Text.PercentFormat.Utils

This file is part of PercentFormat a library for printf-style string formatting.

This module provides miscellaneous utility functions.

Documentation

maybeRead :: Read a => String -> Maybe a

Reads a value encoded as a string, return Just the value or Nothing on error.

align :: Bool -> Char -> Int -> String -> String

rightAlign :: Char -> Int -> String -> String

rightAlign c w s aligns String s to the right in a field of width w using Char c as padding.

right ' ' 5 "123"

" 123"

leftAlign :: Char -> Int -> String -> String

left c w s aligns String s to the left in a field of width w using Char c as padding.

left ' ' 5 "123"

"123 "

showWithBase :: Integral a => Int -> a -> String

showWithBase b n returns a string representation of n in base b.

showWithBase 2 10

"1010" > showWithBase 16 49406 "c0f3" > showWithBase 10 (-1234) "-1234"

applyWhen :: Bool -> (a -> a) -> a -> a

intsToDigits :: [Int] -> String

theLast :: Int -> [a] -> [a]

loop :: [a] -> [a]

Like cycle, but return an empty list when the source list is empty.

none :: (a -> Bool) -> [a] -> Bool

integerToDigits :: Integral a => Int -> a -> [Int]

Given an integer, returns a list of digits. Signal is ignored.