November 2000
Intermediate to advanced
384 pages
8h 8m
English
Content preview from XHTML by Example
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Improving on Well-Formedness with Schemata or DTDs
As you learned in the previous section, a well-formed document ensures that the parser can complete the rendering of the document. But well-formedness is really only the first step. The effective exchange of data not only requires a successful parsing of a document and data, but some assurance that the content of the document structures conform to any desired constraints.
For instance, the ordered list element (ol) used previously in the memo found in Listings 10.1–10.3 is designed to contain only one or more list item elements (li). That constraint can't be checked nor can it be enforced through the state of being well-formed.
What's needed, then, is a second set of rules that a document can ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.