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Module: stdgo.unicode.utf16

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Overview

Package utf16 implements encoding and decoding of UTF-16 sequences.

Index

Constants

import stdgo.unicode.utf16.Utf16
final _maxRune:stdgo.GoInt32 = ((1114111 : stdgo.GoInt32))

Maximum valid Unicode code point. 

final _replacementChar:stdgo.GoInt32 = ((65533 : stdgo.GoInt32))

Unicode replacement character 

final _surr1:stdgo.GoUInt64 = ((55296i64 : stdgo.GoUInt64))

0xd800-0xdc00 encodes the high 10 bits of a pair. 0xdc00-0xe000 encodes the low 10 bits of a pair. the value is those 20 bits plus 0x10000. 

final _surr2:stdgo.GoUInt64 = ((56320i64 : stdgo.GoUInt64))
final _surr3:stdgo.GoUInt64 = ((57344i64 : stdgo.GoUInt64))
final _surrSelf:stdgo.GoUInt64 = ((65536i64 : stdgo.GoUInt64))
final maxRune:stdgo.GoInt32 = ((1114111 : stdgo.GoInt32))

Extra names for constants so we can validate them during testing. 

final replacementChar:stdgo.GoInt32 = ((65533 : stdgo.GoInt32))

Extra names for constants so we can validate them during testing.

Functions

import stdgo.unicode.utf16.Utf16

function _decode

function _decode(_s:stdgo.Slice<stdgo.GoUInt16>, _buf:stdgo.Slice<stdgo.GoRune>):stdgo.Slice<stdgo.GoRune>

decode appends to buf the Unicode code point sequence represented by the UTF-16 encoding s and return the extended buffer.

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function appendRune

function appendRune(_a:stdgo.Slice<stdgo.GoUInt16>, _r:stdgo.GoRune):stdgo.Slice<stdgo.GoUInt16>

AppendRune 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.

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function decode

function decode(_s:stdgo.Slice<stdgo.GoUInt16>):stdgo.Slice<stdgo.GoRune>

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

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function decodeRune

function decodeRune(_r1:stdgo.GoRune, _r2:stdgo.GoRune):stdgo.GoRune

DecodeRune 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.

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function encode

function encode(_s:stdgo.Slice<stdgo.GoRune>):stdgo.Slice<stdgo.GoUInt16>

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

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function encodeRune

function encodeRune(_r:stdgo.GoRune):{
	_1:stdgo.GoRune;
	_0:stdgo.GoRune;
}

EncodeRune 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, EncodeRune returns U+FFFD, U+FFFD.

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function isSurrogate

function isSurrogate(_r:stdgo.GoRune):Bool

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

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