[name] Add src/test-name-table tool to show all font names

src/Makefile.am

@@ -348,6 +348,7 @@ noinst_PROGRAMS = \
 	main \
 	test \
 	test-buffer-serialize \
+	test-name-table \
 	test-size-params \
 	test-would-substitute \
 	$(NULL)
@@ -361,17 +362,21 @@ test_SOURCES = test.cc
 test_CPPFLAGS = $(HBCFLAGS) $(FREETYPE_CFLAGS)
 test_LDADD = libharfbuzz.la $(HBLIBS) $(FREETYPE_LIBS)
 
-test_would_substitute_SOURCES = test-would-substitute.cc
-test_would_substitute_CPPFLAGS = $(HBCFLAGS) $(FREETYPE_CFLAGS)
-test_would_substitute_LDADD = libharfbuzz.la $(HBLIBS) $(FREETYPE_LIBS)
+test_buffer_serialize_SOURCES = test-buffer-serialize.cc
+test_buffer_serialize_CPPFLAGS = $(HBCFLAGS)
+test_buffer_serialize_LDADD = libharfbuzz.la $(HBLIBS)
+
+test_name_table_SOURCES = test-name-table.cc
+test_name_table_CPPFLAGS = $(HBCFLAGS)
+test_name_table_LDADD = libharfbuzz.la $(HBLIBS)
 
 test_size_params_SOURCES = test-size-params.cc
 test_size_params_CPPFLAGS = $(HBCFLAGS)
 test_size_params_LDADD = libharfbuzz.la $(HBLIBS)
 
-test_buffer_serialize_SOURCES = test-buffer-serialize.cc
-test_buffer_serialize_CPPFLAGS = $(HBCFLAGS)
-test_buffer_serialize_LDADD = libharfbuzz.la $(HBLIBS)
+test_would_substitute_SOURCES = test-would-substitute.cc
+test_would_substitute_CPPFLAGS = $(HBCFLAGS) $(FREETYPE_CFLAGS)
+test_would_substitute_LDADD = libharfbuzz.la $(HBLIBS) $(FREETYPE_LIBS)
 
 dist_check_SCRIPTS = \
 	check-c-linkage-decls.sh \

src/test-name-table.cc

@@ -0,0 +1,67 @@
+/*
+ * Copyright © 2018  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
+ */
+
+#include "hb.h"
+#include "hb-ot.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+int
+main (int argc, char **argv)
+{
+  if (argc != 2) {
+    fprintf (stderr, "usage: %s font-file\n", argv[0]);
+    exit (1);
+  }
+
+  hb_blob_t *blob = hb_blob_create_from_file (argv[1]);
+  hb_face_t *face = hb_face_create (blob, 0 /* first face */);
+  hb_blob_destroy (blob);
+  blob = nullptr;
+
+  const hb_ot_name_entry_t *entries;
+  unsigned int count = hb_ot_name_get_names (face, &entries);
+
+  for (unsigned int i = 0; i < count; i++)
+  {
+    printf ("%d	%s	",
+	    entries[i].name_id,
+	    hb_language_to_string (entries[i].language));
+
+    char buf[64];
+    unsigned int buf_size = sizeof (buf);
+    hb_ot_name_get_utf8 (face,
+			 entries[i].name_id,
+			 entries[i].language,
+			 &buf_size,
+			 buf);
+
+    printf ("%s\n", buf);
+  }
+
+  return count ? 0 : 1;
+}