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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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