[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] XSchema Spec Section 2.2, Draft 1
As usual, all comments, suggestions, rantings, etc. are welcome. I'm having a hard time describing these very simple parts, so I'd especially appreciate terminology improvements. Notes: I've expanded parameter entities and added namespace prefixes; otherwise this section (and content models and attributes, coming up next) are based entirely on John Cowan and Ron Bourret's combined DTD. Anything prefixed and postfixed with ... is in italics in the HTML version. The HTML version will be available shortly (as soon as AOL's servers stop giving me read-only filesystem errors, anyway) at http://purl.oclc.org/NET/xschema. Simon St.Laurent Dynamic HTML: A Primer / XML: A Primer / Cookies 2.2 Element Declarations Element declarations in XSchemas are made using the XSC:ElementDecl element and its contents: <!ELEMENT XSC:ElementDecl (XSC:Doc?, (XSC:Ref | XSC:Choice | XSC:Seq | XSC:Empty | XSC:Any | XSC:PCData | XSC:Mixed), XSC:AttDef*)> <!-- id is the element name --> <!ATTLIST XSC:ElementDecl XSC:id ID #REQUIRED > The XSC:id attribute identifies the name of the element, and is required. An element declaration would look like: <XSC:ElementDecl XSC:id="Species"> ...additionalDeclarations... </XSC:ElementDecl> This declaration would declare an element named "Species", which would appear in an instance as: <Species>...content...</Species> The XSC:id attribute must be unique, as it provides the name of the element as declared here, and is also used by other elements to refer to this element in their content model declarations. Note that an element must declare a content model, even if that content model is empty. Documentation (in the XSC:Doc element) and attribute declarations (using XSC:AttDef elements) are optional. Documentation about the element, content-model information, and attribute information are stored as sub-elements of the XSC:ElementDecl element. Documentation is covered in 2.6.1, Documentation Extensions. Content Model is covered in 2.3, Content Model Declarations, and attributes are covered in 2.4, Attribute Declarations. 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/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe 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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