regex everything before dash

[^-]+- [^-]+ matches the part you want to keep, so you can replace. I verified it in an online. Important: We support RE2 Syntax only, which differs slightly from PCRE. What is the best regular expression to check if a string is a valid URL? If you want to do what you literally describe, which is to return ONLY the word that comes after the first hyphen (up to either a second hyphen or the end of the string), then consider a positive lookbehind expression. Match any word or phrase in the following list: (?i)(\W|^)(baloney|darn|drat|fooey|gosh\sdarnit|heck)(\W|$). To solve this problem, we can simply assign lastIndex to 0 before running each exec command: When searching with a regex, it can be helpful to search for more than one matched item at a time. There's no need to escape the period within the square brackets. That's why I assumed 'grouping' and the '$' sign would be required. FirstParty>Individual:2 2. It only takes a minute to sign up. Incident>Vehicle:2>RegisteredOwner>Individual3. Everything I've tried doesn't work. Why are physically impossible and logically impossible concepts considered separate in terms of probability? tester. (I hope I'm making more sense now, let me know if not). April 14, 2022 - In the software I am using this (a music player/library) it does, but that's then probably because it's not following correct conventions. edit: I tried to made your remarks italic for easier reading, but that doesn't show up? In contrast this regex expression will math on the characters after the last underscore in a world ^ (. Heres a regex that matches 3 numbers, followed by a -, followed by 3 numbers, followed by another -, finally ended by 4 numbers. all have been very helpful to me. We will also go over a couple of popular regex examples and mention a few tools you can use to validate/create your regex expressions. How can I explain to my manager that a project he wishes to undertake cannot be performed by the team? I need to extract text from in between the first two '-' from a string. To learn more, see our tips on writing great answers. FirstName- Lastname. I would look at the SubString method along with the indexOf method. For example, with regex you can easily check a user's input for common misspellings of a particular word. In particular, if you run exec with a global regex, it will return null every other time: JavaScript RegExp objects are stateful when they have the global or sticky flags set They store a lastIndex from the previous match. I've tried adding all this info to my answer, hopefully it's done clearly. So I see many possibilities to achieve this. (?i) makes the content matching case insensitive. February 23, 2023 By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The newline character is the character that you input whenever you press Enter to add a new line. Can I tell police to wait and call a lawyer when served with a search warrant? Where it get's to complicated for me is when there is only 1 "-" in the string. How to show that an expression of a finite type must be one of the finitely many possible values? Is a PhD visitor considered as a visiting scholar? FirstParty:3>FPRep:2>Individual 3. These can even be combined with one another: Here were looking for strings with zero-to-one instances of e and the letter o times 2, so this will match Helloo and Hlloo. SERVERNAMEPNWEBWW04_Baseline20140220.blg Norm of an integral operator involving linear and exponential terms. You can match everything from Hillo to Hello to Hellollollo. I tried your suggestion and it worked perfectly. Use this character to separate words in a phrase. What I am attempting to do is match from the start of the file name to the underscore(not including the underscore). If your language supports (or requires) it, you may wish to use a . How do I remove all non alphanumeric characters from a string except dash? While you could do something like this: Theres an easier alternative, using a regex: However, something you might notice is that if you run youSayHelloISayGoodbyewith Hello, Hi there: it wont match more than a single input: Here, we should expect to see both Hello and Hi matched, but we dont. In the Editing group, click on the Find & Select option In the options that appear in the drop-down, click on the Replace option. One principal in constructing a regex is that you need to state clearly your goals. I verified it in an online regex tester. If "." matches any character, how do you match a literal ".You need to use an "escape" to tell the regular expression you want to match it exactly, not use its special behaviour. It prevents the regex from matching characters before or after the phrase. Regex Match anything that is not a "-" from the start of the string till a "-" Match result21 = Regex.Match (text, @"^ ( [^-]*)-"); Will only match if there is a dash in the string, but the result is then found in capture group 1. It's not wise to use JavaScript to test regular expressions of any other flavor A few less lines.. string resultString = "my-string".Split('-')[0]; Regular Expression to get all characters before "-", http://msdn.microsoft.com/en-US/library/ms228388%28v=VS.80%29.aspx, How Intuit democratizes AI development across teams through reusability. Thanks again for all the help and your time. vegan) just to try it, does this inconvenience the caterers and staff? I have column called assocname. I'm a complete RegEx newbie, with very little knowledge yet. The next action involves dealing with two digit years starting with "0". Follow. I can't really tell you the 'flavor' of regex. SERVERNAMEPNWEBWWI01_Baseline20140220.blg Why is this sentence from The Great Gatsby grammatical? Regex to match everything before an underscore, E:\CollectedPerfLogs\20140220 -file -name $pattern ='/[^_]*/', = $Matches[0] Write-Host "The server name is $, isn't matching even though Discover the power of NestJS, a server-side Node.js framework. Connect and share knowledge within a single location that is structured and easy to search. The \- (which indicates a hyphen) must occur last in the list of characters within the square brackets. