Re: Baffling math problems [Was: HTML 3.0 DTD ]

James Clark (jjc@jclark.com)
Sat, 3 Dec 1994 01:49:55 +0000


Date: Sat, 3 Dec 1994 01:49:55 +0000
From: jjc@jclark.com (James Clark)
Message-Id: <9412030149.AA21250@jclark.com>
To: connolly@hal.com
Cc: www-html@www0.cern.ch
In-Reply-To: <9412022354.AA02877@ulua.hal.com> (connolly@hal.com)
Subject: Re: Baffling math problems [Was: HTML 3.0 DTD ]


> Date: Sat, 3 Dec 1994 01:02:37 +0100
> From: "Daniel W. Connolly" <connolly@hal.com>
> 
> Here's the one that baffles me:
> 
> http://info.cern.ch/hypertext/WWW/Arena/tour/math2.html
> 
> 
> sgmls: SGML error at -, line 19 at ">":
>        BOX end-tag implied by OVER start-tag; not minimizable
> sgmls: SGML error at -, line 19 at ">":
>        MATH end-tag implied by OVER start-tag; not minimizable
> sgmls: SGML error at -, line 19 at ">":
>        TABLE end-tag implied by OVER start-tag; not minimizable
> sgmls: SGML error at -, line 19 at ">":
>        Out-of-context OVER start-tag ended HTML document element (and parse)
> 
> The offending line is:
> 
> <td><math>{(<left>e^ax^<over>1+{1<over>x}<right>)}</math>
> 
> I can't figure out why <over> is out of context there. It looks fine
> to me!

{ isn't recognized as a shortref in a box element.

*** html3.dtd.~1~	Sat Dec  3 01:19:59 1994
--- html3.dtd	Sat Dec  3 01:38:40 1994
***************
*** 951,957 ****
  
  <!SHORTREF MAP4 "}" REF6
                  "^" REF1
!                 "_" REF3 >
  
  <!--
   The inclusion of %formula and exclusion of %text is used here
--- 951,958 ----
  
  <!SHORTREF MAP4 "}" REF6
                  "^" REF1
!                 "_" REF3
!                 "{" REF5 >
  
  <!--
   The inclusion of %formula and exclusion of %text is used here

In the version I picked up (Fri 2-Dec-94 12:12:19) HR has a duplicate
URN attribute.

James