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Re: Reply to Ousterhout's reply (was Re: Ousterhout and Tcl ...)

To: scsh@martigny.ai.mit.edu
Subject: Re: Reply to Ousterhout's reply (was Re: Ousterhout and Tcl ...)
From: "Donal K. Fellows" <fellowsd.cs@man.ac.uk>
Date: 14 Apr 1997 10:35:32 GMT
Organization: Dept of Computer Science, University of Manchester, U.K.
In article <334EDC93.2376@maths.anu.edu.au>,
Graham Matthews  <graham.matthews@maths.anu.edu.au> wrote:
[ Replying to JO ]
> I would like you ask you a question. You claim that the "everything is a
> string" approach is the be-all-and-end-all, the way to go, etc, etc. Why
> then has Tcl8.0 moved away from this philosophy?

Semantically it hasn't.  It just now has a rather neat behind-the-scenes
way of caching the results of converting the value from a string into
something else (like a list or number) in case it gets used like that
again.  You never see this though.  It is transparent to the programmer
(unless you are coding an extension in C and want to use the faster
programming interface - you don't have to though) and all the user
sees are (sometines significantly) faster programs.

Donal.
--
Donal K. Fellows   http://r8h.cs.man.ac.uk:8000/  (SAY NO TO COMMERCIAL SPAMS!)
(work) fellowsd@cs.man.ac.uk     Dept. Comp. Sci, Univ. Manchester, U.K.
 |     donal@ugglan.demon.co.uk  6,Randall Place, Heaton, Bradford, U.K. (home)
 +-> ++44-161-275-6137  Send correspondence to my office  ++44-1274-401017 <-+

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