Re: [Bug-apl] String element of general array

[Elias Mårtenson]

It's easier than that. Your solution is:

      ∨/ (⊂'bar') ⍷ x

This is because X⍷Y returns a list of the elements of X that matches Y. Then ∨/ is just a reduction of that.

Regards,

Elias

On 9 May 2014 11:56, Blake McBride <address@hidden> wrote:

Forgive the question, but my experience is only with the original APL and not APL2.  I have a (general array) vector.  Each element is a string vector.  For example:

x←'abcd'  'efg'  'hijkl'

Now, if I have:

y←'hijkl'

z←'hhh'

How can I tell if y is in x?  How can I tell if z is in x?

I can easily do this with a loop, but that's not APL.

This is as far as I've gotten:

x∘.=y

(I am one function away from completing a keyed files system for GNU APL!)

Thanks!

Blake