debian-1.2: A set of modules for working with debian control files and packages Contents Index

Linspire.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)) lookupP :: String -> Paragraph' a -> Maybe (Field' a) stripWS :: a -> a 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

Types

newtype Control' a

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

newtype Paragraph' a

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

data Field' a

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

class ControlFunctions a where

Methods parseControlFromFile :: FilePath -> IO (Either ParseError (Control' a)) parseControlFromFile filepath is a simple wrapper function that parses filepath using pControl parseControlFromHandle :: String -> Handle -> IO (Either ParseError (Control' a)) parseControlFromHandle sourceName handle - sourceName is only used for error reporting lookupP :: String -> Paragraph' a -> Maybe (Field' a) lookupP fieldName paragraph looks up a Field in a Paragraph. N.B. trailing and leading whitespace is not stripped. stripWS :: a -> a 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. Instances ControlFunctions ByteString ControlFunctions 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

Move selected fields to the beginning of a paragraph.

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