[util] Add --list-shapers to hb-view and hb-shape
diff --git a/util/options.cc b/util/options.cc
index 349c199..a3da825 100644
--- a/util/options.cc
+++ b/util/options.cc
@@ -182,6 +182,19 @@
return TRUE;
}
+static G_GNUC_NORETURN gboolean
+list_shapers (const char *name G_GNUC_UNUSED,
+ const char *arg G_GNUC_UNUSED,
+ gpointer data G_GNUC_UNUSED,
+ GError **error G_GNUC_UNUSED)
+{
+ for (const char **shaper = hb_shape_list_shapers (); *shaper; shaper++)
+ g_printf ("%s\n", *shaper);
+
+ exit(0);
+}
+
+
static void
parse_space (char **pp)
@@ -370,7 +383,9 @@
{
GOptionEntry entries[] =
{
- {"shapers", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_shapers, "Comma-separated list of shapers", "list"},
+ {"list-shapers", 0, G_OPTION_FLAG_NO_ARG,
+ G_OPTION_ARG_CALLBACK, (gpointer) &list_shapers, "List available shapers and quit", NULL},
+ {"shapers", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_shapers, "Comma-separated list of shapers to try","list"},
{"direction", 0, 0, G_OPTION_ARG_STRING, &this->direction, "Set text direction (default: auto)", "ltr/rtl/ttb/btt"},
{"language", 0, 0, G_OPTION_ARG_STRING, &this->language, "Set text language (default: $LANG)", "langstr"},
{"script", 0, 0, G_OPTION_ARG_STRING, &this->script, "Set text script (default: auto)", "ISO-15924 tag"},
