| // Copyright (c) 2001-2009 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(BOOST_SPIRIT_KARMA_CHAR_FEB_21_2007_0543PM) |
| #define BOOST_SPIRIT_KARMA_CHAR_FEB_21_2007_0543PM |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1020) |
| #pragma once // MS compatible compilers support #pragma once |
| #endif |
| |
| #include <boost/spirit/home/karma/domain.hpp> |
| #include <boost/spirit/home/karma/delimit.hpp> |
| #include <boost/spirit/home/karma/detail/generate_to.hpp> |
| #include <boost/spirit/home/support/modifier.hpp> |
| #include <boost/spirit/home/support/char_class.hpp> |
| #include <boost/spirit/home/support/detail/to_narrow.hpp> |
| #include <boost/spirit/home/support/iso8859_1.hpp> |
| #include <boost/spirit/home/support/ascii.hpp> |
| #include <boost/fusion/include/at.hpp> |
| #include <boost/fusion/include/value_at.hpp> |
| #include <boost/fusion/include/vector.hpp> |
| #include <boost/fusion/include/cons.hpp> |
| #include <boost/utility/enable_if.hpp> |
| |
| namespace boost { namespace spirit { namespace karma |
| { |
| /////////////////////////////////////////////////////////////////////////// |
| // |
| // any_char |
| // generates a single character from the associated parameter |
| // |
| // Note: this generator has to have an associated parameter |
| // |
| /////////////////////////////////////////////////////////////////////////// |
| template <typename Char> |
| struct any_char |
| { |
| template <typename Component, typename Context, typename Unused> |
| struct attribute |
| { |
| typedef Char type; |
| }; |
| |
| // any_char has a parameter attached |
| template <typename Component, typename OutputIterator, |
| typename Context, typename Delimiter, typename Parameter> |
| static bool |
| generate(Component const&, OutputIterator& sink, |
| Context& /*ctx*/, Delimiter const& d, Parameter const& param) |
| { |
| detail::generate_to(sink, param); |
| karma::delimit(sink, d); // always do post-delimiting |
| return true; |
| } |
| |
| // this any_char has no parameter attached, it needs to have been |
| // initialized from a direct literal |
| template <typename Component, typename OutputIterator, |
| typename Context, typename Delimiter> |
| static bool |
| generate(Component const&, OutputIterator&, Context&, Delimiter const&, |
| unused_type) |
| { |
| BOOST_MPL_ASSERT_MSG(false, char__not_usable_without_attribute, ()); |
| return false; |
| } |
| |
| template <typename Component, typename Context> |
| static std::string what(Component const& component, Context const& ctx) |
| { |
| return "any-char"; |
| } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // |
| // literal_char |
| // generates a single character given by a literal it was initialized |
| // from |
| // |
| /////////////////////////////////////////////////////////////////////////// |
| template <typename Char> |
| struct literal_char |
| { |
| template <typename Component, typename Context, typename Unused> |
| struct attribute |
| { |
| typedef unused_type type; |
| }; |
| |
| // any_char has a parameter attached |
| template <typename Component, typename OutputIterator, |
| typename Context, typename Delimiter, typename Parameter> |
| static bool |
| generate(Component const& component, OutputIterator& sink, |
| Context& /*ctx*/, Delimiter const& d, Parameter const& /*param*/) |
| { |
| detail::generate_to(sink, fusion::at_c<0>(component.elements)); |
| karma::delimit(sink, d); // always do post-delimiting |
| return true; |
| } |
| |
| template <typename Component, typename Context> |
| static std::string what(Component const& component, Context const& ctx) |
| { |
| return std::string("'") |
| + spirit::detail::to_narrow_char( |
| fusion::at_c<0>(component.elements)) |
| + '\''; |
| } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // |
| // lazy_char |
| // generates a single character given by a functor it was initialized |
| // from |
| // |
| /////////////////////////////////////////////////////////////////////////// |
| struct lazy_char |
| { |
| template <typename Component, typename Context, typename Unused> |
| struct attribute |
| { |
| typedef unused_type type; |
| }; |
| |
| // any_char has a parameter attached |
| template <typename Component, typename OutputIterator, |
| typename Context, typename Delimiter, typename Parameter> |
| static bool |
| generate(Component const& component, OutputIterator& sink, |
| Context& ctx, Delimiter const& d, Parameter const& /*param*/) |
| { |
| detail::generate_to(sink, |
| fusion::at_c<0>(component.elements)(unused, ctx)); |
| karma::delimit(sink, d); // always do post-delimiting |
| return true; |
| } |
| |
| template <typename Component, typename Context> |
| static std::string what(Component const& component, Context const& ctx) |
| { |
| return "char"; |
| } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // |
| // lower and upper case variants of any_char with an associated parameter |
| // note: this generator has to have a parameter associated |
| // |
| /////////////////////////////////////////////////////////////////////////// |
| template <typename Char, typename Tag> |
