From: Brian Candler <b.candler@...>
Date: 2009-12-03T01:45:29+09:00
Subject: Re: How to use rb_enc_str_new() to create a String with UTF-8 encoding?

I単aki Baz Castillo wrote:
>   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?

I'd say give it a pointer to an rb_encoding object.

Have a look in encoding.c, this particular function might be useful:

rb_encoding *
rb_enc_find(const char *name)
{
    int idx = rb_enc_find_index(name);
    if (idx < 0) idx = 0;
    return rb_enc_from_index(idx);
}

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