If you're new to regexes, it might be helpful (although it will slow down processing slightly) to break this down into each thing you are trying to test. That may help you later when coming back to the code to figure out what you were testing for.

For example:

print "$_\n" if !/^,/ && !/,$/ && !/,,/ && /^[a-zA-Z,]$/;

In reply to Re: regex: only want [a-zA-Z] and comma chars in a string by delirium
in thread regex: only want [a-zA-Z] and comma chars in a string by heezy

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