src/args.c

   1 /*
   2    Handle command line arguments.
   3
   4    Copyright (C) 2009, 2010, 2011, 2012
   5    The 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 #ifdef ENABLE_VFS_SMB
  38 #include "src/vfs/smbfs/smbfs.h"        /* smbfs_set_debugf()  */
  39 #endif
  40
  41 #include "src/textconf.h"
  42
  43 #include "src/args.h"
  44
  45 /*** external variables **************************************************************************/
  46
  47 /*** global variables ****************************************************************************/
  48
  49 /* If true, show version info and exit */
  50 gboolean mc_args__show_version = FALSE;
  51
  52 /* If true, assume we are running on an xterm terminal */
  53 gboolean mc_args__force_xterm = FALSE;
  54
  55 gboolean mc_args__nomouse = FALSE;
  56
  57 /* Force colors, only used by Slang */
  58 gboolean mc_args__force_colors = FALSE;
  59
  60 /* Don't load keymap form file and use default one */
  61 gboolean mc_args__nokeymap = FALSE;
  62
  63 char *mc_args__last_wd_file = NULL;
  64
  65 /* when enabled NETCODE, use folowing file as logfile */
  66 char *mc_args__netfs_logfile = NULL;
  67
  68 /* keymap file */
  69 char *mc_args__keymap_file = NULL;
  70
  71 /* Debug level */
  72 int mc_args__debug_level = 0;
  73
  74 void *mc_run_param0 = NULL;
  75 char *mc_run_param1 = NULL;
  76
  77 /*** file scope macro definitions ****************************************************************/
  78
  79 /*** file scope type declarations ****************************************************************/
  80
  81 /*** file scope variables ************************************************************************/
  82
  83 /* forward declarations */
  84 static gboolean parse_mc_e_argument (const gchar * option_name, const gchar * value,
  85                                      gpointer data, GError ** error);
  86 static gboolean parse_mc_v_argument (const gchar * option_name, const gchar * value,
  87                                      gpointer data, GError ** error);
  88
  89 static GOptionContext *context;
  90
  91 #ifdef ENABLE_SUBSHELL
  92 static gboolean mc_args__nouse_subshell = FALSE;
  93 #endif /* ENABLE_SUBSHELL */
  94 static gboolean mc_args__show_datadirs = FALSE;
  95 static gboolean mc_args__show_datadirs_extended = FALSE;
  96 static gboolean mc_args__show_configure_opts = FALSE;
  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     /* show configure options */
 127     {
 128      "configure-options", '\0', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
 129      &mc_args__show_configure_opts,
 130      N_("Print configure options"),
 131      NULL
 132     },
 133
 134     {
 135      "printwd", 'P', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_STRING,
 136      &mc_args__last_wd_file,
 137      N_("Print last working directory to specified file"),
 138      "<file>"
 139     },
 140
 141 #ifdef ENABLE_SUBSHELL
 142     {
 143      "subshell", 'U', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
 144      &mc_global.tty.use_subshell,
 145      N_("Enables subshell support (default)"),
 146      NULL
 147     },
 148
 149     {
 150      "nosubshell", 'u', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_NONE,
 151      &mc_args__nouse_subshell,
 152      N_("Disables subshell support"),
 153      NULL
 154     },
 155 #endif
 156
 157     /* debug options */
 158 #ifdef ENABLE_VFS_FTP
 159     {
 160      "ftplog", 'l', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_STRING,
 161      &mc_args__netfs_logfile,
 162      N_("Log ftp dialog to specified file"),
 163      "<file>"
 164     },
 165 #endif /* ENABLE_VFS_FTP */
 166 #ifdef ENABLE_VFS_SMB
 167     {
 168      "debuglevel", 'D', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_INT,
 169      &mc_args__debug_level,
 170      N_("Set debug level"),
 171      "<integer>"
 172     },
 173 #endif /* ENABLE_VFS_SMB */
 174
 175     /* single file operations */
 176     {
 177      "view", 'v', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_CALLBACK,
 178      parse_mc_v_argument,
 179      N_("Launches the file viewer on a file"),
 180      "<file>"
 181     },
 182
 183     {
 184      "edit", 'e', G_OPTION_FLAG_IN_MAIN | G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK,
 185      parse_mc_e_argument,
