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newLISP Fan Club

Forum => newLISP in the real world => Topic started by: Xcalibor on March 08, 2010, 04:03:38 AM

Title: Writing a parser
Post by: Xcalibor on March 08, 2010, 04:03:38 AM
Greetings all,



I have written a quick 'n' dirty Perl parser for the SGF (Smart Game Format) which is used, among others, to record Go (Igo, Baduk, Weiqi) matches.



Now I'd like to try doing something similar in NewLISP, but I don't want to directly translate the Perl one, but instead try to build something idiomatic...



Is there any examples on how to build a parser in NewLISP? some previous art, even if parsing different document formats?



Thanks and laters
Title: Re: Writing a parser
Post by: HPW on March 08, 2010, 06:04:41 AM
The infix module is a parser:



http://www.newlisp.org/code/modules/infix.lsp.html
Title: Re: Writing a parser
Post by: Lutz on March 08, 2010, 06:09:58 AM
... and here is a second example: a JSON parser:



http://www.newlisp.org/syntax.cgi?code/json.lsp.txt
Title: Re: Writing a parser
Post by: cormullion on March 08, 2010, 09:17:36 AM
... and I suppose Nestor is a parser of sorts



//http://unbalanced-parentheses.nfshost.com/downloads/nestor.lsp.txt.html



since it parses newLISP source code. I use it to generate the coloured syntax listings you see. I wrote a bit about it:



//http://unbalanced-parentheses.nfshost.com/projectnestorpart1
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