// TODO: WTH is this??????
DRLLexer lex = new DRLLexer( new ANTLRStringStream( descr.getExpression() ) );
boolean isSimpleIdentifier = false;
try {
lex.mID();
isSimpleIdentifier = lex.getCharIndex() >= descr.getExpression().length();
} catch ( RecognitionException e ) {
}