Re: processing instructions def.
Benoit PAPILLAULT <Benoit.PAPILLAULT@g...> writes: > I can't find a precise documentation on Processing Instruction, except > on the W3C web server, but it's really not enough. Is there a more > complete definition, along with real samples. I'm trying to implement > some scripting features and 'm very interested in using XML Processing > Instructions. They're a black box. In SGML, a processing instruction is just a bunch of text, with no predefined meaning; in XML, the processing instruction is a name followed optionally by a bunch of text, also with no predefined meaning. That means that an application should look at a processing instruction and (usually) ignore it if it doesn't seem to make sense. Of course, this isn't very robust, and there have been two suggestions for improvements: 1. The old XML WG considered allowing PI targets to be Namespace-qualified, but in the end there wasn't enough demand, and the shift to attribute-based NS declarations would have killed that anyway. 2. Various people have suggested following a lead from recent SGML developments and requiring the PI target to be a notation name. Since notations are almost never used in the XML world, that might be a non-starter. All the best, David -- David Megginson david@m... http://www.megginson.com/ xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To unsubscribe, mailto:majordomo@i... the following message; unsubscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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