103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
/***************************************************************************
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* Copyright (C) 2008-2012 by Andrzej Rybczak *
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* electricityispower@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include <cassert>
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#include "regexes.h"
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Regex::Regex() : m_cflags(0), m_compiled(false) { }
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Regex::Regex(const std::string ®ex_, int cflags)
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: m_regex(regex_), m_cflags(cflags), m_compiled(false)
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{
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compile();
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}
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Regex::Regex (const Regex &rhs)
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: m_regex(rhs.m_regex), m_cflags(rhs.m_cflags), m_compiled(false)
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{
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if (rhs.m_compiled)
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compile();
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}
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Regex::~Regex()
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{
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if (m_compiled)
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regfree(&m_rx);
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}
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const std::string &Regex::regex() const
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{
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return m_regex;
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}
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const std::string &Regex::error() const
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{
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return m_error;
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}
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bool Regex::compiled() const
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{
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return m_compiled;
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}
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bool Regex::compile()
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{
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if (m_compiled)
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{
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m_error.clear();
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regfree(&m_rx);
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}
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int comp_res = regcomp(&m_rx, m_regex.c_str(), m_cflags);
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bool result = true;
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if (comp_res != 0)
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{
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char buf[256];
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regerror(comp_res, &m_rx, buf, sizeof(buf));
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m_error = buf;
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result = false;
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}
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m_compiled = result;
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return result;
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}
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bool Regex::compile(const std::string ®ex_, int cflags)
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{
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m_regex = regex_;
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m_cflags = cflags;
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return compile();
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}
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bool Regex::match(const std::string &s) const
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{
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assert(m_compiled);
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return regexec(&m_rx, s.c_str(), 0, 0, 0) == 0;
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}
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Regex &Regex::operator=(const Regex &rhs)
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{
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if (this == &rhs)
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return *this;
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m_regex = rhs.m_regex;
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m_cflags = rhs.m_cflags;
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if (rhs.m_compiled)
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compile();
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return *this;
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}
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