| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/cmdline.h |
| 3 | // Purpose: wxCmdLineParser and related classes for parsing the command |
| 4 | // line options |
| 5 | // Author: Vadim Zeitlin |
| 6 | // Modified by: |
| 7 | // Created: 04.01.00 |
| 8 | // RCS-ID: $Id$ |
| 9 | // Copyright: (c) 2000 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> |
| 10 | // Licence: wxWindows license |
| 11 | /////////////////////////////////////////////////////////////////////////////// |
| 12 | |
| 13 | #ifndef _WX_CMDLINE_H_ |
| 14 | #define _WX_CMDLINE_H_ |
| 15 | |
| 16 | #ifdef __GNUG__ |
| 17 | #pragma interface "cmdline.h" |
| 18 | #endif |
| 19 | |
| 20 | #include "wx/string.h" |
| 21 | |
| 22 | class WXDLLEXPORT wxDateTime; |
| 23 | |
| 24 | // ---------------------------------------------------------------------------- |
| 25 | // constants |
| 26 | // ---------------------------------------------------------------------------- |
| 27 | |
| 28 | // by default, options are optional (sic) and each call to AddParam() allows |
| 29 | // one more parameter - this may be changed by giving non-default flags to it |
| 30 | enum |
| 31 | { |
| 32 | wxCMD_LINE_OPTION_MANDATORY = 0x01, // this option must be given |
| 33 | wxCMD_LINE_PARAM_OPTIONAL = 0x02, // the parameter may be omitted |
| 34 | wxCMD_LINE_PARAM_MULTIPLE = 0x04, // the parameter may be repeated |
| 35 | wxCMD_LINE_OPTION_HELP = 0x08, // this option is a help request |
| 36 | wxCMD_LINE_NEEDS_SEPARATOR = 0x10 // must have sep before the value |
| 37 | }; |
| 38 | |
| 39 | // an option value or parameter may be a string (the most common case), a |
| 40 | // number or a date |
| 41 | enum wxCmdLineParamType |
| 42 | { |
| 43 | wxCMD_LINE_VAL_STRING, // should be 0 (default) |
| 44 | wxCMD_LINE_VAL_NUMBER, |
| 45 | wxCMD_LINE_VAL_DATE, |
| 46 | wxCMD_LINE_VAL_NONE |
| 47 | }; |
| 48 | |
| 49 | // for constructing the cmd line description using Init() |
| 50 | enum wxCmdLineEntryType |
| 51 | { |
| 52 | wxCMD_LINE_SWITCH, |
| 53 | wxCMD_LINE_OPTION, |
| 54 | wxCMD_LINE_PARAM, |
| 55 | wxCMD_LINE_NONE // to terminate the list |
| 56 | }; |
| 57 | |
| 58 | // ---------------------------------------------------------------------------- |
| 59 | // wxCmdLineEntryDesc is a description of one command line |
| 60 | // switch/option/parameter |
| 61 | // ---------------------------------------------------------------------------- |
| 62 | |
| 63 | struct wxCmdLineEntryDesc |
| 64 | { |
| 65 | wxCmdLineEntryType kind; |
| 66 | const wxChar *shortName; |
| 67 | const wxChar *longName; |
| 68 | const wxChar *description; |
| 69 | wxCmdLineParamType type; |
| 70 | int flags; |
| 71 | }; |
| 72 | |
| 73 | // ---------------------------------------------------------------------------- |
| 74 | // wxCmdLineParser is a class for parsing command line. |
| 75 | // |
| 76 | // It has the following features: |
| 77 | // |
| 78 | // 1. distinguishes options, switches and parameters; allows option grouping |
| 79 | // 2. allows both short and long options |
| 80 | // 3. automatically generates the usage message from the cmd line description |
| 81 | // 4. does type checks on the options values (number, date, ...) |
| 82 | // |
| 83 | // To use it you should: |
| 84 | // |
| 85 | // 1. construct it giving it the cmd line to parse and optionally its desc |
| 86 | // 2. construct the cmd line description using AddXXX() if not done in (1) |
| 87 | // 3. call Parse() |
| 88 | // 4. use GetXXX() to retrieve the parsed info |
| 89 | // ---------------------------------------------------------------------------- |
| 90 | |
| 91 | class WXDLLEXPORT wxCmdLineParser |
| 92 | { |
| 93 | public: |
| 94 | // ctors and initializers |
| 95 | // ---------------------- |
| 96 | |
| 97 | // default ctor or ctor giving the cmd line in either Unix or Win form |
| 98 | wxCmdLineParser() { Init(); } |
| 99 | wxCmdLineParser(int argc, char **argv) { Init(); SetCmdLine(argc, argv); } |
| 100 | wxCmdLineParser(const wxString& cmdline) { Init(); SetCmdLine(cmdline); } |
| 101 | |
