add crosslang.rb

crosslang.cc

@@ -78,7 +78,7 @@ static void usage(const char* prog)
 		"  3. Writes the re-serialized objects into <out-file> (default: stdout)\n"
 		"\n"
 		, prog);
-	exit(0);
+	exit(1);
 }
 
 int main(int argc, char* argv[])

crosslang.rb

@@ -0,0 +1,81 @@
+begin
+require 'rubygems'
+rescue LoadError
+end
+require 'msgpack'
+
+def run(inio, outio)
+	pac = MessagePack::Unpacker.new(inio)
+
+	begin
+		pac.each {|obj|
+			outio.write MessagePack.pack(obj)
+			outio.flush
+		}
+	rescue EOFError
+		return 0
+	rescue
+		$stderr.puts $!
+		return 1
+	end
+
+	return 0
+end
+
+def usage
+	puts <<EOF
+Usage: #{$0} [in-file] [out-file]
+
+This tool is for testing of MessagePack implementation.
+This does following behavior:
+
+  1. Reads objects serialized by MessagePack from <in-file> (default: stdin)
+  2. Re-serializes the objects using Ruby implementation of MessagePack (Note that Ruby implementation is considered valid)
+  3. Writes the re-serialized objects into <out-file> (default: stdout)
+
+EOF
+	exit 1
+end
+
+inio = $stdin
+outio = $stdout
+
+if ARGV.length > 2
+	usage
+end
+
+ARGV.each {|str|
+	if str.size > 1 && str[0] == ?-
+		usage
+	end
+}
+
+if fname = ARGV[0]
+	unless fname == "-"
+		begin
+			inio = File.open(fname)
+		rescue
+			puts "can't open output file: #{$!}"
+			exit 1
+		end
+	end
+end
+
+if fname = ARGV[1]
+	unless fname == "-"
+		begin
+			outio = File.open(fname, "w")
+		rescue
+			puts "can't open output file: #{$!}"
+			exit 1
+		end
+	end
+end
+
+code = run(inio, outio)
+
+inio.close
+outio.close
+
+exit code
+