Subject: Re: [xsl] Re: XSLT Date From: Francis Norton <francis@xxxxxxxxxxx> Date: Wed, 17 Oct 2001 16:08:02 +0100 |
I agree about the potential for disappointment, but perhaps this is best handled as an expectation management problem? Use this as a target spec., and make sure potential users realise that they will have to provide or use their own localization (of course, that's "localisation" for my fellow Brits) routines. For instance, C# users should probably be using DateTimeFormatInfo.UniversalSortableDateTimePattern for timestamps in ISO 8601 format with UTC timezones. Francis. Joerg Pietschmann wrote: > > Francis Norton <francis@xxxxxxxxxxx> wrote > >I'd be quite happy with the functionality required for XML Schema > >(http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/#dateTime, which is > >based on ISO 8601) to start with. Have you spotted any booby traps > >there? > > There is not much functionality in the sense of "stuff we can invoke > from within the XSLT language to get problems solved", unless i missed > something. > It defines the lexical format for date/time related datatypes, some > rules how to interpret the values and how to add a durations and a > date and a duration. This implies that XPath can rely on robust parsing > of dates and it is cheap to define constructors, comparisions, > a simple arithmetic and perhaps additional validation routines > based on the definitions there. All this technology is proven and well > debugged. > And i have to qualify my statement above: the combination of proper > parsing, constructors/casts for the various date related types > and arithmetic is already a powerful tool. For example, you should be > able to extract the month from a date by a cast, no longer bother > to substring(.,2,4) onto a lexical format you don't control... > > However, given the tendency of many users to use a localized lexical > format for dates, there is still a lot of potential for disappointment. > > Regards > J.Pietschmann > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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