Regex.RE2
data Pattern
compile
compileWith
patternInput
patternOptions
patternGroups
data Options
defaultOptions
data Encoding
optionEncoding
optionPosixSyntax
optionLongestMatch
optionMaxMemory
optionLiteral
optionNeverNewline
optionNeverCapture
optionCaseSensitive
optionPerlClasses
optionWordBoundary
optionOneLine
data Error
data ErrorCode
errorMessage
errorCode
data Match
matchGroup
matchGroups
data Anchor
match
find
replace
replaceAll
extract
quoteMeta