1/*
2 * Copyright © 2018 Ebrahim Byagowi
3 *
4 * This is part of HarfBuzz, a text shaping library.
5 *
6 * Permission is hereby granted, without written agreement and without
7 * license or royalty fees, to use, copy, modify, and distribute this
8 * software and its documentation for any purpose, provided that the
9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
11 *
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
16 * DAMAGE.
17 *
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
23 */
24
25#ifndef HB_AAT_LTAG_TABLE_HH
26#define HB_AAT_LTAG_TABLE_HH
27
28#include "hb-aat-layout-common.hh"
29
30/*
31 * ltag -- Language Tag
32 * https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6ltag.html
33 */
34#define HB_AAT_TAG_ltag HB_TAG('l','t','a','g')
35
36
37namespace AAT {
38
39
40struct FTStringRange
41{
42 inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
43 {
44 TRACE_SANITIZE (this);
45 return_trace (c->check_struct (this) && (base+tag).sanitize (c, length));
46 }
47
48 protected:
49 OffsetTo<UnsizedArrayOf<HBUINT8> >
50 tag; /* Offset from the start of the table to
51 * the beginning of the string */
52 HBUINT16 length; /* String length (in bytes) */
53 public:
54 DEFINE_SIZE_STATIC (4);
55};
56
57struct ltag
58{
59 static const hb_tag_t tableTag = HB_AAT_TAG_ltag;
60
61 inline bool sanitize (hb_sanitize_context_t *c) const
62 {
63 TRACE_SANITIZE (this);
64 return_trace (likely (c->check_struct (this) && tagRanges.sanitize (c, this)));
65 }
66
67 protected:
68 HBUINT32 version; /* Table version; currently 1 */
69 HBUINT32 flags; /* Table flags; currently none defined */
70 LArrayOf<FTStringRange>
71 tagRanges; /* Range for each tag's string */
72 public:
73 DEFINE_SIZE_ARRAY (12, tagRanges);
74};
75
76} /* namespace AAT */
77
78
79#endif /* HB_AAT_LTAG_TABLE_HH */
80