At 12:12 PM 7/1/97 -0700, Murray Altheim wrote: >W. Eliot Kimber <eliot@isogen.com> writes: >> At 07:45 PM 6/27/97 -0700, Murray Altheim wrote: >> >Andrew Layman <andrewl@microsoft.com> writes: >> >> Lauren and Tim have some good points regarding IDs. It is a benefit if >> >> an id can easily map between an element and either a real world entity >> >> or an object in another database system. Unless there is some bad >> >> consequence to permitting a freer use of characters, relaxing the >> >> restrictions just seems to simplify document construction and >> >> processing. >> > >> >Well, the first thing that comes to mind would be that XML documents using >> >IDs not beginning with a name start character would not work in existing >> >SGML systems, and my understanding of the RCS is that it's not possible to >> >modify what constitutes a valid name start character to allow digits. This >> >would simply make XML documents and systems that create them incompatible >> >with SGML. I certainly stand to be corrected, but it seems pretty explicit >> >in 8879. >> >> Not true, if I understand your point. The reference concrete syntax does >> not specify the digits as name start characters, but XML is not using the >> reference concrete syntax and few useful SGML tools do not allow variant >> syntaxes (and therefore will allow you to redefine the name start >> characters) [The only one I can think of off hand in Panorama, which >> doesn't read SGML declarations at all and simply provides a longer name >> length automatically.]. > >Well, unless I was doing it incorrectly (which is certainly possible), I >couldn't get nsgmls to accept digits as namestart characters. I changed >both LCNMSTRT and UCNMSTRT to "0123456789" in the DCL and it produced I stand corrected. I was sure you could do this--but I didn't have handbook handy. My appologies to Murray. Cheers, E. -- <Address HyTime=bibloc> W. Eliot Kimber, Senior Consulting SGML Engineer Highland Consulting, a division of ISOGEN International Corp. 2200 N. Lamar St., Suite 230, Dallas, TX 95202. 214.953.0004 www.isogen.com </Address>Received on Thursday, 3 July 1997 04:56:51 EDT
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