 186      N_("Edit files"),
 187      "<file> ..." },
 188
 189     {
 190      NULL, '\0', 0, 0, NULL, NULL, NULL /* Complete struct initialization */
 191     }
 192     /* *INDENT-ON* */
 193 };
 194
 195 GOptionGroup *terminal_group;
 196 #define ARGS_TERM_OPTIONS 0
 197 static const GOptionEntry argument_terminal_table[] = {
 198     /* *INDENT-OFF* */
 199     /* terminal options */
 200     {
 201      "xterm", 'x', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 202      &mc_args__force_xterm,
 203      N_("Forces xterm features"),
 204      NULL
 205     },
 206
 207     {
 208      "no-x11", 'X', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 209      &mc_global.tty.disable_x11,
 210      N_("Disable X11 support"),
 211      NULL
 212     },
 213
 214     {
 215      "oldmouse", 'g', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 216      &mc_global.tty.old_mouse,
 217      N_("Tries to use an old highlight mouse tracking"),
 218      NULL
 219     },
 220
 221     {
 222      "nomouse", 'd', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 223      &mc_args__nomouse,
 224      N_("Disable mouse support in text version"),
 225      NULL
 226     },
 227
 228 #ifdef HAVE_SLANG
 229     {
 230      "termcap", 't', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 231      &SLtt_Try_Termcap,
 232      N_("Tries to use termcap instead of terminfo"),
 233      NULL
 234     },
 235 #endif
 236
 237     {
 238      "slow", 's', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 239      &mc_global.tty.slow_terminal,
 240      N_("To run on slow terminals"),
 241      NULL
 242     },
 243
 244     {
 245      "stickchars", 'a', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 246      &mc_global.tty.ugly_line_drawing,
 247      N_("Use stickchars to draw"),
 248      NULL
 249     },
 250
 251     {
 252      "resetsoft", 'k', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 253      &reset_hp_softkeys,
 254      N_("Resets soft keys on HP terminals"),
 255      NULL
 256     },
 257
 258     {
 259      "keymap", 'K', ARGS_TERM_OPTIONS, G_OPTION_ARG_STRING,
 260      &mc_args__keymap_file,
 261      N_("Load definitions of key bindings from specified file"),
 262      "<file>"
 263     },
 264
 265     {
 266      "nokeymap", '\0', ARGS_TERM_OPTIONS, G_OPTION_ARG_NONE,
 267      &mc_args__nokeymap,
 268      N_("Don't load definitions of key bindings from file, use defaults"),
 269      NULL
 270     },
 271
 272     {
 273      NULL, '\0', 0, 0, NULL, NULL, NULL /* Complete struct initialization */
 274     }
 275     /* *INDENT-ON* */
 276 };
 277
 278 #undef ARGS_TERM_OPTIONS
 279
 280 GOptionGroup *color_group;
 281 #define ARGS_COLOR_OPTIONS 0
 282 /* #define ARGS_COLOR_OPTIONS G_OPTION_FLAG_IN_MAIN */
 283 static const GOptionEntry argument_color_table[] = {
 284     /* *INDENT-OFF* */
 285     /* color options */
 286     {
 287      "nocolor", 'b', ARGS_COLOR_OPTIONS, G_OPTION_ARG_NONE,
 288      &mc_global.tty.disable_colors,
 289      N_("Requests to run in black and white"),
 290      NULL
 291     },
 292
 293     {
 294      "color", 'c', ARGS_COLOR_OPTIONS, G_OPTION_ARG_NONE,
 295      &mc_args__force_colors,
 296      N_("Request to run in color mode"),
 297      NULL
 298     },
 299
 300     {
 301      "colors", 'C', ARGS_COLOR_OPTIONS, G_OPTION_ARG_STRING,
 302      &mc_global.tty.command_line_colors,
 303      N_("Specifies a color configuration"),
 304      "<string>"
 305     },
 306
 307     {
 308      "skin", 'S', ARGS_COLOR_OPTIONS, G_OPTION_ARG_STRING,
 309      &mc_global.tty.skin,
 310      N_("Show mc with specified skin"),
 311      "<string>"
 312     },
 313
 314     {
 315      NULL, '\0', 0, 0, NULL, NULL, NULL /* Complete struct initialization */
 316     }
 317     /* *INDENT-ON* */
 318 };
 319
 320 #undef ARGS_COLOR_OPTIONS
 321
 322 static gchar *mc_args__loc__colors_string = NULL;
 323 static gchar *mc_args__loc__footer_string = NULL;
 324 static gchar *mc_args__loc__header_string = NULL;
 325 static gchar *mc_args__loc__usage_string = NULL;
 326
 327 /*** file scope functions ************************************************************************/
 328
 329 /* --------------------------------------------------------------------------------------------- */
 330 static void
