Changes in version 1.49a:
+* Undefined token
+ The undefined token was systematically mapped to 2 which prevented
+ the use of 2 from the user. This is no longer the case.
+
+* Undefined token
+ If yylex returned a code out of range, yyparse could die. This is
+ no longer the case.
+
* Large grammars
Are now supported (large token numbers, large grammar size (= sum of
the LHS and RHS lengths).