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is insert(backspace and overwrite character) possible?


From: Merciadri Luca
Subject: is insert(backspace and overwrite character) possible?
Date: Sat, 08 May 2010 22:01:03 +0200
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.2 (gnu/linux)

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Hi,

In some definition, I have

==
(insert "-- \n")
==

Let's say that the text is

==
dummy text

==

It then writes
==
dummy text
- --

==

That's nice, but my text is not that one, unfortunately. Let's say
that the text is

==
dummy text
- - --
==

How can I make an `insert' to overwrite the first `-' and the related
space? With

==
dummy text
- - --
==

I would like to have

==
dummy text
- --
==

by simply calling insert. Is it possible? I know that this is possible
in C language.

Thanks.

- -- 
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
- -- 

Love is real only when a person can sacrifice himself for
 another. (Leo Tolstoy)
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