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comparison mupdf-source/thirdparty/harfbuzz/util/hb-ot-shape-closure.cc @ 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 © 2012 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 #include "batch.hh"
28 #include "font-options.hh"
29 #include "main-font-text.hh"
30 #include "shape-options.hh"
31 #include "text-options.hh"
32
33 const unsigned DEFAULT_FONT_SIZE = FONT_SIZE_NONE;
34 const unsigned SUBPIXEL_BITS = 0;
35
36 struct shape_closure_consumer_t
37 {
38 void add_options (struct option_parser_t *parser)
39 {
40 parser->set_summary ("Find glyph set from input text under shaping closure.");
41 shaper.add_options (parser);
42
43 GOptionEntry entries[] =
44 {
45 {"no-glyph-names", 0, G_OPTION_FLAG_REVERSE, G_OPTION_ARG_NONE, &this->show_glyph_names, "Use glyph indices instead of names", nullptr},
46 {nullptr}
47 };
48 parser->add_group (entries,
49 "format",
50 "Format options:",
51 "Options controlling output formatting",
52 this);
53 }
54
55 void init (const font_options_t *font_opts)
56 {
57 glyphs = hb_set_create ();
58 font = hb_font_reference (font_opts->font);
59 failed = false;
60 buffer = hb_buffer_create ();
61 }
62 template <typename text_options_type>
63 bool consume_line (text_options_type &text_opts)
64 {
65 unsigned int text_len;
66 const char *text;
67 if (!(text = text_opts.get_line (&text_len)))
68 return false;
69
70 hb_set_clear (glyphs);
71 shaper.shape_closure (text, text_len, font, buffer, glyphs);
72
73 if (hb_set_is_empty (glyphs))
74 return true;
75
76 /* Print it out! */
77 bool first = true;
78 for (hb_codepoint_t i = -1; hb_set_next (glyphs, &i);)
79 {
80 if (first)
81 first = false;
82 else
83 printf (" ");
84 if (show_glyph_names)
85 {
86 char glyph_name[64];
87 hb_font_glyph_to_string (font, i, glyph_name, sizeof (glyph_name));
88 printf ("%s", glyph_name);
89 } else
90 printf ("%u", i);
91 }
92
93 return true;
94 }
95 void finish (const font_options_t *font_opts)
96 {
97 printf ("\n");
98 hb_font_destroy (font);
99 font = nullptr;
100 hb_set_destroy (glyphs);
101 glyphs = nullptr;
102 hb_buffer_destroy (buffer);
103 buffer = nullptr;
104 }
105
106 bool failed;
107
108 protected:
109 shape_options_t shaper;
110 hb_bool_t show_glyph_names = true;
111
112 hb_set_t *glyphs = nullptr;
113 hb_font_t *font = nullptr;
114 hb_buffer_t *buffer = nullptr;
115 };
116
117 int
118 main (int argc, char **argv)
119 {
120 using main_t = main_font_text_t<shape_closure_consumer_t, font_options_t, text_options_t>;
121 return batch_main<main_t> (argc, argv);
122 }