Re: Use optional options...

Well, I don't think it's always that easy. You can't currently dynamically
choose whether or not to use the default value in a consise and easy way.
Matthieu describes this in more detail in the thread "result of A&Q at XML
Prague preconf day". See his point #3: "Conditional options".




Jostein


On 18 February 2014 09:26, Florent Georges <fgeorges@fgeorges.org> wrote:

>    Yes, Erik Siegel already answered me, just seen it was in private.
> My brain obviously was not working 100% yesterday night...  Rule of
> thumb: sleep on such questions when you work late at night, before
> sending them on a public mailing list.
>
>   Thanks, and sorry for the noise,
>
> --
> Florent Georges
> http://fgeorges.org/
> http://h2oconsulting.be/
>
>
> On 18 February 2014 08:58, James Fuller wrote:
> > you could provide a default value to the option ( look up 5.7.2
> > p:option in http://www.w3.org/TR/xproc/#p.option)
> >
> >     <p:option name="o" required="false" select="()"/>
> >
> > maybe this does not address your need, but thought I would mention it.
> >
> > hth, Jim Fuller
> >
> >
> > On 18 February 2014 01:07, Florent Georges <fgeorges@fgeorges.org>
> wrote:
> >>   Hi,
> >>
> >>   If I pass an optional option to a step, and if I want to use the
> >> value of the parameter, without any error because that parameter does
> >> not exist, I would like to declare the following variable (to default
> >> the value of the option in case it has not been provided, and to
> >> prevent static errors), but even in that case it is an error because
> >> the variable is referenced in the XPath expression, so it is a static
> >> error:
> >>
> >>     <p:option name="o" required="false"/>
> >>
> >>     <p:variable name="v" select="
> >>        if ( p:value-available('o') ) then
> >>           $o
> >>        else
> >>           'default value'"/>
> >>
> >>     <!-- here, can use $v everywhere... -->
> >>
> >>   Is there an idiomatic solution to this problem?  I mean, besides
> >> using a p:choose around all possible step using the option?
> >>
> >>   Regards,
> >>
> >> --
> >> Florent Georges
> >> http://fgeorges.org/
> >> http://h2oconsulting.be/
> >>
>
>