| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Text.Printer.Fractional
Description
Print fractions.
Synopsis
- class PositionalSystem s where
- systemName :: s -> String
- radixIn :: Num α => s -> α
- isDigitIn :: s -> Char -> Bool
- isNzDigitIn :: s -> Char -> Bool
- fromDigitIn :: Num α => s -> Char -> Maybe α
- fromNzDigitIn :: Num α => s -> Char -> Maybe α
- unsafeFromDigitIn :: Num α => s -> Char -> α
- intToDigitIn :: s -> Int -> Char
- printDigitIn :: Printer p => s -> Char -> p
- printZeroIn :: Printer p => s -> p
- class PositionalSystem s => BitSystem s where
- digitBitsIn :: s -> Int
- digitMaskIn :: Num α => s -> α
- lastDigitIn :: Bits α => s -> α -> Int
- data Binary = Binary
- data Octal = Octal
- data Decimal = Decimal
- data Hexadecimal = Hexadecimal
- data LowHex = LowHex
- data UpHex = UpHex
- data Optional
- isOptional :: Optional -> Bool
- isRequired :: Optional -> Bool
- fraction' :: (PositionalSystem s, Real α, Printer p) => s -> p -> p -> p -> p -> Optional -> α -> p
- fraction :: (Real α, Printer p) => α -> p
Positional numeral systems
class PositionalSystem s where #
Positional numeral system.
Minimal complete definition
systemName, radixIn, isDigitIn, isNzDigitIn, fromDigitIn, fromNzDigitIn, unsafeFromDigitIn, intToDigitIn
Methods
systemName :: s -> String #
The name of the system (e.g. "binary", "decimal").
The radix of the system.
isDigitIn :: s -> Char -> Bool #
Test if a character is a digit.
isNzDigitIn :: s -> Char -> Bool #
Test if a character is a non-zero digit.
fromDigitIn :: Num α => s -> Char -> Maybe α #
Map digits to the corresponding numbers. Return Nothing on
other inputs.
fromNzDigitIn :: Num α => s -> Char -> Maybe α #
Map non-zero digits to the corresponding numbers. Return Nothing on
other inputs.
unsafeFromDigitIn :: Num α => s -> Char -> α #
Map digits to the corresponding numbers. No checks are performed.
intToDigitIn :: s -> Int -> Char #
Map Int values to the corresponding digits. Inputs must be
non-negative and less than the radix.
printDigitIn :: Printer p => s -> Char -> p #
Print a digit.
printZeroIn :: Printer p => s -> p #
Instances
class PositionalSystem s => BitSystem s where #
Positonal numeral system with a power of two radix.
Methods
digitBitsIn :: s -> Int #
Numer of bits occupied by a digit.
digitMaskIn :: Num α => s -> α #
The number that has digitBitsIn least significant bits set to ones
and all the other bits set to zeroes.
lastDigitIn :: Bits α => s -> α -> Int #
Map the last digit of a number to the corresponding Int value.
Instances
| BitSystem UpHex # | |
Defined in Text.Printer.Integral Methods digitBitsIn :: UpHex -> Int # digitMaskIn :: Num α => UpHex -> α # lastDigitIn :: Bits α => UpHex -> α -> Int # | |
| BitSystem LowHex # | |
Defined in Text.Printer.Integral Methods digitBitsIn :: LowHex -> Int # digitMaskIn :: Num α => LowHex -> α # lastDigitIn :: Bits α => LowHex -> α -> Int # | |
| BitSystem Hexadecimal # | |
Defined in Text.Printer.Integral Methods digitBitsIn :: Hexadecimal -> Int # digitMaskIn :: Num α => Hexadecimal -> α # lastDigitIn :: Bits α => Hexadecimal -> α -> Int # | |
| BitSystem Octal # | |
Defined in Text.Printer.Integral Methods digitBitsIn :: Octal -> Int # digitMaskIn :: Num α => Octal -> α # lastDigitIn :: Bits α => Octal -> α -> Int # | |
| BitSystem Binary # | |
Defined in Text.Printer.Integral Methods digitBitsIn :: Binary -> Int # digitMaskIn :: Num α => Binary -> α # lastDigitIn :: Bits α => Binary -> α -> Int # | |
The binary numeral system.
Constructors
| Binary |
Instances
| Eq Binary # | |
| Ord Binary # | |
| Read Binary # | |
| Show Binary # | |
| Generic Binary # | |
| BitSystem Binary # | |
Defined in Text.Printer.Integral Methods digitBitsIn :: Binary -> Int # digitMaskIn :: Num α => Binary -> α # lastDigitIn :: Bits α => Binary -> α -> Int # | |
| PositionalSystem Binary # | |
Defined in Text.Printer.Integral Methods systemName :: Binary -> String # radixIn :: Num α => Binary -> α # isDigitIn :: Binary -> Char -> Bool # isNzDigitIn :: Binary -> Char -> Bool # fromDigitIn :: Num α => Binary -> Char -> Maybe α # fromNzDigitIn :: Num α => Binary -> Char -> Maybe α # unsafeFromDigitIn :: Num α => Binary -> Char -> α # intToDigitIn :: Binary -> Int -> Char # printDigitIn :: Printer p => Binary -> Char -> p # printZeroIn :: Printer p => Binary -> p # | |
| type Rep Binary # | |
The octal numeral system.
