src/trim.h

   1 // Found at:
   2 // http://stackoverflow.com/questions/216823/whats-the-best-way-to-trim-stdstring
   3
   4 // Note that these functions trim the same arguments passed in, and do not
   5 // make copies.
   6
   7 #ifndef __BARRY_TRIM_H__
   8 #define __BARRY_TRIM_H__
   9
  10 #include <algorithm>
  11 #include <functional>
  12 #include <locale>
  13
  14 namespace Barry { namespace Inplace {
  15
  16 // trim from start
  17 static inline std::string &ltrim(std::string &s) {
  18         s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
  19         return s;
  20 }
  21
  22 // trim from end
  23 static inline std::string &rtrim(std::string &s) {
  24         s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
  25         return s;
  26 }
  27
  28 // trim from both ends
  29 static inline std::string &trim(std::string &s) {
  30         return ltrim(rtrim(s));
  31 }
  32
  33 }} // namespace Barry::Inplace
  34
  35 #endif
  36