RE: Language is not markup and markup is not language.

Subject: RE: Language is not markup and markup is not language.
From: "Vun Kannon, David" <dvunkannon@xxxxxxxx>
Date: Mon, 10 May 1999 18:11:25 -0400
The point Paul raises below was the chief justification, I believe, in the
creation of PDF out of Postscript. Postscript has a Halting Problem (you
don't know if it will), while PDF doesn't. An important distinction in the
print industry. The lesson for XSL is to never start down this path in the
FO vocabulary.
David vun Kannon

> -----Original Message-----
> From:	Paul Prescod [SMTP:paul@xxxxxxxxxxx]
> Sent:	Monday, May 10, 1999 4:01 PM
> To:	xsl-list@xxxxxxxxxxxxxxxx
> Subject:	Re: Language is not markup and markup is not language.
> For instance imagine you are serving documents through a script to publish
> them to the Web. Wouldn't it be nice to be able to check if the documents
> and the script are "compatible" before you put them on your website? A
> "compatible" document would be one that wouldn't cause the script to go
> into an infinite loop or crash. Well with a scripting language the only
> way to check is to run the script. If it seems to go into an infinite loop
> then you could wait for half an hour and say: "well, I guess it is in an
> infinite loop"-- but unless you know the details of the code you are just
> guessing. You don't know for sure.
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