GHC 10.0.0.20260917 · lts/ghc-10.0.x · 8fef28d · 2026-11-02
Moduleregex-1.1.0.2Haskell2010
The Find toolkit traverses directory trees invoking actions for each file that matches a RE.
See the Regex Tools tutorial at http://re-tutorial-tools.regex.uk
as we don't want the directory and FilePath dependencies
we will abstract the three calls we need into this record type
FindMethodsdoesDirectoryExistDM :: s -> IO BooldoesDirectoryExist from System.Directory
listDirectoryDM :: s -> IO [s]either getDirectoryContents or listDirectory from System.Directory
combineDM :: s -> s -> s/ from System.FilePath
recursively list all files whose filename matches given RE, sorting the list into ascending order; if the argument path has a trailing / then it will be removed
findMatches_' :: IsRegex re s=> FindMethods sthe directory and filepath methods
-> ([s] -> [s])result post-processing function
-> (Match s -> Bool)filtering function
-> rere to be matched against the leaf filename
-> sroot directory of the search
-> IO [s]recursively list all files whose filename matches given RE, using the given function to determine which matches to accept
the IsRegex class allows polymorhic tools to be written that will work with a variety of regex back ends and text types
matchOnce :: re -> s -> Match sfinding the first match
matchMany :: re -> s -> Matches sfinding all matches
makeRegex :: (Functor m, Monad m, MonadFail m) => s -> m recompiling an RE, failing if the RE is not well formed
makeRegexWith :: (Functor m, Monad m, MonadFail m) => SimpleREOptions -> s -> m recomiling an RE, specifying the SimpleREOptions
makeSearchReplace :: (Functor m, Monad m, MonadFail m, IsRegex re s) => s -> s -> m (SearchReplace re s)compiling a SearchReplace template from the RE text and the template Text, failing if they are not well formed
makeSearchReplaceWith :: (Functor m, Monad m, MonadFail m, IsRegex re s) => SimpleREOptions -> s -> s -> m (SearchReplace re s)compiling a SearchReplace template specifying the SimpleREOptions for the RE
makeEscaped :: (Functor m, Monad m, MonadFail m) => (s -> s) -> s -> m reincorporate an escaped string into a compiled RE with the default options
makeEscapedWith :: (Functor m, Monad m, MonadFail m) => SimpleREOptions -> (s -> s) -> s -> m reincorporate an escaped string into a compiled RE with the specified SimpleREOptions
regexSource :: re -> sextract the text of the RE from the RE
IsRegex RE ByteStringDefined in regex-1.1.0.2 · Text.RE.TDFA.ByteString · orphanIsRegex RE ByteStringDefined in regex-1.1.0.2 · Text.RE.TDFA.ByteString.Lazy · orphanIsRegex RE StringDefined in regex-1.1.0.2 · Text.RE.TDFA.String · orphanIsRegex RE TextDefined in regex-1.1.0.2 · Text.RE.TDFA.Text · orphanIsRegex RE TextDefined in regex-1.1.0.2 · Text.RE.TDFA.Text.Lazy · orphanIsRegex RE (Seq Char)Defined in regex-1.1.0.2 · Text.RE.TDFA.Sequence · orphancontains a compiled RE and replacement template
SearchReplacegetSearch :: !rethe RE to match a string to replace
getTemplate :: !sthe replacement template with ${cap}
used to identify a capture (by number or
name if one was given) and $$ being
used to escape a single $
Functor (SearchReplace re)Defined in regex-1.1.0.2 · Text.RE.ZeInternals.Types.SearchReplace(Show re, Show s) => Show (SearchReplace re s)Defined in regex-1.1.0.2 · Text.RE.ZeInternals.Types.SearchReplacesearch and replace all matches in the argument text; e.g., this function will convert every YYYY-MM-DD format date in its argument text into a DD/MM/YYYY date:
searchReplaceAll [ed|${y}([0-9]{4})-0*${m}([0-9]{2})-0*${d}([0-9]{2})///${d}/${m}/${y}|]search and replace the first occurrence only (if any) in the input text
e.g., to prefix the first string of four hex digits in the imput text,
if any, with 0x:
searchReplaceFirst [ed|[0-9A-Fa-f]{4}///0x$0|]module Text.RE.Replace