mc/src/args.c
Slava Zanko c2754de8aa Code indentation in src directory
Signed-off-by: Slava Zanko <slavazanko@gmail.com>
2010-11-24 10:27:46 +03:00

715 lines
22 KiB
C

/*
Handle command line arguments.
Copyright (C) 2009 The Free Software Foundation, Inc.
Written by:
Slava Zanko <slavazanko@gmail.com>, 2009.
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 2 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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
*/
#include <config.h>
#include <stdlib.h>
#include <stdio.h>
#include "lib/global.h"
#include "lib/tty/tty.h"
#include "lib/tty/color.h" /* command_line_colors */
#include "lib/tty/mouse.h"
#include "lib/strutil.h"
#include "lib/vfs/mc-vfs/vfs.h"
#ifdef ENABLE_VFS_SMB
#include "lib/vfs/mc-vfs/smbfs.h" /* smbfs_set_debugf() */
#endif
#include "src/main.h"
#include "src/textconf.h"
#include "src/subshell.h" /* use_subshell */
#include "src/args.h"
/*** external variables **************************************************************************/
/*** global variables ****************************************************************************/
/* If true, show version info and exit */
gboolean mc_args__show_version = FALSE;
/* If true, assume we are running on an xterm terminal */
gboolean mc_args__force_xterm = FALSE;
gboolean mc_args__nomouse = FALSE;
/* For slow terminals */
gboolean mc_args__slow_terminal = FALSE;
/* If true use +, -, | for line drawing */
gboolean mc_args__ugly_line_drawing = FALSE;
/* Set to force black and white display at program startup */
gboolean mc_args__disable_colors = FALSE;
/* Force colors, only used by Slang */
gboolean mc_args__force_colors = FALSE;
/* Line to start the editor on */
int mc_args__edit_start_line = 0;
/* Show in specified skin */
char *mc_args__skin = NULL;
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;
/* Debug level */
int mc_args__debug_level = 0;
/*** file scope macro definitions ****************************************************************/
/*** file scope type declarations ****************************************************************/
/*** file scope variables ************************************************************************/
/* forward declarations */
static gboolean parse_mc_e_argument (const gchar * option_name, const gchar * value,
gpointer data, GError ** error);
static gboolean parse_mc_v_argument (const gchar * option_name, const gchar * value,
gpointer data, GError ** error);
static GOptionContext *context;
static gboolean mc_args__nouse_subshell = FALSE;
static gboolean mc_args__show_datadirs = FALSE;
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
},
{
"printwd", 'P', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_STRING,
&mc_args__last_wd_file,
N_("Print last working directory to specified file"),
"<file>"
},
#ifdef HAVE_SUBSHELL_SUPPORT
{
"subshell", 'U', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
&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"),
"<file>"
},
#endif /* ENABLE_VFS_FTP */
#ifdef ENABLE_VFS_SMB
{
"debuglevel", 'D', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_INT,
&mc_args__debug_level,
N_("Set debug level"),
"<integer>"
},
#endif /* ENABLE_VFS_SMB */
/* single file operations */
{
"view", 'v', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_CALLBACK,
parse_mc_v_argument,
N_("Launches the file viewer on a file"),
"<file>"
},
{
"edit", 'e', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_CALLBACK,
parse_mc_e_argument,
N_("Edits one file"),
"<file>"},
{
NULL, '\0', 0, 0, NULL, NULL, NULL /* Complete struct initialization */
}
/* *INDENT-ON* */
};
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
},
{
"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_args__slow_terminal,
N_("To run on slow terminals"),
NULL
},
{
"stickchars", 'a', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
&mc_args__ugly_line_drawing,
N_("Use stickchars to draw"),
NULL
},
{
"resetsoft", 'k', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
&reset_hp_softkeys,
N_("Resets soft keys on HP terminals"),
NULL
},
{
"keymap", 'K', ARGS_TERM_OPTIONS, G_OPTION_ARG_STRING,
&mc_args__keymap_file,
N_("Load definitions of key bindings from specified file"),
"<file>"
},
{
NULL, '\0', 0, 0, NULL, NULL, NULL /* Complete struct initialization */
}
/* *INDENT-ON* */
};
#undef ARGS_TERM_OPTIONS
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_args__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,
&command_line_colors,
N_("Specifies a color configuration"),
"<string>"
},
{
"skin", 'S', ARGS_COLOR_OPTIONS, G_OPTION_ARG_STRING,
&mc_args__skin,
N_("Show mc with specified skin"),
"<string>"
},
{
NULL, '\0', 0, 0, NULL, NULL, NULL /* Complete struct initialization */
}
/* *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)
{
g_free (mc_args__loc__colors_string);
mc_args__loc__colors_string = NULL;
g_free (mc_args__loc__footer_string);
mc_args__loc__footer_string = NULL;
g_free (mc_args__loc__header_string);
mc_args__loc__header_string = NULL;
g_free (mc_args__loc__usage_string);
mc_args__loc__usage_string = NULL;
}
/* --------------------------------------------------------------------------------------------- */
static GOptionGroup *
mc_args_new_color_group (void)
{
/*
* FIXME: undocumented keywords: viewunderline, editnormal, editbold,
* and editmarked. To preserve translations, lines should be split.
