lib/logicality/lexer/grammar.rb in logicality-1.0.4 vs lib/logicality/lexer/grammar.rb in logicality-1.0.5

@@ -1,13 +1,16 @@
+# frozen_string_literal: true
+
 #
 # Copyright (c) 2018-present, Blue Marble Payroll, LLC
 #
 # This source code is licensed under the MIT license found in the
 # LICENSE file in the root directory of this source tree.
 #
 
 module Logicality
   module Lexer
+    # Define the main regular expression matchers used by the lexer.
     module Grammar
       VALUE       = /([a-zA-Z0-9_$@?\.]+)/
       AND_OP      = /(&&)/
       OR_OP       = /(\|\|)/
       NOT_OP      = /(\!)/