^((http[s]?):\/\/)?([a-zA-Z0-9-.]*)?([\/]?[^?#\n]*)?([?]?[^?#\n]*)?([#]?[^?#\n]*)$. 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. Why is there a voltage on my HDMI and coaxial cables? How do I change the URI (URL) for a remote Git repository? The second put the path in the hostname. How to react to a students panic attack in an oral exam? 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. Thanks for contributing an answer to Stack Overflow! but it matched the string from the right and produced: You are close, you just need to add a ? If the particular regex pattern returns true, then I know that this URL is supported by my program. +3611234567 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). If there's no match, or the type conversion fails: null. Learn more about Stack Overflow the company, and our products. Now, let's see the examples: Example 1: In this Example, we will be extracting the protocol and the hostname from the given URL. To find the utter URL information, we will use the URL() constructor. they indicate the reference points for each subexpression (i.e., each delimited) quite easily. What is the best regular expression to check if a string is a valid URL? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. How do you get out of a corner when plotting yourself into a corner. I need 2 regexes to solve each case mentioned above. The advertisements are provided by Carbon, but implemented by regex101.No cookies will be used for tracking and no third party scripts will be loaded. Why are physically impossible and logically impossible concepts considered separate in terms of probability? : https? Follow Up: struct sockaddr storage initialization by network format-string, Trying to understand how to get this basic Fourier Series, Theoretically Correct vs Practical Notation, Calculating probabilities from d6 dice pool (Degenesis rules for botches and triggers). Get domain name from given url, Extract host name/domain name from URL string, and Java regex to extract domain name? Testing out the OpenTelemetry Collector With raw Data This blog post is part of an ongoing series on OpenTelemetry. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Given that the original question was tagged "language-agnostic", what language is this? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Making statements based on opinion; back them up with references or personal experience. How to get the URL of the current page in C#, Regex to check if valid URL that ends in .jpg, .png, or .gif, Extract filename and path from URL in bash script. I think the point was to use a library, rather than reinvent the wheel. tsx PHP serialize / unserialize __sleep __wakeup __serialize __unserialize, Matches scientific references in various forms. This works very well. View all OReilly videos, Superstream events, and Meet the Expert sessions on your home TV. Therefore, as it is a digit (:(\d+)) is used. Get full access to Regular Expressions Cookbook, 2nd Edition and 60K+ other titles, with a free 10-day trial of O'Reilly. (?:www\.)? The information is fetched using a JSONP request, which contains the ad text and a link to the ad image. extract hostname from url regex. 3: ? To extract the hostname portion from a URL, we can use the location object that represents information about the current URL. Why do small African island nations perform better than African continental nations, considering democracy and human development? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. What is the difference between a URI, a URL, and a URN? Thanks, trying to make it a one liner, but not working. url = 'http://domain/dir1/dir2/somefile' Hello world! http://test.example.com/dir/subdir/file.html. The solution MUST work for all types of urls specified above. 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. 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. What I would do is use something like this: the further parse 'the rest' to be as specific as possible. 0 stands for the entire match, 1 for the value matched by the first '('parenthesis')' in the regular expression, and 2 or more for subsequent parentheses. This improved version should work as reliably as a parser. What am I doing wrong here in the PlotLegends specification? regex - Extract repository name from GitHub url in bash - Server Fault Extract repository name from GitHub url in bash Ask Question Asked 10 years, 6 months ago Modified 1 month ago Viewed 20k times 20 Given ANY GitHub repository url string like: git://github.com/some-user/my-repo.git or git@github.com:some-user/my-repo.git or If you have any questions or concerns, please feel free to send an email. Example 1: In this Example, we will be extracting the protocol and the hostname from the given URL. For example, you want to extract 80 from - Selection from Regular Expressions Cookbook, 2nd Edition [Book] . http://msdn.microsoft.com/en-us/library/aa384092%28VS.85%29.aspx, I tried a few of these that didn't cover my needs, especially the highest voted which didn't catch a url without a path (http://example.com/). Our Javascript code for parsing the domain from a url appears as follows: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 By using our site, you You want to extract the host from a string that holds a Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Do you understand the regexp you quoted? regex101: Extract domain from URL Explanation / ^(? Terms of service Privacy policy Editorial independence. 