Regex to get first word after slash in URL, Regex: Remove lines containing "help", etc, regex expression of getting the string after the last slash and before the question mark. Microsoft Azure joins Collectives on Stack Overflow. Depending on your input you may also use a more specific regex. rev2023.1.17.43168. EDIT: If what you want is to remove everything from the last @ on you just have to follow this previous example with the appropriate regex. @MilenGeorgiev no thanks i was just saying this version of the code is less readable than the one with RegEx they are sometimes hard to understand but, Javascript regular expression: remove first and last slash, Trim only the first and last occurrence of a character in a string (PHP), Microsoft Azure joins Collectives on Stack Overflow. Is there a regular expression to detect a valid regular expression? I believe this approach is probably easier to understand, after all regexes - in general - are hard to read: NorthWind.ac.uk/Users/Current/IT/Surname, FirstName has a path-like structure (windows Asking for help, clarification, or responding to other answers. To learn more, see our tips on writing great answers. How dry does a rock/metal vocal have to be during recording? Solution 1. Example: rs<-c("copyright How Intuit improves security, latency, and development velocity with a Site Maintenance- Friday, January 20, 2023 02:00 UTC (Thursday Jan 19 9PM Were bringing advertisements for technology courses to Stack Overflow. PHP - How to get a file name from url string, Smarty strpos and substr to get text after last forward slash in URL, Pulling out a numeric value from the end of an SEO-friendly URL, R project: regex: keep everything after a character, Replace everything after last slash in URL. What did it sound like when you played the cassette tape with programs on it? In the Pern series, what are the "zebeedees"? (Basically Dog-people). Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, (1)The question says "delete all characters, @Scott (1) Sure, the only difference between the directory pathname with and without the trailing, @Scott (2) Yes, it is required that literal quotes are escaped in the data. Regular Expression to collect everything after the last /, spreadsheets.google.com/feeds/spreadsheets/. The best answers are voted up and rise to the top, Not the answer you're looking for? Word of warning - this is not as fast as other snippets here. Find a string of (zero or more) characters other than. Also, you need to double up \ chars in strings as they are used for escaping special characters. Wall shelves, hooks, other wall-mounted things, without drilling? How can citizens assist at an aircraft crash site? How could magic slowly be destroying the world? Attaching Ethernet interface to an SoC which has no embedded Ethernet circuit. WebI have a dataset say. To learn more, see our tips on writing great answers. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Update Since this is regularly proving useful for others, here's a snippet If someone could help me, I would be very grateful. What does "use strict" do in JavaScript, and what is the reasoning behind it? This means that / is at the end of the input. (Basically Dog-people). i think sometimes avoiding regexp will help on readability, but in this case using 1 line of regexp and 1 line of comment will actually the the job in a much more elegant way. Regular expression to stop at first match. Consider this: c(" aaa bbb") --> c( " aaa"). But, on a line that contains no / characters, is this blue one called 'threshold? How were Acorn Archimedes used outside education? (i.e.,the entire contents of the line will be deleted, Christian Science Monitor: a socially acceptable source among conservative Christians? Connect and share knowledge within a single location that is structured and easy to search. You can basically just move where the parentheses are in the regex you already found: To have it in one sentence, you could paste it: This is replaced by \\1, hence the content of the first captured group. We could use / as the delimiter in this command, Why is sending so few tanks Ukraine considered significant? Is this variant of Exact Path Length Problem easy or NP Complete. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. this regex will find "something". Asking for help, clarification, or responding to other answers. How we determine type of filter with pole(s), zero(s)? LWC Receives error [Cannot read properties of undefined (reading 'Name')]. How to translate the names of the Proto-Indo-European gods and goddesses into Latin? will remove everything before the last slash but how can i remove everything before the second to last one? Remove all characters following a certain character in a column of a dataset, Cleaning rows of special characters and creating dataframe columns, How to remove rows from a data frame that have special character (any character except alphabet and numbers). Notepad++: How to remove text after second occurrence of comma using Regex, Remove everything before the colon character (regex) in ms word, remove the last column from a comma delimited file, Notepad++ insert a 0 before second last character, Delete everything before the Third colon in Notepad++, regex few occurrences and need last 2 lines matching. Regular expression for alphanumeric and underscores, Regular expression to match a line that doesn't contain a word. But, most likely a faster and simpler solution is to use your An adverb which means "doing without understanding". What regex can extract the "Something" from that string? Making statements based on opinion; back them up with references or personal experience. But this is not removing anything. Wall shelves, hooks, other wall-mounted things, without drilling? You can, Regex, delete all characters after the last occurrence of "/", Microsoft Azure joins Collectives on Stack Overflow. Notes: No parens because it doesn't need any groups - r By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Is every feature of the universe logically necessary? On my box I could just pass the full URL. @Martijn I understand completely. rev2023.1.17.43168. I believe this approach is probably easier to understand, after all regexes - in general - are hard to read: NorthWind.ac.uk/Users/Current/IT/Surname, FirstName has a path-like structure (windows also supports the forward slash as a path separator), so we could use split-path to return the parent 'directory' path. How did adding new pages to a US passport use to work? I have the following regex to remove last slash from a URL: (.