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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Blueberry/Unicode/XML
 >From: Jonathan Borden [mailto:jborden@m...] >Perhaps I might paraphrase this by suggesting that we define was is not >allowed in a name rather than what is. At the very least the set of >characters not allowed in a name are those needed to prevent ambiguity >(whitespace,">,)|=*+"). Consider the element: ><O'Hara> shrug </O'Hara> >Well, all my current documents would remain well-formed so I >don't see how >allowing this would adversely affect me. I could always refuse >to read such >new fangled documents just as I refuse to read HTML email :-) Right. If XML is to be modified for this, it should be done once and only once. Allowing all but syntax-specific characters is the simplest and best way to do that, with the minimum amount of argument over what is and is not a "reasonable" character to put in a name. Your set needs to be changed a bit, though. In regexp: [^ \t\r\n<>?!=/] Explanation: [^...]: All but these characters " \t\r\n": the definition of S (whitespace) "<>": Start and end angle brackets; IMHO <<>foo</<> is NOT a good idea, even though it would be unambiguous to a program. "?!": Needed for processing instructions, comments, doctypes, etc. "=": Necessary to separate attribute names from values. "/": Necessary to distinguish end tags. You don't need to exclude [,)|*+], as far as I can figure... By the way, someone brought up the case of Klingon, which didn't get its own Unicode script because it has a Latin equivalent... But the apostrophe is an essential character in Klingon, so you can't currently write Klingon XML markup. Given that there are more Klingon users and programmers than some of the omitted scripts (there's even a Klingon programming language, var'aq), this is obviously a dire flaw in XML. -- <a href="http://kuoi.asui.uidaho.edu/~kamikaze/"> Mark Hughes </a> 
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