107 lines
4.2 KiB
C++
107 lines
4.2 KiB
C++
#include "gschighlighter.h"
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GSCHighlighter::GSCHighlighter(QTextDocument *aParent)
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: QSyntaxHighlighter(aParent)
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{
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HighlightingRule rule;
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keywordFormat.setForeground(Qt::darkCyan);
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keywordFormat.setFontWeight(QFont::Bold);
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// TODO: Tailor these to GSC
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const QString keywordPatterns[] = {
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QStringLiteral("\\bchar\\b"), QStringLiteral("\\bclass\\b"), QStringLiteral("\\bconst\\b"),
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QStringLiteral("\\bdouble\\b"), QStringLiteral("\\benum\\b"), QStringLiteral("\\bexplicit\\b"),
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QStringLiteral("\\bfriend\\b"), QStringLiteral("\\binline\\b"), QStringLiteral("\\bint\\b"),
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QStringLiteral("\\blong\\b"), QStringLiteral("\\bnamespace\\b"), QStringLiteral("\\boperator\\b"),
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QStringLiteral("\\bprivate\\b"), QStringLiteral("\\bprotected\\b"), QStringLiteral("\\bpublic\\b"),
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QStringLiteral("\\bshort\\b"), QStringLiteral("\\bsignals\\b"), QStringLiteral("\\bsigned\\b"),
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QStringLiteral("\\bslots\\b"), QStringLiteral("\\bstatic\\b"), QStringLiteral("\\bstruct\\b"),
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QStringLiteral("\\btemplate\\b"), QStringLiteral("\\btypedef\\b"), QStringLiteral("\\btypename\\b"),
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QStringLiteral("\\bunion\\b"), QStringLiteral("\\bunsigned\\b"), QStringLiteral("\\bvirtual\\b"),
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QStringLiteral("\\bvoid\\b"), QStringLiteral("\\bvolatile\\b"), QStringLiteral("\\bbool\\b")
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};
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for (const QString &pattern : keywordPatterns) {
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rule.pattern = QRegularExpression(pattern);
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rule.format = keywordFormat;
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highlightingRules.append(rule);
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}
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classFormat.setFontWeight(QFont::Bold);
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classFormat.setForeground(Qt::darkMagenta);
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rule.pattern = QRegularExpression(QStringLiteral("\\bQ[A-Za-z]+\\b"));
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rule.format = classFormat;
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highlightingRules.append(rule);
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quotationFormat.setForeground(Qt::darkGreen);
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rule.pattern = QRegularExpression(QStringLiteral("\".*\""));
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rule.format = quotationFormat;
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highlightingRules.append(rule);
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functionFormat.setFontItalic(true);
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functionFormat.setForeground(Qt::cyan);
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rule.pattern = QRegularExpression(QStringLiteral("\\b[A-Za-z0-9_]+(?=\\()"));
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rule.format = functionFormat;
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highlightingRules.append(rule);
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singleLineCommentFormat.setForeground(Qt::red);
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rule.pattern = QRegularExpression(QStringLiteral("//[^\n]*"));
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rule.format = singleLineCommentFormat;
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highlightingRules.append(rule);
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multiLineCommentFormat.setForeground(Qt::red);
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commentStartExpressionA = QRegularExpression(QStringLiteral("/\\*"));
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commentEndExpressionA = QRegularExpression(QStringLiteral("\\*/"));
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commentStartExpressionB = QRegularExpression(QStringLiteral("/@"));
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commentEndExpressionB = QRegularExpression(QStringLiteral("@/"));
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}
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void GSCHighlighter::highlightCommentBlock(const QString& aText, const QRegularExpression& aStartExp, const QRegularExpression& aEndExp)
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{
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setCurrentBlockState(0);
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int startIndex = 0;
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if (previousBlockState() != 1)
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{
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startIndex = aText.indexOf(aStartExp);
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}
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while (startIndex >= 0)
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{
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QRegularExpressionMatch match = aEndExp.match(aText, startIndex);
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int endIndex = match.capturedStart();
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int commentLength = 0;
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if (endIndex == -1)
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{
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setCurrentBlockState(1);
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commentLength = aText.length() - startIndex;
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}
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else
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{
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commentLength = endIndex - startIndex + match.capturedLength();
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}
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setFormat(startIndex, commentLength, multiLineCommentFormat);
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startIndex = aText.indexOf(aStartExp, startIndex + commentLength);
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}
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}
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void GSCHighlighter::highlightBlock(const QString& aText)
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{
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// Highlight regular rules
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for (const HighlightingRule &rule : std::as_const(highlightingRules))
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{
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QRegularExpressionMatchIterator matchIterator = rule.pattern.globalMatch(aText);
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while (matchIterator.hasNext())
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{
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QRegularExpressionMatch match = matchIterator.next();
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setFormat(match.capturedStart(), match.capturedLength(), rule.format);
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}
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}
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// Highlight comment blocks
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highlightCommentBlock(aText, commentStartExpressionA, commentEndExpressionA);
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highlightCommentBlock(aText, commentStartExpressionB, commentEndExpressionB);
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}
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