isAscii is:exact

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

Is this an ASCII character, i.e., the first 128 characters.

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