src/args.c

   1 /*
   2    Handle command line arguments.
   3
   4    Copyright (C) 2009-2015
   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 #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 ** mcerror);
  86 static gboolean parse_mc_v_argument (const gchar * option_name, const gchar * value,
  87                                      gpointer data, GError ** mcerror);
  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     MC_PTR_FREE (mc_args__loc__colors_string);
 334     MC_PTR_FREE (mc_args__loc__footer_string);
 335     MC_PTR_FREE (mc_args__loc__header_string);
 336     MC_PTR_FREE (mc_args__loc__usage_string);
 337 }
 338
 339 /* --------------------------------------------------------------------------------------------- */
 340
 341 static GOptionGroup *
 342 mc_args_new_color_group (void)
 343 {
 344 /* *INDENT-OFF* */
 345     /* FIXME: to preserve translations, lines should be split. */
 346     mc_args__loc__colors_string = g_strdup_printf ("%s\n%s",
 347                                                    /* TRANSLATORS: don't translate keywords */
 348                                                    _("--colors KEYWORD={FORE},{BACK},{ATTR}:KEYWORD2=...\n\n"
 349                                                      "{FORE}, {BACK} and {ATTR} can be omitted, and the default will be used\n"
 350                                                      "\n Keywords:\n"
 351                                                      "   Global:       errors, disabled, reverse, gauge, header\n"
 352                                                      "                 input, inputmark, inputunchanged, commandlinemark\n"
 353                                                      "                 bbarhotkey, bbarbutton, statusbar\n"
 354                                                      "   File display: normal, selected, marked, markselect\n"
 355                                                      "   Dialog boxes: dnormal, dfocus, dhotnormal, dhotfocus, errdhotnormal,\n"
 356                                                      "                 errdhotfocus\n"
 357                                                      "   Menus:        menunormal, menuhot, menusel, menuhotsel, menuinactive\n"
 358                                                      "   Popup menus:  pmenunormal, pmenusel, pmenutitle\n"
 359                                                      "   Editor:       editnormal, editbold, editmarked, editwhitespace,\n"
 360                                                      "                 editlinestate, editbg, editframe, editframeactive\n"
 361                                                      "                 editframedrag\n"
 362                                                      "   Viewer:       viewnormal,viewbold, viewunderline, viewselected\n"
 363                                                      "   Help:         helpnormal, helpitalic, helpbold, helplink, helpslink\n"),
 364                                                    /* TRANSLATORS: don't translate color names and attributes */
 365                                                    _("Standard Colors:\n"
 366                                                     "   black, gray, red, brightred, green, brightgreen, brown,\n"
 367                                                     "   yellow, blue, brightblue, magenta, brightmagenta, cyan,\n"
 368                                                     "   brightcyan, lightgray and white\n\n"
 369                                                     "Extended colors, when 256 colors are available:\n"
 370                                                     "   color16 to color255, or rgb000 to rgb555 and gray0 to gray23\n\n"
 371                                                     "Attributes:\n"
 372                                                     "   bold, italic, underline, reverse, blink; append more with '+'\n")
 373                                                     );
 374 /* *INDENT-ON* */
 375
 376     return g_option_group_new ("color", mc_args__loc__colors_string,
 377                                _("Color options"), NULL, NULL);
 378
 379 }
 380
 381 /* --------------------------------------------------------------------------------------------- */
 382
 383 static gchar *
 384 mc_args_add_usage_info (void)
 385 {
 386     mc_args__loc__usage_string = g_strdup_printf ("[%s] %s\n %s - %s\n",
 387                                                   _("+number"),
