 328             p = g_strdup_printf ("%s %s %c \n", msg ? msg : "", type, *start);
 329         else
 330             p = g_strdup_printf ("%s %s %.*s \n", msg ? msg : "", type, (int) (end - start), start);
 331         g_free (msg);
 332         msg = p;
 333     }
 334 }
 335
 336 /* --------------------------------------------------------------------------------------------- */
 337 /** Calculates the truth value of one lineful of conditions. Returns
 338    the point just before the end of line. */
 339
 340 static char *
 341 test_line (WEdit * edit_widget, char *p, int *result)
 342 {
 343     int condition;
 344     char operator;
 345     char *debug_start, *debug_end;
 346
 347     /* Repeat till end of line */
 348     while (*p && *p != '\n')
 349     {
 350         /* support quote space .mnu */
 351         while ((*p == ' ' && *(p - 1) != '\\') || *p == '\t')
 352             p++;
 353         if (!*p || *p == '\n')
 354             break;
 355         operator = *p++;
 356         if (*p == '?')
 357         {
 358             debug_flag = 1;
 359             p++;
 360         }
 361         /* support quote space .mnu */
 362         while ((*p == ' ' && *(p - 1) != '\\') || *p == '\t')
 363             p++;
 364         if (!*p || *p == '\n')
 365             break;
 366         condition = 1;          /* True by default */
 367
 368         debug_start = p;
 369         p = test_condition (edit_widget, p, &condition);
 370         debug_end = p;
 371         /* Add one debug statement */
 372         debug_out (debug_start, debug_end, condition);
 373
 374         switch (operator)
 375         {
 376         case '+':
 377         case '=':
 378             /* Assignment */
 379             *result = condition;
 380             break;
 381         case '&':              /* Logical and */
 382             *result &= condition;
 383             break;
 384         case '|':              /* Logical or */
 385             *result |= condition;
 386             break;
 387         default:
 388             debug_error = 1;
 389             break;
 390         }                       /* switch */
 391         /* Add one debug statement */
 392         debug_out (&operator, NULL, *result);
 393
 394     }                           /* while (*p != '\n') */
 395     /* Report debug message */
 396     debug_out (NULL, NULL, 1);
 397
 398     if (!*p || *p == '\n')
 399         str_prev_char (&p);
 400     return p;
 401 }
 402
 403 /* --------------------------------------------------------------------------------------------- */
 404 /** FIXME: recode this routine on version 3.0, it could be cleaner */
 405
 406 static void
 407 execute_menu_command (WEdit * edit_widget, const char *commands, gboolean show_prompt)
 408 {
 409     FILE *cmd_file;
 410     int cmd_file_fd;
 411     int expand_prefix_found = 0;
 412     char *parameter = 0;
 413     gboolean do_quote = FALSE;
 414     char lc_prompt[80];
 415     int col;
 416     char *file_name;
 417     int run_view = 0;
 418
 419     /* Skip menu entry title line */
 420     commands = strchr (commands, '\n');
 421     if (!commands)
 422     {
 423         return;
 424     }
 425
 426     cmd_file_fd = mc_mkstemps (&file_name, "mcusr", SCRIPT_SUFFIX);
 427
 428     if (cmd_file_fd == -1)
 429     {
 430         message (D_ERROR, MSG_ERROR, _("Cannot create temporary command file\n%s"),
 431                  unix_error_string (errno));
 432         return;
 433     }
 434     cmd_file = fdopen (cmd_file_fd, "w");
 435     fputs ("#! /bin/sh\n", cmd_file);
 436     commands++;
 437
 438     for (col = 0; *commands; commands++)
 439     {
 440         if (col == 0)
 441         {
 442             if (*commands != ' ' && *commands != '\t')
 443                 break;
 444             while (*commands == ' ' || *commands == '\t')
 445                 commands++;
 446             if (*commands == 0)
 447                 break;
 448         }
 449         col++;
 450         if (*commands == '\n')
 451             col = 0;
 452         if (parameter)
 453         {
 454             if (*commands == '}')
 455             {
 456                 char *tmp;
 457                 *parameter = 0;
 458                 parameter =
 459                     input_dialog (_("Parameter"), lc_prompt, MC_HISTORY_FM_MENU_EXEC_PARAM, "");
 460                 if (!parameter || !*parameter)
 461                 {
 462                     /* User canceled */
