1 files changed, 118 insertions, 0 deletions
diff --git a/lib/irb/loader.rb b/lib/irb/loader.rb
new file mode 100644
index 0000000000..83b10a55a0
--- /dev/null
+++ b/lib/irb/loader.rb
@@ -0,0 +1,118 @@
+#
+#   irb-loader.rb - 
+#   	$Release Version: 0.6$
+#   	$Revision$
+#   	$Date$
+#   	by Keiju ISHITSUKA(Nippon Rational Inc.)
+#
+# --
+#
+#   
+#
+
+module IRB
+  class LoadAbort < GlobalExit;end
+
+  module Loader
+    @RCS_ID='-$Id$-'
+
+    alias ruby_load load
+    alias ruby_require require
+
+    def irb_load(file_name)
+      return ruby_load(file_name) unless IRB.conf[:USE_LOADER]
+
+      load_sub(file_name)
+      return true
+    end
+
+    def irb_require(file_name)
+      return ruby_require(file_name) unless IRB.conf[:USE_LOADER]
+
+      rex = Regexp.new("#{Regexp.quote(file_name)}(\.o|\.rb)?")
+      return false if $".find{|f| f =~ rex}
+
+      case file_name
+      when /\.rb$/
+	begin
+	  load_sub(file_name)
+	  $".push file_name
+	  return true
+	rescue LoadError
+	end
+      when /\.(so|o|sl)$/
+	return ruby_require(file_name)
+      end
+      
+      begin
+	load_sub(f = file_name + ".rb")
+	$".push f
+	return true
+      rescue LoadError
+	return ruby_require(file_name)
+      end
+    end
+
+    def load_sub(fn)
+      if fn =~ /^#{Regexp.quote(File::Separator)}/
+	return false unless File.exist?(fn)
+	return irb_context.load_file(fn)
+      end
+      
+      for path in $:
+	if File.exist?(f = File.join(path, fn))
+	  return irb_context.load_file(f)
+	end
+      end
+      raise LoadError, "No such file to load -- #{file_name}"
+    end
+
+    alias load irb_load
+    alias require irb_require
+  end
+
+#   class Context
+#     def load_from(file_name)
+#       io = FileInputMethod.new(file_name)
+#       @irb.signal_status(:IN_LOAD) do
+# 	switch_io(io, file_name) do
+# 	  eval_input
+# 	end
+#       end
+#     end
+#   end
+
+  class Context
+    def load_file(path)
+      back_io = @io
+      back_path = @irb_path
+      back_name = @irb_name
+      back_scanner = @irb.scanner
+      begin
+ 	@io = FileInputMethod.new(path)
+ 	@irb_name = File.basename(path)
+	@irb_path = path
+	@irb.signal_status(:IN_LOAD) do
+	  if back_io.kind_of?(FileInputMethod)
+	    @irb.eval_input
+	  else
+	    begin
+	      @irb.eval_input
+	    rescue LoadAbort
+	      print "load abort!!\n"
+	    end
+	  end
+	end
+      ensure
+ 	@io = back_io
+ 	@irb_name = back_name
+ 	@irb_path = back_path
+	@irb.scanner = back_scanner
+      end
+    end
+  end
+
+  module ExtendCommand
+    include Loader
+  end
+end