mc/src/user.c

/* User Menu implementation
   Copyright (C) 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
   2006, 2007 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

/** \file user.c
 *  \brief Source: user menu implementation
 */

#include <config.h>

#include <ctype.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "lib/global.h"
#include "lib/tty/tty.h"
#include "lib/skin.h"
#include "lib/search.h"
#include "lib/vfs/mc-vfs/vfs.h"
#include "lib/strutil.h"
#include "lib/widget/dialog.h"
#include "lib/widget/dialog-switch.h"
#include "lib/widget/widget.h"
#include "lib/widget/wtools.h"

#include "src/editor/edit.h"    /* WEdit, BLOCK_FILE */
#include "src/viewer/mcviewer.h"        /* for default_* externs */

#include "dir.h"
#include "panel.h"
#include "main.h"
#include "user.h"
#include "layout.h"
#include "execute.h"
#include "setup.h"
#include "history.h"

/*** global variables ****************************************************************************/

/*** file scope macro definitions ****************************************************************/

#define MAX_ENTRIES 16
#define MAX_ENTRY_LEN 60

/*** file scope type declarations ****************************************************************/

/*** file scope variables ************************************************************************/

static int debug_flag = 0;
static int debug_error = 0;
static char *menu = NULL;

/*** file scope functions ************************************************************************/
/* --------------------------------------------------------------------------------------------- */

/** strip file's extension */
static char *
strip_ext (char *ss)
{
    register char *s = ss;
    char *e = NULL;
    while (*s)
    {
        if (*s == '.')
            e = s;
        if (*s == PATH_SEP && e)
            e = NULL;           /* '.' in *directory* name */
        s++;
    }
    if (e)
        *e = 0;
    return ss;
}

/* --------------------------------------------------------------------------------------------- */
/**
 * Check for the "shell_patterns" directive.  If it's found and valid,
 * interpret it and move the pointer past the directive.  Return the
 * current pointer.
 */

static char *
check_patterns (char *p)
{
    static const char def_name[] = "shell_patterns=";
    char *p0 = p;

    if (strncmp (p, def_name, sizeof (def_name) - 1) != 0)
        return p0;

    p += sizeof (def_name) - 1;
    if (*p == '1')
        easy_patterns = 1;
    else if (*p == '0')
        easy_patterns = 0;
    else
        return p0;

    /* Skip spaces */
    p++;
    while (*p == '\n' || *p == '\t' || *p == ' ')
        p++;
    return p;
}

/* --------------------------------------------------------------------------------------------- */
/** Copies a whitespace separated argument from p to arg. Returns the
   point after argument. */

static char *
extract_arg (char *p, char *arg, int size)
{
    char *np;

    while (*p && (*p == ' ' || *p == '\t' || *p == '\n'))
        p++;
    /* support quote space .mnu */
    while (*p && (*p != ' ' || *(p - 1) == '\\') && *p != '\t' && *p != '\n')
    {
        np = str_get_next_char (p);
        if (np - p >= size)
            break;
        memcpy (arg, p, np - p);
        arg += np - p;
        size -= np - p;
        p = np;
    }
    *arg = 0;
    if (!*p || *p == '\n')
        str_prev_char (&p);
    return p;
}

/* --------------------------------------------------------------------------------------------- */
/* Tests whether the selected file in the panel is of any of the types
   specified in argument. */

static int
test_type (WPanel * panel, char *arg)
{
    int result = 0;             /* False by default */
    int st_mode = panel->dir.list[panel->selected].st.st_mode;

    for (; *arg != 0; arg++)
    {
        switch (*arg)
        {
        case 'n':              /* Not a directory */
            result |= !S_ISDIR (st_mode);
            break;
        case 'r':              /* Regular file */
            result |= S_ISREG (st_mode);
            break;
        case 'd':              /* Directory */
            result |= S_ISDIR (st_mode);
            break;
        case 'l':              /* Link */
            result |= S_ISLNK (st_mode);
            break;
        case 'c':              /* Character special */
            result |= S_ISCHR (st_mode);
            break;
        case 'b':              /* Block special */
            result |= S_ISBLK (st_mode);
            break;
        case 'f':              /* Fifo (named pipe) */
            result |= S_ISFIFO (st_mode);
            break;
        case 's':              /* Socket */
            result |= S_ISSOCK (st_mode);
            break;
        case 'x':              /* Executable */
            result |= (st_mode & 0111) ? 1 : 0;
            break;
        case 't':
            result |= panel->marked ? 1 : 0;
            break;
        default:
            debug_error = 1;
            break;
        }
    }
    return result;
}

