From: "matz (Yukihiro Matsumoto)" Date: 2012-03-30T16:23:07+09:00 Subject: [ruby-core:43929] [ruby-trunk - Feature #6150][Rejected] add Enumerable#grep_v Issue #6150 has been updated by matz (Yukihiro Matsumoto). Status changed from Assigned to Rejected We are not going to add grep_v. There's possibility of adding :invert option to grep. Matz. ---------------------------------------- Feature #6150: add Enumerable#grep_v https://bugs.ruby-lang.org/issues/6150#change-25453 Author: sunaku (Suraj Kurapati) Status: Rejected Priority: Normal Assignee: matz (Yukihiro Matsumoto) Category: Target version: 2.0.0 Please add a grep_v() method to Enumerable that behaves like the opposite of grep(). For example, if Enumerable#grep() was implemented like this: module Enumerable def grep pattern select {|x| pattern =~ x } end end then Enumerable#grep_v() would be implemented like this (select becomes reject): module Enumerable def grep_v pattern reject {|x| pattern =~ x } end end The method name "grep_v" comes from the "-v" option passed to grep(1). Thanks for your consideration. -- http://bugs.ruby-lang.org/