Re: HTML Pro (composite DTD)

Peter Flynn (
07 Oct 1996 09:46:51 +0100

Date: 07 Oct 1996 09:46:51 +0100
From: Peter Flynn <>
Subject: Re: HTML Pro (composite DTD)
To: Gerald.Oskoboiny@UAlberta.CA
Message-id: <>

> I added this to my HTML validation service [*], but I had to change
> htmlpro.dtd slightly to get it to work.
> With the htmlpro.dtd as shipped, nsgmls would complain:
>     `DOCTYPE' declaration not allowed in DTD subset

Yes, some parsers seem to accept it, others not. I've never found out
why. I'll remove it in future, as I tripped over it on another system
this morning...