// -*- c++ -*- // Generated by gtkmmproc -- DO NOT MODIFY! #ifndef _GLIBMM_OPTIONCONTEXT_H #define _GLIBMM_OPTIONCONTEXT_H /* $Id: optioncontext.hg,v 1.6 2005/01/10 17:42:17 murrayc Exp $ */ /* Copyright (C) 2004 The glibmm Development Team * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #ifndef DOXYGEN_SHOULD_SKIP_THIS extern "C" { typedef struct _GOptionContext GOptionContext; } #endif namespace Glib { /** Exception class for options. */ class OptionError : public Glib::Error { public: enum Code { UNKNOWN_OPTION, BAD_VALUE, FAILED }; OptionError(Code error_code, const Glib::ustring& error_message); explicit OptionError(GError* gobject); Code code() const; #ifndef DOXYGEN_SHOULD_SKIP_THIS private: #ifdef GLIBMM_EXCEPTIONS_ENABLED static void throw_func(GError* gobject); #else //When not using exceptions, we just pass the Exception object around without throwing it: static std::auto_ptr throw_func(GError* gobject); #endif //GLIBMM_EXCEPTIONS_ENABLED friend void wrap_init(); // uses throw_func() #endif }; /** An OptionContext defines which options are accepted by the commandline option parser. */ class OptionContext { public: #ifndef DOXYGEN_SHOULD_SKIP_THIS typedef OptionContext CppObjectType; typedef GOptionContext BaseObjectType; #endif /* DOXYGEN_SHOULD_SKIP_THIS */ private: public: /** Creates a new option context. * @param parameter_string A string which is displayed in the first line of --help output, after programname [OPTION...] */ explicit OptionContext(const Glib::ustring& parameter_string = Glib::ustring()); //Note that, unlike Glib::Wrap(), this would create a second C++ instance for the same C instance, //so it should be used carefully. For instance you could not access data in a derived class via this second instance. explicit OptionContext(GOptionContext* castitem, bool take_ownership = false); virtual ~OptionContext(); /** Enables or disables automatic generation of <option>--help</option> * output. By default, g_option_context_parse() recognizes * <option>--help</option>, <option>-?</option>, <option>--help-all</option> * and <option>--help-</option><replaceable>groupname</replaceable> and creates * suitable output to stdout. * * @newin2p6 * @param help_enabled true to enable <option>--help</option>, false to disable it. */ void set_help_enabled(bool help_enabled = true); /** Returns whether automatic <option>--help</option> generation * is turned on for @a context . See g_option_context_set_help_enabled(). * @return true if automatic help generation is turned on. * * @newin2p6. */ bool get_help_enabled() const; /** Sets whether to ignore unknown options or not. If an argument is * ignored, it is left in the @a argv array after parsing. By default, * g_option_context_parse() treats unknown options as error. * * This setting does not affect non-option arguments (i.e. arguments * which don't start with a dash). But note that GOption cannot reliably * determine whether a non-option belongs to a preceding unknown option. * * @newin2p6 * @param ignore_unknown true to ignore unknown options, false to produce * an error when unknown options are met. */ void set_ignore_unknown_options(bool ignore_unknown = true); /** Returns whether unknown options are ignored or not. See * g_option_context_set_ignore_unknown_options(). * @return true if unknown options are ignored. * * @newin2p6. */ bool get_ignore_unknown_options() const; /** Parses the command line arguments, recognizing options * which have been added to @a context . A side-effect of * calling this function is that g_set_prgname() will be * called. * * If the parsing is successful, any parsed arguments are * removed from the array and @a argc and @a argv are updated * accordingly. A '--' option is stripped from @a argv * unless there are unparsed options before and after it, * or some of the options after it start with '-'. In case * of an error, @a argc and @a argv are left unmodified. * * If automatic <option>--help</option> support is enabled * (see g_option_context_set_help_enabled()), and the * @a argv array contains one of the recognized help options, * this function will produce help output to stdout and * call exit (0). * @param argc A pointer to the number of command line arguments. * @param argv A pointer to the array of command line arguments. * @param error A return location for errors. * @return true if the parsing was successful, * false if an error occurred * * @newin2p6. */ #ifdef GLIBMM_EXCEPTIONS_ENABLED bool parse(int& argc, char**& argv); #else bool parse(int& argc, char**& argv, std::auto_ptr& error); #endif //GLIBMM_EXCEPTIONS_ENABLED //g_option_context_add_main_entries(), just creates a group internally, adds them to it, and does a set_main_group() //- a group without callbacks seems to do some simple default parsing. /** Adds an OptionGroup to the context, so that parsing with context will recognize the options in the group. * Note that the group will not be copied, so it should exist for as long as the context exists. * * @param group The group to add. */ void add_group(OptionGroup& group); /** Sets an OptionGroup as the main group of the context. This has the same effect as calling add_group(), the only * difference is that the options in the main group are treated differently when generating --help output. * Note that the group will not be copied, so it should exist for as long as the context exists. * * @param group The group to add. */ void set_main_group(OptionGroup& group); //We don't need this (hopefully), and the memory management would be really awkward. //OptionGroup& get_main_group(); //const OptionGroup& get_main_group() const; GOptionContext* gobj() { return gobject_; } const GOptionContext* gobj() const { return gobject_; } protected: GOptionContext* gobject_; bool has_ownership_; }; } // namespace Glib #endif /* _GLIBMM_OPTIONCONTEXT_H */