Documentation

Arguments

:: String	The input stream (Javascript source code).
-> String	The name of the Javascript source (filename or input device).
-> Either ParseError JSNode	An error or maybe the abstract syntax tree (AST) of zero or more Javascript statements, plus comments.

Parse one compound statement, or a sequence of simple statements. Generally used for interactive input, such as from the command line of an interpreter. Return comments in addition to the parsed statements.

readJs :: String -> JSNode Source

parseFile :: FilePath -> IO JSNode Source

data JSNode Source

Constructors

JSArguments [[JSNode]]
JSArrayLiteral [JSNode]
JSBlock JSNode
JSBreak [JSNode] [JSNode]
JSCallExpression String [JSNode]
JSCase JSNode JSNode
JSCatch JSNode [JSNode] JSNode
JSContinue [JSNode]
JSDecimal String
JSDefault JSNode
JSDoWhile JSNode JSNode JSNode
JSElement String [JSNode]
JSElementList [JSNode]
JSElision [JSNode]
JSEmpty JSNode
JSExpression [JSNode]
JSExpressionBinary String [JSNode] [JSNode]
JSExpressionParen JSNode
JSExpressionPostfix String [JSNode]
JSExpressionTernary [JSNode] [JSNode] [JSNode]
JSFinally JSNode
JSFor [JSNode] [JSNode] [JSNode] JSNode
JSForIn [JSNode] JSNode JSNode
JSForVar [JSNode] [JSNode] [JSNode] JSNode
JSForVarIn JSNode JSNode JSNode
JSFunction JSNode [JSNode] JSNode
JSFunctionBody [JSNode]
JSFunctionExpression [JSNode] JSNode
JSHexInteger String
JSIdentifier String
JSIf JSNode JSNode
JSIfElse JSNode JSNode JSNode
JSLabelled JSNode JSNode
JSLiteral String
JSMemberDot [JSNode] JSNode
JSMemberSquare [JSNode] JSNode
JSObjectLiteral [JSNode]
JSOperator String
JSPropertyNameandValue JSNode [JSNode]
JSRegEx String
JSReturn [JSNode]
JSSourceElements [JSNode]
JSSourceElementsTop [JSNode]
JSStatementList [JSNode]
JSStringLiteral Char [Char]
JSSwitch JSNode [JSNode]
JSThrow JSNode
JSTry JSNode [JSNode]
JSUnary String
JSVarDecl JSNode [JSNode]
JSVariables String [JSNode]
JSWhile JSNode JSNode
JSWith JSNode [JSNode]

Instances

Eq JSNode
Data JSNode
Read JSNode
Show JSNode
Typeable JSNode

data ParseError Source

Constructors

UnexpectedToken Token	An error from the parser. Token found where it should not be. Note: tokens contain their own source span.
UnexpectedChar Char AlexPosn	An error from the lexer. Character found where it should not be.
StrError String	A generic error containing a string message. No source location.

Instances

Eq ParseError
Show ParseError
Error ParseError

data AlexPosn Source

Posn records the location of a token in the input text. It has three fields: the address (number of characters preceding the token), line number and column of a token within the file. start_pos gives the position of the start of the file and eof_pos a standard encoding for the end of file. move_pos calculates the new position after traversing a given character, assuming the usual eight character tab stops.

Instances

Eq AlexPosn
Show AlexPosn

type P a = StateT ParseState (Either ParseError) aSource

data ParseState Source

Constructors

ParseState
Fields alex_pos :: !AlexPosn alex_inp :: String alex_chr :: !Char alex_bytes :: [Byte] alex_scd :: !Int previousToken :: !Token comments :: [Token]