text: /*
   * Copyright (C) 2009, 2010 Nick Johnson <nickbjohnson4224 at gmail.com>
   * 
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  
  #include <string.h>
  #include <natio.h>
  
  int path_prev(struct path *path) {
  	
  	if (!path->pos) {
  		return 1;
  	}
  
  	while (path->pos > path->str) {
  		if ((*(path->pos) != PATH_SEP) && (*(path->pos) != '\0')) {
  			break;
  		}
  		path->pos--;
  	}
  
  	while (path->pos > path->str) {
  		if (*(path->pos) == PATH_SEP) {
  			break;
  		}
  		path->pos--;
  	}
  
  	if (*(path->pos) == PATH_SEP) {
  		return 0;
  	}
  	else {
  		return 1;
  	}
  }
  