/* --------------------------------------------------------------------------------------------- */
/** Calculates the truth value of the next condition starting from
   p. Returns the point after condition. */

static char *
test_condition (WEdit * edit_widget, char *p, int *condition)
{
    WPanel *panel;
    char arg[256];
    mc_search_type_t search_type;

    if (easy_patterns)
    {
        search_type = MC_SEARCH_T_GLOB;
    }
    else
    {
        search_type = MC_SEARCH_T_REGEX;
    }

    /* Handle one condition */
    for (; *p != '\n' && *p != '&' && *p != '|'; p++)
    {
        /* support quote space .mnu */
        if ((*p == ' ' && *(p - 1) != '\\') || *p == '\t')
            continue;
        if (*p >= 'a')
            panel = current_panel;
        else
        {
            if (get_other_type () == view_listing)
                panel = other_panel;
            else
                panel = NULL;
        }
        *p |= 0x20;

        switch (*p++)
        {
        case '!':
            p = test_condition (edit_widget, p, condition);
            *condition = !*condition;
            str_prev_char (&p);
            break;
        case 'f':              /* file name pattern */
            p = extract_arg (p, arg, sizeof (arg));
            *condition = panel
                && mc_search (arg, panel->dir.list[panel->selected].fname, search_type);
            break;
        case 'y':              /* syntax pattern */
#ifdef USE_INTERNAL_EDIT
            if (edit_widget)
            {
                const char *syntax_type = edit_get_syntax_type (edit_widget);
                if (syntax_type != NULL)
                {
                    p = extract_arg (p, arg, sizeof (arg));
                    *condition = panel && mc_search (arg, syntax_type, MC_SEARCH_T_NORMAL);
                }
            }
#endif
            break;
        case 'd':
            p = extract_arg (p, arg, sizeof (arg));
            *condition = panel && mc_search (arg, panel->cwd, search_type);
            break;
        case 't':
            p = extract_arg (p, arg, sizeof (arg));
            *condition = panel && test_type (panel, arg);
            break;
        case 'x':              /* executable */
            {
                struct stat status;

                p = extract_arg (p, arg, sizeof (arg));
                if (stat (arg, &status) == 0)
                    *condition = is_exe (status.st_mode);
                else
                    *condition = 0;
                break;
            }
        default:
            debug_error = 1;
            break;
        }                       /* switch */

    }                           /* while */
    return p;
}

/* --------------------------------------------------------------------------------------------- */
/** General purpose condition debug output handler */

static void
debug_out (char *start, char *end, int cond)
{
    static char *msg;
    int len;

    if (start == NULL && end == NULL)
    {
        /* Show output */
        if (debug_flag && msg)
        {
            len = strlen (msg);
            if (len)
                msg[len - 1] = 0;
            message (D_NORMAL, _("Debug"), "%s", msg);

        }
        debug_flag = 0;
        g_free (msg);
        msg = NULL;
    }
    else
    {
        const char *type;
        char *p;

        /* Save debug info for later output */
        if (!debug_flag)
            return;
        /* Save the result of the condition */
        if (debug_error)
        {
            type = _("ERROR:");
            debug_error = 0;
        }
        else if (cond)
            type = _("True:");
        else
            type = _("False:");
        /* This is for debugging, don't need to be super efficient.  */
        if (end == NULL)
            p = g_strdup_printf ("%s %s %c \n", msg ? msg : "", type, *start);
        else
            p = g_strdup_printf ("%s %s %.*s \n", msg ? msg : "", type, (int) (end - start), start);
        g_free (msg);
        msg = p;
    }
}

/* --------------------------------------------------------------------------------------------- */
/** Calculates the truth value of one lineful of conditions. Returns
   the point just before the end of line. */

static char *
test_line (WEdit * edit_widget, char *p, int *result)
{
    int condition;
    char operator;
    char *debug_start, *debug_end;

