cpchung chakpongchung
chakpongchung
/ Parser.hs
Created
April 10, 2020 17:31
— forked from dramforever/Parser.hs
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| module Parser where | |
| newtype Parser a = P { parse :: String -> [(a, String)] } | |
| instance Functor Parser where | |
| fmap g p = P (\inp -> case parse p inp of | |
| [] -> [] | |
| [(v, out)] -> [(g v, out)]) | |
| instance Applicative Parser where |
chakpongchung
/ Parser.hs
Created
April 10, 2020 17:31
— forked from dramforever/Parser.hs
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| module Parser where | |
| newtype Parser a = P { parse :: String -> [(a, String)] } | |
| instance Functor Parser where | |
| fmap g p = P (\inp -> case parse p inp of | |
| [] -> [] | |
| [(v, out)] -> [(g v, out)]) | |
| instance Applicative Parser where |