Text.RE.Tools.Grep

Documentation

grep :: IsRegex re ByteString => Verbosity -> re -> FilePath -> IO ()

operates a bit like classic grep printing out the lines matched

data Line

grepLines returns a Line for each line in the file, listing all of the Matches for that line

Constructors

Line

Fields

• getLineNumber :: LineNo

  the LineNo for this line

• getLineMatches :: Matches ByteString

  all the Matches of the RE on this line

Instances

Show Line

Methods

showsPrec :: Int -> Line -> ShowS

show :: Line -> String

showList :: [Line] -> ShowS

grepLines :: IsRegex re ByteString => re -> FilePath -> IO [Line]

returns a Line for each line in the file enumerating all of the matches for that line.

type GrepScript re s t = [(re, LineNo -> Matches s -> Maybe t)]

a GrepScript lists RE-action associations, with the first RE to match a line selecting the action to be executed on each line in the file

grepScript :: IsRegex re s => GrepScript re s t -> [s] -> [t]

given a list of lines, apply the GrepScript to each line of the file

report :: Verbosity -> [Line] -> String

generate a grep report from a list of Line

data Verbosity

specifies whether to return the linss matched or missed

Constructors

LinesMatched

LinesNotMatched

Instances

Eq Verbosity

Methods

(==) :: Verbosity -> Verbosity -> Bool

(/=) :: Verbosity -> Verbosity -> Bool

Ord Verbosity

Methods

compare :: Verbosity -> Verbosity -> Ordering

(<) :: Verbosity -> Verbosity -> Bool

(<=) :: Verbosity -> Verbosity -> Bool

(>) :: Verbosity -> Verbosity -> Bool

(>=) :: Verbosity -> Verbosity -> Bool

max :: Verbosity -> Verbosity -> Verbosity

min :: Verbosity -> Verbosity -> Verbosity

Show Verbosity

Methods

showsPrec :: Int -> Verbosity -> ShowS

show :: Verbosity -> String

showList :: [Verbosity] -> ShowS

linesMatched :: Verbosity -> [Line] -> [Line]

given a velocity flag filter out either the lines matched or not matched

IsRegex

class Replace s => IsRegex re s where

Minimal complete definition

matchOnce, matchMany, makeRegex, makeRegexWith, regexSource

Methods

matchOnce :: re -> s -> Match s

matchMany :: re -> s -> Matches s

makeRegex :: (Functor m, Monad m) => s -> m re

makeRegexWith :: (Functor m, Monad m) => SimpleRegexOptions -> s -> m re

regexSource :: re -> s

LineNo

newtype LineNo

Constructors

ZeroBasedLineNo

Fields

• getZeroBasedLineNo :: Int

Instances

Enum LineNo

Methods

succ :: LineNo -> LineNo

pred :: LineNo -> LineNo

toEnum :: Int -> LineNo

fromEnum :: LineNo -> Int

enumFrom :: LineNo -> [LineNo]

enumFromThen :: LineNo -> LineNo -> [LineNo]

enumFromTo :: LineNo -> LineNo -> [LineNo]

enumFromThenTo :: LineNo -> LineNo -> LineNo -> [LineNo]

Show LineNo

Methods

showsPrec :: Int -> LineNo -> ShowS

show :: LineNo -> String

showList :: [LineNo] -> ShowS

firstLine :: LineNo

getLineNo :: LineNo -> Int

lineNo :: Int -> LineNo

Text.RE

module Text.RE