Switching to linux for development of pglab.

Switched from qmake to cmake. Code changes to make it compile.

pglab/sqlhighlighter.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include <QSyntaxHighlighter>
+#include <QRegularExpression>
+
+#include <vector>
+
+class SqlHighlighter : public QSyntaxHighlighter
+{
+	Q_OBJECT
+
+public:
+	SqlHighlighter(QTextDocument *parent = 0);
+
+protected:
+	void highlightBlock(const QString &text) override;
+
+private:
+	struct HighlightingRule
+	{
+		QRegExp pattern;
+		QTextCharFormat format;
+
+		HighlightingRule(const QRegExp &regex, const QTextCharFormat &f)
+			: pattern(regex), format(f)
+			{}
+	};
+	//QVector<HighlightingRule> highlightingRules;
+	std::vector<HighlightingRule> highlightingRules;
+
+//    QRegExp commentStartExpression;
+ //   QRegExp commentEndExpression;
+
+	 QTextCharFormat keywordFormat;
+//     QTextCharFormat classFormat;
+//     QTextCharFormat singleLineCommentFormat;
+//     QTextCharFormat multiLineCommentFormat;
+//     QTextCharFormat quotationFormat;
+//     QTextCharFormat functionFormat;
+
+};
+