Get value from string

Ruby
1

I have a string that content a link of a youtube page .
Like:

i want get the value of v:
PupR5V9aE2s

How i can do?
Thanks

2

Alle Sunday 24 February 2008, Luca R. ha scritto:

I have a string that content a link of a youtube page .
Like:
The Great Trafalgar Square Freeze - YouTube

i want get the value of v:
PupR5V9aE2s

How i can do?
Thanks

If you know that the part of the string you want is delimited by v= and
&, you
can use this:

str.match(/v=([^&]*)/)[1]

Stefano

3

Thanks stefano for the responce

There are 2 possible links:

str.match(/v=([^&]*)/)[1]
Is your command valid also for the second link?
Thanks

Stefano C. wrote:

Alle Sunday 24 February 2008, Luca R. ha scritto:

I have a string that content a link of a youtube page .
Like:
The Great Trafalgar Square Freeze - YouTube

i want get the value of v:
PupR5V9aE2s

How i can do?
Thanks

If you know that the part of the string you want is delimited by v= and
&, you
can use this:

str.match(/v=([^&]*)/)[1]

Stefano

4

On 24/02/2008, Luca R. [email protected] wrote:

I have a string that content a link of a youtube page .
Like:
The Great Trafalgar Square Freeze - YouTube

irb(main):001:0> require ‘uri’
=> true
irb(main):002:0> res = URI.split(’
The Great Trafalgar Square Freeze - YouTube’)
=> [“http”, nil, “it.youtube.com”, nil, nil, “/watch”, nil,
“v=PupR5V9aE2s&test=1”, nil]

gives you an array of:

  • Scheme
  • Userinfo
  • Host
  • Port
  • Registry
  • Path
  • Opaque
  • Query
  • Fragment

-Thomas

5

Alle Sunday 24 February 2008, Luca R. ha scritto:

Thanks

If you know that the part of the string you want is delimited by v= and
&, you
can use this:

str.match(/v=([^&]*)/)[1]

Stefano

Yes. The regexp I used looks for the string v= followed by any number of
characters which are not ‘&’. Those characters are put into the first
group of
the returned MatchData. Since your second link doesn’t contain the ‘&’,
the
match will go on until the end, which should give you what you want.

Stefano