Regexp notation

[Alan Bawden <Alan@lcs.mit.edu>]

   Date: 08 Jan 1997 12:55:30 -0500
   From: Olin Shivers <shivers@ai.mit.edu>
       (* <regex> ...)          0 or more matches

I, too, am puzzled by the "..." here (and in several of the others).

        `(let* ((any (* "dog"))) ,(computed-regexp-goes-here))

Looking at examples like this make me realize that what I really want isn't
an S-expression notation for regular languages.  What I really want is a
toolkit of procedures that operate on regular languages.  E.g.

  (let ((digit (re:range #\0 #\9)))
    (re:concatenate (re:or "+" "-" "")
                    (re:one-or-more digit)))