bin/pdf2ruby in origami-2.0.0 vs bin/pdf2ruby in origami-2.0.1

@@ -183,11 +183,11 @@
             rubyname = nameToRuby(key)
             subintname = "#{internalname}[#{rubyname}]"
 
             if val.is_a?(Origami::Reference) and @var_hash[val] and @var_hash[val][0,3] == "obj"
                 oldname = @var_hash[val]
-                newname = (key.value.to_s.downcase.gsub(/[^[[:alnum:]]]/,'_') + "_" + @var_hash[val][4..-1]).gsub('.','_')
+                newname = (key.value.to_s.downcase.gsub(/[^[[:alnum:]]]/,'_') + "_" + @var_hash[val][4..-1]).tr('.', '_')
 
                 if not @obj_route.include?(oldname)
                     @var_hash[val] = newname
                     @code_hash[newname] = @code_hash[oldname]
                     @code_hash.delete(oldname)
@@ -215,11 +215,11 @@
         rubyname = nameToRuby(key)
         subintname = "#{internalname}[#{rubyname}]"
 
         if val.is_a?(Origami::Reference) and @var_hash[val] and @var_hash[val][0,3] == "obj"
             oldname = @var_hash[val]
-            newname = (key.value.to_s.downcase + "_" + @var_hash[val][4..-1]).gsub('.','_')
+            newname = (key.value.to_s.downcase + "_" + @var_hash[val][4..-1]).tr('.', '_')
 
             if not @obj_route.include?(oldname)
                 @var_hash[val] = newname
                 @code_hash[newname] = @code_hash[oldname]
                 @code_hash.delete(oldname)
@@ -235,10 +235,10 @@
 
     code
 end
 
 def streamToRuby(stm, internalname)
-    dict = stm.dictionary.dup.delete_if{|k,v| k == :Length}
+    dict = stm.dictionary.dup.delete_if {|k, _| k == :Length}
 
     code = "Stream.new("
 
     if @options[:xstreams]
         stmdir = File.join(TARGET_DIR, STREAM_DIR)