basename.c

/*
** basename.c for 42sh
**
** Made by Seblu
** Login   <seblu@epita.fr>
**
** Started on  Thu Aug  3 05:29:46 2006 Seblu
** Last update Tue Nov 14 15:37:34 2006 seblu
*/

#include <string.h>
#include "function.h"

char		*basename(const char *path)
{
  size_t start = 0, end = 0, len;
  register size_t i;

  if ((len = strlen(path)) == 0)
    return strdup("");
  //search first char WITHOUT '/' start at end string
  for (i = len - 1; ; --i) {
    if (path[i] != '/') {
      end = i;
      break;
    }
    if (i == 0)
      break;
  }
  if (end == 0)
    return strdup("");
  //search first char '/' from end string
  for (i = end - 1; ; --i) {
    if (path[i] == '/') {
      start = i + 1;
      break;
    }
    if (i == 0)
      break;
  }
  return strndup(path + start, (start > end) ? 0 : end - start + 1);
}