95 lines
2.9 KiB
C++
95 lines
2.9 KiB
C++
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// RegExp.cc for Fluxbox Window Manager
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// Copyright (c) 2003 Henrik Kinnunen (fluxgen at users.sourceforge.net)
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// and Simon Bowden (rathnor at users.sourceforge.net)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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// $Id: RegExp.cc,v 1.1 2003/06/12 15:12:19 rathnor Exp $
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#include "RegExp.hh"
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//use GNU extensions
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif // _GNU_SOURCE
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#include <string>
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#include <iostream>
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using namespace std;
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/********************************************************
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* RegExp *
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***********/
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// full_match is to say if we match on this regexp using the full string
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// or just a substring. Substrings aren't supported if not HAVE_REGEXP
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RegExp::RegExp(const std::string &str, bool full_match):
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#ifdef USE_REGEXP
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m_regex(0) {
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string match;
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if (full_match) {
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match = "^";
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match.append(str);
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match.append("$");
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} else {
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match = str;
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}
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m_regex = new regex_t;
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int ret = regcomp(m_regex, match.c_str(), REG_NOSUB | REG_EXTENDED);
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if (ret != 0) {
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char *errstr = 0;
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// gives us the length of the string
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unsigned int size = regerror(ret, m_regex, errstr, 0);
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errstr = new char[size];
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regerror(ret, m_regex, errstr, size);
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cerr<<"Error parsing regular expression: "<<errstr<<endl;
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delete [] errstr;
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delete m_regex; // I don't think I regfree a failed compile?
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m_regex = 0;
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}
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}
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#else // notdef USE_REGEXP
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m_str(str) {}
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#endif // USE_REGEXP
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RegExp::~RegExp() {
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#ifdef USE_REGEXP
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if (m_regex != 0) {
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regfree(m_regex);
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delete m_regex;
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}
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#endif // USE_REGEXP
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}
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bool RegExp::match(const std::string &str) {
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#ifdef USE_REGEXP
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if (m_regex)
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return (regexec(m_regex, str.c_str(), 0, 0, 0) == 0);
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else
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return false;
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#else // notdef USE_REGEXP
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return (m_str == str);
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#endif // USE_REGEXP
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}
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