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dabbrev-select-buffers-function's help unhelpful

From: Dan Jacobson
Subject: dabbrev-select-buffers-function's help unhelpful
Date: 26 Apr 2001 05:26:43 +0800
User-agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/20.7

I'm in help and it says

dabbrev-select-buffers-function's value is 

A function that selects buffers that should be searched by dabbrev.
The function should take no arguments and return a list of buffers to
search for expansions.  Have a look at `dabbrev--select-buffers' for
an example.
I click on the cheery invitation to look at dabbrev--select-buffers
dabbrev--select-buffers is a compiled Lisp function in `dabbrev'.
not documented
Oh, I see, it is telling me to see the source code.  Ok, then it
should say "see the source code for the function
dabbrev--select-buffers" instead, or else the user clicking on the
inviting hyperlink provided will be disappointed.

By the way, I did look at the source code for that function, an it's
obviously 13 times over my head.  Info doesn't talk about this part.

I want dabbrev-expand to, e.g., include "*Buffer-List*" amongst its
source areas.  How to do that?

By the way, do (apropos "--" nil) and wonder why he has to use such
a special convention.

By the way, looking at
;;; dabbrev.el --- dynamic abbreviation package

;; Copyright (C) 1985, 86, 92, 94, 96, 1997 Free Software Foundation, Inc.

;; Author: Don Morrison
;; Maintainer: Lars Lindberg <address@hidden>
;; Created: 16 Mars 1992
;; Lindberg's last update version: 5.7

one feels unsure about the date of last change.  I hear now emacs is in
CVS though.
http://www.geocities.com/jidanni Tel886-4-25854780 e-mail:restore .com.

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