text: /*
   * Copyright © 2007,2008,2009  Red Hat, 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.
   *
   * Red Hat Author(s): Behdad Esfahbod
   */
  
  #include "hb-open-file-private.hh"
  #include "hb-ot-layout-gdef-table.hh"
  #include "hb-ot-layout-gsubgpos-private.hh"
  
  #ifdef HAVE_GLIB
  #include <glib.h>
  #endif
  #include <stdlib.h>
  #include <stdio.h>
  
  
  using namespace OT;
  
  #ifndef HB_NO_VISIBILITY
  const void * const OT::_hb_NullPool[HB_NULL_POOL_SIZE / sizeof (void *)] = {};
  #endif
  
  int
  main (int argc, char **argv)
  {
    if (argc != 2) {
      fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]);
      exit (1);
    }
  
    const char *font_data = nullptr;
    int len = 0;
  
  #ifdef HAVE_GLIB
    GMappedFile *mf = g_mapped_file_new (argv[1], false, nullptr);
    font_data = g_mapped_file_get_contents (mf);
    len = g_mapped_file_get_length (mf);
  #else
    FILE *f = fopen (argv[1], "rb");
    fseek (f, 0, SEEK_END);
    len = ftell (f);
    fseek (f, 0, SEEK_SET);
    font_data = (const char *) malloc (len);
    len = fread ((char *) font_data, 1, len, f);
  #endif
  
    printf ("Opened font file %s: %d bytes long\n", argv[1], len);
  
    const OpenTypeFontFile &ot = *CastP<OpenTypeFontFile> (font_data);
  
    switch (ot.get_tag ()) {
    case OpenTypeFontFile::TrueTypeTag:
      printf ("OpenType font with TrueType outlines\n");
      break;
    case OpenTypeFontFile::CFFTag:
      printf ("OpenType font with CFF (Type1) outlines\n");
      break;
    case OpenTypeFontFile::TTCTag:
      printf ("TrueType Collection of OpenType fonts\n");
      break;
    case OpenTypeFontFile::TrueTag:
      printf ("Obsolete Apple TrueType font\n");
      break;
    case OpenTypeFontFile::Typ1Tag:
      printf ("Obsolete Apple Type1 font in SFNT container\n");
      break;
    default:
      printf ("Unknown font format\n");
      break;
    }
  
    int num_fonts = ot.get_face_count ();
    printf ("%d font(s) found in file\n", num_fonts);
    for (int n_font = 0; n_font < num_fonts; n_font++) {
      const OpenTypeFontFace &font = ot.get_face (n_font);
      printf ("Font %d of %d:\n", n_font, num_fonts);
  
      int num_tables = font.get_table_count ();
      printf ("  %d table(s) found in font\n", num_tables);
      for (int n_table = 0; n_table < num_tables; n_table++) {
        const OpenTypeTable &table = font.get_table (n_table);
        printf ("  Table %2d of %2d: %.4s (0x%08x+0x%08x)\n", n_table, num_tables,
  	      (const char *)table.tag,
  	      (unsigned int) table.offset,
  	      (unsigned int) table.length);
  
        switch (table.tag) {
  
        case HB_OT_TAG_GSUB:
        case HB_OT_TAG_GPOS:
  	{
  
  	const GSUBGPOS &g = *CastP<GSUBGPOS> (font_data + table.offset);
  
  	int num_scripts = g.get_script_count ();
  	printf ("    %d script(s) found in table\n", num_scripts);
  	for (int n_script = 0; n_script < num_scripts; n_script++) {
  	  const Script &script = g.get_script (n_script);
  	  printf ("    Script %2d of %2d: %.4s\n", n_script, num_scripts,
  	          (const char *)g.get_script_tag(n_script));
  
  	  if (!script.has_default_lang_sys())
  	    printf ("      No default language system\n");
  	  int num_langsys = script.get_lang_sys_count ();
  	  printf ("      %d language system(s) found in script\n", num_langsys);
  	  for (int n_langsys = script.has_default_lang_sys() ? -1 : 0; n_langsys < num_langsys; n_langsys++) {
  	    const LangSys &langsys = n_langsys == -1
  				   ? script.get_default_lang_sys ()
  				   : script.get_lang_sys (n_langsys);
  	    if (n_langsys == -1)
  	      printf ("      Default Language System\n");
  	    else
  	      printf ("      Language System %2d of %2d: %.4s\n", n_langsys, num_langsys,
  		      (const char *)script.get_lang_sys_tag (n_langsys));
  	    if (!langsys.has_required_feature ())
  	      printf ("        No required feature\n");
  	    else
  	      printf ("        Required feature index: %d\n",
  		      langsys.get_required_feature_index ());
  
  	    int num_features = langsys.get_feature_count ();
  	    printf ("        %d feature(s) found in language system\n", num_features);
  	    for (int n_feature = 0; n_feature < num_features; n_feature++) {
  	      printf ("        Feature index %2d of %2d: %d\n", n_feature, num_features,
  	              langsys.get_feature_index (n_feature));
  	    }
  	  }
  	}
  
  	int num_features = g.get_feature_count ();
  	printf ("    %d feature(s) found in table\n", num_features);
  	for (int n_feature = 0; n_feature < num_features; n_feature++) {
  	  const Feature &feature = g.get_feature (n_feature);
  	  int num_lookups = feature.get_lookup_count ();
  	  printf ("    Feature %2d of %2d: %c%c%c%c\n", n_feature, num_features,
  	          HB_UNTAG(g.get_feature_tag(n_feature)));
  
  	  printf ("        %d lookup(s) found in feature\n", num_lookups);
  	  for (int n_lookup = 0; n_lookup < num_lookups; n_lookup++) {
  	    printf ("        Lookup index %2d of %2d: %d\n", n_lookup, num_lookups,
  	            feature.get_lookup_index (n_lookup));
  	  }
  	}
  
  	int num_lookups = g.get_lookup_count ();
  	printf ("    %d lookup(s) found in table\n", num_lookups);
  	for (int n_lookup = 0; n_lookup < num_lookups; n_lookup++) {
  	  const Lookup &lookup = g.get_lookup (n_lookup);
  	  printf ("    Lookup %2d of %2d: type %d, props 0x%04X\n", n_lookup, num_lookups,
  	          lookup.get_type(), lookup.get_props());
  	}
  
  	}
  	break;
  
        case GDEF::tableTag:
  	{
  
  	const GDEF &gdef = *CastP<GDEF> (font_data + table.offset);
  
  	printf ("    Has %sglyph classes\n",
  		  gdef.has_glyph_classes () ? "" : "no ");
  	printf ("    Has %smark attachment types\n",
  		  gdef.has_mark_attachment_types () ? "" : "no ");
  	printf ("    Has %sattach points\n",
  		  gdef.has_attach_points () ? "" : "no ");
  	printf ("    Has %slig carets\n",
  		  gdef.has_lig_carets () ? "" : "no ");
  	printf ("    Has %smark sets\n",
  		  gdef.has_mark_sets () ? "" : "no ");
  	break;
  	}
        }
      }
    }
  
    return 0;
  }
  
  
  