Adding upstream version 3:4.8.29.upstream/3%4.8.29upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 844 insertions, 0 deletions

diff --git a/src/args.c b/src/args.c
new file mode 100644
index 0000000..e725fa7
--- /dev/null
+++ b/src/args.c
@@ -0,0 +1,844 @@
+/*
+   Handle command line arguments.
+
+   Copyright (C) 2009-2022
+   Free Software Foundation, Inc.
+
+   Written by:
+   Slava Zanko <slavazanko@gmail.com>, 2009.
+   Andrew Borodin <aborodin@vmail.ru>, 2011, 2012.
+
+   This file is part of the Midnight Commander.
+
+   The Midnight Commander 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 3 of the License,
+   or (at your option) any later version.
+
+   The Midnight Commander 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "lib/global.h"
+#include "lib/tty/tty.h"
+#include "lib/strutil.h"
+#include "lib/vfs/vfs.h"
+#include "lib/util.h"           /* x_basename() */
+
+#include "src/textconf.h"
+
+#include "src/args.h"
+
+/*** external variables **************************************************************************/
+
+/*** global variables ****************************************************************************/
+
+/* If true, assume we are running on an xterm terminal */
+gboolean mc_args__force_xterm = FALSE;
+
+gboolean mc_args__nomouse = FALSE;
+
+/* Force colors, only used by Slang */
+gboolean mc_args__force_colors = FALSE;
+
+/* Don't load keymap from file and use default one */
+gboolean mc_args__nokeymap = FALSE;
+
+char *mc_args__last_wd_file = NULL;
+
+/* when enabled NETCODE, use folowing file as logfile */
+char *mc_args__netfs_logfile = NULL;
+
+/* keymap file */
+char *mc_args__keymap_file = NULL;
+
+void *mc_run_param0 = NULL;
+char *mc_run_param1 = NULL;
+
+/*** file scope macro definitions ****************************************************************/
+
+/*** file scope type declarations ****************************************************************/
+
+/*** file scope variables ************************************************************************/
+
+/* If true, show version info and exit */
+static gboolean mc_args__show_version = FALSE;
+
+/* forward declarations */
+static gboolean parse_mc_e_argument (const gchar * option_name, const gchar * value,
+                                     gpointer data, GError ** mcerror);
+static gboolean parse_mc_v_argument (const gchar * option_name, const gchar * value,
+                                     gpointer data, GError ** mcerror);
+
+static GOptionContext *context;
+
+#ifdef ENABLE_SUBSHELL
+static gboolean mc_args__nouse_subshell = FALSE;
+#endif /* ENABLE_SUBSHELL */
+static gboolean mc_args__show_datadirs = FALSE;
+static gboolean mc_args__show_datadirs_extended = FALSE;
+#ifdef ENABLE_CONFIGURE_ARGS
+static gboolean mc_args__show_configure_opts = FALSE;
+#endif
+
+static GOptionGroup *main_group;
+
+static const GOptionEntry argument_main_table[] = {
+    /* *INDENT-OFF* */
+    /* generic options */
+    {
+     "version", 'V', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
+     &mc_args__show_version,
+     N_("Displays the current version"),
+     NULL
+    },
+
+    /* options for wrappers */
+    {
+     "datadir", 'f', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
+     &mc_args__show_datadirs,
+     N_("Print data directory"),
+     NULL
+    },
+
+    /* show extended information about used data directories */
+    {
+     "datadir-info", 'F', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
+     &mc_args__show_datadirs_extended,
+     N_("Print extended info about used data directories"),
+     NULL
+    },
+
+#ifdef ENABLE_CONFIGURE_ARGS
+    /* show configure options */
+    {
+     "configure-options", '\0', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
+     &mc_args__show_configure_opts,
+     N_("Print configure options"),
+     NULL
+    },
+#endif
+
+    {
+     "printwd", 'P', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_STRING,
+     &mc_args__last_wd_file,
+     N_("Print last working directory to specified file"),
+     N_("<file>")
+    },
+
+#ifdef ENABLE_SUBSHELL
+    {
+     "subshell", 'U', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
+     &mc_global.tty.use_subshell,
+     N_("Enables subshell support (default)"),
+     NULL
+    },
+
+    {
+     "nosubshell", 'u', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
+     &mc_args__nouse_subshell,
+     N_("Disables subshell support"),
+     NULL
+    },
+#endif
+
+    /* debug options */
+#ifdef ENABLE_VFS_FTP
+    {
+     "ftplog", 'l', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_STRING,
+     &mc_args__netfs_logfile,
+     N_("Log ftp dialog to specified file"),
+     N_("<file>")
+    },
+#endif /* ENABLE_VFS_FTP */
+
+    {
+     /* handle arguments manually */
+     "view", 'v', G_OPTION_FLAG_IN_MAIN | G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK,
+     (gpointer) parse_mc_v_argument,
+     N_("Launches the file viewer on a file"),
+     N_("<file>")
+    },
+
+    {
+     /* handle arguments manually */
+     "edit", 'e', G_OPTION_FLAG_IN_MAIN | G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK,
+     (gpointer) parse_mc_e_argument,
+     N_("Edit files"),
+     N_("<file> ...")