    /* Repeat till end of line */
    while (*p && *p != '\n')
    {
        /* support quote space .mnu */
        while ((*p == ' ' && *(p - 1) != '\\') || *p == '\t')
            p++;
        if (!*p || *p == '\n')
            break;
        operator = *p++;
        if (*p == '?')
        {
            debug_flag = 1;
            p++;
        }
        /* support quote space .mnu */
        while ((*p == ' ' && *(p - 1) != '\\') || *p == '\t')
            p++;
        if (!*p || *p == '\n')
            break;
        condition = 1;          /* True by default */

        debug_start = p;
        p = test_condition (edit_widget, p, &condition);
        debug_end = p;
        /* Add one debug statement */
        debug_out (debug_start, debug_end, condition);

        switch (operator)
        {
        case '+':
        case '=':
            /* Assignment */
            *result = condition;
            break;
        case '&':              /* Logical and */
            *result &= condition;
            break;
        case '|':              /* Logical or */
            *result |= condition;
            break;
        default:
            debug_error = 1;
            break;
        }                       /* switch */
        /* Add one debug statement */
        debug_out (&operator, NULL, *result);

    }                           /* while (*p != '\n') */
    /* Report debug message */
    debug_out (NULL, NULL, 1);

    if (!*p || *p == '\n')
        str_prev_char (&p);
    return p;
}

/* --------------------------------------------------------------------------------------------- */
/** FIXME: recode this routine on version 3.0, it could be cleaner */

static void
execute_menu_command (WEdit * edit_widget, const char *commands)
{
    FILE *cmd_file;
    int cmd_file_fd;
    int expand_prefix_found = 0;
    char *parameter = 0;
    gboolean do_quote = FALSE;
    char lc_prompt[80];
    int col;
    char *file_name;
    int run_view = 0;

    /* Skip menu entry title line */
    commands = strchr (commands, '\n');
    if (!commands)
    {
        return;
    }

    cmd_file_fd = mc_mkstemps (&file_name, "mcusr", SCRIPT_SUFFIX);

    if (cmd_file_fd == -1)
    {
        message (D_ERROR, MSG_ERROR, _("Cannot create temporary command file\n%s"),
                 unix_error_string (errno));
        return;
    }
    cmd_file = fdopen (cmd_file_fd, "w");
    fputs ("#! /bin/sh\n", cmd_file);
    commands++;

    for (col = 0; *commands; commands++)
    {
        if (col == 0)
        {
            if (*commands != ' ' && *commands != '\t')
                break;
            while (*commands == ' ' || *commands == '\t')
                commands++;
            if (*commands == 0)
                break;
        }
        col++;
        if (*commands == '\n')
            col = 0;
        if (parameter)
        {
            if (*commands == '}')
            {
                char *tmp;
                *parameter = 0;
                parameter =
                    input_dialog (_("Parameter"), lc_prompt, MC_HISTORY_FM_MENU_EXEC_PARAM, "");
                if (!parameter || !*parameter)
                {
                    /* User canceled */
                    fclose (cmd_file);
                    unlink (file_name);
                    g_free (file_name);
                    return;
                }
                if (do_quote)
                {
                    tmp = name_quote (parameter, 0);
                    fputs (tmp, cmd_file);
                    g_free (tmp);
                }
                else
                    fputs (parameter, cmd_file);
                g_free (parameter);
                parameter = 0;
            }
            else
            {
                if (parameter < &lc_prompt[sizeof (lc_prompt) - 1])
                {
                    *parameter++ = *commands;
                }
            }
        }
        else if (expand_prefix_found)
        {
            expand_prefix_found = 0;
            if (g_ascii_isdigit ((gchar) * commands))
            {
                do_quote = (atoi (commands) != 0);
                while (g_ascii_isdigit ((gchar) * commands))
                    commands++;
            }
            if (*commands == '{')
                parameter = lc_prompt;
            else
            {
                char *text = expand_format (edit_widget, *commands, do_quote);
                fputs (text, cmd_file);
                g_free (text);
            }
        }
        else
        {
            if (*commands == '%')
            {
                int i = check_format_view (commands + 1);
                if (i)
                {
                    commands += i;
                    run_view = 1;
                }
                else
                {
                    do_quote = TRUE;    /* Default: Quote expanded macro */
                    expand_prefix_found = 1;
                }
            }
            else
                fputc (*commands, cmd_file);
        }
    }
    fclose (cmd_file);
    chmod (file_name, S_IRWXU);
    if (run_view)
    {
        mcview_viewer (file_name, NULL, 0);
        dialog_switch_process_pending ();
    }
    else
    {
        /* execute the command indirectly to allow execution even
         * on no-exec filesystems. */
        char *cmd = g_strconcat ("/bin/sh ", file_name, (char *) NULL);
        shell_execute (cmd, EXECUTE_HIDE);
        g_free (cmd);
    }
    unlink (file_name);
    g_free (file_name);
}

