chinese-gbk

chinese-gbk

[Katsumi Yamaoka]

Hi (Handa-san? :-),

Is it possible to implement the `chinese-gbk' coding system (and
also the charset) to the EMACS_22_BASE branch (i.e., Emacs 22.2)?
I heard that some Chinese messages use the gbk charset which is
a superset of gb2312.  A shar'd sample message is in:

http://article.gmane.org/gmane.emacs.gnus.general/65424

(To extract a message, save a sh script part to a file, do chmod +x,
 and execute it.)

Currently Gnus makes gbk be an alias to cp936 if gbk is not
available.  However, though I'm ignorant in Chinese, I can
observe it doesn't work like it does in the Emacs Unicode-2.
That is, gbk that is an alias to cp936 in Gnus is no more than
a workaround for preventing the `Unknown charset' error (if
there's no additional means to provide gbk, like [1]).  Maybe to
support gbk becomes indispensable like windows-1252 for Latin-1.

Regards,

[1] http://cache.gmane.org//gmane/emacs/gnus/general/65432-001.bin
(Another package, named `mule-gbk', is also available but it
 requires cns11643.*-5,6,7 fonts, which in the intlfonts package
 seem to be incomplete.)

Re: chinese-gbk

[Kenichi Handa]

In article <b4mzlyaogxg.fsf@jpl.org>, Katsumi Yamaoka <yamaoka@jpl.org> writes:

> Is it possible to implement the `chinese-gbk' coding system (and
> also the charset) to the EMACS_22_BASE branch (i.e., Emacs 22.2)?

The coding system is possible by mapping characters into
various existing CJ characters if we can ignore rarely used
few handreds characters.  The code will be something like
the support of utf-8.

But, Emacs 22 does't have a room to to make a charset for
GBK.

---
Kenichi Handa
handa@m17n.org

Re: chinese-gbk

[Katsumi Yamaoka]

>>>>> Kenichi Handa wrote:
> In article <b4mzlyaogxg.fsf@jpl.org>, Katsumi Yamaoka <yamaoka@jpl.org> writes:

>> Is it possible to implement the `chinese-gbk' coding system (and
>> also the charset) to the EMACS_22_BASE branch (i.e., Emacs 22.2)?

> The coding system is possible by mapping characters into
> various existing CJ characters if we can ignore rarely used
> few handreds characters.  The code will be something like
> the support of utf-8.

> But, Emacs 22 does't have a room to to make a charset for
> GBK.

Oops.  I wasn't aware of it.  Thanks.

Re: chinese-gbk

[Zhang Wei]

Kenichi Handa <handa@m17n.org> writes:

> In article <b4mzlyaogxg.fsf@jpl.org>, Katsumi Yamaoka <yamaoka@jpl.org> writes:
>
>> Is it possible to implement the `chinese-gbk' coding system (and
>> also the charset) to the EMACS_22_BASE branch (i.e., Emacs 22.2)?
>
> The coding system is possible by mapping characters into
> various existing CJ characters if we can ignore rarely used
> few handreds characters.  The code will be something like
> the support of utf-8.
>
> But, Emacs 22 does't have a room to to make a charset for
> GBK.

Su Yong and Zan Jian wrote a package named `mule-gbk' which implement
the GBK coding system, for more infomation:

http://mule-gbk.sourceforge.net/

because there's no room for GBK charsets (3 Leading Bytes at least),
mule-gbk occupied the leading bytes of Chinese-CNS-5, Chinese-CNS-6
and Chinese-CNS-7 charsets, these charsets are rarely used.

Re: chinese-gbk

[Katsumi Yamaoka]

>>>>> Zhang Wei wrote:
> Kenichi Handa <handa@m17n.org> writes:

>> But, Emacs 22 does't have a room to to make a charset for
>> GBK.

> Su Yong and Zan Jian wrote a package named `mule-gbk' which implement
> the GBK coding system, for more infomation:

> http://mule-gbk.sourceforge.net/

> because there's no room for GBK charsets (3 Leading Bytes at least),
> mule-gbk occupied the leading bytes of Chinese-CNS-5, Chinese-CNS-6
> and Chinese-CNS-7 charsets, these charsets are rarely used.

I have the mule-gbk package installed.  However, it displays GBK
text as all boxes.  Maybe I have to use GBK fonts instead of CNS-
5, 6, 7 fonts.  Though I've never found the GBK fonts for free
in the net.  OTOH, the utf-8 way that uses existing fonts is
very good (mule5-gbk.el[1], alias junk, works this way).

[1] http://cache.gmane.org//gmane/emacs/gnus/general/65432-001.bin

Re: chinese-gbk

[Katsumi Yamaoka]

>>>>> Katsumi Yamaoka wrote:

> OTOH, the utf-8 way that uses existing fonts is very good
> (mule5-gbk.el[1], alias junk, works this way).

> [1] http://cache.gmane.org//gmane/emacs/gnus/general/65432-001.bin

Sorry, this seems to be an ephemeral url.  You can find it in:

http://article.gmane.org/gmane.emacs.gnus.general/65432