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From: "José A. Romero L." <escherdragon@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Re: How to put this in a macro
Date: Sat, 17 Apr 2010 05:13:15 -0700 (PDT)	[thread overview]
Message-ID: <862b09d2-7bac-4807-b471-5b177facdb2c@r1g2000yqb.googlegroups.com> (raw)
In-Reply-To: 87633qwd5l.fsf@linux-lqcw.site

On 17 Kwi, 13:07, Cecil Westerhof <Ce...@decebal.nl> wrote:
> José A. Romero L. <escherdra...@gmail.com> writes:
(...)
> >          (progn
> >            (set ,start-sym (or start (point-min)))
> >            (set ,end-sym (or end (point-max))))))
>
> Almost. It looks like the following does what I want:
(...)
>          (progn
>            (set ,start-sym (or ,start-sym (point-min)))
>            (set ,end-sym (or ,end-sym (point-max))))))
>
> In the or's the parameter is used instead of the hard variables start
> and end.

Oops, sorry, that was a mind shortcut happening too soon. In any case
it should be rather:

(...)
    (progn
      (set ,start-sym (or (symbol-value ,start-sym) (point-min)))
      (set ,start-sym (or (symbol-value ,end-sym) (point-max))))

as you won't be passing nil as one of the arguments to the macro.

Cheers,
--
José A. Romero L.
escherdragon at gmail
"We who cut mere stones must always be envisioning cathedrals."
(Quarry worker's creed)


  parent reply	other threads:[~2010-04-17 12:13 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-16 21:13 How to put this in a macro Cecil Westerhof
2010-04-16 23:28 ` José A. Romero L.
2010-04-17  3:08 ` Barry Margolin
2010-04-17  6:38   ` Cecil Westerhof
2010-04-17 10:30     ` José A. Romero L.
2010-04-17 11:07       ` Cecil Westerhof
2010-04-17 11:40         ` Cecil Westerhof
2010-04-17 15:15           ` José A. Romero L.
2010-04-17 16:49             ` Barry Margolin
2010-04-17 16:57               ` José A. Romero L.
2010-04-17 21:41                 ` Barry Margolin
2010-04-17 19:38             ` Cecil Westerhof
2010-04-17 23:58               ` José A. Romero L.
2010-04-17 12:13         ` José A. Romero L. [this message]
2010-04-17 15:14       ` Barry Margolin
2010-04-17 16:49         ` José A. Romero L.
2010-04-17 15:12     ` Barry Margolin
2010-04-18  7:50 ` Pascal J. Bourguignon

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