0676987654 None work for me, either the regex doesn't work or the solution is a java code without regex. The function is often called something similar to. For example, you want to extract 80 from http://www.regexcookbook.com:80/. It only takes a minute to sign up. ? How to handle a hobby that makes income in US. paired parenthesis). Otherwise, there are better language-specific solutions than using a regex. The best answer suggested here didn't work for me because my URLs also contain a port. The URL class gets a newly created URL object in relation to the URL set by the users. The best answers are voted up and rise to the top, Not the answer you're looking for? Published by at May 28, 2022. I tried the below regex from the first post: This one works when there is https:// or any scheme but fails when there is no scheme in the URL. The path with the file (/dir/subdir/file.html), (add any other that you think would be useful), match 1 : full protocole with :// (http or https). I believe this, though simple, but much slower than RegEx parsing. 2023, OReilly Media, Inc. All trademarks and registered trademarks appearing on oreilly.com are the property of their respective owners. I would recommend not using regex. Isn't language agnostic. URL class will open a connection when you create it. About an argument in Famine, Affluence and Morality. 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. 4: wsdl=qwerwer&ttt=888. Linear Algebra - Linear transformation question, Replacing broken pins/legs on a DIP IC package. and anchors e.g. See, I'm using an expanded version (play with it on, Extract repository name from GitHub url in bash, How Intuit democratizes AI development across teams through reusability. Does Counterspell prevent from any further spells being cast on a given turn? url.scan(/^(http://[^/]+)((?:/[^/]+)+(?=/))?/?(?:[^/]+)?$/i).to_s. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? Asking for help, clarification, or responding to other answers. As a python developers/programmers, we have to accomplished a lot of data cleansing jobs from a file before processing the other business operations. How to match a specific column position till the end of line? Get a match for a regular expression from a source string. If so, how close was it? Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. ts I need the regex solution for it to work and no java code that does it without regex. I tried this regex for parsing url partitions: URL: https://www.google.com/my/path/sample/asd-dsa/this?key1=value1&key2=value2. Can airtags be tracked from an iMac desktop, with no iPhone? Can Martian regolith be easily melted with microwaves? Connect and share knowledge within a single location that is structured and easy to search. To make it optional as all URLs do not end with host number, this syntax is used (:(\d+))?. Any URL can be processed and parsed using Regular Expression. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? For an example, you have a raw data text file containing web scrapping data and you have to read some specific data like . 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? This answers also helpfull: (? Is a PhD visitor considered as a visiting scholar? rev2023.3.3.43278. For example, I have this URL, and I have an enumeration that lists all supported URLs in my program. @Paul Beckingham, you wrong, it return array matches. Server Fault is a question and answer site for system and network administrators. Why do academics stay as adjuncts for years rather than move around? 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. Asking for help, clarification, or responding to other answers. 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. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Data Structure & Algorithm-Self Paced(C++/JAVA), Android App Development with Kotlin(Live), Full Stack Development with React & Node JS(Live), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Adding new column to existing DataFrame in Pandas, How to get column names in Pandas dataframe, Python program to convert a list to string, Reading and Writing to text files in Python, Different ways to create Pandas Dataframe, isupper(), islower(), lower(), upper() in Python and their applications, Python | Program to convert String to a List, Check if element exists in list in Python, How to drop one or multiple columns in Pandas Dataframe. 