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1c177ce0ab
This detects zero-sized files to return the special-case "application/x-zerosize" mime-type, as well as trying to differentiate unknown file types based on their first 128 bytes of data, so that text editors can automatically handle unknown text files. Based on: https://cgit.freedesktop.org/xdg/xdgmime/commit/?id=5181175d5fdaa3832b0fd094cda0120b1fe92af6 https://cgit.freedesktop.org/xdg/xdgmime/commit/?id=9c5802b8da56187c5c6abaf70042d14b12d832a9 https://bugzilla.gnome.org/show_bug.cgi?id=795544
77 lines
2.9 KiB
C
77 lines
2.9 KiB
C
/* -*- mode: C; c-file-style: "gnu" -*- */
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/* xdgmimeint.h: 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 2.1 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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __XDG_MIME_INT_H__
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#define __XDG_MIME_INT_H__
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#include "xdgmime.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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/* FIXME: Needs to be configure check */
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typedef unsigned int xdg_unichar_t;
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typedef unsigned char xdg_uchar8_t;
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typedef unsigned short xdg_uint16_t;
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typedef unsigned int xdg_uint32_t;
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#ifdef XDG_PREFIX
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#define _xdg_utf8_skip XDG_RESERVED_ENTRY(utf8_skip)
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#define _xdg_utf8_to_ucs4 XDG_RESERVED_ENTRY(utf8_to_ucs4)
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#define _xdg_ucs4_to_lower XDG_RESERVED_ENTRY(ucs4_to_lower)
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#define _xdg_utf8_validate XDG_RESERVED_ENTRY(utf8_validate)
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#define _xdg_get_base_name XDG_RESERVED_ENTRY(get_base_name)
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#define _xdg_convert_to_ucs4 XDG_RESERVED_ENTRY(convert_to_ucs4)
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#define _xdg_reverse_ucs4 XDG_RESERVED_ENTRY(reverse_ucs4)
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#endif
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#define SWAP_BE16_TO_LE16(val) (xdg_uint16_t)(((xdg_uint16_t)(val) << 8)|((xdg_uint16_t)(val) >> 8))
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#define SWAP_BE32_TO_LE32(val) (xdg_uint32_t)((((xdg_uint32_t)(val) & 0xFF000000U) >> 24) | \
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(((xdg_uint32_t)(val) & 0x00FF0000U) >> 8) | \
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(((xdg_uint32_t)(val) & 0x0000FF00U) << 8) | \
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(((xdg_uint32_t)(val) & 0x000000FFU) << 24))
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/* UTF-8 utils
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*/
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extern const char *const _xdg_utf8_skip;
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#define _xdg_utf8_next_char(p) (char *)((p) + _xdg_utf8_skip[*(unsigned char *)(p)])
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#define _xdg_utf8_char_size(p) (int) (_xdg_utf8_skip[*(unsigned char *)(p)])
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xdg_unichar_t _xdg_utf8_to_ucs4 (const char *source);
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xdg_unichar_t _xdg_ucs4_to_lower (xdg_unichar_t source);
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int _xdg_utf8_validate (const char *source);
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xdg_unichar_t *_xdg_convert_to_ucs4 (const char *source, int *len);
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void _xdg_reverse_ucs4 (xdg_unichar_t *source, int len);
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const char *_xdg_get_base_name (const char *file_name);
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const char *_xdg_binary_or_text_fallback(const void *data, size_t len);
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#endif /* __XDG_MIME_INT_H__ */
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