I have a set of strings which contain a series of numbers delimited by a '-', like the following example.

0-0-0-23-34-2345-345-21-0-0-0-256-78-0-0-0-0-0-0-0-56-45-3-34-...

What I would like to find (with perl regular expressions?) is every number subseries in the string with a specific structure. For example, I could want to find any series of consecutive non-zero numbers followed by four or more zeros

.......-2-3-4-5-6-0-0-0-0-0-0-........

Is there an easy way to do these kinds of searches?

In reply to Perl pattern finding by Anonymous Monk

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