2: www.thomas-bayer.com What is the point of Thrower's Bandolier? Works better than some of the others mentioned because they had some bugs (such as not supporting username/password, not supporting single-character filenames, fragment identifiers being broken). You want to extract the port number from a string that A hostname is a simple string representing the particular authority within the Internet domain. Take OReilly with you and learn anywhere, anytime on your phone and tablet. The regular expression, written by Berners-Lee, et al., is: The numbers in the second line above are only to assist readability; extract user name and password from url using regex and sql. If you want to match the whole domain / ip address (not separated by dots) use this one: This is great but could really do with a version like this that pulls out subdomains instead of the duplicated host, hostname. Hostnames sometimes use "-" so simple method dont work. Since the above getHostName () method gets us very close to a solution, we just need to remove the sub-domain and clean-up special cases (such as .co.uk). +3699123456 How can we prove that the supernatural or paranormal doesn't exist? View all OReilly videos, Superstream events, and Meet the Expert sessions on your home TV. How can I extract the following parts using regular expressions: The regex should work correctly even if I enter the following URL: A single regex to parse and breakup a The advertisements are provided by Carbon, but implemented by regex101.No cookies will be used for tracking and no third party scripts will be loaded. The practice way is to use a list of TLDs. :txt|pdf) or (? The information is fetched using a JSONP request, which contains the ad text and a link to the ad image. So, each enumeration has it's own regex depending on where it should look inside the URL. Example 2: If the URL is of a different type such as file://localhost:4040/zip_file, with the port number along with it, then to extract the port number, as it is optional we will use the ? notation. If you preorder a special airline meal (e.g. I need the regex solution for it to work and no java code that does it without regex. How to count the frequency of unique values in NumPy array? For an example, you have a raw data text file containing web scrapping data and you have to read some specific data like website URLs by to performing the actual Regular Expression matching to pull the domain names. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I've included named backreferences for legibility, and broken each part into separate lines, but it still looks like this: The thing that requires it to be so verbose is that except for the protocol or the port, any of the parts can contain HTML entities, which makes delineation of the fragment quite tricky. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. that works :) Could you add this as the answer? In Amazon EC2, what's the best way to clone a private github repository on boot? If it's homework, then say that because that's your constraint. How to match a specific column position till the end of line? Do new devs get fired if they can't solve a certain bug? The regex for an html entity looks like this: When that is extracted (I used a mustache syntax to represent it), it becomes a bit more legible: In JavaScript, of course, you can't use named backreferences, so the regex becomes. Will extract out the .git suffix as well. The JSON file and images are fetched from buysellads.com or buysellads.net. I'm using Splunk Enterprise 7.1.2, if that matters. What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? First, extract the hostname then the domain name from it. If u want to change the file extension match, just replace : (? For case 2, I can use 2 step solution. 0. Making statements based on opinion; back them up with references or personal experience. This is what I'm using: Using http://www.fileformat.info/tool/regex.htm hometoast's regex works great. There are also live events, courses curated by job role, and more. RegEx match open tags except XHTML self-contained tags. . There is also a small library which wraps it and provides query params: https://github.com/sadams/lite-url (also available on bower). By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Get Regular Expressions Cookbook, 2nd Edition now with the OReilly learning platform. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Using the non-capturing modifier for subexpressions can give you what you need and nothing more, which, if I'm reading you correctly, is what you want. matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy) http 2023, OReilly Media, Inc. All trademarks and registered trademarks appearing on oreilly.com are the property of their respective owners. Let's see various commands and options to grab the domain part from a given variable under Linux or Unix-like system. (You must be signed in to vote), 1 upvotes, 0 downvotes (100% like it) Get Mark Richardss Software Architecture Patterns ebook to better understand how to design componentsand how they should interact. 