LeoArg - Command line parser - LeoArg.hh Source File

00001 #ifndef LeoArg_hh
00002 #define LeoArg_hh
00003 
00004 #include <list>
00005 #include <string>
00006 
00008 
00012 class LeoArg 
00013 {
00014  public:
00015   typedef list<std::string>ArgList;  
00016   typedef list<std::string>::iterator ArgListIt; 
00017   
00018   struct Option 
00019   {
00020     std::string long_option;  
00021     std::string short_option; 
00022     ArgList     arglist;      
00023     bool        bool_value;   
00024     int         int_num;      
00025     double      double_num;   
00026     std::string str;          
00027     bool        flag;         
00028     
00029     Option( std::string long_option, std::string short_option );
00030   };
00031   
00032   typedef std::list<Option>OptionList; 
00033   typedef OptionList::iterator OptionListIt; 
00034   
00035   struct InvalidOption 
00036   {
00037     Option option;     
00038     std::string err;   
00039     InvalidOption( Option &o, std::string e ) : option( o ), err( e ){}
00040   };
00041   
00042   struct InvalidSetting 
00043   {
00044     std::string err;   
00045     InvalidSetting( std::string e ) : err( e ){}
00046   };
00047   
00048   struct Setting 
00049   {
00050     int argc; 
00051     char **argv;
00052     std::string long_option_switch;  
00053     std::string short_option_switch; 
00054     mutable OptionList option_list;          
00055     bool sos;                        
00056 
00057     Setting( int argc, char **argv, std::string long_option_switch, std::string short_option_switch )
00058       : argc( argc ), argv( argv ), long_option_switch( long_option_switch ), short_option_switch( short_option_switch )
00059     {}
00060     
00061     Setting()
00062       : argc(0), argv(0)
00063     {}
00064     
00066     void add( const Option& option ) { option_list.push_back( option ); }
00067 
00069     /*** if you want to set varios short options and its easyer to set one short option string.
00070          eg.: 
00071          the options: -s -p -q  
00072          the sort option string can be: -spq 
00073          
00074          \Warning only one character short options are possible
00075          \Warning the short option string doesn't looks like the short option of an option
00076          \Warning the option can only be a boolean option
00077     */
00078     void short_option_string( bool short_os ) { sos = short_os; }
00079     bool short_option_string() const { return sos; } 
00080   };
00081   
00082  private:
00083   Setting setting; 
00084   
00085  public:
00086   LeoArg( int argc, char **argv, std::string long_option_switch = "--", std::string short_option_switch = "-" );
00087   LeoArg( Setting& setting ); 
00088   
00090   void short_option_string( bool short_os ) { setting.short_option_string(short_os); }  
00091 
00093   bool short_option_string() const { return setting.short_option_string(); } 
00094   
00095   Setting get_setting() const { return setting; } 
00096   
00097   bool has_parameters() const { return setting.argc > 1; } 
00098   bool get_option( Option& option );                    
00099   
00101 
00104   bool get_first( std::string& ret_value ) const;
00105   
00107 
00110   bool get_first( ArgList& arglist ) const;
00111   
00113 
00116   bool get_last( std::string & ret_value ) const;
00117   
00119 
00122   bool get_last( ArgList& arglist ) const;
00123   
00124   std::string get_prog_name() const { return std::string(setting.argv[0]); }
00125 
00127   void clear_cache() { setting.option_list.clear(); }
00128  private:
00129   bool parse_option( Option& option ) const;
00130   void correct_option( Option& option ) const;
00131   void correct_setting();
00132   bool find_option( Option& option ) const; 
00133   bool is_in_sos( const Option& option ) const; 
00134   int has_sos() const; 
00135 };
00136 
00137 
00138 extern "C" {
00140   /*** For autoconf check add this line to your configure.in file:
00141        AC_CHECK_LIB(LeoArg, leoarg, echo -n;, echo not found ;exit, -lstdc++)
00142   */
00143   char leoarg();
00144 
00145   /*** For autoconf check add this line to your configure.in file:
00146        AC_CHECK_LIB(LeoArg, leoarg_version_2_2, echo "LeoArg >= 2.2 (yes)", \
00147        echo "LeoArg >= 2.2 (no)"; exit, -lstdc++ )
00148   */
00149   char leoarg_version_2_2();
00150 }
00151 
00152 #endif