From: "Iñaki Baz Castillo" <ibc@...>
Date: 2009-12-03T00:17:08+09:00
Subject: How to use rb_enc_str_new() to create a String with UTF-8 encoding?

Hi, when I create a Ruby String from a C extension by using "rb_str_new(s, 
len)" I get a String with US-ASCII encoding.

I don't want to call later String#force_encoding(:"UTF-8") but instead use the 
rb_enc_str_new() function in string.c:


  VALUE
  rb_enc_str_new(const char *ptr, long len, rb_encoding *enc)
  {
      VALUE str = rb_str_new(ptr, len);
      rb_enc_associate(str, enc);
      return str;
  }

But I have no idea on how to set 'enc' parameter to be "UTF-8".
How should I fill the third 'enc' argument?

Thanks a lot.

-- 
Iñaki Baz Castillo <ibc@aliax.net>