Trying to create pattern for Domain Name

Question

I am trying to create a Pattern to Validate Domain Name without "http://www" , but I am unable to do so Completely please someone help me;

"\\.[a-zA-Z][a-zA-Z]"
".*?([^.]+\\.[^.]+)"

Have a look at this : http://stackoverflow.com/questions/569137/how-to-get-domain-name-from-url — Kazekage Gaara, Jun 01 '12 at 09:26

score 3 · Answer 1 · answered Jun 01 '12 at 09:27

Pattern: ^[a-zA-Z0-9\-\.]+\.(com|org|net|mil|edu|COM|ORG|NET|MIL|EDU)$

Description
Domain names: This regular expression tests the validity of a domain or hostname. It will match any valid domain name that does not contain characters which are invalid in URLs, and which ends in .com, .org, .net, .mil, or .edu. You can add additional valid TLDs by appending the | (pipe) character and the desired TLD to the list in the parens.

Matches
3SquareBand.com | asp.net | army.mil

For more patterns check here

Note that this pattern constrains on only a few top level domains. It would fail, for example, for domains in .info or .photography — Christopher Ambler, Feb 20 '15 at 03:42

score 3 · Accepted Answer · answered Jun 01 '12 at 09:35

3

Have you tried patterns from class Patterns ?

answered Jun 01 '12 at 09:35

Buda Gavril

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will you please help me to use this – Krishnakant Dalal Jun 01 '12 at 09:40
in package android.util is Patterns class which contains some patterns: TOP_LEVEL_DOMAIN_STR Regular expression to match all IANA top-level domains. TOP_LEVEL_DOMAIN_STR_FOR_WEB_URL Regular expression to match all IANA top-level domains for WEB_URL. TOP_LEVEL_DOMAIN Regular expression pattern to match all IANA top-level domains. WEB_URL Regular expression pattern to match most part of RFC 3987 Internationalized URLs, aka IRIs. – Buda Gavril Jun 01 '12 at 09:45
Yes I read this but not able to use it Please tell me how to use this class – Krishnakant Dalal Jun 01 '12 at 09:49
Hey thanks gabi I was using Android 2.1 so I was not able to implement this. Now i can thanks. – Krishnakant Dalal Jun 01 '12 at 10:14

score 0 · Answer 3 · answered Jun 01 '12 at 13:07

0

That Pattern API is not perfect in my case so I used this Regular Expression.

Pattern p = Pattern.compile("^(http|ftp|https)://|^[a-zA-Z0-9]+\\.[a-zA-Z][a-zA-Z]" );

answered Jun 01 '12 at 13:07

Krishnakant Dalal

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score 0 · Answer 4 · edited Oct 10 '12 at 18:45

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For Java developers, this pattern works for my problem:

private static final String DOMAIN_START_END_PATTERN_STRING =
    "^([a-zA-Z0-9]([a-zA-Z0-9\\-]{0,65}[a-zA-Z0-9])?\\.)+[a-zA-Z]{2,6}$";

edited Oct 10 '12 at 18:45

t0mm13b

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answered Jul 25 '12 at 08:53

Frost

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Note that this pattern presumes all TLDs are 2-6 characters in length. This is not the case, with new TLDs like .photography – Christopher Ambler Feb 20 '15 at 03:42

Trying to create pattern for Domain Name

4 Answers4