Jule Manual

Appearance

std/unicode/utf16 ​

Index ​

fn IsSurrogate(r: rune): bool
fn RuneLen(r: rune): int
fn DecodeRune(r1: rune, r2: rune): rune
fn EncodeRune(mut r: rune): (r1: rune, r2: rune)
fn Encode(s: []rune): []u16
fn Decode(s: []u16): []rune
fn AppendRune(mut a: []u16, r: rune): []u16

IsSurrogate ​

jule
fn IsSurrogate(r: rune): bool

Reports whether the specified Unicode code point can appear in a surrogate pair.

RuneLen ​

jule
fn RuneLen(r: rune): int

Returns the number of 16-bit words in the UTF-16 encoding of the rune. It returns -1 if the rune is not a valid value to encode in UTF-16.

DecodeRune ​

jule
fn DecodeRune(r1: rune, r2: rune): rune

Returns the UTF-16 decoding of a surrogate pair. If the pair is not a valid UTF-16 surrogate pair, DecodeRune returns the Unicode replacement code point U+FFFD.

EncodeRune ​

jule
fn EncodeRune(mut r: rune): (r1: rune, r2: rune)

Returns the UTF-16 surrogate pair r1, r2 for the given rune. If the rune is not a valid Unicode code point or does not need encoding, encode_rune returns U+FFFD, U+FFFD.

Encode ​

jule
fn Encode(s: []rune): []u16

Returns the UTF-16 encoding of the Unicode code point sequence s.

Decode ​

jule
fn Decode(s: []u16): []rune

Returns the Unicode code point sequence represented by the UTF-16 encoding s.

AppendRune ​

jule
fn AppendRune(mut a: []u16, r: rune): []u16

Appends the UTF-16 encoding of the Unicode code point r to the end of p and returns the extended buffer. If the rune is not a valid Unicode code point, it appends the encoding of U+FFFD.