misc/options.c

   1 /*
   2  * Option parsing
   3  *
   4  * Copyright 2000 Alexandre Julliard
   5  */
   6
   7 #include "config.h"
   8 #include <string.h>
   9
  10 #include "winbase.h"
  11 #include "main.h"
  12 #include "options.h"
  13 #include "version.h"
  14 #include "debugtools.h"
  15
  16 struct option
  17 {
  18     const char *longname;
  19     char        shortname;
  20     int         has_arg;
  21     void      (*func)( const char *arg );
  22     const char *usage;
  23 };
  24
  25 /* Most Windows C/C++ compilers use something like this to */
  26 /* access argc and argv globally: */
  27 int _ARGC;
  28 char **_ARGV;
  29
  30 static void do_config( const char *arg );
  31 static void do_desktop( const char *arg );
  32 static void do_display( const char *arg );
  33 static void do_dll( const char *arg );
  34 static void do_help( const char *arg );
  35 static void do_managed( const char *arg );
  36 static void do_synchronous( const char *arg );
  37 static void do_version( const char *arg );
  38
  39 static const struct option option_table[] =
  40 {
  41     { "config",       0, 1, do_config,
  42       "--config name    Specify config file to use" },
  43     { "debugmsg",     0, 1, MAIN_ParseDebugOptions,
  44       "--debugmsg name  Turn debugging-messages on or off" },
  45     { "desktop",      0, 1, do_desktop,
  46       "--desktop geom   Use a desktop window of the given geometry" },
  47     { "display",      0, 1, do_display,
  48       "--display name   Use the specified display" },
  49     { "dll",          0, 1, do_dll,
  50       "--dll name       Enable or disable built-in DLLs" },
  51     { "dosver",       0, 1, VERSION_ParseDosVersion,
  52       "--dosver x.xx    DOS version to imitate (e.g. 6.22). Only valid with --winver win31" },
  53     { "help",       'h', 0, do_help,
  54       "--help,-h        Show this help message" },
  55     { "language",     0, 1, MAIN_ParseLanguageOption,
  56       "--language xx    Set the language (one of Br,Ca,Cs,Cy,Da,De,En,Eo,Es,Fi,Fr,Ga,Gd,Gv\n"
  57       "                    Hu,It,Ja,Ko,Kw,Nl,No,Pl,Pt,Sk,Sv,Ru,Wa)" },
  58     { "managed",      0, 0, do_managed,
  59       "--managed        Allow the window manager to manage created windows" },
  60     { "synchronous",  0, 0, do_synchronous,
  61       "--synchronous    Turn on synchronous display mode" },
  62     { "version",    'v', 0, do_version,
  63       "--version,-v     Display the Wine version" },
  64     { "winver",       0, 1, VERSION_ParseWinVersion,
  65       "--winver         Version to imitate (one of win31,win95,nt351,nt40)" },
  66     { NULL, }  /* terminator */
  67 };
  68
  69
  70 static void do_help( const char *arg )
  71 {
  72     OPTIONS_Usage();
  73 }
  74
  75 static void do_version( const char *arg )
  76 {
  77     MESSAGE( "%s\n", WINE_RELEASE_INFO );
  78     ExitProcess(0);
  79 }
  80
  81 static void do_synchronous( const char *arg )
  82 {
  83     Options.synchronous = TRUE;
  84 }
  85
  86 static void do_desktop( const char *arg )
  87 {
  88     Options.desktopGeometry = strdup( arg );
  89 }
  90
  91 static void do_display( const char *arg )
  92 {
  93     Options.display = strdup( arg );
  94 }
  95
  96 static void do_dll( const char *arg )
  97 {
  98     if (Options.dllFlags)
  99     {
 100         /* don't overwrite previous value. Should we
 101          * automatically add the ',' between multiple DLLs ?
 102          */
 103         MESSAGE("Only one -dll flag is allowed. Use ',' between multiple DLLs\n");
 104         ExitProcess(1);
 105     }
 106     Options.dllFlags = strdup( arg );
 107 }
 108
 109 static void do_managed( const char *arg )
 110 {
 111     Options.managed = TRUE;
 112 }
 113
 114 static void do_config( const char *arg )
 115 {
 116     Options.configFileName = strdup( arg );
 117 }
 118
 119 static inline void remove_options( int *argc, char *argv[], int pos, int count )
 120 {
 121     while ((argv[pos] = argv[pos+count])) pos++;
 122     *argc -= count;
 123 }
 124
 125 /***********************************************************************
 126  *              OPTIONS_Usage
 127  */
 128 void OPTIONS_Usage(void)
 129 {
 130     const struct option *opt;
 131     MESSAGE( "Usage: %s [options] \"program_name [arguments]\"\n\n", argv0 );
 132     MESSAGE( "Options:\n" );
 133     for (opt = option_table; opt->longname; opt++) MESSAGE( "   %s\n", opt->usage );
 134     ExitProcess(0);
 135 }
 136
 137 /***********************************************************************
 138  *              OPTIONS_ParseOptions
 139  */
 140 void OPTIONS_ParseOptions( int argc, char *argv[] )
 141 {
 142     const struct option *opt;
 143     int i;
 144
 145     for (i = 1; argv[i]; i++)
 146     {
 147         char *p = argv[i];
 148         if (*p++ != '-') continue;  /* not an option */
 149         if (*p && !p[1]) /* short name */
 150         {
 151             if (*p == '-') break; /* "--" option */
 152             for (opt = option_table; opt->longname; opt++) if (opt->shortname == *p) break;
 153         }
 154         else  /* long name */
 155         {
 156             if (*p == '-') p++;
 157             /* check for the long name */
 158             for (opt = option_table; opt->longname; opt++)
 159                 if (!strcmp( p, opt->longname )) break;
 160         }
 161         if (!opt->longname) continue;
 162
 163         if (opt->has_arg && argv[i+1])
 164         {
 165             opt->func( argv[i+1] );
 166             remove_options( &argc, argv, i, 2 );
 167         }
 168         else
 169         {
 170             opt->func( "" );
 171             remove_options( &argc, argv, i, 1 );
 172         }
 173         i--;
 174     }
 175
 176     /* check if any option remains */
 177     for (i = 1; argv[i]; i++)
 178     {
 179         if (!strcmp( argv[i], "--" ))
 180         {
 181             remove_options( &argc, argv, i, 1 );
 182             break;
 183         }
 184         if (argv[i][0] == '-')
 185         {
 186             MESSAGE( "Unknown option '%s'\n", argv[i] );
 187             OPTIONS_Usage();
 188         }
 189     }
 190     Options.argc = argc;
 191     Options.argv = argv;
 192     _ARGC = argc;
 193     _ARGV = argv;
 194 }