bug#1654: 23.0.60; auto encoding detection (detect-coding-region) not working

[poppyer]

Kenichi Handa <handa@m17n.org> writes:

> In article <ukwsabwo8x.fsf@nusnet-97-126.dynip.nus.edu.sg>, poppyer 
> <poppyer@gmail.com> writes:
>
>> But for the big5, in the list returned by 
>> "(detect_coding_region (region-beginning) (region-end))", 
>> there is not big5. I do understand that gbk and big5's sequences might
>> not be easy to distinguish, but in this case, both encodings are
>> compatible to the input literal text, so both should be in the returned 
>> list. Am
>> I right?
>
> You are right.  But, the current Emacs can't have both GBK
> and Big5 in a list of coding systems to try for detecting
> because they are in the same category of coding-system
> (i.e. charset-base).   I know that this restriction is not
> good, and improving it is in my todo list, but I still don't
> have a time to work on it.
>

Thanks, that is clear.

poppyer