regex - pull out hostname For this use case, java.net.URI is better. But it an be adapted for any language. For case 2, I can use 2 step solution. Please help us improve Stack Overflow. In Amazon EC2, what's the best way to clone a private github repository on boot? There is also a small library which wraps it and provides query params: https://github.com/sadams/lite-url (also available on bower). If you change the URL to . : https? Any URL can be processed and parsed using Regular Expression. Syntax parse_url ( url) Parameters Returns An object of type dynamic that included the URL components: Scheme, Host, Port, Path, Username, Password, Query Parameters, Fragment. Extracting Domain Name From URLs Using Regular Expressions - Medium What is the correct way to screw wall and ceiling drywalls? Is there a regular expression to detect a valid regular expression? Asking for help, clarification, or responding to other answers. How can we prove that the supernatural or paranormal doesn't exist? 0036501237654 Terminal Filter for G0-3 Creality CR-X Pro. Is there a single-word adjective for "having exceptionally strong moral principles"? you could then further parse the host ('.' (As in, enough to debug and maintain it). Although +1 for hometoast. Parsing and Processing URL using Python - Regex - GeeksforGeeks The second put the path in the hostname. How to match a specific column position till the end of line? "-" (dash or hyphen) is a valid domain name character, and not normally matched by \w, Regular expression to extract hostname from fully qualified domain name, How Intuit democratizes AI development across teams through reusability. The URL class gets a newly created URL object in relation to the URL set by the users. What am I doing wrong here in the PlotLegends specification? If you have the capabilities for non-capturing matches, you can modify hometoast's expression so that subexpressions that you aren't interested in capturing are set up like this: You'd still have to copy and paste (and slightly modify) the Regex into multiple places, but this makes sense--you're not just checking to see if the subexpression exists, but rather if it exists as part of a URL. Example 3: For a general URL, this can be used, where the path elements can also be constructed. Get Mark Richardss Software Architecture Patterns ebook to better understand how to design componentsand how they should interact. For example, you want to extract www.regexcookbook.com from http://www.regexcookbook.com/. The result (in JavaScript) looks like this: I was trying to solve this in javascript, which should be handled by: since (in Chrome, at least) it parses to: However, this isn't cross browser (https://developer.mozilla.org/en-US/docs/Web/API/URL), so I cobbled this together to pull the same parts out as above: Credit for this regex goes to https://gist.github.com/rpflorence who posted this jsperf http://jsperf.com/url-parsing (originally found here: https://gist.github.com/jlong/2428561#comment-310066) who came up with the regex this was originally based on. What is the difference between canonical name, simple name and class name in Java Class? However modifying it to the following regex worked for me: For browser / nodejs environment there is a built in URL class which share the same signature it seems. ]*:// # Scheme ( [a-z0-9\-._~%!$&' ()*+,;=]+@)? Please enable JavaScript to use this web application. http://test.example.com/dir/subdir/file.html. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. I think the point was to use a library, rather than reinvent the wheel. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Here you can find how to extract scheme, domain, TLD, port and query path: Hi Dve, I've improved it a little more to extract. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2, Get part of a URL after domain using Regex, Getting second last parameter from querystring with PHP. I need the regex solution for it to work and no java code that does it without regex. 2: www.thomas-bayer.com A slight modification to @Hicham's answer, ^(https|git)(:\/\/|@)([^\/:]+)[\/:]([^\/:]+)\/(.+?)(\.git)?$. and proof that no regexp is perfect, here's one immediate correction: I modified this regex to identify all parts of the URL (improved version) - code in Python, great answer! An explanation of your regex will be automatically generated as you type. Otherwise, there are better language-specific solutions than using a regex. Connect and share knowledge within a single location that is structured and easy to search. What is the maximum length of a URL in different browsers? If provided, the extracted substring is converted to this type. the output will be the following : How can I validate an email address using a regular expression? Asker asked for regex. Mutually exclusive execution using std::atomic? ( [^:\/?\n]+)/ Click To Copy Matches: https://regexpattern.com /post.php?post=145&action=edit Terms of service Privacy policy Editorial independence. (? The regex ^(https|git)(:\/\/|@)([^\/:]+)[\/:]([^\/:]+)\/(.+).git$ works for the three types of URL. The links to the first and last samples are broken. regex101: Extract domain from URL Dive in for free with a 10-day trial of the OReilly learning platformthen explore all the other resources our members count on to build skills and solve problems every day. The practice way is to use a list of TLDs. : www \.)? How can this new ban on drag possibly be considered constitutional? Propose a much more readable solution (in Python, but applies to any regex): subdomain and domain are difficult because the subdomain can have several parts, as can the top level domain, http://sub1.sub2.domain.co.uk/, (Markdown isn't very friendly to regexes). Why are physically impossible and logically impossible concepts considered separate in terms of probability? Syntax: window.location.propertyname Example 1: In this example, we will use the self URL, where the code will run to extract the hostname. So if I had. Regex To Extract Domain Name From URL - Regex Pattern Get Regular Expressions Cookbook, 2nd Edition now with the OReilly learning platform. Asking for help, clarification, or responding to other answers. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? If case 1 works for me. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Do you understand the regexp you quoted? results in the following subexpression matches: For what it's worth, I found that I had to escape the forward slashes in JavaScript: ^(([^:\/?#]+):)?(\/\/([^\/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))? By using our site, you This improved version should work as reliably as a parser. You can use standard Unix commands such as sed, awk, grep, Perl, Python and more to get a domain name from a URL. Given ANY GitHub repository url string like: What is the best way in bash to extract the repository name my-repo from any of the following strings? Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? Why does Mister Mxyzptlk need to have a weakness in the comics? Your regex has been saved and may be accessed with this link by anybody you give it to. You may use this regex with optional matches and capture groups: Thanks for contributing an answer to Stack Overflow! Explaination (see it in action on regex101): This if far from perfect, as something like https@github.com:some-user/my-repo.git would match, but I think it's fine enough for extraction. Find centralized, trusted content and collaborate around the technologies you use most. Syntax: re.findall (regex, string) Return: all non-overlapping matches of pattern in string, as a list of strings. No need to write regex. Parsing Hostname and Domain from a Url with Javascript Has 90% of ice around Antarctica disappeared in less than a decade? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, What programming language are you dealing with? rev2023.3.3.43278. +36301234567 Calculating probabilities from d6 dice pool (Degenesis rules for botches and triggers). : \/\/)? So far I am solving the first case using a 2 step solution. and anchors e.g. ts By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. This works very well. Now, let's see the examples: Example 1: In this Example, we will be extracting the protocol and the hostname from the given URL. ([^:\/\n]+) / igm ^ asserts position at start of a line Non-capturing group (? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The regular expression, written by Berners-Lee, et al., is: The numbers in the second line above are only to assist readability; sammy the bull podcast review; Tags . Solution Extract the host from a URL known to be valid \A [a-z] [a-z0-9+\-. url.scan(/^(http://[^/]+)((?:/[^/]+)+(?=/))?/?(?:[^/]+)?$/i).to_s. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Thanks for contributing an answer to Stack Overflow! Is a PhD visitor considered as a visiting scholar? Its not too short and not too complex. I needed some REGEX to parse the components of a URL in Java. For example, you want to extract 80 from - Selection from Regular Expressions Cookbook, 2nd Edition [Book] . 2023, OReilly Media, Inc. All trademarks and registered trademarks appearing on oreilly.com are the property of their respective owners. I need the regex solution for it to work and no java code that does it without regex. note that this solution requires an existence of protocol prefix, for example. language agnostic - Getting parts of a URL (Regex) - Stack Overflow