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Re: str-to-int
From: |
Bruno Félix Rezende Ribeiro |
Subject: |
Re: str-to-int |
Date: |
Tue, 07 Apr 2020 20:04:04 -0300 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) |
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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