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How modify numbers in a region by a multiplier?
From: |
Seweryn Kokot |
Subject: |
How modify numbers in a region by a multiplier? |
Date: |
Thu, 1 Jul 2010 13:55:11 +0000 (UTC) |
User-agent: |
Loom/3.14 (http://gmane.org/) |
Hi,
I would like to modify numbers in a region/buffer by a given multiplier.
Imagine that I have some numbers
33.444 3333 4433.4443 3344 .34234
and I want them multiplied for example by 0.1
to receive
3.3444 333.3 443.34443 334.4 .034234
I tried with this function I wrote, but it doesn't work properly.
Any idea why?
(defun my-multiply-numbers-in-region-or-buffer (multiplier)
(interactive "nGive multiplier: ")
(let (beg end object)
(if (use-region-p)
(progn
(setq object "region")
(setq beg (region-beginning))
(setq end (region-end)))
(setq object "buffer")
(setq beg (point-min))
(setq end (point-max)))
(goto-char beg)
(while (re-search-forward "\\([0-9]*\\.?[0-9]*\\)" end t)
(replace-match (format "%.3f" (* (string-to-number (match-string 1))
multiplier))))
(message "Numbers in %s modified by multiplier %s." object
multiplier)))
- How modify numbers in a region by a multiplier?,
Seweryn Kokot <=
- Re: How modify numbers in a region by a multiplier?, Juanma Barranquero, 2010/07/01
- Re: How modify numbers in a region by a multiplier?, Seweryn Kokot, 2010/07/01
- Re: How modify numbers in a region by a multiplier?, Juanma Barranquero, 2010/07/01
- Re: How modify numbers in a region by a multiplier?, Seweryn Kokot, 2010/07/01
- Re: How modify numbers in a region by a multiplier?, Juanma Barranquero, 2010/07/01
- Re: How modify numbers in a region by a multiplier?, Seweryn Kokot, 2010/07/01
- Re: How modify numbers in a region by a multiplier?, Juanma Barranquero, 2010/07/01
- Re: How modify numbers in a region by a multiplier?, Seweryn Kokot, 2010/07/02
- Re: How modify numbers in a region by a multiplier?, Juanma Barranquero, 2010/07/02
- Re: How modify numbers in a region by a multiplier?, Seweryn Kokot, 2010/07/02