--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/mujs/regexp.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,46 @@
+#ifndef regexp_h
+#define regexp_h
+
+#define regcompx js_regcompx
+#define regfreex js_regfreex
+#define regcomp js_regcomp
+#define regexec js_regexec
+#define regfree js_regfree
+
+typedef struct Reprog Reprog;
+typedef struct Resub Resub;
+
+Reprog *regcompx(void *(*alloc)(void *ctx, void *p, int n), void *ctx,
+	const char *pattern, int cflags, const char **errorp);
+void regfreex(void *(*alloc)(void *ctx, void *p, int n), void *ctx,
+	Reprog *prog);
+
+Reprog *regcomp(const char *pattern, int cflags, const char **errorp);
+int regexec(Reprog *prog, const char *string, Resub *sub, int eflags);
+void regfree(Reprog *prog);
+
+enum {
+	/* regcomp flags */
+	REG_ICASE = 1,
+	REG_NEWLINE = 2,
+
+	/* regexec flags */
+	REG_NOTBOL = 4,
+};
+
+/* If you redefine REG_MAXSUB, you must make sure both the calling
+ * code and the regexp.c compilation unit use the same value!
+ */
+#ifndef REG_MAXSUB
+#define REG_MAXSUB 16
+#endif
+
+struct Resub {
+	int nsub;
+	struct {
+		const char *sp;
+		const char *ep;
+	} sub[REG_MAXSUB];
+};
+
+#endif