argf.rb in backports-3.1.0

- old
+ new
@@ -1,44 +1,3 @@
-class << ARGF
-  # No official documentation...
+require 'backports/tools'
 
-  if RUBY_VERSION < '1.8.7' # Can't test without block, as this hangs
-    Backports.make_block_optional self, :each, :each_line, :each_byte, :force => true
-  end
-
-  def each_char
-    return to_enum(:each_char) unless block_given?
-    if $KCODE == "UTF-8"
-      lookup = 7.downto(4)
-      while c = read(1) do
-        n = c[0]
-        leftmost_zero_bit = lookup.find{|i| n[i].zero? }
-        case leftmost_zero_bit
-        when 7 # ASCII
-          yield c
-        when 6 # UTF 8 complementary characters
-          next # Encoding error, ignore
-        else
-          more = read(6-leftmost_zero_bit)
-          break unless more
-          yield c+more
-        end
-      end
-    else
-      while s = read(1)
-        yield s
-      end
-    end
-
-    self
-  end unless method_defined? :each_char
-
-  # No official documentation...
-  Backports.alias_method self, :getbyte, :getc
-
-  # No official documentation...
-  Backports.alias_method self, :readbyte, :readchar
-
-  Backports.alias_method self, :bytes, :each_byte
-  Backports.alias_method self, :chars, :each_char
-  Backports.alias_method self, :lines, :each_line
-end
+Backports.require_relative_dir