Re: [SML] Whether to support Attribute or not?
<notice>If the following makes you laugh, that's OK with me.</notice> Everything inside a start tag declares attribute values, including the tag name. The tag name is accurately regarded as the value of the element's one and only nameless attribute. Every element must have a value for its nameless attribute -- even SML elements. The value of the nameless attribute (the "tag name" or "generic identifier") is only minimally constrained; it can be can be almost any token, and its value can be used for any application-defined purpose whatsoever. Therefore, if anyone thinks SML can be made to work entirely without attributes, they should think again. Attributes are of the essence of markup, and you can't get rid of them entirely. Since we can't get rid of them entirely, where should SML draw the line, and why? Personally, I'm not easily persuaded that parsing an "=" sign is so very difficult that it deserves to be discarded in the name of simplicity. If you really want simplicity, why not make *all* the attribute names explicit, instead of exempting only the generic identifier ("GI"). I mean, for example: <sml:GI="z"> instead of <z> Then it's simpler to process: <sml:GI="z" id="z1"> than it is to process: <z id="z1"> ...because everything that's space-delimited in a start tag is parsed in exactly the same way. Furthermore, we no longer care about the placement, within the start tag, of the generic identifier, because <id="z1" sml:GI="z">Hello, simple world!</sgml:GI="z"> can be a perfectly valid start tag for a z element. That's simpler, right? Finally, it's now possible to have an element with no tag name: <id="z1">Hello, simple world!</> If we don't require DTDs anyway, what's the difference? There is no reason to say what kind of a thing a particular element is, if you don't really care what kind of a thing it is, but you merely want to say something about it that is completely application-defined. If that's the case, then it's perfectly reasonable to have completely empty start tags, simply because you have nothing whatsoever to say about an element, other than that it starts in a certain place: <>Hello, simple world!</> In fact, we can express complete documents with no semantic baggage whatsoever in their markup. Now *that's* simplicity! -Steve -- Steven R. Newcomb, President, TechnoTeacher, Inc. srn@t... http://www.techno.com ftp.techno.com voice: +1 972 517 7954 <<-- new phone number fax +1 972 517 4571 <<-- new fax number pager (150 characters max): srn-page@t... Suite 211 <<-- new address 7101 Chase Oaks Boulevard Plano, Texas 75025 USA 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...)
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