| // Copyright (c) 2001-2010 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_KARMA_STRING_GENERATE_FEB_23_2007_1232PM) |
| #define BOOST_SPIRIT_KARMA_STRING_GENERATE_FEB_23_2007_1232PM |
| |
| #if defined(_MSC_VER) |
| #pragma once |
| #endif |
| |
| #include <string> |
| #include <boost/spirit/home/support/char_class.hpp> |
| #include <boost/spirit/home/karma/detail/generate_to.hpp> |
| #include <boost/range/const_iterator.hpp> |
| |
| namespace boost { namespace spirit { namespace karma { namespace detail |
| { |
| /////////////////////////////////////////////////////////////////////////// |
| // pass through character transformation |
| struct pass_through_filter |
| { |
| template <typename Char> |
| Char operator()(Char ch) const |
| { |
| return ch; |
| } |
| }; |
| |
| template <typename CharEncoding, typename Tag> |
| struct encoding_filter |
| { |
| template <typename Char> |
| Char operator()(Char ch) const |
| { |
| return spirit::char_class::convert<CharEncoding>::to(Tag(), ch); |
| } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // generate a string given by a std::string, applying the given filter |
| template <typename OutputIterator, typename Char, typename Filter> |
| inline bool string_generate(OutputIterator& sink, Char const* str |
| , Filter filter) |
| { |
| for (Char ch = *str; ch != 0; ch = *++str) |
| { |
| *sink = filter(ch); |
| ++sink; |
| } |
| return detail::sink_is_good(sink); |
| } |
| |
| template <typename OutputIterator, typename Container, typename Filter> |
| inline bool string_generate(OutputIterator& sink |
| , Container const& c, Filter filter) |
| { |
| typedef typename traits::container_iterator<Container const>::type |
| iterator; |
| |
| iterator end = boost::end(c); |
| for (iterator it = boost::begin(c); it != end; ++it) |
| { |
| *sink = filter(*it); |
| ++sink; |
| } |
| return detail::sink_is_good(sink); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // generate a string without any transformation |
| template <typename OutputIterator, typename Char> |
| inline bool string_generate(OutputIterator& sink, Char const* str) |
| { |
| return string_generate(sink, str, pass_through_filter()); |
| } |
| |
| template <typename OutputIterator, typename Char, typename Traits |
| , typename Allocator> |
| inline bool string_generate(OutputIterator& sink |
| , std::basic_string<Char, Traits, Allocator> const& str) |
| { |
| return string_generate(sink, str.c_str(), pass_through_filter()); |
| } |
| |
| template <typename OutputIterator, typename Container> |
| inline bool string_generate(OutputIterator& sink |
| , Container const& c) |
| { |
| return string_generate(sink, c, pass_through_filter()); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // generate a string given by a pointer, converting according using a |
| // given character class and case tag |
| template <typename OutputIterator, typename Char, typename CharEncoding |
| , typename Tag> |
| inline bool string_generate(OutputIterator& sink |
| , Char const* str |
| , CharEncoding, Tag) |
| { |
| return string_generate(sink, str, encoding_filter<CharEncoding, Tag>()); |
| } |
| |
| template <typename OutputIterator, typename Char |
| , typename CharEncoding, typename Tag |
| , typename Traits, typename Allocator> |
| inline bool string_generate(OutputIterator& sink |
| , std::basic_string<Char, Traits, Allocator> const& str |
| , CharEncoding, Tag) |
| { |
| return string_generate(sink, str.c_str() |
| , encoding_filter<CharEncoding, Tag>()); |
| } |
| |
| template <typename OutputIterator, typename Container |
| , typename CharEncoding, typename Tag> |
| inline bool |
| string_generate(OutputIterator& sink |
| , Container const& c |
| , CharEncoding, Tag) |
| { |
| return string_generate(sink, c, encoding_filter<CharEncoding, Tag>()); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////// |
| template <typename OutputIterator, typename Char> |
| inline bool string_generate(OutputIterator& sink |
| , Char const* str |
| , unused_type, unused_type) |
| { |
| return string_generate(sink, str, pass_through_filter()); |
| } |
| |
| template <typename OutputIterator, typename Char, typename Traits |
| , typename Allocator> |
| inline bool string_generate(OutputIterator& sink |
| , std::basic_string<Char, Traits, Allocator> const& str |
| , unused_type, unused_type) |
| { |
| return string_generate(sink, str.c_str(), pass_through_filter()); |
| } |
| |
| template <typename OutputIterator, typename Container> |
| inline bool string_generate(OutputIterator& sink |
| , Container const& c |
| , unused_type, unused_type) |
| { |
| return string_generate(sink, c, pass_through_filter()); |
| } |
| |
| }}}} |
| |
| #endif |