Regular expression for validating hostname

20-Jun-2017 02:51

Printf("%s is a valid hostname : %v \n", host3, v Host3) host4 := " v Host4 := valid Host(host4) fmt.Printf("%s is a valid hostname : %v \n", host4, v Host4) Output : is a valid hostname : true socketloop_com is a valid hostname : false socketloop/com is a valid hostname : false a valid hostname : true IF you gain some knowledge or the information here solved your programming problem.A URL is a good example of something users routinely enter incorrectly.Consider an application where you read a URL from a config file or some other user-entered location.

regular expression for validating hostname-85

The second parenthesis is to match the hostname, anything before the first occurrence of '/' after the protocol string will belong to the hostname.

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This can be called as either a subroutine or a method.

The second parenthesis is to match the hostname, anything before the first occurrence of '/' after the protocol string will belong to the hostname.

2.8k Golang : Create and resolve(read) symbolic links 6.5k Golang : Strings to lowercase and uppercase example 1.7k Golang : Aligning strings to right, left and center with fill example420 Golang : How to check if a file is hidden?

1.4k How to let Facebook Login button redirect to a particular URL ? Vars() function example 2.7k Golang : Find file size(disk usage) with filepath.

See the How to Ask page for help clarifying this question.

This can be called as either a subroutine or a method.

These Regexs are examples and not built for a particular Regex engine. In particular, this means that character classes do not contain meta characters which need to be escaped, except the Regex Library Site A site that has a HUGE library of regular expressions and other regex resources Regex Tutorial Site A site with lots of tutorials on writing Regexs and numerous examples Regex Construction Tool A free regex construction tool Regex Explanation Tool