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/*
* Copyright (c) [2011-2015] Novell, Inc.
* Copyright (c) [2016-2020] SUSE LLC
*
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as published
* by the Free Software Foundation.
*
* 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, contact Novell, Inc.
*
* To contact Novell about this file by physical or electronic mail, you may
* find current contact information at www.novell.com.
*/
#ifndef SNAPPER_GET_OPTS_H
#define SNAPPER_GET_OPTS_H
#include <getopt.h>
#include <string>
#include <vector>
#include <map>
#include <snapper/Exception.h>
namespace snapper
{
using namespace std;
struct OptionsException : public Exception
{
explicit OptionsException(const string& msg) : Exception(msg) {}
};
struct Option
{
Option(const char* name, int has_arg, char c = 0)
: name(name), has_arg(has_arg), c(c)
{
}
const char* name;
int has_arg;
char c;
};
class ParsedOpts
{
public:
ParsedOpts(const map<string, string>& args) : args(args) {}
using const_iterator = map<string, string>::const_iterator;
bool has_option(const string& name) const { return find(name) != end(); }
const_iterator find(const string& name) const { return args.find(name); }
const_iterator end() const { return args.end(); }
private:
const map<string, string> args;
};
class GetOpts
{
public:
static const vector<Option> no_options;
GetOpts(int argc, char** argv);
ParsedOpts parse(const vector<Option>& options);
ParsedOpts parse(const char* command, const vector<Option>& options);
bool has_args() const { return argc - optind > 0; }
int num_args() const { return argc - optind; }
const char* pop_arg() { return argv[optind++]; }
vector<string> get_args() const { return vector<string>(&argv[optind], &argv[argc]); }
private:
int argc;
char** argv;
string make_optstring(const vector<Option>& options) const;
vector<struct option> make_longopts(const vector<Option>& options) const;
vector<Option>::const_iterator find(const vector<Option>& options, char c) const;
};
}
#endif
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