summaryrefslogtreecommitdiff
path: root/boost/metaparse/v1/impl/skip_seq.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'boost/metaparse/v1/impl/skip_seq.hpp')
-rw-r--r--boost/metaparse/v1/impl/skip_seq.hpp74
1 files changed, 74 insertions, 0 deletions
diff --git a/boost/metaparse/v1/impl/skip_seq.hpp b/boost/metaparse/v1/impl/skip_seq.hpp
new file mode 100644
index 0000000000..4d7e5b138a
--- /dev/null
+++ b/boost/metaparse/v1/impl/skip_seq.hpp
@@ -0,0 +1,74 @@
+#ifndef BOOST_METAPARSE_V1_IMPL_SKIP_SEQ_HPP
+#define BOOST_METAPARSE_V1_IMPL_SKIP_SEQ_HPP
+
+// Copyright Abel Sinkovics (abel@sinkovics.hu) 2013.
+// 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)
+
+#include <boost/metaparse/v1/is_error.hpp>
+#include <boost/metaparse/v1/accept.hpp>
+#include <boost/metaparse/v1/get_remaining.hpp>
+#include <boost/metaparse/v1/get_position.hpp>
+#include <boost/metaparse/v1/get_result.hpp>
+
+namespace boost
+{
+ namespace metaparse
+ {
+ namespace v1
+ {
+ namespace impl
+ {
+ struct skip_seq
+ {
+ private:
+ template <class ParsingResult, class NewResultValue>
+ struct change_result :
+ accept<
+ NewResultValue,
+ typename get_remaining<ParsingResult>::type,
+ typename get_position<ParsingResult>::type
+ >
+ {};
+
+ template <class Result, class P>
+ struct apply_unchecked :
+ boost::mpl::eval_if<
+ typename is_error<
+ typename P::template apply<
+ typename get_remaining<Result>::type,
+ typename get_position<Result>::type
+ >
+ >::type,
+ typename P::template apply<
+ typename get_remaining<Result>::type,
+ typename get_position<Result>::type
+ >,
+ change_result<
+ typename P::template apply<
+ typename get_remaining<Result>::type,
+ typename get_position<Result>::type
+ >,
+ typename get_result<Result>::type
+ >
+ >
+ {};
+
+ public:
+ template <class Result, class P>
+ struct apply :
+ boost::mpl::eval_if<
+ is_error<Result>,
+ Result,
+ apply_unchecked<Result, P>
+ >
+ {};
+ };
+ }
+ }
+ }
+}
+
+#endif
+