CODEWITHSUNDEEP
javascriptregex
Nitrodbz
Nitrodbz

Reputation: 1286

Regex Expression to match URLs

I have the following regex to detect URLS:

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

However, it doesn't detect urls such as www.google.ca and tlk.tc/ApSE. Is there an regex where I can detect these URLs? I am using javascript.

Upvotes: 1

Views: 628

Answers (2)

Jonathan
Jonathan

Reputation: 7604

Edit:

Try this one:

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

It makes the scheme optional, to support the two cases that you show in your example.

The IETF RFC-2396 for URLs gives the following regular expression for parsing URLs:

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

which maps the capture groups to the following components:

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

Note that the examples you give, www.google.ca and tlk.tc/ApSE are not "valid" URLs, but I believe they'd be matched by the regex anyway.

Upvotes: 3

Armin
Armin

Reputation: 15958

This expression does what you want. It is not a valid URL which this regexp is matching, but it fits your requirements:

/(\b(https?|ftp|file):\/\/|\bwww\.[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])|([\S]+\.([a-z]{2,})+?\/[\S]+)/gi

Upvotes: 0

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