Module std::char1.0.0 [] [src]

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

DecodeUtf16

An iterator that decodes UTF-16 encoded code points from an iterator of u16s.

DecodeUtf16Error

An iterator that decodes UTF-16 encoded code points from an iterator of u16s.

EscapeDefault

An iterator that yields the literal escape code of a char.

EscapeUnicode

Returns an iterator that yields the hexadecimal Unicode escape of a character, as chars.

ToLowercase

Returns an iterator that yields the lowercase equivalent of a char.

ToUppercase

Returns an iterator that yields the uppercase equivalent of a char.

CharTryFromError [Unstable]

The error type returned when a conversion from u32 to char fails.

DecodeUtf8 [Unstable]

An iterator over an iterator of bytes of the characters the bytes represent as UTF-8

EscapeDebug [Unstable]

An iterator that yields the literal escape code of a char.

Constants

MAX

The highest valid code point a char can have.

REPLACEMENT_CHARACTER

U+FFFD REPLACEMENT CHARACTER (�) is used in Unicode to represent a decoding error.

UNICODE_VERSION [Unstable]

The version of Unicode that the unicode parts of CharExt and UnicodeStrPrelude traits are based on.

Functions

decode_utf16

Create an iterator over the UTF-16 encoded code points in iter, returning unpaired surrogates as Errs.

from_digit

Converts a digit in the given radix to a char.

from_u32

Converts a u32 to a char.

from_u32_unchecked

Converts a u32 to a char, ignoring validity.

decode_utf8 [Unstable]

Decodes an Iterator of bytes as UTF-8.