 331 mc_args_clean_temp_help_strings (void)
 332 {
 333     g_free (mc_args__loc__colors_string);
 334     mc_args__loc__colors_string = NULL;
 335
 336     g_free (mc_args__loc__footer_string);
 337     mc_args__loc__footer_string = NULL;
 338
 339     g_free (mc_args__loc__header_string);
 340     mc_args__loc__header_string = NULL;
 341
 342     g_free (mc_args__loc__usage_string);
 343     mc_args__loc__usage_string = NULL;
 344 }
 345
 346 /* --------------------------------------------------------------------------------------------- */
 347
 348 static GOptionGroup *
 349 mc_args_new_color_group (void)
 350 {
 351 /* *INDENT-OFF* */
 352     /* FIXME: to preserve translations, lines should be split. */
 353     mc_args__loc__colors_string = g_strdup_printf ("%s\n%s",
 354                                                    /* TRANSLATORS: don't translate keywords */
 355                                                    _("--colors KEYWORD={FORE},{BACK},{ATTR}:KEYWORD2=...\n\n"
 356                                                      "{FORE}, {BACK} and {ATTR} can be omitted, and the default will be used\n"
 357                                                      "\n Keywords:\n"
 358                                                      "   Global:       errors, disabled, reverse, gauge, header\n"
 359                                                      "                 input, inputmark, inputunchanged, commandlinemark\n"
 360                                                      "                 bbarhotkey, bbarbutton, statusbar\n"
 361                                                      "   File display: normal, selected, marked, markselect\n"
 362                                                      "   Dialog boxes: dnormal, dfocus, dhotnormal, dhotfocus, errdhotnormal,\n"
 363                                                      "                 errdhotfocus\n"
 364                                                      "   Menus:        menunormal, menuhot, menusel, menuhotsel, menuinactive\n"
 365                                                      "   Popup menus:  pmenunormal, pmenusel, pmenutitle\n"
 366                                                      "   Editor:       editnormal, editbold, editmarked, editwhitespace,\n"
 367                                                      "                 editlinestate, editbg, editframe, editframeactive\n"
 368                                                      "                 editframedrag\n"
 369                                                      "   Viewer:       viewbold, viewunderline, viewselected\n"
 370                                                      "   Help:         helpnormal, helpitalic, helpbold, helplink, helpslink\n"),
 371                                                    /* TRANSLATORS: don't translate color names and attributes */
 372                                                    _("Standard Colors:\n"
 373                                                     "   black, gray, red, brightred, green, brightgreen, brown,\n"
 374                                                     "   yellow, blue, brightblue, magenta, brightmagenta, cyan,\n"
 375                                                     "   brightcyan, lightgray and white\n\n"
 376                                                     "Extended colors, when 256 colors are available:\n"
 377                                                     "   color16 to color255, or rgb000 to rgb555 and gray0 to gray23\n\n"
 378                                                     "Attributes:\n"
 379                                                     "   bold, underline, reverse, blink; append more with '+'\n")
 380                                                     );
 381 /* *INDENT-ON* */
 382
 383     return g_option_group_new ("color", mc_args__loc__colors_string,
 384                                _("Color options"), NULL, NULL);
 385
 386 }
 387
 388 /* --------------------------------------------------------------------------------------------- */
 389
 390 static gchar *
 391 mc_args_add_usage_info (void)
 392 {
 393     mc_args__loc__usage_string = g_strdup_printf ("[%s] %s\n %s - %s\n",
 394                                                   _("+number"),
 395                                                   _("[this_dir] [other_panel_dir]"),
