11. Полный синтаксис Lua

chunk ::= {stat [`;']}
block ::= chunk
stat ::=  varlist1 `=' explist1 

          | functioncall 

          | do block end 

          | while exp1 do block end 

          | repeat block until exp1 

          | if exp1 then block {elseif
            exp1 then block} [else block] end

          | return [explist1] 

          | break 

          | for `name' `=' exp1 `,'
            exp1 [`,' exp1] do block end 

          | for `name' `,' `name'
            in exp1 do block end 

          | function funcname `(' [parlist1] `)'
            block end 

          | local declist [init] funcname ::= `name'
            | `name' `.' `name' | `name'
            `:' `name'
varlist1 ::= var {`,' var}
var ::= `name' | varorfunc `[' exp1 `]'
        | varorfunc `.' `name'
varorfunc ::= var | functioncall
declist ::= `name' {`,' `name'}
init ::= `=' explist1
explist1 ::= {exp1 `,'} exp
exp1 ::= exp
exp ::= nil | `number' | `literal' | var
        | function | upvalue 
 | functioncall | tableconstructor
        | `(' exp `)' | exp binop exp | unop exp
functioncall ::= varorfunc args | varorfunc `:' `name' args
args ::= `(' [explist1] `)' | tableconstructor
         | `literal'
function ::= function `(' [parlist1] `)'
             block end
parlist1 ::= `...' | `name' {`,'
             `name'} [`,' `...']
upvalue ::= `%' `name'
tableconstructor ::= `{' fieldlist `}'
fieldlist ::= lfieldlist | ffieldlist | lfieldlist `;'
              ffieldlist | ffieldlist `;' lfieldlist
lfieldlist ::= [lfieldlist1]
ffieldlist ::= [ffieldlist1]
lfieldlist1 ::= exp {`,' exp} [`,']
ffieldlist1 ::= ffield {`,' ffield} [`,']
ffield ::= `[' exp `]' `=' exp
           | `name' `=' exp
binop ::= `+' | `-' | `*' | `/'
            | `\^{ ' | `..' 

          | `<' | `<=' | `>'
            | `>=' | `==' | `\ { '=} 

          | and | or}
unop ::= `-' | not