+    },
+
+    G_OPTION_ENTRY_NULL
+    /* *INDENT-ON* */
+};
+
+static GOptionGroup *terminal_group;
+#define ARGS_TERM_OPTIONS 0
+static const GOptionEntry argument_terminal_table[] = {
+    /* *INDENT-OFF* */
+    /* terminal options */
+    {
+     "xterm", 'x', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
+     &mc_args__force_xterm,
+     N_("Forces xterm features"),
+     NULL
+    },
+
+    {
+     "no-x11", 'X', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
+     &mc_global.tty.disable_x11,
+     N_("Disable X11 support"),
+     NULL
+    },
+
+    {
+     "oldmouse", 'g', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
+     &mc_global.tty.old_mouse,
+     N_("Tries to use an old highlight mouse tracking"),
+     NULL
+    },
+
+    {
+     "nomouse", 'd', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
+     &mc_args__nomouse,
+     N_("Disable mouse support in text version"),
+     NULL
+    },
+
+#ifdef HAVE_SLANG
+    {
+     "termcap", 't', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
+     &SLtt_Try_Termcap,
+     N_("Tries to use termcap instead of terminfo"),
+     NULL
+    },
+#endif
+
+    {
+     "slow", 's', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
+     &mc_global.tty.slow_terminal,
+     N_("To run on slow terminals"),
+     NULL
+    },
+
+    {
+     "stickchars", 'a', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
+     &mc_global.tty.ugly_line_drawing,
+     N_("Use stickchars to draw"),
+     NULL
+    },
+
+#ifdef HAVE_SLANG
+    {
+     "resetsoft", 'k', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
+     &reset_hp_softkeys,
+     N_("Resets soft keys on HP terminals"),
+     NULL
+    },
+#endif
+
+    {
+     "keymap", 'K', ARGS_TERM_OPTIONS, G_OPTION_ARG_STRING,
+     &mc_args__keymap_file,
+     N_("Load definitions of key bindings from specified file"),
+     N_("<file>")
+    },
+
+    {
+     "nokeymap", '\0', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
+     &mc_args__nokeymap,
+     N_("Don't load definitions of key bindings from file, use defaults"),
+     NULL
+    },
+
+    G_OPTION_ENTRY_NULL
+    /* *INDENT-ON* */
+};
+
+#undef ARGS_TERM_OPTIONS
+
+static GOptionGroup *color_group;
+#define ARGS_COLOR_OPTIONS 0
+/* #define ARGS_COLOR_OPTIONS G_OPTION_FLAG_IN_MAIN */
+static const GOptionEntry argument_color_table[] = {
+    /* *INDENT-OFF* */
+    /* color options */
+    {
+     "nocolor", 'b', ARGS_COLOR_OPTIONS, G_OPTION_ARG_NONE,
+     &mc_global.tty.disable_colors,
+     N_("Requests to run in black and white"),
+     NULL
+    },
+
+    {
+     "color", 'c', ARGS_COLOR_OPTIONS, G_OPTION_ARG_NONE,
+     &mc_args__force_colors,
+     N_("Request to run in color mode"),
+     NULL
+    },
+
+    {
+     "colors", 'C', ARGS_COLOR_OPTIONS, G_OPTION_ARG_STRING,
+     &mc_global.tty.command_line_colors,
+     N_("Specifies a color configuration"),
+     N_("<string>")
+    },
+
+    {
+     "skin", 'S', ARGS_COLOR_OPTIONS, G_OPTION_ARG_STRING,
+     &mc_global.tty.skin,
+     N_("Show mc with specified skin"),
+     N_("<string>")
+    },
+
+    G_OPTION_ENTRY_NULL
+    /* *INDENT-ON* */
+};
+
+#undef ARGS_COLOR_OPTIONS
+
+static gchar *mc_args__loc__colors_string = NULL;
+static gchar *mc_args__loc__footer_string = NULL;
+static gchar *mc_args__loc__header_string = NULL;
+static gchar *mc_args__loc__usage_string = NULL;
+
+/* --------------------------------------------------------------------------------------------- */
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+mc_args_clean_temp_help_strings (void)
+{
+    MC_PTR_FREE (mc_args__loc__colors_string);
+    MC_PTR_FREE (mc_args__loc__footer_string);
+    MC_PTR_FREE (mc_args__loc__header_string);
+    MC_PTR_FREE (mc_args__loc__usage_string);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static GOptionGroup *
+mc_args_new_color_group (void)
+{
+    /* *INDENT-OFF* */
+    /* FIXME: to preserve translations, lines should be split. */
+    mc_args__loc__colors_string = g_strdup_printf ("%s\n%s",
