lib/unitwise/expression/decomposer.rb in unitwise-0.10.0 vs lib/unitwise/expression/decomposer.rb in unitwise-1.0.0

@@ -1,7 +1,10 @@
 module Unitwise
   module Expression
+    # The decomposer is used to turn string expressions into collections of
+    # terms. It is responsible for executing the parsing and transformation
+    # of a string, as well as caching the results.
     class Decomposer
 
       MODES = [:primary_code, :secondary_code, :names, :slugs, :symbol]
 
       PARSERS = MODES.reduce({}) do |hash, mode|
@@ -18,11 +21,11 @@
           fail ExpressionError, "Could not evaluate '#{@expression}'."
         end
       end
 
       def parse
-        @parse ||= PARSERS.reduce(nil) do |null,(mode, parser)|
+        @parse ||= PARSERS.reduce(nil) do |_, (mode, parser)|
           parsed = parser.parse(expression) rescue next
           @mode = mode
           break parsed
         end
       end
@@ -36,9 +39,9 @@
           transform.terms
         else
           Array(transform)
         end
       end
-
+      
     end
   end
-end
\ No newline at end of file
+end