What grammar based parser-generator tools exist for ruby?

Question

What open source (preferably gem-based) parser-generator options do I have in Ruby?

I've used (flex&bison)|(lex&yacc) from C in the past, and I'm comfortable with BNF-style specifications.

I've heard of treetop, but it looks a bit alien and verbose compared to yacc...

Purpose: I want to convert my text markup language to a BNF and generate the parsing code.

score 4 · Accepted Answer · edited Aug 28 '13 at 01:24

4

Have you looked at rex and racc, the gem versions of lex and yacc?

edited Aug 28 '13 at 01:24

Ross Attrill

answered May 24 '10 at 15:26

mckeed

score 3 · Answer 2 · answered Nov 10 '15 at 18:33

3

There's also parslet if you want a PEG-based processor

answered Nov 10 '15 at 18:33

pinkboi

score 1 · Answer 3 · answered Aug 28 '13 at 01:46

1

Citrus is an option - similar but not identical to Treetop in its grammar.

answered Aug 28 '13 at 01:46

Ross Attrill

3 Answers3