isAscii -package:sbv

Selects the first 128 characters of the Unicode character set, corresponding to the ASCII character set.

O(n) Test whether Text contains only ASCII code-points (i.e. only U+0000 through U+007F). This is a more efficient version of all isAscii.

>>> isAscii ""
True

>>> isAscii "abc\NUL"
True

>>> isAscii "abcd€"
False

isAscii t == all (< '\x80') t

O(n) Test whether Text contains only ASCII code-points (i.e. only U+0000 through U+007F). This is a more efficient version of all isAscii.

>>> isAscii ""
True

>>> isAscii "abc\NUL"
True

>>> isAscii "abcd€"
False

isAscii t == all (< '\x80') t

Test whether ShortText contains only ASCII code-points (i.e. only U+0000 through U+007F). This is a more efficient version of all isAscii.

>>> isAscii ""
True

>>> isAscii "abc\NUL"
True

>>> isAscii "abcd€"
False

isAscii t == all (< '\x80') t

Ascii characters

O(n/8) detremine if a ByteString is ASCII-encoded.

Selects ASCII lower-case letters, i.e. characters satisfying both isAscii and isLower.

Selects ASCII upper-case letters, i.e. characters satisfying both isAscii and isUpper.

Select alphabetic characters in the ascii character set. Pre-release

Ascii letters.

Ascii letters and digits.

>>> isAsciiAlphaNum 'a'
True

>>> isAsciiAlphaNum 'ä'
False

Tests if hostname contains segments with an ASCII-compatible encoding of an Internationalized Domain Name. If this returns True, you should decode the hostname with hostnameToUnicode before displaying it to the user. Note that a hostname might contain a mix of encoded and unencoded segments, and so it is possible for hostnameIsNonAscii and hostnameIsAsciiEncoded to both return True for a name. Since: 2.22

Determines if a string is pure ASCII. A string is pure ASCII if it contains no bytes with the high bit set. Since: 2.40