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[Fwd: Is DSSSL Hard?]

From: Paul Prescod <papresco@calum.csclub.uwaterloo.ca>
Date: Mon, 21 Apr 1997 14:06:59 -0400
Message-ID: <335BACC3.28027A18@calum.csclub.uwaterloo.ca>
To: www-style@w3.org
For comparison, here is the full text of Henry's original message.

Henry S. Thompson wrote:
> 
> Further to Paul's comments about DSSSL and CSS, here's something I
> showed at WWW6.  This is actually all but the first line of something,
> which follows after the page break -- have a guess as to what it is,
> before scrolling onwards:
> 
> ---------------------------
> p [ space-after: .3cm ]
> h1 [ font-weight: bold ]
> title [ space-after: .2cm
>          font-weight: bold
>          quadding: center ]
> 
> hr |rule]
> ---------------------------
> 
> ------------------
> <!doctype style-sheet SYSTEM "sdss-sheet.dtd">&sdss;
> ------------------
> 
> It's actually a fully valid DSSSL specification file, works with JADE.
> Of course there's a man behind the curtain:  the dtd is the standard
> one as shipped with JADE, plus some [gasp!] SHORTREFS:
> 
> <!ENTITY begin.crule "(element ">
> <!ENTITY begin.pmake "(make paragraph&#13;">
> <!ENTITY begin.make "(make ">
> <!ENTITY end.make "))&#13;&#13;">
> <!ENTITY sdss SYSTEM "sdss-basic.dsl">
> <!SHORTREF bm "&#RS" begin.crule
>               "|" begin.make
>               "[" begin.pmake
>               "]" end.make>
> <!USEMAP bm style-specification-body>
> 
> and the included entity defines a bunch of symbols and gets things
> started:
> 
> (root (make simple-page-sequence (make scroll)))(define bold 'bold)(define center 'center)
> 
> The point is of course NOT that you should actually do this (for one
> thing the use of a shortref on record start makes the document a bit
> difficult to work with), but that there is an isomorphism between
> simple DSSSL and CSS, and that it would be a straightforward matter to
> define an alternative NOTATION for DSSSL which responded to this.
> 
> ht
Received on Monday, 21 April 1997 14:01:13 GMT

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