From: lasitha <lasitha.ranatunga@...>
Date: 2009-03-06T23:12:59+09:00
Subject: Re: regexp problem /[éê]/ || /é|ê/

On Fri, Mar 6, 2009 at 6:02 PM, Jonatas Paganini <jonatasdp@gmail.com> wrote:
> Hi, I got a problem try to replace accentuated characters like:
>
> irb(main):002:0* name = "Fênix"
> => "F\303\252nix"
> irb(main):003:0> name.gsub(/[éê]/,'e')
> => "Feenix"
> irb(main):004:0> name.gsub(/é|ê/,'e')
> => "Fenix"

Looks to me like an encoding problem.  What source encoding are you working in?

If you set $KCODE = 'UTF-8' or append /u to the regex literals does it
resolve the inconsistency?


> What's the difference between /[éê]/ and /é|ê/ ?

In that context there shouldn't be any difference.  The union, |, can
be used for patterns longer than a single character, but the specific
patterns above look equivalent to me.  But if the encoding isn't set
appropriately all bets are off!

> ps: ruby -v
> ruby 1.8.6 (2007-09-24 patchlevel 111) [x86_64-linux]

ps:  the unicode support has apparently been much improved in 1.9.

Cheers,
lasitha