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Re: [Chicken-users] Comparse recursive parser

From: Evan Hanson
Subject: Re: [Chicken-users] Comparse recursive parser
Date: Mon, 18 Feb 2019 12:06:29 +1300

Hi there,

On 2019-02-16 19:33, Joe Anonimist wrote:
> Unfortunately the recursive-parser procedure is not documented and
> the above code just keeps looping.

Regarding `recursive-parser', note that this has nothing to do with
recursive parsing per se, but rather exists to simplify *syntactic*
recursion, i.e. referring to a parser before it has been defined. For

  (define a*b
    (any-of (sequence (is #\a) (recursive-parser a*b))
            (is #\b)))

Without `recursive-parser' you would need to enclose the parser body
manually somehow. Regardless, the infinite recursion you're seeing is
due to your grammar, as megane says.



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