+                                                   /* TRANSLATORS: don't translate keywords */
+                                                   _("--colors KEYWORD={FORE},{BACK},{ATTR}:KEYWORD2=...\n\n"
+                                                     "{FORE}, {BACK} and {ATTR} can be omitted, and the default will be used\n"
+                                                     "\n Keywords:\n"
+                                                     "   Global:       errors, disabled, reverse, gauge, header\n"
+                                                     "                 input, inputmark, inputunchanged, commandlinemark\n"
+                                                     "                 bbarhotkey, bbarbutton, statusbar\n"
+                                                     "   File display: normal, selected, marked, markselect\n"
+                                                     "   Dialog boxes: dnormal, dfocus, dhotnormal, dhotfocus, errdhotnormal,\n"
+                                                     "                 errdhotfocus\n"
+                                                     "   Menus:        menunormal, menuhot, menusel, menuhotsel, menuinactive\n"
+                                                     "   Popup menus:  pmenunormal, pmenusel, pmenutitle\n"
+                                                     "   Editor:       editnormal, editbold, editmarked, editwhitespace,\n"
+                                                     "                 editlinestate, editbg, editframe, editframeactive\n"
+                                                     "                 editframedrag\n"
+                                                     "   Viewer:       viewnormal,viewbold, viewunderline, viewselected\n"
+                                                     "   Help:         helpnormal, helpitalic, helpbold, helplink, helpslink\n"),
+                                                   /* TRANSLATORS: don't translate color names and attributes */
+                                                   _("Standard Colors:\n"
+                                                    "   black, gray, red, brightred, green, brightgreen, brown,\n"
+                                                    "   yellow, blue, brightblue, magenta, brightmagenta, cyan,\n"
+                                                    "   brightcyan, lightgray and white\n\n"
+                                                    "Extended colors, when 256 colors are available:\n"
+                                                    "   color16 to color255, or rgb000 to rgb555 and gray0 to gray23\n\n"
+                                                    "Attributes:\n"
+                                                    "   bold, italic, underline, reverse, blink; append more with '+'\n")
+                                                    );
+    /* *INDENT-ON* */
+
+    return g_option_group_new ("color", mc_args__loc__colors_string,
+                               _("Color options"), NULL, NULL);
+
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static gchar *
+mc_args_add_usage_info (void)
+{
+    gchar *s;
+
+    switch (mc_global.mc_run_mode)
+    {
+    case MC_RUN_EDITOR:
+        s = g_strdup_printf ("%s\n", _("[+lineno] file1[:lineno] [file2[:lineno]...]"));
+        break;
+    case MC_RUN_VIEWER:
+        s = g_strdup_printf ("%s\n", _("file"));
+        break;
+#ifdef USE_DIFF_VIEW
+    case MC_RUN_DIFFVIEWER:
+        s = g_strdup_printf ("%s\n", _("file1 file2"));
+        break;
+#endif /* USE_DIFF_VIEW */
+    case MC_RUN_FULL:
+    default:
+        s = g_strdup_printf ("%s\n", _("[this_dir] [other_panel_dir]"));
+    }
+
+    mc_args__loc__usage_string = s;
+
+    return mc_args__loc__usage_string;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+mc_args_add_extended_info_to_help (void)
+{
+    mc_args__loc__footer_string = g_strdup_printf ("%s",
+                                                   _
+                                                   ("\n"
