From: Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: `string-to-number' 0 (was: Re: count matches in string, not region?)
Date: Wed, 26 Feb 2020 06:04:08 +0100 [thread overview]
Message-ID: <871rqigcs7.fsf_-_@ebih.ebihd> (raw)
In-Reply-To: 875zfugdip.fsf@ebih.ebihd
>> This [last] I wrote a couple of nights ago,
>> it is part of my ISBN stuff [1] that will
>> soon be a MELPA package, God willing.
>> But more on that if and when it happens...
>
> Wait, that stuff is broke! OK, I'll fix it...
> But please respond to the original question
> anyway :)
Ah, its `thing-at-point', with Biblatex
entries, e.g.
;; @book{russian-arms-transfers-to-east,
;; author = {Alexander Sergounin},
;; isbn = {0-19-829576-6},
;; publisher = {Oxford},
;; title = {Russian Arms Transfers to East Asia in the 1990s},
;; year = 1999
;; }
;;
;; @book{baa-lo-4,
;; author = {Yukito Kishiro},
;; isbn = {978-1-61262-294-1},
;; publisher = {Kodansha},
;; title = {Battle Angel Alita: The Last Order 4},
;; year = {2014 (2011)}
;; }
it reads the curly brackets as well! OK,
question to, how do you drop everything from
a string that isn't an integer?
Maybe `cl-remove-if-not' but `string-to-number'
reports 0 both for string number 0 and strings
that are not numbers:
(string-to-number "a") ; 0
(string-to-number "0") ; 0
(string-to-number "1") ; 1
From the docstring: "Return 0 if STRING cannot
be parsed as an integer or floating
point number."
Isn't that a bad idea? How do you know "a" from
the legit 0? Also, why return an integer to
signal DNC, when the purpose is to get
an integer?
--
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal
next prev parent reply other threads:[~2020-02-26 5:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-26 4:29 count matches in string, not region? Emanuel Berg via Users list for the GNU Emacs text editor
2020-02-26 4:48 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-02-26 5:04 ` Emanuel Berg via Users list for the GNU Emacs text editor [this message]
2020-02-26 6:13 ` string to digits only (was: Re: `string-to-number' 0 (was: Re: count matches in string, not region?)) Emanuel Berg via Users list for the GNU Emacs text editor
2020-02-26 7:37 ` `string-to-number' 0 VanL
2020-02-26 8:44 ` Emanuel Berg
2020-02-26 6:24 ` count matches in string, not region? Emanuel Berg via Users list for the GNU Emacs text editor
2020-02-26 19:49 ` Tassilo Horn
2020-02-26 21:22 ` Emanuel Berg via Users list for the GNU Emacs text editor
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