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-rw-r--r--ruby_1_9_3/lib/irb/cmd/help.rb39
1 files changed, 39 insertions, 0 deletions
diff --git a/ruby_1_9_3/lib/irb/cmd/help.rb b/ruby_1_9_3/lib/irb/cmd/help.rb
new file mode 100644
index 0000000000..67cf89990b
--- /dev/null
+++ b/ruby_1_9_3/lib/irb/cmd/help.rb
@@ -0,0 +1,39 @@
+#
+# help.rb - helper using ri
+# $Release Version: 0.9.6$
+# $Revision$
+#
+# --
+#
+#
+#
+
+require 'rdoc/ri/driver'
+
+require "irb/cmd/nop.rb"
+
+module IRB
+ module ExtendCommand
+ class Help<Nop
+ begin
+ Ri = RDoc::RI::Driver.new
+ rescue SystemExit
+ else
+ def execute(*names)
+ if names.empty?
+ Ri.interactive
+ return
+ end
+ names.each do |name|
+ begin
+ Ri.display_name(name.to_s)
+ rescue RDoc::RI::Error
+ puts $!.message
+ end
+ end
+ nil
+ end
+ end
+ end
+ end
+end