1 files changed, 54 insertions, 0 deletions
diff --git a/plugins/org.eclipse.etrice.dctools.fsm/src/org/eclipse/etrice/dctools/fsm/ast/internal/DCIdentifierRule.xtend b/plugins/org.eclipse.etrice.dctools.fsm/src/org/eclipse/etrice/dctools/fsm/ast/internal/DCIdentifierRule.xtend
new file mode 100644
index 000000000..a81db6e80
--- /dev/null
+++ b/plugins/org.eclipse.etrice.dctools.fsm/src/org/eclipse/etrice/dctools/fsm/ast/internal/DCIdentifierRule.xtend
@@ -0,0 +1,54 @@
+/*******************************************************************************
+ * Copyright (c) 2018 protos software gmbh (http://www.protos.de).
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * CONTRIBUTORS:
+ * 		Henrik Rentz-Reichert (initial contribution)
+ * 
+ *******************************************************************************/
+
+package org.eclipse.etrice.dctools.fsm.ast.internal
+
+import org.eclipse.etrice.dctools.fsm.ast.tokens.DCToken
+import org.eclipse.etrice.dctools.fsm.ast.tokens.DCToken.Kind
+import org.eclipse.jface.text.rules.ICharacterScanner
+import org.eclipse.jface.text.rules.IRule
+import org.eclipse.jface.text.rules.Token
+
+class DCIdentifierRule implements IRule {
+	
+	val detector = new DCWordDetector
+	val token = new DCToken(Kind.IDENTIFIER)
+	val buffer= new StringBuffer
+	
+	override evaluate(ICharacterScanner scanner) {
+		buffer.setLength(0)
+		
+		var c = scanner.read
+		if (c != ICharacterScanner.EOF && detector.isWordStart(c as char)) {
+			do {
+				buffer.append(c as char)
+				c = scanner.read()
+			}
+			while (c != ICharacterScanner.EOF && detector.isWordPart(c as char))
+			scanner.unread
+
+			val id = buffer.toString
+			if (!id.empty) {
+				return token
+			}
+		}
+		else {
+			scanner.unread
+		}
+		
+		for (var i= buffer.length() - 1; i >= 0; i--) {
+			scanner.unread
+		}
+		return Token.UNDEFINED
+	}
+	
+}
+\ No newline at end of file