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  1. #include <iostream>
  2. #include <string>
  3. #include <algorithm>
  4.  
  5. std::string Rename(const std::string& name){
  6. 	std::string newName(name);
  7. 	static const std::string oldSuffix = "nef";
  8. 	static const std::string newSuffix = "bmp";
  9. 	auto dotPos = newName.rfind('.');
  10. 	if (dotPos == newName.size() - oldSuffix.size() - 1){
  11. 		auto suffix = newName.substr(dotPos + 1);
  12. 		std::transform(suffix.begin(), suffix.end(), suffix.begin(), ::tolower);
  13. 		if (suffix == oldSuffix)
  14. 			newName.replace(dotPos + 1, std::string::npos, newSuffix);
  15. 	}
  16. 	return newName;
  17. }
  18.  
  19. int main() {
  20. 	std::cout << Rename("abc.net.nef") << std::endl;
  21. 	std::cout << Rename("abc.nEF") << std::endl;
  22. 	std::cout << Rename("def.not-nef") << std::endl;
  23. 	return 0;
  24. }
Success #stdin #stdout 0s 3432KB
comments (?)
stdin 
Standard input is empty
stdout 
abc.net.bmp
abc.bmp
def.not-nef
https://ideone.com/D09NVL
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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