Add String#remove(pattern) as a short-hand for the common pattern of …

…String#gsub(pattern, '')

activesupport/CHANGELOG.md

@@ -1,3 +1,7 @@
*   Add String#remove(pattern) as a short-hand for the common pattern of String#gsub(pattern, '')

    *DHH*

*   Adds a new deprecation behaviour that raises an exception. Throwing this
    line into +config/environments/development.rb+

activesupport/lib/active_support/core_ext/string/filters.rb

@@ -20,6 +20,16 @@ def squish!
    self
  end

  # Returns a new string with all occurances of the pattern removed. Short-hand for String#gsub(pattern, '').
  def remove(pattern)
    gsub pattern, ''    
  end

  # Alters the string by removing all occurances of the pattern. Short-hand for String#gsub!(pattern, '').
  def remove!(pattern)
    gsub! pattern, ''
  end

  # Truncates a given +text+ after a given <tt>length</tt> if +text+ is longer than <tt>length</tt>:
  #
  #   'Once upon a time in a world far far away'.truncate(27)

activesupport/test/core_ext/string_ext_test.rb

@@ -277,6 +277,11 @@ def test_truncate_multibyte
  def test_truncate_should_not_be_html_safe
    assert !"Hello World!".truncate(12).html_safe?
  end
  
  def test_remove
    assert_equal "Summer", "Fast Summer".remove(/Fast /)
    assert_equal "Summer", "Fast Summer".remove!(/Fast /)
  end

  def test_constantize
    run_constantize_tests_on do |string|