 388                                                   _("[this_dir] [other_panel_dir]"),
 389                                                   _("+number"),
 390                                                   _
 391                                                   ("Set initial line number for the internal editor"));
 392     return mc_args__loc__usage_string;
 393 }
 394
 395 /* --------------------------------------------------------------------------------------------- */
 396
 397 static void
 398 mc_args_add_extended_info_to_help (void)
 399 {
 400     mc_args__loc__footer_string = g_strdup_printf ("%s",
 401                                                    _
 402                                                    ("\n"
 403                                                     "Please send any bug reports (including the output of 'mc -V')\n"
 404                                                     "as tickets at www.midnight-commander.org\n"));
 405     mc_args__loc__header_string = g_strdup_printf (_("GNU Midnight Commander %s\n"), VERSION);
 406
 407     g_option_context_set_description (context, mc_args__loc__footer_string);
 408     g_option_context_set_summary (context, mc_args__loc__header_string);
 409 }
 410
 411 /* --------------------------------------------------------------------------------------------- */
 412
 413 static gchar *
 414 mc_args__convert_help_to_syscharset (const gchar * charset, const gchar * error_message_str,
 415                                      const gchar * help_str)
 416 {
 417     GString *buffer;
 418     GIConv conv;
 419     gchar *full_help_str;
 420
 421     buffer = g_string_new ("");
 422     conv = g_iconv_open (charset, "UTF-8");
 423     full_help_str = g_strdup_printf ("%s\n\n%s\n", error_message_str, help_str);
 424
 425     str_convert (conv, full_help_str, buffer);
 426
 427     g_free (full_help_str);
 428     g_iconv_close (conv);
 429
 430     return g_string_free (buffer, FALSE);
 431 }
 432
 433 /* --------------------------------------------------------------------------------------------- */
 434
 435 static gboolean
 436 parse_mc_e_argument (const gchar * option_name, const gchar * value, gpointer data,
 437                      GError ** mcerror)
 438 {
 439     (void) option_name;
 440     (void) value;
 441     (void) data;
 442
 443     mc_return_val_if_error (mcerror, FALSE);
 444
 445     mc_global.mc_run_mode = MC_RUN_EDITOR;
 446
 447     return TRUE;
 448 }
 449
 450 /* --------------------------------------------------------------------------------------------- */
 451
 452 static gboolean
 453 parse_mc_v_argument (const gchar * option_name, const gchar * value, gpointer data,
 454                      GError ** mcerror)
 455 {
 456     (void) option_name;
 457     (void) data;
 458
 459     mc_return_val_if_error (mcerror, FALSE);
 460
 461     mc_global.mc_run_mode = MC_RUN_VIEWER;
 462     mc_run_param0 = g_strdup (value);
 463
 464     return TRUE;
 465 }
 466
 467 /* --------------------------------------------------------------------------------------------- */
 468 /**
 469  * Get list of filenames (and line numbers) from command line, when mc called as editor
 470  *
 471  * @param argc count of all arguments
 472  * @param argv array of strings, contains arguments
 473  * @return list of mcedit_arg_t objects
 474  */
 475
 476 static GList *
 477 parse_mcedit_arguments (int argc, char **argv)
 478 {
 479     GList *flist = NULL;
 480     int i;
 481     long first_line_number = -1;
 482
 483     for (i = 0; i < argc; i++)
 484     {
 485         char *tmp;
 486         char *end, *p;
 487         mcedit_arg_t *arg;
 488
 489         tmp = argv[i];
 490
 491         /*
 492          * First, try to get line number as +lineno.
 493          */
 494         if (*tmp == '+')
 495         {
 496             long lineno;
 497             char *error;
 498
 499             lineno = strtol (tmp + 1, &error, 10);
 500
 501             if (*error == '\0')
 502             {
 503                 /* this is line number */
 504                 first_line_number = lineno;
 505                 continue;
 506             }
 507             /* this is file name */
 508         }
 509
 510         /*
 511          * Check for filename:lineno, followed by an optional colon.
 512          * This format is used by many programs (especially compilers)
 513          * in error messages and warnings. It is supported so that
 514          * users can quickly copy and paste file locations.
