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Text.XML.HXT.DOM.Util

Portability | portable
Stability | stable
Maintainer | Uwe Schmidt (uwe@fh-wedel.de)

Description
Little useful things for strings, lists and other values
Synopsis

stringTrim :: String -> String
stringToLower :: String -> String
stringToUpper :: String -> String
stringAll :: Eq a => [a] -> [a] -> [Int]
stringFirst :: Eq a => [a] -> [a] -> Maybe Int
stringLast :: Eq a => [a] -> [a] -> Maybe Int
normalizeNumber :: String -> String
normalizeWhitespace :: String -> String
normalizeBlanks :: String -> String
escapeURI :: String -> String
textEscapeXml :: String -> String
stringEscapeXml :: String -> String
attrEscapeXml :: String -> String
stringToInt :: Int -> String -> Int
stringToHexString :: String -> String
charToHexString :: Char -> String
intToHexString :: Int -> String
hexStringToInt :: String -> Int
decimalStringToInt :: String -> Int
doubles :: Eq a => [a] -> [a]
singles :: Eq a => [a] -> [a]
noDoubles :: Eq a => [a] -> [a]
swap :: (a, b) -> (b, a)
partitionEither :: [Either a b] -> ([a], [b])
toMaybe :: Bool -> a -> Maybe a
uncurry3 :: (a -> b -> c -> d) -> (a, b, c) -> d
uncurry4 :: (a -> b -> c -> d -> e) -> (a, b, c, d) -> e

Documentation

stringTrim :: String -> String | Source

remove leading and trailing whitespace with standard Haskell predicate isSpace

stringToLower :: String -> String | Source

convert string to lowercase with standard Haskell toLower function

stringToUpper :: String -> String | Source

convert string to uppercase with standard Haskell toUpper function

stringAll :: Eq a => [a] -> [a] -> [Int] | Source

find all positions where a string occurs within another string

stringFirst :: Eq a => [a] -> [a] -> Maybe Int | Source

find the position of the first occurence of a string

stringLast :: Eq a => [a] -> [a] -> Maybe Int | Source

find the position of the last occurence of a string

normalizeNumber :: String -> String | Source

Removes leading / trailing whitespaces and leading zeros

normalizeWhitespace :: String -> String | Source

Reduce whitespace sequences to a single whitespace

normalizeBlanks :: String -> String | Source

replace all whitespace chars by blanks

escapeURI :: String -> String | Source

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

textEscapeXml :: String -> String | Source

escape XML chars &lt; and ampercent by transforming them into character references, used for escaping text nodes see also : `attrEscapeXml`

stringEscapeXml :: String -> String | Source

escape XML chars &lt;, &gt;, &quot;, and ampercent by transforming them into character references see also : `attrEscapeXml`

attrEscapeXml :: String -> String | Source

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

stringToInt :: Int -> String -> Int | Source

stringToHexString :: String -> String | Source

convert a string into a hexadecimal string applying charToHexString see also : `charToHexString`

charToHexString :: Char -> String | Source

convert a char (byte) into a 2-digit hexadecimal string see also : `stringToHexString`, `intToHexString`

intToHexString :: Int -> String | Source

convert a none negative Int into a hexadecimal string see also : `charToHexString`

hexStringToInt :: String -> Int | Source

convert a string of hexadecimal digits into an Int

decimalStringToInt :: String -> Int | Source

convert a string of digits into an Int

doubles :: Eq a => [a] -> [a] | Source

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

singles :: Eq a => [a] -> [a] | Source

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

noDoubles :: Eq a => [a] -> [a] | Source

remove duplicates from list

swap :: (a, b) -> (b, a) | Source

partitionEither :: [Either a b] -> ([a], [b]) | Source

toMaybe :: Bool -> a -> Maybe a | Source

uncurry3 :: (a -> b -> c -> d) -> (a, b, c) -> d | Source

mothers little helpers for to much curry

uncurry4 :: (a -> b -> c -> d -> e) -> (a, b, c, d) -> e | Source

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