Parse Text With Multiple Links Using Regex In Javascript

Hi i m having a text having multiple links wrapped inside text... i want a regex(i m using javascript) which can parse the text and return a array of the links... for example for t

Solution 1:

How about:

var text = 'http://www.youtube.com/watch?v=-LiPMxFBLZY testing http://www.youtube.com/watch?v=Q3-l22b_Qg8&feature=related http://yahoo.com';

var ytre = /(\b(https?|ftp|file):\/\/[\-A-Z0-9+&@#\/%?=~_|!:,.;]*[\-A-Z0-9+&@#\/%=~_|])/ig;

var resultArray = text.match(ytre);

See it

Solution 2:

To parse URLs, using regexs, look at the RFC that defines URLs.

So to find regular expressions, use a variant that makes the protocol and authority non-optional, like /\b(([^:\/?#]+):)(\/\/([^\/?#]*))([^?#]*)(\?([^#]*))?(#(.*))?/gi.

http://www.ietf.org/rfc/rfc3986.txt says

Appendix B. Parsing a URI Reference with a Regular Expression

As the "first-match-wins" algorithm is identical to the "greedy" disambiguation method used by POSIX regular expressions, it is natural and commonplace to use a regular expression for parsing the potential five components of a URI reference.

The following line is the regular expression for breaking-down a well-formed URI reference into its components.

  ^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?123456789

The numbers in the second line above are only to assist readability; they indicate the reference points for each subexpression (i.e., each paired parenthesis). We refer to the value matched for subexpression as $. For example, matching the above expression to

  http://www.ics.uci.edu/pub/ietf/uri/#Related

results in the following subexpression matches:

$1 = http:$2 = http
  $3 = //www.ics.uci.edu
  $4 = www.ics.uci.edu
  $5 = /pub/ietf/uri/$6 = <undefined>
  $7 = <undefined>
  $8 = #Related$9 = Related

where indicates that the component is not present, as is the case for the query component in the above example. Therefore, we can determine the value of the five components as

scheme    = $2authority = $4path      = $5query     = $7fragment  = $9