Method highlightBlock

src/core/highlighters/JavaScriptHighlighter.cpp:85–175

}

void JavaScriptHighlighter::highlightBlock(const QString &text)
{
    // Search standard rules, then name rules, comments and quotes
    for (const HighlightingRule &rule : m_stdRules)
    {
        auto matchItr = rule.pattern.globalMatch(text);
        while (matchItr.hasNext())
        {
            auto match = matchItr.next();
            setFormat(match.capturedStart(), match.capturedLength(), rule.format);
        }
    }

    auto matchItr = m_nameRule.pattern.globalMatch(text);
    while (matchItr.hasNext())
    {
        auto match = matchItr.next();
        if (match.lastCapturedIndex() >= 2)
            setFormat(match.capturedStart(2), match.capturedLength(2), m_nameRule.format);
        if (match.lastCapturedIndex() > 4)
        {
            // Highlight function parameters, but do not highlight the delimiter ','
            int paramPos = match.capturedStart(5);
            QString substr = text.mid(paramPos, match.capturedLength(5));
            QStringList params = substr.split(QChar(','));
            for(const QString &param : params)
            {
                setFormat(paramPos, param.size(), m_parameterFormat);
                paramPos += param.size() + 1;
            }
        }
    }

    std::vector< std::pair<int, int> > singleLineComments;
    matchItr = m_singleLineCommentExpr.globalMatch(text);
    while (matchItr.hasNext())
    {
        auto match = matchItr.next();
        setFormat(match.capturedStart(), match.capturedLength(), m_commentFormat);
        singleLineComments.push_back({match.capturedStart(), match.capturedStart() + match.capturedLength()});
    }

    // Get previous block state. If state was a comment or quote, try to find ending expression
    int prevBlockState = previousBlockState(), startIdx = 0, endIdx = 0;
    if (prevBlockState == JavaScriptHighlighter::Comment)
    {
        endIdx = text.indexOf(m_commentEndExpr);
        if (endIdx < 0)
        {
            setFormat(0, text.size(), m_commentFormat);
            setCurrentBlockState(JavaScriptHighlighter::Comment);
            return;
        }
        else
        {
            setFormat(0, endIdx + 2, m_commentFormat);
            setCurrentBlockState(JavaScriptHighlighter::None);
            startIdx = endIdx + 3;