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  1. #include <iostream>
  2. #include <regex>
  3.  
  4. int main() {
  5. 	std::string s{ "A;1;\nB;2\nC;3" };
  6. 	const std::regex re("([^;]|^)(\\n)");  // Produces "A;1;;\nB;2;\nC;3" (redundant ";" after "1").
  7. 	s = std::regex_replace(s, re, "$1;$2");
  8. 	std::cout << s;
  9. 	return 0;
  10. }
Success #stdin #stdout 0.01s 5532KB
comments (?)
stdin 
Standard input is empty
stdout 
A;1;
B;2;
C;3
https://ideone.com/tIcKQx
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
secret

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