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Re: auto-insert-mode: define-auto-insert condition problem

From: Michael Heerdegen
Subject: Re: auto-insert-mode: define-auto-insert condition problem
Date: Fri, 15 Feb 2013 21:19:48 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux)

Zhiming Wang <> writes:

> To use the auto insert mode, I have the following lines in my .emacs file:
> (require 'autoinsert)
> (auto-insert-mode)
> (setq auto-insert-directory "~/.mytemplates")
> (setq auto-insert-query nil)
> (define-auto-insert "\.c" "c.c")
> (define-auto-insert "\.tex" "latex.tex")
> ;;; other templates...
> This works fine when I create .c file, .tex file, etc. However, when I
> create files with extensions beginning with .c, .tex, etc. templates
> are also loaded. For instance, when creating foo.cpp, the c.c template
> is automatically loaded, which is not expected. Noticing this behavior
> I tried .text, and latex.tex template is loaded.
> So, is there any way to strengthen the define-auto-insert CONDITION so
> that auto insert is activated only upon the exact extensions?

I don't use "auto-insert", but I think I can help.

What you need is (from elisp manual: Regexp Backslash):

     matches the empty string, but only at the end of the buffer or
     string being matched against.

You would use it like that:

(define-auto-insert "\.c\\'" "c.c")
(define-auto-insert "\.tex\\'" "latex.tex")

Note that the backslash in `\'' must be quoted inside the string
delimiters - otherwise it would act as a quoting character on the
following character.

See (elisp) Regular Expressions for reference.  Please also have a look
at the definition of `auto-insert-alist' (this is the list that
`define-auto-insert' manipulates) for more examples.  Note that you can
also "match" the major mode instead of the file name.  I.e., something
like that should work as well:

(define-auto-insert 'latex-mode "latex.tex")



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