lib/kramdown/parser/base.rb in kramdown-1.14.0 vs lib/kramdown/parser/base.rb in kramdown-1.15.0

@@ -87,16 +87,14 @@
       end
 
       # Modify the string +source+ to be usable by the parser (unifies line ending characters to
       # +\n+ and makes sure +source+ ends with a new line character).
       def adapt_source(source)
-        if source.respond_to?(:encode)
-          if !source.valid_encoding?
-            raise "The source text contains invalid characters for the used encoding #{source.encoding}"
-          end
-          source = source.encode('UTF-8')
+        unless source.valid_encoding?
+          raise "The source text contains invalid characters for the used encoding #{source.encoding}"
         end
+        source = source.encode('UTF-8')
         source.gsub(/\r\n?/, "\n").chomp + "\n"
       end
 
       # This helper method adds the given +text+ either to the last element in the +tree+ if it is a
       # +type+ element or creates a new text element with the given +type+.
@@ -111,19 +109,15 @@
 
       # Extract the part of the StringScanner +strscan+ backed string specified by the +range+. This
       # method works correctly under Ruby 1.8 and Ruby 1.9.
       def extract_string(range, strscan)
         result = nil
-        if strscan.string.respond_to?(:encoding)
-          begin
-            enc = strscan.string.encoding
-            strscan.string.force_encoding('ASCII-8BIT')
-            result = strscan.string[range].force_encoding(enc)
-          ensure
-            strscan.string.force_encoding(enc)
-          end
-        else
-          result = strscan.string[range]
+        begin
+          enc = strscan.string.encoding
+          strscan.string.force_encoding('ASCII-8BIT')
+          result = strscan.string[range].force_encoding(enc)
+        ensure
+          strscan.string.force_encoding(enc)
         end
         result
       end
 
     end