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 9EDD919602B6 for ; Fri, 17 Jul 2015 02:01:41 +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 0F83FB5D8F9 for ; Fri, 17 Jul 2015 02:30:32 +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 4E43B97A82B for ; Fri, 17 Jul 2015 02:30:33 +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 qRhIn1C-xwRe for ; Fri, 17 Jul 2015 02:30:33 +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 07D6497A827 for ; Fri, 17 Jul 2015 02:30:33 +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 A5E86952439 for ; Fri, 17 Jul 2015 02:30:31 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 2FF46120460; Fri, 17 Jul 2015 02:30:29 +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 37033120432 for ; Fri, 17 Jul 2015 02:30:25 +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=zn+T1xsAYj1cK9OcRR1su3IeIdg=; b=lGLlfxGI6WqTBgLsTU YLGpcvJwOmIFnVdTO2xIfsg3qNQBK0aTzcOrjfPj9yNF8BU2DLYR3ErhhTM4q9WI MwntviNroeEMh7OhUfCAEb5DqhDG8mf4yjydGUXppAcQfuL3pAU6FT26fkB1xYeG +4GgoquSnCBE90lkDrpXdAgjA= Received: by filter0838p1mdw1.sendgrid.net with SMTP id filter0838p1mdw1.20915.55A7EA2710 2015-07-16 17:30:16.110914513 +0000 UTC Received: from herokuapp.com (ec2-54-234-111-116.compute-1.amazonaws.com [54.234.111.116]) by ismtpd-048 (SG) with ESMTP id 14e97eaacbc.1f40.10b0342 for ; Thu, 16 Jul 2015 17:30:16 +0000 (UTC) Date: Thu, 16 Jul 2015 17:30:16 +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: 44621 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 11286 X-Redmine-Issue-Author: 0x0dea X-Redmine-Issue-Assignee: matz 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS4pg78v+NgwlJanOOhw0yQVdW1oTePyycLs45 RcAd39LgtDvOT+4WsWQnP7k+ht3HuSRh4n1g6Q9iXlaYy+9w6TfHi7DU2Q8V48bEsepptVlwOLBEbg GjZeyrdUpb3W/NOGYuaP5RBj2zIMJfqHKTXc X-ML-Name: ruby-core X-Mail-Count: 70004 Subject: [ruby-core:70004] [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 D.E. Akers. matz, would you mind voicing your opinion of this proposal? ---------------------------------------- Feature #11286: [PATCH] Add case equality arity to Enumerable's sequence predicates. https://bugs.ruby-lang.org/issues/11286#change-53439 * 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) case_equality_sequence_predicates-check_argc_before_deref.patch (10 KB) case_equality_sequence_predicates-all_updates.patch (9.94 KB) -- https://bugs.ruby-lang.org/