The Complete Syntax of Lua

  1.     chunk ::= {stat [`;´]}
  3.     block ::= chunk
  5.     stat ::=  varlist1 `=´ explist1 | functioncall | do block end | while exp do block end | repeat block until exp | if exp then block {elseif exp then block} [else block] end | return [explist1] | break | for Name `=´ exp `,´ exp [`,´ exp] do block end | for Name {`,´ Name} in explist1 do block end | function funcname funcbody | local function Name funcbody | local namelist [init] 
  7.     funcname ::= Name {`.´ Name} [`:´ Name]
  9.     varlist1 ::= var {`,´ var}
  11.     var ::=  Name | prefixexp `[´ exp `]´ | prefixexp `.´ Name 
  13.     namelist ::= Name {`,´ Name}
  15.     init ::= `=´ explist1
  17.     explist1 ::= {exp `,´} exp
  19.     exp ::=  nil | false | true | Number | Literal | function | prefixexp | tableconstructor | exp binop exp | unop exp 
  21.     prefixexp ::= var | functioncall | `(´ exp `)´
  23.     functioncall ::=  prefixexp args | prefixexp `:´ Name args 
  25.     args ::=  `(´ [explist1] `)´ | tableconstructor | Literal 
  27.     function ::= function funcbody
  29.     funcbody ::= `(´ [parlist1] `)´ block end
  31.     parlist1 ::=  Name {`,´ Name} [`,´ `...´] | `...´ 
  33.     tableconstructor ::= `{´ [fieldlist] `}´
  34.     fieldlist ::= field {fieldsep field} [fieldsep]
  35.     field ::= `[´ exp `]´ `=´ exp | name `=´ exp | exp
  36.     fieldsep ::= `,´ | `;´
  38.     binop ::= `+´ | `-´ | `*´ | `/´ | `^´ | `..´ | `<´ | `<=´ | `>´ | `>=´ | `==´ | `~=´ | and | or
  40.     unop ::= `-´ | not

Last update: Thu Feb 12 22:01:01 BRST 2015