Constructors
| Octal |
Instances
| Eq Octal # | |
| Ord Octal # | |
| Read Octal # | |
| Show Octal # | |
| Generic Octal # | |
| BitSystem Octal # | |
Defined in Text.Printer.Integral Methods digitBitsIn :: Octal -> Int # digitMaskIn :: Num α => Octal -> α # lastDigitIn :: Bits α => Octal -> α -> Int # | |
| PositionalSystem Octal # | |
Defined in Text.Printer.Integral Methods systemName :: Octal -> String # radixIn :: Num α => Octal -> α # isDigitIn :: Octal -> Char -> Bool # isNzDigitIn :: Octal -> Char -> Bool # fromDigitIn :: Num α => Octal -> Char -> Maybe α # fromNzDigitIn :: Num α => Octal -> Char -> Maybe α # unsafeFromDigitIn :: Num α => Octal -> Char -> α # intToDigitIn :: Octal -> Int -> Char # printDigitIn :: Printer p => Octal -> Char -> p # printZeroIn :: Printer p => Octal -> p # | |
| type Rep Octal # | |
The decimal numeral system.
Constructors
| Decimal |
Instances
| Eq Decimal # | |
| Ord Decimal # | |
Defined in Text.Printer.Integral | |
| Read Decimal # | |
| Show Decimal # | |
| Generic Decimal # | |
| PositionalSystem Decimal # | |
Defined in Text.Printer.Integral Methods systemName :: Decimal -> String # radixIn :: Num α => Decimal -> α # isDigitIn :: Decimal -> Char -> Bool # isNzDigitIn :: Decimal -> Char -> Bool # fromDigitIn :: Num α => Decimal -> Char -> Maybe α # fromNzDigitIn :: Num α => Decimal -> Char -> Maybe α # unsafeFromDigitIn :: Num α => Decimal -> Char -> α # intToDigitIn :: Decimal -> Int -> Char # printDigitIn :: Printer p => Decimal -> Char -> p # printZeroIn :: Printer p => Decimal -> p # | |
| type Rep Decimal # | |
data Hexadecimal #
The hexadecimal numeral system.
Constructors
| Hexadecimal |
Instances
The hexadecimal numeral system, using lower case digits.
Constructors
| LowHex |
Instances
| Eq LowHex # | |
| Ord LowHex # | |
| Read LowHex # | |
| Show LowHex # | |
| Generic LowHex # | |
| BitSystem LowHex # | |
Defined in Text.Printer.Integral Methods digitBitsIn :: LowHex -> Int # digitMaskIn :: Num α => LowHex -> α # lastDigitIn :: Bits α => LowHex -> α -> Int # | |
| PositionalSystem LowHex # | |
Defined in Text.Printer.Integral Methods systemName :: LowHex -> String # radixIn :: Num α => LowHex -> α # isDigitIn :: LowHex -> Char -> Bool # isNzDigitIn :: LowHex -> Char -> Bool # fromDigitIn :: Num α => LowHex -> Char -> Maybe α # fromNzDigitIn :: Num α => LowHex -> Char -> Maybe α # unsafeFromDigitIn :: Num α => LowHex -> Char -> α # intToDigitIn :: LowHex -> Int -> Char # printDigitIn :: Printer p => LowHex -> Char -> p # printZeroIn :: Printer p => LowHex -> p # | |
| type Rep LowHex # | |
The hexadecimal numeral system, using upper case digits.
Constructors
| UpHex |
Instances
| Eq UpHex # | |
| Ord UpHex # | |
| Read UpHex # | |
| Show UpHex # | |
| Generic UpHex # | |
| BitSystem UpHex # | |
Defined in Text.Printer.Integral Methods digitBitsIn :: UpHex -> Int # digitMaskIn :: Num α => UpHex -> α # lastDigitIn :: Bits α => UpHex -> α -> Int # | |
| PositionalSystem UpHex # | |
Defined in Text.Printer.Integral Methods systemName :: UpHex -> String # radixIn :: Num α => UpHex -> α # isDigitIn :: UpHex -> Char -> Bool # isNzDigitIn :: UpHex -> Char -> Bool # fromDigitIn :: Num α => UpHex -> Char -> Maybe α # fromNzDigitIn :: Num α => UpHex -> Char -> Maybe α # unsafeFromDigitIn :: Num α => UpHex -> Char -> α # intToDigitIn :: UpHex -> Int -> Char # printDigitIn :: Printer p => UpHex -> Char -> p # printZeroIn :: Printer p => UpHex -> p # | |
| type Rep UpHex # | |
Optionality characteristic
Optionality characteristic.
Instances
| Bounded Optional # | |
| Enum Optional # | |
Defined in Text.Printer.Fractional | |
| Eq Optional # | |
| Ord Optional # | |
Defined in Text.Printer.Fractional | |
| Read Optional # | |
| Show Optional # | |
| Ix Optional # | |
Defined in Text.Printer.Fractional | |
| Generic Optional # | |
| type Rep Optional # | |
isOptional :: Optional -> Bool #
True if the supplied value is Optional and false otherwise.
isRequired :: Optional -> Bool #
True if the supplied value is Required and false otherwise.
Fraction printers
Arguments
| :: (PositionalSystem s, Real α, Printer p) | |
| => s | |
| -> p | Prefix for negative values |
| -> p | Zero printer |
| -> p | Prefix for positive values |
| -> p | Numerator/denominator separator |
| -> Optional | Whether to print invisible denominators |
| -> α | |
| -> p |
Print a fraction, writing the numerator and the denominator in the specified positional numeral system.