1 files changed, 97 insertions, 0 deletions
diff --git a/ruby/lib/irb/xmp.rb b/ruby/lib/irb/xmp.rb
new file mode 100644
index 0000000..f46484f
--- /dev/null
+++ b/ruby/lib/irb/xmp.rb
@@ -0,0 +1,97 @@
+#
+#   xmp.rb - irb version of gotoken xmp
+#   	$Release Version: 0.9$
+#   	$Revision: 21633 $
+#   	by Keiju ISHITSUKA(Nippon Rational Inc.)
+#
+# --
+#
+#   
+#
+
+require "irb"
+require "irb/frame"
+
+class XMP
+  @RCS_ID='-$Id: xmp.rb 21633 2009-01-17 12:19:53Z yugui $-'
+
+  def initialize(bind = nil)
+    IRB.init_config(nil)
+    #IRB.parse_opts
+    #IRB.load_modules
+
+    IRB.conf[:PROMPT_MODE] = :XMP
+
+    bind = IRB::Frame.top(1) unless bind
+    ws = IRB::WorkSpace.new(bind)
+    @io = StringInputMethod.new
+    @irb = IRB::Irb.new(ws, @io)
+    @irb.context.ignore_sigint = false
+
+#    IRB.conf[:IRB_RC].call(@irb.context) if IRB.conf[:IRB_RC]
+    IRB.conf[:MAIN_CONTEXT] = @irb.context
+  end
+
+  def puts(exps)
+    @io.puts exps
+
+    if @irb.context.ignore_sigint
+      begin
+	trap_proc_b = trap("SIGINT"){@irb.signal_handle}
+	catch(:IRB_EXIT) do
+	  @irb.eval_input
+	end
+      ensure
+	trap("SIGINT", trap_proc_b)
+      end
+    else
+      catch(:IRB_EXIT) do
+	@irb.eval_input
+      end
+    end
+  end
+
+  class StringInputMethod < IRB::InputMethod
+    def initialize
+      super
+      @exps = []
+    end
+
+    def eof?
+      @exps.empty?
+    end
+
+    def gets
+      while l = @exps.shift
+	next if /^\s+$/ =~ l
+	l.concat "\n"
+	print @prompt, l
+	break
+      end
+      l
+    end
+
+    def puts(exps)
+      if @encoding and exps.encoding != @encoding
+	enc = Encoding.compatible?(@exps.join("\n"), exps)
+	if enc.nil?
+	  raise Encoding::CompatibilityError, "Encoding in which the passed exression is encoded is not compatible to the preceding's one"
+	else
+	  @encoding = enc
+	end
+      else
+	@encoding = exps.encoding
+      end
+      @exps.concat exps.split(/\n/)
+    end
+
+    attr_reader :encoding
+  end
+end
+
+def xmp(exps, bind = nil)
+  bind = IRB::Frame.top(1) unless bind
+  xmp = XMP.new(bind)
+  xmp.puts exps
+  xmp
+end