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- /*=============================================================================
- Copyright (c) 2001-2014 Joel de Guzman
- 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(BOOST_SPIRIT_X3_NO_CASE_STRING_PARSE_APR_18_2014_1125PM)
- #define BOOST_SPIRIT_X3_NO_CASE_STRING_PARSE_APR_18_2014_1125PM
- #include <boost/spirit/home/x3/char/char.hpp>
- #include <boost/spirit/home/x3/support/traits/move_to.hpp>
- namespace boost { namespace spirit { namespace x3 { namespace detail
- {
- template <typename Char, typename Encoding>
- struct no_case_string
- {
- typedef std::basic_string< Char > string_type;
- typedef typename string_type::const_iterator const_iterator;
- no_case_string(char_type const* str)
- : lower(str)
- , upper(str)
- {
- typename string_type::iterator loi = lower.begin();
- typename string_type::iterator upi = upper.begin();
- typedef typename Encoding::char_type encoded_char_type;
- Encoding encoding;
- for (; loi != lower.end(); ++loi, ++upi)
- {
- *loi = static_cast<char_type>(encoding.tolower(encoded_char_type(*loi)));
- *upi = static_cast<char_type>(encoding.toupper(encoded_char_type(*upi)));
- }
- }
- string_type lower;
- string_type upper;
-
- };
- template <typename String, typename Iterator, typename Attribute>
- inline bool no_case_string_parse(
- String const& str
- , Iterator& first, Iterator const& last, Attribute& attr)
- {
- typename String::const_iterator uc_i = str.upper.begin();
- typename String::const_iterator uc_last = str.upper.end();
- typename String::const_iterator lc_i = str.lower.begin();
- Iterator i = first;
- for (; uc_i != uc_last; ++uc_i, ++lc_i, ++i)
- if (i == last || ((*uc_i != *i) && (*lc_i != *i)))
- return false;
- x3::traits::move_to(first, i, attr);
- first = i;
- return true;
- }
- }}}}
- #endif
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