From: Andre Nathan <andre@...>
Date: 2009-04-04T03:17:47+09:00
Subject: Re: Problem with String encoding when modifying it in C method

On Sat, 2009-04-04 at 01:39 +0900, I単aki Baz Castillo wrote:
> Could I invoke the C "force_encoding()" function from the C code
> before returning the modified string? How to invoke it?

You can call it as (untested):

  rb_funcall(str, rb_intern("force_encoding"), 1, rb_str_new2("utf-8"));

I'm not sure how to make your multi-capitalize method do the right
thing, but maybe reading the source of rb_str_capitalize_bang in
string.c helps.

Best,
Andre