From: Bertram Scharpf <lists@...>
Date: 2007-06-29T19:33:53+09:00
Subject: Re: Feature Request: Special file '-' denoting stdin/stdout

Hi,

Am Freitag, 29. Jun 2007, 18:47:43 +0900 schrieb Ronald Fischer:
> I would like to propose a feature for Ruby which can be
> found in Perl, [...]
> 
> When a file is opened for reading, and the filename is
> "-", the file is assumed to be standard input.
> 
> When a file is opened for writing, and the filename is
> "-", the file is assumed to be standard output.
> 

Something like

  class <<File
    def open_dashed name, mode = nil
      if name = "-" then
        if mode =~ /[w+]/ then
          yield $>
        else
          yield $<
        end
      else
        File.open name, mode do |f| yield f end
      end
    end
  end

Untested.

Bertram


-- 
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de