Hi Henrique, Le 31/05/2017 à 17:03, Henrique Rocha a écrit :
Hello,
I was trying to convert a ANTLR4 grammar specification to SmaCC. After many unsuccessful tries that made me question my sanity I wondered: maybe someone has a solution. Grammar conversion is something that can be automated.
Sort of. LL(*) brings itself to entirely different hacks to play with the tokens and lexical analysis that LR() grammars, and most of the hard work on parsers is in that area. I haven't looked if the reversed recursion in ANTLR is hard to convert. The use of the + * ? [ ] symbols is nice because it hides effectively on which side the recursion happens (left recursion in LR, right recursion in ANTLR)
My question is if anyone has done something to convert an ANTLR4 grammar to a SmaCC grammar?
Write a ANTLRv4 grammar syntax grammar in SmaCC would do the trick. Apart from semantic actions of course. Regards, Thierry
Thanks and farewell,
- Henrique
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