Hoogle Search

Within LTS Haskell 24.51 (ghc-9.10.3)

Note that Stackage only displays results for the latest LTS and Nightly snapshot. Learn more.

Exact lookup

1. singEnumInstance :: OptionsMonad q => Name -> q [Dec]

   singletons-th	Data.Singletons.TH

   Create instance of SEnum for the given type

2. singEnumInstances :: OptionsMonad q => [Name] -> q [Dec]

   singletons-th	Data.Singletons.TH

   Create instances of SEnum for the given types

3. DecimalNumber :: GeneralCategory

   speculate	Test.Speculate.Utils

   Nd: Number, Decimal

4. LetterNumber :: GeneralCategory

   speculate	Test.Speculate.Utils

   Nl: Number, Letter

5. OtherNumber :: GeneralCategory

   speculate	Test.Speculate.Utils

   No: Number, Other

6. isAlphaNum :: Char -> Bool

   speculate	Test.Speculate.Utils

   Selects alphabetic or numeric Unicode characters. Note that numeric digits outside the ASCII range, as well as numeric characters which aren't digits, are selected by this function but not by isDigit. Such characters may be part of identifiers but are not used by the printer and reader to represent numbers, e.g., Roman numerals like V, full-width digits like '１' (aka '65297'). This function returns True if its argument has one of the following GeneralCategorys, or False otherwise:

   • UppercaseLetter
   • LowercaseLetter
   • TitlecaseLetter
   • ModifierLetter
   • OtherLetter
   • DecimalNumber
   • LetterNumber
   • OtherNumber

7. isNumber :: Char -> Bool

   speculate	Test.Speculate.Utils

   Selects Unicode numeric characters, including digits from various scripts, Roman numerals, et cetera. This function returns True if its argument has one of the following GeneralCategorys, or False otherwise:

   • DecimalNumber
   • LetterNumber
   • OtherNumber
   These classes are defined in the Unicode Character Database, part of the Unicode standard. The same document defines what is and is not a "Number".

   Examples

   Basic usage:

   >>> isNumber 'a'
   False
   
   >>> isNumber '%'
   False
   
   >>> isNumber '3'
   True
   

   ASCII '0' through '9' are all numbers:

   >>> and $ map isNumber ['0'..'9']
   True
   

   Unicode Roman numerals are "numbers" as well:

   >>> isNumber 'Ⅸ'
   True
   

8. isAlphaNum :: Char -> Bool

   text-latin1	Text.Ascii

   Test if a character is either an ASCII letter or a decimal digit.

9. isAlphaNum8 :: Word8 -> Bool

   text-latin1	Text.Ascii

   Test if a byte is the encoding of either an ASCII letter or a decimal digit.

10. isAlphaNum :: Char -> Bool

    text-latin1	Text.Latin1

    Test if a character is either a Latin-1 letter or a decimal digit.

Page 361 of many | Previous | Next