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- /*
- * Copyright Andrey Semashev 2007 - 2015.
- * 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)
- */
- /*!
- * \file formatters/xml_decorator.hpp
- * \author Andrey Semashev
- * \date 18.11.2012
- *
- * The header contains implementation of a XML-style character decorator.
- */
- #ifndef BOOST_LOG_EXPRESSIONS_FORMATTERS_XML_DECORATOR_HPP_INCLUDED_
- #define BOOST_LOG_EXPRESSIONS_FORMATTERS_XML_DECORATOR_HPP_INCLUDED_
- #include <boost/range/iterator_range_core.hpp>
- #include <boost/log/detail/config.hpp>
- #include <boost/log/expressions/formatters/char_decorator.hpp>
- #include <boost/log/detail/header.hpp>
- #ifdef BOOST_HAS_PRAGMA_ONCE
- #pragma once
- #endif
- namespace boost {
- BOOST_LOG_OPEN_NAMESPACE
- namespace expressions {
- namespace aux {
- template< typename >
- struct xml_decorator_traits;
- #ifdef BOOST_LOG_USE_CHAR
- template< >
- struct xml_decorator_traits< char >
- {
- static boost::iterator_range< const char* const* > get_patterns()
- {
- static const char* const patterns[] =
- {
- "&", "<", ">", "\"", "'"
- };
- return boost::make_iterator_range(patterns);
- }
- static boost::iterator_range< const char* const* > get_replacements()
- {
- static const char* const replacements[] =
- {
- "&", "<", ">", """, "'"
- };
- return boost::make_iterator_range(replacements);
- }
- };
- #endif // BOOST_LOG_USE_CHAR
- #ifdef BOOST_LOG_USE_WCHAR_T
- template< >
- struct xml_decorator_traits< wchar_t >
- {
- static boost::iterator_range< const wchar_t* const* > get_patterns()
- {
- static const wchar_t* const patterns[] =
- {
- L"&", L"<", L">", L"\"", L"'"
- };
- return boost::make_iterator_range(patterns);
- }
- static boost::iterator_range< const wchar_t* const* > get_replacements()
- {
- static const wchar_t* const replacements[] =
- {
- L"&", L"<", L">", L""", L"'"
- };
- return boost::make_iterator_range(replacements);
- }
- };
- #endif // BOOST_LOG_USE_WCHAR_T
- template< typename CharT >
- struct xml_decorator_gen
- {
- typedef CharT char_type;
- template< typename SubactorT >
- BOOST_FORCEINLINE char_decorator_actor< SubactorT, pattern_replacer< char_type > > operator[] (SubactorT const& subactor) const
- {
- typedef xml_decorator_traits< char_type > traits_type;
- typedef pattern_replacer< char_type > replacer_type;
- typedef char_decorator_actor< SubactorT, replacer_type > result_type;
- typedef typename result_type::terminal_type terminal_type;
- typename result_type::base_type act = {{ terminal_type(subactor, replacer_type(traits_type::get_patterns(), traits_type::get_replacements())) }};
- return result_type(act);
- }
- };
- } // namespace aux
- /*!
- * XML-style decorator generator object. The decorator replaces characters that have special meaning
- * in XML documents with the corresponding decorated counterparts. The generator provides
- * <tt>operator[]</tt> that can be used to construct the actual decorator. For example:
- *
- * <code>
- * xml_decor[ stream << attr< std::string >("MyAttr") ]
- * </code>
- *
- * For wide-character formatting there is the similar \c wxml_decor decorator generator object.
- */
- #ifdef BOOST_LOG_USE_CHAR
- const aux::xml_decorator_gen< char > xml_decor = {};
- #endif
- #ifdef BOOST_LOG_USE_WCHAR_T
- const aux::xml_decorator_gen< wchar_t > wxml_decor = {};
- #endif
- /*!
- * The function creates an XML-style decorator generator for arbitrary character type.
- */
- template< typename CharT >
- BOOST_FORCEINLINE aux::xml_decorator_gen< CharT > make_xml_decor()
- {
- return aux::xml_decorator_gen< CharT >();
- }
- } // namespace expressions
- BOOST_LOG_CLOSE_NAMESPACE // namespace log
- } // namespace boost
- #include <boost/log/detail/footer.hpp>
- #endif // BOOST_LOG_EXPRESSIONS_FORMATTERS_XML_DECORATOR_HPP_INCLUDED_
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