[whatwg] IBM864 mapping of Encoding Standard

[Makoto Kato]

(2012/04/20 17:09), Anne van Kesteren wrote:
> On Fri, 20 Apr 2012 09:58:52 +0200, Makoto Kato
> <m_kato at ga2.so-net.ne.jp> wrote:
>> I have a question of Encoding standard of
>> http://dvcs.w3.org/hg/encoding/raw-file/tip/Overview.html.
>>
>> Gecko supports IBM864, but it is different of old IBM864. It is
>> modified to support euro sign due to requested by IBM ([1] and [2]).
>
> Gecko also supports data:text/html;charset=ibm864,%25 0x25 -> U+066A
> which is probably worse as it changes the ASCII range.
>
>
>> You submit encoding detail [3] in repository, but this spec seems to
>> be old spec of IBM864.
>>
>> I think that we should use new mapping supported euro sign [4] instead
>> of old mapping. Or we should remove IBM code pages from spec. How do
>> you think?
>
> Does that mean you want to remove the encoding from Gecko? That would
> work for me. It is currently not supported by Opera either.
> Alternatively mapping 0xA7 to U+20AC works for me too, but I don't want
> it to tinker with the ASCII range.

Except to OS/2 and AIX, I think that this encoding is unnecessary since 
most browsers aren't supported.  If you only add IBM864 and IBM866 to 
this spec as legacy encoding, you should add all encodings that Gecko 
supports due to ambiguous.