Subject: Re: [xsl] XSLT, XHTML, and default attribute values [somewhat OT] From: David Carlisle <davidc@xxxxxxxxx> Date: Tue, 14 Sep 2004 13:10:49 +0100 |
I don't understand the benefits of using defaulted values, as anyone studying the xml also needs to study the dtd to ensure they get the full picture. Seems crazy, really. well of course they come from sgml where the situation was rather different, you always had to read the dtd anyway as you couldn't parse the file at all without it, so given that you were reading the dtd each time moving the defaults into the DTD rather than making the application imply that value if the attribute was missing has some benefits. With XML they do tend to cause problems, made worse by schema bringing in another set of variable rules, and defaulted element content as well. so you may get four different "infosets" depending on whether a schema, a dtd, both or neither has been read for a given document. David ________________________________________________________________________ This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________
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