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Re: Converting an Integer into Human Readable String
From: |
Eli Zaretskii |
Subject: |
Re: Converting an Integer into Human Readable String |
Date: |
Fri, 08 Apr 2011 18:19:01 +0300 |
> From: "Pascal J. Bourguignon" <pjb@informatimago.com>
> Date: Fri, 08 Apr 2011 13:41:30 +0200
>
> Instead, you could have had some fun, and implement yourself the
> required function. Well, now you've got only what you merit, here I
> had all the fun, you can have the function:
>
> (format-human-readable-big-number 123456789012
> *normal-format*
> *exceptional-format*
> "B" t :binary)
> --> " 114.978 GiB"
>
>
> Now, you may call this function in the places of interest in emacs.
Wow! I've just installed in Emacs a much more modest variant
(reproduced below for those who don't live on the bleeding edge).
(defun file-size-human-readable (file-size &optional flavor)
"Produce a string showing FILE-SIZE in human-readable form.
Optional second argument FLAVOR controls the units and the display format:
If FLAVOR is nil or omitted, each kilobyte is 1024 bytes and the produced
suffixes are \"k\", \"M\", \"G\", \"T\", etc.
If FLAVOR is `si', each kilobyte is 1000 bytes and the produced suffixes
are \"k\", \"M\", \"G\", \"T\", etc.
If FLAVOR is `iec', each kilobyte is 1024 bytes and the produced suffixes
are \"KiB\", \"MiB\", \"GiB\", \"TiB\", etc."
(let ((power (if (or (null flavor) (eq flavor 'iec))
1024.0
1000.0))
(post-fixes
;; none, kilo, mega, giga, tera, peta, exa, zetta, yotta
(list "" "k" "M" "G" "T" "P" "E" "Z" "Y")))
(while (and (>= file-size power) (cdr post-fixes))
(setq file-size (/ file-size power)
post-fixes (cdr post-fixes)))
(format "%.0f%s%s" file-size
(if (and (eq flavor 'iec) (string= (car post-fixes) "k"))
"K"
(car post-fixes))
(if (eq flavor 'iec) "iB" ""))))
- RE: Converting an Integer into Human Readable String, (continued)
- Re: Converting an Integer into Human Readable String, Eli Zaretskii, 2011/04/07
- Re: Converting an Integer into Human Readable String, Thierry Volpiatto, 2011/04/07
- Message not available
- Message not available
- Re: Converting an Integer into Human Readable String, Thierry Volpiatto, 2011/04/08
- Re: Converting an Integer into Human Readable String, Eli Zaretskii, 2011/04/08
- Re: Converting an Integer into Human Readable String, Thierry Volpiatto, 2011/04/08
Re: Converting an Integer into Human Readable String, Pascal J. Bourguignon, 2011/04/08
- Re: Converting an Integer into Human Readable String,
Eli Zaretskii <=
Re: Converting an Integer into Human Readable String, Eli Zaretskii, 2011/04/09
Message not available