src/args.c

   1 /*
   2    Handle command line arguments.
   3
   4    Copyright (C) 2009-2024
   5    Free Software Foundation, Inc.
   6
   7    Written by:
   8    Slava Zanko <slavazanko@gmail.com>, 2009.
   9    Andrew Borodin <aborodin@vmail.ru>, 2011, 2012.
  10
  11    This file is part of the Midnight Commander.
  12
  13    The Midnight Commander is free software: you can redistribute it
  14    and/or modify it under the terms of the GNU General Public License as
  15    published by the Free Software Foundation, either version 3 of the License,
  16    or (at your option) any later version.
  17
  18    The Midnight Commander is distributed in the hope that it will be useful,
  19    but WITHOUT ANY WARRANTY; without even the implied warranty of
  20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21    GNU General Public License for more details.
  22
  23    You should have received a copy of the GNU General Public License
  24    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  25  */
  26
  27 #include <config.h>
  28 #include <stdlib.h>
  29 #include <stdio.h>
  30
  31 #include "lib/global.h"
  32 #include "lib/tty/tty.h"
  33 #include "lib/strutil.h"
  34 #include "lib/vfs/vfs.h"
  35 #include "lib/util.h"           /* x_basename() */
  36
  37 #include "src/textconf.h"
  38
  39 #ifdef USE_INTERNAL_EDIT
  40 #include "editor/edit.h"        /* edit_arg_t */
  41 #endif
  42
  43 #include "src/args.h"
  44
  45 /*** external variables **************************************************************************/
  46
  47 /*** global variables ****************************************************************************/
  48
  49 /* If true, assume we are running on an xterm terminal */
  50 gboolean mc_args__force_xterm = FALSE;
  51
  52 gboolean mc_args__nomouse = FALSE;
  53
  54 /* Force colors, only used by Slang */
  55 gboolean mc_args__force_colors = FALSE;
  56
  57 /* Don't load keymap from file and use default one */
  58 gboolean mc_args__nokeymap = FALSE;
  59
  60 char *mc_args__last_wd_file = NULL;
  61
  62 /* when enabled NETCODE, use following file as logfile */
  63 char *mc_args__netfs_logfile = NULL;
  64
  65 /* keymap file */
  66 char *mc_args__keymap_file = NULL;
  67
  68 void *mc_run_param0 = NULL;
  69 char *mc_run_param1 = NULL;
  70
  71 /*** file scope macro definitions ****************************************************************/
  72
  73 /*** file scope type declarations ****************************************************************/
  74
  75 /*** forward declarations (file scope functions) *************************************************/
  76
  77 static gboolean parse_mc_e_argument (const gchar * option_name, const gchar * value,
  78                                      gpointer data, GError ** mcerror);
  79 static gboolean parse_mc_v_argument (const gchar * option_name, const gchar * value,
  80                                      gpointer data, GError ** mcerror);
  81
  82 /*** file scope variables ************************************************************************/
  83
  84 /* If true, show version info and exit */
  85 static gboolean mc_args__show_version = FALSE;
  86
  87 static GOptionContext *context;
  88
  89 #ifdef ENABLE_SUBSHELL
  90 static gboolean mc_args__nouse_subshell = FALSE;
  91 #endif /* ENABLE_SUBSHELL */
  92 static gboolean mc_args__show_datadirs = FALSE;
  93 static gboolean mc_args__show_datadirs_extended = FALSE;
  94 #ifdef ENABLE_CONFIGURE_ARGS
  95 static gboolean mc_args__show_configure_opts = FALSE;
  96 #endif
  97
  98 static GOptionGroup *main_group;
  99
 100 static const GOptionEntry argument_main_table[] = {
 101     /* *INDENT-OFF* */
 102     /* generic options */
 103     {
 104      "version", 'V', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
 105      &mc_args__show_version,
 106      N_("Displays the current version"),
 107      NULL
 108     },
 109
 110     /* options for wrappers */
 111     {
 112      "datadir", 'f', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
