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 1A2551AE022E for ; Wed, 7 Sep 2016 15:10:08 +0900 (JST) Received: from voscc.nagaokaut.ac.jp (voscc.nagaokaut.ac.jp [133.44.1.100]) by kankan.nagaokaut.ac.jp (Postfix) with ESMTP id 13027B5D9B0 for ; Wed, 7 Sep 2016 15:42:42 +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 894DD18CC817 for ; Wed, 7 Sep 2016 15:42:42 +0900 (JST) Received: from neon.ruby-lang.org (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id A48671204A9; Wed, 7 Sep 2016 15:42:42 +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 5CC24120499 for ; Wed, 7 Sep 2016 15:42:38 +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=QYjDMjpFNtOtQ4MnDS4Q0MmVi0U=; b=CpBQksTjkTQDotUHat FqJWUAxMIXBXX3TaK5Bh0cdKHrBeSAtO9SWKK9dFWvExSWFXrA0gsC1fL3kROuzH v9FhfBxUD22tUFv7d9ZFonTZvz2Dv0vq27fKJNmk6Ew0BuL9DVnwjZ2x0IYRDVY5 w//GSK5Cdf8ZdI3nTp8MA1H/A= Received: by filter0440p1mdw1.sendgrid.net with SMTP id filter0440p1mdw1.3613.57CFB6DB5 2016-09-07 06:42:35.290841198 +0000 UTC Received: from herokuapp.com (ec2-54-204-80-184.compute-1.amazonaws.com [54.204.80.184]) by ismtpd0003p1iad1.sendgrid.net (SG) with ESMTP id SoK5cadCTfmDaPpcGFM45A for ; Wed, 07 Sep 2016 06:42:35.073 +0000 (UTC) Date: Wed, 07 Sep 2016 06:42:35 +0000 From: sonots@gmail.com To: ruby-core@ruby-lang.org Message-ID: References: Mime-Version: 1.0 X-Redmine-MailingListIntegration-Message-Ids: 51970 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 12694 X-Redmine-Issue-Author: sonots X-Redmine-Sender: sonots 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS5PwXMJEm3eQ1TMV1tDWvClbvOIdXzwOY15lX vG/yHPxgKHGDAz0/A7uIp5sFHQoDoM+QFNOSfmXIjrFuGb/gMsm3dODYYU5pbxOLP7/D5yq1pKVDiq iLoh/bE9+sx44oL3T5edOtb3bZojuXu85ISn X-ML-Name: ruby-core X-Mail-Count: 77176 Subject: [ruby-core:77176] [Ruby trunk Feature#12694] Want a String method to remove heading substr 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" Issue #12694 has been updated by Naotoshi Seo. We discussed about this ticket on ruby development meeting. Python lstrip http://www.tutorialspoint.com/python/string_lstrip.htm takes character classes as an argument, so providing a substring as an argument will introduce confusion. We need to think of new naming. What about `String#lchomp` or `String#remove_prefix` or `String#head_chop` for example? ---------------------------------------- Feature #12694: Want a String method to remove heading substr https://bugs.ruby-lang.org/issues/12694#change-60390 * Author: Naotoshi Seo * Status: Open * Priority: Normal * Assignee: ---------------------------------------- I often write codes like: ```ruby str = 'abcdef' substr = 'abc' str[substr.size..-1] if str.index(substr) == 0 #=> 'def' # or str.sub(/^#{substr}/, '') #=> 'def' ``` I want a short hand which is something like: ```ruby str = 'abcdef' substr = 'abc' str.rstrip(substr) #=> 'def' ``` Having similar argument for `String#lstrip` would be nice for symmetry although we already have `String#chomp(substr)` -- https://bugs.ruby-lang.org/