I wonder if embrace the unix stdin/stdout is the solution. I'm toying about a new languagte where each function have IN/OUT/ERR channels. So, is possible to d

I wonder if embrace the unix stdin/stdout is the solution. I'm toying about a new languagte where each function have IN/OUT/ERR channels. So, is possible to do: result | err = open('file) This consume the ERR channel, however, if is not: result = open('file') it "trow". Inside the open, any raise is like a return for the ERR channel. This combined with RAII & scope like in D: http://dlang.org/exception-safe.html http://dlang.org/exception-safe.html