From: "Bruno Félix Rezende Ribeiro" <oitofelix@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: str-to-int
Date: Tue, 07 Apr 2020 20:04:04 -0300 [thread overview]
Message-ID: <87blo2lwyj.fsf@oitofelix.com> (raw)
In-Reply-To: <87k13xdl2m.fsf@ebih.ebihd> (Emanuel Berg via Users list for the's message of "Sat, 07 Mar 2020 02:12:49 +0100")
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Hi Emanuel,
Emanuel Berg via Users list for the GNU Emacs text editor
<help-gnu-emacs@gnu.org> writes:
> ;; better than string-to-number
> (defun str-to-int (str)
> (if (string= str "0") 0
> (let ((res (string-to-number str)))
> (if (= res 0) nil (round res)) )))
> ;; (string-to-number "love and pain / it never stays the same") ; 0
> ;; ... ???
> ;;
> ;; (string-to-number "0") ; 0 ... well, correct! by all means
> ;; (str-to-int "give me all the storybook told me") ; nil
> ;; (str-to-int "the power and the glory till thy kingdom come") ; nil
> ;; (str-to-int "0") ; 0
> ;; (str-to-int "1337") ; 1337
> ;; (str-to-int "1.337") ; 1
> ;; (str-to-int "1.9") ; 2
> ;; (str-to-int "0.1") ; 0
How about (str-to-int "00") => nil?
--
Bruno Félix Rezende Ribeiro (oitofelix) [0x28D618AF]
<http://oitofelix.freeshell.org/>
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next prev parent reply other threads:[~2020-04-07 23:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-07 1:12 str-to-int Emanuel Berg via Users list for the GNU Emacs text editor
2020-04-07 23:04 ` Bruno Félix Rezende Ribeiro [this message]
2020-04-08 0:08 ` str-to-int Emanuel Berg via Users list for the GNU Emacs text editor
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