void macro_tokens_from_string (struct macro_tokens *, const struct substring,
enum segmenter_mode);
-void macro_tokens_to_representation (struct macro_tokens *, struct string *);
+void macro_tokens_to_representation (struct macro_tokens *, struct string *,
+ size_t *ofs, size_t *len);
void macro_tokens_print (const struct macro_tokens *, FILE *);