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Parsing URLs
CodeExpectedActual
require 'uri'
URI.parse('https://www.example.com').scheme
 "https" "https" 
URI.parse('http://www.example.com/').host
 "www.example.com" "www.example.com" 
URI.parse('http://www.example.com:6060/').port
 6060 6060 
URI.parse('http://example.com/a/file.html').path
 "/a/file.html" "/a/file.html" 
URI.split('http://example.com/a/file.html')
 ["http", nil, "example.com", nil, nil, "/a/file.html", nil, nil, nil] ["http", nil, "example.com", nil, nil, "/a/file.html", nil, nil, nil] 
URI::HTTP.component
 [:scheme, :userinfo, :host, :port, :path, :query, :fragment] [:scheme, :userinfo, :host, :port, :path, :query, :fragment] 
URI::MailTo.component
 [:scheme, :to, :headers] [:scheme, :to, :headers] 
URI::HTTP.build(:host => 'example.com', :path => '/a/file.html',
                :fragment => 'section_3').to_s
 "http://example.com/a/file.html#section_3" "http://example.com/a/file.html#section_3" 
class URI::Generic
  def dump
    component.each do |m|
      puts "#{m}: #{send(m).inspect}"
    end
  end
end
url = 'http://leonardr:pw@www.subdomain.example.com:6060' +
	'/cgi-bin/mycgi.cgi?key1=val1#anchor'
URI.parse(url).dump
 
scheme: "http"
userinfo: "leonardr:pw"
host: "www.subdomain.example.com"
port: 6060
path: "/cgi-bin/mycgi.cgi"
query: "key1=val1"
fragment: "anchor"
 
scheme: "http"
userinfo: "leonardr:pw"
host: "www.subdomain.example.com"
port: 6060
path: "/cgi-bin/mycgi.cgi"
query: "key1=val1"
fragment: "anchor"
 
URI::parse('ftp://leonardr:password@ftp.example.com/a/file.txt').dump
 
scheme: "ftp"
userinfo: "leonardr:password"
host: "ftp.example.com"
port: 21
path: "/a/file.txt"
typecode: nil
 
scheme: "ftp"
userinfo: "leonardr:password"
host: "ftp.example.com"
port: 21
path: "/a/file.txt"
typecode: nil
 
uri = URI::parse('mailto:leonardr@example.com?Subject=Hello&body=Hi!')
uri.dump
 
scheme: "mailto"
to: "leonardr@example.com"
headers: [["Subject", "Hello"], ["body", "Hi!"]]
 
scheme: "mailto"
to: "leonardr@example.com"
headers: [["Subject", "Hello"], ["body", "Hi!"]]
 
puts uri.to_mailtext
 
To: leonardr@example.com
Subject: Hello

Hi!
 
To: leonardr@example.com
Subject: Hello

Hi!
 
URI::parse("ldap://ldap.example.com").dump
 
scheme: "ldap"
host: "ldap.example.com"
port: 389
dn: nil
attributes: nil
scope: nil
filter: nil
extensions: nil
 
scheme: "ldap"
host: "ldap.example.com"
port: 389
dn: nil
attributes: nil
scope: nil
filter: nil
extensions: nil
 
URI::parse('ldap://ldap.example.com/o=Alice%20Exeter,c=US?extension').dump
 
scheme: "ldap"
host: "ldap.example.com"
port: 389
dn: "o=Alice%20Exeter,c=US"
attributes: "extension"
scope: nil
filter: nil
extensions: nil
 
scheme: "ldap"
host: "ldap.example.com"
port: 389
dn: "o=Alice%20Exeter,c=US"
attributes: "extension"
scope: nil
filter: nil
extensions: nil
 
uri = URI.parse('tag:example.com,2006,my-tag')
uri.scheme
 "tag" "tag" 
uri.opaque
 "example.com,2006,my-tag" "example.com,2006,my-tag" 
uri = URI.parse('http://www.example.com/#anchor')
uri.port = 8080
uri.to_s
 "http://www.example.com:8080/#anchor" "http://www.example.com:8080/#anchor"