 515          */
 516         end = tmp + strlen (tmp);
 517         p = end;
 518
 519         if (p > tmp && p[-1] == ':')
 520             p--;
 521         while (p > tmp && g_ascii_isdigit ((gchar) p[-1]))
 522             p--;
 523
 524         if (tmp < p && p < end && p[-1] == ':')
 525         {
 526             char *fname;
 527             vfs_path_t *tmp_vpath, *fname_vpath;
 528             struct stat st;
 529
 530             fname = g_strndup (tmp, p - 1 - tmp);
 531             tmp_vpath = vfs_path_from_str (tmp);
 532             fname_vpath = vfs_path_from_str (fname);
 533
 534             /*
 535              * Check that the file before the colon actually exists.
 536              * If it doesn't exist, create new file.
 537              */
 538             if (mc_stat (tmp_vpath, &st) == -1 && mc_stat (fname_vpath, &st) != -1)
 539             {
 540                 arg = mcedit_arg_vpath_new (fname_vpath, atoi (p));
 541                 vfs_path_free (tmp_vpath);
 542             }
 543             else
 544             {
 545                 arg = mcedit_arg_vpath_new (tmp_vpath, 0);
 546                 vfs_path_free (fname_vpath);
 547             }
 548
 549             g_free (fname);
 550         }
 551         else
 552             arg = mcedit_arg_new (tmp, 0);
 553
 554         flist = g_list_prepend (flist, arg);
 555     }
 556
 557     if (flist == NULL)
 558         flist = g_list_prepend (flist, mcedit_arg_new (NULL, 0));
 559     else if (first_line_number != -1)
 560     {
 561         /* overwrite line number for first file */
 562         GList *l;
 563
 564         l = g_list_last (flist);
 565         ((mcedit_arg_t *) l->data)->line_number = first_line_number;
 566     }
 567
 568     return flist;
 569 }
 570
 571 /* --------------------------------------------------------------------------------------------- */
 572 /*** public functions ****************************************************************************/
 573 /* --------------------------------------------------------------------------------------------- */
 574
 575 gboolean
 576 mc_args_parse (int *argc, char ***argv, const char *translation_domain, GError ** mcerror)
 577 {
 578     const gchar *_system_codepage;
 579     gboolean ok = TRUE;
 580
 581     mc_return_val_if_error (mcerror, FALSE);
 582
 583     _system_codepage = str_detect_termencoding ();
 584
 585 #ifdef ENABLE_NLS
 586     if (!str_isutf8 (_system_codepage))
 587         bind_textdomain_codeset ("mc", "UTF-8");
 588 #endif
 589
 590     context = g_option_context_new (mc_args_add_usage_info ());
 591
 592     g_option_context_set_ignore_unknown_options (context, FALSE);
 593
 594     mc_args_add_extended_info_to_help ();
 595
 596     main_group = g_option_group_new ("main", _("Main options"), _("Main options"), NULL, NULL);
 597
 598     g_option_group_add_entries (main_group, argument_main_table);
 599     g_option_context_set_main_group (context, main_group);
 600     g_option_group_set_translation_domain (main_group, translation_domain);
 601
 602     terminal_group = g_option_group_new ("terminal", _("Terminal options"),
 603                                          _("Terminal options"), NULL, NULL);
 604
 605     g_option_group_add_entries (terminal_group, argument_terminal_table);
 606     g_option_context_add_group (context, terminal_group);
 607     g_option_group_set_translation_domain (terminal_group, translation_domain);
 608
 609     color_group = mc_args_new_color_group ();
 610
 611     g_option_group_add_entries (color_group, argument_color_table);
 612     g_option_context_add_group (context, color_group);
 613     g_option_group_set_translation_domain (color_group, translation_domain);
 614
 615     if (!g_option_context_parse (context, argc, argv, mcerror))
 616     {
