From: Austin Ziegler <halostatue@...>
Date: 2006-12-21T06:21:54+09:00
Subject: Re: Formating Floats as Money

On 11/25/06, Vidar Hokstad <vidar.hokstad@gmail.com> wrote:
> Phrogz wrote:
> > John Kopanas wrote:
> > > I have a number that is of type float.  I want to format it as dollars
> > > and cents.  How do you recommend I do it? :-)
> >
> > Here's my shot at it:
> >
> > class Numeric
> >   def to_currency( pre_symbol='$', thousands=',', decimal='.',
> > post_symbol=nil )
> >     "#{pre_symbol}#{
> >       ( "%.2f" % self ).gsub(
> >         /(\d)(?=(?:\d{3})+(?:$|\.))/,
> >         "\\1#{thousands}"
> >       )
> >     }#{post_symbol}"
> >   end
> > end
>
> Nice try. Now all it needs is to be able to handle other variations of
> the number of digits between each separator, which may not be uniform
> (i.e. 100,00,000.00), and it should be able to handle most
> international formats.

There's one of those on Rubyforge. Gavin Sinclair has an "extensions"
library to which I contributed my solution some time back.

-austin
-- 
Austin Ziegler * halostatue@gmail.com * http://www.halostatue.ca/
               * austin@halostatue.ca * http://www.halostatue.ca/feed/
               * austin@zieglers.ca