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-rw-r--r--3rdParty/Boost/src/boost/spirit/home/classic/core/composite/alternative.hpp147
1 files changed, 147 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/spirit/home/classic/core/composite/alternative.hpp b/3rdParty/Boost/src/boost/spirit/home/classic/core/composite/alternative.hpp
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+++ b/3rdParty/Boost/src/boost/spirit/home/classic/core/composite/alternative.hpp
@@ -0,0 +1,147 @@
+/*=============================================================================
+ Copyright (c) 1998-2003 Joel de Guzman
+ Copyright (c) 2001 Daniel Nuffer
+ Copyright (c) 2002 Hartmut Kaiser
+ http://spirit.sourceforge.net/
+
+ 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_ALTERNATIVE_HPP)
+#define BOOST_SPIRIT_ALTERNATIVE_HPP
+
+#include <boost/spirit/home/classic/namespace.hpp>
+#include <boost/spirit/home/classic/core/parser.hpp>
+#include <boost/spirit/home/classic/core/primitives/primitives.hpp>
+#include <boost/spirit/home/classic/core/composite/composite.hpp>
+#include <boost/spirit/home/classic/meta/as_parser.hpp>
+
+namespace boost { namespace spirit {
+
+BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN
+
+ ///////////////////////////////////////////////////////////////////////////
+ //
+ // alternative class
+ //
+ // Handles expressions of the form:
+ //
+ // a | b
+ //
+ // where a and b are parsers. The expression returns a composite
+ // parser that matches a or b. One (not both) of the operands may
+ // be a literal char, wchar_t or a primitive string char const*,
+ // wchar_t const*.
+ //
+ // The expression is short circuit evaluated. b is never touched
+ // when a is returns a successful match.
+ //
+ ///////////////////////////////////////////////////////////////////////////
+ struct alternative_parser_gen;
+
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(push)
+#pragma warning(disable:4512) //assignment operator could not be generated
+#endif
+
+ template <typename A, typename B>
+ struct alternative
+ : public binary<A, B, parser<alternative<A, B> > >
+ {
+ typedef alternative<A, B> self_t;
+ typedef binary_parser_category parser_category_t;
+ typedef alternative_parser_gen parser_generator_t;
+ typedef binary<A, B, parser<self_t> > base_t;
+
+ alternative(A const& a, B const& b)
+ : base_t(a, b) {}
+
+ template <typename ScannerT>
+ typename parser_result<self_t, ScannerT>::type
+ parse(ScannerT const& scan) const
+ {
+ typedef typename parser_result<self_t, ScannerT>::type result_t;
+ typedef typename ScannerT::iterator_t iterator_t;
+ { // scope for save
+ iterator_t save = scan.first;
+ if (result_t hit = this->left().parse(scan))
+ return hit;
+ scan.first = save;
+ }
+ return this->right().parse(scan);
+ }
+ };
+
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(pop)
+#endif
+
+ struct alternative_parser_gen
+ {
+ template <typename A, typename B>
+ struct result
+ {
+ typedef
+ alternative<
+ typename as_parser<A>::type
+ , typename as_parser<B>::type
+ >
+ type;
+ };
+
+ template <typename A, typename B>
+ static alternative<
+ typename as_parser<A>::type
+ , typename as_parser<B>::type
+ >
+ generate(A const& a, B const& b)
+ {
+ return alternative<BOOST_DEDUCED_TYPENAME as_parser<A>::type,
+ BOOST_DEDUCED_TYPENAME as_parser<B>::type>
+ (as_parser<A>::convert(a), as_parser<B>::convert(b));
+ }
+ };
+
+ template <typename A, typename B>
+ alternative<A, B>
+ operator|(parser<A> const& a, parser<B> const& b);
+
+ template <typename A>
+ alternative<A, chlit<char> >
+ operator|(parser<A> const& a, char b);
+
+ template <typename B>
+ alternative<chlit<char>, B>
+ operator|(char a, parser<B> const& b);
+
+ template <typename A>
+ alternative<A, strlit<char const*> >
+ operator|(parser<A> const& a, char const* b);
+
+ template <typename B>
+ alternative<strlit<char const*>, B>
+ operator|(char const* a, parser<B> const& b);
+
+ template <typename A>
+ alternative<A, chlit<wchar_t> >
+ operator|(parser<A> const& a, wchar_t b);
+
+ template <typename B>
+ alternative<chlit<wchar_t>, B>
+ operator|(wchar_t a, parser<B> const& b);
+
+ template <typename A>
+ alternative<A, strlit<wchar_t const*> >
+ operator|(parser<A> const& a, wchar_t const* b);
+
+ template <typename B>
+ alternative<strlit<wchar_t const*>, B>
+ operator|(wchar_t const* a, parser<B> const& b);
+
+BOOST_SPIRIT_CLASSIC_NAMESPACE_END
+
+}} // namespace BOOST_SPIRIT_CLASSIC_NS
+
+#endif
+
+#include <boost/spirit/home/classic/core/composite/impl/alternative.ipp>