--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/luajit/src/lj_str.h	Fri Jan 23 22:38:59 2026 -0800
@@ -0,0 +1,31 @@
+/*
+** String handling.
+** Copyright (C) 2005-2023 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_STR_H
+#define _LJ_STR_H
+
+#include <stdarg.h>
+
+#include "lj_obj.h"
+
+/* String helpers. */
+LJ_FUNC int32_t LJ_FASTCALL lj_str_cmp(GCstr *a, GCstr *b);
+LJ_FUNC const char *lj_str_find(const char *s, const char *f,
+				MSize slen, MSize flen);
+LJ_FUNC int lj_str_haspattern(GCstr *s);
+
+/* String interning. */
+LJ_FUNC void lj_str_resize(lua_State *L, MSize newmask);
+LJ_FUNCA GCstr *lj_str_new(lua_State *L, const char *str, size_t len);
+LJ_FUNC void LJ_FASTCALL lj_str_free(global_State *g, GCstr *s);
+LJ_FUNC void LJ_FASTCALL lj_str_init(lua_State *L);
+#define lj_str_freetab(g) \
+  (lj_mem_freevec(g, g->str.tab, g->str.mask+1, GCRef))
+
+#define lj_str_newz(L, s)	(lj_str_new(L, s, strlen(s)))
+#define lj_str_newlit(L, s)	(lj_str_new(L, "" s, sizeof(s)-1))
+#define lj_str_size(len)	(sizeof(GCstr) + (((len)+4) & ~(MSize)3))
+
+#endif