Addressable

Description

Addressable is a replacement for the URI implementation that is part of Ruby's standard library. It more closely conforms to RFC 3986, RFC 3987, and RFC 6570 (level 4), providing support for IRIs and URI templates.

Reference

• {Addressable::URI}
• {Addressable::Template}

Example usage

require "addressable/uri"

uri = Addressable::URI.parse("http://example.com/path/to/resource/")
uri.scheme
#=> "http"
uri.host
#=> "example.com"
uri.path
#=> "/path/to/resource/"

uri = Addressable::URI.parse("http://www.詹姆斯.com/")
uri.normalize
#=> #<Addressable::URI:0xc9a4c8 URI:http://www.xn--8ws00zhy3a.com/>

URI Templates

For more details, see RFC 6570.

require "addressable/template"

template = Addressable::Template.new("http://example.com/{?query*}/")
template.expand({
  "query" => {
    'foo' => 'bar',
    'color' => 'red'
  }
})
#=> #<Addressable::URI:0xc9d95c URI:http://example.com/?foo=bar&color=red>

template = Addressable::Template.new("http://example.com/{?one,two,three}/")
template.partial_expand({"one" => "1", "three" => 3}).pattern
#=> "http://example.com/?one=1{&two}&three=3"

template = Addressable::Template.new(
  "http://{host}{/segments}/{?one,two,bogus}{#fragment}"
)
uri = Addressable::URI.parse(
  "http://example.com/a/b/c/?one=1&two=2#foo"
)
template.extract(uri)
#=>
# {
#   "host" => "example.com",
#   "segments" => ["a", "b", "c"],
#   "one" => "1",
#   "two" => "2",
#   "fragment" => "foo"
# }

Install

$ sudo gem install addressable

You may optionally turn on native IDN support by installing libidn and the idn gem:

$ sudo apt-get install idn # Debian/Ubuntu
$ sudo brew install libidn # OS X
$ sudo gem install idn

NOTE: Native IDN support appears to be broken in Ruby 1.9.x. The IDN gem hasn't been updated in years.