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string

string.ubyte​

function string.ubyte(s: string, i?: integer, j?: integer)
  -> integer
  2. ...unknown

UTF-8 equivalent of string.byte

string.uchar​

function string.uchar(byte: integer, ...integer)
  -> string
  2. ...unknown

UTF-8 equivalent of string.char

string.ucharpos​

function string.ucharpos(s: string, charpos?: integer, index?: integer)
  -> charpos: integer
  2. codepoint: integer

Equivalent to utf8extra.charpos()

string.uclean​

function string.uclean(s: string, replacement_string?: string, non_consecutive?: boolean)
  -> cleaned_string: string
  2. was_valid: boolean

Equivalent to utf8extra.clean()

string.ucodepoint​

function string.ucodepoint(s: string, i?: integer, j?: integer, lax?: boolean)
  -> code: integer
  2. ...unknown

Equivalent to utf8.codepoint()

@param lax — Do not check if string is invalid utf8

string.ucodes​

function string.ucodes(s: string, lax?: boolean)
  -> fun():integer, integer

Equivalent to utf8.codes()

@param lax — Do not check if string is invalid utf8

string.uescape​

function string.uescape(s: string)
  -> utf8_string: string

Equivalent to utf8extra.escape()

string.ufind​

function string.ufind(s: string, pattern: string, init?: integer, plain?: boolean)
  -> start: integer
  2. end: integer
  3. ...unknown

UTF-8 equivalent of string.find

@return start

@return end

@return ... — captured

string.ufold​

function string.ufold(s: string)
  -> new_string: string

Equivalent to utf8extra.fold()

string.ugmatch​

function string.ugmatch(s: string, pattern: string, init?: integer)
  -> fun():string, ...unknown

UTF-8 equivalent of string.gmatch

string.ugsub​

function string.ugsub(s: string, pattern: string, repl: string|function|table, n: integer)
  -> string
  2. count: integer

UTF-8 equivalent of string.gsub

string.uinsert​

function string.uinsert(s: string, idx?: integer, substring: string)
  -> new_string: string

Equivalent to utf8extra.insert()

string.uinvalidoffset​

function string.uinvalidoffset(s: string, init?: integer)
  -> offset: integer

Equivalent to utf8extra.invalidoffset()

string.uisnfc​

function string.uisnfc(s: string)
  -> boolean

Equivalent to utf8extra.isnfc()

string.uisvalid​

function string.uisvalid(s: string)
  -> boolean

Equivalent to utf8extra.isvalid()

string.ulen​

function string.ulen(s: string, i?: integer, j?: integer, lax?: boolean)
  -> integer

UTF-8 equivalent of string.len

@param lax — Do not check if string is invalid utf8

string.ulower​

function string.ulower(s: string)
  -> string

UTF-8 equivalent of string.lower

string.umatch​

function string.umatch(s: string, pattern: string, init?: integer)
  -> captured: string|number

UTF-8 equivalent of string.match

string.uncasecmp​

function string.uncasecmp(a: string, b: string)
  -> result: integer

Equivalent to utf8extra.ncasecmp()

string.unext​

function string.unext(s: string, charpos?: integer, index?: integer)
  -> charpos: integer
  2. codepoint: integer

Equivalent to utf8extra.next()

string.unormalize_nfc​

function string.unormalize_nfc(s: string)
  -> normal_string: string
  2. was_n: boolean

Equivalent to utf8extra.normalize_nfc()

string.uoffset​

function string.uoffset(s: string, n: integer, i?: integer)
  -> position_in_bytes: integer

Equivalent to utf8.offset()

string.uremove​

function string.uremove(s: string, start?: integer, stop?: integer)
  -> new_string: string

Equivalent to utf8extra.remove()

string.ureverse​

function string.ureverse(s: string, lax?: boolean)
  -> string

UTF-8 equivalent of string.reverse

@param lax — Do not check if string is invalid utf8

string.usub​

function string.usub(s: string, i: integer, j?: integer)
  -> string

UTF-8 equivalent of string.sub

string.utitle​

function string.utitle(s: string)
  -> new_string: string

Equivalent to utf8extra.title()

string.uupper​

function string.uupper(s: string)
  -> string

UTF-8 equivalent of string.upper

string.uwidth​

function string.uwidth(s: string, ambi_is_double?: boolean, default_width?: integer)
  -> width: integer

Equivalent to utf8extra.width()

string.uwidthindex​

function string.uwidthindex(s: string, location: integer, ambi_is_double?: boolean, default_width?: integer)
  -> idx: integer
  2. offset: integer
  3. width: integer

Equivalent to utf8extra.widthindex()