// RegExp.cc for Fluxbox Window Manager // Copyright (c) 2003 Henrik Kinnunen (fluxgen at users.sourceforge.net) // and Simon Bowden (rathnor at users.sourceforge.net) // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. // $Id: RegExp.cc,v 1.2 2003/06/13 11:43:46 fluxgen Exp $ #include "RegExp.hh" //use GNU extensions #ifndef _GNU_SOURCE #define _GNU_SOURCE #endif // _GNU_SOURCE #include <string> #include <iostream> using namespace std; /******************************************************** * RegExp * ***********/ // full_match is to say if we match on this regexp using the full string // or just a substring. Substrings aren't supported if not HAVE_REGEXP RegExp::RegExp(const std::string &str, bool full_match): #ifdef USE_REGEXP m_regex(0) { string match; if (full_match) { match = "^"; match.append(str); match.append("$"); } else { match = str; } m_regex = new regex_t; int ret = regcomp(m_regex, match.c_str(), REG_NOSUB | REG_EXTENDED); if (ret != 0) { char *errstr = 0; // gives us the length of the string unsigned int size = regerror(ret, m_regex, errstr, 0); errstr = new char[size]; regerror(ret, m_regex, errstr, size); cerr<<"Error parsing regular expression: "<<errstr<<endl; delete [] errstr; delete m_regex; // I don't think I regfree a failed compile? m_regex = 0; } } #else // notdef USE_REGEXP m_str(str) {} #endif // USE_REGEXP RegExp::~RegExp() { #ifdef USE_REGEXP if (m_regex != 0) { regfree(m_regex); delete m_regex; } #endif // USE_REGEXP } bool RegExp::match(const std::string &str) const { #ifdef USE_REGEXP if (m_regex) return regexec(m_regex, str.c_str(), 0, 0, 0) == 0; else return false; #else // notdef USE_REGEXP return (m_str == str); #endif // USE_REGEXP } bool RegExp::error() const { #ifdef USE_REGEXP return m_regex == 0; #else return return m_str == ""; #endif // USE_REGEXP }