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. For example, what if we wanted to find every whitespace character between newlines to act as a basic JavaScript minifier? As such, using the negative lookahead like so: You can even combine these with ^ and $ tokens to try to match full strings. A regular expression to match everything until the last dot(.). By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Most of the entries in the NAME column of the output from lsof +D /tmp do not begin with /tmp. too bad the OP never accepted an answer. If you need more help, add a comment showing what you have attempted and I will offer more help. ), underscore(_) and dash(-) in regex [closed], https://www.regular-expressions.info/ip.html, How Intuit democratizes AI development across teams through reusability. For example. If youd like to see quick definitions of useful regexes, check out our cheat sheet. And then extract the first sub-group from the match result. Must feel like helping a monkey to order bananas online. \W matches any character thats not a letter, digit, or underscore. I thought Id take a second to explain how it acts a bit differently from others.Given a string like This is a string, you might expect the whitespace characters to be matched however, this isnt the case. If you want to include the "All text before this line" text, then the entire match is what you want. \W matches any character thats not a letter, digit, or underscore. Are you a candidate? Can you tell why it would not match. Depending on what particular regular expression framework you're using, you may need to include a flag to indicate that . This means that if we input the string Hiiiiiiiiiii, only Hi will be matched. I would appreciate any assistance in figuring out why this isn't working. SERVERNAMEPNWEBWW17_Baseline.blg I pasted it in the code box and it looked OK. Match the word viagra and some of the obfuscations that spammers use, such as: (\W|^)[\w.\-]{0,25}@(yahoo|hotmail|gmail)\.com(\W|$). Recovering from a blunder I made while emailing a professor. I need to process information dealing with IP address or folders containing information about an IP host. You write you want to return the word between the 1st and 2nd dash; but your regex also returns the word before the first dash and after the second, albeit into different capturing groups. It does end with ally, but before ally, there is an "_" so the pattern does not match. And this can be implemented in various ways, including And as a function argument (depends on which language you're doing the regex with). Using Length, Indexof and Substring Together What video game is Charlie playing in Poker Face S01E07? SERVERNAMEPNWEBWW11_Baseline20140220.blg If you are always specifically looking for 2 lowercase alpha characters preceeding a dash, then it is probably a good idea to be a bit more targeted with your regex. Allows the regex to match the phrase if it appears at theend of a line, with no characters after it. For example: "first-second-third-fourth" should return "second" (without all the quote marks), I accomplished this by creating: (.*?)-(.*?)-(. How to react to a students panic attack in an oral exam? While this feature can be useful in specific niche circumstances, its often confusing for new users. Since the behavior of the tool is different from what I would expect, also after your valuable input, I will contact the creator of that tool for further help. x or y or z), Matches a character other than x or y or z, Matches a character from within a specified range, Matches a digit from within a specified range, Word Boundary (usually a position between /w and /W). but this doesn't work when there are more than two chars, but maybe I wasn't clear that this was possible as well. Find all word and space characters up to and including a -. Check out my REGEX COOKBOOK article about the most commonly used (and most wanted) regex , Regular expressions (regex or regexp) are extremely useful in extracting information from any text by searching for one or more matches of a specific search pattern (i.e. Regular expression to match a line that doesn't contain a word. IT Programming. Extract text after dash: Type this formula: =REPLACE (A2,1,FIND ("-",A2),"") into a blank cell, then drag the fill handle to the range of cells that you want to contain this formula, and all the text after the dash has been extracted as follows: Tips: In above formulas, A2 is the cell you need to extract text from, you can change it as you need. Example: . Connect and share knowledge within a single location that is structured and easy to search. One of the regex quantifiers we touched on in the previous list was the + symbol. I have no idea what flavor of regex your software is using, or how it is implemented, The following list provides tools you can use to verify, create, and test regex expressions.