 396                                                   _("+number"),
 397                                                   _
 398                                                   ("Set initial line number for the internal editor"));
 399     return mc_args__loc__usage_string;
 400 }
 401
 402 /* --------------------------------------------------------------------------------------------- */
 403
 404 static void
 405 mc_args_add_extended_info_to_help (void)
 406 {
 407     mc_args__loc__footer_string = g_strdup_printf ("%s",
 408                                                    _
 409                                                    ("\n"
 410                                                     "Please send any bug reports (including the output of `mc -V')\n"
 411                                                     "as tickets at www.midnight-commander.org\n"));
 412     mc_args__loc__header_string = g_strdup_printf (_("GNU Midnight Commander %s\n"), VERSION);
 413
 414 #if GLIB_CHECK_VERSION(2,12,0)
 415     g_option_context_set_description (context, mc_args__loc__footer_string);
 416     g_option_context_set_summary (context, mc_args__loc__header_string);
 417 #endif
 418 }
 419
 420 /* --------------------------------------------------------------------------------------------- */
 421
 422 static gchar *
 423 mc_args__convert_help_to_syscharset (const gchar * charset, const gchar * error_message,
 424                                      const gchar * help_str)
 425 {
 426     GString *buffer;
 427     GIConv conv;
 428     gchar *full_help_str;
 429
 430     buffer = g_string_new ("");
 431     conv = g_iconv_open (charset, "UTF-8");
 432     full_help_str = g_strdup_printf ("%s\n\n%s\n", error_message, help_str);
 433
 434     str_convert (conv, full_help_str, buffer);
 435
 436     g_free (full_help_str);
 437     g_iconv_close (conv);
 438
 439     return g_string_free (buffer, FALSE);
 440 }
 441
 442 /* --------------------------------------------------------------------------------------------- */
 443
 444 static gboolean
 445 parse_mc_e_argument (const gchar * option_name, const gchar * value, gpointer data, GError ** error)
 446 {
 447     (void) option_name;
 448     (void) value;
 449     (void) data;
 450     (void) error;
 451
 452     mc_global.mc_run_mode = MC_RUN_EDITOR;
 453
 454     return TRUE;
 455 }
 456
 457 /* --------------------------------------------------------------------------------------------- */
 458
 459 static gboolean
 460 parse_mc_v_argument (const gchar * option_name, const gchar * value, gpointer data, GError ** error)
 461 {
 462     (void) option_name;
 463     (void) data;
 464     (void) error;
 465
 466     mc_global.mc_run_mode = MC_RUN_VIEWER;
 467     mc_run_param0 = g_strdup (value);
 468
 469     return TRUE;
 470 }
 471
 472 /* --------------------------------------------------------------------------------------------- */
 473 /**
 474  * Get list of filenames (and line numbers) from command line, when mc called as editor
 475  *
 476  * @param argc count of all arguments
 477  * @param argv array of strings, contains arguments
 478  * @return list of mcedit_arg_t objects
 479  */
 480
 481 static GList *
 482 parse_mcedit_arguments (int argc, char **argv)
 483 {
 484     GList *flist = NULL;
 485     int i;
 486     long first_line_number = -1;
 487
 488     for (i = 0; i < argc; i++)
 489     {
 490         char *tmp;
 491         char *end, *p;
 492         mcedit_arg_t *arg;
 493
 494         tmp = argv[i];
 495
 496         /*
 497          * First, try to get line number as +lineno.
 498          */
 499         if (*tmp == '+')
 500         {
 501             long lineno;
 502             char *error;
 503
 504             lineno = strtol (tmp + 1, &error, 10);
 505
 506             if (*error == '\0')
 507             {
 508                 /* this is line number */
 509                 first_line_number = lineno;
 510                 continue;
 511             }
 512             /* this is file name */
 513         }
 514
 515         /*
 516          * Check for filename:lineno, followed by an optional colon.
 517          * This format is used by many programs (especially compilers)
 518          * in error messages and warnings. It is supported so that
 519          * users can quickly copy and paste file locations.
