From: Philip Mak <pmak@...>
Date: 2003-06-17T22:35:53+09:00
Subject: URL class; is this worth submitting to RAA?

Before Ruby, I did a lot of web application programming in Perl using
Apache::ASP. Apache::ASP has a method, $Server->URL(), which
constructs a URL for me. I missed this capability in Ruby, so I made
my own class which does this.

Is this worth submitting to the RAA? It seems awfully simple. Although
pretty useful, at least for me.

# Constructs a URL from a query hash.
#
# Example:
#
# irb> URL.make('http://test.com/', {'login' => 'pmak', 'name' => 'Philip Mak', 'numbers' => [1,2,3]})
# "http://test.com/?name=Philip%20Mak;login=pmak;numbers=1;numbers=2;numbers=3"

require 'uri'

class URL
	def self.make(base, args = {})
		args = args.delete_if { |k, v| v.nil? }
		if args.empty?
			base
		else
			"#{base}?#{
				args.to_a.collect { |k, v|
					v.is_a?(Array) ?
						v.collect { |vn|
							"#{URI.escape(k.to_s)}=#{URI.escape(vn.to_s)}"
						}.join(';') :
						"#{URI.escape(k.to_s)}=#{URI.escape(v.to_s)}"
				}.join(';')
			}"
		end
	end
end