[Cl-yacc-ebnf-devel] Parser for parsers

[Mikhail Novikov]

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Hello!

Pushed my changes. I think this is a nice base for how this parser-parser should work, but some usability changes would be really nice and I am a bit stuck at that.

Thanks for your help, Mikhail

On 01/04/2010 03:40 PM, Plato Wu wrote:
> Mikhail Novikov <freiksenet at gmail.com> writes:
> 
>> Hello!
>>
>> I hope you had nice and happy holidays :)
>>
>> As you all know, the ebnf part of the cl-yacc is fully implemented and working
>> and now there is a need to make parser for normal style ebnf grammar. As there
>> are many modifications of ebnf grammar (standard, CLHS, extended) I though that
>> it would be nice to have an abstraction layer on top of cl-yacc that allows to
>> define grammar types in easy way. Basically, user provides cl-yacc grammar for
>> the grammar type (like ebnf) and then it gets a closure which outputs a parser
>> each time it receives actual grammar in previously given style. I have done
>> this part, but now the problem is that it is very hard to generalize grammar
>> styles, so definition of new grammar types is as tedious as normal parser
>> grammar definition.
>>
>> I wonder if anyone have good ideas on how to abstract this kind of thing
>> efficiently.
>>
>> Cheers, Mikhail
>>
>> _______________________________________________
>> Cl-yacc-ebnf-devel mailing list
>> Cl-yacc-ebnf-devel at common-lisp.net
>> http://common-lisp.net/cgi-bin/mailman/listinfo/cl-yacc-ebnf-devel
> 
> Could you push the part which you have finished first? Thank you!

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