[antlr-interest] [comp.compilers.tools.pccts] Re: Is there a run-time parsing facility
open.zone at virgin.net
Wed May 7 15:11:45 PDT 2003
> > Not sure about how it can be done with C++ in the general case,
> > Monty?
> You could hack something together that does this I guess. Dynamic
> works pretty ok on unix, yet you need a working compiler set, some
> specify the right libraries and stuff for the loaded parts.
Dynamic loading (DLL) is at the core of Windows too.
> Best would probably be to rewrite a bit and convert the switch
> and contents to tables with char ranges and function pointers to the
> actions (bit of a simplified description this). These then could be
> on runtime. Parser would then degenerate to a driver for these
My first thought was defining COM-like binary interfaces for the
Lexer/Parser/TreeParser that generated components will be required to
implement. All interaction is then through those binary interfaces.
Of course this is much easier for Windows - since COM is present -
than other platforms (although Mozilla's XPCOM fills the gap nicely).
In the end, it similar to the C#/Java solution actually but the devil
is in the details as you mentioned.
> I guess it's doable but not with the time I have to spent on antlr
> then I'm not even mentioning d*mn MSVC)
With MS's recent-ish "acquisitions" of quite a few good C++ guys like
Herb Sutter and Stan Lippman, it can only get better right?
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