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loewis@informatik.hu-berlin.de (Martin v. Löwis) writes:
In GNU Emacs, the situation is slightly different: It recognizes a few Unicode subsets, like mule-unicode-0100-24ff, mule-unicode-2500-33ff, and mule-unicode-e000-ffff. Notice that this excludes the CJK ideographs.
As a follow-up, Emacs 21.3.50.2 now also has a defcustom setting utf-translate-cjk (in the mule group), which is off by default. If activated, reading UTF-8 will convert the CJK ranges to equivalent characters from jisx0208, gb2312, or ksc5601. In turn, if proper fonts are installed, Emacs can also display CJK Unicode characters. This goes together with utf-fragment-on-decoding, which arranges to convert UTF-8 strings into iso-8859 where possible (in particular for Greek and Cyrillic), so that, given proper fonts, Greek and Cyrillic can also be displayed. Regards, Martin