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GHC 9.10.3 · lts/ghc-9.10.x · 248f8f0 · 2026-10-05

Modulehxt-9.3.1.22Haskell2010

Text.XML.HXT.DOM.Util

Little useful things for strings, lists and other values

27 values

Packagehxt-9.3.1.22
Exports27
LanguageHaskell2010
LicenceMIT
SourceUtil.hs

valuestringTrim :: String -> String

remove leading and trailing whitespace with standard Haskell predicate isSpace

valuestringToLower :: String -> String

convert string to lowercase with standard Haskell toLower function

valuestringToUpper :: String -> String

convert string to uppercase with standard Haskell toUpper function

valuestringAll :: Eq a => [a] -> [a] -> [Int]

find all positions where a string occurs within another string

valuestringFirst :: Eq a => [a] -> [a] -> Maybe Int

find the position of the first occurence of a string

valuestringLast :: Eq a => [a] -> [a] -> Maybe Int

find the position of the last occurence of a string

valuenormalizeNumber :: String -> String

Removes leading / trailing whitespaces and leading zeros

valuenormalizeWhitespace :: String -> String

Reduce whitespace sequences to a single whitespace

valuenormalizeBlanks :: String -> String

replace all whitespace chars by blanks

valueescapeURI :: String -> String

Escape all disallowed characters in URI references (see http://www.w3.org/TR/xlink/#link-locators)

valuetextEscapeXml :: String -> String

escape XML chars < and ampercent by transforming them into character references, used for escaping text nodes

see also : attrEscapeXml

valuestringEscapeXml :: String -> String

escape XML chars <, >, ", and ampercent by transforming them into character references

see also : attrEscapeXml

valueattrEscapeXml :: String -> String

escape XML chars in attribute values, same as stringEscapeXml, but none blank whitespace is also escaped

see also : stringEscapeXml

valuestringToInt :: Int -> String -> Int

valuestringToHexString :: String -> String

convert a string into a hexadecimal string applying charToHexString

see also : charToHexString

valuecharToHexString :: Char -> String

convert a char (byte) into a 2-digit hexadecimal string

see also : stringToHexString, intToHexString

valueintToHexString :: Int -> String

convert a none negative Int into a hexadecimal string

see also : charToHexString

valuehexStringToInt :: String -> Int

convert a string of hexadecimal digits into an Int

valuedecimalStringToInt :: String -> Int

convert a string of digits into an Int

valuedoubles :: Eq a => [a] -> [a]

take all elements of a list which occur more than once. The result does not contain doubles. (doubles . doubles == doubles)

valuesingles :: Eq a => [a] -> [a]

drop all elements from a list which occur more than once.

valuenoDoubles :: Eq a => [a] -> [a]

remove duplicates from list

valueswap :: (a, b) -> (b, a)

valuepartitionEither :: [Either a b] -> ([a], [b])

valuetoMaybe :: Bool -> a -> Maybe a

valueuncurry3 :: (a -> b -> c -> d) -> (a, b, c) -> d

mothers little helpers for to much curry

valueuncurry4 :: (a -> b -> c -> d -> e) -> (a, b, c, d) -> e