qt-creator/src/plugins/qt4projectmanager/profilehighlighter.cpp

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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** This file is part of Qt Creator.
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#include "profilehighlighter.h"
#include "profilecompletionassist.h"

#include <extensionsystem/pluginmanager.h>

#include <QTextDocument>

using namespace Qt4ProjectManager::Internal;


ProFileHighlighter::ProFileHighlighter(QTextDocument *document) :
    TextEditor::SyntaxHighlighter(document)
{
    ProFileCompletionAssistProvider *pcap
            = ExtensionSystem::PluginManager::getObject<ProFileCompletionAssistProvider>();
    m_keywords = TextEditor::Keywords(pcap->variables(), pcap->functions(), QMap<QString, QStringList>());
}

void ProFileHighlighter::highlightBlock(const QString &text)
{
    if (text.isEmpty())
        return;

    QString buf;
    bool inCommentMode = false;

    QTextCharFormat emptyFormat;
    int i = 0;
    for (;;) {
        const QChar c = text.at(i);
        if (inCommentMode) {
            setFormat(i, 1, m_formats[ProfileCommentFormat]);
        } else {
            if (c.isLetter() || c == QLatin1Char('_') || c == QLatin1Char('.') || c.isDigit()) {
                buf += c;
                setFormat(i - buf.length()+1, buf.length(), emptyFormat);
                if (!buf.isEmpty() && m_keywords.isFunction(buf))
                    setFormat(i - buf.length()+1, buf.length(), m_formats[ProfileFunctionFormat]);
                else if (!buf.isEmpty() && m_keywords.isVariable(buf))
                    setFormat(i - buf.length()+1, buf.length(), m_formats[ProfileVariableFormat]);
            } else if (c == QLatin1Char('(')) {
                if (!buf.isEmpty() && m_keywords.isFunction(buf))
                    setFormat(i - buf.length(), buf.length(), m_formats[ProfileFunctionFormat]);
                buf.clear();
            } else if (c == QLatin1Char('#')) {
                inCommentMode = true;
                setFormat(i, 1, m_formats[ProfileCommentFormat]);
                buf.clear();
            } else {
                if (!buf.isEmpty() && m_keywords.isVariable(buf))
                    setFormat(i - buf.length(), buf.length(), m_formats[ProfileVariableFormat]);
                buf.clear();
            }
        }
        i++;
        if (i >= text.length())
            break;
    }

    applyFormatToSpaces(text, m_formats[ProfileVisualWhitespaceFormat]);
}