87 lines
2.6 KiB
C++
87 lines
2.6 KiB
C++
/*
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* Copyright © 2010,2011 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Behdad Esfahbod
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*/
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#include <hb.h>
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#include <hb-ot.h>
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#include <stdlib.h>
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#include <stdio.h>
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int
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main (int argc, char **argv)
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{
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if (argc != 3) {
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fprintf (stderr, "usage: %s font-file text\n", argv[0]);
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exit (1);
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}
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/* Create the face */
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hb_blob_t *blob = hb_blob_create_from_file_or_fail (argv[1]);
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hb_face_t *face = hb_face_create (blob, 0 /* first face */);
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hb_blob_destroy (blob);
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blob = nullptr;
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hb_font_t *font = hb_font_create (face);
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hb_buffer_t *buffer = hb_buffer_create ();
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hb_buffer_add_utf8 (buffer, argv[2], -1, 0, -1);
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hb_buffer_guess_segment_properties (buffer);
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hb_shape (font, buffer, NULL, 0);
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hb_tag_t features[] = {HB_TAG('a','a','l','t'), HB_TAG_NONE};
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hb_set_t *lookup_indexes = hb_set_create ();
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hb_ot_layout_collect_lookups (face,
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HB_OT_TAG_GSUB,
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NULL, NULL,
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features,
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lookup_indexes);
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printf ("lookups %u\n", hb_set_get_population (lookup_indexes));
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unsigned count;
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hb_glyph_info_t *info = hb_buffer_get_glyph_infos (buffer, &count);
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for (unsigned i = 0; i < count; i++)
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{
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unsigned alt_count = 0;
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for (unsigned lookup_index = HB_SET_VALUE_INVALID;
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hb_set_next (lookup_indexes, &lookup_index);)
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if ((alt_count = hb_ot_layout_lookup_get_glyph_alternates (face,
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lookup_index,
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info[i].codepoint,
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0,
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NULL,
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NULL)))
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break;
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printf ("glyph %u alt count %u\n", info[i].codepoint, alt_count);
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}
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hb_set_destroy (lookup_indexes);
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hb_buffer_destroy (buffer);
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hb_font_destroy (font);
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hb_face_destroy (face);
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return 0;
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}
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