*/
mc_args__loc__colors_string = g_strdup_printf ("%s%s",
/* TRANSLATORS: don't translate keywords and names of colors */
_("--colors KEYWORD={FORE},{BACK}\n\n"
"{FORE} and {BACK} can be omitted, and the default will be used\n"
"\n" "Keywords:\n"
" Global: errors, disabled, reverse, gauge, viewunderline\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"
" Editor: editnormal, editbold, editmarked, editwhitespace,\n"
" editlinestate\n"),
/* TRANSLATORS: don't translate keywords and names of colors */
_
(" Help: helpnormal, helpitalic, helpbold, helplink, helpslink\n"
"\n" "Colors:\n"
" black, gray, red, brightred, green, brightgreen, brown,\n"
" yellow, blue, brightblue, magenta, brightmagenta, cyan,\n"
" brightcyan, lightgray and white\n\n"));
return g_option_group_new ("color", mc_args__loc__colors_string,
_("Color options"), NULL, NULL);
}
/* --------------------------------------------------------------------------------------------- */
static gchar *
mc_args_add_usage_info (void)
{
mc_args__loc__usage_string = g_strdup_printf ("[%s] %s\n %s - %s\n",
_("+number"),
_("[this_dir] [other_panel_dir]"),
_("+number"),
_
("Set initial line number for the internal editor"));
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"), VERSION);
#if GLIB_CHECK_VERSION(2,12,0)
g_option_context_set_description (context, mc_args__loc__footer_string);
g_option_context_set_summary (context, mc_args__loc__header_string);
#endif
}
/* --------------------------------------------------------------------------------------------- */
static void
mc_setup_by_args (int argc, char *argv[])
{
const char *base;
char *tmp;
if (mc_args__nomouse)
use_mouse_p = MOUSE_DISABLED;
if (mc_args__netfs_logfile != NULL)
{
#ifdef ENABLE_VFS_FTP
mc_setctl ("/#ftp:", VFS_SETCTL_LOGFILE, (void *) mc_args__netfs_logfile);
#endif /* ENABLE_VFS_FTP */
#ifdef ENABLE_VFS_SMB
smbfs_set_debugf (mc_args__netfs_logfile);
#endif /* ENABLE_VFS_SMB */
}
#ifdef ENABLE_VFS_SMB
if (mc_args__debug_level != 0)
smbfs_set_debug (mc_args__debug_level);
#endif /* ENABLE_VFS_SMB */
base = x_basename (argv[0]);
tmp = (argc > 0) ? argv[1] : NULL;
if (strncmp (base, "mce", 3) == 0 || strcmp (base, "vi") == 0)
{
/* mce* or vi is link to mc */
mc_run_param0 = g_strdup ("");
if (tmp != NULL)
{
/*
* 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.
*/
char *end, *p;
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;
struct stat st;
fname = g_strndup (tmp, p - 1 - tmp);
/*
* Check that the file before the colon actually exists.
* If it doesn't exist, revert to the old behavior.
