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  1. #include <string>
  2. #include <iostream>
  3. #include <regex>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	std::regex r(R"((\$*[A-Z][A-Z\d_]*)\s*=\s*((?:(?![A-Z]\d+\.\d+|[A-Z][A-Z\d_]*\s*=).)*))");
  8. 	std::string s = "N100$VAR1=100+$Var2*30 + #29X=30.99Z=(#991+ ( 30*SIN(60) + $VAR32 ) / #32)";
  9. 	for(std::sregex_iterator i = std::sregex_iterator(s.begin(), s.end(), r);
  10.                              i != std::sregex_iterator();
  11.                              ++i)
  12.     {
  13.         std::smatch m = *i;
  14.         std::cout << "Match value: " << m.str()      << '\n';
  15.         std::cout << "    Capture: " << m[1].str()   << '\n';
  16.         std::cout << "    Capture: " << m[2].str()   << '\n';
  17.     }
  18. 	return 0;
  19. }
  20.  
Success #stdin #stdout 0s 3556KB
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Standard input is empty
stdout
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Match value: $VAR1=100+$Var2*30 + #29
    Capture: $VAR1
    Capture: 100+$Var2*30 + #29
Match value: X=30.99
    Capture: X
    Capture: 30.99
Match value: Z=(#991+ ( 30*SIN(60) + $VAR32 ) / #32)
    Capture: Z
    Capture: (#991+ ( 30*SIN(60) + $VAR32 ) / #32)
https://ideone.com/potjYp
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
secret

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