1 files changed, 31 insertions, 0 deletions
diff --git a/tool/lrama/lib/lrama/lexer/grammar_file.rb b/tool/lrama/lib/lrama/lexer/grammar_file.rb
new file mode 100644
index 0000000000..3d3368625d
--- /dev/null
+++ b/tool/lrama/lib/lrama/lexer/grammar_file.rb
@@ -0,0 +1,31 @@
+module Lrama
+  class Lexer
+    class GrammarFile
+      class Text < String
+        def inspect
+          length <= 50 ? super : "#{self[0..47]}...".inspect
+        end
+      end
+
+      attr_reader :path, :text
+
+      def initialize(path, text)
+        @path = path
+        @text = Text.new(text).freeze
+      end
+
+      def inspect
+        "<#{self.class}: @path=#{path}, @text=#{text.inspect}>"
+      end
+
+      def ==(other)
+        self.class == other.class &&
+        self.path == other.path
+      end
+
+      def lines
+        @lines ||= text.split("\n")
+      end
+    end
+  end
+end