Re: [stack] peg: a lazy, non-deterministic concatenative language

Agreed. Peg is the most interesting variant I've seen in quite a while.
I haven't looked deeply yet but it seems to have an Icon flavor to it.

Of course, any concatentative language doesn't have to use a stack,
it's just most convenient.
--
don


On 17 Apr 2012, at 05:26, William Tanksley, Jr wrote:

> John Nowak <[email protected]> wrote:
> > https://github.com/HackerFoo/peg
> > Not mine.
> 
> Amazing... This is creative. He's parsing right to left, and executing
> only what's needed to evaluate the last word. In cases where
> evaluation is ambiguous, he chooses "nondeterministically" (I'm not
> sure what that means). If execution fails, he backtracks to a previous
> ambiguous point. Words are provided to force failures.
> 
> The language uses stack manipulation words, but I'm not sure that it's
> actually a stack. Anyone have any discussion on that point?
> 
> > - jn
> 
> -Wm
> 



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