kc3-lang/harfbuzz/util/shape-consumer.hh

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• Hash : 7908e86e
  Author :
  Date : 2025-06-06T20:19:06
  

  [util/test-shape] Only output one line per test
  
  If a shape call was failing, perhaps because of --verify failing,
  hb-shape was producing multiple lines possibly, making the test
  runner get out of sync and fail all following tests.
  
  https://github.com/harfbuzz/harfruzz/issues/60
  

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• util/shape-consumer.hh

• /*
   * Copyright © 2011,2012  Google, Inc.
   *
   *  This is part of HarfBuzz, a text shaping library.
   *
   * Permission is hereby granted, without written agreement and without
   * license or royalty fees, to use, copy, modify, and distribute this
   * software and its documentation for any purpose, provided that the
   * above copyright notice and the following two paragraphs appear in
   * all copies of this software.
   *
   * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
   * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
   * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
   * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
   * DAMAGE.
   *
   * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
   * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
   * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
   * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
   * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
   *
   * Google Author(s): Behdad Esfahbod
   */
  
  #ifndef HB_SHAPE_CONSUMER_HH
  #define HB_SHAPE_CONSUMER_HH
  
  #include "font-options.hh"
  #include "shape-options.hh"
  #include "text-options.hh"
  
  
  template <typename output_t>
  struct shape_consumer_t : shape_options_t
  {
    void add_options (option_parser_t *parser)
    {
      shape_options_t::add_options (parser);
      output.add_options (parser);
    }
  
    template <typename app_t>
    void init (const app_t *app)
    {
      failed = false;
      buffer = hb_buffer_create ();
  
      output.init (buffer, app);
    }
    template <typename app_t>
    bool consume_line (app_t &app)
    {
      unsigned int text_len;
      const char *text;
      if (!(text = app.get_line (&text_len)))
        return false;
  
      output.new_line ();
  
      for (unsigned int n = num_iterations; n; n--)
      {
        populate_buffer (buffer, text, text_len, app.text_before, app.text_after, app.font);
        if (n == 1)
  	output.consume_text (buffer, text, text_len, utf8_clusters);
  
        const char *error = nullptr;
        if (!shape (app.font, buffer, &error))
        {
  	failed = true;
  	output.error (error);
  	return true;
        }
      }
  
      if (glyphs)
        output.consume_glyphs (buffer, nullptr, 0, false);
      else
        output.consume_glyphs (buffer, text, text_len, utf8_clusters);
      return true;
    }
    template <typename app_t>
    void finish (const app_t *app)
    {
      output.finish (buffer, app);
      hb_buffer_destroy (buffer);
      buffer = nullptr;
    }
  
    public:
    bool failed = false;
  
    protected:
    output_t output;
  
    hb_buffer_t *buffer = nullptr;
  };
  
  
  #endif
  

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