Seems WebGain removed some features from the free downloadable version. for example, you cannot have line number of a parse error.I downloaded one before metamata was bought. It supported that.
JavaCC is Java Compiler Compiler. it is a parser generator. supports LL(1) grammar. there are some other xxxCC that supports LR grammar. No annoying LOOKAHEAD.
it is a parser generator. supports LL(1) grammar. there are some other xxxCC that supports LR grammar. No annoying LOOKAHEAD.