- From: Joe English <jenglish@crl.com>
- Date: Tue, 10 Jun 1997 12:39:03 -0700
- To: w3c-sgml-wg@w3.org
Earlier I wrote: > [concerning conditional marked sections] > > [...] if there are N possible conditions, it's > necessary to validate source documents 2**N times, once for > each possible combination of INCLUDE/IGNORE. This becomes > impractical at about N=3. Arjun Ray pointed out that well-formedness _can_ in fact be checked with a single pass in the presence of conditional marked sections. If element boundaries cannot cross marked section boundaries, then changing an INCLUDE MS to an IGNORE MS cannot make a WF document non-WF. A further simple restriction on the content and context of conditional MSs can also make one-pass validation tractable. --Joe English jenglish@crl.com
Received on Tuesday, 10 June 1997 15:50:24 UTC