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Re: I want an unsaveable buffer

From: Kevin Rodgers
Subject: Re: I want an unsaveable buffer
Date: Mon, 04 Aug 2014 23:28:24 -0600
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:24.0) Gecko/20100101 Thunderbird/24.6.0

On 8/4/14 9:48 AM, Doug Lewan wrote:
I work in *scratch* a lot, /and/ I save (C-xC-s) very frequently just as a matter of 
habit. The consequence is that I find myself typing to the "File to save in:" 
prompt when I just want to continue working.

Turning off or remapping C-xC-s in *scratch* is easy enough, but the obviously 
useful generalization is to turn saving off in any new buffer not associated 
with a regular file. (Writing buffer contents would remain, but you already 
have to think when you want that.)

The natural route is to write a hook for buffer creation. The only hook I can 
find for that is buffer-list-update-hook which is also run on renaming, 
deletion, etc. I can imagine grabbing the output of (backtrace) to look at how 
the hook was called, but that no longer feels natural to me.

Does anyone know of a natural approach to this?

(defadvice save-buffer (around interactive-no-visited-file-name activate)
  "When called interactively, disable for buffers not visiting a file."
  (when (or (not (called-interactively-p 'any))

Kevin Rodgers
Denver, Colorado, USA

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