Re: Naming conventions for a sampling of W3C and ISO XMLvocabu
On Fri, 2012-02-03 at 14:48 +0000, Costello, Roger L. wrote: > Hi Folks, > > I am sampling some standard XML vocabularies to see what naming > convention they use. Below is what I've compiled thus far. What naming > convention do you use? > > 1. XML Schema: all elements and attributes are camel case. Examples: > maxOccurs, elementFormDefault, substitutionGroup. This convention for XML names translate most easily into most non-XML programming languages. > > 2. XSLT: all elements and attributes are lower-case, dash-separated. > Examples: apply-templates, exclude-result-prefixes, analyze-string. If you do this, you need to have a data binding convention such as mapping aaa-bbb to aaaBbbb or aaa_bbb. This happens much more frequently with Schema than with XSLT, so that may explain the difference. Of course, if you want to exchange arbitrary names between XML and some other language, you're likely to need some sort of escaping method or translation convention at some point, so camelCase just lets you do a crappier initial data binding design :-) No opinion here on Schematron. I don't believe we (W3C) have a policy about name syntax. The Dutch parliament has a policy forbidding men from wearing white socks, but I doubt it affects the quality of their legislation. Liam PS: some people in this discussion have confused some terms. XML admits of only three different tag names: open, close, and empty. But you can define your own element names and attribute names... it's worth being clear about the distinction, not because of pedantry (despite mention of socks) but because _tags_ are about the text-based interchange format of XML, and elements are about the logical structure. Understanding the difference is part of the Nine-fold Path of Enlightagment in using XML and XSLT. -- Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/ Pictures from old books: http://fromoldbooks.org/
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