--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/luajit/src/lj_char.c	Thu Jan 22 20:10:30 2026 -0800
@@ -0,0 +1,43 @@
+/*
+** Character types.
+** Donated to the public domain.
+**
+** This is intended to replace the problematic libc single-byte NLS functions.
+** These just don't make sense anymore with UTF-8 locales becoming the norm
+** on POSIX systems. It never worked too well on Windows systems since hardly
+** anyone bothered to call setlocale().
+**
+** This table is hardcoded for ASCII. Identifiers include the characters
+** 128-255, too. This allows for the use of all non-ASCII chars as identifiers
+** in the lexer. This is a broad definition, but works well in practice
+** for both UTF-8 locales and most single-byte locales (such as ISO-8859-*).
+**
+** If you really need proper character types for UTF-8 strings, please use
+** an add-on library such as slnunicode: http://luaforge.net/projects/sln/
+*/
+
+#define lj_char_c
+#define LUA_CORE
+
+#include "lj_char.h"
+
+LJ_DATADEF const uint8_t lj_char_bits[257] = {
+    0,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  3,  3,  3,  3,  3,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    2,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,
+  152,152,152,152,152,152,152,152,152,152,  4,  4,  4,  4,  4,  4,
+    4,176,176,176,176,176,176,160,160,160,160,160,160,160,160,160,
+  160,160,160,160,160,160,160,160,160,160,160,  4,  4,  4,  4,132,
+    4,208,208,208,208,208,208,192,192,192,192,192,192,192,192,192,
+  192,192,192,192,192,192,192,192,192,192,192,  4,  4,  4,  4,  1,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128
+};
+