word8-0.1.2: Word8 library

Safe Haskell | None
Language | Haskell2010

Data.Char8

Contents

- Character classification
- Subranges
- Case conversion

Description

Char8 library to be used with Data.ByteString.Char8. All function assumes that only 8bit part of `Char` is used and it is encoded in Latin-1 (ISO-8859-1). All utility functions are supposed to work as if those of `Char`. Exceptions are described in the function documentations.

Base library 4.7 (GHC 7.8) or earlier is based on Unicode 6. Base library 4.8 (GHC 7.10) or later is based on Unicode 7. `isLower`, `isSymbol` and `isPunctuation` behave differently.

Synopsis

- isControl :: Char -> Bool
- isSpace :: Char -> Bool
- isLower :: Char -> Bool
- isUpper :: Char -> Bool
- isAlpha :: Char -> Bool
- isAlphaNum :: Char -> Bool
- isPrint :: Char -> Bool
- isDigit :: Char -> Bool
- isOctDigit :: Char -> Bool
- isHexDigit :: Char -> Bool
- isLetter :: Char -> Bool
- isMark :: Char -> Bool
- isNumber :: Char -> Bool
- isPunctuation :: Char -> Bool
- isSymbol :: Char -> Bool
- isSeparator :: Char -> Bool
- isAscii :: Char -> Bool
- isLatin1 :: Char -> Bool
- isAsciiUpper :: Char -> Bool
- isAsciiLower :: Char -> Bool
- toUpper :: Char -> Char
- toLower :: Char -> Char
- toTitle :: Char -> Char

# Character classification

isControl :: Char -> Bool Source

isSpace :: Char -> Bool Source

isLower :: Char -> Bool Source

This function returns `True` for 170 and 186 in Unicode 6. But it returns `False` in Unicode 7.

isUpper :: Char -> Bool Source

isAlpha :: Char -> Bool Source

isAlphaNum :: Char -> Bool Source

isPrint :: Char -> Bool Source

isDigit :: Char -> Bool Source

isOctDigit :: Char -> Bool Source

isHexDigit :: Char -> Bool Source

isLetter :: Char -> Bool Source

isMark :: Char -> Bool Source

isNumber :: Char -> Bool Source

isPunctuation :: Char -> Bool Source

This function returns `False` for 167 and 182 in Unicode 6. But it returns `True` in Unicode 7.

isSymbol :: Char -> Bool Source

This function returns `True` for 167 and 182 in Unicode 6. But it returns `False` in Unicode 7.

isSeparator :: Char -> Bool Source

# Subranges

isAscii :: Char -> Bool Source

isLatin1 :: Char -> Bool Source

isAsciiUpper :: Char -> Bool Source

isAsciiLower :: Char -> Bool Source

# Case conversion

toUpper :: Char -> Char Source

Micro sign/mu (0xb5) and small letter Y with diaeresis (0xff) remain the same.

toLower :: Char -> Char Source

toTitle :: Char -> Char Source

Micro sign/mu (0xb5) and small letter Y with diaeresis (0xff) remain the same.