| 102 | // the same as above, but also gives the cmd line description - otherwise, |
| 103 | // use AddXXX() later |
| 104 | wxCmdLineParser(const wxCmdLineEntryDesc *desc) |
| 105 | { Init(); SetDesc(desc); } |
| 106 | wxCmdLineParser(const wxCmdLineEntryDesc *desc, int argc, char **argv) |
| 107 | { Init(); SetCmdLine(argc, argv); SetDesc(desc); } |
| 108 | wxCmdLineParser(const wxCmdLineEntryDesc *desc, const wxString& cmdline) |
| 109 | { Init(); SetCmdLine(cmdline); SetDesc(desc); } |
| 110 | |
| 111 | // set cmd line to parse after using one of the ctors which don't do it |
| 112 | void SetCmdLine(int argc, char **argv); |
| 113 | void SetCmdLine(const wxString& cmdline); |
| 114 | |
| 115 | // not virtual, don't use this class polymorphically |
| 116 | ~wxCmdLineParser(); |
| 117 | |
| 118 | // set different parser options |
| 119 | // ---------------------------- |
| 120 | |
| 121 | // by default, '-' is switch char under Unix, '-' or '/' under Win: |
| 122 | // switchChars contains all characters with which an option or switch may |
| 123 | // start |
| 124 | void SetSwitchChars(const wxString& switchChars); |
| 125 | |
| 126 | // long options are not POSIX-compliant, this option allows to disable them |
| 127 | void EnableLongOptions(bool enable = TRUE); |
| 128 | void DisableLongOptions() { EnableLongOptions(FALSE); } |
| 129 | |
| 130 | // extra text may be shown by Usage() method if set by this function |
| 131 | void SetLogo(const wxString& logo); |
| 132 | |
| 133 | // construct the cmd line description |
| 134 | // ---------------------------------- |
| 135 | |
| 136 | // take the cmd line description from the wxCMD_LINE_NONE terminated table |
| 137 | void SetDesc(const wxCmdLineEntryDesc *desc); |
| 138 | |
| 139 | // a switch: i.e. an option without value |
| 140 | void AddSwitch(const wxString& name, const wxString& lng = wxEmptyString, |
| 141 | const wxString& desc = wxEmptyString, |
| 142 | int flags = 0); |
| 143 | |
| 144 | // an option taking a value of the given type |
| 145 | void AddOption(const wxString& name, const wxString& lng = wxEmptyString, |
| 146 | const wxString& desc = wxEmptyString, |
| 147 | wxCmdLineParamType type = wxCMD_LINE_VAL_STRING, |
| 148 | int flags = 0); |
| 149 | |
| 150 | // a parameter |
| 151 | void AddParam(const wxString& desc = wxEmptyString, |
| 152 | wxCmdLineParamType type = wxCMD_LINE_VAL_STRING, |
| 153 | int flags = 0); |
| 154 | |
| 155 | // actions |
| 156 | // ------- |
| 157 | |
| 158 | // parse the command line, return 0 if ok, -1 if "-h" or "--help" option |
| 159 | // was encountered and the help message was given or a positive value if a |
| 160 | // syntax error occured |
| 161 | int Parse(); |
| 162 | |
| 163 | // give the usage message describing all program options |
| 164 | void Usage(); |
| 165 | |
| 166 | // get the command line arguments |
| 167 | // ------------------------------ |
| 168 | |
| 169 | // returns TRUE if the given switch was found |
| 170 | bool Found(const wxString& name) const; |
| 171 | |
| 172 | // returns TRUE if an option taking a string value was found and stores the |
| 173 | // value in the provided pointer |
| 174 | bool Found(const wxString& name, wxString *value) const; |
| 175 | |
| 176 | // returns TRUE if an option taking an integer value was found and stores |
| 177 | // the value in the provided pointer |
| 178 | bool Found(const wxString& name, long *value) const; |
| 179 | |
| 180 | // returns TRUE if an option taking a date value was found and stores the |
| 181 | // value in the provided pointer |
| 182 | bool Found(const wxString& name, wxDateTime *value) const; |
| 183 | |
| 184 | // gets the number of parameters found |
| 185 | size_t GetParamCount() const; |
| 186 | |
| 187 | // gets the value of Nth parameter (as string only for now) |
| 188 | wxString GetParam(size_t n = 0u) const; |
| 189 | |
| 190 | // Resets switches and options |
| 191 | void Reset(); |
| 192 | |
| 193 | private: |
| 194 | // common part of all ctors |
| 195 | void Init(); |
| 196 | |
| 197 | struct wxCmdLineParserData *m_data; |
| 198 | }; |
| 199 | |
| 200 | #endif // _WX_CMDLINE_H_ |