From: Jeremy Evans <code@...>
Date: 2010-09-16T05:20:25+09:00
Subject: [ruby-core:32405] Re: [Ruby 1.9-Bug#3833][Open] "foo+bar".gsub("+","\\+") == "foobar" ?

On 09/16 04:42, Grant Olson wrote:
> Bug #3833: "foo+bar".gsub("+","\\+") == "foobar" ?
> http://redmine.ruby-lang.org/issues/show/3833
> 
> Author: Grant Olson
> Status: Open, Priority: Normal
> ruby -v: tryruby.org (I'm running 1.8.7 locally, same problem)
> 
> The following gsub with a minus seems to work correctly:
> 
> ??????>> "foo-bar".gsub("-","\\-")                                            
> => "foo\\-bar"       
> 
> But with a plus, it seems to run incorrectly by stripping the plus:
> ???
> >> "foo+bar".gsub("+","\\+")                                            
> => "foobar"

I think \+ has a special meaning (the last matched group?). You aren't
using a regexp as the first argument, so you don't want to use \+.

You either want just "+" for a literal + or "\\\\+" for a literal \+.

Jeremy