Backport racc-1.4.15 from upstream.

lib/racc/sourcetext.rb

@@ -0,0 +1,34 @@
+#
+# $Id: 3b2d89d9ada2f5fcb043837dcc5c9631856d5b70 $
+#
+# Copyright (c) 1999-2006 Minero Aoki
+#
+# This program is free software.
+# You can distribute/modify this program under the terms of
+# the GNU LGPL, Lesser General Public License version 2.1.
+# For details of LGPL, see the file "COPYING".
+#
+
+module Racc
+
+  class SourceText
+    def initialize(text, filename, lineno)
+      @text = text
+      @filename = filename
+      @lineno = lineno
+    end
+
+    attr_reader :text
+    attr_reader :filename
+    attr_reader :lineno
+
+    def to_s
+      "#<SourceText #{location()}>"
+    end
+
+    def location
+      "#{@filename}:#{@lineno}"
+    end
+  end
+
+end