[Pharo-users] SmaCC: Adding conditions to production rules

[Konrad Hinsen]

Hi everyone,

I am stuck with a problem in SmaCC (of which I am a newbie user). Hoping
for suggestions from experts, any kind of pointer is welcome!

I have a production rule for infix operators:

  Term
    : NonInfixTerm 'arg' (<opIdentifier> 'opName' NonInfixTerm 'arg') * 
{{InfixOpTerm}}
    | NonInfixTerm
    ;

According to the syntax rules of my language, infix terms are valid only
if all <opIdentifier>s are equal. Otherwise parentheses must be used to
disambiguate, as the language has no precedence rules.

How can I do this with SmaCC? I don't see how I could do it using the
basic features, but maybe with some tweaking on the Pharo side.

Thanks in advance,
  Konrad.