yi-language-0.2.0: Collection of language-related Yi libraries.

Safe HaskellNone
LanguageHaskell2010

Yi.Lexer.JavaScript

Synopsis

Documentation

initState :: HlState Source

alexScanToken :: (AlexState HlState, AlexInput) -> Maybe (Tok Token, (AlexState HlState, AlexInput)) Source

Scan one token. Return (maybe) a token and a new state.

tokenToStyle :: Token -> UIStyle -> Style Source

Takes a Token and returns a style to be used for that type of token.

TODO: The elem check is potentially unnecessarily slow. We could split the Const constructor into two different ones, one for builtins and one for others.

type TT = Tok Token Source

data Token Source

The different tokens.

Constructors

Unknown 
Res !Reserved 
Str !String 
Rex !String 
Op !Operator 
Special !Char 
Number !String 
ValidName !String 
Comment !CommentType 
Const !String 

Instances

data Reserved Source

The constructors for Reserved have an apostrophe as a suffix because Default is already used. Also note that Undefined' is not intended as some sort of "backup" reserved word for things we don't care about -- it really means the "undefined" built-in in JavaScript.

Constructors

Break' 
Case' 
Catch' 
Continue' 
Default' 
Delete' 
Do' 
Else' 
Finally' 
For' 
Function' 
If' 
In' 
InstanceOf' 
New' 
Return' 
Switch' 
This' 
Throw' 
Try' 
TypeOf' 
Var' 
Void' 
While' 
With' 
True' 
False' 
Null' 
Undefined' 

Instances

data Operator Source

The constructors for Operator have an apostrophe as a suffix because e.g. LT is already used by Prelude.

Constructors

Add' 
Subtract' 
Multiply' 
Divide' 
Modulo' 
Increment' 
Decrement' 
Assign' 
AddAssign' 
SubtractAssign' 
MultiplyAssign' 
DivideAssign' 
ModuloAssign' 
Equals' 
NotEquals' 
GT' 
GTE' 
LT' 
LTE' 
EqualsType' 
NotEqualsType' 
And' 
Or' 
Not' 
BitAnd' 
BitOr' 
BitXor' 
LeftShift' 
RightShift' 
RightShiftZ' 
BitNot' 
Qualify' 

Instances

type HlState = Int Source

HlState is 0 when outside of a multi-line comment and -1 when inside one.

prefixOperators :: [Operator] Source

Prefix operators. NOTE: Add' is also a valid prefix operator, but since it's completely useless in the real world, we don't care about it here. Doing this makes parsing much, much easier.

infixOperators :: [Operator] Source

Infix operators.

postfixOperators :: [Operator] Source

Postfix operators.