Re: yet another pattern-matching library for Lua

[mitchell <mforal.news@...>]

Hi,

> I am releasing a prototype of (yet) another pattern-matching
> library for Lua, called LPeg:
>
>   http://www.inf.puc-rio.br/~roberto/lpeg.html
>
> Because the library is rather unconventional, all things in it are
> experimental (even its name).
>
> Unlike most pattern-matching libraries, LPeg is not based on regular
> expressions, but on Parsing Expression Grammars (which in turn are based
> on TDPLs, a technique using top-down parsers with limited backtracking
> developed in the 70s):
>
> Why LPeg?
>
> - It seems to be quite efficient.
>
> - It has a simple implementation; patterns are translated to programs
> for a small parsing machine.
>
> - It is quite complete. Besides the usual pattern-matching operators
> based on regular expressions (alternation, concatenation, and
> repetition, but with a twisted semantics), it also supports BNF-like
> grammars (again with a twisted semantics; see the docs).
>
> - It has a formal ground. (Unlike most pattern-matching libraries today,
> which are ad-hoc collections of facilities loosely inspired by regular
> expressions.)
>
> Have fun!
>
> -- Roberto

Is it possible to get this to work with Lua 5.0?

Thanks,
-Mitchell;