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Commit3375ab7

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author
mikhail_beris
committed
Implementing to_lower transformation.
1 parent9e2824e commit3375ab7

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3 files changed

+95
-1
lines changed

3 files changed

+95
-1
lines changed

‎boost/network/message/transformers.hpp

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*/
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#include<boost/network/message/transformers/selectors.hpp>
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#include<boost/network/message/transformers/to_upper.hpp>
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#include<boost/network/message/transformers/to_lower.hpp>
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#include<boost/type_traits.hpp>
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// Copyright Dean Michael Berris 2007.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef __NETWORK_MESSAGE_TRANSFORMERS_TO_LOWER_HPP__
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#define__NETWORK_MESSAGE_TRANSFORMERS_TO_LOWER_HPP__
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#include<boost/algorithm/string.hpp>
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/** to_lower.hpp
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*
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* Implements the to_lower transformer. This applies
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* the to_lower string algorithm to a string, which
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* is selected by the appropriate selector.
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*
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* This defines a type, to be applied using template
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* metaprogramming on the selected string target.
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*/
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namespaceboost {namespacenetwork {
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namespaceimpl {
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template<classSelector>
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structto_lower_transformer { };
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template<>
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structto_lower_transformer<selectors::source_selector> {
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template<classTag>
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voidoperator() (basic_message<Tag> & message_)const {
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boost::to_lower(message_.source());
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};
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protected:
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~to_lower_transformer() { };
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};
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template<>
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structto_lower_transformer<selectors::destination_selector> {
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template<classTag>
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voidoperator() (basic_message<Tag> & message_)const {
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boost::to_lower(message_.destination());
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};
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protected:
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~to_lower_transformer() { };
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};
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};// namespace impl
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namespacedetail {
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structto_lower_placeholder_helper;
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};
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detail::to_lower_placeholder_helperto_lower_(detail::to_lower_placeholder_helper);
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namespacedetail {
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structto_lower_placeholder_helper {
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template<classSelector>
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structtype :publicimpl::to_lower_transformer<Selector> { };
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private:
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to_lower_placeholder_helper() {};
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to_lower_placeholder_helper(to_lower_placeholder_helperconst &) {};
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friend to_lower_placeholder_helperboost::network::to_lower_(to_lower_placeholder_helper);
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};
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};
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typedefdetail::to_lower_placeholder_helper (*to_lower_placeholder)(detail::to_lower_placeholder_helper);
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inline detail::to_lower_placeholder_helperto_lower_(detail::to_lower_placeholder_helper) {
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returndetail::to_lower_placeholder_helper();
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};
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};// namespace network
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};// namespace boost
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#endif// __NETWORK_MESSAGE_TRANSFORMERS_TO_LOWER_HPP__
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‎libs/network/test/message_transform_test.cpp

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#include<boost/network.hpp>
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#include<algorithm>
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BOOST_AUTO_TEST_CASE (message_transform_tolower ) {
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BOOST_AUTO_TEST_CASE (message_transform_toupper ) {
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usingnamespaceboost::network;
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message msg;
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msg <<transform(to_upper_, source_);
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BOOST_CHECK_EQUAL (source(msg),"ME" );
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};
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BOOST_AUTO_TEST_CASE ( message_transform_tolower ) {
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usingnamespaceboost::network;
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message msg;
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msg <<source("ME");
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BOOST_CHECK_EQUAL (source(msg),"ME" );
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msg <<transform(to_lower_, source_);
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BOOST_CHECK_EQUAL (source(msg),"me" );
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};
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