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Mention that mule-unicode-* charsets aren't unified with the others.

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Eli Zaretskii 2001-06-10 10:13:08 +00:00
parent b5a9911c41
commit 3d7a4ec820
2 changed files with 24 additions and 3 deletions
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13
etc/NEWS
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@ -2567,9 +2567,16 @@ the Macintosh but may be used generally for Macintosh-encoded text.
introduced for Unicode characters in the range U+0100..U+24FF,
U+2500..U+33FF, U+E000..U+FFFF respectively.
** The new coding system `mule-utf-8' has been added. It provides
limited support for decoding/encoding UTF-8 text. For details, please
see the documentation string of this coding system.
Note that the character sets are not yet unified in Emacs, so
characters which belong to charsets such as Latin-2, Greek, Hebrew,
etc. and the same characters in the `mule-unicode-*' charsets are
different characters, as far as Emacs is concerned. For example, text
which includes Unicode characters from the Latin-2 locale cannot be
encoded by Emacs with ISO 8859-2 coding system.
** The new coding system `mule-utf-8' has been added.
It provides limited support for decoding/encoding UTF-8 text. For
details, please see the documentation string of this coding system.
** The new character sets `japanese-jisx0213-1' and
`japanese-jisx0213-2' have been introduced for the new Japanese

14
etc/PROBLEMS
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@ -668,6 +668,20 @@ from Emacs 19.34 distribution:
Specifying a different independent variable name will affect the
resulting formula: @kbd{a F 1 k RET} produces @kbd{3 + 2 k}.
* Unicode characters are not unified with other Mule charsets.
As of v21.1, Emacs charsets are still not unified. This means that
characters which belong to charsets such as Latin-2, Greek, Hebrew,
etc. and the same characters in the `mule-unicode-*' charsets are
different characters, as far as Emacs is concerned. For example, text
which includes Unicode characters from the Latin-2 locale cannot be
encoded by Emacs with ISO 8859-2 coding system; and if you yank Greek
text from a buffer whose buffer-file-coding-system is greek-iso-8bit
into a mule-unicode-0100-24ff buffer, Emacs won't be able to save that
buffer neither as ISO 8859-7 nor as UTF-8.
To work around this, install some add-on package such as Mule-UCS.
* The `oc-unicode' package doesn't work with Emacs 21.
This package tries to define more private charsets than there are free