 617
 618         if (*mcerror == NULL)
 619             mc_propagate_error (mcerror, 0, "%s\n", _("Arguments parse error!"));
 620         else
 621         {
 622             gchar *help_str;
 623
 624             help_str = g_option_context_get_help (context, TRUE, NULL);
 625
 626             if (str_isutf8 (_system_codepage))
 627                 mc_replace_error (mcerror, (*mcerror)->code, "%s\n\n%s\n", (*mcerror)->message,
 628                                   help_str);
 629             else
 630             {
 631                 gchar *full_help_str;
 632
 633                 full_help_str =
 634                     mc_args__convert_help_to_syscharset (_system_codepage, (*mcerror)->message,
 635                                                          help_str);
 636                 mc_replace_error (mcerror, (*mcerror)->code, "%s", full_help_str);
 637                 g_free (full_help_str);
 638             }
 639             g_free (help_str);
 640         }
 641
 642         ok = FALSE;
 643     }
 644
 645     g_option_context_free (context);
 646     mc_args_clean_temp_help_strings ();
 647
 648 #ifdef ENABLE_NLS
 649     if (!str_isutf8 (_system_codepage))
 650         bind_textdomain_codeset ("mc", _system_codepage);
 651 #endif
 652
 653     return ok;
 654 }
 655
 656 /* --------------------------------------------------------------------------------------------- */
 657
 658 gboolean
 659 mc_args_show_info (void)
 660 {
 661     if (mc_args__show_version)
 662     {
 663         show_version ();
 664         return FALSE;
 665     }
 666
 667     if (mc_args__show_datadirs)
 668     {
 669         printf ("%s (%s)\n", mc_global.sysconfig_dir, mc_global.share_data_dir);
 670         return FALSE;
 671     }
 672
 673     if (mc_args__show_datadirs_extended)
 674     {
 675         show_datadirs_extended ();
 676         return FALSE;
 677     }
 678
 679     if (mc_args__show_configure_opts)
 680     {
 681         show_configure_options ();
 682         return FALSE;
 683     }
 684
 685     return TRUE;
 686 }
 687
 688 /* --------------------------------------------------------------------------------------------- */
 689
 690 gboolean
 691 mc_setup_by_args (int argc, char **argv, GError ** mcerror)
 692 {
 693     const char *base;
 694     char *tmp;
 695
 696     mc_return_val_if_error (mcerror, FALSE);
 697
 698     if (mc_args__force_colors)
 699         mc_global.tty.disable_colors = FALSE;
 700
 701 #ifdef ENABLE_SUBSHELL
 702     if (mc_args__nouse_subshell)
 703         mc_global.tty.use_subshell = FALSE;
 704 #endif /* ENABLE_SUBSHELL */
 705
 706 #ifdef ENABLE_VFS_SMB
 707     if (mc_args__debug_level != 0)
 708         smbfs_set_debug (mc_args__debug_level);
 709 #endif /* ENABLE_VFS_SMB */
 710
 711     if (mc_args__netfs_logfile != NULL)
 712     {
 713         vfs_path_t *vpath;
 714 #ifdef ENABLE_VFS_FTP
 715         vpath = vfs_path_from_str ("ftp://");
 716         mc_setctl (vpath, VFS_SETCTL_LOGFILE, (void *) mc_args__netfs_logfile);
 717         vfs_path_free (vpath);
 718 #endif /* ENABLE_VFS_FTP */
 719 #ifdef ENABLE_VFS_SMB
 720         vpath = vfs_path_from_str ("smb://");
 721         mc_setctl (vpath, VFS_SETCTL_LOGFILE, (void *) mc_args__netfs_logfile);
 722         vfs_path_free (vpath);
 723 #endif /* ENABLE_VFS_SMB */
 724         (void) vpath;
 725     }
 726
 727     base = x_basename (argv[0]);
 728     tmp = (argc > 0) ? argv[1] : NULL;
 729
 730     if (strncmp (base, "mce", 3) == 0 || strcmp (base, "vi") == 0)
 731     {
 732         /* mce* or vi is link to mc */
 733
 734         mc_run_param0 = parse_mcedit_arguments (argc - 1, &argv[1]);
 735         mc_global.mc_run_mode = MC_RUN_EDITOR;
 736     }
 737     else if (strncmp (base, "mcv", 3) == 0 || strcmp (base, "view") == 0)
 738     {
