return false;
boolean modifiable;
ITextEditor editor= getEditor();
if (editor instanceof ITextEditorExtension2) {
ITextEditorExtension2 ext= (ITextEditorExtension2) editor;
modifiable= ext.isEditorInputModifiable();
} else if (editor instanceof ITextEditorExtension) {
ITextEditorExtension ext= (ITextEditorExtension) editor;
modifiable= ext.isEditorInputReadOnly();
} else if (editor != null) {
modifiable= editor.isEditable();
} else {
modifiable= true;
}