XXX

match.c

@@ -5,6 +5,9 @@
 #include <stdarg.h>
 #include <string.h>
 
+#include <err.h>
+#include <stdio.h>
+
 #include "lexer.h"
 
 static void
@@ -19,12 +22,15 @@ match_func_init(struct match_func *mf)
 	for (i = 0; mc_functions[i].expr != NULL; i++) {
 		const struct match_func *candidate = &mc_functions[i];
 
+		warnx("XXX %s: candidate '%s'", __func__, candidate->expr);
+
 		if (strcmp(mf->expr, candidate->expr) == 0) {
 			mf->callback = candidate->callback;
 			return;
 		}
 	}
 
+	warnx("XXX %s: no callback for '%s'", __func__, mf->expr);
 	__builtin_trap(); /* UNREACHABLE */
 }