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. to make it not greedy. How do I create a Java string from the contents of a file? I know you're claiming language-agnostic on this, but can you tell us what you're using just so we know what regex capabilities you have? How to convert NumPy datetime64 to Timestamp? How to tell which packages are held back due to phased updates. Regular expression to extract DNS host-name or IP Address from string . How can this new ban on drag possibly be considered constitutional? Your solution does not truncate protocols, which should not be part of a hostname-yielding solution. Although +1 for hometoast. But here is the deal, I want to use different regex patterns in different situations in my program. Please explain to us why this needs to be done with a regex. full URL including query parameters The regex to do full parsing is quite horrendous. Is it possible to rotate a window 90 degrees if it has the same length and width? Using Hitcham's awesome answer above allowed me to come up with this, using sed to output exactly what needed: org/reponame with sed. Given the URL (single line): An API call like WinHttpCrackUrl() is less error prone. I'm a few years late to the party, but I'm surprised no one has mentioned the Uniform Resource Identifier specification has a section on parsing URIs with a regular expression. Some of the threads which I have already checked: Get domain name from given url, Extract host name/domain name from URL string, and Java regex to extract domain name? So far I am solving the first case using a 2 step solution. you could then further parse the host ('.' For example, you want to extract www.regexcookbook.com from http://www.regexcookbook.com/. basename is my favorite, but you can also use sed: "sed" will delete all text until the last / + the .git extension (if exists), and will retain the match of group \1 which is everything except dot ([^.]+). "-" (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 capture group to extract. So if I had. Mutually exclusive execution using std::atomic? It breaks when the protocol is implied HTTP with a username/password (an esoteric and technically invalid syntax, I admit):, e.g. and grab the first item from the split array. None of the above worked for me. It looks like this doesn't parse out the subdomain though? How do I declare and initialize an array in Java? Is it possible to rotate a window 90 degrees if it has the same length and width? https://www.google.com/dir/1/2/search.html?arg=0-a&arg1=1-b&arg3-c#hash, ^((http[s]?|ftp):\/)?\/?([^:\/\s]+)((\/\w+)*\/)([\w\-\.]+[^#?\s]+)(.*)?(#[\w\-]+)?$. 2: www.thomas-bayer.com Choosing something from an RFC can surely never bad the wrong thing to do. String s = "https://www.thomas-bayer.com?wsdl=qwerwer&ttt=888"; What is the difference between canonical name, simple name and class name in Java Class? However the list need to maintain it since new TLDs is possible. What sort of strategies would a medieval military use against a fantasy giant? What are the differences between a HashMap and a Hashtable in Java? Connect and share knowledge within a single location that is structured and easy to search. Anchor to start of pattern, or at the end of the most recent match. To learn more, see our tips on writing great answers. regex/.htaccess/ mod-rewrite/ url-rewriting/ friendly-url. Extracting the Domain name accurately can be quite tricky mainly because the domain extension can contain 2 parts (like .com.au, BI Specialist || Azure || AWS || GCP SQL|Python|PySpark Talend, Alteryx, SSIS PowerBI, Tableau, SSRS. Are there tables of wastage rates for different fruit and veg? What is the maximum length of a URL in different browsers? rev2023.3.3.43278. Has 90% of ice around Antarctica disappeared in less than a decade? 3: / Why are physically impossible and logically impossible concepts considered separate in terms of probability? If provided, the extracted substring is converted to this type. *}, @kenn: then they'd not be a valid remote for git, however. Not the answer you're looking for? Extracting the Host from a URL Problem You want to extract the host from a string that holds a URL. How can I extract the following parts using regular expressions: The Subdomain (test) The Domain (example.com) The path without the file (/dir/subdir/) The file (file.html) The path with the file (/dir/subdir/file.html) The URL without the path ( http://test.example.com) (add any other that you think would be useful) and I will use this, Java regex to extract host name and domain name from a URL, Extract host name/domain name from URL string, How Intuit democratizes AI development across teams through reusability. 