fixed underscore highlighting bug

refs 923

org.fortiss.af3.component.ui/trunk/src/org/fortiss/af3/component/ui/editor/code/CodeEditorConfiguration.java

@@ -64,7 +64,7 @@ import org.fortiss.tooling.base.ui.fieldassist.FieldAssistImageRegistry;
  * @author doebber
  * @author $Author$
  * @version $Rev$
- * @ConQAT.Rating YELLOW Hash: 4B9D6DF1E19BD1C87DCA808C3E6F6D4A
+ * @ConQAT.Rating YELLOW Hash: DB551994CC16796F16474B3A102399EC
  */
 public class CodeEditorConfiguration extends SourceViewerConfiguration {
 
@@ -215,7 +215,7 @@ public class CodeEditorConfiguration extends SourceViewerConfiguration {
 			/** {@inheritDoc} */
 			@Override
 			public boolean isWordPart(char c) {
-				return Character.isLetterOrDigit(c);
+				return Character.isLetterOrDigit(c) || c == '_';
 			}
 		};
 		WordRule keywordsRule = new WordRule(detector);