From: "Pål Bergström" <pal@...>
Date: 2008-08-20T05:21:52+09:00
Subject: Re: Cut a string if length > n

Mark Thomas wrote:

> Rails has a utf8-compatible helper called truncate, called like so:
> 
> truncate(text, length = 30, truncate_string = "...")
> If text is longer than length, text will be truncated to the length of
> length (defaults to 30) and the last characters will be replaced with
> the truncate_string (defaults to "...").
> 
> And the implementation is:
> 
>   def truncate(text, length = 30, truncate_string = "...")
>     if text
>       l = length - truncate_string.chars.length
>       chars = text.chars
>       (chars.length > length ? chars[0...l] + truncate_string :
> text).to_s
>     end
>   end
> 
> Where chars is a string method in Ruby 1.8.7 or greater.

Perfect :-)
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