* lib/irb/extend-command.rb: add irb_help command. [ruby-talk:91610]

* lib/irb/cmd/help.rb (IRB::ExtendCommand::Help): show RDoc.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5626 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Fri Feb  6 09:15:11 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/irb/extend-command.rb: add irb_help command.  [ruby-talk:91610]
+
+	* lib/irb/cmd/help.rb (IRB::ExtendCommand::Help): show RDoc.
+
 Fri Feb  6 00:48:37 2004  Tanaka Akira  <akr@m17n.org>
 
 	* lib/prettyprint.rb (PrettyPrint#first?): obsoleted.

lib/irb/cmd/help.rb

@@ -0,0 +1,23 @@
+require 'rdoc/ri/ri_driver'
+
+module IRB
+  module ExtendCommand
+    module Help
+      begin
+        @ri = RiDriver.new
+      rescue SystemExit
+      else
+        def self.execute(context, *names)
+          names.each do |name|
+            begin
+              @ri.get_info_for(name.to_s)
+            rescue RiError
+              puts $!.message
+            end
+          end
+          nil
+        end
+      end
+    end
+  end
+end

lib/irb/extend-command.rb

@@ -100,6 +100,9 @@ module IRB
 	[:fg, NO_OVERRIDE]],
       [:irb_kill, :Kill, "irb/cmd/subirb", 
 	[:kill, OVERRIDE_PRIVATE_ONLY]],
+
+      [:irb_help, :Help, "irb/cmd/help",
+        [:help, NO_OVERRIDE]],
     ]
 
     def EXCB.install_extend_commands