A Friday Regex Head Scratcher

Hey folks,

Probably simple, but the answer is eluding me at the moment.  I have a block
of text that contains:

some text PR 1234 more text

and I want to convert the number to a link to the issue in the bug reporting
database.  This is no problem, there is a regex to do just that:

             (\b(PR|SCR)[:s#]?\s?) # PR or SCR followed by :|s|#|whitespace
             (\s[a-z0-9-]+\/)?     # a category name & a slash (optional)
             ([0-9]+)              # the PR number

and that works perfectly.  Now, suppose that the block of text contains:

some text PR 1234, 5678 ,2345 more text

How would I need to adjust the regex to account for the unknown number of
additional comma-number sequences so that they can each be htmlified?

I need to inject this into both perl and python code.

Thanks for any thoughts!
Jon

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