That&#x27;s not really what I mean. Take the file `parser.mly` from <a href="http:&#x2F;&#x2F;andrej.com&#x2F;plzoo&#x2F;html&#x2F;miniml.html" rel="nofollow">http:&#x2F;&#x2F;andrej.com&#x2F;plzoo&#x2F;html&#x2F;miniml.html</a> . See how it has it&#x27;s own format for describing grammars. So does Yacc, so does X, Y, and Z. Is there an interchange format for parser generators?