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/*
Copyright (C) 2009 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _H_CMD_LINE_PARSER
#define _H_CMD_LINE_PARSER
class CmdLineParser {
public:
enum {
OPTION_ERROR = -1,
OPTION_DONE = 0,
OPTION_HELP = 256,
OPTION_FIRST_AVAILABLE,
};
CmdLineParser(std::string description, bool allow_positional_args);
virtual ~CmdLineParser();
void add(int id, const std::string& name, const std::string& help,
char short_name = 0);
void add(int id, const std::string& name, const std::string& help,
const std::string& arg_name, bool required_arg, char short_name = 0);
void set_multi(int id, char separator);
void set_required(int id);
void begin(int argc, char** argv);
int get_option(char** val);
char* next_argument();
bool is_set(int id);
void show_help();
private:
class Option;
enum OptionType {
NO_ARGUMENT,
OPTIONAL_ARGUMENT,
REQUIRED_ARGUMENT,
};
void add_private(int id, const std::string& name, char short_name, OptionType type,
const std::string& help, const std::string& arg_name);
Option* find(char short_name);
Option* find(int id);
Option* find(const std::string& name);
Option* find_missing_opt();
void build();
char* start_multi(char *optarg, char separator);
char* next_multi();
private:
class Option {
public:
Option(int in_id, const std::string& in_name, char in_short_name, OptionType in_type,
const std::string& in_help, const std::string& arg_name);
public:
int id;
std::string name;
std::string arg_name;
OptionType type;
char short_name;
std::string help;
bool optional;
bool is_set;
char separator;
};
std::string _description;
std::vector<struct option> _long_options;
std::string _short_options;
typedef std::list<Option*> Options;
Options _options;
int _argc;
char** _argv;
char* _multi_args;
char* _multi_next;
char _multi_separator;
bool _positional_args;
bool _done;
};
#endif
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