/* --------------------------------------------------------------------------------------------- */
/**
 **     Check owner of the menu file. Using menu file is allowed, if
 **     owner of the menu is root or the actual user. In either case
 **     file should not be group and word-writable.
 **
 **     Q. Should we apply this routine to system and home menu (and .ext files)?
 */

static int
menu_file_own (char *path)
{
    struct stat st;

    if (stat (path, &st) == 0
        && (!st.st_uid || (st.st_uid == geteuid ())) && ((st.st_mode & (S_IWGRP | S_IWOTH)) == 0))
    {
        return 1;
    }
    if (verbose)
    {
        message (D_NORMAL, _("Warning -- ignoring file"),
                 _("File %s is not owned by root or you or is world writable.\n"
                   "Using it may compromise your security"), path);
    }
    return 0;
}

/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */

/* Formats defined:
   %%  The % character
   %f  The current file (if non-local vfs, file will be copied locally and
   %f will be full path to it).
   %p  The current file
   %d  The current working directory
   %s  "Selected files"; the tagged files if any, otherwise the current file
   %t  Tagged files
   %u  Tagged files (and they are untagged on return from expand_format)
   %view Runs the commands and pipes standard output to the view command.
   If %view is immediately followed by '{', recognize keywords
   ascii, hex, nroff and unform

   If the format letter is in uppercase, it refers to the other panel.

   With a number followed the % character you can turn quoting on (default)
   and off. For example:
   %f    quote expanded macro
   %1f   ditto
   %0f   don't quote expanded macro

   expand_format returns a memory block that must be free()d.
 */

/* Returns how many characters we should advance if %view was found */
int
check_format_view (const char *p)
{
    const char *q = p;
    if (!strncmp (p, "view", 4))
    {
        q += 4;
        if (*q == '{')
        {
            for (q++; *q && *q != '}'; q++)
            {
                if (!strncmp (q, "ascii", 5))
                {
                    mcview_default_hex_mode = 0;
                    q += 4;
                }
                else if (!strncmp (q, "hex", 3))
                {
                    mcview_default_hex_mode = 1;
                    q += 2;
                }
                else if (!strncmp (q, "nroff", 5))
                {
                    mcview_default_nroff_flag = 1;
                    q += 4;
                }
                else if (!strncmp (q, "unform", 6))
                {
                    mcview_default_nroff_flag = 0;
                    q += 5;
                }
            }
            if (*q == '}')
                q++;
        }
        return q - p;
    }
    return 0;
}

/* --------------------------------------------------------------------------------------------- */

int
check_format_cd (const char *p)
{
    return (strncmp (p, "cd", 2)) ? 0 : 3;
}

/* --------------------------------------------------------------------------------------------- */
/* Check if p has a "^var\{var-name\}" */
/* Returns the number of skipped characters (zero on not found) */
/* V will be set to the expanded variable name */

int
check_format_var (const char *p, char **v)
{
    const char *q = p;
    char *var_name;
    const char *value;
    const char *dots = 0;

    *v = 0;
    if (!strncmp (p, "var{", 4))
    {
        for (q += 4; *q && *q != '}'; q++)
        {
            if (*q == ':')
                dots = q + 1;
        }
        if (!*q)
            return 0;

        if (!dots || dots == q + 5)
        {
            message (D_ERROR,
                     _("Format error on file Extensions File"),
                     !dots ? _("The %%var macro has no default")
                     : _("The %%var macro has no variable"));
            return 0;
        }

        /* Copy the variable name */
        var_name = g_strndup (p + 4, dots - 2 - (p + 3));

        value = getenv (var_name);
        g_free (var_name);
        if (value)
        {
            *v = g_strdup (value);
            return q - p;
        }
        var_name = g_strndup (dots, q - dots);
        *v = var_name;
        return q - p;
    }
    return 0;
}

/* --------------------------------------------------------------------------------------------- */

char *
expand_format (struct WEdit *edit_widget, char c, gboolean do_quote)
{
    WPanel *panel = NULL;
    char *(*quote_func) (const char *, int);
    char *fname = NULL;
    char *result;
    char c_lc;

