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Dave Love 2002-07-23 19:07:04 +00:00
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-*-text-*-
Problems, fixmes and other issues in the emacs-unicode branch
-------------------------------------------------------------
Notes by fx to record various things of variable importance. handa
needs to check them -- don't take too seriously, especially with
regard to completeness.
_Do take seriously that you don't want this CVS branch unless you're
actually working on it; you'd risk your data._ If you just want to
edit Unicode and/or unify iso-8859 et al, see the existing support and
the extra stuff at <URL:ftp://dlpx1.dl.ac.uk/fx/emacs/Mule>. Editing
support is mostly orthogonal to the internal representation.
_Do take seriously that you don't want this branch unless you're
actually working on it; you risk your data by actually using it._ If
you just want to edit Unicode and/or unify iso-8859 et al, see the
existing support and the extra stuff at
<URL:ftp://dlpx1.dl.ac.uk/fx/emacs/Mule>, mostly now in the CVS trunk.
(Editing support is mostly orthogonal to the internal representation.)
* SINGLE_BYTE_CHAR_P returns true for Latin-1 characters.
* Grok UTF-8 surrogates.
* SINGLE_BYTE_CHAR_P returns true for Latin-1 characters, which has
undesirable effects.
* Rationalize character syntax and its relationship to the Unicode
database. Specifically, the latin-N.el files aren't consistent for
common characters.
common characters (and obviously have redundancies except in
unibyte mode).
* Fontset handling and customization needs work.
* Fontset handling and customization needs work. We want to relate
fonts to scripts, probably based on the Unicode blocks. The
presence of small-repertoire 10646-encoded fonts in XFree 4 is a
pain, not currently worked round.
* Likewise for charset and coding system priorities.
* Work is also needed on charset and coding system priorities.
* The relevant bits of latin1-disp.el need porting (and probably
re-naming/updating). See also cyril-util.el.
* Quail files need work now the encoding is irrelevant. E.g. make
unified Latin pre- and post- methods.
* Quail files need more work now the encoding is irrelevant.
* What to do with the old coding categories stuff?
* Syntax for symbols &c in characters needs looking at.
* Syntax for symbols &c in characters.el needs looking at.
* The preferred-coding-system property of charsets should probably be
junked unless it can be made more useful now.
* find-coding-systems-for-charsets needs re-writing.
* find-coding-systems-for-charsets needs re-writing or removing.
* find-multibyte-characters needs looking at.
* Implement Korean cp949/UHC and any other important missing
charsets.
* Check up on tcvn and alternativnj.
* Check up on definitions of tcvn and alternativnj.
* Lazy-load tables for unify-charset somehow?
@ -59,7 +63,7 @@ support is mostly orthogonal to the internal representation.
speling and calendar, but that's not a Unicode issue.)
* Handle Unicode combining characters usefully, e.g. diacritics, and
handle more scripts specifically (á la Devanagari). There are
handle more scripts specifically (à la Devanagari). There are
issues with canonicalization.
* Bidi is a separate issue with no support currently.
@ -79,4 +83,16 @@ support is mostly orthogonal to the internal representation.
* There's currently no support for Unicode normalization.
* Populate char-width-table correctly for Unicode chanaracters and
worry about what happens when double-width charsets covering
non-CJK characters are unified.
* Emacs 20/21 .elc files are currently not loadable. It may or may
not be possible to do this properly.
* Encoding issues in babyl files/rmail need sorting out.
* Gnus still needs some attention, and we need to get changes
accepted by Gnus maintainers...
* You can grep the code for lots of fixmes.