Fellow Monks,

There is a method, that does the whole trick about 3
orders of magnitude faster (for the hash size IŽm dealing
with i.e. 50.000 entries) PLUS it doesnŽt need recursion.
IŽll provide only the pseudo-code, because I got this idea
when I woke up today:

n=1;
get the first n chars of $key;
make a hash-lookup; if exists put to list of prefixes;
get the last n chars of $key;
make a hash-lookup; if exists put to list of suffixes;
if n<length($key) { n++; reiterate }

[download]
That way I reduce about 50.000 regexps to about 40 hash
lookups. I LOVE sunday mornings. :-)

Ciao

In reply to Blazingly FAST by PetaMem
in thread Fast sublist generation by PetaMem

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