Using Boost's string trim functions - C++ boost

C++ examples for boost:string operation

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Description

Using Boost's string trim functions 

#include <iostream>
#include <string>
#include <boost/algorithm/string.hpp>

using namespace std;
using namespace boost;

int main() {

   string s1 = "      leading spaces?";

   trim_left(s1); // Trim the original
   string s2 = trim_left_copy(s1); // Trim, but leave original intact

   cout << "s1 = " << s1 << endl;
   cout << "s2 = " << s2 << endl;

   s1 = "YYYYtest testYYYXXX testXXX";

   s2 = trim_copy_if(s1, is_any_of("XY")); // Use a predicate to

   trim_if(s1, is_any_of("XY"));

   cout << "s1 = " << s1 << endl;
   cout << "s2 = " << s2 << endl;

   s1 = "1234 numbers 9876";
   s2 = trim_copy_if(s1, is_digit());

   cout << "s1 = " << s1 << endl;
   cout << "s2 = " << s2 << endl;

   // Nest calls to trim functions if you like
   s1 = "    ****Trim!**     ";
   s2 = trim_copy_if(trim_copy(s1), is_any_of("*"));

   cout << "s1 = " << s1 << endl;
   cout << "s2 = " << s2 << endl;
}

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