1  Reuses a dictionary for the hash table to reduce the string compare
 2  costs. Not worth it unless validating big DTDs
 3  
 4  		without		with
 5  db10000  tree	175/79		179/81
 6  db100000 stream	1222		1217
 7  dba100000stream	593		601
 8  REC validation	1986		2098
 9  Docbook valid	10808		10649
10  
11  Tue Feb 24 19:09:49 CET 2004