Safe Haskell | None |
---|---|
Language | Haskell98 |
This is a POSIX version of parseRegex that allows NUL characters. Lazy/Possessive/Backrefs are not recognized. Anchors ^ and $ are recognized.
The PGroup returned always have (Maybe GroupIndex) set to (Just _) and never to Nothing.
- parseRegex :: String -> Either ParseError (Pattern, (GroupIndex, DoPa))
Documentation
parseRegex :: String -> Either ParseError (Pattern, (GroupIndex, DoPa)) Source
Return either an error message or a tuple of the Pattern and the
largest group index and the largest DoPa index (both have smallest
index of 1). Since the regular expression is supplied as [Char] it
automatically supports unicode and \NUL
characters.