 113      &mc_args__show_datadirs,
 114      N_("Print data directory"),
 115      NULL
 116     },
 117
 118     /* show extended information about used data directories */
 119     {
 120      "datadir-info", 'F', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
 121      &mc_args__show_datadirs_extended,
 122      N_("Print extended info about used data directories"),
 123      NULL
 124     },
 125
 126 #ifdef ENABLE_CONFIGURE_ARGS
 127     /* show configure options */
 128     {
 129      "configure-options", '\0', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
 130      &mc_args__show_configure_opts,
 131      N_("Print configure options"),
 132      NULL
 133     },
 134 #endif
 135
 136     {
 137      "printwd", 'P', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_STRING,
 138      &mc_args__last_wd_file,
 139      N_("Print last working directory to specified file"),
 140      N_("<file>")
 141     },
 142
 143 #ifdef ENABLE_SUBSHELL
 144     {
 145      "subshell", 'U', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
 146      &mc_global.tty.use_subshell,
 147      N_("Enables subshell support (default)"),
 148      NULL
 149     },
 150
 151     {
 152      "nosubshell", 'u', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
 153      &mc_args__nouse_subshell,
 154      N_("Disables subshell support"),
 155      NULL
 156     },
 157 #endif
 158
 159     /* debug options */
 160 #ifdef ENABLE_VFS_FTP
 161     {
 162      "ftplog", 'l', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_STRING,
 163      &mc_args__netfs_logfile,
 164      N_("Log ftp dialog to specified file"),
 165      N_("<file>")
 166     },
 167 #endif /* ENABLE_VFS_FTP */
 168
 169     {
 170      /* handle arguments manually */
 171      "view", 'v', G_OPTION_FLAG_IN_MAIN | G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK,
 172      (gpointer) parse_mc_v_argument,
 173      N_("Launches the file viewer on a file"),
 174      N_("<file>")
 175     },
 176
 177     {
 178      /* handle arguments manually */
 179      "edit", 'e', G_OPTION_FLAG_IN_MAIN | G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK,
 180      (gpointer) parse_mc_e_argument,
 181      N_("Edit files"),
 182      N_("<file> ...")
 183     },
 184
 185     G_OPTION_ENTRY_NULL
 186     /* *INDENT-ON* */
 187 };
 188
 189 static GOptionGroup *terminal_group;
 190 #define ARGS_TERM_OPTIONS 0
 191 static const GOptionEntry argument_terminal_table[] = {
 192     /* *INDENT-OFF* */
 193     /* terminal options */
 194     {
 195      "xterm", 'x', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 196      &mc_args__force_xterm,
 197      N_("Forces xterm features"),
 198      NULL
 199     },
 200
 201     {
 202      "no-x11", 'X', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 203      &mc_global.tty.disable_x11,
 204      N_("Disable X11 support"),
 205      NULL
 206     },
 207
 208     {
 209      "oldmouse", 'g', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 210      &mc_global.tty.old_mouse,
 211      N_("Tries to use an old highlight mouse tracking"),
 212      NULL
 213     },
 214
 215     {
 216      "nomouse", 'd', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 217      &mc_args__nomouse,
 218      N_("Disable mouse support in text version"),
 219      NULL
 220     },
 221
 222 #ifdef HAVE_SLANG
 223     {
 224      "termcap", 't', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 225      &SLtt_Try_Termcap,
 226      N_("Tries to use termcap instead of terminfo"),
 227      NULL
 228     },
 229 #endif
 230
 231     {
 232      "slow", 's', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 233      &mc_global.tty.slow_terminal,
 234      N_("To run on slow terminals"),
 235      NULL
 236     },
 237
 238     {
 239      "stickchars", 'a', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 240      &mc_global.tty.ugly_line_drawing,
 241      N_("Use stickchars to draw"),
 242      NULL
 243     },
 244
 245 #ifdef HAVE_SLANG
