Help: trick to get the domain name of an URL

rubyonrails-talk
1

Hello,

  I've been toying with my regex for a while and still has some problem with this.

I would like to get the web hostname of URLs : "get_domain(url) ":

such as:

  http://yahoo.com --> yahoo.com   http://www.yahoo.com/ --> www.yahoo.com   http://www.yahoo.com/cool/dir --> www.yahoo.com   http://sub1.sub2.google.com --> sub1.sub2.google.com   http://sub1.sub2.google.com/abc/def/aa?? --> sub1.sub2.google.com

I would appreciate any help and pointer. Thanks in advance!!

Thanks, -Chris

2

Hello,

  I've been toying with my regex for a while and still has some problem with this.

I would like to get the web hostname of URLs : "get_domain(url) ":

such as:

  http://yahoo.com --> yahoo.com   http://www.yahoo.com/ --> www.yahoo.com   http://www.yahoo.com/cool/dir --> www.yahoo.com   http://sub1.sub2.google.com --> sub1.sub2.google.com   http://sub1.sub2.google.com/abc/def/aa?? --> sub1.sub2.google.com

I would appreciate any help and pointer. Thanks in advance!!

3

Wow, that was easy.

Thanks for sharing your ruby-fu :slight_smile:

4

Or,    require 'uri'    url = "http://sub1.sub2.google.com/abc/def/aa?param1=foo&param2=bar"    URI.parse(url).host    => "sub1.sub2.google.com"

-Rob

Rob Biedenharn http://agileconsultingllc.com Rob@AgileConsultingLLC.com

5

Hello,

   Hope everyone's doing great.

   I have a simple problem and maybe someone could help -- my requirement is pretty simple:

  o I do a lot of scripting in Ruby, for plumbing our Rails web and Java legacy applications.   o I need to persist [string1,string2,string3] data, such as:      "apple", "november", "5"   o I do this quite often with different data sets   o Performance is not a major concern   o Simplicity is best   o I need to be able to retrieve them and update them easily

I have been using ActiveRecord (object.new, object.save, etc) to do this with a table with 3 columns, however I found it a bit too heavy-duty for this simple purpose because I have to use different databases since the data are in different locations..

I wonder if anyone could share some Ruby-Fu or a Ruby library tips on this.

Thanks in advance!

Chris

6

For such simple persistence Marshal may do:

data = %w(foo bar baz)

File.open('data.db', 'wb') do |fh|   fh.write(Marshal.dump(data)) end

File.open('data.db', 'rb') do |fh|   data = Marshal.load(fh.read) end

7

Or yaml if human readability is important (and easier to read on other platforms)

Fred