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82 lines
2.8 KiB
Text
82 lines
2.8 KiB
Text
-*-text-*-
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Problems, fixmes and other issues in the emacs-unicode branch
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Notes by fx to record various things of variable importance. handa
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needs to check them -- don't take too seriously, especially with
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regard to completeness.
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_Do take seriously that you don't want this CVS branch unless you're
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actually working on it; you'd risk your data._ If you just want to
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edit Unicode and/or unify iso-8859 et al, see the existing support and
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the extra stuff at <URL:ftp://dlpx1.dl.ac.uk/fx/emacs/Mule>. Editing
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support is mostly orthogonal to the internal representation.
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* SINGLE_BYTE_CHAR_P returns true for Latin-1 characters.
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* Grok UTF-8 surrogates.
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* Rationalize character syntax and its relationship to the Unicode
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database. Specifically, the latin-N.el files aren't consistent for
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common characters.
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* Fontset handling and customization needs work.
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* Likewise for charset and coding system priorities.
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* The relevant bits of latin1-disp.el need porting (and probably
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re-naming/updating). See also cyril-util.el.
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* Quail files need work now the encoding is irrelevant. E.g. make
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unified Latin pre- and post- methods.
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* What to do with the old coding categories stuff?
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* Syntax for symbols &c in characters needs looking at.
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* The preferred-coding-system property of charsets should probably be
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junked unless it can be made more useful now.
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* find-coding-systems-for-charsets needs re-writing.
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* find-multibyte-characters needs looking at.
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* Implement Korean cp949/UHC and any other important missing
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charsets.
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* Check up on tcvn and alternativnj.
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* Lazy-load tables for unify-charset somehow?
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* Translation tables for {en,de}code currently aren't supported.
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* Defining CCL coding systems currently doesn't work.
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* iso-2022 charsets get unified on i/o.
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* Revisit locale processing: look at treating the language and
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charset parts separately. (Language should affect things like
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speling and calendar, but that's not a Unicode issue.)
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* Handle Unicode combining characters usefully, e.g. diacritics, and
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handle more scripts specifically (<28> la Devanagari). There are
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issues with canonicalization.
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* Bidi is a separate issue with no support currently.
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* DTRT with X keysyms. We should get the right unicode for a given
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keysym, not decode raw bytes in some ill-defined coding system.
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(fx has some data on keysyms v. unicodes.)
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* We need tabular input methods, e.g. for maths symbols. (Not
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specific to Unicode.)
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* Need multibyte text in menus, e.g. for the above. (Not specific to
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Unicode.)
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* Still can't have case pairs which have different byte lengths --
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can that be fixed for Turkish, at least?
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* There's currently no support for Unicode normalization.
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* You can grep the code for lots of fixmes.
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