Apart for the previous problem you should also anchor your regexps:

/^-[45][15j]$/ # note the ^ and $

otherwise you will match the regexp anywhere in the string: "toto-45tata" would match

Then your interpretation is right, otherwise it would be
if any character is '-' followed by 4 or 5 followed by 1 or 5 or j...

In reply to Re: Regexp experts, come to rescue! by mirod
in thread Regexp experts, come to rescue! by bman

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