libraries/Char.elm · elk

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elk/libraries/Char.elm

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2module Char where

4{-| Functions for working with characters. Character literals are enclosed in

5`'a'` pair of single quotes.

7# Classification

8@docs isUpper, isLower, isDigit, isOctDigit, isHexDigit

10# Conversion

11@docs toUpper, toLower, toLocaleUpper, toLocaleLower, toCode, fromCode

15import Native.Char

17{-| True for upper case letters. -}

18isUpper : Char -> Bool

19isUpper = Native.Char.isUpper

21{-| True for lower case letters. -}

22isLower : Char -> Bool

23isLower = Native.Char.isLower

25{-| True for ASCII digits `[0-9]`. -}

26isDigit : Char -> Bool

27isDigit = Native.Char.isDigit

29{-| True for ASCII octal digits `[0-7]`. -}

30isOctDigit : Char -> Bool

31isOctDigit = Native.Char.isOctDigit

33{-| True for ASCII hexadecimal digits `[0-9a-fA-F]`. -}

34isHexDigit : Char -> Bool

35isHexDigit = Native.Char.isHexDigit

37{-| Convert to upper case. -}

38toUpper : Char -> Char

39toUpper = Native.Char.toUpper

41{-| Convert to lower case. -}

42toLower : Char -> Char

43toLower = Native.Char.toLower

45{-| Convert to upper case, according to any locale-specific case mappings. -}

46toLocaleUpper : Char -> Char

47toLocaleUpper = Native.Char.toLocaleUpper

49{-| Convert to lower case, according to any locale-specific case mappings. -}

50toLocaleLower : Char -> Char

51toLocaleLower = Native.Char.toLocaleLower

53type KeyCode = Int

55{-| Convert to unicode. Used with the [`Keyboard`](/docs/Keyboard.elm)

56library, which expects the input to be uppercase. -}

57toCode : Char -> KeyCode

58toCode = Native.Char.toCode

60{-| Convert from unicode. -}

61fromCode : KeyCode -> Char

62fromCode = Native.Char.fromCode