 520          */
 521         end = tmp + strlen (tmp);
 522         p = end;
 523
 524         if (p > tmp && p[-1] == ':')
 525             p--;
 526         while (p > tmp && g_ascii_isdigit ((gchar) p[-1]))
 527             p--;
 528
 529         if (tmp < p && p < end && p[-1] == ':')
 530         {
 531             char *fname;
 532             vfs_path_t *tmp_vpath, *fname_vpath;
 533             struct stat st;
 534
 535             fname = g_strndup (tmp, p - 1 - tmp);
 536             tmp_vpath = vfs_path_from_str (tmp);
 537             fname_vpath = vfs_path_from_str (fname);
 538
 539             /*
 540              * Check that the file before the colon actually exists.
 541              * If it doesn't exist, create new file.
 542              */
 543             if (mc_stat (tmp_vpath, &st) == -1 && mc_stat (fname_vpath, &st) != -1)
 544             {
 545                 arg = mcedit_arg_vpath_new (fname_vpath, atoi (p));
 546                 vfs_path_free (tmp_vpath);
 547             }
 548             else
 549             {
 550                 arg = mcedit_arg_vpath_new (tmp_vpath, 0);
 551                 vfs_path_free (fname_vpath);
 552             }
 553
 554             g_free (fname);
 555         }
 556         else
 557             arg = mcedit_arg_new (tmp, 0);
 558
 559         flist = g_list_prepend (flist, arg);
 560     }
 561
 562     if (flist == NULL)
 563         flist = g_list_prepend (flist, mcedit_arg_new (NULL, 0));
 564     else if (first_line_number != -1)
 565     {
 566         /* overwrite line number for first file */
 567         GList *l;
 568
 569         l = g_list_last (flist);
 570         ((mcedit_arg_t *) l->data)->line_number = first_line_number;
 571     }
 572
 573     return flist;
 574 }
 575
 576 /* --------------------------------------------------------------------------------------------- */
 577 /*** public functions ****************************************************************************/
 578 /* --------------------------------------------------------------------------------------------- */
 579
 580 gboolean
 581 mc_args_parse (int *argc, char ***argv, const char *translation_domain, GError ** error)
 582 {
 583     const gchar *_system_codepage;
 584     gboolean ok = TRUE;
 585
 586     _system_codepage = str_detect_termencoding ();
 587
 588 #ifdef ENABLE_NLS
 589     if (!str_isutf8 (_system_codepage))
 590         bind_textdomain_codeset ("mc", "UTF-8");
 591 #endif
 592
 593     context = g_option_context_new (mc_args_add_usage_info ());
 594
 595     g_option_context_set_ignore_unknown_options (context, FALSE);
 596
 597     mc_args_add_extended_info_to_help ();
 598
 599     main_group = g_option_group_new ("main", _("Main options"), _("Main options"), NULL, NULL);
 600
 601     g_option_group_add_entries (main_group, argument_main_table);
 602     g_option_context_set_main_group (context, main_group);
 603     g_option_group_set_translation_domain (main_group, translation_domain);
 604
 605     terminal_group = g_option_group_new ("terminal", _("Terminal options"),
 606                                          _("Terminal options"), NULL, NULL);
 607
 608     g_option_group_add_entries (terminal_group, argument_terminal_table);
 609     g_option_context_add_group (context, terminal_group);
 610     g_option_group_set_translation_domain (terminal_group, translation_domain);
 611
 612     color_group = mc_args_new_color_group ();
 613
 614     g_option_group_add_entries (color_group, argument_color_table);
 615     g_option_context_add_group (context, color_group);
 616     g_option_group_set_translation_domain (color_group, translation_domain);
 617
 618     if (!g_option_context_parse (context, argc, argv, error))
 619     {
 620         GError *error2 = NULL;
 621
 622         if (*error == NULL)