 246     {
 247      "resetsoft", 'k', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 248      &reset_hp_softkeys,
 249      N_("Resets soft keys on HP terminals"),
 250      NULL
 251     },
 252 #endif
 253
 254     {
 255      "keymap", 'K', ARGS_TERM_OPTIONS, G_OPTION_ARG_STRING,
 256      &mc_args__keymap_file,
 257      N_("Load definitions of key bindings from specified file"),
 258      N_("<file>")
 259     },
 260
 261     {
 262      "nokeymap", '\0', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 263      &mc_args__nokeymap,
 264      N_("Don't load definitions of key bindings from file, use defaults"),
 265      NULL
 266     },
 267
 268     G_OPTION_ENTRY_NULL
 269     /* *INDENT-ON* */
 270 };
 271
 272 #undef ARGS_TERM_OPTIONS
 273
 274 static GOptionGroup *color_group;
 275 #define ARGS_COLOR_OPTIONS 0
 276 /* #define ARGS_COLOR_OPTIONS G_OPTION_FLAG_IN_MAIN */
 277 static const GOptionEntry argument_color_table[] = {
 278     /* *INDENT-OFF* */
 279     /* color options */
 280     {
 281      "nocolor", 'b', ARGS_COLOR_OPTIONS, G_OPTION_ARG_NONE,
 282      &mc_global.tty.disable_colors,
 283      N_("Requests to run in black and white"),
 284      NULL
 285     },
 286
 287     {
 288      "color", 'c', ARGS_COLOR_OPTIONS, G_OPTION_ARG_NONE,
 289      &mc_args__force_colors,
 290      N_("Request to run in color mode"),
 291      NULL
 292     },
 293
 294     {
 295      "colors", 'C', ARGS_COLOR_OPTIONS, G_OPTION_ARG_STRING,
 296      &mc_global.tty.command_line_colors,
 297      N_("Specifies a color configuration"),
 298      N_("<string>")
 299     },
 300
 301     {
 302      "skin", 'S', ARGS_COLOR_OPTIONS, G_OPTION_ARG_STRING,
 303      &mc_global.tty.skin,
 304      N_("Show mc with specified skin"),
 305      N_("<string>")
 306     },
 307
 308     G_OPTION_ENTRY_NULL
 309     /* *INDENT-ON* */
 310 };
 311
 312 #undef ARGS_COLOR_OPTIONS
 313
 314 static gchar *mc_args__loc__colors_string = NULL;
 315 static gchar *mc_args__loc__footer_string = NULL;
 316 static gchar *mc_args__loc__header_string = NULL;
 317 static gchar *mc_args__loc__usage_string = NULL;
 318
 319 /* --------------------------------------------------------------------------------------------- */
 320 /*** file scope functions ************************************************************************/
 321 /* --------------------------------------------------------------------------------------------- */
 322
 323 static void
 324 mc_args_clean_temp_help_strings (void)
 325 {
 326     MC_PTR_FREE (mc_args__loc__colors_string);
 327     MC_PTR_FREE (mc_args__loc__footer_string);
 328     MC_PTR_FREE (mc_args__loc__header_string);
 329     MC_PTR_FREE (mc_args__loc__usage_string);
 330 }
 331
 332 /* --------------------------------------------------------------------------------------------- */
 333
 334 static GOptionGroup *
 335 mc_args_new_color_group (void)
 336 {
 337     /* *INDENT-OFF* */
 338     /* FIXME: to preserve translations, lines should be split. */
 339     mc_args__loc__colors_string = g_strdup_printf ("%s\n%s",
 340                                                    /* TRANSLATORS: don't translate keywords */
 341                                                    _("--colors KEYWORD={FORE},{BACK},{ATTR}:KEYWORD2=...\n\n"
 342                                                      "{FORE}, {BACK} and {ATTR} can be omitted, and the default will be used\n"
 343                                                      "\n Keywords:\n"
 344                                                      "   Global:       errors, disabled, reverse, gauge, header\n"
 345                                                      "                 input, inputmark, inputunchanged, commandlinemark\n"
 346                                                      "                 bbarhotkey, bbarbutton, statusbar\n"
 347                                                      "   File display: normal, selected, marked, markselect\n"
