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Subject: Re: Crafty 17.13 - re-importing FEN files?

Author: Robert Hyatt

Date: 19:02:01 11/04/00

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On November 04, 2000 at 12:58:44, Wieland Belka wrote:

>On November 03, 2000 at 18:16:44, Wieland Belka wrote: >On November 02, 2000 at
>14:30:31, Robert Hyatt wrote:
>>>
>>>>On November 02, 2000 at 13:21:21, Wieland Belka wrote:
>>>>
>>>>>Hello Crafty friends,
>>>>>
>>>>>I set a position with command "setboard", let analyze it by Crafty, forced a
>>>>>move and saved this position with command "savepos", without file ending "fen".
>>>>>But it was not possible to re-import it again: no "read", no "in" command ...
>>>>>
>>>>>Would anybody help?
>>>>>
>>>>>Thanks Wieland
>>>>
>>>>>
>>>>You should be able to say "input <file>" and have it set the position up.
>>>>I do this all the time.  (in works for input of course, as would inp, and
>>>>inpu).
>>>
>>>Thanks for reply!
>>>
>>>In your Crafty command list v. 17.XX the command "input" was only explained for
>>>import of command files?! No other commands importing game files?!
>>>
>>>Okay, I tried to do like you told, with fen and pgn files - only failures by
>>>Crafty!? Crafty was crashing down ...
>>>
>>>regards Wieland
>
>>I am not sure what you are trying to do. "savepos <xxx>" saves a FEN position in file "xxx".
>
>That is clear, of course. And I was doing so ...
>
>>You can later type "in xxx" and the position will restore to exactly what you saved.
>
>No! I tried that on this way: At first I imported a PGN file with command
>"read", then I exported again as a FEN file with command "savepos" and
>re-imported with comand "in". That's okay. But: Another FEN file produced by a
>third software I could not import with "in" - Crafty was crashing down! But this
>same FEN file I could read by Winboard exactly?! What are you telling now?
>
> "in" inputs >and executes commands from a file...  it won't suck in pgn games
>>or anything else.  To get a PGN game into crafty to fiddle with (ie to reset
>>to a particular position or whatever) type "read <filename>" where <filename>
>>is a file in PGN format.  You can only work with one PGN game at a time inside
>>crafty, so this doesn't sound like what you are asking.
>
>Bob, the point is: I read your command list v. 17.XX again and again. And I
>could not find these explanations to command "input" given here?!
>
>Am I right saying your command list is not completely? I'm missing commands like
>benchmark, freq, cab ... or using CPU time?! Your explanations to command
>"input" by command list are not well. What can I do? I can only read your
>command list, not more ... ;-)
>
>regards Wieland


If you "in" a file, it must have an "exit" on the end.  I can't use an
end-of-file test, because the code that handles "in" is the same code that
reads from stdin, and an eof from stdin _must_ cause the program to
terminate, else it will loop forever.

look at the file after a 'savepos'.  it has an exit added automatically.

Note that the "setboard" command is not needed, crafty will detect that it
has read a FEN string and set the position correctly.



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