ceph/src/boost/libs/algorithm/string/example/predicate_example.cpp

   1 //  Boost string_algo library example file  ---------------------------------//
   2
   3 //  Copyright Pavol Droba 2002-2003. Use, modification and
   4 //  distribution is subject to the Boost Software License, Version
   5 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
   6 //  http://www.boost.org/LICENSE_1_0.txt)
   7
   8 //  See http://www.boost.org for updates, documentation, and revision history.
   9
  10 #include <string>
  11 #include <iostream>
  12 #include <functional>
  13 #include <boost/algorithm/string/predicate.hpp>
  14 #include <boost/algorithm/string/classification.hpp>
  15 #include <boost/bind.hpp>
  16
  17
  18 using namespace std;
  19 using namespace boost;
  20
  21 int main()
  22 {
  23     cout << "* Predicate Example *" << endl << endl;
  24
  25     string str1("123xxx321");
  26     string str2("abc");
  27
  28     // Check if str1 starts with '123'
  29     cout << "str1 starts with \"123\": " <<
  30         (starts_with( str1, string("123") )?"true":"false") << endl;
  31
  32     // Check if str1 ends with '123'
  33     cout << "str1 ends with \"123\": " <<
  34         (ends_with( str1, string("123") )?"true":"false") << endl;
  35
  36     // Check if str1 contains 'xxx'
  37     cout << "str1 contains \"xxx\": " <<
  38         (contains( str1, string("xxx") )?"true":"false") << endl;
  39
  40
  41     // Check if str2 equals to 'abc'
  42     cout << "str2 equals \"abc\": " <<
  43         (equals( str2, string("abc") )?"true":"false") << endl;
  44
  45
  46     // Classification functors and all predicate
  47     if ( all(";.,", is_punct() ) )
  48     {
  49         cout << "\";.,\" are all punctuation characters" << endl;
  50     }
  51
  52     // Classification predicates can be combined
  53     if ( all("abcxxx", is_any_of("xabc") && !is_space() ) )
  54     {
  55         cout << "true" << endl;
  56     }
  57
  58     cout << endl;
  59
  60     return 0;
  61 }