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- /*=============================================================================
- Copyright (c) 2001-2011 Joel de Guzman
- 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_PARSE_APRIL_16_2006_0442PM)
- #define BOOST_SPIRIT_PARSE_APRIL_16_2006_0442PM
- #if defined(_MSC_VER)
- #pragma once
- #endif
- #include <boost/spirit/home/support/context.hpp>
- #include <boost/spirit/home/support/nonterminal/locals.hpp>
- #include <boost/spirit/home/qi/detail/parse.hpp>
- #include <boost/iterator/iterator_concepts.hpp>
- namespace boost { namespace spirit { namespace qi
- {
- ///////////////////////////////////////////////////////////////////////////
- template <typename Iterator, typename Expr>
- inline bool
- parse(
- Iterator& first
- , Iterator last
- , Expr const& expr)
- {
- // Make sure the iterator is at least a readable forward traversal iterator.
- // If you got a compilation error here, then you are using a weaker iterator
- // while calling this function, you need to supply a readable forward traversal
- // iterator instead.
- BOOST_CONCEPT_ASSERT((boost_concepts::ReadableIteratorConcept<Iterator>));
- BOOST_CONCEPT_ASSERT((boost_concepts::ForwardTraversalConcept<Iterator>));
- return detail::parse_impl<Expr>::call(first, last, expr);
- }
- template <typename Iterator, typename Expr>
- inline bool
- parse(
- Iterator const& first_
- , Iterator last
- , Expr const& expr)
- {
- Iterator first = first_;
- return qi::parse(first, last, expr);
- }
- ///////////////////////////////////////////////////////////////////////////
- namespace detail
- {
- template <typename T>
- struct make_context
- {
- typedef context<fusion::cons<T&>, locals<> > type;
- };
- template <>
- struct make_context<unused_type>
- {
- typedef unused_type type;
- };
- }
- template <typename Iterator, typename Expr, typename Attr>
- inline bool
- parse(
- Iterator& first
- , Iterator last
- , Expr const& expr
- , Attr& attr)
- {
- // Make sure the iterator is at least a readable forward traversal iterator.
- // If you got a compilation error here, then you are using a weaker iterator
- // while calling this function, you need to supply a readable forward traversal
- // iterator instead.
- BOOST_CONCEPT_ASSERT((boost_concepts::ReadableIteratorConcept<Iterator>));
- BOOST_CONCEPT_ASSERT((boost_concepts::ForwardTraversalConcept<Iterator>));
- // Report invalid expression error as early as possible.
- // If you got an error_invalid_expression error message here,
- // then the expression (expr) is not a valid spirit qi expression.
- BOOST_SPIRIT_ASSERT_MATCH(qi::domain, Expr);
- typename detail::make_context<Attr>::type context(attr);
- return compile<qi::domain>(expr).parse(first, last, context, unused, attr);
- }
- template <typename Iterator, typename Expr, typename Attr>
- inline bool
- parse(
- Iterator const& first_
- , Iterator last
- , Expr const& expr
- , Attr& attr)
- {
- Iterator first = first_;
- return qi::parse(first, last, expr, attr);
- }
- ///////////////////////////////////////////////////////////////////////////
- template <typename Iterator, typename Expr, typename Skipper>
- inline bool
- phrase_parse(
- Iterator& first
- , Iterator last
- , Expr const& expr
- , Skipper const& skipper
- , BOOST_SCOPED_ENUM(skip_flag) post_skip = skip_flag::postskip)
- {
- // Make sure the iterator is at least a readable forward traversal iterator.
- // If you got a compilation error here, then you are using a weaker iterator
- // while calling this function, you need to supply a readable forward traversal
- // iterator instead.
- BOOST_CONCEPT_ASSERT((boost_concepts::ReadableIteratorConcept<Iterator>));
- BOOST_CONCEPT_ASSERT((boost_concepts::ForwardTraversalConcept<Iterator>));
- return detail::phrase_parse_impl<Expr>::call(
- first, last, expr, skipper, post_skip);
- }
- template <typename Iterator, typename Expr, typename Skipper>
- inline bool
- phrase_parse(
- Iterator const& first_
- , Iterator last
- , Expr const& expr
- , Skipper const& skipper
- , BOOST_SCOPED_ENUM(skip_flag) post_skip = skip_flag::postskip)
- {
- Iterator first = first_;
- return qi::phrase_parse(first, last, expr, skipper, post_skip);
- }
- ///////////////////////////////////////////////////////////////////////////
- template <typename Iterator, typename Expr, typename Skipper, typename Attr>
- inline bool
- phrase_parse(
- Iterator& first
- , Iterator last
- , Expr const& expr
- , Skipper const& skipper
- , BOOST_SCOPED_ENUM(skip_flag) post_skip
- , Attr& attr)
- {
- // Make sure the iterator is at least a readable forward traversal iterator.
- // If you got a compilation error here, then you are using a weaker iterator
- // while calling this function, you need to supply a readable forward traversal
- // iterator instead.
- BOOST_CONCEPT_ASSERT((boost_concepts::ReadableIteratorConcept<Iterator>));
- BOOST_CONCEPT_ASSERT((boost_concepts::ForwardTraversalConcept<Iterator>));
- // Report invalid expression error as early as possible.
- // If you got an error_invalid_expression error message here,
- // then either the expression (expr) or skipper is not a valid
- // spirit qi expression.
- BOOST_SPIRIT_ASSERT_MATCH(qi::domain, Expr);
- BOOST_SPIRIT_ASSERT_MATCH(qi::domain, Skipper);
- typedef
- typename result_of::compile<qi::domain, Skipper>::type
- skipper_type;
- skipper_type const skipper_ = compile<qi::domain>(skipper);
- typename detail::make_context<Attr>::type context(attr);
- if (!compile<qi::domain>(expr).parse(
- first, last, context, skipper_, attr))
- return false;
- if (post_skip == skip_flag::postskip)
- qi::skip_over(first, last, skipper_);
- return true;
- }
- template <typename Iterator, typename Expr, typename Skipper, typename Attr>
- inline bool
- phrase_parse(
- Iterator const& first_
- , Iterator last
- , Expr const& expr
- , Skipper const& skipper
- , BOOST_SCOPED_ENUM(skip_flag) post_skip
- , Attr& attr)
- {
- Iterator first = first_;
- return qi::phrase_parse(first, last, expr, skipper, post_skip, attr);
- }
- ///////////////////////////////////////////////////////////////////////////
- template <typename Iterator, typename Expr, typename Skipper, typename Attr>
- inline bool
- phrase_parse(
- Iterator& first
- , Iterator last
- , Expr const& expr
- , Skipper const& skipper
- , Attr& attr)
- {
- return qi::phrase_parse(first, last, expr, skipper, skip_flag::postskip, attr);
- }
- template <typename Iterator, typename Expr, typename Skipper, typename Attr>
- inline bool
- phrase_parse(
- Iterator const& first_
- , Iterator last
- , Expr const& expr
- , Skipper const& skipper
- , Attr& attr)
- {
- Iterator first = first_;
- return qi::phrase_parse(first, last, expr, skipper, skip_flag::postskip, attr);
- }
- }}}
- #endif
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