I just authored Array::PatternMatcher and think it is worth mentioning here, but don't want the node to stay around for more than 2 weeks or so because after awhile the utility of this node decays (linearly? exponentially?) and the amount of disk space it wastes increases at 
1 .0 / ( 1.0  - $utility) ;

[download]
So perhaps there should be some way to mark a node as useless after a time period.

In reply to Self-expiring node : Array::PatternMatcher - regex-like stuff for arrays by princepawn

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