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#include "BasicXMLSyntaxHighlighter.h" |
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|
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BasicXMLSyntaxHighlighter::BasicXMLSyntaxHighlighter(QObject * parent) : |
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QSyntaxHighlighter(parent) |
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{ |
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setRegexes(); |
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setFormats(); |
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} |
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|
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BasicXMLSyntaxHighlighter::BasicXMLSyntaxHighlighter(QTextDocument * parent) : |
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QSyntaxHighlighter(parent) |
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{ |
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setRegexes(); |
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setFormats(); |
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} |
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|
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BasicXMLSyntaxHighlighter::BasicXMLSyntaxHighlighter(QTextEdit * parent) : |
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QSyntaxHighlighter(parent) |
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{ |
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setRegexes(); |
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setFormats(); |
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} |
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|
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void BasicXMLSyntaxHighlighter::highlightBlock(const QString & text) |
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{ |
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// Special treatment for xml element regex as we use captured text to emulate lookbehind |
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int xmlElementIndex = m_xmlElementRegex.indexIn(text); |
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while(xmlElementIndex >= 0) |
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{ |
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int matchedPos = m_xmlElementRegex.pos(1); |
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int matchedLength = m_xmlElementRegex.cap(1).length(); |
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setFormat(matchedPos, matchedLength, m_xmlElementFormat); |
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|
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xmlElementIndex = m_xmlElementRegex.indexIn(text, matchedPos + matchedLength); |
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} |
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|
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// Highlight xml keywords *after* xml elements to fix any occasional / captured into the enclosing element |
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typedef QList<QRegExp>::const_iterator Iter; |
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Iter xmlKeywordRegexesEnd = m_xmlKeywordRegexes.end(); |
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for(Iter it = m_xmlKeywordRegexes.begin(); it != xmlKeywordRegexesEnd; ++it) { |
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const QRegExp & regex = *it; |
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highlightByRegex(m_xmlKeywordFormat, regex, text); |
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} |
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|
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highlightByRegex(m_xmlAttributeFormat, m_xmlAttributeRegex, text); |
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highlightByRegex(m_xmlCommentFormat, m_xmlCommentRegex, text); |
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highlightByRegex(m_xmlValueFormat, m_xmlValueRegex, text); |
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} |
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|
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void BasicXMLSyntaxHighlighter::highlightByRegex(const QTextCharFormat & format, |
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const QRegExp & regex, const QString & text) |
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{ |
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int index = regex.indexIn(text); |
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|
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while(index >= 0) |
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{ |
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int matchedLength = regex.matchedLength(); |
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setFormat(index, matchedLength, format); |
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|
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index = regex.indexIn(text, index + matchedLength); |
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} |
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} |
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|
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void BasicXMLSyntaxHighlighter::setRegexes() |
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{ |
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m_xmlElementRegex.setPattern("<[\\s]*[/]?[\\s]*([^\\n]\\w*)(?=[\\s/>])"); |
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m_xmlAttributeRegex.setPattern("\\w+(?=\\=)"); |
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m_xmlValueRegex.setPattern("\"[^\\n\"]+\"(?=[\\s/>])"); |
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m_xmlCommentRegex.setPattern("<!--[^\\n]*-->"); |
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|
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m_xmlKeywordRegexes = QList<QRegExp>() << QRegExp("<\\?") << QRegExp("/>") |
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<< QRegExp(">") << QRegExp("<") << QRegExp("</") |
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<< QRegExp("\\?>"); |
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} |
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|
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void BasicXMLSyntaxHighlighter::setFormats() |
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{ |
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m_xmlKeywordFormat.setForeground(Qt::blue); |
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|
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m_xmlElementFormat.setForeground(Qt::blue); |
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m_xmlAttributeFormat.setForeground(Qt::red); |
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|
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m_xmlValueFormat.setForeground(QColor(0x8055FF)); |
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m_xmlValueFormat.setFontWeight(QFont::Bold); |
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|
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m_xmlCommentFormat.setForeground(Qt::gray); |
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} |
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