 623             *error = g_error_new (MC_ERROR, 0, "%s\n", _("Arguments parse error!"));
 624         else
 625         {
 626             gchar *help_str;
 627
 628 #if GLIB_CHECK_VERSION(2,14,0)
 629             help_str = g_option_context_get_help (context, TRUE, NULL);
 630 #else
 631             help_str = g_strdup ("");
 632 #endif
 633             if (str_isutf8 (_system_codepage))
 634                 error2 = g_error_new ((*error)->domain, (*error)->code, "%s\n\n%s\n",
 635                                       (*error)->message, help_str);
 636             else
 637             {
 638                 gchar *full_help_str;
 639
 640                 full_help_str =
 641                     mc_args__convert_help_to_syscharset (_system_codepage, (*error)->message,
 642                                                          help_str);
 643                 error2 = g_error_new ((*error)->domain, (*error)->code, "%s", full_help_str);
 644                 g_free (full_help_str);
 645             }
 646
 647             g_free (help_str);
 648             g_error_free (*error);
 649             *error = error2;
 650         }
 651
 652         ok = FALSE;
 653     }
 654
 655     g_option_context_free (context);
 656     mc_args_clean_temp_help_strings ();
 657
 658 #ifdef ENABLE_NLS
 659     if (!str_isutf8 (_system_codepage))
 660         bind_textdomain_codeset ("mc", _system_codepage);
 661 #endif
 662
 663     return ok;
 664 }
 665
 666 /* --------------------------------------------------------------------------------------------- */
 667
 668 gboolean
 669 mc_args_show_info (void)
 670 {
 671     if (mc_args__show_version)
 672     {
 673         show_version ();
 674         return FALSE;
 675     }
 676
 677     if (mc_args__show_datadirs)
 678     {
 679         printf ("%s (%s)\n", mc_global.sysconfig_dir, mc_global.share_data_dir);
 680         return FALSE;
 681     }
 682
 683     if (mc_args__show_datadirs_extended)
 684     {
 685         show_datadirs_extended ();
 686         return FALSE;
 687     }
 688
 689     if (mc_args__show_configure_opts)
 690     {
 691         show_configure_options ();
 692         return FALSE;
 693     }
 694
 695     return TRUE;
 696 }
 697
 698 /* --------------------------------------------------------------------------------------------- */
 699
 700 gboolean
 701 mc_setup_by_args (int argc, char **argv, GError ** error)
 702 {
 703     const char *base;
 704     char *tmp;
 705
 706     if (mc_args__force_colors)
 707         mc_global.tty.disable_colors = FALSE;
 708
 709 #ifdef ENABLE_SUBSHELL
 710     if (mc_args__nouse_subshell)
 711         mc_global.tty.use_subshell = FALSE;
 712 #endif /* ENABLE_SUBSHELL */
 713
 714 #ifdef ENABLE_VFS_SMB
 715     if (mc_args__debug_level != 0)
 716         smbfs_set_debug (mc_args__debug_level);
 717 #endif /* ENABLE_VFS_SMB */
 718
 719     if (mc_args__netfs_logfile != NULL)
 720     {
 721         vfs_path_t *vpath;
 722 #ifdef ENABLE_VFS_FTP
 723         vpath = vfs_path_from_str ("ftp://");
 724         mc_setctl (vpath, VFS_SETCTL_LOGFILE, (void *) mc_args__netfs_logfile);
 725         vfs_path_free (vpath);
 726 #endif /* ENABLE_VFS_FTP */
 727 #ifdef ENABLE_VFS_SMB
 728         vpath = vfs_path_from_str ("smb://");
 729         mc_setctl (vpath, VFS_SETCTL_LOGFILE, (void *) mc_args__netfs_logfile);
 730         vfs_path_free (vpath);
 731 #endif /* ENABLE_VFS_SMB */
 732         (void) vpath;
 733     }
 734
 735     base = x_basename (argv[0]);
 736     tmp = (argc > 0) ? argv[1] : NULL;
 737
 738     if (strncmp (base, "mce", 3) == 0 || strcmp (base, "vi") == 0)
 739     {
 740         /* mce* or vi is link to mc */
 741
 742         mc_run_param0 = parse_mcedit_arguments (argc - 1, &argv[1]);
 743         mc_global.mc_run_mode = MC_RUN_EDITOR;
 744     }
 745     else if (strncmp (base, "mcv", 3) == 0 || strcmp (base, "view") == 0)
