Better variable names

lib/rumoji.rb

@@ -21,25 +21,25 @@ module Rumoji
     duplicate
   end
 
-  def encode_io(input, output=StringIO.new(""))
-    input.each_codepoint do |codepoint|
+  def encode_io(readable, writeable=StringIO.new(""))
+    readable.each_codepoint do |codepoint|
       emoji = codepoint.to_s(16).upcase
       emoji_or_character = EMOJI_NAME_TO_CODEPOINT.has_value?(emoji) ? ":#{EMOJI_NAME_TO_CODEPOINT.key(emoji)}:" : [codepoint].pack("U")
-      output.write emoji_or_character
+      writeable.write emoji_or_character
     end
-    output.rewind
-    output
+    writeable.rewind
+    writeable
   end
 
-  def decode_io(input, output=StringIO.new(""))
-    input.each do |word|
+  def decode_io(readable, writeable=StringIO.new(""))
+    readable.each do |word|
       EMOJI_NAME_TO_CODEPOINT.each_pair do |key,value|
         word.gsub!(":#{key}:", [value.to_i(16)].pack("U"))
       end
-      output.write(word)
+      writeable.write(word)
     end
-    output.rewind
-    output
+    writeable.rewind
+    writeable
   end
 
   EMOJI_NAME_TO_CODEPOINT = {