Expand description
A character type.
The char
type represents a single character. More specifically, since
‘character’ isn’t a well-defined concept in Unicode, char
is a ‘Unicode
scalar value’, which is similar to, but not the same as, a ‘Unicode code
point’.
This module exists for technical reasons, the primary documentation for
char
is directly on the char
primitive type itself.
This module is the home of the iterator implementations for the iterators
implemented on char
, as well as some useful constants and conversion
functions that convert various types to char
.
Structs
An iterator that decodes UTF-16 encoded code points from an iterator of u16
s.
An error that can be returned when decoding UTF-16 code points.
An iterator that yields the literal escape code of a char
.
An iterator that yields the literal escape code of a char
.
Returns an iterator that yields the hexadecimal Unicode escape of a
character, as char
s.
An error which can be returned when parsing a char.
Returns an iterator that yields the lowercase equivalent of a char
.
Returns an iterator that yields the uppercase equivalent of a char
.
The error type returned when a checked char conversion fails.
Constants
U+FFFD REPLACEMENT CHARACTER
(�) is used in Unicode to represent a
decoding error. Use char::REPLACEMENT_CHARACTER
instead.
The version of Unicode that the Unicode parts of
char
and str
methods are based on. Use char::UNICODE_VERSION
instead.
Functions
Creates an iterator over the UTF-16 encoded code points in iter
, returning
unpaired surrogates as Err
s. Use char::decode_utf16
instead.
Converts a digit in the given radix to a char
. Use char::from_digit
instead.
Converts a u32
to a char
. Use char::from_u32
instead.
Converts a u32
to a char
, ignoring validity. Use char::from_u32_unchecked
.
instead.