Rep-string: Difference between revisions

=={{header|APL}}==

{{works with|Dyalog APL}}

This function returns a list of all possible repeated substrings.

It returns the empty list if there are none.

<lang APL>rep ← ⊢ (⊢(/⍨)(⊂⊣)≡¨(≢⊣)⍴¨⊢) ⍳∘(⌊0.5×≢)↑¨⊂</lang>

{{out}}

<pre> rep '1001110011'

10011

rep '1110111011'

1110

rep '0010010010'

001

rep '1010101010'

10 1010

rep '1111111111'

1 11 111 1111 11111

rep '0100101101'

rep '0100100'

010

rep '101'

rep '11'

1

rep '00'

0

rep ,'1'

</pre>