*/
if (mc_stat (tmp, &st) == -1 && mc_stat (fname, &st) != -1)
{
mc_run_param0 = fname;
mc_args__edit_start_line = atoi (p);
}
else
{
g_free (fname);
goto try_plus_filename;
}
}
else
{
try_plus_filename:
if (*tmp == '+' && g_ascii_isdigit ((gchar) tmp[1]))
{
int start_line;
start_line = atoi (tmp);
/*
* If start_line is zero, position the cursor at the
* beginning of the file as other editors (vi, nano)
*/
if (start_line == 0)
start_line++;
if (start_line > 0)
{
char *file;
file = (argc > 1) ? argv[2] : NULL;
if (file != NULL)
{
tmp = file;
mc_args__edit_start_line = start_line;
}
}
}
mc_run_param0 = g_strdup (tmp);
}
}
mc_run_mode = MC_RUN_EDITOR;
}
else if (strncmp (base, "mcv", 3) == 0 || strcmp (base, "view") == 0)
{
/* mcv* or view is link to mc */
if (tmp != NULL)
mc_run_param0 = g_strdup (tmp);
else
{
fprintf (stderr, "%s\n", _("No arguments given to the viewer."));
exit (EXIT_FAILURE);
}
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 */
if (argc < 3)
{
fprintf (stderr, "%s\n", _("Two files are required to evoke the diffviewer."));
exit (EXIT_FAILURE);
}
if (tmp != NULL)
{
mc_run_param0 = g_strdup (tmp);
tmp = (argc > 1) ? argv[2] : NULL;
if (tmp != NULL)
mc_run_param1 = g_strdup (tmp);
mc_run_mode = MC_RUN_DIFFVIEWER;
}
}
#endif /* USE_DIFF_VIEW */
else
{
/* MC is run as mc */
switch (mc_run_mode)
{
case MC_RUN_EDITOR:
case MC_RUN_VIEWER:
/* mc_run_param0 is set up in parse_mc_e_argument() and parse_mc_v_argument() */
break;
case MC_RUN_DIFFVIEWER:
/* not implemented yet */
break;
case MC_RUN_FULL:
default:
/* sets the current dir and the other dir */
if (tmp != NULL)
{
mc_run_param0 = g_strdup (tmp);
tmp = (argc > 1) ? argv[2] : NULL;
if (tmp != NULL)
mc_run_param1 = g_strdup (tmp);
}
mc_run_mode = MC_RUN_FULL;
break;
}
}
}
/* --------------------------------------------------------------------------------------------- */
static gboolean
mc_args_process (int argc, char *argv[])
{
if (mc_args__show_version)
{
show_version ();
return FALSE;
}
if (mc_args__show_datadirs)
{
printf ("%s (%s)\n", mc_home, mc_home_alt);
return FALSE;
}
if (mc_args__force_colors)
mc_args__disable_colors = FALSE;
#ifdef HAVE_SUBSHELL_SUPPORT
if (mc_args__nouse_subshell)
use_subshell = 0;
#endif /* HAVE_SUBSHELL_SUPPORT */
mc_setup_by_args (argc, argv);
return TRUE;
}
/* --------------------------------------------------------------------------------------------- */
static gchar *
mc_args__convert_help_to_syscharset (const gchar * charset, const gchar * error_message,
const gchar * help_str)
{
GString *buffer = g_string_new ("");
GIConv conv = g_iconv_open (charset, "UTF-8");
gchar *full_help_str = g_strdup_printf ("%s\n\n%s\n", error_message, 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 ** error)
{
(void) option_name;
(void) data;
(void) error;
mc_run_mode = MC_RUN_EDITOR;
mc_run_param0 = g_strdup (value);
return TRUE;
}
/* --------------------------------------------------------------------------------------------- */
static gboolean
parse_mc_v_argument (const gchar * option_name, const gchar * value, gpointer data, GError ** error)
{
(void) option_name;
(void) data;
(void) error;
mc_run_mode = MC_RUN_VIEWER;
mc_run_param0 = g_strdup (value);
return TRUE;
}
/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
gboolean
mc_args_handle (int argc, char **argv, const char *translation_domain)
{
GError *error = NULL;
const gchar *_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, &error))
{
if (error != NULL)
{
gchar *full_help_str;
gchar *help_str;
#if GLIB_CHECK_VERSION(2,14,0)
help_str = g_option_context_get_help (context, TRUE, NULL);
#else
help_str = g_strdup ("");
#endif
if (!str_isutf8 (_system_codepage))
full_help_str =
mc_args__convert_help_to_syscharset (_system_codepage, error->message,
help_str);
else
full_help_str = g_strdup_printf ("%s\n\n%s\n", error->message, help_str);
fprintf (stderr, "%s", full_help_str);
g_free (help_str);
g_free (full_help_str);
g_error_free (error);
}
g_option_context_free (context);
mc_args_clean_temp_help_strings ();
return 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 mc_args_process (argc, argv);
}
/* --------------------------------------------------------------------------------------------- */