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highlighter.h

+#ifndef HIGHLIGHTER_H
+#define HIGHLIGHTER_H
+
+#include <QSyntaxHighlighter>
+#include <QTextDocument>
+#include <QString>
+#include <QVector>
+#include <QRegExp>
+#include <QTextCharFormat>
+#include <QDomDocument>
+#include <QHash>
+
+class Highlighter : public QSyntaxHighlighter
+{
+public:
+    explicit Highlighter(QString, QObject *parent = 0);
+    bool setExtension(const QString&);
+//protected:
+    void highlightBlock(const QString&) override;
+
+private:
+    QString xml_filename;
+    QRegExp current_extension;
+
+    struct HighlightingRule
+    {
+        QRegExp pattern;
+        QTextCharFormat format;
+    };
+
+    struct HighlightLanguage
+    {
+        QVector <HighlightingRule> highlightingRules;
+
+        QRegExp commentStartExpression;
+        QRegExp commentEndExpression;
+
+        QTextCharFormat keywordFormat;
+        QTextCharFormat classFormat;
+        QTextCharFormat singleLineCommentFormat;
+        QTextCharFormat multiLineCommentFormat;
+        QTextCharFormat quotationFormat;
+        QTextCharFormat functionFormat;
+        QTextCharFormat preprocFormat;
+    };
+
+    QHash<QRegExp, HighlightLanguage> languagesContainer;
+};
+
+#endif // HIGHLIGHTER_H
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