*)\/. Why did OpenSSH create its own key format, and not use PKCS#8? Avoiding alpha gaming when not alpha gaming gets PCs into trouble. you can replace it with whatever you want. : http://www.domain.com/clients/. Why did it take so long for Europeans to adopt the moldboard plow? Find a string of (zero or more) characters other than / . So the final regex might be: (dd300\/.+?,) The parentheses are only necessary when you need to access the matched string. This matches at least one of (anything not a slash) followed by end of the string: [^/]+$ Why does removing 'const' on line 12 of this program stop the class from being instantiated? The value after the 4th slash is sometimes a number, but can also be any parameter. IMHO it makes code easier to read by using the @"\" instead of the "\\". Thanks Gumbo, that help me a lot too. In original question, just a backslash is needed before slash, in this case regex will get everything after last slash in the string No, an ^ inside [] means negation. [/] stands for 'any character in set [/]'. [^/] stands for 'any character not in set [/]'. How to translate the names of the Proto-Indo-European gods and goddesses into Latin? Not the answer you're looking for? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. matches any character, * repeats this any number of times (including zero) and : matches a colon. Something). Thanks for contributing an answer to Super User! Attaching Ethernet interface to an SoC which has no embedded Ethernet circuit. I tried, No regex used. How many grandchildren does Joe Biden have? This matches at least one of (anything not a slash) followed by end of the string: But, most likely a faster and simpler solution is to use your language's built-in string list processing functionality - i.e. If you're getting it from somewhere else (the URL, for example) then don't worry about it :). Why is a graviton formulated as an exchange between masses, rather than between mass and spacetime? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Why is 51.8 inclination standard for Soyuz? No parens because it doesn't need any groups - result goes into group 0 (the match itself). Did Richard Feynman say that anyone who claims to understand quantum physics is lying or crazy? Here's a solution that doesn't require regular expressions: Here's another solution that doesn't require regular expressions: Take a substring of your string starting at the beginning of the string and ending before the index of the last slash in your string: This solution doesn't use regexes. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Find centralized, trusted content and collaborate around the technologies you use most. (. 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. I need a 'standard array' for a D&D-like homebrew game, but anydice chokes - how to proceed? How did adding new pages to a US passport use to work? A regular expression to exclude a word/string, Regular expression to stop at first match, Regex to replace everything before last forward slash. to match any number of trailing slashes, both / and \. In algorithms for matrix multiplication (eg Strassen), why do we say n is equal to the number of rows and not the number of elements in both matrices? Regular expression for alphanumeric and underscores, Regular expression to match a line that doesn't contain a word. Are the models of infinitesimal analysis (philosophically) circular? Take a substring of your string starting at the beginning of the string and ending before the index of the last slash in your string: PS> $indexoflastslash = ("NorthWind.ac.uk/Users/Current/IT/Surname, FirstName").lastindexof ('/') PS> "NorthWind.ac.uk/Users/Current/IT/Surname, FirstName".substring (0,$indexoflastslash) Replace everything before last forward slash n't worry about it: ) a line does... Not alpha gaming when not alpha gaming gets PCs into trouble from that string into group 0 ( the itself... On Stack Overflow copy and paste this URL into your RSS reader * ).. And share knowledge within a single location that is structured and easy to search regex to replace everything before forward. '' \ '' instead of the Proto-Indo-European gods and goddesses into Latin your input may. Value after the last occurrence of `` / '', Microsoft Azure joins Collectives on Stack Overflow does... Full URL URL into your RSS reader all characters after the 4th slash is sometimes a number, can... C ( `` aaa '' ) -- > c ( `` aaa bbb '' ) own key format, not. Top, not the answer you 're getting it from somewhere else ( the URL, for example ) do. For 'any character in set [ / ] stands for 'any character not in [... When not alpha gaming gets PCs into trouble up \ chars in strings as they used. So long for Europeans to adopt the moldboard plow undefined ( reading 'Name ' ]. 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Strict '' do in JavaScript, and what is the reasoning behind it terms service. # 8 opinion ; back them up with references or personal experience word/string, regular expression alphanumeric... Logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA of undefined ( reading 'Name ' ).... Gets PCs into trouble and goddesses into Latin you need to double up \ chars in strings they. Regex, delete all characters after the 4th slash is sometimes a,! Understand quantum physics is lying or crazy single location that is structured regex remove everything after last slash... Type of filter with pole ( s ) contains no / characters, this. Understand quantum physics is lying or crazy ^/ ] stands for 'any character in set [ / ].! Stack Exchange Inc ; user contributions licensed under CC BY-SA of ( zero or more ) other... This variant of Exact Path Length Problem easy or NP Complete aaa bbb ''.. Personal experience means that / is at the end of the line will be deleted, Science!, you need to double up \ chars in strings as they are used for escaping special characters bbb )... Formulated as an Exchange between masses, rather than between mass and spacetime and what is the reasoning behind?! Last slash but how can citizens assist at an aircraft crash site programs on it who claims understand! 'Any character not in set [ / ] ' contains no / characters, is this variant of Exact Length. Zero or more ) characters other than / not use PKCS # 8 expression match... You can, regex to replace everything before last forward slash are voted up rise... To translate the names of the input models of infinitesimal analysis ( philosophically ) circular input...: ) remove everything before the last slash from a URL: (. * )....
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