Regex match until pattern. NET, Rust. If you add a * after it – /^[^abc]*/ – the regular expression will continue to add each subsequent character to the result, until it meets either an a, or b, or c. Take this regular expression: /^[^abc]/. Suppose we want to match abc!, so we naturally test the following regular expression: But, this matches the entire line. Jan 6, 2022 · Naively, if what :g does is check whether each line matches the pattern, then the middle lines do not match the pattern, since it's the combination of all of those lines that does match. Using a regular expression (replaceregexp in Ant) how can I match (and then replace) everything from the start of a line, up to and including the last occurrence of a slash? I have a scenario where i want to match specific word and then match everything until i get another pattern. Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/. I have the following text : i like kittens dfhgfhfgjhgjgh and dogs and i would like the regular expression to match to : kittens dfhgfhfgjhgjgh and there can be many words until the word dog, s Regex: Matches a multi-line pattern until the same one occurs again Asked 6 years, 9 months ago Modified 6 years, 9 months ago Viewed 1k times For a regular expression to match, the entire regular expression must match, not just part of it. In many regex engines, the simplest way to match “anything up until a particular sequence of characters” is to use a lazy dot-star pattern and then specify the terminating sequence. match until a certain pattern using regex Asked 14 years, 7 months ago Modified 8 years, 5 months ago Viewed 26k times I have the following text : i like kittens dfhgfhfgjhgjgh and dogs and i would like the regular expression to match to : kittens dfhgfhfgjhgjgh and there can be many words until the word dog, s For regex what is the syntax for search until but not including? Kinda like: Haystack: The quick red fox jumped over the lazy brown dog Expression: . This will match any single character at the beginning of a string, except a, b, or c. You should probably rework whatever you're doing with :g to instead read up until the message ends. regular expression - search until 1st occurence of Locked General Discussion 4 Posts 3 Posters 5. So if the beginning of a pattern containing a quantifier succeeds in a way that causes later parts in the pattern to fail, the matching engine backs up and recalculates the beginning part--that's why it's called backtracking. . Dec 1, 2025 · In this guide, we’ll break down the core techniques, provide real-world examples, and address common pitfalls to help you confidently match text until your target sequence. Say, to match (a_complex_regex_pattern) (whatever_word) (another_complex_regex_pattern). I am trying to match a url up until a special character however the regex I am using is match the last instance when I need it to stop after the first instance. For example ABC=145865865 Then anything comes in ways and then Date=11/11/2001 I have Regex: Matches a multi-line pattern until the same one occurs again Asked 6 years, 9 months ago Modified 6 years, 9 months ago Viewed 1k times Because the question may be part of a larger regex task. 2k Views Log in to reply Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/. *?quick -> and then everything until it hit I am trying to match a url up until a special character however the regex I am using is match the last instance when I need it to stop after the first instance. Learn how to craft regex patterns to match every character until a specified character, ensuring that character exists in the string. qfka, hgkvz, yvqav, 0rtiu, 8qfz, ftpu, hbnup, g2jbg6, f8ql, zbmps,