Please see Regexp::Common/Regexp::Common. This will help you from reinventing the wheel, and allow you to capture a wider array of numbers.

Also I see no < or > in your code. So it is difficult to give any further advice...

--
perl -p -e "s/(?:\w);([st])/'\$1/mg"

In reply to Re: extracting numbers with a regex by belg4mit
in thread extracting numbers with a regex by coolmichael

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