string/detail/string_parse.hpp

0001 /*=============================================================================
0002     Copyright (c) 2001-2014 Joel de Guzman
0003
0004     Distributed under the Boost Software License, Version 1.0. (See accompanying
0005     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 ==============================================================================*/
0007 #if !defined(BOOST_SPIRIT_X3_STRING_PARSE_APR_18_2006_1125PM)
0008 #define BOOST_SPIRIT_X3_STRING_PARSE_APR_18_2006_1125PM
0009
0010 #include <boost/spirit/home/x3/support/traits/move_to.hpp>
0011
0012 namespace boost { namespace spirit { namespace x3 { namespace detail
0013 {
0014     template <typename Char, typename Iterator, typename Attribute, typename CaseCompareFunc>
0015     inline bool string_parse(
0016         Char const* str
0017       , Iterator& first, Iterator const& last, Attribute& attr, CaseCompareFunc const& compare)
0018     {
0019         Iterator i = first;
0020         Char ch = *str;
0021
0022         for (; !!ch; ++i)
0023         {
0024             if (i == last || (compare(ch, *i) != 0))
0025                 return false;
0026             ch = *++str;
0027         }
0028
0029         x3::traits::move_to(first, i, attr);
0030         first = i;
0031         return true;
0032     }
0033
0034     template <typename String, typename Iterator, typename Attribute, typename CaseCompareFunc>
0035     inline bool string_parse(
0036         String const& str
0037       , Iterator& first, Iterator const& last, Attribute& attr, CaseCompareFunc const& compare)
0038     {
0039         Iterator i = first;
0040         typename String::const_iterator stri = str.begin();
0041         typename String::const_iterator str_last = str.end();
0042
0043         for (; stri != str_last; ++stri, ++i)
0044             if (i == last || (compare(*stri, *i) != 0))
0045                 return false;
0046         x3::traits::move_to(first, i, attr);
0047         first = i;
0048         return true;
0049     }
0050
0051     template <typename Char, typename Iterator, typename Attribute>
0052     inline bool string_parse(
0053         Char const* uc_i, Char const* lc_i
0054       , Iterator& first, Iterator const& last, Attribute& attr)
0055     {
0056         Iterator i = first;
0057
0058         for (; *uc_i && *lc_i; ++uc_i, ++lc_i, ++i)
0059             if (i == last || ((*uc_i != *i) && (*lc_i != *i)))
0060                 return false;
0061         x3::traits::move_to(first, i, attr);
0062         first = i;
0063         return true;
0064     }
0065
0066     template <typename String, typename Iterator, typename Attribute>
0067     inline bool string_parse(
0068         String const& ucstr, String const& lcstr
0069       , Iterator& first, Iterator const& last, Attribute& attr)
0070     {
0071         typename String::const_iterator uc_i = ucstr.begin();
0072         typename String::const_iterator uc_last = ucstr.end();
0073         typename String::const_iterator lc_i = lcstr.begin();
0074         Iterator i = first;
0075
0076         for (; uc_i != uc_last; ++uc_i, ++lc_i, ++i)
0077             if (i == last || ((*uc_i != *i) && (*lc_i != *i)))
0078                 return false;
0079         x3::traits::move_to(first, i, attr);
0080         first = i;
0081         return true;
0082     }
0083 }}}}
0084
0085 #endif