Chris@102: /*=============================================================================
Chris@102:     Copyright (c) 2001-2014 Joel de Guzman
Chris@102: 
Chris@102:     Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@102:     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@102: ==============================================================================*/
Chris@102: #if !defined(BOOST_SPIRIT_X3_CHAR_CLASS_APRIL_16_2006_1051AM)
Chris@102: #define BOOST_SPIRIT_X3_CHAR_CLASS_APRIL_16_2006_1051AM
Chris@102: 
Chris@102: #if defined(_MSC_VER)
Chris@102: #pragma once
Chris@102: #endif
Chris@102: 
Chris@102: #include <boost/spirit/home/x3/char/char_parser.hpp>
Chris@102: #include <boost/spirit/home/x3/char/detail/cast_char.hpp>
Chris@102: #include <boost/spirit/home/support/char_encoding/standard.hpp>
Chris@102: #include <boost/spirit/home/support/char_encoding/standard_wide.hpp>
Chris@102: #include <boost/spirit/home/support/char_encoding/ascii.hpp>
Chris@102: #include <boost/spirit/home/support/char_encoding/iso8859_1.hpp>
Chris@102: 
Chris@102: namespace boost { namespace spirit { namespace x3
Chris@102: {
Chris@102:     ///////////////////////////////////////////////////////////////////////////
Chris@102:     struct char_tag {};
Chris@102:     struct alnum_tag {};
Chris@102:     struct alpha_tag {};
Chris@102:     struct blank_tag {};
Chris@102:     struct cntrl_tag {};
Chris@102:     struct digit_tag {};
Chris@102:     struct graph_tag {};
Chris@102:     struct print_tag {};
Chris@102:     struct punct_tag {};
Chris@102:     struct space_tag {};
Chris@102:     struct xdigit_tag {};
Chris@102:     struct lower_tag {};
Chris@102:     struct upper_tag {};
Chris@102: 
Chris@102:     ///////////////////////////////////////////////////////////////////////////
Chris@102:     template <typename Encoding>
Chris@102:     struct char_class_base
Chris@102:     {
Chris@102:         typedef typename Encoding::char_type char_type;
Chris@102: 
Chris@102: #define BOOST_SPIRIT_X3_CLASSIFY(name)                                             \
Chris@102:         template <typename Char>                                                \
Chris@102:         static bool                                                             \
Chris@102:         is(name##_tag, Char ch)                                                 \
Chris@102:         {                                                                       \
Chris@102:             return Encoding::is##name                                           \
Chris@102:                 BOOST_PREVENT_MACRO_SUBSTITUTION                                \
Chris@102:                     (detail::cast_char<char_type>(ch));                         \
Chris@102:         }                                                                       \
Chris@102:         /***/
Chris@102: 
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(char)
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(alnum)
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(alpha)
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(digit)
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(xdigit)
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(cntrl)
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(graph)
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(lower)
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(print)
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(punct)
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(space)
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(blank)
Chris@102:         BOOST_SPIRIT_X3_CLASSIFY(upper)
Chris@102: 
Chris@102: #undef BOOST_SPIRIT_X3_CLASSIFY
Chris@102:     };
Chris@102: 
Chris@102:     template <typename Encoding, typename Tag>
Chris@102:     struct char_class
Chris@102:       : char_parser<char_class<Encoding, Tag>>
Chris@102:     {
Chris@102:         typedef Encoding encoding;
Chris@102:         typedef Tag tag;
Chris@102:         typedef typename Encoding::char_type char_type;
Chris@102:         typedef char_type attribute_type;
Chris@102:         static bool const has_attribute = true;
Chris@102: 
Chris@102:         template <typename Char, typename Context>
Chris@102:         bool test(Char ch, Context const&) const
Chris@102:         {
Chris@102:             return ((sizeof(Char) <= sizeof(char_type)) || encoding::ischar(ch))
Chris@102:                 && char_class_base<Encoding>::is(tag(), ch);
Chris@102:         }
Chris@102:     };
Chris@102: 
Chris@102: #define BOOST_SPIRIT_X3_CHAR_CLASS(encoding, name)                                 \
Chris@102:     typedef char_class<char_encoding::encoding, name##_tag> name##_type;        \
Chris@102:     name##_type const name = name##_type();                                     \
Chris@102:     /***/
Chris@102: 
Chris@102: #define BOOST_SPIRIT_X3_CHAR_CLASSES(encoding)                                     \
Chris@102:     namespace encoding                                                          \
Chris@102:     {                                                                           \
Chris@102:         BOOST_SPIRIT_X3_CHAR_CLASS(encoding, alnum)                                \
Chris@102:         BOOST_SPIRIT_X3_CHAR_CLASS(encoding, alpha)                                \
Chris@102:         BOOST_SPIRIT_X3_CHAR_CLASS(encoding, digit)                                \
Chris@102:         BOOST_SPIRIT_X3_CHAR_CLASS(encoding, xdigit)                               \
Chris@102:         BOOST_SPIRIT_X3_CHAR_CLASS(encoding, cntrl)                                \
Chris@102:         BOOST_SPIRIT_X3_CHAR_CLASS(encoding, graph)                                \
Chris@102:         BOOST_SPIRIT_X3_CHAR_CLASS(encoding, lower)                                \
Chris@102:         BOOST_SPIRIT_X3_CHAR_CLASS(encoding, print)                                \
Chris@102:         BOOST_SPIRIT_X3_CHAR_CLASS(encoding, punct)                                \
Chris@102:         BOOST_SPIRIT_X3_CHAR_CLASS(encoding, space)                                \
Chris@102:         BOOST_SPIRIT_X3_CHAR_CLASS(encoding, blank)                                \
Chris@102:         BOOST_SPIRIT_X3_CHAR_CLASS(encoding, upper)                                \
Chris@102:     }                                                                           \
Chris@102:     /***/
Chris@102: 
Chris@102:     BOOST_SPIRIT_X3_CHAR_CLASSES(standard)
Chris@102:     BOOST_SPIRIT_X3_CHAR_CLASSES(standard_wide)
Chris@102:     BOOST_SPIRIT_X3_CHAR_CLASSES(ascii)
Chris@102:     BOOST_SPIRIT_X3_CHAR_CLASSES(iso8859_1)
Chris@102: 
Chris@102: #undef BOOST_SPIRIT_X3_CHAR_CLASS
Chris@102: #undef BOOST_SPIRIT_X3_CHAR_CLASSES
Chris@102: 
Chris@102:     using standard::alnum_type;
Chris@102:     using standard::alpha_type;
Chris@102:     using standard::digit_type;
Chris@102:     using standard::xdigit_type;
Chris@102:     using standard::cntrl_type;
Chris@102:     using standard::graph_type;
Chris@102:     using standard::lower_type;
Chris@102:     using standard::print_type;
Chris@102:     using standard::punct_type;
Chris@102:     using standard::space_type;
Chris@102:     using standard::blank_type;
Chris@102:     using standard::upper_type;
Chris@102: 
Chris@102:     using standard::alnum;
Chris@102:     using standard::alpha;
Chris@102:     using standard::digit;
Chris@102:     using standard::xdigit;
Chris@102:     using standard::cntrl;
Chris@102:     using standard::graph;
Chris@102:     using standard::lower;
Chris@102:     using standard::print;
Chris@102:     using standard::punct;
Chris@102:     using standard::space;
Chris@102:     using standard::blank;
Chris@102:     using standard::upper;
Chris@102: }}}
Chris@102: 
Chris@102: #endif