String#scrub for Ruby 2.0.0 and 1.9.3
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String#scrub for Ruby 2.0.0 and 1.9.3

What does the scrub method do?

If the given string contains an invalid byte sequence then that invalid byte sequence is replaced with the unicode replacement character (�) and a new string is returned.

You may also set a replacement character of your choice by passing that character to the method.


See testcase


Add this line to your application's Gemfile:

gem 'string-scrub'

And then execute:

$ bundle

Or install it yourself as:

$ gem install string-scrub


  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request