chatcleaner: initial letter repetition check

src/chatcleaner/letterrepeatingcheck.cpp

@@ -0,0 +1,25 @@
+#include "letterrepeatingcheck.h"
+
+#include <QtCore>
+
+LetterRepeatingCheck::LetterRepeatingCheck()
+{
+}
+
+bool LetterRepeatingCheck::run(QString msg) 
+{
+	msg = msg.simplified().remove(" ");
+	QRegExp e(QString(".*(.)\\1{%1,}.*").arg(letterNumberToTrigger-1));
+	if(e.isValid()) {
+		if(e.exactMatch(msg)) { 
+			return true; 
+		}
+		else {
+			return false;
+		}
+	}
+	else { 
+		qDebug() << "The current Letter Repeating RegExp is invalid" << endl;
+		return false;
+	}
+}