Can one define a data type that wraps values of only those types for which an instance of a particular multiparameter type class exists?
Here is code illustrating a problem:
If we bind two parsers and the second parser fails, does the string get parsed once?
So suppose this is a parser:
How to parse CFG with operators
Ok so I have this parser and data:
How to properly step through recursive parsing?
The code I have is this:
What’s the difference between placing a parser in its “box” vs using it without it? [duplicate]
This question already has an answer here: Applicative parser stuck in infinite loop (1 answer) Closed 2 hours ago. So this is my parser, and two functions to run a parser: data Parser a = MkParser (String -> Maybe (String, a)) unParser :: Parser a -> String -> Maybe (String, a) unParser (MkParser a) inp […]
Understanding bracket use in Haskell – Parser that depends on previous parser gives error when using brackets
Ok so I’m trying to learn Haskell.
How to use input string in a parser
I’m new to Haskell. This is my parser:
How do I do extensible state if only the extension needs to know its state?
I’m trying to write a game in haskell and i’d like to write it in a modular way. To simplify it, I have a GameState and functions that do GameState -> GameState.