Subject: Re: Correct use of "progv"?
From: Erik Naggum <>
Date: 1998/05/20
Newsgroups: comp.lang.lisp
Message-ID: <>

* John Wiseman
| So what is progv used for?

  from the notes on PROGV in the HyperSpec (the ANSI Common Lisp spec):
    Among other things, PROGV is useful when writing interpreters for
    languages embedded in Lisp; it provides a handle on the mechanism for
    binding dynamic variables.

  I have never seen PROGV in use (apart from this case, which cries out for
  lexical bindings, not dynamic), but that doesn't mean it isn't useful for
  some people somewhere.

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