Re: [xsl] current-dateTime()

[Abel Braaksma <abel.online@xxxxxxxxx>]

Liam Quin wrote:
> On Fri, Apr 18, 2008 at 02:05:52PM +0100, Andrew Welch wrote:
>   
> > It should be straightforward to write an extension function instead...
> >     
>
> Actually no.  A conformant implementation is allowed to call an
> extension function only once for any given argument value, and
> to remember the results, to make it stable.  A give implementation
> might let you write such an extension function as you want, but
> there's no guarantee.

But you can make that guarantee by using newly added nodes, which cannot 
be pre-evaluated, and add them as a parameter to your extension 
function. This method was shown in my pure-XSLT approach earlier this 
thread, or in another post where I show how to create a semi-conformant 
GUID (which needs a timestamp and a random number, two things that are 
hard in XSLT).

Cheers,
-- Abel Braaksma