[exslt] Reference and First-Class Function

[Michael Kay]

It seems to me that even if it's syntactic sugar, allowing people to write

call($function, 1, 2, 3)

is a lot more usable than requiring them to write

call(curry(curry(curry($function, 1), 2), 3))

or even

call($function, (ref(1), ref(2), ref(3)))

Michael Kay
http://www.saxonica.com/


> >>
> >> >     An alternative is to define single call syntax:
> >> >      ex:function(xs:QName('my:add'));
> >> >      ex:call($function, $argument);
> >>
> >>   But what if your function takes several parameters?
> >
> > In principle it's enough to support one argument function, 
> taking into 
> > account that $argument can be a reference. That one 
> argument function 
> > can forward a call to a real destination. In fact a pair 
> ($function, 
> > $argument) can be thought as a function-object.
> 
> In fact $function can be just xs:QName.
> The pair ($function, $argument) allows to model curry 
> functions, while types of $function, and $argument can be 
> serialized in some way.
> --
> Vladimir Nesterovsky
> http://www.nesterovsky-bros.com 
> 
> 
> 
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