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 DF12D196000C for ; Fri, 19 Jun 2015 22:59:35 +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 0FF01B5D944 for ; Fri, 19 Jun 2015 23:22:34 +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 CC11B97A832 for ; Fri, 19 Jun 2015 23:22:36 +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 DD9qmK-vE_ea for ; Fri, 19 Jun 2015 23:22:36 +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 90B3797A82B for ; Fri, 19 Jun 2015 23:22:36 +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 858EE95243E for ; Fri, 19 Jun 2015 23:22:32 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 03B18120481; Fri, 19 Jun 2015 23:22:32 +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 AE2EE120476 for ; Fri, 19 Jun 2015 23:22:27 +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=LR/R3XSQchLdXCpBoD8aEANpwk0=; b=eylmK51Xr0f4Aea4To ciT1REkRiq5zzonCfWXVeRCWDjRf135gEmCbM4DHjwX2NrE2krsp78jg4hfuCnnx SUvwk08A7XcpnkouirJJCaF5b1hHjYO5/ElVB4ByB6iZcP/p0zAyw99Ep9HJHTmq tLJ1gKiWUCAyIMhMDilg29Sa0= Received: by filter0422p1mdw1.sendgrid.net with SMTP id filter0422p1mdw1.3666.5584259C14 2015-06-19 14:22:20.42976941 +0000 UTC Received: from herokuapp.com (ec2-54-159-137-147.compute-1.amazonaws.com [54.159.137.147]) by ismtpd-044 (SG) with ESMTP id 14e0c32ea62.7459.380b8a for ; Fri, 19 Jun 2015 14:22:20 +0000 (UTC) Date: Fri, 19 Jun 2015 14:22:19 +0000 From: ruby-core@marc-andre.ca 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: 44239 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 11286 X-Redmine-Issue-Author: 0x0dea X-Redmine-Issue-Assignee: matz X-Redmine-Sender: marcandre 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS59NrKg34ccUg9eGSeKYvd8WFUWqwZrWmziMx /6sljbGSumm7w4QaiNbAJBP9u2M4B1foh93Uekn/1jQTKiT3RJU7T2wBZVLUQHMyvAzrcpq99ITvJ7 cciomQKA1BaViIaIH3HTHIZDuSA9x4zLmJ89 X-ML-Name: ruby-core X-Mail-Count: 69682 Subject: [ruby-core:69682] [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 Marc-Andre Lafortune. Assignee set to Yukihiro Matsumoto I agree. Assigning to Matz ---------------------------------------- Feature #11286: [PATCH] Add case equality arity to Enumerable's sequence predicates. https://bugs.ruby-lang.org/issues/11286#change-53054 * Author: D.E. Akers * Status: Open * Priority: Normal * Assignee: Yukihiro Matsumoto ---------------------------------------- ## 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/