remove checks for encodings availability

1 files changed, 24 insertions, 88 deletions

diff --git a/activesupport/lib/active_support/core_ext/string/access.rb b/activesupport/lib/active_support/core_ext/string/access.rb
index c0d5cdf2d5..9b5266c58c 100644
--- a/activesupport/lib/active_support/core_ext/string/access.rb
+++ b/activesupport/lib/active_support/core_ext/string/access.rb
@@ -1,99 +1,35 @@
 require "active_support/multibyte"
 
 class String
-  unless '1.9'.respond_to?(:force_encoding)
-    # Returns the character at the +position+ treating the string as an array (where 0 is the first character).
-    #
-    # Examples:
-    #   "hello".at(0)  # => "h"
-    #   "hello".at(4)  # => "o"
-    #   "hello".at(10) # => ERROR if < 1.9, nil in 1.9
-    def at(position)
-      mb_chars[position, 1].to_s
-    end
-
-    # Returns the remaining of the string from the +position+ treating the string as an array (where 0 is the first character).
-    #
-    # Examples:
-    #   "hello".from(0)  # => "hello"
-    #   "hello".from(2)  # => "llo"
-    #   "hello".from(10) # => "" if < 1.9, nil in 1.9
-    def from(position)
-      mb_chars[position..-1].to_s
-    end
-
-    # Returns the beginning of the string up to the +position+ treating the string as an array (where 0 is the first character).
-    #
-    # Examples:
-    #   "hello".to(0)  # => "h"
-    #   "hello".to(2)  # => "hel"
-    #   "hello".to(10) # => "hello"
-    def to(position)
-      mb_chars[0..position].to_s
-    end
-
-    # Returns the first character of the string or the first +limit+ characters.
-    #
-    # Examples:
-    #   "hello".first     # => "h"
-    #   "hello".first(2)  # => "he"
-    #   "hello".first(10) # => "hello"
-    def first(limit = 1)
-      if limit == 0
-        ''
-      elsif limit >= size
-        self
-      else
-        mb_chars[0...limit].to_s
-      end
-    end
-
-    # Returns the last character of the string or the last +limit+ characters.
-    #
-    # Examples:
-    #   "hello".last     # => "o"
-    #   "hello".last(2)  # => "lo"
-    #   "hello".last(10) # => "hello"
-    def last(limit = 1)
-      if limit == 0
-        ''
-      elsif limit >= size
-        self
-      else
-        mb_chars[(-limit)..-1].to_s
-      end
-    end
-  else
-    def at(position)
-      self[position]
-    end
+  def at(position)
+    self[position]
+  end
 
-    def from(position)
-      self[position..-1]
-    end
+  def from(position)
+    self[position..-1]
+  end
 
-    def to(position)
-      self[0..position]
-    end
+  def to(position)
+    self[0..position]
+  end
 
-    def first(limit = 1)
-      if limit == 0
-        ''
-      elsif limit >= size
-        self
-      else
-        to(limit - 1)
-      end
+  def first(limit = 1)
+    if limit == 0
+      ''
+    elsif limit >= size
+      self
+    else
+      to(limit - 1)
     end
+  end
 
-    def last(limit = 1)
-      if limit == 0
-        ''
-      elsif limit >= size
-        self
-      else
-        from(-limit)
-      end
+  def last(limit = 1)
+    if limit == 0
+      ''
+    elsif limit >= size
+      self
+    else
+      from(-limit)
     end
   end
 end