antlrInputStream = new ANTLRInputStream(is, encoding);
} else {
antlrInputStream = new ANTLRInputStream(is);
}
lexer = new DRLLexer(antlrInputStream);
DRLParser parser = new DRLParser( new CommonTokenStream( lexer ) );
return parser;
} catch ( final Exception e ) {
throw new RuntimeException( "Unable to parser Reader",
e );
}