+ %union {
+ unsigned long int num;
+ enum operator op;
+ struct expression *exp;
+ }
+
+ %{
+ ...
+ static int yylex PARAMS ((YYSTYPE *lval, const char **pexp));
+ ...
+ %}
+
+Where the first part defines struct expression, the second uses it to
+define YYSTYPE, and the last uses YYSTYPE. Only this order is valid.
+
+* --graph
+Show reductions. []
+
+* Broken options ?
+** %no-lines [ok]
+** %no-parser []
+** %pure-parser []
+** %semantic-parser []
+** %token-table []
+** Options which could use parse_dquoted_param ().
+Maybe transfered in lex.c.
+*** %skeleton [ok]
+*** %output []
+*** %file-prefix []
+*** %name-prefix []
+
+** Skeleton strategy. []
+Must we keep %no-parser?
+ %token-table?
+*** New skeletons. []