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  1. #include <iostream>
  2. #include <sstream>
  3. #include <string>
  4. #include <vector>
  5. //#include <fstream>
  6.  
  7. using namespace std;
  8.  
  9. struct tagattribute {
  10.     string name;
  11.     string value;
  12. };
  13.  
  14. istream& operator>>(istream &in, tagattribute &attr)
  15. {
  16.     getline(in, attr.name, '=');
  17.     in.ignore();
  18.     getline(in, attr.value, '"');
  19.     return in;
  20. }
  21.  
  22. struct tagline {
  23.     string tag;
  24.     vector<tagattribute> attributes;
  25. };
  26.  
  27. istream& operator>>(istream &in, tagline &t)
  28. {
  29.     tagattribute attr;
  30.  
  31.     in >> std::ws;
  32.  
  33.     char ch = in.get();
  34.     if (ch != '<')
  35.     {
  36.         in.setstate(ios_base::failbit);
  37.         return in;
  38.     }
  39.  
  40.     if (!(in >> t.tag))
  41.         return in;
  42.  
  43.     do
  44.     {
  45.         in >> std::ws;
  46.  
  47.         ch = in.peek();
  48.         if (ch == '>')
  49.         {
  50.             in.ignore();
  51.             break;
  52.         }
  53.  
  54.         if (!(in >> attr))
  55.             break;
  56.  
  57.         t.attributes.push_back(attr);
  58.     }
  59.     while (true);
  60.  
  61.     return in;
  62. }
  63.  
  64. int main() {
  65.     vector<tagline> information;
  66.     string line;
  67.  
  68.     //ifstream readFile("file.txt");
  69.     istream &readFile = cin;
  70.  
  71.     while (getline(readFile, line)) {
  72.         istringstream in(line);
  73.         tagline t;
  74.  
  75.         if (in >> t)
  76.             information.push_back(t);
  77.     }
  78.  
  79.     vector<tagline>::iterator it = information.begin();
  80.     for(; it != information.end(); ++it) {
  81.         cout << "Tag: " << it->tag << "\n";
  82.  
  83.         vector<tagattribute>::iterator it2 = it->attributes.begin();
  84.         for(; it2 != it->attributes.end(); ++it2) {
  85.             cout << "name: " << it2->name << "\n"
  86.             << "value: " << it2->value << "\n";
  87.         }
  88.  
  89.         cout << "\n";
  90.     }
  91.  
  92.     return 0;
  93. }
Success #stdin #stdout 0s 4356KB
comments (?)
stdin 
<tag1 attr1="value1" attr2="value2" >
<tag2 attr1="value1" attr2="value2" >
stdout 
Tag: tag1
name: attr1
value: value1
name: attr2
value: value2

Tag: tag2
name: attr1
value: value1
name: attr2
value: value2
https://ideone.com/9pLxpj
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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