July 2004
Intermediate to advanced
479 pages
12h 30m
English
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Validate an XML Document with XML Schema
XML Schema is the W3C evolution of the DTD. It is complex but powerful, in wide use but not always popular. This hack will help you start writing schema in this format.
XML Schema is a recommendation of the W3C, written in three parts. Part 0 is a nice little primer (http://www.w3.org/TR/xmlschema-0/) that gets you started with the language. Part 1 describes the structures of XML Schema (http://www.w3.org/TR/xmlschema-1/); it is a long spec—about 200 pages long when printed—and is rather complex. Part 2 defines datatypes (http://www.w3.org/TR/xmlschema-2/) and has been more gladly received than Part 1, though it is considered by some to be ad hoc and not without anomalies.
XML mensch James Clark (http://www.jclark.com) has said of Part 1 that “it is without doubt the hardest to understand specification that I have ever read” (http://www.imc.org/ietf-xml-use/mail-archive/msg00217.html). Many others who have read the spec, or have attempted to read it, heartily agree with James. This is unfortunate, as it has placed many schema writers and companies in the uncomfortable position of using and supporting a difficult spec from the W3C, a widely accepted (though not always highly regarded) source. Happily, there are alternatives, such as RELAX NG [Hack #72] and tools such as Trang (http://www.thaiopensource.com/relaxng/trang.html), that can conveniently convert RELAX NG to XML Schema [Hack #76] .
A Quick Introduction to XML Schema
We’ll start ...
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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.