minix/external/bsd/kyua-cli/dist/utils/cmdline/parser.hpp

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// Copyright 2010 Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of Google Inc. nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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/// \file utils/cmdline/parser.hpp
/// Routines and data types to parse command line options and arguments.
#if !defined(UTILS_CMDLINE_PARSER_HPP)
#define UTILS_CMDLINE_PARSER_HPP
#include <map>
#include <string>
#include <vector>
namespace utils {
namespace cmdline {
class base_option;
/// Replacement for argc and argv to represent a command line.
///
/// TODO(jmmv): This type should be somewhere else. base_command.hpp should not
/// be including this file to just get this type.
typedef std::vector< std::string > args_vector;
/// Collection of options to be used during parsing.
///
/// TODO(jmmv): This type should be somewhere else. base_command.hpp should not
/// be including this file to just get this type.
typedef std::vector< const base_option* > options_vector;
/// Representation of a parsed command line.
///
/// This class is returned by the command line parsing algorithm and provides
/// methods to query the values of the options and the value of the arguments.
/// All the values fed into this class can considered to be sane (i.e. the
/// arguments to the options and the arguments to the command are valid), as all
/// validation happens during parsing (before this class is instantiated).
class parsed_cmdline {
/// Mapping of option names to all the values provided.
std::map< std::string, std::vector< std::string > > _option_values;
/// Collection of arguments with all options removed.
args_vector _arguments;
const std::vector< std::string >& get_option_raw(const std::string&) const;
public:
parsed_cmdline(const std::map< std::string, std::vector< std::string > >&,
const args_vector&);
bool has_option(const std::string&) const;
template< typename Option >
typename Option::option_type get_option(const std::string&) const;
template< typename Option >
std::vector< typename Option::option_type > get_multi_option(
const std::string&) const;
const args_vector& arguments(void) const;
};
parsed_cmdline parse(const args_vector&, const options_vector&);
parsed_cmdline parse(const int, const char* const*, const options_vector&);
} // namespace cmdline
} // namespace utils
#endif // !defined(UTILS_CMDLINE_PARSER_HPP)