 348                                                      "   Dialog boxes: dnormal, dfocus, dhotnormal, dhotfocus, errdhotnormal,\n"
 349                                                      "                 errdhotfocus\n"
 350                                                      "   Menus:        menunormal, menuhot, menusel, menuhotsel, menuinactive\n"
 351                                                      "   Popup menus:  pmenunormal, pmenusel, pmenutitle\n"
 352                                                      "   Editor:       editnormal, editbold, editmarked, editwhitespace, editnonprintable,\n"
 353                                                      "                 editlinestate, editbg, editframe, editframeactive\n"
 354                                                      "                 editframedrag\n"
 355                                                      "   Viewer:       viewnormal,viewbold, viewunderline, viewselected\n"
 356                                                      "   Help:         helpnormal, helpitalic, helpbold, helplink, helpslink\n"),
 357                                                    /* TRANSLATORS: don't translate color names and attributes */
 358                                                    _("Standard Colors:\n"
 359                                                     "   black, gray, red, brightred, green, brightgreen, brown,\n"
 360                                                     "   yellow, blue, brightblue, magenta, brightmagenta, cyan,\n"
 361                                                     "   brightcyan, lightgray and white\n\n"
 362                                                     "Extended colors, when 256 colors are available:\n"
 363                                                     "   color16 to color255, or rgb000 to rgb555 and gray0 to gray23\n\n"
 364                                                     "Attributes:\n"
 365                                                     "   bold, italic, underline, reverse, blink; append more with '+'\n")
 366                                                     );
 367     /* *INDENT-ON* */
 368
 369     return g_option_group_new ("color", mc_args__loc__colors_string,
 370                                _("Color options"), NULL, NULL);
 371
 372 }
 373
 374 /* --------------------------------------------------------------------------------------------- */
 375
 376 static gchar *
 377 mc_args_add_usage_info (void)
 378 {
 379     gchar *s;
 380
 381     switch (mc_global.mc_run_mode)
 382     {
 383 #ifdef USE_INTERNAL_EDIT
 384     case MC_RUN_EDITOR:
 385         s = g_strdup_printf ("%s\n", _("[+lineno] file1[:lineno] [file2[:lineno]...]"));
 386         break;
 387 #endif /* USE_INTERNAL_EDIT */
 388     case MC_RUN_VIEWER:
 389         s = g_strdup_printf ("%s\n", _("file"));
 390         break;
 391 #ifdef USE_DIFF_VIEW
 392     case MC_RUN_DIFFVIEWER:
 393         s = g_strdup_printf ("%s\n", _("file1 file2"));
 394         break;
 395 #endif /* USE_DIFF_VIEW */
 396     case MC_RUN_FULL:
 397     default:
 398         s = g_strdup_printf ("%s\n", _("[this_dir] [other_panel_dir]"));
 399     }
 400
 401     mc_args__loc__usage_string = s;
 402
 403     return mc_args__loc__usage_string;
 404 }
 405
 406 /* --------------------------------------------------------------------------------------------- */
 407
 408 static void
 409 mc_args_add_extended_info_to_help (void)
 410 {
 411     mc_args__loc__footer_string = g_strdup_printf ("%s",
 412                                                    _
 413                                                    ("\n"
 414                                                     "Please send any bug reports (including the output of 'mc -V')\n"
 415                                                     "as tickets at www.midnight-commander.org\n"));
 416     mc_args__loc__header_string =
 417         g_strdup_printf (_("GNU Midnight Commander %s\n"), mc_global.mc_version);
 418
 419     g_option_context_set_description (context, mc_args__loc__footer_string);
