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author | Vlad Voicu <vladv@rosedu.org> | 2012-03-02 10:01:11 (GMT) |
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committer | Kevin Smith <git@kismith.co.uk> | 2012-03-09 15:04:05 (GMT) |
commit | 1c8cd160b79b6bbcec72042bdb104ba530508a93 (patch) | |
tree | cff302b81e74c557fbc9e30fd43144d981b613d0 /3rdParty/Boost/src/boost/spirit/home/lex/lexer/string_token_def.hpp | |
parent | 2944711aefec9a9dd66052440bc4f921910dd780 (diff) | |
download | swift-contrib-1c8cd160b79b6bbcec72042bdb104ba530508a93.zip swift-contrib-1c8cd160b79b6bbcec72042bdb104ba530508a93.tar.bz2 |
Added spirit to bundled boost
Diffstat (limited to '3rdParty/Boost/src/boost/spirit/home/lex/lexer/string_token_def.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/spirit/home/lex/lexer/string_token_def.hpp | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/spirit/home/lex/lexer/string_token_def.hpp b/3rdParty/Boost/src/boost/spirit/home/lex/lexer/string_token_def.hpp new file mode 100644 index 0000000..3652958 --- /dev/null +++ b/3rdParty/Boost/src/boost/spirit/home/lex/lexer/string_token_def.hpp @@ -0,0 +1,146 @@ +// Copyright (c) 2001-2011 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_LEX_STRING_TOKEN_DEF_MAR_28_2007_0722PM) +#define BOOST_SPIRIT_LEX_STRING_TOKEN_DEF_MAR_28_2007_0722PM + +#if defined(_MSC_VER) +#pragma once +#endif + +#include <boost/spirit/home/support/common_terminals.hpp> +#include <boost/spirit/home/support/string_traits.hpp> +#include <boost/spirit/home/lex/domain.hpp> +#include <boost/spirit/home/lex/lexer_type.hpp> +#include <boost/spirit/home/lex/meta_compiler.hpp> +#include <boost/type_traits/add_const.hpp> +#include <boost/type_traits/add_reference.hpp> +#include <boost/type_traits/remove_const.hpp> +#include <boost/fusion/include/vector.hpp> +#include <boost/fusion/include/at.hpp> + +namespace boost { namespace spirit +{ + /////////////////////////////////////////////////////////////////////////// + // Enablers + /////////////////////////////////////////////////////////////////////////// + template <typename T> + struct use_terminal<lex::domain, T + , typename enable_if<traits::is_string<T> >::type> // enables strings + : mpl::true_ {}; + + template <typename CharEncoding, typename A0> + struct use_terminal<lex::domain + , terminal_ex< + tag::char_code<tag::string, CharEncoding> // enables string(str) + , fusion::vector1<A0> > + > : traits::is_string<A0> {}; + +}} + +namespace boost { namespace spirit { namespace lex +{ + // use string from standard character set by default + using spirit::standard::string_type; + using spirit::standard::string; + + /////////////////////////////////////////////////////////////////////////// + // + // string_token_def + // represents a string based token definition + // + /////////////////////////////////////////////////////////////////////////// + template <typename String, typename CharEncoding = char_encoding::standard> + struct string_token_def + : primitive_lexer<string_token_def<String, CharEncoding> > + { + typedef typename + remove_const<typename traits::char_type_of<String>::type>::type + char_type; + typedef std::basic_string<char_type> string_type; + + string_token_def(typename add_reference<String>::type str) + : str_(str), id_(std::size_t(~0)), unique_id_(std::size_t(~0)) + , token_state_(std::size_t(~0)) + {} + + template <typename LexerDef, typename String_> + void collect(LexerDef& lexdef, String_ const& state + , String_ const& targetstate) const + { + std::size_t state_id = lexdef.add_state(state.c_str()); + + // If the following assertion fires you are probably trying to use + // a single string_token_def instance in more than one lexer state. + // This is not possible. Please create a separate token_def instance + // from the same regular expression for each lexer state it needs + // to be associated with. + BOOST_ASSERT( + (std::size_t(~0) == token_state_ || state_id == token_state_) && + "Can't use single string_token_def with more than one lexer state"); + + char_type const* target = targetstate.empty() ? 0 : targetstate.c_str(); + if (target) + lexdef.add_state(target); + + token_state_ = state_id; + + typedef typename LexerDef::id_type id_type; + if (std::size_t(~0) == id_) + id_ = lexdef.get_next_id(); + + unique_id_ = lexdef.add_token (state.c_str(), str_, id_, target); + } + + template <typename LexerDef> + void add_actions(LexerDef&) const {} + + std::size_t id() const { return id_; } + std::size_t unique_id() const { return unique_id_; } + std::size_t state() const { return token_state_; } + + string_type str_; + mutable std::size_t id_; + mutable std::size_t unique_id_; + mutable std::size_t token_state_; + }; + + /////////////////////////////////////////////////////////////////////////// + // Lex generators: make_xxx function (objects) + /////////////////////////////////////////////////////////////////////////// + template <typename T, typename Modifiers> + struct make_primitive<T, Modifiers + , typename enable_if<traits::is_string<T> >::type> + { + typedef typename add_const<T>::type const_string; + typedef string_token_def<const_string> result_type; + + result_type operator()( + typename add_reference<const_string>::type str, unused_type) const + { + return result_type(str); + } + }; + + template <typename Modifiers, typename CharEncoding, typename A0> + struct make_primitive< + terminal_ex< + tag::char_code<tag::string, CharEncoding> + , fusion::vector1<A0> > + , Modifiers> + { + typedef typename add_const<A0>::type const_string; + typedef string_token_def<const_string, CharEncoding> result_type; + + template <typename Terminal> + result_type operator()(Terminal const& term, unused_type) const + { + return result_type(fusion::at_c<0>(term.args)); + } + }; + +}}} // namespace boost::spirit::lex + +#endif |