Re: Lpeg for one who is regexp-poisoned...

[Roberto Ierusalimschy <roberto@...>]

> Here's my LPEG search function:
> 
> 
> function search(patt)
>      return (patt + P(1))^0
> end
> 
> 
> Apply it to any pattern.

Any pattern that does not match the empty string:

patt = lpeg.P'a'^0
search(patt)   --> error: loop body may accept empty string

(Also, for internal reasons, the option P{ patt + (1 * V(1)) } is
faster.)

-- Roberto