Re: [computer-go] Java SGF Parser

2008-08-04 Thread Stuart A. Yeates
On Mon, Aug 4, 2008 at 12:55 PM, Ross Werner [EMAIL PROTECTED] wrote:
 I'm looking for a nice Java SGF library that allows you to parse SGF files
 into a simple tree, and to serialize your own tree back to SGF. I've looked
 at a few of the open source Go projects currently out there, and I've
 searched the computer-go archives (and even found a post from myself a few
 years back on the subject), but haven't found anything that seems very
 robust.

 So, my question here is twofold:
 1) Does anybody know of a good Java SGF parser out there?
 2) What would your criteria be for a good SGF parser? (e.g. it's more
 important that it's fast than memory-efficient, or vice-versa, or have a
  certain API, or allow for traversing the game tree without holding the
 entire file in memory, etc.)

 If I can't find a good one out there, I may write one myself, probably based
 on JavaCC/SableCC, which I'm somewhat familiar with.

I have what I believe to be a fast JavaCC sgf grammar at:

http://code.google.com/p/jgogears/source/browse/trunk/jgogears/jgogears/SGF/SGF.jj

I am interested in developing it into a fully-functional java bean.

cheers
stuart
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Re: [computer-go] Java SGF Parser

2008-08-04 Thread Mark Boon
I have a SGF parser in Java in my library. I haven't updated it in a  
while. You can find the SGF package here:


https://tesujigoframework.dev.java.net/source/browse/ 
tesujigoframework/TesujiGoFramework/source/tesuji/games/sgf/


I think it's pretty efficient and easy to use. For examples look at:

 https://tesujigoframework.dev.java.net/source/browse/ 
tesujigoframework/TesujiGoFramework/source/tesuji/games/go/test/ 
SGFUnitTest.java


It has examples how to parse from a string, a file or how to iterate  
over a large game-collection without keeping everything in memory.  
There's also stuff there to make SGF out of a tree again and more  
such things.


Let me know if it's any use, so far I haven't seen much interest in  
this library. It seems everybody prefers to write their own standard  
stuff.


Mark

On 3-aug-08, at 21:55, Ross Werner wrote:

I'm looking for a nice Java SGF library that allows you to parse  
SGF files into a simple tree, and to serialize your own tree back  
to SGF. I've looked at a few of the open source Go projects  
currently out there, and I've searched the computer-go archives  
(and even found a post from myself a few years back on the  
subject), but haven't found anything that seems very robust.


So, my question here is twofold:
1) Does anybody know of a good Java SGF parser out there?
2) What would your criteria be for a good SGF parser? (e.g. it's  
more important that it's fast than memory-efficient, or vice-versa,  
or have a  certain API, or allow for traversing the game tree  
without holding the entire file in memory, etc.)


If I can't find a good one out there, I may write one myself,  
probably based on JavaCC/SableCC, which I'm somewhat familiar with.


Thanks in advance for any feedback,
~ Ross
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[computer-go] Java SGF Parser

2008-08-03 Thread Ross Werner
I'm looking for a nice Java SGF library that allows you to parse SGF 
files into a simple tree, and to serialize your own tree back to SGF. 
I've looked at a few of the open source Go projects currently out there, 
and I've searched the computer-go archives (and even found a post from 
myself a few years back on the subject), but haven't found anything that 
seems very robust.


So, my question here is twofold:
1) Does anybody know of a good Java SGF parser out there?
2) What would your criteria be for a good SGF parser? (e.g. it's more 
important that it's fast than memory-efficient, or vice-versa, or have a 
 certain API, or allow for traversing the game tree without holding the 
entire file in memory, etc.)


If I can't find a good one out there, I may write one myself, probably 
based on JavaCC/SableCC, which I'm somewhat familiar with.


Thanks in advance for any feedback,
~ Ross
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Re: [computer-go] Java SGF Parser

2008-08-03 Thread Ray Tayek

At 05:55 PM 8/3/2008, you wrote:
I'm looking for a nice Java SGF library that allows you to parse SGF 
files into a simple tree, and to serialize your own tree back to SGF. ...


i wrote one in java a few years ago. iirc, i based it on gnugo's 
parser. i was trying to compile annotations from previous instances 
of a and sgf file to a later version, that had more moves, but was 
missing some of the annotations. if you have any interest, let me 
know and i will send you a zip.


thanks

---
vice-chair http://ocjug.org/


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