| struct case_any_char |
| { |
| template <typename Component, typename Context, typename Unused> |
| struct attribute |
| { |
| typedef Char type; |
| }; |
| |
| typedef typename Tag::char_set char_set; |
| typedef typename Tag::char_class char_class_; |
| |
| // case_any_char has a parameter attached |
| template <typename Component, typename OutputIterator, |
| typename Context, typename Delimiter, typename Parameter> |
| static bool |
| generate(Component const& /*component*/, OutputIterator& sink, |
| Context& /*ctx*/, Delimiter const& d, Parameter const& param) |
| { |
| using spirit::char_class::convert; |
| Char p = convert<char_set>::to(char_class_(), param); |
| detail::generate_to(sink, p); |
| karma::delimit(sink, d); // always do post-delimiting |
| return true; |
| } |
| |
| // this case_any_char has no parameter attached, it needs to have been |
| // initialized from a direct literal |
| template <typename Component, typename OutputIterator, |
| typename Context, typename Delimiter> |
| static bool |
| generate(Component const&, OutputIterator&, Context&, Delimiter const&, |
| unused_type) |
| { |
| BOOST_MPL_ASSERT_MSG(false, char__not_usable_without_attribute, ()); |
| return false; |
| } |
| |
| template <typename Component, typename Context> |
| static std::string what(Component const& component, Context const& ctx) |
| { |
| std::string result; |
| result = std::string("any-") + |
| spirit::char_class::what<char_set>::is(char_class_()) + |
| "case-char"; |
| return result; |
| } |
| }; |
| |
| }}} // namespace boost::spirit::karma |
| |
| namespace boost { namespace spirit { namespace traits |
| { |
| /////////////////////////////////////////////////////////////////////////// |
| // lower_case and upper_case any_char and literal_char generators |
| /////////////////////////////////////////////////////////////////////////// |
| template <typename Domain, typename Elements, typename Modifier, |
| typename Char> |
| struct make_modified_component< |
| Domain, karma::literal_char<Char>, Elements, Modifier, |
| typename enable_if< |
| is_member_of_modifier<Modifier, spirit::char_class::lower_case_base_tag> |
| >::type |
| > |
| { |
| typedef typename |
| fusion::result_of::value_at_c<Elements, 0>::type |
| char_type; |
| typedef fusion::vector<char_type> vector_type; |
| |
| typedef component< |
| karma::domain, karma::literal_char<Char>, vector_type> |
| type; |
| |
| static type |
| call(Elements const& elements) |
| { |
| typedef typename Modifier::char_set char_set; |
| |
| char_type ch = fusion::at_c<0>(elements); |
| vector_type v(char_set::tolower(ch)); |
| return type(v); |
| } |
| }; |
| |
| template <typename Domain, typename Elements, typename Modifier, |
| typename Char> |
| struct make_modified_component< |
| Domain, karma::literal_char<Char>, Elements, Modifier, |
| typename enable_if< |
| is_member_of_modifier<Modifier, spirit::char_class::upper_case_base_tag> |
| >::type |
| > |
| { |
| typedef typename |
| fusion::result_of::value_at_c<Elements, 0>::type |
| char_type; |
| typedef fusion::vector<char_type> vector_type; |
| |
| typedef |
| component<karma::domain, karma::literal_char<Char>, vector_type> |
| type; |
| |
| static type |
| call(Elements const& elements) |
| { |
| typedef typename Modifier::char_set char_set; |
| |
| char_type ch = fusion::at_c<0>(elements); |
| vector_type v(char_set::toupper(ch)); |
| return type(v); |
| } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // lower_case and upper case_any_char conversions |
| /////////////////////////////////////////////////////////////////////////// |
| template <typename Domain, typename Elements, typename Modifier, |
| typename Char> |
| struct make_modified_component< |
| Domain, karma::any_char<Char>, Elements, Modifier, |
| typename enable_if< |
| is_member_of_modifier<Modifier, spirit::char_class::lower_case_base_tag> |
| >::type |
| > |
| { |
| typedef typename Modifier::char_set char_set; |
| typedef spirit::char_class::tag::lower char_class_; |
| typedef spirit::char_class::key<char_set, char_class_> key_tag; |
| |
| typedef component< |
| karma::domain, karma::case_any_char<Char, key_tag>, fusion::nil> |
| type; |
| |
| static type |
| call(Elements const&) |
| { |
| return type(fusion::nil()); |
| } |
| }; |
| |
| template <typename Domain, typename Elements, typename Modifier, |
| typename Char> |
| struct make_modified_component< |
| Domain, karma::any_char<Char>, Elements, Modifier, |
| typename enable_if< |
| is_member_of_modifier<Modifier, spirit::char_class::upper_case_base_tag> |
| >::type |
| > |
| { |
| typedef typename Modifier::char_set char_set; |
| typedef spirit::char_class::tag::upper char_class_; |
| typedef spirit::char_class::key<char_set, char_class_> key_tag; |
| |
| typedef component< |
| karma::domain, karma::case_any_char<Char, key_tag>, fusion::nil> |
| type; |
| |
| static type |
| call(Elements const&) |
| { |
| return type(fusion::nil()); |
| } |
| }; |
| |
| }}} // namespace boost::spirit::traits |
| |
| #endif // !defined(BOOST_SPIRIT_KARMA_CHAR_FEB_21_2007_0543PM) |
