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From: daniel@bigwalter.net (Daniel Jensen)
To: help-gnu-emacs@gnu.org
Subject: Re: about register
Date: Sat, 21 Apr 2007 17:37:50 +0200	[thread overview]
Message-ID: <87abx1kab5.fsf@orme.bigwalter.net> (raw)
In-Reply-To: 462a0f65$0$27366$ba4acef3@news.orange.fr

Le TeXnicien de Surface <texnicien.de.surface@chezmoi.eur> writes:

> I'd like to use the following command:
> (defun complete-pid ()
>   (interactive)
>   (goto-char 0)
>   (number-to-register 1 "A")
>   (while (re-search-forward "p=PID=0" nil t)
>     (insert-register "A")
>     (increment-register 1 "A")
> ))
>
> but when emacs finds the first `p=PID=' it says:
> `register does not contain a number'
> and stops.

You are using strings as register names, this is why it does not work.
The problem lies in how registers are implemented; they are compared
behind the scenes with the eq predicate. However, strings are not eq.
Use characters instead (e.g., ?A), or perhaps better do away with the
register and use a variable.

  reply	other threads:[~2007-04-21 15:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-21 13:19 about register Le TeXnicien de Surface
2007-04-21 15:37 ` Daniel Jensen [this message]
2007-04-21 19:02   ` Le TeXnicien de Surface
2007-04-22 10:42     ` Daniel Jensen
2007-04-22 19:57       ` Le TeXnicien de Surface

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