parseDSN rewrite

Hello ppl, Due the problems I had with the DB.php parseDSN method, I decided to rewrite the function to make it work properly (attached in the msg). All the dsn formats works good, but there are some considerations: * Added a new permitted format: empty passwords: phptype://username:@hostspec/database * Added new possible formats in database, this is: phptype://username:@hostspec/database -> database phptype://username:@hostspec/usr/dbs/test.db -> /usr/dbs/test.db phptype://username:@hostspec/c:\winpof\test.db -> c:\winpof\test.db * At the start of the method I've putted: $dsn=urldecode($dsn); I think, we shouldn't modify o decode params, this is user stuff, but ok, it's there. Probably this function is faster than the original function, because it mostly use string function rather than regex. Perhaps that helps, Tomas V.V.Cox