debian-3.17.1: Modules for working with the Debian package system Source code Contents Index

Debian.Control.Common

Contents Types

Synopsis

newtype Control' a = Control { unControl :: [Paragraph' a] } newtype Paragraph' a = Paragraph [Field' a] data Field' a = Field (a, a) | Comment a class ControlFunctions a where parseControlFromFile :: FilePath -> IO (Either ParseError (Control' a)) parseControlFromHandle :: String -> Handle -> IO (Either ParseError (Control' a)) parseControl :: String -> a -> Either ParseError (Control' a) lookupP :: String -> Paragraph' a -> Maybe (Field' a) stripWS :: a -> a asString :: a -> String mergeControls :: [Control' a] -> Control' a fieldValue :: ControlFunctions a => String -> Paragraph' a -> Maybe a removeField :: Eq a => a -> Paragraph' a -> Paragraph' a prependFields :: [Field' a] -> Paragraph' a -> Paragraph' a appendFields :: [Field' a] -> Paragraph' a -> Paragraph' a renameField :: Eq a => a -> a -> Paragraph' a -> Paragraph' a modifyField :: Eq a => a -> (a -> a) -> Paragraph' a -> Paragraph' a raiseFields :: Eq a => (a -> Bool) -> Paragraph' a -> Paragraph' a parseControlFromCmd :: ControlFunctions a => String -> IO (Either String (Control' a)) md5sumField :: ControlFunctions a => Paragraph' a -> Maybe a

Types

newtype Control' a Source

Constructors Control unControl :: [Paragraph' a] Instances Show (Control' String)

newtype Paragraph' a Source

Constructors Paragraph [Field' a] Instances Show (Paragraph' String)

data Field' a Source

NOTE: we do not strip the leading or trailing whitespace in the name or value Constructors Field (a, a) Comment a Instances Eq a => Eq (Field' a) Show (Field' String)

class ControlFunctions a where Source

Methods parseControlFromFile :: FilePath -> IO (Either ParseError (Control' a)) Source parseControlFromFile filepath is a simple wrapper function that parses filepath using pControl parseControlFromHandle :: String -> Handle -> IO (Either ParseError (Control' a)) Source parseControlFromHandle sourceName handle - sourceName is only used for error reporting parseControl :: String -> a -> Either ParseError (Control' a) Source parseControlFromString sourceName text - sourceName is only used for error reporting lookupP :: String -> Paragraph' a -> Maybe (Field' a) Source lookupP fieldName paragraph looks up a Field in a Paragraph. N.B. trailing and leading whitespace is not stripped. stripWS :: a -> a Source Strip the trailing and leading space and tab characters from a string. Folded whitespace is not unfolded. This should probably be moved to someplace more general purpose. asString :: a -> String Source Instances ControlFunctions String ControlFunctions ByteString

mergeControls :: [Control' a] -> Control' a Source

fieldValue :: ControlFunctions a => String -> Paragraph' a -> Maybe a Source

removeField :: Eq a => a -> Paragraph' a -> Paragraph' a Source

prependFields :: [Field' a] -> Paragraph' a -> Paragraph' a Source

appendFields :: [Field' a] -> Paragraph' a -> Paragraph' a Source

renameField :: Eq a => a -> a -> Paragraph' a -> Paragraph' a Source

modifyField :: Eq a => a -> (a -> a) -> Paragraph' a -> Paragraph' a Source

raiseFields :: Eq a => (a -> Bool) -> Paragraph' a -> Paragraph' a Source

Move selected fields to the beginning of a paragraph.

parseControlFromCmd :: ControlFunctions a => String -> IO (Either String (Control' a)) Source

Run a command and parse its output as a control file.

md5sumField :: ControlFunctions a => Paragraph' a -> Maybe a Source

look up the md5sum file in a paragraph Tries several different variations: MD5Sum: Md5Sum: MD5sum:

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