--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/harfbuzz/src/test-use-table.cc	Mon Sep 15 11:44:09 2025 +0200
@@ -0,0 +1,18 @@
+#include "hb-ot-shaper-use-table.hh"
+
+int main (int argc, char **argv)
+{
+  if (argc != 2)
+  {
+    for (unsigned u = 0; u < 0x10FFFFu; u++)
+      printf ("U+%04X %d\n", u, hb_use_get_category (u));
+    return 0;
+  }
+
+  hb_codepoint_t u;
+  sscanf (argv[1], "%x", &u);
+
+  printf ("%d\n", hb_use_get_category (u));
+
+  return 0;
+}