mirror of
https://github.com/g4klx/DAPNETGateway.git
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89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
/*
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* Copyright (C) 2016,2017 by Jonathan Naylor G4KLX
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*
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* Contributed by Simon G7RZU
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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 Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "REGEX.h"
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#include "Log.h"
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#include <cstdio>
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#include <cstring>
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CREGEX::CREGEX(const std::string& regexFile) :
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m_regexFile(regexFile),
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m_regex()
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{
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}
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bool CREGEX::load()
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/* Older versions of GCC appear to support REGEX but silently fail to match. Even
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* though the headers exist and the code compiles and runs cleanly. The below #if block
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* stops the REGEXs being loaded in these cases, effectively disabling REGEX functionality.
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* The loading code is replaced with a log entry to show the user this has happened.
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*/
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{
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#if defined(__GNUC__) && (__GNUC__ <= 4) || (__GNUC__ == 4 && __GNUC_MINOR__ <= 9)
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LogError("REGEX is not properly supported in GCC vesions below 4.9. Not loading REGEX");
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return false;
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}
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#else
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FILE* fp = ::fopen(m_regexFile.c_str(), "rt");
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if (fp != NULL) {
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char buffer[100U];
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std::regex regex;
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while (::fgets(buffer, 100U, fp) != NULL) {
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if (buffer[0U] == '#')
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continue;
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const char* regexStr = ::strtok(buffer, "\r\n");
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if (regexStr != NULL) {
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try {
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regex = std::regex(regexStr);
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}
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catch(const std::regex_error& e) {
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LogDebug("error in regex %s (%s), skipping",regexStr,e.what());
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continue;
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}
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m_regex.push_back(regex);
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}
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}
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::fclose(fp);
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}
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size_t size = m_regex.size();
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LogInfo("Loaded %u REGEX from file %s", size, m_regexFile.c_str());
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size = m_regex.size();
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if (size == 0U)
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return false;
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return true;
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}
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#endif
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std::vector<std::regex> CREGEX::get()
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{
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return(m_regex);
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}
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