Re: Lua 5 Grammar update

[Klaas-Jan Stol <vanderlay@...>]

Klaas-Jan Stol wrote:

> Mike Pall wrote:
>
> > Hi,
> >
> > Klaas-Jan Stol wrote:
> >  
> >
> > > Is the new syntax overview of 5.1 already published? If so, could 
> > > you give me a link? I could try to insert the new syntax elements 
> > > into my parser.
> > >   
> >
> >
> > There is no official statement out (yet). And it's still
> > subject to change (but nothing major I think).
> >
> > Short summary of the syntax differences between Lua 5.0 and 5.1:
> >
> > - New right-assoc prefix operator SIZ: '*' expr
> > - New left-assoc infix operator MOD: expr '%' expr
> > - New VARARG expression: '...'
> > - Extended long strings: '[' '='* '[' longstring ']' '='* ']'
> > - Extended long comments: '--' '[' '='* '[' longcomment ']' '='* ']'
> > - The number of '=' must match up.
> > - Long strings and comments cannot be nested in 5.1.
So, just to make sure (before I start implementing the whole thing), you 
can't do:

[=[I said: [==[Hello World]==] to him]=]

But, instead: [[, [=[, [==[, [===[, etc. are just opening "quotes" of 
long strings, (and ]], ]=], ]==], etc are closing quotes of long 
strings). Right?

Klaas-Jan