Print a number with grouping in a European style

This code (which has been tested this time) will take a number like 1234567.89 and turn it into 1.234.567,89.

perl -le 'print scalar reverse join "", map { s/(\d{2})\./$1,\b/; s/^(
+\d{1,3})$/\.$1/; $_ } (reverse sprintf("%.2f", shift)) =~ m/.{1,3}/g'
+ 1234567.89
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Comment on Print a number with grouping in a European style Download Code

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Re: Print a number with grouping in a European style by belg4mit (Prior) on Feb 08, 2003 at 19:08 UTC
Would it not have been simpler to take any standard commify (perlfaq5 or the cookbook, etc.) and swap the comma and period? I could understand the novelty if Europeans acutally used a different "grouping" such as 12.3.45.6.78.9,00 `-- I'm not belgian but I play one on TV.`	[reply]
Re: Re: Print a number with grouping in a European style by integral (Hermit) on Feb 08, 2003 at 19:33 UTC
I could have, but at the time I didn't actually think to look up the perl faq. But now I have, I notice that my algorithm is basically the same as the routine from Andrew Johnson, just with modifications to use map instead of a s///, to convert the radix point to a comma. Plus this has been turned into a one-liner (with only one statement), which while the examples in perlfaq could easily be turned into one-liners, they all require temporary variables, which I like to avoid (for no good reason). -- integral, resident of freenode's #perl	[reply]