lua 5.2 EBNF in manual

[Jason Nielsen <drjdnielsen@...>]

I've been looking at the EBNF in the manual and I'm a bit confused by the following two rules:

var ::=  Name | prefixexp ‘[’ exp ‘]’ | prefixexp ‘.’ Name

prefixexp ::= var | functioncall | ‘(’ exp ‘)’

if you expand this out you get var on the right hand side of the var rule definition.  I'm not a CS guru so perhaps I'm misunderstanding EBNF notation.

Thanks,

Jason