 463                     fclose (cmd_file);
 464                     unlink (file_name);
 465                     g_free (file_name);
 466                     return;
 467                 }
 468                 if (do_quote)
 469                 {
 470                     tmp = name_quote (parameter, 0);
 471                     fputs (tmp, cmd_file);
 472                     g_free (tmp);
 473                 }
 474                 else
 475                     fputs (parameter, cmd_file);
 476                 g_free (parameter);
 477                 parameter = 0;
 478             }
 479             else
 480             {
 481                 if (parameter < &lc_prompt[sizeof (lc_prompt) - 1])
 482                 {
 483                     *parameter++ = *commands;
 484                 }
 485             }
 486         }
 487         else if (expand_prefix_found)
 488         {
 489             expand_prefix_found = 0;
 490             if (g_ascii_isdigit ((gchar) * commands))
 491             {
 492                 do_quote = (atoi (commands) != 0);
 493                 while (g_ascii_isdigit ((gchar) * commands))
 494                     commands++;
 495             }
 496             if (*commands == '{')
 497                 parameter = lc_prompt;
 498             else
 499             {
 500                 char *text = expand_format (edit_widget, *commands, do_quote);
 501                 fputs (text, cmd_file);
 502                 g_free (text);
 503             }
 504         }
 505         else
 506         {
 507             if (*commands == '%')
 508             {
 509                 int i = check_format_view (commands + 1);
 510                 if (i)
 511                 {
 512                     commands += i;
 513                     run_view = 1;
 514                 }
 515                 else
 516                 {
 517                     do_quote = TRUE;    /* Default: Quote expanded macro */
 518                     expand_prefix_found = 1;
 519                 }
 520             }
 521             else
 522                 fputc (*commands, cmd_file);
 523         }
 524     }
 525     fclose (cmd_file);
 526     chmod (file_name, S_IRWXU);
 527     if (run_view)
 528     {
 529         mcview_viewer (file_name, NULL, 0);
 530         dialog_switch_process_pending ();
 531     }
 532     else
 533     {
 534         /* execute the command indirectly to allow execution even
 535          * on no-exec filesystems. */
 536         char *cmd = g_strconcat ("/bin/sh ", file_name, (char *) NULL);
 537         if (!show_prompt)
 538         {
 539             if (system (cmd) == -1)
 540                 message (D_ERROR, MSG_ERROR, "%s", _("Error calling program"));
 541         }
 542         else
 543         {
 544             shell_execute (cmd, EXECUTE_HIDE);
 545         }
 546         g_free (cmd);
 547     }
 548     unlink (file_name);
 549     g_free (file_name);
 550 }
 551
 552 /* --------------------------------------------------------------------------------------------- */
 553 /**
 554  **     Check owner of the menu file. Using menu file is allowed, if
 555  **     owner of the menu is root or the actual user. In either case
 556  **     file should not be group and word-writable.
 557  **
 558  **     Q. Should we apply this routine to system and home menu (and .ext files)?
 559  */
 560
 561 static int
 562 menu_file_own (char *path)
 563 {
 564     struct stat st;
 565
 566     if (stat (path, &st) == 0
 567         && (!st.st_uid || (st.st_uid == geteuid ())) && ((st.st_mode & (S_IWGRP | S_IWOTH)) == 0))
 568     {
 569         return 1;
 570     }
 571     if (verbose)
 572     {
 573         message (D_NORMAL, _("Warning -- ignoring file"),
 574                  _("File %s is not owned by root or you or is world writable.\n"
 575                    "Using it may compromise your security"), path);
 576     }
 577     return 0;
 578 }
 579
 580 /* --------------------------------------------------------------------------------------------- */
 581 /*** public functions ****************************************************************************/
 582 /* --------------------------------------------------------------------------------------------- */
 583
 584 /* Formats defined:
 585    %%  The % character
 586    %f  The current file (if non-local vfs, file will be copied locally and
 587    %f will be full path to it).
