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  1. #include <iostream>
  2. #include <string>
  3. #include <regex>
  4.  
  5. int main()
  6. {
  7.     std::string input = "+10.7% Is My String +5 And Some Extra Stuff Here";
  8.     std::regex rx("\\+([0-9]+)\\.([0-9]+)% Is My String \\+([0-9]+) And Some Extra Stuff Here");
  9.  
  10.     std::smatch match;
  11.  
  12.     if (std::regex_match(input, match, rx))
  13.     {
  14.         for (std::size_t i = 0; i < match.size(); ++i)
  15.         {
  16.             std::ssub_match sub_match = match[i];
  17.             std::string num = sub_match.str();
  18.             std::cout << " submatch " << i << ": " << num << std::endl;
  19.             std::cout << " match str " << i << ": " << match[i].str() << std::endl;
  20.         }   
  21.     }
  22. }
Success #stdin #stdout 0.01s 5284KB
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stdin
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Standard input is empty
stdout
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 submatch 0: +10.7% Is My String +5 And Some Extra Stuff Here
 match str 0: +10.7% Is My String +5 And Some Extra Stuff Here
 submatch 1: 10
 match str 1: 10
 submatch 2: 7
 match str 2: 7
 submatch 3: 5
 match str 3: 5
https://ideone.com/1TExrP
language:
C++14 (gcc 8.3)
created:
7 days ago
visibility:
public

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