[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#16216: 24.3.50; <control> entries in `ucs-names'
From: |
Drew Adams |
Subject: |
bug#16216: 24.3.50; <control> entries in `ucs-names' |
Date: |
Sat, 21 Dec 2013 18:09:17 -0800 (PST) |
The doc for `insert-char' and `ucs-names' is sketchy. But it does at
least say that it is about inserting a character "using its UNICODE
name or its code point."
So what are all of those `<control>' character names about? Many
characters are listed in `ucs-names' as having this same "character
name", `<control>':
C-x 8 RET TAB C-g
C-h v ucs-names
C-s <control> C-s C-s...
And yet, AFAICT, there is no UNICODE character that has the name
`<control>', or even any name that has that as a substring.
http://www.unicode.org/charts/charindex.html
The seems like a bug. But since the description of `ucs-names' is
so sketchy it's hard to assert that. If this is not a bug, then:
1. In what way is `<control>' a "CHAR-NAME" for a character with any
code point? What does CHAR-NAME mean in this case?
2. What is the purpose of the multiple `<control>' CHAR-NAMEs?
3. Why are different CHAR-CODE values associated with the same
CHAR-NAME, `<control>'? What does that mean?
4. Try `C-x 8 RET <contr TAB RET'. You get only one particular
character "named" <control>, the one with code point decimal
159. That's the character named "APPLICATION PROGRAM COMMAND".
Why that one?
In GNU Emacs 24.3.50.1 (i686-pc-mingw32)
of 2013-12-16 on ODIEONE
Bzr revision: 115543 rudalics@gmx.at-20131216095844-lbjh5yerk6ff0tm7
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
`configure --prefix=/c/Devel/emacs/binary --enable-checking=yes,glyphs
'CFLAGS=-O0 -g3' LDFLAGS=-Lc:/Devel/emacs/lib
CPPFLAGS=-Ic:/Devel/emacs/include'
- bug#16216: 24.3.50; <control> entries in `ucs-names',
Drew Adams <=