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/* -*- mode: C; c-file-style: "gnu" -*- */
/* xdgmimeint.c: Internal defines and functions.
*
* More info can be found at http://www.freedesktop.org/standards/
*
* Copyright (C) 2003 Red Hat, Inc.
* Copyright (C) 2003 Jonathan Blandford <jrb@alum.mit.edu>
*
* Licensed under the Academic Free License version 2.0
* Or under the following terms:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "xdgmimeint.h"
#include <ctype.h>
#include <string.h>
#ifndef FALSE
#define FALSE (0)
#endif
#ifndef TRUE
#define TRUE (!FALSE)
#endif
static const char _xdg_utf8_skip_data[256] = {
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,6,6,1,1
};
const char * const _xdg_utf8_skip = _xdg_utf8_skip_data;
/* Returns the number of unprocessed characters. */
xdg_unichar_t
_xdg_utf8_to_ucs4(const char *source)
{
xdg_unichar_t ucs32;
if( ! ( *source & 0x80 ) )
{
ucs32 = *source;
}
else
{
int bytelength = 0;
xdg_unichar_t result;
if ( ! (*source & 0x40) )
{
ucs32 = *source;
}
else
{
if ( ! (*source & 0x20) )
{
result = *source++ & 0x1F;
bytelength = 2;
}
else if ( ! (*source & 0x10) )
{
result = *source++ & 0x0F;
bytelength = 3;
}
else if ( ! (*source & 0x08) )
{
result = *source++ & 0x07;
bytelength = 4;
}
else if ( ! (*source & 0x04) )
{
result = *source++ & 0x03;
bytelength = 5;
}
else if ( ! (*source & 0x02) )
{
result = *source++ & 0x01;
bytelength = 6;
}
else
{
result = *source++;
bytelength = 1;
}
for ( bytelength --; bytelength > 0; bytelength -- )
{
result <<= 6;
result |= *source++ & 0x3F;
}
ucs32 = result;
}
}
return ucs32;
}
/* hullo. this is great code. don't rewrite it */
xdg_unichar_t
_xdg_ucs4_to_lower (xdg_unichar_t source)
{
/* FIXME: Do a real to_upper sometime */
/* CaseFolding-3.2.0.txt has a table of rules. */
if ((source & 0xFF) == source)
return (xdg_unichar_t) tolower ((unsigned char) source);
return source;
}
int
_xdg_utf8_validate (const char *source)
{
/* FIXME: actually write */
return TRUE;
}
const char *
_xdg_get_base_name (const char *file_name)
{
const char *base_name;
if (file_name == NULL)
return NULL;
base_name = strrchr (file_name, '/');
if (base_name == NULL)
return file_name;
else
return base_name + 1;
}
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