 420     g_option_context_set_summary (context, mc_args__loc__header_string);
 421 }
 422
 423 /* --------------------------------------------------------------------------------------------- */
 424
 425 static GString *
 426 mc_args__convert_help_to_syscharset (const gchar *charset, const gchar *error_message_str,
 427                                      const gchar *help_str)
 428 {
 429     GString *buffer;
 430     GIConv conv;
 431     gchar *full_help_str;
 432
 433     buffer = g_string_new ("");
 434     conv = g_iconv_open (charset, "UTF-8");
 435     full_help_str = g_strdup_printf ("%s\n\n%s\n", error_message_str, help_str);
 436
 437     str_convert (conv, full_help_str, buffer);
 438
 439     g_free (full_help_str);
 440     g_iconv_close (conv);
 441
 442     return buffer;
 443 }
 444
 445 /* --------------------------------------------------------------------------------------------- */
 446
 447 static gboolean
 448 parse_mc_e_argument (const gchar *option_name, const gchar *value, gpointer data, GError **mcerror)
 449 {
 450     (void) option_name;
 451     (void) value;
 452     (void) data;
 453
 454     mc_return_val_if_error (mcerror, FALSE);
 455
 456     mc_global.mc_run_mode = MC_RUN_EDITOR;
 457
 458     return TRUE;
 459 }
 460
 461 /* --------------------------------------------------------------------------------------------- */
 462
 463 static gboolean
 464 parse_mc_v_argument (const gchar *option_name, const gchar *value, gpointer data, GError **mcerror)
 465 {
 466     (void) option_name;
 467     (void) value;
 468     (void) data;
 469
 470     mc_return_val_if_error (mcerror, FALSE);
 471
 472     mc_global.mc_run_mode = MC_RUN_VIEWER;
 473
 474     return TRUE;
 475 }
 476
 477 /* --------------------------------------------------------------------------------------------- */
 478
 479 #ifdef USE_INTERNAL_EDIT
 480 /**
 481  * Get list of filenames (and line numbers) from command line, when mc called as editor
 482  *
 483  * @param argc count of all arguments
 484  * @param argv array of strings, contains arguments
 485  * @return list of edit_arg_t objects
 486  */
 487
 488 static GList *
 489 parse_mcedit_arguments (int argc, char **argv)
 490 {
 491     GList *flist = NULL;
 492     int i;
 493     long first_line_number = -1;
 494
 495     for (i = 0; i < argc; i++)
 496     {
 497         char *tmp;
 498         char *end, *p;
 499         edit_arg_t *arg;
 500
 501         tmp = argv[i];
 502
 503         /*
 504          * First, try to get line number as +lineno.
 505          */
 506         if (*tmp == '+')
 507         {
 508             long lineno;
 509             char *error;
 510
 511             lineno = strtol (tmp + 1, &error, 10);
 512
 513             if (*error == '\0')
 514             {
 515                 /* this is line number */
 516                 first_line_number = lineno;
 517                 continue;
 518             }
 519             /* this is file name */
 520         }
 521
 522         /*
 523          * Check for filename:lineno, followed by an optional colon.
 524          * This format is used by many programs (especially compilers)
 525          * in error messages and warnings. It is supported so that
 526          * users can quickly copy and paste file locations.
 527          */
 528         end = tmp + strlen (tmp);
 529         p = end;
 530
 531         if (p > tmp && p[-1] == ':')
 532             p--;
 533         while (p > tmp && g_ascii_isdigit ((gchar) p[-1]))
 534             p--;
 535
 536         if (tmp < p && p < end && p[-1] == ':')
 537         {
 538             char *fname;
 539             vfs_path_t *tmp_vpath, *fname_vpath;
 540             struct stat st;
 541
 542             fname = g_strndup (tmp, p - 1 - tmp);
 543             tmp_vpath = vfs_path_from_str (tmp);
 544             fname_vpath = vfs_path_from_str (fname);
 545
 546             /*
 547              * Check that the file before the colon actually exists.
 548              * If it doesn't exist, create new file.
