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Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-1.5/src/CmdLineParserBase.h')
| -rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-1.5/src/CmdLineParserBase.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-1.5/src/CmdLineParserBase.h b/Build/source/texk/dvisvgm/dvisvgm-1.5/src/CmdLineParserBase.h new file mode 100644 index 00000000000..b37cbb0863c --- /dev/null +++ b/Build/source/texk/dvisvgm/dvisvgm-1.5/src/CmdLineParserBase.h @@ -0,0 +1,99 @@ +/************************************************************************* +** CmdLineParserBase.h ** +** ** +** This file is part of dvisvgm -- the DVI to SVG converter ** +** Copyright (C) 2005-2013 Martin Gieseking <martin.gieseking@uos.de> ** +** ** +** This program is free software; you can redistribute it and/or ** +** modify it under the terms of the GNU General Public License as ** +** published by the Free Software Foundation; either version 3 of ** +** the License, or (at your option) any later version. ** +** ** +** This program 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 General Public License for more details. ** +** ** +** You should have received a copy of the GNU General Public License ** +** along with this program; if not, see <http://www.gnu.org/licenses/>. ** +*************************************************************************/ + +#ifndef CMDLINEPARSERBASE_H +#define CMDLINEPARSERBASE_H + +#include <string> +#include <vector> + +class InputReader; + +class CmdLineParserBase +{ + protected: + struct Option; + + struct OptionHandler { + virtual ~OptionHandler () {} + virtual void operator () (CmdLineParserBase *obj, InputReader &ir, const Option &opt, bool longopt) const=0; + }; + + template <typename T> + class OptionHandlerImpl : public OptionHandler { + protected: + typedef void (T::*LocalHandler)(InputReader &ir, const Option &opt, bool longopt); + + public: + OptionHandlerImpl (LocalHandler handler) : _handler(handler) {} + + void operator () (CmdLineParserBase *obj, InputReader &ir, const Option &opt, bool longopt) const { + if (T *tobj = dynamic_cast<T*>(obj)) + (tobj->*_handler)(ir, opt, longopt); + } + + private: + LocalHandler _handler; + }; + + enum ArgMode {ARG_NONE, ARG_OPTIONAL, ARG_REQUIRED}; + + struct Option { + ~Option () {delete handler;} + char shortname; + const char *longname; + ArgMode argmode; // mode of option argument + const OptionHandler *handler; + }; + + public: + virtual void parse (int argc, char **argv, bool printErrors=true); + virtual void help (int mode=0) const; + virtual int numFiles () const {return _files.size();} + virtual const char* file (size_t n) {return n < _files.size() ? _files[n].c_str() : 0;} +// virtual void status () const; + virtual bool error () const {return _error;} + + protected: + CmdLineParserBase () : _printErrors(true), _error(false) {} + CmdLineParserBase (const CmdLineParserBase &cmd) : _printErrors(true), _error(false) {} + virtual ~CmdLineParserBase () {} + virtual void init (); + virtual void error (const Option &opt, bool longopt, const char *msg) const; + virtual const Option* options (size_t *numopts) const =0; + virtual const char** helplines (size_t *numlines) const =0; + bool checkArgPrefix (InputReader &ir, const Option &opt, bool longopt) const; + bool checkNoArg (InputReader &ir, const Option &opt, bool longopt) const; + bool getIntArg (InputReader &ir, const Option &opt, bool longopt, int &arg) const; + bool getUIntArg (InputReader &ir, const Option &opt, bool longopt, unsigned &arg) const; + bool getDoubleArg (InputReader &ir, const Option &opt, bool longopt, double &arg) const; + bool getStringArg (InputReader &ir, const Option &opt, bool longopt, std::string &arg) const; + bool getBoolArg (InputReader &ir, const Option &opt, bool longopt, bool &arg) const; + bool getCharArg (InputReader &ir, const Option &opt, bool longopt, char &arg) const; + const Option* option (char shortname) const; + const Option* option (const std::string &longname) const; + + private: + bool _printErrors; ///< if true, print error messages + mutable bool _error; ///< error occured while parsing options + std::vector<std::string> _files; ///< filename parameters +}; + +#endif |