#ifndef USE_INTERNAL_EDIT
    (void) edit_widget;
#endif

    if (c == '%')
        return g_strdup ("%");

    if (mc_run_mode == MC_RUN_FULL)
    {
        if (g_ascii_islower ((gchar) c))
            panel = current_panel;
        else
        {
            if (get_other_type () != view_listing)
                return g_strdup ("");
            panel = other_panel;
        }
        fname = panel->dir.list[panel->selected].fname;
    }
#ifdef USE_INTERNAL_EDIT
    else if (mc_run_mode == MC_RUN_EDITOR)
        fname = (char *) edit_get_file_name (edit_widget);
#endif

    if (do_quote)
        quote_func = name_quote;
    else
        quote_func = fake_name_quote;

    c_lc = g_ascii_tolower ((gchar) c);

    switch (c_lc)
    {
    case 'f':
    case 'p':
        return (*quote_func) (fname, 0);
    case 'x':
        return (*quote_func) (extension (fname), 0);
    case 'd':
        {
            char *cwd;
            char *qstr;

            cwd = g_malloc (MC_MAXPATHLEN + 1);

            if (panel)
                g_strlcpy (cwd, panel->cwd, MC_MAXPATHLEN + 1);
            else
                mc_get_current_wd (cwd, MC_MAXPATHLEN + 1);

            qstr = (*quote_func) (cwd, 0);

            g_free (cwd);

            return qstr;
        }
    case 'i':                  /* indent equal number cursor position in line */
#ifdef USE_INTERNAL_EDIT
        if (edit_widget)
            return g_strnfill (edit_get_curs_col (edit_widget), ' ');
#endif
        break;
    case 'y':                  /* syntax type */
#ifdef USE_INTERNAL_EDIT
        if (edit_widget)
        {
            const char *syntax_type = edit_get_syntax_type (edit_widget);
            if (syntax_type != NULL)
                return g_strdup (syntax_type);
        }
#endif
        break;
    case 'k':                  /* block file name */
    case 'b':                  /* block file name / strip extension */
        {
#ifdef USE_INTERNAL_EDIT
            if (edit_widget)
            {
                char *file = concat_dir_and_file (home_dir, EDIT_BLOCK_FILE);
                fname = (*quote_func) (file, 0);
                g_free (file);
                return fname;
            }
#endif
            if (c_lc == 'b')
                return strip_ext ((*quote_func) (fname, 0));
            break;
        }
    case 'n':                  /* strip extension in editor */
#ifdef USE_INTERNAL_EDIT
        if (edit_widget)
            return strip_ext ((*quote_func) (fname, 0));
#endif
        break;
    case 'm':                  /* menu file name */
        if (menu)
            return (*quote_func) (menu, 0);
        break;
    case 's':
        if (!panel || !panel->marked)
            return (*quote_func) (fname, 0);

        /* Fall through */

    case 't':
    case 'u':
        {
            int length = 2, i;
            char *block, *tmp;

            if (!panel)
                return g_strdup ("");

            for (i = 0; i < panel->count; i++)
                if (panel->dir.list[i].f.marked)
                    length += strlen (panel->dir.list[i].fname) + 1;    /* for space */

            block = g_malloc (length * 2 + 1);
            *block = 0;
            for (i = 0; i < panel->count; i++)
                if (panel->dir.list[i].f.marked)
                {
                    tmp = (*quote_func) (panel->dir.list[i].fname, 0);
                    strcat (block, tmp);
                    g_free (tmp);
                    strcat (block, " ");
                    if (c_lc == 'u')
                        do_file_mark (panel, i, 0);
                }
            return block;
        }                       /* sub case block */
    }                           /* switch */
    result = g_strdup ("% ");
    result[1] = c;
    return result;
}

