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out() in Ruby

By: Jeeva in Ruby Tutorials on 2009年03月03日 [フレーム]

out(options = "text/html") {|| ...}

Print an HTTP header and body to $DEFAULT_OUTPUT ($>)

The header is provided by options, as for header(). The body of the document is that returned by the passed- in block. This block takes no arguments. It is required.

 cgi = CGI.new
 cgi.out{ "string" }
 # Content-Type: text/html
 # Content-Length: 6
 #
 # string
 cgi.out("text/plain") { "string" }
 # Content-Type: text/plain
 # Content-Length: 6
 #
 # string
 cgi.out("nph" => true,
 "status" => "OK", # == "200 OK"
 "server" => ENV['SERVER_SOFTWARE'],
 "connection" => "close",
 "type" => "text/html",
 "charset" => "iso-2022-jp",
 # Content-Type: text/html; charset=iso-2022-jp
 "language" => "ja",
 "expires" => Time.now + (3600 * 24 * 30),
 "cookie" => [cookie1, cookie2],
 "my_header1" => "my_value",
 "my_header2" => "my_value") { "string" }

Content-Length is automatically calculated from the size of the String returned by the content block.

If ENV['REQUEST_METHOD"] == "HEAD", then only the header is outputted (the content block is still required, but it is ignored).

If the charset is "iso-2022-jp" or "euc-jp" or "shift_jis" then the content is converted to this charset, and the language is set to "ja".

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