 588    %p  The current file
 589    %d  The current working directory
 590    %s  "Selected files"; the tagged files if any, otherwise the current file
 591    %t  Tagged files
 592    %u  Tagged files (and they are untagged on return from expand_format)
 593    %view Runs the commands and pipes standard output to the view command.
 594    If %view is immediately followed by '{', recognize keywords
 595    ascii, hex, nroff and unform
 596
 597    If the format letter is in uppercase, it refers to the other panel.
 598
 599    With a number followed the % character you can turn quoting on (default)
 600    and off. For example:
 601    %f    quote expanded macro
 602    %1f   ditto
 603    %0f   don't quote expanded macro
 604
 605    expand_format returns a memory block that must be free()d.
 606  */
 607
 608 /* Returns how many characters we should advance if %view was found */
 609 int
 610 check_format_view (const char *p)
 611 {
 612     const char *q = p;
 613     if (!strncmp (p, "view", 4))
 614     {
 615         q += 4;
 616         if (*q == '{')
 617         {
 618             for (q++; *q && *q != '}'; q++)
 619             {
 620                 if (!strncmp (q, "ascii", 5))
 621                 {
 622                     mcview_default_hex_mode = 0;
 623                     q += 4;
 624                 }
 625                 else if (!strncmp (q, "hex", 3))
 626                 {
 627                     mcview_default_hex_mode = 1;
 628                     q += 2;
 629                 }
 630                 else if (!strncmp (q, "nroff", 5))
 631                 {
 632                     mcview_default_nroff_flag = 1;
 633                     q += 4;
 634                 }
 635                 else if (!strncmp (q, "unform", 6))
 636                 {
 637                     mcview_default_nroff_flag = 0;
 638                     q += 5;
 639                 }
 640             }
 641             if (*q == '}')
 642                 q++;
 643         }
 644         return q - p;
 645     }
 646     return 0;
 647 }
 648
 649 /* --------------------------------------------------------------------------------------------- */
 650
 651 int
 652 check_format_cd (const char *p)
 653 {
 654     return (strncmp (p, "cd", 2)) ? 0 : 3;
 655 }
 656
 657 /* --------------------------------------------------------------------------------------------- */
 658 /* Check if p has a "^var\{var-name\}" */
 659 /* Returns the number of skipped characters (zero on not found) */
 660 /* V will be set to the expanded variable name */
 661
 662 int
 663 check_format_var (const char *p, char **v)
 664 {
 665     const char *q = p;
 666     char *var_name;
 667     const char *value;
 668     const char *dots = 0;
 669
 670     *v = 0;
 671     if (!strncmp (p, "var{", 4))
 672     {
 673         for (q += 4; *q && *q != '}'; q++)
 674         {
 675             if (*q == ':')
 676                 dots = q + 1;
 677         }
 678         if (!*q)
 679             return 0;
 680
 681         if (!dots || dots == q + 5)
 682         {
 683             message (D_ERROR,
 684                      _("Format error on file Extensions File"),
 685                      !dots ? _("The %%var macro has no default")
 686                      : _("The %%var macro has no variable"));
 687             return 0;
 688         }
 689
 690         /* Copy the variable name */
 691         var_name = g_strndup (p + 4, dots - 2 - (p + 3));
 692
 693         value = getenv (var_name);
 694         g_free (var_name);
 695         if (value)
 696         {
 697             *v = g_strdup (value);
 698             return q - p;
 699         }
 700         var_name = g_strndup (dots, q - dots);
 701         *v = var_name;
 702         return q - p;
 703     }
 704     return 0;
 705 }
 706
 707 /* --------------------------------------------------------------------------------------------- */
 708
 709 char *
 710 expand_format (struct WEdit *edit_widget, char c, gboolean do_quote)
 711 {
 712     WPanel *panel = NULL;
 713     char *(*quote_func) (const char *, int);
 714     char *fname = NULL;
 715     char *result;
 716     char c_lc;
 717
 718 #ifndef USE_INTERNAL_EDIT
 719     (void) edit_widget;
 720 #endif
 721
 722     if (c == '%')
 723         return g_strdup ("%");
 724
 725     if (mc_run_mode == MC_RUN_FULL)
 726     {
 727         if (g_ascii_islower ((gchar) c))
 728             panel = current_panel;