 739         /* mcv* or view is link to mc */
 740
 741         if (tmp != NULL)
 742             mc_run_param0 = g_strdup (tmp);
 743         else
 744         {
 745             mc_propagate_error (mcerror, 0, "%s\n", _("No arguments given to the viewer."));
 746             return FALSE;
 747         }
 748         mc_global.mc_run_mode = MC_RUN_VIEWER;
 749     }
 750 #ifdef USE_DIFF_VIEW
 751     else if (strncmp (base, "mcd", 3) == 0 || strcmp (base, "diff") == 0)
 752     {
 753         /* mcd* or diff is link to mc */
 754
 755         if (argc < 3)
 756         {
 757             mc_propagate_error (mcerror, 0, "%s\n",
 758                                 _("Two files are required to evoke the diffviewer."));
 759             return FALSE;
 760         }
 761
 762         if (tmp != NULL)
 763         {
 764             mc_run_param0 = g_strdup (tmp);
 765             tmp = (argc > 1) ? argv[2] : NULL;
 766             if (tmp != NULL)
 767                 mc_run_param1 = g_strdup (tmp);
 768             mc_global.mc_run_mode = MC_RUN_DIFFVIEWER;
 769         }
 770     }
 771 #endif /* USE_DIFF_VIEW */
 772     else
 773     {
 774         /* MC is run as mc */
 775
 776         switch (mc_global.mc_run_mode)
 777         {
 778         case MC_RUN_EDITOR:
 779             mc_run_param0 = parse_mcedit_arguments (argc - 1, &argv[1]);
 780             break;
 781
 782         case MC_RUN_VIEWER:
 783             /* mc_run_param0 is set up in parse_mc_v_argument() */
 784             break;
 785
 786         case MC_RUN_DIFFVIEWER:
 787             /* not implemented yet */
 788             break;
 789
 790         case MC_RUN_FULL:
 791         default:
 792             /* sets the current dir and the other dir */
 793             if (tmp != NULL)
 794             {
 795                 mc_run_param0 = g_strdup (tmp);
 796                 tmp = (argc > 1) ? argv[2] : NULL;
 797                 if (tmp != NULL)
 798                     mc_run_param1 = g_strdup (tmp);
 799             }
 800             mc_global.mc_run_mode = MC_RUN_FULL;
 801             break;
 802         }
 803     }
 804
 805     return TRUE;
 806 }
 807
 808 /* --------------------------------------------------------------------------------------------- */
 809 /**
 810  * Create mcedit_arg_t object from file name and the line number.
 811  *
 812  * @param file_name   file name
 813  * @param line_number line number. If value is 0, try to restore saved position.
 814  * @return mcedit_arg_t object
 815  */
 816
 817 mcedit_arg_t *
 818 mcedit_arg_new (const char *file_name, long line_number)
 819 {
 820     return mcedit_arg_vpath_new (vfs_path_from_str (file_name), line_number);
 821 }
 822
 823 /* --------------------------------------------------------------------------------------------- */
 824 /**
 825  * Create mcedit_arg_t object from vfs_path_t object and the line number.
 826  *
 827  * @param file_vpath  file path object
 828  * @param line_number line number. If value is 0, try to restore saved position.
 829  * @return mcedit_arg_t object
 830  */
 831
 832 mcedit_arg_t *
 833 mcedit_arg_vpath_new (vfs_path_t * file_vpath, long line_number)
 834 {
 835     mcedit_arg_t *arg;
 836
 837     arg = g_new (mcedit_arg_t, 1);
 838     arg->file_vpath = file_vpath;
 839     arg->line_number = line_number;
 840
 841     return arg;
 842 }
 843
 844 /* --------------------------------------------------------------------------------------------- */
 845 /**
 846  * Free the mcedit_arg_t object.
 847  *
 848  * @param arg mcedit_arg_t object
 849  */
 850
 851 void
 852 mcedit_arg_free (mcedit_arg_t * arg)
 853 {
 854     vfs_path_free (arg->file_vpath);
 855     g_free (arg);
 856 }
 857
 858 /* --------------------------------------------------------------------------------------------- */