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From: Nikolaj Schumacher <me@nschum.de>
To: Decebal <CLDWesterhof@gmail.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Extra info in modeline (tip and questions)
Date: Wed, 15 Apr 2009 15:23:43 +0200	[thread overview]
Message-ID: <m21vru59uo.fsf@nschum.de> (raw)
In-Reply-To: <f0e47524-4ddd-4b13-935b-a474e52bfcdb@r33g2000yqn.googlegroups.com> (Decebal's message of "Wed, 15 Apr 2009 04:06:28 -0700 (PDT)")

Decebal <CLDWesterhof@gmail.com> wrote:

> I understand that this is the default way to handle a break out of a
> loop, but I found it ugly, and I expect it is also expensive.

Ugly yes, but not that expensive.  Depending on the list length testing
the additional not-ready variable can even be slower.

If you use CL macros, something can be done about the ugliness, though.
It could be written like this

(defun get-mode-line-struct (type)
  (dotimes (i (length mode-line-array))
    (when (equal type (mode-line-struct-type (aref mode-line-array i)))
      (return (aref mode-line-array i)))))


You're using a vector, probably because you're used to it.  Since you're
not doing random-access, a list would be more "natural" in lisp.

(defun get-mode-line-struct (type)
  (dolist (s mode-line-array)
    (when (equal type (mode-line-struct-type s))
      (return s))))


regards,
Nikolaj Schumacher




  reply	other threads:[~2009-04-15 13:23 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-14 14:03 Extra info in modeline (tip and questions) Decebal
2009-04-14 15:54 ` Nikolaj Schumacher
     [not found] ` <mailman.5329.1239724470.31690.help-gnu-emacs@gnu.org>
2009-04-15  5:53   ` Decebal
2009-04-15 13:14     ` Nikolaj Schumacher
     [not found]     ` <mailman.5377.1239801271.31690.help-gnu-emacs@gnu.org>
2009-04-28  7:55       ` Decebal
2009-04-28 10:27         ` Decebal
2009-04-28  8:04       ` Decebal
2009-04-28  8:23         ` Decebal
2009-04-15 11:06 ` Decebal
2009-04-15 13:23   ` Nikolaj Schumacher [this message]
     [not found]   ` <mailman.5379.1239801830.31690.help-gnu-emacs@gnu.org>
2009-04-15 16:13     ` Decebal

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