Hi Rob,

Well, it's a very nice operator when you start connecting various functions together to form a kind of pipeline.

As the 3.1 draft example shows:

tokenize((normalize-unicode(upper-case($string))),"\s+")

or,

$string=>upper-case()=>normalize-unicode()=>tokenize("\s+")

Which reads better (inside to outside or sequential)? I think the latter.

The required ()s even are kind of mnemonic for pipelines (if you squint a little).

"foo" ===>()===()===()===> "FOO"

 

--Marc

On Thu, Sep 11, 2014 at 3:25 PM, Rob Stapper <r.stapper@lijbrandt.nl> wrote:

Hi,

 

I was playing with the arrow-operator and found that it doesn’t work on anonymous functions, see example.

 

('A', 'B', 'C') => function( $sequence) { count( $sequence)}

 

No idea why you should use a construction like this but I, kind of, expected it to work.

 

Maybe something for a next release( together with the “apply-function”;-).

 

Regards,

 

Rob Stapper

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--Marc