 549              */
 550             if (mc_stat (tmp_vpath, &st) == -1 && mc_stat (fname_vpath, &st) != -1)
 551             {
 552                 arg = edit_arg_vpath_new (fname_vpath, atoi (p));
 553                 vfs_path_free (tmp_vpath, TRUE);
 554             }
 555             else
 556             {
 557                 arg = edit_arg_vpath_new (tmp_vpath, 0);
 558                 vfs_path_free (fname_vpath, TRUE);
 559             }
 560
 561             g_free (fname);
 562         }
 563         else
 564             arg = edit_arg_new (tmp, 0);
 565
 566         flist = g_list_prepend (flist, arg);
 567     }
 568
 569     if (flist == NULL)
 570         flist = g_list_prepend (flist, edit_arg_new (NULL, 0));
 571     else if (first_line_number != -1)
 572     {
 573         /* overwrite line number for first file */
 574         GList *l;
 575
 576         l = g_list_last (flist);
 577         ((edit_arg_t *) l->data)->line_number = first_line_number;
 578     }
 579
 580     return flist;
 581 }
 582 #endif /* USE_INTERNAL_EDIT */
 583
 584 /* --------------------------------------------------------------------------------------------- */
 585 /*** public functions ****************************************************************************/
 586 /* --------------------------------------------------------------------------------------------- */
 587
 588 void
 589 mc_setup_run_mode (char **argv)
 590 {
 591     const char *base;
 592
 593     base = x_basename (argv[0]);
 594
 595     if (strncmp (base, "mcv", 3) == 0 || strcmp (base, "view") == 0)
 596     {
 597         /* mcv* or view is link to mc */
 598         mc_global.mc_run_mode = MC_RUN_VIEWER;
 599     }
 600 #ifdef USE_INTERNAL_EDIT
 601     else if (strncmp (base, "mce", 3) == 0 || strcmp (base, "vi") == 0)
 602     {
 603         /* mce* or vi is link to mc */
 604         mc_global.mc_run_mode = MC_RUN_EDITOR;
 605     }
 606 #endif
 607 #ifdef USE_DIFF_VIEW
 608     else if (strncmp (base, "mcd", 3) == 0 || strcmp (base, "diff") == 0)
 609     {
 610         /* mcd* or diff is link to mc */
 611         mc_global.mc_run_mode = MC_RUN_DIFFVIEWER;
 612     }
 613 #endif /* USE_DIFF_VIEW */
 614 }
 615
 616 /* --------------------------------------------------------------------------------------------- */
 617
 618 gboolean
 619 mc_args_parse (int *argc, char ***argv, const char *translation_domain, GError **mcerror)
 620 {
 621     const gchar *_system_codepage;
 622     gboolean ok = TRUE;
 623
 624     mc_return_val_if_error (mcerror, FALSE);
 625
 626     _system_codepage = str_detect_termencoding ();
 627
 628 #ifdef ENABLE_NLS
 629     if (!str_isutf8 (_system_codepage))
 630         bind_textdomain_codeset ("mc", "UTF-8");
 631 #endif
 632
 633     context = g_option_context_new (mc_args_add_usage_info ());
 634
 635     g_option_context_set_ignore_unknown_options (context, FALSE);
 636
 637     mc_args_add_extended_info_to_help ();
 638
 639     main_group = g_option_group_new ("main", _("Main options"), _("Main options"), NULL, NULL);
 640
 641     g_option_group_add_entries (main_group, argument_main_table);
 642     g_option_context_set_main_group (context, main_group);
 643     g_option_group_set_translation_domain (main_group, translation_domain);
 644
 645     terminal_group = g_option_group_new ("terminal", _("Terminal options"),
 646                                          _("Terminal options"), NULL, NULL);
 647
 648     g_option_group_add_entries (terminal_group, argument_terminal_table);
 649     g_option_context_add_group (context, terminal_group);
 650     g_option_group_set_translation_domain (terminal_group, translation_domain);
 651
 652     color_group = mc_args_new_color_group ();
 653
 654     g_option_group_add_entries (color_group, argument_color_table);
 655     g_option_context_add_group (context, color_group);
 656     g_option_group_set_translation_domain (color_group, translation_domain);
 657
 658     if (!g_option_context_parse (context, argc, argv, mcerror))
 659     {
 660         if (*mcerror == NULL)
 661             mc_propagate_error (mcerror, 0, "%s\n", _("Arguments parse error!"));
 662         else
 663         {
 664             gchar *help_str;
 665
 666             help_str = g_option_context_get_help (context, TRUE, NULL);
 667