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. Why is this sentence from The Great Gatsby grammatical? How do I modify the URL without reloading the page? Disconnect between goals and daily tasksIs it me, or the industry? Java offers a URL class that will do this. Extracting the Port from a URL Problem You want to extract the port number from a string that holds a URL. It would probably be less resource intensive to just split the string on, Actually it is Microsoft Excel 2007, and I added the RegExFind Add-in from here. Example Run the query Kusto print Result=parse_url("scheme://username:password@host:1234/this/is/a/path?k1=v1&k2=v2#fragment") Output Result Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, What programming language are you dealing with? Regex To Match All Parameters In A URL I realize I'm late to the party, but there is a simple way to let the browser parse a url for you without a regex: I found the highest voted answer (hometoast's answer) doesn't work perfectly for me. (? or #. Connect and share knowledge within a single location that is structured and easy to search. REPO_NAME=${`basename $REPO_URL`%. 0036501237654 Terminal Filter for G0-3 Creality CR-X Pro. Regular expression for alphanumeric and underscores, Regular expression to match a line that doesn't contain a word. How do you use a variable in a regular expression? How can this new ban on drag possibly be considered constitutional? Specifically this adresses two problems I have seen with the others: This answer deserves more up-votes because it covers pretty much all the protocols. URL. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. (You must be signed in to vote). Doing it in one regex is, well, a bit crazy. just the difficult task is to break the host into sub domain, domain name and TLD. You can use standard Unix commands such as sed, awk, grep, Perl, Python and more to get a domain name from a URL. Its not too short and not too complex. :png|jpg|jpeg) by anything u want. Just as a small, small note, hometoast's expression doesn't need to put brackets around the 's' for 'https', since he only has one character in there. It is the element of the window object and a client-side object. holds a URL. rev2023.3.3.43278. Day, Hour, Min and Second from a specified date Regular expression to extract numbers from a string in Golang . Should I put my dog down to help the homeless? How can I open a URL in Android's web browser from my application? URL or Uniform Resource Locator consists of many information parts, such as the domain name, path, port number etc. It accepts only most common email addresses and it favors simplicity over exhaustivity, but should work for 99% of the cases. Regexes can be costly. http://test.example.com/dir/subdir/file.html, section on parsing URIs with a regular expression, https://gist.github.com/jlong/2428561#comment-310066, http://www.fileformat.info/tool/regex.htm, https://developer.mozilla.org/en-US/docs/Web/API/URL/searchParams, https://www.thomas-bayer.com?wsdl=qwerwer&ttt=888, How Intuit democratizes AI development across teams through reusability. Regular expression for extracting protocol group: ' (\w+):// '. Trying to understand how to get this basic Fourier Series, Minimising the environmental effects of my dyson brain. Furthermore provides: - the entire url - the protocol - the hostname/ip - the port - the path - the querystring DNS hostname well-formedness validation Validates that a DNS hostname is well-formed only. The capture group to extract. From my answer on a similar question. : \/\/)? The JSON file and images are fetched from buysellads.com or buysellads.net. It is pretty simple. There are also live events, courses curated by job role, and more. : www \.)? : \/\/)? Seems like I needed to remove the "host" keyboard from the above. https://gist.github.com/voodooGQ/4057330. extract(regex, captureGroup, source [, typeLiteral]). To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Beware that it doesn't work if the URL doesn't have a path after the domain -- e.g. What is the purpose of this D-shaped ring at the base of the tongue on my hiking boots? (As in, enough to debug and maintain it). What about 'aaa.bbb.co.uk' - that would yield 'aaa.bbb.co' which is not right. Catch values from Goroutines Simple function with parameters in Golang Regular expression to extract domain from URL Different ways to validate JSON string . http: www.hostname.org blog anything http: www.hostname.org blog anything . Linear Algebra - Linear transformation question. Find centralized, trusted content and collaborate around the technologies you use most. 5 I am VERY rusty with regular expressions and need one to extract a hostname from a fully qualified domain name (FQDN), here's an example of what I have: myhostname.somewhere.env.com myotherhostname.somewhereelse.insomeotherplace.byh.info and I want to return myhostname myotherhostname Would really appreciate some help I tried " (.+)\."