1 files changed, 14 insertions, 7 deletions
diff --git a/ext/ripper/lib/ripper/filter.rb b/ext/ripper/lib/ripper/filter.rb
index 898501b23c..239f9f00e1 100644
--- a/ext/ripper/lib/ripper/filter.rb
+++ b/ext/ripper/lib/ripper/filter.rb
@@ -13,9 +13,13 @@ require 'ripper/lexer'
 class Ripper
 
   # This class handles only scanner events,
-  # and they are dispatched in the `right' order (same with input).
+  # which are dispatched in the 'right' order (same with input).
   class Filter
 
+    # Creates a new Ripper::Filter instance, passes parameters +src+,
+    # +filename+, and +lineno+ to Ripper::Lexer.new
+    #
+    # The lexer is for internal use only.
     def initialize(src, filename = '-', lineno = 1)
       @__lexer = Lexer.new(src, filename, lineno)
       @__line = nil
@@ -41,8 +45,9 @@ class Ripper
       @__col
     end
 
-    # Starts parsing.  _init_ is a data accumulator.
-    # It is passed to the next event handler (as of Enumerable#inject).
+    # Starts the parser.
+    # +init+ is a data accumulator and is passed to the next event handler (as
+    # of Enumerable#inject).
     def parse(init = nil)
       data = init
       @__lexer.lex.each do |pos, event, tok|
@@ -57,10 +62,12 @@ class Ripper
 
     private
 
-    # This method is called when some event handler have not defined.
-    # _event_ is :on_XXX, _token_ is scanned token, _data_ is a data
-    # accumulator.  The return value of this method is passed to the
-    # next event handler (as of Enumerable#inject).
+    # This method is called when some event handler is undefined.
+    # +event+ is :on_XXX, +token+ is the scanned token, and +data+ is a data
+    # accumulator.
+    #
+    # The return value of this method is passed to the next event handler (as
+    # of Enumerable#inject).
     def on_default(event, token, data)
       data
     end