File indexing completed on 2024-04-14 05:37:12

 /*
     SPDX-FileCopyrightText: 2002-2004 Otto Bruggeman <otto.bruggeman@home.nl>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "cvsdiffparser.h"
 
 // lib
 #include "modellist.h"
 #include <komparediff2_logging.h>
 // Qt
 #include <QRegularExpression>
 
 using namespace KompareDiff2;
 
 CVSDiffParser::CVSDiffParser(const ModelList *list, const QStringList &diff)
     : ParserBase(list, diff)
 {
     // The regexps needed for context cvs diff parsing, the rest is the same as in parserbase.cpp
     // third capture in header1 is non optional for cvs diff, it is the revision
     m_contextDiffHeader1.setPattern(QRegularExpression::anchoredPattern(QStringLiteral("\\*\\*\\* ([^\\t]+)\\t([^\\t]+)\\t(.*)\\n")));
     m_contextDiffHeader2.setPattern(QRegularExpression::anchoredPattern(QStringLiteral("--- ([^\\t]+)\\t([^\\t]+)(|\\t(.*))\\n")));
 
     m_normalDiffHeader.setPattern(QRegularExpression::anchoredPattern(QStringLiteral("Index: (.*)\\n")));
 }
 
 CVSDiffParser::~CVSDiffParser() = default;
 
 Format CVSDiffParser::determineFormat()
 {
     //     qCDebug(KOMPAREDIFF2_LOG) << "Determining the format of the CVSDiff";
 
     QRegularExpression normalRE(QStringLiteral("[0-9]+[0-9,]*[acd][0-9]+[0-9,]*"));
     QRegularExpression unifiedRE(QStringLiteral("^--- [^\\t]+\\t"));
     QRegularExpression contextRE(QStringLiteral("^\\*\\*\\* [^\\t]+\\t"));
     QRegularExpression rcsRE(QStringLiteral("^[acd][0-9]+ [0-9]+"));
     QRegularExpression edRE(QStringLiteral("^[0-9]+[0-9,]*[acd]"));
 
     for (const QString &diffLine : std::as_const(m_diffLines)) {
         if (diffLine.indexOf(normalRE, 0) == 0) {
 //             qCDebug(KOMPAREDIFF2_LOG) << "Difflines are from a Normal diff...";
             return Normal;
         }
         if (diffLine.indexOf(unifiedRE, 0) == 0) {
 //             qCDebug(KOMPAREDIFF2_LOG) << "Difflines are from a Unified diff...";
             return Unified;
         }
         if (diffLine.indexOf(contextRE, 0) == 0) {
 //             qCDebug(KOMPAREDIFF2_LOG) << "Difflines are from a Context diff...";
             return Context;
         }
         if (diffLine.indexOf(rcsRE, 0) == 0) {
 //             qCDebug(KOMPAREDIFF2_LOG) << "Difflines are from a RCS diff...";
             return RCS;
         }
         if (diffLine.indexOf(edRE, 0) == 0) {
 //             qCDebug(KOMPAREDIFF2_LOG) << "Difflines are from an ED diff...";
             return Ed;
         }
     }
     //     qCDebug(KOMPAREDIFF2_LOG) << "Difflines are from an unknown diff...";
     return UnknownFormat;
 }
 
 bool CVSDiffParser::parseNormalDiffHeader()
 {
     qCDebug(KOMPAREDIFF2_LOG) << "CVSDiffParser::parseNormalDiffHeader()";
     bool result = false;
 
     QStringList::ConstIterator diffEnd = m_diffLines.end();
 
     while (m_diffIterator != diffEnd) {
         const auto normalDiffHeaderMatch = m_normalDiffHeader.match(*m_diffIterator);
         if (normalDiffHeaderMatch.hasMatch()) {
             qCDebug(KOMPAREDIFF2_LOG) << "Matched length Header = " << normalDiffHeaderMatch.capturedLength();
             qCDebug(KOMPAREDIFF2_LOG) << "Matched string Header = " << normalDiffHeaderMatch.captured(0);
 
             m_currentModel = new DiffModel();
             m_currentModel->setSourceFile(normalDiffHeaderMatch.captured(1));
             m_currentModel->setDestinationFile(normalDiffHeaderMatch.captured(1));
 
             result = true;
 
             ++m_diffIterator;
             break;
         } else {
             qCDebug(KOMPAREDIFF2_LOG) << "No match for: " << (*m_diffIterator);
         }
         ++m_diffIterator;
     }
 
     if (result == false) {
         // Set this to the first line again and hope it is a single file diff
         m_diffIterator = m_diffLines.begin();
         m_currentModel = new DiffModel();
         m_singleFileDiff = true;
     }
 
     return result;
 }
 
 bool CVSDiffParser::parseEdDiffHeader()
 {
     return false;
 }
 
 bool CVSDiffParser::parseRCSDiffHeader()
 {
     return false;
 }
 
 bool CVSDiffParser::parseEdHunkHeader()
 {
     return false;
 }
 
 bool CVSDiffParser::parseRCSHunkHeader()
 {
     return false;
 }
 
 bool CVSDiffParser::parseEdHunkBody()
 {
     return false;
 }
 
 bool CVSDiffParser::parseRCSHunkBody()
 {
     return false;
 }