Test.Tasty.Patterns.Parser

See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/awk.html for the full awk grammar.

Documentation

data Parser a

A separate Parser data type ensures that we don't forget to skip spaces.

Instances

Monad Parser

Methods

(>>=) :: Parser a -> (a -> Parser b) -> Parser b

(>>) :: Parser a -> Parser b -> Parser b

return :: a -> Parser a

fail :: String -> Parser a

Functor Parser

Methods

fmap :: (a -> b) -> Parser a -> Parser b

(<$) :: a -> Parser b -> Parser a

Applicative Parser

Methods

pure :: a -> Parser a

(<*>) :: Parser (a -> b) -> Parser a -> Parser b

liftA2 :: (a -> b -> c) -> Parser a -> Parser b -> Parser c

(*>) :: Parser a -> Parser b -> Parser b

(<*) :: Parser a -> Parser b -> Parser a

Alternative Parser

Methods

empty :: Parser a

(<|>) :: Parser a -> Parser a -> Parser a

some :: Parser a -> Parser [a]

many :: Parser a -> Parser [a]

MonadPlus Parser

Methods

mzero :: Parser a

mplus :: Parser a -> Parser a -> Parser a

runParser

Arguments

:: Parser a

-> String

text to parse

-> ParseResult a

Run a parser

data ParseResult a

Constructors

Success a

Invalid

Ambiguous [a]

Instances

Show a => Show (ParseResult a)

Methods

showsPrec :: Int -> ParseResult a -> ShowS

show :: ParseResult a -> String

showList :: [ParseResult a] -> ShowS

expr :: Parser Expr

The awk-like expression parser

parseAwkExpr :: String -> Maybe Expr

Parse an awk expression