method

open

v1_8_6_287 - Show latest stable - 1 note - Class: Kernel

open(name, *rest, &block) private

makes possible to open various resources including URIs. If the first argument respond to `open’ method, the method is called with the rest arguments.

If the first argument is a string which begins with xxx://, it is parsed by URI.parse. If the parsed object respond to `open’ method, the method is called with the rest arguments.

Otherwise original open is called.

Since open-uri.rb provides URI::HTTP#open, URI::HTTPS#open and URI::FTP#open, Kernel[#.]open can accepts such URIs and strings which begins with http://, https:// and ftp://. In these case, the opened file object is extended by OpenURI::Meta.

Show source

# File lib/open-uri.rb, line 24
  def open(name, *rest, &block) # :doc:
    if name.respond_to?(:open)
      name.open(*rest, &block)
    elsif name.respond_to?(:to_str) &&
          %r{\A[A-Za-z][A-Za-z0-9+\-\.]*://} =~ name &&
          (uri = URI.parse(name)).respond_to?(:open)
      uri.open(*rest, &block)
    else
      open_uri_original_open(name, *rest, &block)
    end
  end

April 23, 2009

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open

Related methods

See Also: IO Class Methods