Changes in lemon/arg_parser.h [463:88ed40ad0d4f:915:c2ff0a365245] in lemon
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lemon/arg_parser.h
r463 r915 35 35 namespace lemon { 36 36 37 ///Exception used by ArgParser 38 class ArgParserException : public Exception { 39 public: 40 enum Reason { 41 HELP, /// <tt>--help</tt> option was given 42 UNKNOWN_OPT, /// Unknown option was given 43 INVALID_OPT /// Invalid combination of options 44 }; 45 46 private: 47 Reason _reason; 48 49 public: 50 ///Constructor 51 ArgParserException(Reason r) throw() : _reason(r) {} 52 ///Virtual destructor 53 virtual ~ArgParserException() throw() {} 54 ///A short description of the exception 55 virtual const char* what() const throw() { 56 switch(_reason) 57 { 58 case HELP: 59 return "lemon::ArgParseException: ask for help"; 60 break; 61 case UNKNOWN_OPT: 62 return "lemon::ArgParseException: unknown option"; 63 break; 64 case INVALID_OPT: 65 return "lemon::ArgParseException: invalid combination of options"; 66 break; 67 } 68 return ""; 69 } 70 ///Return the reason for the failure 71 Reason reason() const {return _reason; } 72 }; 73 74 37 75 ///Command line arguments parser 38 76 … … 104 142 std::string _command_name; 105 143 106 144 107 145 private: 108 146 //Bind a function to an option. … … 116 154 const std::string &help, 117 155 void (*func)(void *),void *data); 156 157 bool _exit_on_problems; 158 159 void _terminate(ArgParserException::Reason reason) const; 118 160 119 161 public: … … 381 423 const std::vector<std::string> &files() const { return _file_args; } 382 424 425 ///Throw instead of exit in case of problems 426 void throwOnProblems() 427 { 428 _exit_on_problems=false; 429 } 383 430 }; 384 431 }
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