-static char *find_matching_paren();
-static Filter *str2list();
-static Filter *str2simple();
-static int str2subvals();
+static char *find_matching_paren(char *s);
+static Filter *str2list(char *str, long unsigned int ftype);
+static Filter *str2simple(char *str);
+static int str2subvals(char *val, Filter *f);