CODEWITHSUNDEEP
c++regexboost
Amit Pandey
Amit Pandey

Reputation: 25

Boost C regex - how to return all matches

I have a string "SolutionAN ANANANA SolutionBNabcabcSolutionX" and I want to return all string which start with Solution and end just before sub string Solution.

While using boost::regex I am unable to make regular expression for it.

I want to get SolutionAN ANANANA, SolutionBNababc and SolutionX as output. I am new to regex in boost, any help will be appreciated.

Upvotes: 0

Views: 170

Answers (1)

Anirudha
Anirudha

Reputation: 32797

You can use this regex

(?s)Solution.*?(?=Solution|$)

.*? would match 0 to many characters lazily i.e it eats as less as possible. Without ? it would become greedy and eat as much as possible.

x(?=yz) is a lookahead which matches x only if it is followed by yz

$ is the end of string

. by default won't match newline character..You should use (?s) modifier within regex or use mod_s option which causes . to match newline character

Upvotes: 1

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