1 files changed, 69 insertions, 0 deletions
diff --git a/lib/irb/output-method.rb b/lib/irb/output-method.rb
new file mode 100644
index 0000000..94518c6
--- /dev/null
+++ b/lib/irb/output-method.rb
@@ -0,0 +1,69 @@
+#
+#   output-method.rb - output methods used by irb
+#   	$Release Version: 0.9.6$
+#   	$Revision: 26986 $
+#   	by Keiju ISHITSUKA(keiju@ruby-lang.org)
+#
+# --
+#
+#
+#
+
+require "e2mmap"
+
+module IRB
+  # OutputMethod
+  #   StdioOutputMethod
+
+  class OutputMethod
+    @RCS_ID='-$Id: output-method.rb 26986 2010-03-20 03:30:59Z nobu $-'
+
+    def print(*opts)
+      IRB.fail NotImplementError, "print"
+    end
+
+    def printn(*opts)
+      print opts.join(" "), "\n"
+    end
+
+    # extend printf
+    def printf(format, *opts)
+      if /(%*)%I/ =~ format
+	format, opts = parse_printf_format(format, opts)
+      end
+      print sprintf(format, *opts)
+    end
+
+    # %
+    # <flag>  [#0- +]
+    # <minimum field width> (\*|\*[1-9][0-9]*\$|[1-9][0-9]*)
+    # <precision>.(\*|\*[1-9][0-9]*\$|[1-9][0-9]*|)?
+    # #<length modifier>(hh|h|l|ll|L|q|j|z|t)
+    # <conversion specifier>[diouxXeEfgGcsb%]
+    def parse_printf_format(format, opts)
+      return format, opts if $1.size % 2 == 1
+    end
+
+    def puts(*objs)
+      for obj in objs
+	print(*obj)
+	print "\n"
+      end
+    end
+
+    def pp(*objs)
+      puts(*objs.collect{|obj| obj.inspect})
+    end
+
+    def ppx(prefix, *objs)
+      puts(*objs.collect{|obj| prefix+obj.inspect})
+    end
+
+  end
+
+  class StdioOutputMethod<OutputMethod
+    def print(*opts)
+      STDOUT.print(*opts)
+    end
+  end
+end