Language.Lua

Documentation

parseText :: Parsec [LTok] () a -> String -> Either ParseError a

Runs Lua lexer before parsing. Use parseText stat to parse statements, and parseText exp to parse expressions.

parseFile :: FilePath -> IO (Either ParseError Block)

Parse a Lua file. You can use parseText chunk to parse a file from a string.

llex :: String -> [LTok]

Lua lexer.

llexFile :: FilePath -> IO [LTok]

Run Lua lexer on a file.

stat :: Parser Stat

Statement parser.

exp :: Parser Exp

Expression parser.

chunk :: Parser Block

Lua file parser.

data Block

A block is list of statements with optional return statement.

Constructors

Block [Stat] (Maybe [Exp])

Instances

Eq Block

Show Block

LPretty Block

data Stat

Constructors

Assign [Var] [Exp]

var1, var2 .. = exp1, exp2 ..

FunCall FunCall

function call

Label Name

label for goto

Break

break

Goto Name

goto label

Do Block

do .. end

While Exp Block

while .. do .. end

Repeat Block Exp

repeat .. until ..

If [(Exp, Block)] (Maybe Block)

if .. then .. [elseif ..] [else ..] end

ForRange Name Exp Exp (Maybe Exp) Block

for x=start, end [, step] do .. end

ForIn [Name] [Exp] Block

for x in .. do .. end

FunAssign FunName FunBody

function <var> (..) .. end

LocalFunAssign Name FunBody

local function <var> (..) .. end

LocalAssign [Name] (Maybe [Exp])

local var1, var2 .. = exp1, exp2 ..

EmptyStat

;

Instances

Eq Stat

Show Stat

LPretty Stat

data Exp

Constructors

Nil

Bool Bool

Number String

String String

Vararg

...

EFunDef FunDef

function (..) .. end

PrefixExp PrefixExp

TableConst Table

table constructor

Binop Binop Exp Exp

binary operators, + - * ^ % .. < <= > >= == ~= and or

Unop Unop Exp

unary operators, - not #

Instances

Eq Exp

Show Exp

LPretty Exp

pprint :: LPretty a => a -> Doc