Standard imports and utilities which are useful everywhere, or needed low in the module hierarchy. This is the bottom of hledger's module graph.
- module Data.Char
- module Control.Monad
- module Data.List
- module Data.Maybe
- module Data.Ord
- module Data.Tree
- module Data.Time.Clock
- module Data.Time.Calendar
- module Data.Time.LocalTime
- module Debug.Trace
- underline :: String -> String
- unbracket :: String -> String
- concatTopPadded :: [String] -> String
- concatBottomPadded :: [String] -> String
- vConcatRightAligned :: [String] -> String
- padtop :: Int -> String -> String
- padbottom :: Int -> String -> String
- padleft :: Int -> String -> String
- padright :: Int -> String -> String
- cliptopleft :: Int -> Int -> String -> String
- fitto :: Int -> Int -> String -> String
- type PlatformString = String
- fromPlatformString :: PlatformString -> String
- toPlatformString :: String -> PlatformString
- error' :: String -> a
- userError' :: String -> IOError
- difforzero :: (Num a, Ord a) => a -> a -> a
- containsRegex :: String -> String -> Bool
- splitAtElement :: Eq a => a -> [a] -> [[a]]
- leaves :: Tree a -> [a]
- subtreeat :: Eq a => a -> Tree a -> Maybe (Tree a)
- subtreeinforest :: Eq a => a -> [Tree a] -> Maybe (Tree a)
- treeprune :: Int -> Tree a -> Tree a
- treemap :: (a -> b) -> Tree a -> Tree b
- treefilter :: (a -> Bool) -> Tree a -> Tree a
- treeany :: (a -> Bool) -> Tree a -> Bool
- showtree :: Show a => Tree a -> String
- showforest :: Show a => Forest a -> String
- strace :: Show a => a -> a
- ltrace :: Show a => String -> a -> a
- mtrace :: (Monad m, Show a) => a -> m a
- choice' :: [GenParser tok st a] -> GenParser tok st a
- parsewith :: Parser a -> String -> Either ParseError a
- parseWithCtx :: b -> GenParser Char b a -> String -> Either ParseError a
- fromparse :: Either ParseError a -> a
- nonspace :: GenParser Char st Char
- spacenonewline :: GenParser Char st Char
- restofline :: GenParser Char st String
- getCurrentLocalTime :: IO LocalTime
- tname :: Test -> String
- tflatten :: Test -> [Test]
- tfilter :: (Test -> Bool) -> Test -> Test
- is :: (Eq a, Show a) => a -> a -> Assertion
- assertParse :: Either ParseError a -> Assertion
- assertParseEqual :: (Show a, Eq a) => Either ParseError a -> a -> Assertion
- printParseError :: Show a => a -> IO ()
- isLeft :: Either a b -> Bool
- isRight :: Either a b -> Bool
- applyN :: Int -> (a -> a) -> a -> a
- module Text.Printf
- module Text.RegexPR
- module Test.HUnit
Documentation
module Data.Char
module Control.Monad
module Data.List
module Data.Maybe
module Data.Ord
module Data.Tree
module Data.Time.Clock
module Data.Time.Calendar
module Data.Time.LocalTime
module Debug.Trace
concatTopPadded :: [String] -> StringSource
Join multi-line strings as side-by-side rectangular strings of the same height, top-padded.
concatBottomPadded :: [String] -> StringSource
Join multi-line strings as side-by-side rectangular strings of the same height, bottom-padded.
vConcatRightAligned :: [String] -> StringSource
Compose strings vertically and right-aligned.
padtop :: Int -> String -> StringSource
Convert a multi-line string to a rectangular string top-padded to the specified height.
padbottom :: Int -> String -> StringSource
Convert a multi-line string to a rectangular string bottom-padded to the specified height.
padleft :: Int -> String -> StringSource
Convert a multi-line string to a rectangular string left-padded to the specified width.
padright :: Int -> String -> StringSource
Convert a multi-line string to a rectangular string right-padded to the specified width.
cliptopleft :: Int -> Int -> String -> StringSource
Clip a multi-line string to the specified width and height from the top left.
fitto :: Int -> Int -> String -> StringSource
Clip and pad a multi-line string to fill the specified width and height.
type PlatformString = StringSource
A platform string is a string value from or for the operating system, such as a file path or command-line argument (or environment variable's name or value ?). On some platforms (such as unix) these are not real unicode strings but have some encoding such as UTF-8. This alias does no type enforcement but aids code clarity.
fromPlatformString :: PlatformString -> StringSource
Convert a possibly encoded platform string to a real unicode string. We decode the UTF-8 encoding recommended for unix systems (cf http:www.dwheeler.comessaysfixing-unix-linux-filenames.html) and leave anything else unchanged.
toPlatformString :: String -> PlatformStringSource
Convert a unicode string to a possibly encoded platform string. On unix we encode with the recommended UTF-8 (cf http:www.dwheeler.comessaysfixing-unix-linux-filenames.html) and elsewhere we leave it unchanged.
userError' :: String -> IOErrorSource
A version of userError that's better at displaying unicode.
difforzero :: (Num a, Ord a) => a -> a -> aSource
containsRegex :: String -> String -> BoolSource
splitAtElement :: Eq a => a -> [a] -> [[a]]Source
subtreeat :: Eq a => a -> Tree a -> Maybe (Tree a)Source
get the sub-tree rooted at the first (left-most, depth-first) occurrence of the specified node value
subtreeinforest :: Eq a => a -> [Tree a] -> Maybe (Tree a)Source
get the sub-tree for the specified node value in the first tree in forest in which it occurs.
treefilter :: (a -> Bool) -> Tree a -> Tree aSource
remove all subtrees whose nodes do not fulfill predicate
showforest :: Show a => Forest a -> StringSource
show a compact ascii representation of a forest
strace :: Show a => a -> aSource
trace (print on stdout at runtime) a showable expression (for easily tracing in the middle of a complex expression)
mtrace :: (Monad m, Show a) => a -> m aSource
monadic trace - like strace, but works as a standalone line in a monad
choice' :: [GenParser tok st a] -> GenParser tok st aSource
trace an expression using a custom show function
parseWithCtx :: b -> GenParser Char b a -> String -> Either ParseError aSource
fromparse :: Either ParseError a -> aSource
restofline :: GenParser Char st StringSource
tfilter :: (Test -> Bool) -> Test -> TestSource
Filter TestLists in a Test, recursively, preserving the structure.
is :: (Eq a, Show a) => a -> a -> AssertionSource
Simple way to assert something is some expected value, with no label.
assertParse :: Either ParseError a -> AssertionSource
Assert a parse result is successful, printing the parse error on failure.
assertParseEqual :: (Show a, Eq a) => Either ParseError a -> a -> AssertionSource
Assert a parse result is some expected value, printing the parse error on failure.
printParseError :: Show a => a -> IO ()Source
applyN :: Int -> (a -> a) -> a -> aSource
Apply a function the specified number of times. Possibly uses O(n) stack ?
module Text.Printf
module Text.RegexPR
module Test.HUnit