+                                                    "Please send any bug reports (including the output of 'mc -V')\n"
+                                                    "as tickets at www.midnight-commander.org\n"));
+    mc_args__loc__header_string =
+        g_strdup_printf (_("GNU Midnight Commander %s\n"), mc_global.mc_version);
+
+    g_option_context_set_description (context, mc_args__loc__footer_string);
+    g_option_context_set_summary (context, mc_args__loc__header_string);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static gchar *
+mc_args__convert_help_to_syscharset (const gchar * charset, const gchar * error_message_str,
+                                     const gchar * help_str)
+{
+    GString *buffer;
+    GIConv conv;
+    gchar *full_help_str;
+
+    buffer = g_string_new ("");
+    conv = g_iconv_open (charset, "UTF-8");
+    full_help_str = g_strdup_printf ("%s\n\n%s\n", error_message_str, help_str);
+
+    str_convert (conv, full_help_str, buffer);
+
+    g_free (full_help_str);
+    g_iconv_close (conv);
+
+    return g_string_free (buffer, FALSE);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static gboolean
+parse_mc_e_argument (const gchar * option_name, const gchar * value, gpointer data,
+                     GError ** mcerror)
+{
+    (void) option_name;
+    (void) value;
+    (void) data;
+
+    mc_return_val_if_error (mcerror, FALSE);
+
+    mc_global.mc_run_mode = MC_RUN_EDITOR;
+
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static gboolean
+parse_mc_v_argument (const gchar * option_name, const gchar * value, gpointer data,
+                     GError ** mcerror)
+{
+    (void) option_name;
+    (void) value;
+    (void) data;
+
+    mc_return_val_if_error (mcerror, FALSE);
+
+    mc_global.mc_run_mode = MC_RUN_VIEWER;
+
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Create mcedit_arg_t object from vfs_path_t object and the line number.
+ *
+ * @param file_vpath  file path object
+ * @param line_number line number. If value is 0, try to restore saved position.
+ * @return mcedit_arg_t object
+ */
+
+static mcedit_arg_t *
+mcedit_arg_vpath_new (vfs_path_t * file_vpath, long line_number)
+{
+    mcedit_arg_t *arg;
+
+    arg = g_new (mcedit_arg_t, 1);
+    arg->file_vpath = file_vpath;
+    arg->line_number = line_number;
+
+    return arg;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Create mcedit_arg_t object from file name and the line number.
+ *
+ * @param file_name   file name
+ * @param line_number line number. If value is 0, try to restore saved position.
+ * @return mcedit_arg_t object
+ */
+
+static mcedit_arg_t *
+mcedit_arg_new (const char *file_name, long line_number)
+{
+    return mcedit_arg_vpath_new (vfs_path_from_str (file_name), line_number);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Get list of filenames (and line numbers) from command line, when mc called as editor
+ *
+ * @param argc count of all arguments
+ * @param argv array of strings, contains arguments
+ * @return list of mcedit_arg_t objects
+ */
+
+static GList *
+parse_mcedit_arguments (int argc, char **argv)
+{
+    GList *flist = NULL;
+    int i;
+    long first_line_number = -1;
+
+    for (i = 0; i < argc; i++)
+    {
+        char *tmp;
+        char *end, *p;
+        mcedit_arg_t *arg;
+
+        tmp = argv[i];
+
+        /*
+         * First, try to get line number as +lineno.
+         */
+        if (*tmp == '+')
+        {
+            long lineno;
+            char *error;
+
+            lineno = strtol (tmp + 1, &error, 10);
+
+            if (*error == '\0')
+            {
+                /* this is line number */
+                first_line_number = lineno;
+                continue;
+            }
+            /* this is file name */
+        }
+
+        /*
+         * Check for filename:lineno, followed by an optional colon.
+         * This format is used by many programs (especially compilers)
+         * in error messages and warnings. It is supported so that
+         * users can quickly copy and paste file locations.
