////  ScriptHighlighting.cpp//  interface/src////  Created by Thijs Wenker on 4/15/14.//  Copyright 2014 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #include "ScriptHighlighting.h" ScriptHighlighting::ScriptHighlighting(QTextDocument* parent) :    QSyntaxHighlighter(parent){    keywordRegex = QRegExp("\\b(break|case|catch|continue|debugger|default|delete|do|else|finally|for|function|if|in|instanceof|new|return|switch|this|throw|try|typeof|var|void|while|with)\\b");    qoutedTextRegex = QRegExp("\".*\"");    multiLineCommentBegin = QRegExp("/\\*");    multiLineCommentEnd = QRegExp("\\*/");    numberRegex = QRegExp("[0-9]+(\\.[0-9]+){0,1}");} void ScriptHighlighting::highlightBlock(const QString &text) {    this->highlightKeywords(text);    this->formatComments(text);	    this->formatQoutedText(text);    this->formatNumbers(text);} void ScriptHighlighting::highlightKeywords(const QString &text) {    int index = keywordRegex.indexIn(text);    while (index >= 0) {        int length = keywordRegex.matchedLength();        setFormat(index, length, Qt::blue);        index = keywordRegex.indexIn(text, index + length);    }} void ScriptHighlighting::formatComments(const QString &text) {     setCurrentBlockState(BlockStateClean);     int start = (previousBlockState() != BlockStateInMultiComment) ? text.indexOf(multiLineCommentBegin) : 0;     while (start > -1) {        int end = text.indexOf(multiLineCommentEnd, start);        int length = (end == -1 ? text.length() : (end + multiLineCommentEnd.matchedLength())) - start;        setFormat(start, length, Qt::lightGray);        start = text.indexOf(multiLineCommentBegin, start + length);        if (end == -1) setCurrentBlockState(BlockStateInMultiComment);    }} void ScriptHighlighting::formatQoutedText(const QString &text){    int index = qoutedTextRegex.indexIn(text);    while (index >= 0) {        int length = qoutedTextRegex.matchedLength();        setFormat(index, length, Qt::red);        index = qoutedTextRegex.indexIn(text, index + length);    }} void ScriptHighlighting::formatNumbers(const QString &text){    int index = numberRegex.indexIn(text);    while (index >= 0) {        int length = numberRegex.matchedLength();        setFormat(index, length, Qt::green);        index = numberRegex.indexIn(text, index + length);    }}