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/******************************************************************/
/* This file is part of the homework assignments for CSCI-427/527 */
/* at The College of William & Mary and authored by Pieter Peers. */
/* No part of this file, whether altered or in original form, can */
/* be distributed or used outside the context of CSCI-427/527     */
/* without consent of either the College of William & Mary or     */
/* Pieter Peers.                                                  */
/******************************************************************/
#include "util.h"


std::string getFilename(const std::string& path)
{
#ifdef _WIN32
  unsigned char pathSep = '\\';
#else
  unsigned char pathSep = '/';
#endif
  size_t start = path.find_last_of(pathSep);
  size_t end = path.find_last_of(".");
  if(start == std::string::npos) start = -1;
  if(end == std::string::npos) end = path.size();
  return path.substr(start+1, end-start-1);
}


std::string getExtension(const std::string& path)
{
  size_t lastidx = path.find_last_of("."); 
  if(lastidx == std::string::npos) return std::string();
  else return path.substr(lastidx+1, std::string::npos);
}


std::string getDirectory(const std::string& path)
{
#ifdef _WIN32
  unsigned char pathSep = '\\';
#else
  unsigned char pathSep = '/';
#endif
  size_t lastidx = path.find_last_of(pathSep);
  if(lastidx == std::string::npos) return std::string();
  return path.substr(0, lastidx+1);
}