commit: Import and extend GNU's descr-text.el, supporting prefix argument for C-x =

[Aidan Kehoe]

As I commented back in December 2006,
http://mid.gmane.org/17780.36600.227379.426413@parhasard.net , GNU’s
#'what-cursor-position behaviour when handed a prefix argument is nice. This
imports that, adding support for Unihan.txt and db/dbm caches. You’ll need
to set describe-char-unihan-file and call
#'unidata-initialize-unicodedata-database on it at least once; I suspect the
latter function should be a command. Will not work if your XEmacs doesn’t
have DBM or DB support.

 Ar an cúigiú lá is fiche de mí Bealtaine, scríobh Aidan Kehoe: 

 > changeset:   4468:a78d697ccd2c832f5770b564e944a88b4f1f2549
 > tag:         tip
 > user:        Aidan Kehoe <kehoea at parhasard.net>
 > date:        Sun May 25 21:11:35 2008 +0200
 > files:       lisp/ChangeLog lisp/descr-text.el lisp/mule/mule-cmds.el lisp/simple.el lisp/syntax.el lisp/unicode.el
 > description:
 > Import and extend GNU's descr-text.el, supporting prefix argument for C-x =
 > 
 > 2008-05-25  Aidan Kehoe  <kehoea at parhasard.net>
 > 
 > 	* descr-text.el: New.
 > 	Taken from GNU's GPLV2 version of 2007-02-14, with modifications
 > 	for XEmacs support and extensions for Unihan.txt support and
 > 	db/dbm caches.
 > 	* simple.el (what-cursor-position):
 > 	Support an optional prefix argument, as does GNU, calling
 > 	#'describe-char to giving more detail on the character at point,
 > 	notably from UnicodeData and (in our case, optionally) Unihan.txt.
 > 	* syntax.el (syntax-after):
 > 	Make this available for the sake of #'describe-char.
 > 	* mule/mule-cmds.el (iso-2022-control-alist):
 > 	Make this available, for the sake of #'encoded-string-description
 > 	and #'describe-char.
 > 	* mule/mule-cmds.el (encoded-string-description):
 > 	Make this available, for the sake of #'describe-char.
 > 	* unicode.el (unicode-error-default-translation-table):
 > 	Make this a char table of type generic, not of type char. Makes it
 > 	possible to have the relevant logic in #'describe-char reasonably
 > 	clear; also, and this is undocumented, makes it much easier to
 > 	implement #'frob-unicode-errors-region. I should document this,
 > 	and revise #'frob-unicode-errors-region.

-- 
¿Dónde estará ahora mi sobrino Yoghurtu Nghé, que tuvo que huir
precipitadamente de la aldea por culpa de la escasez de rinocerontes?