+         */
+        end = tmp + strlen (tmp);
+        p = end;
+
+        if (p > tmp && p[-1] == ':')
+            p--;
+        while (p > tmp && g_ascii_isdigit ((gchar) p[-1]))
+            p--;
+
+        if (tmp < p && p < end && p[-1] == ':')
+        {
+            char *fname;
+            vfs_path_t *tmp_vpath, *fname_vpath;
+            struct stat st;
+
+            fname = g_strndup (tmp, p - 1 - tmp);
+            tmp_vpath = vfs_path_from_str (tmp);
+            fname_vpath = vfs_path_from_str (fname);
+
+            /*
+             * Check that the file before the colon actually exists.
+             * If it doesn't exist, create new file.
+             */
+            if (mc_stat (tmp_vpath, &st) == -1 && mc_stat (fname_vpath, &st) != -1)
+            {
+                arg = mcedit_arg_vpath_new (fname_vpath, atoi (p));
+                vfs_path_free (tmp_vpath, TRUE);
+            }
+            else
+            {
+                arg = mcedit_arg_vpath_new (tmp_vpath, 0);
+                vfs_path_free (fname_vpath, TRUE);
+            }
+
+            g_free (fname);
+        }
+        else
+            arg = mcedit_arg_new (tmp, 0);
+
+        flist = g_list_prepend (flist, arg);
+    }
+
+    if (flist == NULL)
+        flist = g_list_prepend (flist, mcedit_arg_new (NULL, 0));
+    else if (first_line_number != -1)
+    {
+        /* overwrite line number for first file */
+        GList *l;
+
+        l = g_list_last (flist);
+        ((mcedit_arg_t *) l->data)->line_number = first_line_number;
+    }
+
+    return flist;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+void
+mc_setup_run_mode (char **argv)
+{
+    const char *base;
+
+    base = x_basename (argv[0]);
+
+    if (strncmp (base, "mce", 3) == 0 || strcmp (base, "vi") == 0)
+    {
+        /* mce* or vi is link to mc */
+        mc_global.mc_run_mode = MC_RUN_EDITOR;
+    }
+    else if (strncmp (base, "mcv", 3) == 0 || strcmp (base, "view") == 0)
+    {
+        /* mcv* or view is link to mc */
+        mc_global.mc_run_mode = MC_RUN_VIEWER;
+    }
+#ifdef USE_DIFF_VIEW
+    else if (strncmp (base, "mcd", 3) == 0 || strcmp (base, "diff") == 0)
+    {
+        /* mcd* or diff is link to mc */
+        mc_global.mc_run_mode = MC_RUN_DIFFVIEWER;
+    }
+#endif /* USE_DIFF_VIEW */
+}
+
+gboolean
+mc_args_parse (int *argc, char ***argv, const char *translation_domain, GError ** mcerror)
+{
+    const gchar *_system_codepage;
+    gboolean ok = TRUE;
+
+    mc_return_val_if_error (mcerror, FALSE);
+
+    _system_codepage = str_detect_termencoding ();
+
+#ifdef ENABLE_NLS
+    if (!str_isutf8 (_system_codepage))
+        bind_textdomain_codeset ("mc", "UTF-8");
+#endif
+
+    context = g_option_context_new (mc_args_add_usage_info ());
+
+    g_option_context_set_ignore_unknown_options (context, FALSE);
+
+    mc_args_add_extended_info_to_help ();
+
+    main_group = g_option_group_new ("main", _("Main options"), _("Main options"), NULL, NULL);
+
+    g_option_group_add_entries (main_group, argument_main_table);
+    g_option_context_set_main_group (context, main_group);
+    g_option_group_set_translation_domain (main_group, translation_domain);
+
+    terminal_group = g_option_group_new ("terminal", _("Terminal options"),
+                                         _("Terminal options"), NULL, NULL);
+
+    g_option_group_add_entries (terminal_group, argument_terminal_table);
+    g_option_context_add_group (context, terminal_group);
+    g_option_group_set_translation_domain (terminal_group, translation_domain);
+
+    color_group = mc_args_new_color_group ();
+
+    g_option_group_add_entries (color_group, argument_color_table);
+    g_option_context_add_group (context, color_group);
+    g_option_group_set_translation_domain (color_group, translation_domain);
+
+    if (!g_option_context_parse (context, argc, argv, mcerror))
+    {
+        if (*mcerror == NULL)
