Lua Sintaxes completas representadas por Diagrama Sintático - Diagrama de Sintaxe (ver convenções) ou BNF (ver convenções). Diagrama Sintático - Diagrama de Sintaxe | Diagrama Sintático - Diagrama de Sintaxe e BNF | BNF 1. lua lua : [(stat [';'])+] [(return [exp {',' exp}] | break ) [';']] 2. stat stat : var {',' var} '=' exp {',' exp} | functioncall | repeat block until exp | if exp then block [(elseif exp then block)+] [else block] end | [(for (Name '=' exp ',' exp [',' exp]|Name {',' Name} in exp {',' exp})|while exp)] do block end | function funcname funcbody | local function Name funcbody | local (Name {',' Name}) ['=' exp {',' exp}] 3. funcname funcname : Name {'.' Name} [':' Name] 4. var var : Name | prefixexp '[' exp ']' | prefixexp '.' Name 5. exp exp : nil | false | true | Number | String | '...' | function | prefixexp | tableconstructor | exp binop exp | unop exp 6. prefixexp prefixexp : var | functioncall | '(' exp ')' 7. functioncall functioncall : prefixexp [ ':' Name] '(' [exp {',' exp}] ')' | tableconstructor | String 8. function function : 'function' funcbody 9. funcbody funcbody : '(' [parlist] ')' block end 10. parlist parlist : namelist [',' '...'] | '...' 11. tableconstructor tableconstructor : '{' [([('[' exp ']' | Name) '='] exp (',' | ';'|''))+] '}' 12. binop binop : '+' | '-' | '*' | '/' | '^' | '%' | '..' | '<' | '<=' | '>' | '>=' | '==' | '~=' | and | or 13. unop unop : '-' | not | '#'