Added backrefs

1 files changed, 2 insertions, 0 deletions

diff --git a/grammar.h b/grammar.h
index 56d7ef6..f75b111 100644
--- a/grammar.h
+++ b/grammar.h
@@ -11,6 +11,8 @@
 
 grammar_t *new_grammar(void);
 void add_def(grammar_t *g, const char *src, const char *name, vm_op_t *op);
+void push_backref(grammar_t *g, const char *name, match_t *capture);
+void pop_backrefs(grammar_t *g, size_t count);
 vm_op_t *load_grammar(grammar_t *g, const char *source);
 vm_op_t *lookup(grammar_t *g, const char *name);