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comparison mupdf-source/thirdparty/harfbuzz/src/hb-string-array.hh @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /*
2 * Copyright © 2017 Google, Inc.
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 * Google Author(s): Behdad Esfahbod
25 */
26
27 #ifndef HB_STRING_ARRAY_HH
28 #if 0 /* Make checks happy. */
29 #define HB_STRING_ARRAY_HH
30 #endif
31
32 #include "hb.hh"
33
34 /* Based on Bruno Haible's code in Appendix B of Ulrich Drepper's dsohowto.pdf:
35 * https://software.intel.com/sites/default/files/m/a/1/e/dsohowto.pdf */
36
37 #define HB_STRING_ARRAY_TYPE_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgstr_t)
38 #define HB_STRING_ARRAY_POOL_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgstr)
39 #define HB_STRING_ARRAY_OFFS_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgidx)
40 #define HB_STRING_ARRAY_LENG_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _length)
41
42 static const union HB_STRING_ARRAY_TYPE_NAME {
43 struct {
44 /* I like to avoid storing the nul-termination byte since we don't need it,
45 * but C++ does not allow that.
46 * https://stackoverflow.com/q/28433862
47 */
48 #define _S(s) char HB_PASTE (str, __LINE__)[sizeof (s)];
49 #include HB_STRING_ARRAY_LIST
50 #undef _S
51 } st;
52 char str[HB_VAR_ARRAY];
53 }
54 HB_STRING_ARRAY_POOL_NAME =
55 {
56 {
57 #define _S(s) s,
58 #include HB_STRING_ARRAY_LIST
59 #undef _S
60 }
61 };
62 static const unsigned int HB_STRING_ARRAY_OFFS_NAME[] =
63 {
64 #define _S(s) offsetof (union HB_STRING_ARRAY_TYPE_NAME, st.HB_PASTE(str, __LINE__)),
65 #include HB_STRING_ARRAY_LIST
66 #undef _S
67 sizeof (HB_STRING_ARRAY_TYPE_NAME)
68 };
69
70 static const unsigned int HB_STRING_ARRAY_LENG_NAME = ARRAY_LENGTH_CONST (HB_STRING_ARRAY_OFFS_NAME) - 1;
71
72 static inline hb_bytes_t
73 HB_STRING_ARRAY_NAME (unsigned int i)
74 {
75 assert (i < ARRAY_LENGTH (HB_STRING_ARRAY_OFFS_NAME) - 1);
76 return hb_bytes_t (HB_STRING_ARRAY_POOL_NAME.str + HB_STRING_ARRAY_OFFS_NAME[i],
77 HB_STRING_ARRAY_OFFS_NAME[i + 1] - HB_STRING_ARRAY_OFFS_NAME[i] - 1);
78 }
79
80 #undef HB_STRING_ARRAY_TYPE_NAME
81 #undef HB_STRING_ARRAY_POOL_NAME
82 #undef HB_STRING_ARRAY_OFFS_NAME
83 #undef HB_STRING_ARRAY_LENG_NAME
84
85 #endif /* HB_STRING_ARRAY_HH */