I am having a hard time trying to match multiple words completely using regex, Google is looking to dismantle the Spotify-Apple "duopoly" in music distribution, overhauling its music service this week in the fourth attempt at convincing YouTube's billions of users to pay. Which language's style guidelines should be used when writing code that is supposed to be called from another language? So, the regex would trigger on any of these: rocket RoCKEt hi Rocket This is a rocket. To learn more, see our tips on writing great answers. If you want to match 3 simply write / 3 / or if you want to match 99 write / 99 / and it will be a successful match. He posted a much better solution, namely. aka. 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. The \ before each period escapes the periodthat is, it indicates that the period isn't a regex special character itself. It would be good to add an optional modifier. The lookahead approach is nice for matching strings that contain these substrings regardless of order. It will ignore case differences. Regex to match string containing two words in any order In Example 2, \d matches any digit from 0 to 9 after the last period, and {1,3} indicates that the digits 1 to 3 can appear after that last period. This is actually pretty close, I get a second array param for the last match: @ehime This is a working solution and to get only a single element you need to use a non-capturing group like this: @Sniffer I had to change it back, as it changes the nature of the pattern. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I think the most important thing (which i found out today) is that it is doing the checks in .Net , so i am not sure if all the answers below apply , i have tried all and sadly .net does not pick up any as case insensitive, Ehh, whether it's case sensitive or not should not be dependent on regex. (Ep. What were the most popular text editors for MS-DOS in the 1980s? Should I re-do this cinched PEX connection? From docs.python: re: A regular expression (or RE) specifies a set of strings that matches it; the functions in this module let you check if a particular string matches a given regular expression. "Signpost" puzzle from Tatham's collection. What does 'They're at four. To learn more, see our tips on writing great answers. The regex should match ROCKET in upper or lower cases, and with or without punctuation, but not when part of another word. UPDATE: you want to match: More complex examples of matching similar words are @ehime The above pattern is flawed as it only returns the last element matching the capture group. What does 'They're at four. How can I prevent this from happening? (and sorry for my english). grep -e 'word1. The best answers are voted up and rise to the top, Not the answer you're looking for? Regex, also commonly called regular expression, is a combination of characters that define a particular search pattern. Is there such a thing as aspiration harmony? Does the order of validations and MAC with clear text matter? RegEx can be used to check if a string contains the specified search pattern. The answer by Jerry is probably fit to your needs. Connect and share knowledge within a single location that is structured and easy to search. What's the cheapest way to buy out a sibling's share of our parents house if I have no cash and want to pay less than the appraised value? The following examples illustrate the use and construction of simple regular expressions. *) {2,}. They ought to be, but minor implementation differences exist. 566), Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. Professional email, online storage, shared calendars, video meetings and more. :\d {3}-) {2}\d {4}$ The phone number "555-555-5555" will match with the regex above, but "555-abc-5555" will not This regex may look complicated, but two things to keep in mind: Why don't we use the 7805 for car phone chargers?