Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!pasteur!ucbvax!XEROX.COM!Pavel.pa
From: Pavel.pa@XEROX.COM
Newsgroups: comp.lang.scheme
Subject: Re: How can you do things like ?X -> (*var* x) without Read Macros ?
Message-ID: <880324-133700-4063@Xerox>
Date: 24 Mar 88 21:36:31 GMT
References: <8803231941.AA16664@SCUBED.ARPA>
Sender: usenet@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 8

You preprocess the input from the user, checking each symbol for a
first-character of "?" and transforming all such uses into the list you
mentioned.  Alternatively, you write a parser/scanner for your input language
that has nothing to do with the Scheme function READ.

I prefer the latter idea myself.  To my mind, READ's only legitimate purpose is
the reading of real Scheme programs and data.

	Pavel