 729         else
 730         {
 731             if (get_other_type () != view_listing)
 732                 return g_strdup ("");
 733             panel = other_panel;
 734         }
 735         fname = panel->dir.list[panel->selected].fname;
 736     }
 737 #ifdef USE_INTERNAL_EDIT
 738     else if (mc_run_mode == MC_RUN_EDITOR)
 739         fname = (char *) edit_get_file_name (edit_widget);
 740 #endif
 741
 742     if (do_quote)
 743         quote_func = name_quote;
 744     else
 745         quote_func = fake_name_quote;
 746
 747     c_lc = g_ascii_tolower ((gchar) c);
 748
 749     switch (c_lc)
 750     {
 751     case 'f':
 752     case 'p':
 753         return (*quote_func) (fname, 0);
 754     case 'x':
 755         return (*quote_func) (extension (fname), 0);
 756     case 'd':
 757         {
 758             char *cwd;
 759             char *qstr;
 760
 761             cwd = g_malloc (MC_MAXPATHLEN + 1);
 762
 763             if (panel)
 764                 g_strlcpy (cwd, panel->cwd, MC_MAXPATHLEN + 1);
 765             else
 766                 mc_get_current_wd (cwd, MC_MAXPATHLEN + 1);
 767
 768             qstr = (*quote_func) (cwd, 0);
 769
 770             g_free (cwd);
 771
 772             return qstr;
 773         }
 774     case 'i':                  /* indent equal number cursor position in line */
 775 #ifdef USE_INTERNAL_EDIT
 776         if (edit_widget)
 777             return g_strnfill (edit_get_curs_col (edit_widget), ' ');
 778 #endif
 779         break;
 780     case 'y':                  /* syntax type */
 781 #ifdef USE_INTERNAL_EDIT
 782         if (edit_widget)
 783         {
 784             const char *syntax_type = edit_get_syntax_type (edit_widget);
 785             if (syntax_type != NULL)
 786                 return g_strdup (syntax_type);
 787         }
 788 #endif
 789         break;
 790     case 'k':                  /* block file name */
 791     case 'b':                  /* block file name / strip extension */
 792         {
 793 #ifdef USE_INTERNAL_EDIT
 794             if (edit_widget)
 795             {
 796                 char *file = concat_dir_and_file (mc_config_get_cache_path (), EDIT_BLOCK_FILE);
 797                 fname = (*quote_func) (file, 0);
 798                 g_free (file);
 799                 return fname;
 800             }
 801 #endif
 802             if (c_lc == 'b')
 803                 return strip_ext ((*quote_func) (fname, 0));
 804             break;
 805         }
 806     case 'n':                  /* strip extension in editor */
 807 #ifdef USE_INTERNAL_EDIT
 808         if (edit_widget)
 809             return strip_ext ((*quote_func) (fname, 0));
 810 #endif
 811         break;
 812     case 'm':                  /* menu file name */
 813         if (menu)
 814             return (*quote_func) (menu, 0);
 815         break;
 816     case 's':
 817         if (!panel || !panel->marked)
 818             return (*quote_func) (fname, 0);
 819
 820         /* Fall through */
 821
 822     case 't':
 823     case 'u':
 824         {
 825             int length = 2, i;
 826             char *block, *tmp;
 827
 828             if (!panel)
 829                 return g_strdup ("");
 830
 831             for (i = 0; i < panel->count; i++)
 832                 if (panel->dir.list[i].f.marked)
 833                     length += strlen (panel->dir.list[i].fname) + 1;    /* for space */
 834
 835             block = g_malloc (length * 2 + 1);
 836             *block = 0;
 837             for (i = 0; i < panel->count; i++)
 838                 if (panel->dir.list[i].f.marked)
 839                 {
 840                     tmp = (*quote_func) (panel->dir.list[i].fname, 0);
 841                     strcat (block, tmp);
 842                     g_free (tmp);
 843                     strcat (block, " ");
 844                     if (c_lc == 'u')
 845                         do_file_mark (panel, i, 0);
 846                 }
 847             return block;
 848         }                       /* sub case block */
 849     }                           /* switch */
 850     result = g_strdup ("% ");
 851     result[1] = c;
 852     return result;
 853 }
 854
 855 /* --------------------------------------------------------------------------------------------- */
 856 /**
 857  * If edit_widget is NULL then we are called from the mc menu,
 858  * otherwise we are called from the mcedit menu.