/* --------------------------------------------------------------------------------------------- */
/**
 * If edit_widget is NULL then we are called from the mc menu,
 * otherwise we are called from the mcedit menu.
 */

void
user_menu_cmd (struct WEdit *edit_widget)
{
    char *p;
    char *data, **entries;
    int max_cols, menu_lines, menu_limit;
    int col, i, accept_entry = 1;
    int selected, old_patterns;
    Listbox *listbox;

    if (!vfs_current_is_local ())
    {
        message (D_ERROR, MSG_ERROR, "%s", _("Cannot execute commands on non-local filesystems"));
        return;
    }

    menu = g_strdup (edit_widget ? EDIT_LOCAL_MENU : MC_LOCAL_MENU);
    if (!exist_file (menu) || !menu_file_own (menu))
    {
        g_free (menu);
        if (edit_widget)
            menu = concat_dir_and_file (home_dir, EDIT_HOME_MENU);
        else
            menu = g_build_filename (home_dir, MC_USERCONF_DIR, MC_USERMENU_FILE, NULL);


        if (!exist_file (menu))
        {
            g_free (menu);
            menu = concat_dir_and_file (mc_home, edit_widget ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU);
            if (!exist_file (menu))
            {
                g_free (menu);
                menu = concat_dir_and_file
                    (mc_home_alt, edit_widget ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU);
            }
        }
    }

    data = load_file (menu);
    if (data == NULL)
    {
        message (D_ERROR, MSG_ERROR, _("Cannot open file%s\n%s"), menu, unix_error_string (errno));
        g_free (menu);
        menu = NULL;
        return;
    }

    max_cols = 0;
    selected = 0;
    menu_limit = 0;
    entries = 0;

    /* Parse the menu file */
    old_patterns = easy_patterns;
    p = check_patterns (data);
    for (menu_lines = col = 0; *p; str_next_char (&p))
    {
        if (menu_lines >= menu_limit)
        {
            char **new_entries;

            menu_limit += MAX_ENTRIES;
            new_entries = g_try_realloc (entries, sizeof (new_entries[0]) * menu_limit);

            if (new_entries == NULL)
                break;

            entries = new_entries;
            new_entries += menu_limit;
            while (--new_entries >= &entries[menu_lines])
                *new_entries = NULL;
        }
        if (col == 0 && !entries[menu_lines])
        {
            if (*p == '#')
            {
                /* A commented menu entry */
                accept_entry = 1;
            }
            else if (*p == '+')
            {
                if (*(p + 1) == '=')
                {
                    /* Combined adding and default */
                    p = test_line (edit_widget, p + 1, &accept_entry);
                    if (selected == 0 && accept_entry)
                        selected = menu_lines;
                }
                else
                {
                    /* A condition for adding the entry */
                    p = test_line (edit_widget, p, &accept_entry);
                }
            }
            else if (*p == '=')
            {
                if (*(p + 1) == '+')
                {
                    /* Combined adding and default */
                    p = test_line (edit_widget, p + 1, &accept_entry);
                    if (selected == 0 && accept_entry)
                        selected = menu_lines;
                }
                else
                {
                    /* A condition for making the entry default */
                    i = 1;
                    p = test_line (edit_widget, p, &i);
                    if (selected == 0 && i)
                        selected = menu_lines;
                }
            }
            else if (*p != ' ' && *p != '\t' && str_isprint (p))
            {
                /* A menu entry title line */
                if (accept_entry)
                    entries[menu_lines] = p;
                else
                    accept_entry = 1;
            }
        }
        if (*p == '\n')
        {
            if (entries[menu_lines])
            {
                menu_lines++;
                accept_entry = 1;
            }
            max_cols = max (max_cols, col);
            col = 0;
        }
        else
        {
            if (*p == '\t')
                *p = ' ';
            col++;
        }
    }

    if (menu_lines == 0)
        message (D_ERROR, MSG_ERROR, _("No suitable entries found in %s"), menu);
    else
    {
        max_cols = min (max (max_cols, col), MAX_ENTRY_LEN);

        /* Create listbox */
        listbox = create_listbox_window (menu_lines, max_cols + 2, _("User menu"),
                                         "[Menu File Edit]");
        /* insert all the items found */
        for (i = 0; i < menu_lines; i++)
        {
            p = entries[i];
            LISTBOX_APPEND_TEXT (listbox, (unsigned char) p[0],
                                 extract_line (p, p + MAX_ENTRY_LEN), p);
        }
        /* Select the default entry */
        listbox_select_entry (listbox->list, selected);

        selected = run_listbox (listbox);
        if (selected >= 0)
            execute_menu_command (edit_widget, entries[selected]);

        do_refresh ();
    }

    easy_patterns = old_patterns;
    g_free (menu);
    menu = NULL;
    g_free (entries);
    g_free (data);
}

/* --------------------------------------------------------------------------------------------- */