File indexing completed on 2024-04-21 09:42:37

 /*
  *  SPDX-FileCopyrightText: 2002-2003 Jesper K. Pedersen <blackie@kde.org>
  *  SPDX-FileCopyrightText: 2011 Morten A. B. Sjøgren <m_abs@mabs.dk>
  *
  *  SPDX-License-Identifier: LGPL-2.0-only
  **/
 
 #include "qtregexphighlighter.h"
 
 #include <QRegularExpression>
 #include <QTextEdit>
 
 // krazy:excludeall=qclasses
 
 QtRegexpHighlighter::QtRegexpHighlighter(QTextEdit *editor)
     : RegexpHighlighter(editor)
     , _editor(editor)
 {
 }
 
 void QtRegexpHighlighter::highlightBlock(const QString &text)
 {
     QRegularExpression regexp(_regexp);
     QRegularExpression::PatternOptions options;
     if (!_caseSensitive) {
         options |= QRegularExpression::CaseInsensitiveOption;
     }
     if (!_minimal) {
         options |= QRegularExpression::InvertedGreedinessOption;
     }
     regexp.setPatternOptions(options);
 
     QTextCharFormat format;
     format.setForeground(Qt::black);
     format.setFont(_editor->font());
     setFormat(0, text.length(), format);
 
     if (!regexp.isValid() || regexp.pattern().isEmpty()) {
         return;
     }
 
     // ------------------------------ Process with the regular expression.
     QColor colors[] = {Qt::red, Qt::blue};
     int color = previousBlockState();
     if (color < 0 || color > 1) {
         color = 0;
     }
 
     int index = 0;
     int start, length;
     QRegularExpressionMatch match;
     while ((index = text.indexOf(regexp, index, &match)) != -1 && index < (int)text.length()) {
         if (match.capturedStart(1) != -1) {
             start = match.capturedStart(1);
             length = match.captured(1).length();
         } else {
             start = index;
             length = match.capturedLength();
         }
 
         if (start != index) {
             setFormat(index, start - index, colors[color]);
         }
 
         QFont font = _editor->font();
         font.setUnderline(true);
         font.setPointSize((int)(font.pointSize() * 1.3));
         QTextCharFormat format;
         format.setFont(font);
         format.setForeground(colors[color]);
         setFormat(start, length, format);
 
         if (length + (start - index) != match.capturedLength()) {
             setFormat(start + length, match.capturedLength() - length - (start - index), colors[color]);
         }
 
         index += qMax(1, match.capturedLength()); // ensure progress when matching for example ^ or \b
         color = (color + 1) % 2;
     }
     setCurrentBlockState(color);
 }