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19 Oct

Thousand separator regex

s/\d{1,3}(?=(\d{3})+(?!\d))/$&,/g

The amount of code that goes in to formatting numbers can be silly sometimes, especially when you realise it can be done as a regex.

Note that if the number has a DP longer than 2, it'll format it - I suggest splitting out the DP first, and bash them back together.

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One Response to “Thousand separator regex”

  1. Amazing! Recursion in Regexps November 6th, 2007 at 10:07 pm

    [...] GeekTool output, you need to patch the source to interpret command output as utf-8. Original Post Sample Implementation [...]

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