From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Newsgroups: gmane.emacs.help Subject: Re: How to read an integer from the minibuffer Date: Sat, 13 Nov 2021 08:32:09 +0100 Message-ID: <20211113073209.GA15896@tuxteam.de> References: <993162c2a13d5ea3b0aa@heytings.org> <87lf1u9pdj.fsf@zoho.eu> <993162c2a1f85349fcfa@heytings.org> <87fss29on7.fsf@zoho.eu> <87v90x5g7p.fsf@zoho.eu> <20211112202423.GA25370@tuxteam.de> <87ilwx5b4f.fsf@zoho.eu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="FL5UXtIhxfXey3p5" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="36859"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/1.5.21 (2010-09-15) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sat Nov 13 08:33:58 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mlnXy-0009Sd-LK for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 13 Nov 2021 08:33:58 +0100 Original-Received: from localhost ([::1]:42106 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mlnXx-0004ZZ-7t for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 13 Nov 2021 02:33:57 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:38058) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mlnWI-00037o-Qw for help-gnu-emacs@gnu.org; Sat, 13 Nov 2021 02:32:15 -0500 Original-Received: from mail.tuxteam.de ([5.199.139.25]:50692) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.90_1) (envelope-from ) id 1mlnWG-0002Cl-4K for help-gnu-emacs@gnu.org; Sat, 13 Nov 2021 02:32:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tuxteam.de; s=mail; h=From:In-Reply-To:Content-Type:MIME-Version:References:Message-ID:Subject:To:Date; bh=cszOg1j5oiQzQr1d1c2yQaOiq4gylQF+QdtgELJyMPY=; b=o2zKrd3hsSSaIdaKVz88O0Y84dC0yYX6/O8Bk1Kv+p2FekqWv9pwkoJaX9G2sy8pYqLRNJqoWIfeRTAcNeAdCAW4NRTzMKl4LDfEtb2u1EzUx5jaWjDuuD6qc4Vnx1pK1PRIxL2gurEhxVN0w+sglQklVLEVoTUGPspS2cQqWzF96G70nPk6U1EU8vTi9sAMSFUhjjhyjv9yEDQBfmTYt31fV8mcVMNZBO/wkenUI1jo7oZz7hZnFX5Vt/11eQHv0oXYwxqCGBFbpNzKBssVwUsQ0FHJnmQlt4Ag3RpbSOjbLn2ikGMMlDHnu/dnGIrkZgsMESdqPu02ZT7QAAat2Q==; Original-Received: from tomas by mail.tuxteam.de with local (Exim 4.80) (envelope-from ) id 1mlnWD-0004Ci-SI for help-gnu-emacs@gnu.org; Sat, 13 Nov 2021 08:32:09 +0100 Content-Disposition: inline In-Reply-To: Received-SPF: pass client-ip=5.199.139.25; envelope-from=tomas@tuxteam.de; helo=mail.tuxteam.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:134560 Archived-At: --FL5UXtIhxfXey3p5 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Nov 13, 2021 at 09:46:10AM +0300, Jean Louis wrote: > * Emanuel Berg via Users list for the GNU Emacs text editor [2021-11-13 00:21]: > > tomas wrote: > >=20 > > > Why not simply numberp? > > > > > > (and (numberp s) (string-to-number s)) > >=20 > > King :) >=20 > (let ((s " 123")) > (and (numberp s) (string-to-number s))) =E2=87=92 nil So leading spaces are to be ignored, OK. What about trailing spaces? Exponential notation? Bases other than 10? I think it's time you specify what a number is /for you/. Then compare that with what a number is /for numberp/. Then rewrite your program :) > Example is here: >=20 > (let ((s " 123n")) > (string-to-number "123n")) =E2=87=92 123 Ah, but (numberp "123n") -> nil, so the and above would work. Or, perhaps, "123n" should be a number? This is unclear from what you say. At least to me. Cheers - t --FL5UXtIhxfXey3p5 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAmGPafkACgkQBcgs9XrR2kY1QQCfam5kWui64uwjD6Ft4w9/RQ+U kLcAn2xnfpfnc5ldnBuPv2mJeNnfX8I6 =CgOf -----END PGP SIGNATURE----- --FL5UXtIhxfXey3p5--