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      1 /* goption.h - Option parser
      2  *
      3  *  Copyright (C) 2004  Anders Carlsson <andersca (at) gnome.org>
      4  *
      5  * This library is free software; you can redistribute it and/or
      6  * modify it under the terms of the GNU Library General Public
      7  * License as published by the Free Software Foundation; either
      8  * version 2 of the License, or (at your option) any later version.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
     13  * Library General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Library General Public
     16  * License along with this library; if not, write to the
     17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
     18  * Boston, MA 02111-1307, USA.
     19  */
     20 
     21 #if defined(G_DISABLE_SINGLE_INCLUDES) && !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
     22 #error "Only <glib.h> can be included directly."
     23 #endif
     24 
     25 #ifndef __G_OPTION_H__
     26 #define __G_OPTION_H__
     27 
     28 #include <glib/gerror.h>
     29 #include <glib/gquark.h>
     30 
     31 G_BEGIN_DECLS
     32 
     33 typedef struct _GOptionContext GOptionContext;
     34 typedef struct _GOptionGroup   GOptionGroup;
     35 typedef struct _GOptionEntry   GOptionEntry;
     36 
     37 typedef enum
     38 {
     39   G_OPTION_FLAG_HIDDEN		= 1 << 0,
     40   G_OPTION_FLAG_IN_MAIN		= 1 << 1,
     41   G_OPTION_FLAG_REVERSE		= 1 << 2,
     42   G_OPTION_FLAG_NO_ARG		= 1 << 3,
     43   G_OPTION_FLAG_FILENAME	= 1 << 4,
     44   G_OPTION_FLAG_OPTIONAL_ARG    = 1 << 5,
     45   G_OPTION_FLAG_NOALIAS	        = 1 << 6
     46 } GOptionFlags;
     47 
     48 typedef enum
     49 {
     50   G_OPTION_ARG_NONE,
     51   G_OPTION_ARG_STRING,
     52   G_OPTION_ARG_INT,
     53   G_OPTION_ARG_CALLBACK,
     54   G_OPTION_ARG_FILENAME,
     55   G_OPTION_ARG_STRING_ARRAY,
     56   G_OPTION_ARG_FILENAME_ARRAY,
     57   G_OPTION_ARG_DOUBLE,
     58   G_OPTION_ARG_INT64
     59 } GOptionArg;
     60 
     61 typedef gboolean (*GOptionArgFunc) (const gchar    *option_name,
     62 				    const gchar    *value,
     63 				    gpointer        data,
     64 				    GError        **error);
     65 
     66 typedef gboolean (*GOptionParseFunc) (GOptionContext *context,
     67 				      GOptionGroup   *group,
     68 				      gpointer	      data,
     69 				      GError        **error);
     70 
     71 typedef void (*GOptionErrorFunc) (GOptionContext *context,
     72 				  GOptionGroup   *group,
     73 				  gpointer        data,
     74 				  GError        **error);
     75 
     76 #define G_OPTION_ERROR (g_option_error_quark ())
     77 
     78 typedef enum
     79 {
     80   G_OPTION_ERROR_UNKNOWN_OPTION,
     81   G_OPTION_ERROR_BAD_VALUE,
     82   G_OPTION_ERROR_FAILED
     83 } GOptionError;
     84 
     85 GQuark g_option_error_quark (void);
     86 
     87 
     88 struct _GOptionEntry
     89 {
     90   const gchar *long_name;
     91   gchar        short_name;
     92   gint         flags;
     93 
     94   GOptionArg   arg;
     95   gpointer     arg_data;
     96 
     97   const gchar *description;
     98   const gchar *arg_description;
     99 };
    100 
    101 #define G_OPTION_REMAINING ""
    102 
    103 GOptionContext *g_option_context_new              (const gchar         *parameter_string);
    104 void            g_option_context_set_summary      (GOptionContext      *context,
    105                                                    const gchar         *summary);
    106 G_CONST_RETURN gchar *g_option_context_get_summary (GOptionContext     *context);
    107 void            g_option_context_set_description  (GOptionContext      *context,
    108                                                    const gchar         *description);
    109 G_CONST_RETURN gchar *g_option_context_get_description (GOptionContext     *context);
    110 void            g_option_context_free             (GOptionContext      *context);
    111 void		g_option_context_set_help_enabled (GOptionContext      *context,
    112 						   gboolean		help_enabled);
    113 gboolean	g_option_context_get_help_enabled (GOptionContext      *context);
    114 void		g_option_context_set_ignore_unknown_options (GOptionContext *context,
    115 							     gboolean	     ignore_unknown);
    116 gboolean        g_option_context_get_ignore_unknown_options (GOptionContext *context);
    117 
    118 void            g_option_context_add_main_entries (GOptionContext      *context,
    119 						   const GOptionEntry  *entries,
    120 						   const gchar         *translation_domain);
    121 gboolean        g_option_context_parse            (GOptionContext      *context,
    122 						   gint                *argc,
    123 						   gchar             ***argv,
    124 						   GError             **error);
    125 void            g_option_context_set_translate_func (GOptionContext     *context,
    126 						     GTranslateFunc      func,
    127 						     gpointer            data,
    128 						     GDestroyNotify      destroy_notify);
    129 void            g_option_context_set_translation_domain (GOptionContext  *context,
    130 							 const gchar     *domain);
    131 
    132 void            g_option_context_add_group      (GOptionContext *context,
    133 						 GOptionGroup   *group);
    134 void          g_option_context_set_main_group (GOptionContext *context,
    135 					       GOptionGroup   *group);
    136 GOptionGroup *g_option_context_get_main_group (GOptionContext *context);
    137 gchar        *g_option_context_get_help       (GOptionContext *context,
    138                                                gboolean        main_help,
    139                                                GOptionGroup   *group);
    140 
    141 GOptionGroup *g_option_group_new                    (const gchar        *name,
    142 						     const gchar        *description,
    143 						     const gchar        *help_description,
    144 						     gpointer            user_data,
    145 						     GDestroyNotify      destroy);
    146 void	      g_option_group_set_parse_hooks	    (GOptionGroup       *group,
    147 						     GOptionParseFunc    pre_parse_func,
    148 						     GOptionParseFunc	 post_parse_func);
    149 void	      g_option_group_set_error_hook	    (GOptionGroup       *group,
    150 						     GOptionErrorFunc	 error_func);
    151 void          g_option_group_free                   (GOptionGroup       *group);
    152 void          g_option_group_add_entries            (GOptionGroup       *group,
    153 						     const GOptionEntry *entries);
    154 void          g_option_group_set_translate_func     (GOptionGroup       *group,
    155 						     GTranslateFunc      func,
    156 						     gpointer            data,
    157 						     GDestroyNotify      destroy_notify);
    158 void          g_option_group_set_translation_domain (GOptionGroup       *group,
    159 						     const gchar        *domain);
    160 
    161 G_END_DECLS
    162 
    163 #endif /* __G_OPTION_H__ */
    164