ghc-9.13: The GHC API

Safe Haskell	None
Language	GHC2021

GHC.Parser.Lexer.Interface

Contents

Helpers

Description

This module defines the types and functions necessary for an Alex-generated lexer.

https://haskell-alex.readthedocs.io/en/latest/api.html#

Synopsis

data AlexInput = AI !PsLoc !StringBuffer
alexGetByte :: AlexInput -> Maybe (Word8, AlexInput)
alexInputPrevChar :: AlexInput -> Char
alexGetChar :: AlexInput -> Maybe (Char, AlexInput)
adjustChar :: Char -> Word8

Documentation

data AlexInput Source #

Constructors

AI !PsLoc !StringBuffer

Instances

Instances details

Show AlexInput Source #
Instance details Defined in GHC.Parser.Lexer.Interface Methods showsPrec :: Int -> AlexInput -> ShowS # show :: AlexInput -> String # showList :: [AlexInput] -> ShowS #

alexGetByte :: AlexInput -> Maybe (Word8, AlexInput) Source #

alexInputPrevChar :: AlexInput -> Char Source #

Helpers

alexGetChar :: AlexInput -> Maybe (Char, AlexInput) Source #

adjustChar :: Char -> Word8 Source #