-*-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?
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.
* 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.