chunk ::= {stat [`;´]} [laststat [`;´]]

	block ::= chunk

	stat ::=  varlist `=´ explist |
		 functioncall |
		 do block end |
		 while exp do block end |
		 repeat block until exp |
		 if exp then block {elseif exp then block} [else block] end |
		 for Name `=´ exp `,´ exp [`,´ exp] do block end |
		 for namelist in explist do block end |
		 function funcname funcbody |
		 local function Name funcbody |
		 local namelist [`=´ explist]

	laststat ::= return [explist] | break

	funcname ::= Name {`.´ Name} [`:´ Name]

	varlist ::= var {`,´ var}

	var ::=  Name | prefixexp `[´ exp `]´ | prefixexp `.´ Name

	namelist ::= Name {`,´ Name}

	explist ::= {exp `,´} exp

	exp ::=  nil | false | true | Number | String | `...´ | function |
		 prefixexp | tableconstructor | exp binop exp | unop exp

	prefixexp ::= var | functioncall | `(´ exp `)´

	functioncall ::=  prefixexp args | prefixexp `:´ Name args

	args ::=  `(´ [explist] `)´ | tableconstructor | String

	function ::= function funcbody

	funcbody ::= `(´ [parlist] `)´ block end

	parlist ::= namelist [`,´ `...´] | `...´

	tableconstructor ::= `{´ [fieldlist] `}´

	fieldlist ::= field {fieldsep field} [fieldsep]

	field ::= `[´ exp `]´ `=´ exp | Name `=´ exp | exp

	fieldsep ::= `,´ | `;´

	binop ::= `+´ | `-´ | `*´ | `/´ | `^´ | `%´ | `..´ |
		 `<´ | `<=´ | `>´ | `>=´ | `==´ | `~=´ |
		 and | or

	unop ::= `-´ | not | `#´
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