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Exported names:
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Imported modules:
Module ParseError
Result Monad for Parsers
Author: Jasper Sikorra - jsi@informatik.uni-kiel.de
Version: January 2014
Summary of exported operations:
err_unknown_msg
:: String 
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err_unknown_fname
:: String
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getPErrorPos
:: PError -> Pos
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getPErrorMsg
:: PError -> String
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perror
:: Pos -> String -> PError
Construct a PError |
okPR
:: a -> PR a
Return without errors |
throwPR
:: [PError] -> PR a
Return with errors |
bindPR
:: PR a -> (a -> PR b) -> PR b
Bind function |
escapePR
:: PR a -> ([PError] -> IO a) -> IO a
Escape the error monad, basically a catch |
liftPR
:: (a -> b) -> PR a -> PR b
Lift function |
throwUnknownPR
:: PR a
Throw an unknown error |
throwOnePR
:: PError -> PR a
Throw an error with one PError |
throwPMsg
:: Pos -> String -> PR a
Throw an error with one PError that has a position and message |
addErrorsPR
:: PR a -> [PError] -> PR a
Add a list of errors to the Error Monad |
addOneErrorPR
:: PR a -> PError -> PR a
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swapIOPR
:: PR (IO a) -> IO (PR a)
Swap the PR and the IO Monads |
fstPR
:: PR (a,b) -> PR a
fst defined on the Error Monad |
sndPR
:: PR (a,b) -> PR b
snd defined on the Error Monad |
crumplePR
:: PR (PR a) -> PR a
Crumple two Error Monads |
concatPR
:: PR [a] -> PR [a] -> PR [a]
Join two Error Monads |
combinePRs
:: (a -> b -> c) -> PR a -> PR b -> PR c
Combines two PRs by a given functions |
sequencePR
:: [PR a] -> PR [a]
Join multiple Error Monads into one |
Exported datatypes:
PR
The Error Monad
Constructors:
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OK :: a -> PR a -
Errors :: [PError] -> PR a
PError
Constructors:
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PError :: Pos -> String -> PError
Exported operations:
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Construct a PError
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Return without errors
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Return with errors
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Throw an unknown error
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Throw an error with one PError
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Throw an error with one PError that has a position and message
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Add a list of errors to the Error Monad |
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Join two Error Monads
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Combines two PRs by a given functions |
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Join multiple Error Monads into one |