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  1. #include <iostream>
  2. #include <string>
  3. #include <algorithm>
  4. #include <sstream>
  5. #include <vector>
  6. #include <locale>
  7. #include <cassert>
  8.  
  9. template <typename TContainer,typename TString>
  10. void tokenize(TString input,TContainer& res)
  11. {
  12.  
  13.     if (input.length()<2) {
  14.         res.push_back(input);
  15.         return;
  16.     }
  17.  
  18.     typename TString::const_iterator pos=input.begin();
  19.     bool space_state=std::isspace(input[0],std::locale());
  20.     for (typename TString::const_iterator it=input.begin(); it!=input.end();
  21.             ++it) {
  22.         bool is_space=std::isspace(*it,std::locale());
  23.         if (is_space!=space_state) {
  24.             res.push_back(TString(pos,it));
  25.             pos=it;
  26.             space_state=is_space;
  27.         }
  28.     }
  29.  
  30.     //the rest
  31.     if (pos!=input.end()) {
  32.         res.push_back(TString(pos,(typename TString::const_iterator)input.end()));
  33.     }
  34.  
  35. }
  36.  
  37.  
  38. int main()
  39. {
  40.     std::string test("hi   how are you"),reference("ih   woh era uoy");
  41.  
  42.     std::vector<std::string> tokens;
  43.     tokenize(test,tokens);
  44.  
  45.     for (auto& token : tokens)
  46.         std::reverse(token.begin(),token.end());
  47.  
  48.     std::stringstream buf;
  49.     for (auto token : tokens)
  50.         buf<<token;
  51.  
  52.     std::string res=buf.str();
  53.     assert(res==reference);
  54.  
  55.     std::cout<<res<<std::endl;
  56. }
Success #stdin #stdout 0s 3032KB
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Standard input is empty
stdout
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ih   woh era uoy
https://ideone.com/f5vciW
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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