how to find if the input text is a url using regex

Question

I want to check if the input received is url using REGEX. How can i do it ? Is there any standard REGEX available that works for checking url?

my requirement is to check if the input text is a url or not, but not if the text contains a url.

http://stackoverflow.com/questions/161738/what-is-the-best-regular-expression-to-check-if-a-string-is-a-valid-url — plsgogame, Dec 23 '13 at 11:15

score 5 · Accepted Answer · answered Dec 23 '13 at 11:20

5

you can check without regex in android

android.util.Patterns.WEB_URL.matcher(linkUrl).matches();

answered Dec 23 '13 at 11:20

Nambi

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hey sorry for the delay in accepting the answer. thanks your solution works. – sundeep Jan 07 '14 at 10:41
it's ok all the best :) – Nambi Jan 07 '14 at 11:37

score 4 · Answer 2 · edited May 23 '17 at 10:32

I would strongly recommend not using a Regex in this situation as there are a lot of different cases that can constitute a valid URL (see the top voted answer to this question for an example of an RFC valid regex). If working on Android I would recommend using the Uri class;

String urlToValidate = "http://google.co.uk/search";
Uri uri = Uri.parse(urlToValidate);

You can then look at the different parts of the URL to ensure that you are willing to accept the URL input. For example;

uri.getScheme(); // Returns "http", if you only want an HTTP url
uri.getHost(); // Returns "google.co.uk", if you only want a specific domain
uri.getPath(); // Returns "/search"

how to find if the input text is a url using regex

2 Answers2