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Re: XPath 3.1 F&O spec, and HTML ASCII case insensitivecollati

  • From: "l@tlo" <lists@traduction-libre.org>
  • To: Michael Kay <mike@saxonica.com>
  • Date: Fri, 18 Aug 2023 12:19:53 +0200

Re:  XPath 3.1 F&O spec

> On Aug 18, 2023, at 12:14, Michael Kay <mike@saxonica.com> wrote:
> That's the problem with a living spec - anyone daring to refer to it risks the reference becoming dead.
> The relevant text now appears to be in section 4.6 Strings:
> A string A is an ASCII case-insensitive match for a string B, if the ASCII lowercase of A is the ASCII lowercase of B.
> It would probably have been wiser to copy the normative definition into the F&O spec, and add a note saying it was equivalent to something in HTML.
> (A lot of people are still using XSLT 1.0, which defines format-number() with a normative reference to JDK 1.1 documentation, which is no longer obtainable on the web, as far as I can tell.

Would that work ?

Jean-Christophe Helary 

> We've become very undisciplined - all this important stuff should be deposited on paper copies in bricks-and-mortar libraries).
> Michael Kay
> Saxonica
>> On 18 Aug 2023, at 10:21, Mukul Gandhi <mukulg@softwarebytes.org> wrote:
>> Hi all,
>>     I've been reading the following XPath 3.1 F&O spec section, https://www.w3.org/TR/xpath-functions-31/#html-ascii-case-insensitive-collation (section 5.3.4 of the XPath 3.1 F&O spec).
>> This XPath 3.1 F&O spec section says following,
>> <quote>
>> The collation URI http://www.w3.org/2005/xpath-functions/collation/html-ascii-case-insensitive must be recognized by every implementation.
>> It is used to refer to the HTML ASCII case-insensitive collation as defined in [HTML5: A vocabulary and associated APIs for HTML and XHTML] (section 2.5, Case sensitivity and string comparison).
>> </quote>
>> The XPath 3.1 F&O spec within its normative references, provides following link to HTML5 spec : https://html.spec.whatwg.org/multipage/ (the one page HTML5 spec is following, https://html.spec.whatwg.org/).
>> I'm not able to find the, phrase "Case sensitivity" within the above cited HTML5 spec link (i.e, HTML5 spec's link as cited above, doesn't seem to have definition(s) related to "Case sensitivity and string comparison").
>> Due to the above stated facts, can an XPath 3.1 implementation as of now, omit complying to XPath 3.1 F&O spec spection https://www.w3.org/TR/xpath-functions-31/#html-ascii-case-insensitive-collation?
>> -- 
>> Regards,
>> Mukul Gandhi

Jean-Christophe Helary @jchelary@emacs.ch

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