added tag v1_9_0_4

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_9_0_4@18845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 70 insertions, 0 deletions

diff --git a/trunk/ext/ripper/lib/ripper/core.rb b/trunk/ext/ripper/lib/ripper/core.rb
new file mode 100644
index 0000000000..35aa54d090
--- /dev/null
+++ b/trunk/ext/ripper/lib/ripper/core.rb
@@ -0,0 +1,70 @@
+#
+# $Id$
+#
+# Copyright (c) 2003-2005 Minero Aoki
+#
+# This program is free software.
+# You can distribute and/or modify this program under the Ruby License.
+# For details of Ruby License, see ruby/COPYING.
+#
+
+require 'ripper.so'
+
+class Ripper
+
+  # Parses Ruby program read from _src_.
+  # _src_ must be a String or a IO or a object which has #gets method.
+  def Ripper.parse(src, filename = '(ripper)', lineno = 1)
+    new(src, filename, lineno).parse
+  end
+
+  # This array contains name of parser events.
+  PARSER_EVENTS = PARSER_EVENT_TABLE.keys
+
+  # This array contains name of scanner events.
+  SCANNER_EVENTS = SCANNER_EVENT_TABLE.keys
+
+  # This array contains name of all ripper events.
+  EVENTS = PARSER_EVENTS + SCANNER_EVENTS
+
+  private
+
+  #
+  # Parser Events
+  #
+
+  PARSER_EVENT_TABLE.each do |id, arity|
+    module_eval(<<-End, __FILE__, __LINE__ + 1)
+      def on_#{id}(#{ ('a'..'z').to_a[0, arity].join(', ') })
+        #{arity == 0 ? 'nil' : 'a'}
+      end
+    End
+  end
+
+  # This method is called when weak warning is produced by the parser.
+  # _fmt_ and _args_ is printf style.
+  def warn(fmt, *args)
+  end
+
+  # This method is called when strong warning is produced by the parser.
+  # _fmt_ and _args_ is printf style.
+  def warning(fmt, *args)
+  end
+
+  # This method is called when the parser found syntax error.
+  def compile_error(msg)
+  end
+
+  #
+  # Scanner Events
+  #
+
+  SCANNER_EVENTS.each do |id|
+    module_eval(<<-End, __FILE__, __LINE__ + 1)
+      def on_#{id}(token)
+        token
+      end
+    End
+  end
+
+end