Re: [xsl] Xpath3 method for concisely getting position of ranging variable in FOR expression?

[David Rudel <fwqhgads@xxxxxxxxx>]

Ah, thanks for that.


On Fri, Mar 14, 2014 at 5:16 PM, Michael Kay <mike@xxxxxxxxxxxx> wrote:
> In many cases "for" expressions can now be written with the "!" operator, and in this case you can use position().
>
> For example
>
> for $i in 1 to count($seq)) return $i * seq[$i]
>
> can now be written as
>
> $seq ! (. * position())
>
> Michael Kay
> Saxonica
>
> On 14 Mar 2014, at 15:53, David Rudel <fwqhgads@xxxxxxxxx> wrote:
>
>> In Xpath2, there was no super-concise method of extracting the
>> position of a ranging variable in a for expression.
>>
>> For example, in the expression "for $i in $seq return [expression]",
>> you could not use $i/position() to give you the position of $i.
>>
>> Instead you had to rewrite as "for $n in 1 to count($seq)"... and then
>> use $n or $seq[$n] as needed.
>>
>> I'm writing to ask whether there is any new method in Xpath3 that
>> provides a more concise method of referencing the position of a bound
>> range variable.
>>
>> -David
>>
>> --
>>
>> "A false conclusion, once arrived at and widely accepted is not
>> dislodged easily, and the less it is understood, the more tenaciously
>> it is held." - Cantor's Law of Preservation of Ignorance.
>



-- 

"A false conclusion, once arrived at and widely accepted is not
dislodged easily, and the less it is understood, the more tenaciously
it is held." - Cantor's Law of Preservation of Ignorance.