1 #ifndef BOOST_METAPARSE_V1_UTIL_IS_LCASE_LETTER_HPP 2 #define BOOST_METAPARSE_V1_UTIL_IS_LCASE_LETTER_HPP 3 4 // Copyright Abel Sinkovics (abel@sinkovics.hu) 2009 - 2010. 5 // Distributed under the Boost Software License, Version 1.0. 6 // (See accompanying file LICENSE_1_0.txt or copy at 7 // http://www.boost.org/LICENSE_1_0.txt) 8 9 #include <boost/metaparse/v1/util/in_range_c.hpp> 10 11 #include <boost/mpl/vector.hpp> 12 13 namespace boost 14 { 15 namespace metaparse 16 { 17 namespace v1 18 { 19 namespace util 20 { 21 template <class C = boost::mpl::na> 22 struct is_lcase_letter : in_range_c<char, 'a', 'z'>::apply<C> {}; 23 24 template <> 25 struct is_lcase_letter<boost::mpl::na> 26 { 27 typedef is_lcase_letter type; 28 29 template <class C = boost::mpl::na> 30 struct apply : is_lcase_letter<C> {}; 31 }; 32 } 33 } 34 } 35 } 36 37 #endif 38 39