Author: William Penn
Date: 21:46:41 01/21/06
Go up one level in this thread
On January 21, 2006 at 21:21:11, Mike Byrne wrote: >On January 21, 2006 at 18:09:20, Robert Hollay wrote: > >>On January 21, 2006 at 11:41:10, Mike Byrne wrote: >> >>>On January 21, 2006 at 10:18:26, William Penn wrote: >>> >>>>On January 20, 2006 at 08:15:24, Christopher Conkie wrote: >>>> >>>>>Life just gets better and better....... >>>>> >>>>>Go now........download........here........ >>>>> >>>>>http://www.playwitharena.com/ >>>>> >>>>>In the Arena Download section on the left hand side menu. >>>>> >>>>>:-) >>>>> >>>>>Christopher >>>> >>>>I haven't been able to use prior versions of Arena because they don't have a >>>>"replace" operation. I need to be able to load a game from a database, modify >>>>it, then replace it in the database at the same position. Arena only has a >>>>"save" operation, so the game is saved at the end of the database (appended) - >>>>messing up the order of games in the database. Can you tell me if this has been >>>>fixed/implimented in the new version? >>>>Thanks, >>>>WP >>> >>>No, it is not a fucntion that Arena has. Although, I agree it would be a "nice >>>to have" function. Perhaps if you contact the authors, they could add it to >>>their list? >> >> Games which are saved under Arena in PGN format are not in a database, but in >>an ordinary file, sequentially written. >> It's difficult to replace or delete games in a sequential file. >> The only possible operation is appending the new game at the end. >> It would be much better to use a true database for that purpose, a lightweight >>database, e.g. dBase or Paradox, which have indexed search capabilities and >>all the above mentioned functions. > >Good point - AFAIK, no one has a replace command when using simple text pgn >files. > >Michael Not true! The Chessbase Fritz GUI (such as came with Shredder 8) and the Shredder Classic 9.1 GUI have a replace operation, and it works fine on PGN files. It is not difficult to do this with a sequential database. You divide the database into 3 strings, the middle string being the game that's modified. Then after modification, you put the 3 strings back together. Pretty simple. WP
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