http://www.bing.com:80/search?q=Regex+Example+TextSearch resultshttp://www.bing.com:80/s/a/rsslogo.gifhttp://www.bing.com:80/search?q=Regex+Example+TextCopyright © 2026 Microsoft. All rights reserved. These XML results may not be used, reproduced or transmitted in any manner or for any purpose other than rendering Bing results within an RSS aggregator for your personal, non-commercial use. Any other use of these results requires express written permission from Microsoft Corporation. By accessing this web page or using these results in any manner whatsoever, you agree to be bound by the foregoing restrictions.https://stackoverflow.com/questions/12666768/how-dot-star-worksIn Regex, . refers to any character, be it a number, an aplhabet character, or any other special character. * means zero or more times.Sat, 11 Apr 2026 03:26:00 GMThttps://stackoverflow.com/questions/1570896/what-does-mean-in-a-regular-expressionMay I know what ?= means in a regular expression? For example, what is its significance in this expression: (?=.*\\d).Wed, 08 Apr 2026 06:00:00 GMThttps://stackoverflow.com/questions/16944357/carets-in-regular-expressionsSpecifically when does ^ mean "match start" and when does it mean "not the following" in regular expressions? From the Wikipedia article and other references, I've concluded it means the former a...Sat, 11 Apr 2026 12:09:00 GMThttps://stackoverflow.com/questions/469913/regular-expressions-is-there-an-and-operatorIn regex in general, ^ is negation only at the beginning of a character class. Unless CMake is doing something really funky (to the point where calling their pattern matching language "regex" could be regarded as misleading or incorrect) I'm guessing the fact that it worked for you was an isolated accident.Fri, 10 Apr 2026 05:00:00 GMThttps://stackoverflow.com/questions/8327705/what-are-and-in-regular-expressionsIn case it is JS it indicates the start and end of the regex, like quotes for strings. stackoverflow.com/questions/15661969/…Fri, 10 Apr 2026 22:25:00 GMThttps://stackoverflow.com/questions/11530862/regex-notation-question-mark-and-colon-notationThe regex compiles fine, and there are already JUnit tests that show how it works. It's just that I'm a bit confused about why the first question mark and colon are there.Sat, 11 Apr 2026 09:03:00 GMThttps://stackoverflow.com/questions/6711971/regular-expressions-match-anythingNormally the dot matches any character except newlines. So if .* isn't working, set the "dot matches newlines, too" option (or use (?s).*). If you're using JavaScript, which doesn't have a "dotall" option, try [\s\S]*. This means "match any number of characters that are either whitespace or non-whitespace" - effectively "match any string". Another option that only works for JavaScript (and is ...Sat, 11 Apr 2026 09:03:00 GMThttps://stackoverflow.com/questions/2013124/matching-up-to-the-first-occurrence-of-a-character-with-a-regular-expressionThis should work in most regex dialects. Notes: The pattern will match everything up to the first semicolon, but excluding the semicolon. Also, the pattern will match the whole line if there is no semicolon. If you want the semicolon included in the match, add a semicolon at the end of the pattern.Fri, 10 Apr 2026 19:05:00 GMThttps://stackoverflow.com/questions/19715303/regex-that-accepts-only-numbers-0-9-and-no-charactersBy putting ^ at the beginning of your regex and $ at the end, you ensure that no other characters are allowed before or after your regex. For example, the regex [0-9] matches the strings "9" as well as "A9B", but the regex ^[0-9]$ only matches "9".Fri, 10 Apr 2026 19:41:00 GMThttps://stackoverflow.com/questions/3075130/what-is-the-difference-between-and-regular-expressionsRepetition in regex by default is greedy: they try to match as many reps as possible, and when this doesn't work and they have to backtrack, they try to match one fewer rep at a time, until a match of the whole pattern is found. As a result, when a match finally happens, a greedy repetition would match as many reps as possible.Thu, 09 Apr 2026 13:44:00 GMT