- From: Florent Georges <fgeorges@fgeorges.org>
- Date: Sun, 28 Aug 2011 23:14:47 +0200
- To: Norman Walsh <ndw@nwalsh.com>
- Cc: XProc Dev <xproc-dev@w3.org>
On 27 August 2011 20:22, Norman Walsh wrote:
> Florent Georges writes:
Hi,
>> 1/ if I evaluate it without passing any option explicitely,
>> then the output would be <otherwise/>
> No. That'll give you an error because you're referring to a
> variable with no value. If you want to test for that condition,
> use
> p:value-available('opt')
Yes, thanks. Btw the error message Calabash gives is
"empty-option.xproc:7:27:err:XD0023:Undeclared variable in XPath
expression: $opt". Maybe the "undeclared" is not exactly right.
>> 3/ if I evaluate it passing any non-zero-length string for
>> $opt, then the output would be <when/>
> No. The result depends on the effective boolean value of the
> string. So 'false' and possibly other values (I don't recall
> the EBV rules for string off the top of my head) would give you
> <otherwise/>.
Yes, I simplified a bit for the sake of conciseness. But
nontheless, whatever string I pass (with an EBV of true()), I get
always <otherwise/> instead of <when/>, except with the exact
strings "true" and "1". Weird...
Thanks for your response! Regards,
--
Florent Georges
http://fgeorges.org/
http://h2oconsulting.be/
Received on Sunday, 28 August 2011 21:15:44 UTC