72 lines
1.4 KiB
C++
72 lines
1.4 KiB
C++
///////////////////////////////////////////////////////////////
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// Copyright 2015 John Maddock. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_
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//
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#ifdef TEST_RE2
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#include "performance.hpp"
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#include <boost/scoped_ptr.hpp>
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#include <re2.h>
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using namespace re2;
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struct re2_regex : public abstract_regex
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{
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private:
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boost::scoped_ptr<RE2> pat;
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public:
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re2_regex() {}
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~re2_regex(){}
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virtual bool set_expression(const char* pp, bool isperl)
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{
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if(!isperl)
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return false;
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std::string s("(?m)");
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s += pp;
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pat.reset(new RE2(s));
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return pat->ok();
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}
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virtual bool match_test(const char* text);
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virtual unsigned find_all(const char* text);
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virtual std::string name();
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struct initializer
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{
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initializer()
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{
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re2_regex::register_instance(boost::shared_ptr<abstract_regex>(new re2_regex));
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}
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void do_nothing()const {}
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};
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static const initializer init;
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};
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const re2_regex::initializer re2_regex::init;
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bool re2_regex::match_test(const char * text)
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{
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return RE2::FullMatch(text, *pat);
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}
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unsigned re2_regex::find_all(const char * text)
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{
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unsigned count = 0;
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StringPiece input(text);
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while(RE2::FindAndConsume(&input, *pat))
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{
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++count;
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}
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return count;
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}
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std::string re2_regex::name()
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{
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init.do_nothing();
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return "RE2";
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}
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#endif
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