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From: Herbert Euler <herberteuler@hotmail.com>
To: The Quiet Center <thequietcenter@gmail.com>, <help-gnu-emacs@gnu.org>
Subject: RE: elisp to put commas a number?
Date: Fri, 13 Jun 2008 20:36:34 +0800	[thread overview]
Message-ID: <BAY143-W139DEEF92354481A2C514BDAAC0@phx.gbl> (raw)
In-Reply-To: <BAY143-W28720AF2BD176D5E5D69AADAAC0@phx.gbl>


Sorry, that doesn't cover the case of n = 0.  This one:

(defun commify (n)
  (if (= n 0)
      "0"
    (let ((list '()))
      (while (> n 0)
	(setq list (cons (format "%d" (% n 1000)) list)
	      n (/ n 1000)))
      (mapconcat (lambda (s) s) list ","))))

Regards,
Guanpeng Xu
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      reply	other threads:[~2008-06-13 12:36 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-12 14:36 elisp to put commas a number? The Quiet Center
2008-06-12 16:20 ` Rupert Swarbrick
2008-06-13 12:29 ` Herbert Euler
2008-06-13 12:36   ` Herbert Euler [this message]

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