 746     {
 747         /* mcv* or view is link to mc */
 748
 749         if (tmp != NULL)
 750             mc_run_param0 = g_strdup (tmp);
 751         else
 752         {
 753             *error = g_error_new (MC_ERROR, 0, "%s\n", _("No arguments given to the viewer."));
 754             return FALSE;
 755         }
 756         mc_global.mc_run_mode = MC_RUN_VIEWER;
 757     }
 758 #ifdef USE_DIFF_VIEW
 759     else if (strncmp (base, "mcd", 3) == 0 || strcmp (base, "diff") == 0)
 760     {
 761         /* mcd* or diff is link to mc */
 762
 763         if (argc < 3)
 764         {
 765             *error = g_error_new (MC_ERROR, 0, "%s\n",
 766                                   _("Two files are required to evoke the diffviewer."));
 767             return FALSE;
 768         }
 769
 770         if (tmp != NULL)
 771         {
 772             mc_run_param0 = g_strdup (tmp);
 773             tmp = (argc > 1) ? argv[2] : NULL;
 774             if (tmp != NULL)
 775                 mc_run_param1 = g_strdup (tmp);
 776             mc_global.mc_run_mode = MC_RUN_DIFFVIEWER;
 777         }
 778     }
 779 #endif /* USE_DIFF_VIEW */
 780     else
 781     {
 782         /* MC is run as mc */
 783
 784         switch (mc_global.mc_run_mode)
 785         {
 786         case MC_RUN_EDITOR:
 787             mc_run_param0 = parse_mcedit_arguments (argc - 1, &argv[1]);
 788             break;
 789
 790         case MC_RUN_VIEWER:
 791             /* mc_run_param0 is set up in parse_mc_v_argument() */
 792             break;
 793
 794         case MC_RUN_DIFFVIEWER:
 795             /* not implemented yet */
 796             break;
 797
 798         case MC_RUN_FULL:
 799         default:
 800             /* sets the current dir and the other dir */
 801             if (tmp != NULL)
 802             {
 803                 mc_run_param0 = g_strdup (tmp);
 804                 tmp = (argc > 1) ? argv[2] : NULL;
 805                 if (tmp != NULL)
 806                     mc_run_param1 = g_strdup (tmp);
 807             }
 808             mc_global.mc_run_mode = MC_RUN_FULL;
 809             break;
 810         }
 811     }
 812
 813     return TRUE;
 814 }
 815
 816 /* --------------------------------------------------------------------------------------------- */
 817 /**
 818  * Create mcedit_arg_t object from file name and the line number.
 819  *
 820  * @param file_name   file name
 821  * @param line_number line number. If value is 0, try to restore saved position.
 822  * @return mcedit_arg_t object
 823  */
 824
 825 mcedit_arg_t *
 826 mcedit_arg_new (const char *file_name, long line_number)
 827 {
 828     return mcedit_arg_vpath_new (vfs_path_from_str (file_name), line_number);
 829 }
 830
 831 /* --------------------------------------------------------------------------------------------- */
 832 /**
 833  * Create mcedit_arg_t object from vfs_path_t object and the line number.
 834  *
 835  * @param file_vpath  file path object
 836  * @param line_number line number. If value is 0, try to restore saved position.
 837  * @return mcedit_arg_t object
 838  */
 839
 840 mcedit_arg_t *
 841 mcedit_arg_vpath_new (vfs_path_t * file_vpath, long line_number)
 842 {
 843     mcedit_arg_t *arg;
 844
 845     arg = g_new (mcedit_arg_t, 1);
 846     arg->file_vpath = file_vpath;
 847     arg->line_number = line_number;
 848
 849     return arg;
 850 }
 851
 852 /* --------------------------------------------------------------------------------------------- */
 853 /**
 854  * Free the mcedit_arg_t object.
 855  *
 856  * @param arg mcedit_arg_t object
 857  */
 858
 859 void
 860 mcedit_arg_free (mcedit_arg_t * arg)
 861 {
 862     vfs_path_free (arg->file_vpath);
 863     g_free (arg);
 864 }
 865
 866 /* --------------------------------------------------------------------------------------------- */