+            mc_propagate_error (mcerror, 0, "%s\n", _("Arguments parse error!"));
+        else
+        {
+            gchar *help_str;
+
+            help_str = g_option_context_get_help (context, TRUE, NULL);
+
+            if (str_isutf8 (_system_codepage))
+                mc_replace_error (mcerror, (*mcerror)->code, "%s\n\n%s\n", (*mcerror)->message,
+                                  help_str);
+            else
+            {
+                gchar *full_help_str;
+
+                full_help_str =
+                    mc_args__convert_help_to_syscharset (_system_codepage, (*mcerror)->message,
+                                                         help_str);
+                mc_replace_error (mcerror, (*mcerror)->code, "%s", full_help_str);
+                g_free (full_help_str);
+            }
+            g_free (help_str);
+        }
+
+        ok = FALSE;
+    }
+
+    g_option_context_free (context);
+    mc_args_clean_temp_help_strings ();
+
+#ifdef ENABLE_NLS
+    if (!str_isutf8 (_system_codepage))
+        bind_textdomain_codeset ("mc", _system_codepage);
+#endif
+
+    return ok;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+gboolean
+mc_args_show_info (void)
+{
+    if (mc_args__show_version)
+    {
+        show_version ();
+        return FALSE;
+    }
+
+    if (mc_args__show_datadirs)
+    {
+        printf ("%s (%s)\n", mc_global.sysconfig_dir, mc_global.share_data_dir);
+        return FALSE;
+    }
+
+    if (mc_args__show_datadirs_extended)
+    {
+        show_datadirs_extended ();
+        return FALSE;
+    }
+
+#ifdef ENABLE_CONFIGURE_ARGS
+    if (mc_args__show_configure_opts)
+    {
+        show_configure_options ();
+        return FALSE;
+    }
+#endif
+
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+gboolean
+mc_setup_by_args (int argc, char **argv, GError ** mcerror)
+{
+    char *tmp;
+
+    mc_return_val_if_error (mcerror, FALSE);
+
+    if (mc_args__force_colors)
+        mc_global.tty.disable_colors = FALSE;
+
+#ifdef ENABLE_SUBSHELL
+    if (mc_args__nouse_subshell)
+        mc_global.tty.use_subshell = FALSE;
+#endif /* ENABLE_SUBSHELL */
+
+#ifdef ENABLE_VFS_FTP
+    if (mc_args__netfs_logfile != NULL)
+    {
+        vfs_path_t *vpath;
+
+        vpath = vfs_path_from_str ("ftp://");
+        mc_setctl (vpath, VFS_SETCTL_LOGFILE, (void *) mc_args__netfs_logfile);
+        vfs_path_free (vpath, TRUE);
+    }
+#endif /* ENABLE_VFS_FTP */
+
+    tmp = (argc > 0) ? argv[1] : NULL;
+
+    switch (mc_global.mc_run_mode)
+    {
+    case MC_RUN_EDITOR:
+        mc_run_param0 = parse_mcedit_arguments (argc - 1, &argv[1]);
+        break;
+
+    case MC_RUN_VIEWER:
+        if (tmp == NULL)
+        {
+            mc_propagate_error (mcerror, 0, "%s\n", _("No arguments given to the viewer."));
+            return FALSE;
+        }
+
+        mc_run_param0 = g_strdup (tmp);
+        break;
+
+#ifdef USE_DIFF_VIEW
+    case MC_RUN_DIFFVIEWER:
+        if (argc < 3)
+        {
+            mc_propagate_error (mcerror, 0, "%s\n",
+                                _("Two files are required to envoke the diffviewer."));
+            return FALSE;
+        }
+        MC_FALLTHROUGH;
+#endif /* USE_DIFF_VIEW */
+
+    case MC_RUN_FULL:
+    default:
+        /* set the current dir and the other dir for filemanager,
+           or two files for diff viewer */
+        if (tmp != NULL)
+        {
+            mc_run_param0 = g_strdup (tmp);
+            tmp = (argc > 1) ? argv[2] : NULL;
+            if (tmp != NULL)
+                mc_run_param1 = g_strdup (tmp);
+        }
+        break;
+    }
+
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Free the mcedit_arg_t object.
+ *
+ * @param arg mcedit_arg_t object
+ */
+
+void
+mcedit_arg_free (mcedit_arg_t * arg)
+{
+    vfs_path_free (arg->file_vpath, TRUE);
+    g_free (arg);
+}
+
+/* --------------------------------------------------------------------------------------------- */