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 7C9E2196000C for ; Fri, 19 Jun 2015 17:25:17 +0900 (JST) Received: from funfun.nagaokaut.ac.jp (smtp.nagaokaut.ac.jp [133.44.2.201]) by kankan.nagaokaut.ac.jp (Postfix) with ESMTP id 1811CB5D871 for ; Fri, 19 Jun 2015 17:48:13 +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 2658F97A826 for ; Fri, 19 Jun 2015 17:48:15 +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 ng4xYdsq7EJD for ; Fri, 19 Jun 2015 17:48:14 +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 B4CCE97A82B for ; Fri, 19 Jun 2015 17:48:14 +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 6BF2095243E for ; Fri, 19 Jun 2015 17:48:11 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 83A48120481; Fri, 19 Jun 2015 17:48:10 +0900 (JST) X-Original-To: ruby-core@ruby-lang.org Delivered-To: ruby-core@ruby-lang.org Received: from o2.heroku.sendgrid.net (o2.heroku.sendgrid.net [67.228.50.55]) by neon.ruby-lang.org (Postfix) with ESMTPS id 69AA1120477 for ; Fri, 19 Jun 2015 17:48:07 +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=L6HCjuTUPRnfICaAYPCG2bwqlrQ=; b=Filk1YjCm9wBBR1rcV GugLB8TCPj4AcGTLcrgqLb2AsUZW6kfJTYcUIqiygg8v26kvQW/HEzLkAkxYk+pf 01qiNgKlsW5oC7NP9/qQNMyrKHgio+SjYPz45moNUHJDqHFiPTInw4W6bDcQFrH5 MKG8itN/Se5+oDeK+ECpqDEGc= Received: by filter0623p1mdw1.sendgrid.net with SMTP id filter0623p1mdw1.26571.5583D7145 2015-06-19 08:48:03.551172788 +0000 UTC Received: from herokuapp.com (ec2-23-20-242-112.compute-1.amazonaws.com [23.20.242.112]) by ismtpd-042 (SG) with ESMTP id 14e0b00e005.3aac.3e62e0 for ; Fri, 19 Jun 2015 08:48:03 +0000 (UTC) Date: Fri, 19 Jun 2015 08:48:03 +0000 From: ryand-ruby@zenspider.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: 44232 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 11286 X-Redmine-Issue-Author: 0x0dea X-Redmine-Sender: zenspider 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS6fw+TuEoqFyPfZbB0NLCfn2Y+2P2W+v9PFyb 9a+kMKPJaYDos1cGkY4R16tLd4a8BcItzxV5RifHSzEfVeoUY1jREYylITbwhJC5hgljDuqD8Ak+hx NbBhqT4oUMnyy5ReX2QGv0BNs+0+EZCL0Qni X-ML-Name: ruby-core X-Mail-Count: 69678 Subject: [ruby-core:69678] [Ruby trunk - Feature #11286] [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 updated by Ryan Davis. I rather like this proposal. I hope it gets accepted. ---------------------------------------- Feature #11286: [PATCH] Add case equality arity to Enumerable's sequence predicates. https://bugs.ruby-lang.org/issues/11286#change-53047 * 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/