ceph/src/boost/libs/regex/example/snippets/regex_split_example_1.cpp

   1 /*
   2  *
   3  * Copyright (c) 1998-2002
   4  * John Maddock
   5  *
   6  * Use, modification and distribution are subject to the
   7  * Boost Software License, Version 1.0. (See accompanying file
   8  * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9  *
  10  */
  11
  12  /*
  13   *   LOCATION:    see http://www.boost.org for most recent version.
  14   *   FILE         regex_split_example_1.cpp
  15   *   VERSION      see <boost/version.hpp>
  16   *   DESCRIPTION: regex_split example: split a string into tokens.
  17   */
  18
  19
  20 #include <boost/regex.hpp>
  21 #include <list>
  22
  23
  24 unsigned tokenise(std::list<std::string>& l, std::string& s)
  25 {
  26    return boost::regex_split(std::back_inserter(l), s);
  27 }
  28
  29 #include <iostream>
  30 using namespace std;
  31
  32
  33 #if defined(BOOST_MSVC) || (defined(__BORLANDC__) && (__BORLANDC__ == 0x550))
  34 //
  35 // problem with std::getline under MSVC6sp3
  36 istream& getline(istream& is, std::string& s)
  37 {
  38    s.erase();
  39    char c = static_cast<char>(is.get());
  40    while(c != '\n')
  41    {
  42       s.append(1, c);
  43       c = static_cast<char>(is.get());
  44    }
  45    return is;
  46 }
  47 #endif
  48
  49
  50 int main(int argc, const char*[])
  51 {
  52    string s;
  53    list<string> l;
  54    do{
  55       if(argc == 1)
  56       {
  57          cout << "Enter text to split (or \"quit\" to exit): ";
  58          getline(cin, s);
  59          if(s == "quit") break;
  60       }
  61       else
  62          s = "This is a string of tokens";
  63       unsigned result = tokenise(l, s);
  64       cout << result << " tokens found" << endl;
  65       cout << "The remaining text is: \"" << s << "\"" << endl;
  66       while(l.size())
  67       {
  68          s = *(l.begin());
  69          l.pop_front();
  70          cout << s << endl;
  71       }
  72    }while(argc == 1);
  73    return 0;
  74 }
  75
  76