shmem,
Much better - but it helped me find another bug in your code. 
$perl shmem.pl hello
found: prefix(haughtiness humanoid ... hello

[download]

prefix(hello, hello) ne 'h' for a number of reasons. First, they have more in common then h. Second, it would consume the entire word - both of which are against the rules.

Cheers - L~R

In reply to Re^6: Challenge: prefix($x, $y) . suffix($x, $z) eq $x by Limbic~Region
in thread Challenge: prefix($x, $y) . suffix($x, $z) eq $x by Limbic~Region

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