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Regex replace for numbers

From: Robert Thorpe
Subject: Regex replace for numbers
Date: Fri, 03 Oct 2014 01:33:58 +0100

I'm not very good with Emacs regex, I need to search-and-replace on some 

How can I detect unnecessary zeros at the end of a number and chop them
off?  E.g. turn 567.45000 to 567.45 without also turning 6700 to 67.

Robert Thorpe

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