utf8

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This library provides basic support for UTF-8 encoding. This library does not provide any support for Unicode other than the handling of the encoding. Any operation that needs the meaning of a character, such as character classification, is outside its scope.

Unless stated otherwise, all functions that expect a byte position as a parameter assume that the given position is either the start of a byte sequence or one plus the length of the subject string. As in the string library, negative indices count from the end of the string.

You can find a large catalog of usable UTF-8characters here.

Resumen

Propiedades

  • charpattern:string

    The pattern "[%z\x01-\x7F\xC2-\xF4][\x80-\xBF]*", which matches exactly zero or more UTF-8 byte sequence, assuming that the subject is a valid UTF-8 string.

Funciones

char

string

Parámetros

codepoints: Tuple<number>

Devuelve

string

codes

function

Parámetros

str: string

Devuelve

function
string
number

codepoint

Tuple<number>

Parámetros

str: string
i: number
Valor predeterminado: 1
j: number
Valor predeterminado: i

Devuelve

Tuple<number>

len

number

Parámetros

s: string
i: number
Valor predeterminado: 1
j: number
Valor predeterminado: -1

Devuelve

number

offset

number

Parámetros

s: string
n: number
i: number
Valor predeterminado: 1

Devuelve

number

graphemes

function

Parámetros

str: string
i: number
j: number

Devuelve

function

nfcnormalize

string

Parámetros

str: string

Devuelve

string

nfdnormalize

string

Parámetros

str: string

Devuelve

string

Propiedades

charpattern

string

The pattern "[%z\x01-\x7F\xC2-\xF4][\x80-\xBF]*", which matches exactly zero or more UTF-8 byte sequence, assuming that the subject is a valid UTF-8 string.