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Re: A subtle question about naming

From: David Z Maze
Subject: Re: A subtle question about naming
Date: Tue, 12 Sep 2006 17:24:04 -0400
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (usg-unix-v)

"jronald" <> writes:

> Why use auto-mode-alist, but not auto-mode-list? 

Probably because it's an alist, not just a list: each item in the list
is a cons cell whose car is the value to match against and whose cdr
is the actual value.  You might see info://elisp/Association+Lists for
more details.  The key implication of this is that I can use something
like (cdr (assoc "\\.c\\'" auto-mode-alist)) to find out what mode
processes C source files; more likely, I'd use the more involved
assoc-default function.

This isn't particularly specific to Gnus (the Emacs news/mail reader),
though M-x apropos gnus.*alist finds many things; it might better
belong on


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