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/*************************************************************************
** CLCommandLine.hpp **
** **
** This file is part of dvisvgm -- a fast DVI to SVG converter **
** Copyright (C) 2005-2021 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 CL_COMMANDLINE_HPP
#define CL_COMMANDLINE_HPP
#include <array>
#include <ostream>
#include <string>
#include <sstream>
#include <vector>
#include "CLOption.hpp"
#include "MessageException.hpp"
namespace CL {
class CommandLine {
public:
CommandLine (const char *summary, const char *usage, const char *copyright);
virtual ~CommandLine () =default;
void parse (int argc, char **argv);
void help (std::ostream &os, int mode=0) const;
void addFilename (const std::string &fname) {_files.emplace_back(fname);}
bool singleDashGiven () const {return _singleDashParsed;}
const std::vector<std::string>& filenames () const {return _files;}
protected:
using OptSectPair = std::pair<Option*,int>;
void parseShortOption (std::istringstream &is, int argc, char **argv, int &argn);
void parseLongOption (std::istream &is);
virtual std::vector<OptSectPair>& options () const =0;
virtual const char* section (size_t n) const {return nullptr;}
Option* lookupOption (char optchar) const;
std::vector<Option*> lookupOption (const std::string &optname) const;
private:
const char *_summary;
const char *_usage;
const char *_copyright;
bool _singleDashParsed=false; ///< true if a single '-' w/o a following char was parsed
std::vector<std::string> _files;
};
struct CommandLineException : public MessageException {
explicit CommandLineException (const std::string &msg) : MessageException(msg) {}
};
} // namespace CL
#endif
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