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- Subject: Re: lpeg as a part of lua (was: An introduction to Lua)
- From: Dirk Laurie <dirk.laurie@...>
- Date: Mon, 23 Oct 2017 05:01:08 +0200
2017-10-23 4:52 GMT+02:00 Charles Heywood <email@example.com>:
> I really don't think there's anything that Lua patterns can do that LPeg
> can't do. If there are, I think it'd be a fun challenge to try and prove
Since it is quite easy to compose an LPeg pattern that simply filters
the entire input string through a Lua function, obviously there is nothing
that Lua without LPeg can do that P:match(str) can't. If you disqualify
LPeg's ability to call Lua, the question becomes academically interesting.
I.e. uninteresting to everybody except the kind of geek that hangs out
on places like, um, this list.
> However, I don't think LPeg patterns should replace Lua patterns.
> LPeg patterns are *much* more sophisticated and replacing the Lua patterns
> with them would make a mile-high barrier of entry, as well as being
> completely backwards incompatible.