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104 lines
4.1 KiB
104 lines
4.1 KiB
/////////////////////////////////////////////////////////////////////////////// |
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// compile.hpp |
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// |
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// Copyright 2008 Eric Niebler. Distributed under the Boost |
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// Software License, Version 1.0. (See accompanying file |
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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#ifndef BOOST_XPRESSIVE_DETAIL_STATIC_COMPILE_HPP_EAN_10_04_2005 |
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#define BOOST_XPRESSIVE_DETAIL_STATIC_COMPILE_HPP_EAN_10_04_2005 |
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// MS compatible compilers support #pragma once |
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#if defined(_MSC_VER) && (_MSC_VER >= 1020) |
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# pragma once |
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#endif |
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#include <boost/mpl/bool.hpp> |
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#include <boost/iterator/iterator_traits.hpp> |
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#include <boost/proto/core.hpp> |
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#include <boost/xpressive/regex_traits.hpp> |
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#include <boost/xpressive/detail/core/regex_impl.hpp> |
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#include <boost/xpressive/detail/core/linker.hpp> |
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#include <boost/xpressive/detail/core/optimize.hpp> |
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#include <boost/xpressive/detail/core/adaptor.hpp> |
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#include <boost/xpressive/detail/core/matcher/end_matcher.hpp> |
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#include <boost/xpressive/detail/static/static.hpp> |
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#include <boost/xpressive/detail/static/visitor.hpp> |
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#include <boost/xpressive/detail/static/grammar.hpp> |
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namespace boost { namespace xpressive { namespace detail |
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{ |
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/////////////////////////////////////////////////////////////////////////////// |
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// static_compile_impl2 |
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template<typename Xpr, typename BidiIter, typename Traits> |
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void static_compile_impl2(Xpr const &xpr, shared_ptr<regex_impl<BidiIter> > const &impl, Traits const &tr) |
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{ |
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typedef typename iterator_value<BidiIter>::type char_type; |
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impl->tracking_clear(); |
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impl->traits_ = new traits_holder<Traits>(tr); |
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// "compile" the regex and wrap it in an xpression_adaptor. |
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typedef xpression_visitor<BidiIter, mpl::false_, Traits> visitor_type; |
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visitor_type visitor(tr, impl); |
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intrusive_ptr<matchable_ex<BidiIter> const> adxpr = make_adaptor<matchable_ex<BidiIter> >( |
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typename Grammar<char_type>::template impl<Xpr const &, end_xpression, visitor_type &>()( |
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xpr |
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, end_xpression() |
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, visitor |
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) |
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); |
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// Link and optimize the regex |
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common_compile(adxpr, *impl, visitor.traits()); |
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// References changed, update dependencies. |
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impl->tracking_update(); |
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} |
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/////////////////////////////////////////////////////////////////////////////// |
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// pattern for imbued regexes. |
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struct XpressiveLocaleModifier |
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: proto::binary_expr< |
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modifier_tag |
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, proto::terminal<locale_modifier<proto::_> > |
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, proto::_ |
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> |
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{}; |
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/////////////////////////////////////////////////////////////////////////////// |
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// static_compile_impl1 |
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template<typename Xpr, typename BidiIter> |
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typename disable_if<proto::matches<Xpr, XpressiveLocaleModifier> >::type |
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static_compile_impl1(Xpr const &xpr, shared_ptr<regex_impl<BidiIter> > const &impl) |
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{ |
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// use default traits |
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typedef typename iterator_value<BidiIter>::type char_type; |
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typedef typename default_regex_traits<char_type>::type traits_type; |
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traits_type tr; |
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static_compile_impl2(xpr, impl, tr); |
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} |
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/////////////////////////////////////////////////////////////////////////////// |
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// static_compile_impl1 |
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template<typename Xpr, typename BidiIter> |
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typename enable_if<proto::matches<Xpr, XpressiveLocaleModifier> >::type |
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static_compile_impl1(Xpr const &xpr, shared_ptr<regex_impl<BidiIter> > const &impl) |
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{ |
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// use specified traits |
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typedef typename proto::result_of::value<typename proto::result_of::left<Xpr>::type>::type::locale_type locale_type; |
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typedef typename regex_traits_type<locale_type, BidiIter>::type traits_type; |
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static_compile_impl2(proto::right(xpr), impl, traits_type(proto::value(proto::left(xpr)).getloc())); |
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} |
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/////////////////////////////////////////////////////////////////////////////// |
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// static_compile |
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template<typename Xpr, typename BidiIter> |
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void static_compile(Xpr const &xpr, shared_ptr<regex_impl<BidiIter> > const &impl) |
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{ |
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static_compile_impl1(xpr, impl); |
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} |
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}}} // namespace boost::xpressive::detail |
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#endif
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