[antlr-interest] Multipass parsing

[John D. Mitchell]

>>>>> "FranklinChen" == FranklinChen  <FranklinChen at cmu.edu> writes:
[...]

>> FWIW, that's a *really* bad idea in a language.

> It's also not under my control.  I am given a language, I need to parse
> it, so I'm interested in ideas on how to do it with ANTLR, if possible.
> I didn't design this language.

My condolences.


[...]
>> As I noted, you can write a very permissive lexer and a permissive
>> parser and then do whatever specific checks via multiple tree grammars.

> Context-sensitivity, including the whitespace issue, makes this
> difficult.  For example: grape[fruit] should be differently parsed from
> grape [C { int i; }] and differently parsed from grape [Perl { my $i = 3;
> }]

> I need multiple lexers, not just one permissive lexer.

Given your example, I still don't see why you might actually need it.

Thanks,
	John


 
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