/* Copyright (C) 2001-2006 artofcode LLC.
   All Rights Reserved.
  
  This file is part of GNU ghostscript

  GNU ghostscript is free software; you can redistribute it and/or
  modify it under the terms of the version 2 of the GNU General Public
  License as published by the Free Software Foundation.

  GNU ghostscript is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

  You should have received a copy of the GNU General Public License along with
  ghostscript; see the file COPYING. If not, write to the Free Software Foundation,
  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

*/

/* $Id: gp_unifn.c,v 1.7 2007/08/01 14:25:59 jemarch Exp $ */
/* Unix-like file name syntax platform routines for Ghostscript */
#include "gx.h"
#include "gp.h"
#include "gpmisc.h"
#include "gsutil.h"

/* Define the character used for separating file names in a list. */
const char gp_file_name_list_separator = ':';

/* Define the string to be concatenated with the file mode */
/* for opening files without end-of-line conversion. */
const char gp_fmode_binary_suffix[] = "";

/* Define the file modes for binary reading or writing. */
const char gp_fmode_rb[] = "r";
const char gp_fmode_wb[] = "w";

/* -------------- Helpers for gp_file_name_combine_generic ------------- */

uint gp_file_name_root(const char *fname, uint len)
{   if (len > 0 && fname[0] == '/')
	return 1;
    return 0;
}

uint gs_file_name_check_separator(const char *fname, int len, const char *item)
{   if (len > 0) {
	if (fname[0] == '/')
	    return 1;
    } else if (len < 0) {
	if (fname[-1] == '/')
	    return 1;
    }
    return 0;
}

bool gp_file_name_is_parent(const char *fname, uint len)
{   return len == 2 && fname[0] == '.' && fname[1] == '.';
}

bool gp_file_name_is_current(const char *fname, uint len)
{   return len == 1 && fname[0] == '.';
}

const char *gp_file_name_separator(void)
{   return "/";
}

const char *gp_file_name_directory_separator(void)
{   return "/";
}

const char *gp_file_name_parent(void)
{   return "..";
}

const char *gp_file_name_current(void)
{   return ".";
}

bool gp_file_name_is_partent_allowed(void)
{   return true;
}

bool gp_file_name_is_empty_item_meanful(void)
{   return false;
}

gp_file_name_combine_result
gp_file_name_combine(const char *prefix, uint plen, const char *fname, uint flen, 
		    bool no_sibling, char *buffer, uint *blen)
{
    return gp_file_name_combine_generic(prefix, plen, 
	    fname, flen, no_sibling, buffer, blen);
}
