first commit

nghttp2/third-party/mruby/mrbgems/mruby-io/mrblib/kernel.rb

@@ -0,0 +1,31 @@
+module Kernel
+  def `(cmd)
+    IO.popen(cmd) { |io| io.read }
+  end
+
+  def open(file, *rest, &block)
+    raise ArgumentError unless file.is_a?(String)
+
+    if file[0] == "|"
+      IO.popen(file[1..-1], *rest, &block)
+    else
+      File.open(file, *rest, &block)
+    end
+  end
+
+  def print(*args)
+    $stdout.print(*args)
+  end
+
+  def puts(*args)
+    $stdout.puts(*args)
+  end
+
+  def printf(*args)
+    $stdout.printf(*args)
+  end
+
+  def gets(*args)
+    $stdin.gets(*args)
+  end
+end