 668             if (str_isutf8 (_system_codepage))
 669                 mc_replace_error (mcerror, (*mcerror)->code, "%s\n\n%s\n", (*mcerror)->message,
 670                                   help_str);
 671             else
 672             {
 673                 GString *full_help_str;
 674
 675                 full_help_str =
 676                     mc_args__convert_help_to_syscharset (_system_codepage, (*mcerror)->message,
 677                                                          help_str);
 678                 mc_replace_error (mcerror, (*mcerror)->code, "%s", full_help_str->str);
 679                 g_string_free (full_help_str, TRUE);
 680             }
 681             g_free (help_str);
 682         }
 683
 684         ok = FALSE;
 685     }
 686
 687     g_option_context_free (context);
 688     mc_args_clean_temp_help_strings ();
 689
 690 #ifdef ENABLE_NLS
 691     if (!str_isutf8 (_system_codepage))
 692         bind_textdomain_codeset ("mc", _system_codepage);
 693 #endif
 694
 695     return ok;
 696 }
 697
 698 /* --------------------------------------------------------------------------------------------- */
 699
 700 gboolean
 701 mc_args_show_info (void)
 702 {
 703     if (mc_args__show_version)
 704     {
 705         show_version ();
 706         return FALSE;
 707     }
 708
 709     if (mc_args__show_datadirs)
 710     {
 711         printf ("%s (%s)\n", mc_global.sysconfig_dir, mc_global.share_data_dir);
 712         return FALSE;
 713     }
 714
 715     if (mc_args__show_datadirs_extended)
 716     {
 717         show_datadirs_extended ();
 718         return FALSE;
 719     }
 720
 721 #ifdef ENABLE_CONFIGURE_ARGS
 722     if (mc_args__show_configure_opts)
 723     {
 724         show_configure_options ();
 725         return FALSE;
 726     }
 727 #endif
 728
 729     return TRUE;
 730 }
 731
 732 /* --------------------------------------------------------------------------------------------- */
 733
 734 gboolean
 735 mc_setup_by_args (int argc, char **argv, GError **mcerror)
 736 {
 737     char *tmp;
 738
 739     mc_return_val_if_error (mcerror, FALSE);
 740
 741     if (mc_args__force_colors)
 742         mc_global.tty.disable_colors = FALSE;
 743
 744 #ifdef ENABLE_SUBSHELL
 745     if (mc_args__nouse_subshell)
 746         mc_global.tty.use_subshell = FALSE;
 747 #endif /* ENABLE_SUBSHELL */
 748
 749 #ifdef ENABLE_VFS_FTP
 750     if (mc_args__netfs_logfile != NULL)
 751     {
 752         vfs_path_t *vpath;
 753
 754         vpath = vfs_path_from_str ("ftp://");
 755         mc_setctl (vpath, VFS_SETCTL_LOGFILE, (void *) mc_args__netfs_logfile);
 756         vfs_path_free (vpath, TRUE);
 757     }
 758 #endif /* ENABLE_VFS_FTP */
 759
 760     tmp = (argc > 0) ? argv[1] : NULL;
 761
 762     switch (mc_global.mc_run_mode)
 763     {
 764     case MC_RUN_EDITOR:
 765 #ifdef USE_INTERNAL_EDIT
 766         mc_run_param0 = parse_mcedit_arguments (argc - 1, &argv[1]);
 767         break;
 768 #else
 769         mc_propagate_error (mcerror, 0, "%s\n", _("MC is built without builtin editor."));
 770         return FALSE;
 771 #endif
 772
 773     case MC_RUN_VIEWER:
 774         if (tmp == NULL)
 775         {
 776             mc_propagate_error (mcerror, 0, "%s\n", _("No arguments given to the viewer."));
 777             return FALSE;
 778         }
 779
 780         mc_run_param0 = g_strdup (tmp);
 781         break;
 782
 783 #ifdef USE_DIFF_VIEW
 784     case MC_RUN_DIFFVIEWER:
 785         if (argc < 3)
 786         {
 787             mc_propagate_error (mcerror, 0, "%s\n",
 788                                 _("Two files are required to invoke the diffviewer."));
 789             return FALSE;
 790         }
 791         MC_FALLTHROUGH;
 792 #endif /* USE_DIFF_VIEW */
 793
 794     case MC_RUN_FULL:
 795     default:
 796         /* set the current dir and the other dir for filemanager,
 797            or two files for diff viewer */
 798         if (tmp != NULL)
 799         {
 800             mc_run_param0 = g_strdup (tmp);
 801             tmp = (argc > 1) ? argv[2] : NULL;
 802             if (tmp != NULL)
 803                 mc_run_param1 = g_strdup (tmp);
 804         }
 805         break;
 806     }
 807
 808     return TRUE;
 809 }
 810
 811 /* --------------------------------------------------------------------------------------------- */