module CGI::HtmlExtension

def form(method = "post", action = script_name, enctype = "application/x-www-form-urlencoded")

#
string

form("METHOD" => "post", "ENCTYPE" => "enctype") { "string" }

#
string

form("get", "url") { "string" }

#
string

form("get") { "string" }

#
string

form{ "string" }

See also #multipart_form() for forms that include file uploads.

Alternatively, the attributes can be specified as a hash.

defaults to "application/x-www-form-urlencoded".
+action+ defaults to the current CGI script name. +enctype+
+method+ should be either "get" or "post", and defaults to the latter.

Generate a Form element as a string. 
def form(method = "post", action = script_name, enctype = "application/x-www-form-urlencoded")
  attributes = if method.kind_of?(String)
                 { "METHOD" => method, "ACTION" => action,
                   "ENCTYPE" => enctype }
               else
                 unless method.has_key?("METHOD")
                   method["METHOD"] = "post"
                 end
                 unless method.has_key?("ENCTYPE")
                   method["ENCTYPE"] = enctype
                 end
                 method
               end
  if block_given?
    body = yield
  else
    body = ""
  end
  if @output_hidden
    body << @output_hidden.collect{|k,v|
      "<INPUT TYPE=\"HIDDEN\" NAME=\"#{k}\" VALUE=\"#{v}\">"
    }.join
  end
  super(attributes){body}
end