CODEWITHSUNDEEP
regexpattern-matchingmatch
GabryRome
GabryRome

Reputation: 95

regular expression match _ underscore

I have a string like this :

002_part1_part2_______________by_test

and I would like to stop the match at the second underscore character, like this :

002_part1_part2_

How can I do that with a Regular expression ?

Thanks

Upvotes: 1

Views: 24478

Answers (2)

Pedro Lobito
Pedro Lobito

Reputation: 99071

You can use:

.*\d_

EXPLANATION:

Match any single character that is NOT a line break character (line feed) «.*»
   Between zero and unlimited times, as many times as possible, giving back as needed (greedy) «*»
Match a single character that is a “digit” (any decimal number in any Unicode script) «\d»
Match the character “_” literally «_»

https://regex101.com/r/uX0qD5/1

Upvotes: 0

Avinash Raj
Avinash Raj

Reputation: 174874

Create a pattern to match any character but not of an _ zero or more times followed by an underscore symbol. Put that pattern inside a capturing or non-capturing group and make it to repeat exactly 3 times by adding range quantifier {3} next to that group.

^(?:[^_]*_){3}

DEMO

Upvotes: 1

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