Haskell Hierarchical Libraries (regex-base package)ContentsIndex
Text.Regex.Base.Impl
Portability non-portable (Text.Regex.Base needs MPTC+FD)
Stability experimental
Maintainer libraries@haskell.org, textregexlazy@personal.mightyreason.com
Description

Helper functions for defining certain instances of RegexContext. These help when defining instances of RegexContext with repeated types:

instance (RegexLike regex source) => RegexContext regex source source where

runs into overlapping restrictions. To avoid this I have each backend define, for its own Regex type:

instance RegexContext Regex String String where
match = polymatch
matchM = polymatchM
instance RegexContext Regex ByteString ByteString where
match = polymatch
matchM = polymatchM
Synopsis
polymatch :: RegexLike a b => a -> b -> b
polymatchM :: (RegexLike a b, Monad m) => a -> b -> m b
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