[util] Add hb-shape --ned

For not displaying extra data: no clusters, no advance. Just data pertaining
to where glyphs end up on the screen.

test/shaping/data/text-rendering-tests/extract-tests.py

@@ -40,6 +40,6 @@ for elt in html.findall(".//*[@class='expected'][@ft:id]", namespaces):
 		assert href[0] == '#'
 		glyphname = '.'.join(href[1:].split('/')[1].split('.')[1:])
 		glyphs.append((glyphname, x, y))
-	print("../fonts/%s:--font-size=1000 --no-clusters --no-advances:%s:%s" % (font, unistr(text), glyphstr(glyphs)))
+	print("../fonts/%s:--font-size=1000 --ned --font-funcs=ft:%s:%s" % (font, unistr(text), glyphstr(glyphs)))
 
 sys.exit(0 if found else 1)

util/options.cc

@@ -830,6 +830,17 @@ parse_verbose (const char *name G_GNUC_UNUSED,
   return true;
 }
 
+static gboolean
+parse_ned (const char *name G_GNUC_UNUSED,
+	   const char *arg G_GNUC_UNUSED,
+	   gpointer    data G_GNUC_UNUSED,
+	   GError    **error G_GNUC_UNUSED)
+{
+  format_options_t *format_opts = (format_options_t *) data;
+  format_opts->show_clusters = format_opts->show_advances = false;
+  return true;
+}
+
 void
 format_options_t::add_options (option_parser_t *parser)
 {
@@ -850,6 +861,8 @@ format_options_t::add_options (option_parser_t *parser)
 			      G_OPTION_ARG_NONE,	&this->show_clusters,		"Do not output cluster indices",					nullptr},
     {"show-extents",	0, 0, G_OPTION_ARG_NONE,	&this->show_extents,		"Output glyph extents",							nullptr},
     {"show-flags",	0, 0, G_OPTION_ARG_NONE,	&this->show_flags,		"Output glyph flags",							nullptr},
+    {"ned",	      'v', G_OPTION_FLAG_NO_ARG,
+			      G_OPTION_ARG_CALLBACK,	(gpointer) &parse_ned,		"No Extra Data; Do not output clusters or advances",			nullptr},
     {"trace",	      'V', 0, G_OPTION_ARG_NONE,	&this->trace,			"Output interim shaping results",					nullptr},
     {nullptr}
   };