SyntacticTypingTest/highlighter.cpp at main · Canytr/SyntacticTypingTest · GitHub

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// #include "highlighter.h"

// Highlighter::Highlighter(QTextDocument *parent)
//     : QSyntaxHighlighter(parent)
// {
//     HighlightingRule rule;

//     keywordFormat.setForeground(Qt::darkBlue);
//     keywordFormat.setFontWeight(QFont::Bold);
//     QStringList keywordPatterns;
//     keywordPatterns << "\\bchar\\b" << "\\bclass\\b" << "\\bconst\\b"
//                     << "\\bdouble\\b" << "\\benum\\b" << "\\bexplicit\\b"
//                     << "\\bfriend\\b" << "\\binline\\b" << "\\bint\\b"
//                     << "\\blong\\b" << "\\bnamespace\\b" << "\\boperator\\b"
//                     << "\\bprivate\\b" << "\\bprotected\\b" << "\\bpublic\\b"
//                     << "\\bshort\\b" << "\\bsignals\\b" << "\\bsigned\\b"
//                     << "\\bslots\\b" << "\\bstatic\\b" << "\\bstruct\\b"
//                     << "\\btemplate\\b" << "\\btypedef\\b" << "\\btypename\\b"
//                     << "\\bunion\\b" << "\\bunsigned\\b" << "\\bvirtual\\b"
//                     << "\\bvoid\\b" << "\\bvolatile\\b" << "\\binclude\\b";
//     foreach (const QString &pattern, keywordPatterns) {
//         rule.pattern = QRegExp(pattern);
//         rule.format = keywordFormat;
//         highlightingRules.append(rule);
//     }

//     classFormat.setFontWeight(QFont::Bold);
//     classFormat.setForeground(Qt::darkMagenta);
//     rule.pattern = QRegExp("\\bQ[A-Za-z]+\\b");
//     rule.format = classFormat;
//     highlightingRules.append(rule);


//     singleLineCommentFormat.setForeground(Qt::gray);
//     rule.pattern = QRegExp("//[^\n]*");
//     rule.format = singleLineCommentFormat;
//     highlightingRules.append(rule);

//     multiLineCommentFormat.setForeground(Qt::gray);


//     quotationFormat.setForeground(Qt::darkGreen);
//     rule.pattern = QRegExp("\".*\"");
//     rule.format = quotationFormat;
//     highlightingRules.append(rule);


//     functionFormat.setFontItalic(true);
//     functionFormat.setForeground(Qt::blue);
//     rule.pattern = QRegExp("\\b[A-Za-z0-9_]+(?=\\()");
//     rule.format = functionFormat;
//     highlightingRules.append(rule);


//     commentStartExpression = QRegExp("/\\*");
//     commentEndExpression = QRegExp("\\*/");
// }

// void Highlighter::highlightBlock(const QString &text)
// {
//     foreach (const HighlightingRule &rule, highlightingRules) {
//         QRegExp expression(rule.pattern);
//         int index = expression.indexIn(text);
//         while (index >= 0) {
//             int length = expression.matchedLength();
//             setFormat(index, length, rule.format);
//             index = expression.indexIn(text, index + length);
//         }
//     }

//     setCurrentBlockState(0);


//     int startIndex = 0;
//     if (previousBlockState() != 1)
//         startIndex = commentStartExpression.indexIn(text);

//     while (startIndex >= 0) {
//         int endIndex = commentEndExpression.indexIn(text, startIndex);
//         int commentLength;
//         if (endIndex == -1) {
//             setCurrentBlockState(1);
//             commentLength = text.length() - startIndex;
//         } else {
//             commentLength = endIndex - startIndex
//                             + commentEndExpression.matchedLength();
//         }
//         setFormat(startIndex, commentLength, multiLineCommentFormat);
//         startIndex = commentStartExpression.indexIn(text, startIndex + commentLength);
//     }
// }