From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: poffice@blade.nagaokaut.ac.jp Delivered-To: poffice@blade.nagaokaut.ac.jp Received: from kankan.nagaokaut.ac.jp (kankan.nagaokaut.ac.jp [133.44.2.24]) by blade.nagaokaut.ac.jp (Postfix) with ESMTP id 796D1196000C for ; Fri, 19 Jun 2015 15:49:12 +0900 (JST) Received: from funfun.nagaokaut.ac.jp (funfun.nagaokaut.ac.jp [133.44.2.201]) by kankan.nagaokaut.ac.jp (Postfix) with ESMTP id 56920B5D871 for ; Fri, 19 Jun 2015 16:12:07 +0900 (JST) Received: from funfun.nagaokaut.ac.jp (localhost.nagaokaut.ac.jp [127.0.0.1]) by funfun.nagaokaut.ac.jp (Postfix) with ESMTP id 32E9197A832 for ; Fri, 19 Jun 2015 16:12:09 +0900 (JST) X-Virus-Scanned: amavisd-new at nagaokaut.ac.jp Authentication-Results: funfun.nagaokaut.ac.jp (amavisd-new); dkim=fail (1024-bit key) reason="fail (message has been altered)" header.d=sendgrid.me Received: from funfun.nagaokaut.ac.jp ([127.0.0.1]) by funfun.nagaokaut.ac.jp (funfun.nagaokaut.ac.jp [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YoN-iddImRGP for ; Fri, 19 Jun 2015 16:12:09 +0900 (JST) Received: from voscc.nagaokaut.ac.jp (voscc.nagaokaut.ac.jp [133.44.1.100]) by funfun.nagaokaut.ac.jp (Postfix) with ESMTP id EB9F597A82B for ; Fri, 19 Jun 2015 16:12:08 +0900 (JST) Received: from neon.ruby-lang.org (neon.ruby-lang.org [221.186.184.75]) by voscc.nagaokaut.ac.jp (Postfix) with ESMTP id B68F495243E for ; Fri, 19 Jun 2015 16:12:06 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id BAA8F120488; Fri, 19 Jun 2015 16:12:05 +0900 (JST) X-Original-To: ruby-core@ruby-lang.org Delivered-To: ruby-core@ruby-lang.org Received: from o10.shared.sendgrid.net (o10.shared.sendgrid.net [173.193.132.135]) by neon.ruby-lang.org (Postfix) with ESMTPS id C94AC120477 for ; Fri, 19 Jun 2015 16:12:01 +0900 (JST) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sendgrid.me; h=from:to:references:subject:mime-version:content-type:content-transfer-encoding:list-id; s=smtpapi; bh=a8dtke2ITyUofM+lxdyWpJcSarY=; b=XraNi3T/CzRVIa8nQb XBlFJNB1/BeDr9VTAC+7w8EC6/XvLAxgVRpGhVfimGXkScDJCyGuT0scUm1Zs60/ LE6txNCjUGBcJ6ZMF/XRau2b63yJclg+t+A0aPxjmTd1Lgc6Nz5cFT56S+izVAsi LskbfimOm2SwzCf5HioXfj4WE= Received: by filter0633p1mdw1.sendgrid.net with SMTP id filter0633p1mdw1.9802.5583C0BC4 2015-06-19 07:11:56.525717796 +0000 UTC Received: from herokuapp.com (ec2-54-146-216-117.compute-1.amazonaws.com [54.146.216.117]) by ismtpd-052 (SG) with ESMTP id 14e0aa8dfdf.23ec.3048ec for ; Fri, 19 Jun 2015 07:11:56 +0000 (UTC) Date: Fri, 19 Jun 2015 07:11:56 +0000 From: 0x0dea+redmine@gmail.com To: ruby-core@ruby-lang.org Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Redmine-MailingListIntegration-Message-Ids: 44226 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 11286 X-Redmine-Issue-Author: 0x0dea X-Redmine-Sender: 0x0dea X-Mailer: Redmine X-Redmine-Host: bugs.ruby-lang.org X-Redmine-Site: Ruby Issue Tracking System X-Auto-Response-Suppress: All Auto-Submitted: auto-generated X-SG-EID: ync6xU2WACa70kv/Ymy4QrNMhiuLXJG8OTL2vJD1yS5NEOsb3eTCh09RgQWSFiVkC08Pt+tOQmDdgC wIgnExLGRuBlZLbZ+qg10QjLcDIiTMoLF9LmdohDM3mfu92wfUAuZPhalS01QWfof0RgVNgfhNaw3O rC3XEG3RrHQhJ3pP9TEaAY3yN1zuyr64BRPm X-ML-Name: ruby-core X-Mail-Count: 69675 Subject: [ruby-core:69675] [Ruby trunk - Feature #11286] [Open] [PATCH] Add case equality arity to Enumerable's sequence predicates. X-BeenThere: ruby-core@ruby-lang.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Ruby developers List-Id: Ruby developers List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" Issue #11286 has been reported by D.E. Akers. ---------------------------------------- Feature #11286: [PATCH] Add case equality arity to Enumerable's sequence predicates. https://bugs.ruby-lang.org/issues/11286 * Author: D.E. Akers * Status: Open * Priority: Normal * Assignee: ---------------------------------------- ## Proposal It is proposed that `Enumerable`'s sequence predicates (`#all?`, `#any?`, `#none?`, and `#one?`) be augmented to return, in the case of a single argument, whether their query holds when each element is supplied to the argument's `#===` method. ## Rationale `Enumerable#grep` filters by case equality, allowing us to write very natural and expressive code: ```ruby strs.select { |str| /foo/ === str } strs.grep(/foo/) nums.select { |num| (5..10) === num } nums.grep(5..10) ``` In addition to taking advantage of the versatility of case equality, it lets us do away with the syntactic noise incurred by opening a block. `#grep` is a very nice method! Let's make `#all?` and friends more like `#grep`. ---Files-------------------------------- 0001-enum.c-add-case-equality-arity-to-sequence-predicates.patch (10 KB) -- https://bugs.ruby-lang.org/