From: "Drew Adams" <drew.adams@oracle.com>
To: <emacs-devel@gnu.org>
Subject: `quit_char', `set-quit-char', and `set-input-mode'
Date: Fri, 11 May 2012 16:55:46 -0700 [thread overview]
Message-ID: <5078FDFD9C3A4C45AA44B3768CBAA2B1@us.oracle.com> (raw)
* Variable `quit-char' is only in the C code. There is no such Lisp variable.
* Function `set-quit-char' exists, but is not even mentioned in the Elisp
manual.
* Function `set-input-mode' is mentioned in the manual, but it just seems more
roundabout than `set-quit-char'.
Why isn't `set-quit-char' documented as the way to set the quit character? Is
there some advantage to using `set-input-mode' for this?
Why don't we have a Lisp variable for this (even a user option perhaps)? Why
must we use special functions to set this character, rather than just using
`set' with a variable?
If we had a variable, then code could check whether some event was equal to the
quit character, instead of checking only the hard-coded value 7 (C-g). If
something changes the `quit_char' from C-g to something else, then code testing
7 will no longer DTRT, no?
I'm guessing there are good reasons for some or all of these things - reasons
that would help me understand better. Explanation appreciated.
next reply other threads:[~2012-05-11 23:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-11 23:55 Drew Adams [this message]
2012-05-12 9:57 ` `quit_char', `set-quit-char', and `set-input-mode' Thien-Thi Nguyen
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