3 ms·

I like bison and I never minded flex. (ANTLR? Did not enjoy; would not use again. But it was a while ago now and maybe newer versions are improved.) I wonder i

• CalChris 9y ago
  I've used yacc/lex and bison/flex but ANTLR4 is the bees knees. It is a considerable improvement on previous ANTLRs. Separating out grammars (ANTLR grammar file) from actions (Java files) makes everything better.
• pjc50 9y ago
  Error handling involves quite a bit of manual work, memory management if you're allocating nodes during the parser and also trying to do error recovery is even worse. Best dealt with by a slab or pool allocator. It's not very OO-frinedly and you can only have one instance running at once. That was my experience of trying to manage several parsers for Verilog, VHDL, DEF and similar ecad formats.