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diff --git a/bundles/org.simantics.scl.ui/src/org/simantics/scl/ui/editor2/SCLPartitionScanner.java b/bundles/org.simantics.scl.ui/src/org/simantics/scl/ui/editor2/SCLPartitionScanner.java
new file mode 100644
index 000000000..98e9a4665
--- /dev/null
+++ b/bundles/org.simantics.scl.ui/src/org/simantics/scl/ui/editor2/SCLPartitionScanner.java
@@ -0,0 +1,33 @@
+package org.simantics.scl.ui.editor2;
+
+import org.eclipse.jface.text.rules.EndOfLineRule;
+import org.eclipse.jface.text.rules.IPredicateRule;
+import org.eclipse.jface.text.rules.IToken;
+import org.eclipse.jface.text.rules.MultiLineRule;
+import org.eclipse.jface.text.rules.RuleBasedPartitionScanner;
+import org.eclipse.jface.text.rules.SingleLineRule;
+import org.eclipse.jface.text.rules.Token;
+
+public class SCLPartitionScanner extends RuleBasedPartitionScanner {
+    public static final String SCL_COMMENT = "COMMENT";
+    public static final String SCL_STRING = "STRING";
+    
+    public static final IToken COMMENT_TOKEN = new Token(SCL_COMMENT);
+    public static final IToken STRING_TOKEN = new Token(SCL_STRING);
+    
+    public static final String[] PARTITION_TYPES = new String[] {
+            SCL_COMMENT,
+            SCL_STRING
+    };
+    
+    public SCLPartitionScanner() {
+        super();
+
+        setPredicateRules(new IPredicateRule[] {
+                new EndOfLineRule("//", COMMENT_TOKEN),
+                new MultiLineRule("\"\"\"", "\"\"\"", STRING_TOKEN, (char) 0, true),
+                new SingleLineRule("\"", "\"", STRING_TOKEN, '\\'),
+                new MultiLineRule("/*", "*/", COMMENT_TOKEN, (char) 0, true),
+        });
+    }
+}