Hi Pascal,

I love how you are pushing the envelope on this. I guess that I would usually 
try something like this,

   (,&'*')`(,&'d')@.('c'={.)"1 ] 3 2 $ 'abc' 
ab*
cad
bc*

which feels like it is a step removed from the metal compared to allowing fills 
to be part of defined verbs

Cheers, bob

On Aug 28, 2014, at 6:15 PM, 'Pascal Jasmin' via Programming 
<[email protected]> wrote:

> if !. could apply to fills of any function then it could be written like this 
> (without a domain error):
> 
>    ,&'d'^:('c'={.)"1(!.'*')  3 2 $ 'abc' 
> ab* 
> cad 
> bc* 

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