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revision 1.1.2.3 by fx, Fri Jul 5 18:41:43 2002 UTC revision 1.1.2.4 by fx, Tue Jul 23 19:07:04 2002 UTC
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1                                                                     -*-text-*-                                                                     -*-text-*-
2    
3  Problems, fixmes and other issues in the emacs-unicode branch  Problems, fixmes and other issues in the emacs-unicode branch
4    -------------------------------------------------------------
5    
6  Notes by fx to record various things of variable importance.  handa  Notes by fx to record various things of variable importance.  handa
7  needs to check them -- don't take too seriously, especially with  needs to check them -- don't take too seriously, especially with
8  regard to completeness.  regard to completeness.
9    
10  _Do take seriously that you don't want this CVS branch unless you're  _Do take seriously that you don't want this branch unless you're
11  actually working on it; you'd risk your data._  If you just want to  actually working on it; you risk your data by actually using it._  If
12  edit Unicode and/or unify iso-8859 et al, see the existing support and  you just want to edit Unicode and/or unify iso-8859 et al, see the
13  the extra stuff at <URL:ftp://dlpx1.dl.ac.uk/fx/emacs/Mule>.  Editing  existing support and the extra stuff at
14  support is mostly orthogonal to the internal representation.  <URL:ftp://dlpx1.dl.ac.uk/fx/emacs/Mule>, mostly now in the CVS trunk.
15    (Editing support is mostly orthogonal to the internal representation.)
16    
17   * SINGLE_BYTE_CHAR_P returns true for Latin-1 characters.   * SINGLE_BYTE_CHAR_P returns true for Latin-1 characters, which has
18       undesirable effects.
  * Grok UTF-8 surrogates.  
19    
20   * Rationalize character syntax and its relationship to the Unicode   * Rationalize character syntax and its relationship to the Unicode
21     database.  Specifically, the latin-N.el files aren't consistent for     database.  Specifically, the latin-N.el files aren't consistent for
22     common characters.     common characters (and obviously have redundancies except in
23       unibyte mode).
24    
25   * Fontset handling and customization needs work.   * Fontset handling and customization needs work.  We want to relate
26       fonts to scripts, probably based on the Unicode blocks.  The
27       presence of small-repertoire 10646-encoded fonts in XFree 4 is a
28       pain, not currently worked round.
29    
30   * Likewise for charset and coding system priorities.   * Work is also needed on charset and coding system priorities.
31    
32   * The relevant bits of latin1-disp.el need porting (and probably   * The relevant bits of latin1-disp.el need porting (and probably
33     re-naming/updating).  See also cyril-util.el.     re-naming/updating).  See also cyril-util.el.
34    
35   * Quail files need work now the encoding is irrelevant.  E.g. make   * Quail files need more work now the encoding is irrelevant.
    unified Latin pre- and post- methods.  
36    
37   * What to do with the old coding categories stuff?   * What to do with the old coding categories stuff?
38    
39   * Syntax for symbols &c in characters needs looking at.   * Syntax for symbols &c in characters.el needs looking at.
40    
41   * The preferred-coding-system property of charsets should probably be   * The preferred-coding-system property of charsets should probably be
42     junked unless it can be made more useful now.     junked unless it can be made more useful now.
43    
44   * find-coding-systems-for-charsets needs re-writing.   * find-coding-systems-for-charsets needs re-writing or removing.
45    
46   * find-multibyte-characters needs looking at.   * find-multibyte-characters needs looking at.
47    
48   * Implement Korean cp949/UHC and any other important missing   * Implement Korean cp949/UHC and any other important missing
49     charsets.     charsets.
50    
51   * Check up on tcvn and alternativnj.   * Check up on definitions of tcvn and alternativnj.
52    
53   * Lazy-load tables for unify-charset somehow?   * Lazy-load tables for unify-charset somehow?
54    
# Line 59  support is mostly orthogonal to the inte Line 63  support is mostly orthogonal to the inte
63     speling and calendar, but that's not a Unicode issue.)     speling and calendar, but that's not a Unicode issue.)
64    
65   * Handle Unicode combining characters usefully, e.g. diacritics, and   * Handle Unicode combining characters usefully, e.g. diacritics, and
66     handle more scripts specifically (á la Devanagari).  There are     handle more scripts specifically (à la Devanagari).  There are
67     issues with canonicalization.     issues with canonicalization.
68    
69   * Bidi is a separate issue with no support currently.   * Bidi is a separate issue with no support currently.
# Line 79  support is mostly orthogonal to the inte Line 83  support is mostly orthogonal to the inte
83    
84   * There's currently no support for Unicode normalization.   * There's currently no support for Unicode normalization.
85    
86     * Populate char-width-table correctly for Unicode chanaracters and
87       worry about what happens when double-width charsets covering
88       non-CJK characters are unified.
89    
90     * Emacs 20/21 .elc files are currently not loadable.  It may or may
91       not be possible to do this properly.
92    
93     * Encoding issues in babyl files/rmail need sorting out.
94    
95     * Gnus still needs some attention, and we need to get changes
96       accepted by Gnus maintainers...
97    
98   * You can grep the code for lots of fixmes.   * You can grep the code for lots of fixmes.

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