Re: Lua 5 Grammar update

[Mike Pall <mikelu-0507@...>]

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.

That's all (I hope).

Bye,
     Mike