derp2: expressive parsing
derp2 is as an alternate implementation of the
derp parsing tool used in my
derp2 compiles complex regular operations, reductions and special compound forms
in context-free grammars down to the simplified Backus-Naur Form suitable for use
in parsing tools like Racket's
The pattern forms available in the tool are documented in a blog post on desugaring regular operations in context-free grammars.
To build and install as a racket collection, run
raco pkg install.
(require derp2) (derp2-parser ...)
derp2-parser like cfg-parser, but place derp-style rules in the