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