Moduleunicode-data-0.9.0Haskell2010

Unicode.Char.General.Compat

Compatibility module for general character property related functions.

The functions of this module are drop-in replacement for those in Data.Char. They are similar but not identical to some functions in Unicode.Char.General, therefore they are placed in a separate module in order to avoid ambiguity.

4 values

Packageunicode-data-0.9.0
Exports4
LanguageHaskell2010
LicenceApache-2.0
SourceCompat.hs

valueisAlpha :: Char -> Bool

Same as isLetter.

valueisAlphaNum :: Char -> Bool

Selects alphabetic or numeric Unicode characters.

This function returns True if its argument has one of the following GeneralCategorys, or False otherwise:

UppercaseLetter
LowercaseLetter
TitlecaseLetter
ModifierLetter
OtherLetter
DecimalNumber
LetterNumber
OtherNumber

Property

prop> isAlphaNum c == Data.Char.isAlphaNum c

Note: this function is incompatible with isAlphabetic:

Example2 expressions

>>> Unicode.Char.General.isAlphabetic '\x345'True>>> isAlphaNum '\x345'False

@since 0.6.0 moved to Compat module

valueisLetter :: Char -> Bool

Selects alphabetic Unicode characters (lower-case, upper-case and title-case letters, plus letters of caseless scripts and modifiers letters).

This function returns True if its argument has one of the following GeneralCategorys, or False otherwise:

UppercaseLetter
LowercaseLetter
TitlecaseLetter
ModifierLetter
OtherLetter

Note: this function is not equivalent to isAlphabetic. See the description of isAlphabetic for further details.

Property

prop> isLetter c == Data.Char.isLetter c

valueisSpace :: Char -> Bool

Selects Unicode space characters (general category Space), and the control characters \t, \n, \r, \f, \v.

Note: isSpace is not equivalent to isWhiteSpace. isWhiteSpace selects the same characters from isSpace plus the following:

U+0085 NEXT LINE (NEL)
U+2028 LINE SEPARATOR
U+2029 PARAGRAPH SEPARATOR

Property

prop> isSpace c == Data.Char.isSpace c