[racket] raco-style command line parsing library?

From: Richard Cobbe (cobbe at ccs.neu.edu)
Date: Sun Jun 27 17:49:46 EDT 2010

Is there an alternative to the `command-line' form that supports the use of
raco-style (svn-style, cvs-style, etc.) command lines, where the first
argument is a subcommand, and each subcommand takes a different set of
arguments and options?

I know that in v4, planet had such a library, but it started with a
prominent disclaimer that it wasn't ready for prime time.  From what I can
see right now, raco uses ad-hoc logic to deal with this.

I'm in the process of writing something similar to the existing
`command-line' form that will handle this style of command line, and I
wanted to avoid duplicating effort.



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