From: william.burnson@...
Date: 2015-12-09T05:31:24+00:00
Subject: [ruby-core:71976] [Ruby trunk - Bug #11793] [Open] puts 'ab'.gsub('a', '\\+') - unexpected output

Issue #11793 has been reported by William Burnson.

----------------------------------------
Bug #11793: puts 'ab'.gsub('a', '\\+') - unexpected output
https://bugs.ruby-lang.org/issues/11793

* Author: William Burnson
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-darwin15]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
Test case:
puts 'ab'.gsub('a', '\\+')

Expected output:
\+b

Actual output:
b

The way I understand gsub(pattern, replacement) when used with two string arguments is that it will perform a literal replacement, so it is quite unexpected that substituting with \+ removes the pattern entirely.

Doc: http://ruby-doc.org/core-2.2.3/String.html#method-i-gsub




-- 
https://bugs.ruby-lang.org/