Re: Why you should avoid Notation Declarations (byKohsuke
Elliotte Harold <elharo@m...> writes: >> You have a place in your XML document type for (e.g. hex-encoded) >> BLOBs to be included or referenced. Each BLOB in turn should be an >> encoding of something using one of a delimited set of more-or-less >> standard encodings. You want to allow or require document authors to >> signal which encoding they're using. > > How do notations improve on, for example, <data mime:type="image/jpeg" > href="somefile.jpg"/>? Normally I like additional layers of > indirection, but the NOTATION indirection has never seemed all that > useful. What am I missing? Not much. The benefits I see are * some modest additional enforcement (your NOTATION-typed attributes have to name declared Notations); * some modest documentation/semantics support, in the form of the System and Public IDs in the referenced Notation; * some modest functional specification for free, i.e. the fact that the NOTATION-typed attribute applies to its element's content. ht -- Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh Half-time member of W3C Team 2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440 Fax: (44) 131 650-4587, e-mail: ht@i... URL: http://www.ltg.ed.ac.uk/~ht/ [mail really from me _always_ has this .sig -- mail without it is forged spam]
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