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annotate 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 /*
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2 * Copyright © 2017 Google, Inc.
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3 *
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4 * This is part of HarfBuzz, a text shaping library.
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5 *
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6 * Permission is hereby granted, without written agreement and without
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7 * license or royalty fees, to use, copy, modify, and distribute this
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8 * software and its documentation for any purpose, provided that the
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9 * above copyright notice and the following two paragraphs appear in
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10 * all copies of this software.
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11 *
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12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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16 * DAMAGE.
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17 *
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18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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23 *
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24 * Google Author(s): Behdad Esfahbod
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25 */
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26
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27 #ifndef HB_STRING_ARRAY_HH
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28 #if 0 /* Make checks happy. */
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29 #define HB_STRING_ARRAY_HH
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30 #endif
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31
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32 #include "hb.hh"
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33
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34 /* Based on Bruno Haible's code in Appendix B of Ulrich Drepper's dsohowto.pdf:
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35 * https://software.intel.com/sites/default/files/m/a/1/e/dsohowto.pdf */
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36
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37 #define HB_STRING_ARRAY_TYPE_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgstr_t)
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38 #define HB_STRING_ARRAY_POOL_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgstr)
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39 #define HB_STRING_ARRAY_OFFS_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgidx)
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40 #define HB_STRING_ARRAY_LENG_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _length)
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41
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42 static const union HB_STRING_ARRAY_TYPE_NAME {
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43 struct {
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44 /* I like to avoid storing the nul-termination byte since we don't need it,
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45 * but C++ does not allow that.
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46 * https://stackoverflow.com/q/28433862
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47 */
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48 #define _S(s) char HB_PASTE (str, __LINE__)[sizeof (s)];
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49 #include HB_STRING_ARRAY_LIST
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50 #undef _S
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51 } st;
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52 char str[HB_VAR_ARRAY];
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53 }
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54 HB_STRING_ARRAY_POOL_NAME =
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55 {
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56 {
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57 #define _S(s) s,
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58 #include HB_STRING_ARRAY_LIST
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59 #undef _S
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60 }
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61 };
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62 static const unsigned int HB_STRING_ARRAY_OFFS_NAME[] =
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63 {
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64 #define _S(s) offsetof (union HB_STRING_ARRAY_TYPE_NAME, st.HB_PASTE(str, __LINE__)),
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65 #include HB_STRING_ARRAY_LIST
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66 #undef _S
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67 sizeof (HB_STRING_ARRAY_TYPE_NAME)
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68 };
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69
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70 static const unsigned int HB_STRING_ARRAY_LENG_NAME = ARRAY_LENGTH_CONST (HB_STRING_ARRAY_OFFS_NAME) - 1;
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71
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72 static inline hb_bytes_t
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73 HB_STRING_ARRAY_NAME (unsigned int i)
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74 {
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75 assert (i < ARRAY_LENGTH (HB_STRING_ARRAY_OFFS_NAME) - 1);
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76 return hb_bytes_t (HB_STRING_ARRAY_POOL_NAME.str + HB_STRING_ARRAY_OFFS_NAME[i],
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77 HB_STRING_ARRAY_OFFS_NAME[i + 1] - HB_STRING_ARRAY_OFFS_NAME[i] - 1);
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78 }
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79
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80 #undef HB_STRING_ARRAY_TYPE_NAME
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81 #undef HB_STRING_ARRAY_POOL_NAME
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82 #undef HB_STRING_ARRAY_OFFS_NAME
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83 #undef HB_STRING_ARRAY_LENG_NAME
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84
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85 #endif /* HB_STRING_ARRAY_HH */