From: Richard Conroy <richard.conroy@...>
Date: 2010-01-29T02:57:36+09:00
Subject: Re: gsub not working to replace a 'Chinese' Charater.

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On Thu, Jan 28, 2010 at 5:05 PM, Ryan Smith <sunraise2005@gmail.com> wrote:

> gsub not works for me when replace 'DBCS'(double byte character set)
> character,  using last version ruby 1.8.6
>
> when "str=BA=BA=D7=D6end".gsub(/=BA=BA=D7=D6/,"hanzi"),
>   output still is: str=BA=BA=D7=D6end , but not strhanziend which I want =
to
> get.
>
> Searched web two whole night with no clue found.
>
> Anyone can help are much appreciated, need got it work very urgent.
> thank you!
>

Mixing encoding schemes is hell in almost any context, and Ruby is no
exception.
Until you have complete control in your program over all encoding inputs yo=
u
are
going to fail.

If your input is coming from the shell environment or standard in the text
can be
in the system encoding, regardless of what encoding you specify in Ruby.

It is preferable to use unicode (UTF-8) in any operation where you are
processing
multilingual text. Failing that there is the Iconv library which you can us=
e
to convert
between encoding schemes.

Note that 'double-byte encoding scheme' is an utterly useless term for
practical encoding
purposes. Its a gross simplification of what is going on, and especially so
with Han
character sets. To do any practical work with non-unicode, multi-byte
character sets, you
have to know the encoding scheme.

--=20
http://richardconroy.blogspot.com

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