 859  */
 860
 861 gboolean
 862 user_menu_cmd (struct WEdit *edit_widget, const char *menu_file, int selected_entry)
 863 {
 864     char *p;
 865     char *data, **entries;
 866     int max_cols, menu_lines, menu_limit;
 867     int col, i, accept_entry = 1;
 868     int selected, old_patterns;
 869     Listbox *listbox;
 870     gboolean res = FALSE;
 871     gboolean interactive = FALSE;
 872
 873     if (!vfs_current_is_local ())
 874     {
 875         message (D_ERROR, MSG_ERROR, "%s", _("Cannot execute commands on non-local filesystems"));
 876         return FALSE;
 877     }
 878     if (menu_file != NULL)
 879         menu = g_strdup (menu_file);
 880     else
 881         menu = g_strdup (edit_widget ? EDIT_LOCAL_MENU : MC_LOCAL_MENU);
 882     if (!exist_file (menu) || !menu_file_own (menu))
 883     {
 884         if (menu_file != NULL)
 885         {
 886             message (D_ERROR, MSG_ERROR, _("Cannot open file%s\n%s"), menu, unix_error_string (errno));
 887             g_free (menu);
 888             menu = NULL;
 889             return FALSE;
 890         }
 891
 892         g_free (menu);
 893         if (edit_widget)
 894             menu = concat_dir_and_file (mc_config_get_data_path (), EDIT_HOME_MENU);
 895         else
 896             menu = g_build_filename (mc_config_get_data_path (), MC_USERMENU_FILE, NULL);
 897
 898
 899         if (!exist_file (menu))
 900         {
 901             g_free (menu);
 902             menu =
 903                 concat_dir_and_file (mc_config_get_home_dir (),
 904                                      edit_widget ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU);
 905             if (!exist_file (menu))
 906             {
 907                 g_free (menu);
 908                 menu =
 909                     concat_dir_and_file (mc_sysconfig_dir,
 910                                          edit_widget ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU);
 911                 if (!exist_file (menu))
 912                 {
 913                     g_free (menu);
 914                     menu = concat_dir_and_file
 915                         (mc_share_data_dir, edit_widget ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU);
 916                 }
 917             }
 918         }
 919     }
 920
 921     if (!g_file_get_contents (menu, &data, NULL, NULL))
 922     {
 923         message (D_ERROR, MSG_ERROR, _("Cannot open file%s\n%s"), menu, unix_error_string (errno));
 924         g_free (menu);
 925         menu = NULL;
 926         return FALSE;
 927     }
 928
 929     max_cols = 0;
 930     selected = 0;
 931     menu_limit = 0;
 932     entries = 0;
 933
 934     /* Parse the menu file */
 935     old_patterns = easy_patterns;
 936     p = check_patterns (data);
 937     for (menu_lines = col = 0; *p; str_next_char (&p))
 938     {
 939         if (menu_lines >= menu_limit)
 940         {
 941             char **new_entries;
 942
 943             menu_limit += MAX_ENTRIES;
 944             new_entries = g_try_realloc (entries, sizeof (new_entries[0]) * menu_limit);
 945
 946             if (new_entries == NULL)
 947                 break;
 948
 949             entries = new_entries;
 950             new_entries += menu_limit;
 951             while (--new_entries >= &entries[menu_lines])
 952                 *new_entries = NULL;
 953         }
 954         if (col == 0 && !entries[menu_lines])
 955         {
 956             if (*p == '#')
 957             {
 958                 /* show prompt if first line of external script is #interactive */
 959                 if (selected_entry >= 0 && strncmp (p, "#interactive", 12) == 0)
 960                     interactive = TRUE;
 961                 /* A commented menu entry */
