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bug#11266: emacs 23.4 with --batch and (next-line)

From: Kevin Rodgers
Subject: bug#11266: emacs 23.4 with --batch and (next-line)
Date: Tue, 17 Apr 2012 21:05:04 -0600
User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.4; en-US; rv: Gecko/20120306 Thunderbird/3.1.20

On 4/17/12 11:11 AM, address@hidden wrote:
I recently upgraded to emacs 23.4 and found a rather obscure bug. When invoked
with –batch emacs behaves differently with the command (next-line) compared to
when it is invoked without batch. I had to switch to using (forward-line) in my
code to work around this. This behavior can be easily seen by running.

emacs –batch config.log --eval "(next-line 1)"

And you’ll see and End of buffer message. While

emacs -Q config.log --eval "(next-line 1)"

Produces no such error.

`C-h f next-line' says:

        If you are thinking of using this in a Lisp program, consider
        using `forward-line' instead.  It is usually easier to use
        and more reliable (no dependence on goal column, etc.).

And `M-: (info "(emacs)Initial Options")' reminds:

     `--batch' implies `-q' (do not load an initialization file), but
     `site-start.el' is loaded nonetheless.  It also causes Emacs to
     exit after processing all the command options.  In addition, it
     disables auto-saving except in buffers for which it has been
     explicitly requested.

Kevin Rodgers
Denver, Colorado, USA

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