Re: My report on experiments with unused namespaces
Original Message From: "Michael Kay" > W3C doesn't make laws, it writes specifications. Don't read a W3C spec to > discover whether document is legal or illegal. I think the original poster used 'legal' so I went with that. I probably mean "well-formed", and, if applicable, "namespace-well-formed". > Documents using names beginning "xml" are not illegal; they are not even > ill-formed; they simply contain names that are reserved. It's up to you > whether documents containing reserved names are acceptable in your > application or not. By reserving names that start with "xml" I'm assuming the W3C is saying that you (anyone not acting on behalf of the W3C) can not define names that start with "xml". If this weren't the case, surely this paragraph should have been a Note similar to that about colons in names that follows it, and say something like: Note: Names beginning with the string "xml", or with any string which would match (('X'|'x') ('M'|'m') ('L'|'l')), _may be used_ for standardization in this or future versions of this specification. Therefore, authors should not use the XML names beginning with "xml" except as described by relevant W3C specifications. So an XML instance that contains an xmlns attribute MUST be using the definition of that attribute defined by the W3C as no one else is allowed to define such an attribute, and since there is only one place where such an attribute is defined, it MUST be a namespace declaration. So, even though the application _reading_ the XML might not be XML namespace aware, the application _creating_ the XML containing an xmlns... attribute MUST be namespace aware (otherwise it's broken - for some value of broken!) and therefore the attribute MUST be a valid namespace declaration, even if the reading application doesn't know that. Pete Cordell Codalogic Ltd Interface XML to C++ the easy way using XML C++ data binding to convert XSD schemas to C++ classes. Visit http://codalogic.com/lmx/ or http://www.xml2cpp.com for more info
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index]
PURCHASE STYLUS STUDIO ONLINE TODAY!
Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!
Download The World's Best XML IDE!
Accelerate XML development with our award-winning XML IDE - Download a free trial today!
Subscribe in XML format