Re: LPeg back captures

[Sean Conner <sean@...>]

It was thus said that the Great Andrew Starks once stated:
> On Wednesday, October 23, 2013, Sean Conner wrote:
> 
> >         DIGIT        = R"09"
> >         delim_char   = P"!" -- Cb("delim")
> >         flags        = P"i"
> >         backref      = P"\\" * DIGIT
> >         escapeddelim = P"\\" * delim_char
> >         anychar      = P(1) - delim_char
> >         string       = (escapeddelim + anychar)^1
> >         repl         = C((string + backref)^0)
> >         ere          = C((P(1) - delim_char)^0)
> >         idelim_char  = Cg(P"/" + P"!" + (P(1) - (DIGIT + flags)),"delim")
> >         regexp       = Ct(
> >                             idelim_char
> >                             * Cg(ere,"re")
> >                             * delim_char
> >                             * Cg(repl,"replace")
> >                             * delim_char
> >                             * Cg(flags^0,"flags")
> >                          )
> >
> Crap, sorry. That was wrong. I mixed up the other half of it, which is Cg.
> 
> Okay, first, I believe that you need to have your "delim" defined in a Cg
> before the back capture, which I didn't see. So

  I do that---check the definition of regexp and idelim_char.

  -spc (Still puzzled)