| /*============================================================================= |
| Copyright (c) 2001-2010 Hartmut Kaiser |
| |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| ==============================================================================*/ |
| #if !defined(SPIRIT_QI_BOOL_POLICIES_SEP_29_2009_0710AM) |
| #define SPIRIT_QI_BOOL_POLICIES_SEP_29_2009_0710AM |
| |
| #if defined(_MSC_VER) |
| #pragma once |
| #endif |
| |
| #include <boost/spirit/home/qi/detail/string_parse.hpp> |
| #include <boost/spirit/home/qi/detail/assign_to.hpp> |
| |
| namespace boost { namespace spirit { namespace qi |
| { |
| /////////////////////////////////////////////////////////////////////////// |
| // Default boolean policies |
| /////////////////////////////////////////////////////////////////////////// |
| template <typename T = bool> |
| struct bool_policies |
| { |
| template <typename Iterator, typename Attribute> |
| static bool |
| parse_true(Iterator& first, Iterator const& last, Attribute& attr) |
| { |
| if (detail::string_parse("true", first, last, unused)) |
| { |
| spirit::traits::assign_to(T(true), attr); // result is true |
| return true; |
| } |
| return false; |
| } |
| |
| template <typename Iterator, typename Attribute> |
| static bool |
| parse_false(Iterator& first, Iterator const& last, Attribute& attr) |
| { |
| if (detail::string_parse("false", first, last, unused)) |
| { |
| spirit::traits::assign_to(T(false), attr); // result is false |
| return true; |
| } |
| return false; |
| } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////// |
| template <typename T = bool> |
| struct no_case_bool_policies |
| { |
| template <typename Iterator, typename Attribute> |
| static bool |
| parse_true(Iterator& first, Iterator const& last, Attribute& attr) |
| { |
| if (detail::string_parse("true", "TRUE", first, last, unused)) |
| { |
| spirit::traits::assign_to(T(true), attr); // result is true |
| return true; |
| } |
| return false; |
| } |
| |
| template <typename Iterator, typename Attribute> |
| static bool |
| parse_false(Iterator& first, Iterator const& last, Attribute& attr) |
| { |
| if (detail::string_parse("false", "FALSE", first, last, unused)) |
| { |
| spirit::traits::assign_to(T(false), attr); // result is false |
| return true; |
| } |
| return false; |
| } |
| }; |
| |
| }}} |
| |
| #endif |