How can i validate an nsstring is valid url?

Asked May 20 '15 at 06:40

Active May 20 '15 at 06:56

Viewed 86 times

Want to check like Valid URL's are:

www.mywebsite.com
http://www.mywebsite.com
https://www.mywebsite.co.in

Invalid URL's are

wwww.mywebsite.com
htt://www.mywebsite.com
htto://www.mywebsite.com

I try

 NSString *urlRegEx =
     @"(http|https)://((\\w)*|([0-9]*)|([-|_])*)+([\\.|/]((\\w)*|([0-9]*)|([-|_])*))+";

This and another regex which must have to http or https, and also it is taking many "w". And only www.mywebsite.com is invalidate by this regex.

Search all the web but stuck here.

edited May 20 '15 at 06:48

nhahtdh

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asked May 20 '15 at 06:40

BHASKAR

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you could try creating an NSURL from it – nielsbot May 20 '15 at 06:44
Just pass it to NSURL, then pick out the schema and check it? – nhahtdh May 20 '15 at 06:44
@trojanfoe: Don't dup it with a regex question. Regex is a poor tool here. – nhahtdh May 20 '15 at 06:45
@nhahtdh The OP is using a regular expression so I am assuming that's what he wants to use. – trojanfoe May 20 '15 at 06:45
@trojanfoe: When close dup, use the best question possible for the context. Here, the OP wants to know if a URL is valid or not in iOS, so it's best to use the available tool, rather than a flaky regex. – nhahtdh May 20 '15 at 06:47
Regular expressions are available in iOS so it's appropriate. – trojanfoe May 20 '15 at 06:48
Note that `wwww` or `ww1` can point to a valid host - you never know. – nhahtdh May 20 '15 at 06:49
Take the highest voted answer from the dupe, not necessarily th voted correct answer – Wain May 20 '15 at 06:56
all the answer is not working what i want – BHASKAR May 20 '15 at 07:14
Try this NSString *urlRegEx = @"http(s)?://([\\w-]+\\.)+[\\w-]+(/[\\w- ./?%&=]*)?"; – Nikita Khandelwal May 20 '15 at 07:18
Remove delimiters, use double slashes where necessary. NSString * expression = @"(?:(?:http|https)://)?[a-zA-Z0-9./\\?:@\\-_=#]+\\.([a-zA-Z0-9./\\?:@\\-_=#])*";. It can even be contracted to NSString *pattern = @"(?:(?:http|https)://)?[\\w./\\?:@=#-]+\\.([\\w./\\?:@=#-])*"; – Nikita Khandelwal May 22 '15 at 11:38

How can i validate an nsstring is valid url?

0 Answers0