From "Mastering Regular Expressions 2nd Edn" p.65 

s/(?<=\d)(?=(\d\d\d)+$)/,/g

[download]

I like this because you are actually using the regex to determine the location to insert the comma, as opposed to replacing any of the original string. HTH

In reply to Re: Re: Making money look nice by Anonymous Monk
in thread Making money look nice by CodeJunkie

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