 962                 accept_entry = 1;
 963             }
 964             else if (*p == '+')
 965             {
 966                 if (*(p + 1) == '=')
 967                 {
 968                     /* Combined adding and default */
 969                     p = test_line (edit_widget, p + 1, &accept_entry);
 970                     if (selected == 0 && accept_entry)
 971                         selected = menu_lines;
 972                 }
 973                 else
 974                 {
 975                     /* A condition for adding the entry */
 976                     p = test_line (edit_widget, p, &accept_entry);
 977                 }
 978             }
 979             else if (*p == '=')
 980             {
 981                 if (*(p + 1) == '+')
 982                 {
 983                     /* Combined adding and default */
 984                     p = test_line (edit_widget, p + 1, &accept_entry);
 985                     if (selected == 0 && accept_entry)
 986                         selected = menu_lines;
 987                 }
 988                 else
 989                 {
 990                     /* A condition for making the entry default */
 991                     i = 1;
 992                     p = test_line (edit_widget, p, &i);
 993                     if (selected == 0 && i)
 994                         selected = menu_lines;
 995                 }
 996             }
 997             else if (*p != ' ' && *p != '\t' && str_isprint (p))
 998             {
 999                 /* A menu entry title line */
1000                 if (accept_entry)
1001                     entries[menu_lines] = p;
1002                 else
1003                     accept_entry = 1;
1004             }
1005         }
1006         if (*p == '\n')
1007         {
1008             if (entries[menu_lines])
1009             {
1010                 menu_lines++;
1011                 accept_entry = 1;
1012             }
1013             max_cols = max (max_cols, col);
1014             col = 0;
1015         }
1016         else
1017         {
1018             if (*p == '\t')
1019                 *p = ' ';
1020             col++;
1021         }
1022     }
1023
1024     if (menu_lines == 0)
1025     {
1026         message (D_ERROR, MSG_ERROR, _("No suitable entries found in %s"), menu);
1027         res = FALSE;
1028     }
1029     else
1030     {
1031         if (selected_entry >= 0)
1032             selected = selected_entry;
1033         else
1034         {
1035             max_cols = min (max (max_cols, col), MAX_ENTRY_LEN);
1036
1037             /* Create listbox */
1038             listbox = create_listbox_window (menu_lines, max_cols + 2, _("User menu"),
1039                                              "[Menu File Edit]");
1040             /* insert all the items found */
1041             for (i = 0; i < menu_lines; i++)
1042             {
1043                 p = entries[i];
1044                 LISTBOX_APPEND_TEXT (listbox, (unsigned char) p[0],
1045                                      extract_line (p, p + MAX_ENTRY_LEN), p);
1046             }
1047             /* Select the default entry */
1048             listbox_select_entry (listbox->list, selected);
1049
1050             selected = run_listbox (listbox);
1051         }
1052         if (selected >= 0)
1053         {
1054             execute_menu_command (edit_widget, entries[selected], interactive);
1055             res = TRUE;
1056         }
1057
1058         do_refresh ();
1059     }
1060
1061     easy_patterns = old_patterns;
1062     g_free (menu);
1063     menu = NULL;
1064     g_free (entries);
1065     g_free (data);
1066     return res;
1067 }
1068
1069 /* --------------------------------------------------------------------------------------------- */