FunkyMonk,
I believe this code is flawed in that it violates two of the rules.

Changing the players for a dictionary file, I tried 'hello'. It produced the following: 

h.ello
  PREFIX h: ha haberdasher ..... he head

[download]
Neither 'he' nor 'head' should be matched here because they share more than just 'h' in common with 'hello'. 'he' should be excluded because it consumes the entire word.

Cheers - L~R

In reply to Re^2: 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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