.. _program_listing_file_Utilities_StringTools.h:

Program Listing for File StringTools.h
======================================

|exhale_lsh| :ref:`Return to documentation for file <file_Utilities_StringTools.h>` (``Utilities/StringTools.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #ifndef __StringTools_h__
   #define __StringTools_h__
   
   #include <vector>
   #include <iostream>
   #include <algorithm>
   #include <string>
   #include <sstream>
   
   namespace Utilities
   {
       class StringTools
       {
       public:
   
           static void tokenize(const std::string& str, std::vector<std::string>& tokens, const std::string& delimiters = " ")
           {
               std::string::size_type lastPos = str.find_first_not_of(delimiters, 0);
               std::string::size_type pos = str.find_first_of(delimiters, lastPos);
   
               while (std::string::npos != pos || std::string::npos != lastPos)
               {
                   tokens.push_back(str.substr(lastPos, pos - lastPos));
                   lastPos = str.find_first_not_of(delimiters, pos);
                   pos = str.find_first_of(delimiters, lastPos);
               }
           }
   
           template <typename T>
           static std::string to_string_with_precision(const T val, const int n = 6)
           {
               std::ostringstream ostr;
               ostr.precision(n);
               ostr << std::fixed << val;
               return ostr.str();
           }
   
           template<typename T>
           static std::string real2String(const T r)
           {
               std::string str = to_string_with_precision(r,20);
               str.erase(str.find_last_not_of('0') + 1, std::string::npos);
               str.erase(str.find_last_not_of('.') + 1, std::string::npos);
               return str;
           }
   
           static std::string to_upper(const std::string& str)
           {
               std::string res = str;
               std::transform(res.begin(), res.end(), res.begin(), ::toupper);
               return res;
           }
       };
   }
   
   #endif