Yu1709$!%yuyu!$%wutu!5=126+

                
____  ___       .__                 
\   \/  /  _____|  |   ______  _  __
 \     /  /  ___/  |  /  _ \ \/ \/ /
 /     \  \___ \|  |_(  <_> )     / 
/___/\  \/____  >____/\____/ \/\_/  
      \_/     \/    @ligmakokz

Editing: email.js

'use strict';

const Util = require('util');

const Domain = require('./domain');
const Errors = require('./errors');

const internals = {
    nonAsciiRx: /[^\x00-\x7f]/,
    encoder: new (Util.TextEncoder || TextEncoder)()                                            // $lab:coverage:ignore$
};

exports.analyze = function (email, options) {

return internals.email(email, options);
};

exports.isValid = function (email, options) {

return !internals.email(email, options);
};

internals.email = function (email, options = {}) {

if (typeof email !== 'string') {
        throw new Error('Invalid input: email must be a string');
    }

if (!email) {
        return Errors.code('EMPTY_STRING');
    }

// Unicode

const ascii = !internals.nonAsciiRx.test(email);
    if (!ascii) {
        if (options.allowUnicode === false) {                                                   // Defaults to true
            return Errors.code('FORBIDDEN_UNICODE');
        }

email = email.normalize('NFC');
    }

// Basic structure

const parts = email.split('@');
    if (parts.length !== 2) {
        return parts.length > 2 ? Errors.code('MULTIPLE_AT_CHAR') : Errors.code('MISSING_AT_CHAR');
    }

const [local, domain] = parts;

if (!local) {
        return Errors.code('EMPTY_LOCAL');
    }

if (!options.ignoreLength) {
        if (email.length > 254) {                                           // http://tools.ietf.org/html/rfc5321#section-4.5.3.1.3
            return Errors.code('ADDRESS_TOO_LONG');
        }

if (internals.encoder.encode(local).length > 64) {                  // http://tools.ietf.org/html/rfc5321#section-4.5.3.1.1
            return Errors.code('LOCAL_TOO_LONG');
        }
    }

// Validate parts

return internals.local(local, ascii) || Domain.analyze(domain, options);
};

internals.local = function (local, ascii) {

const segments = local.split('.');
    for (const segment of segments) {
        if (!segment.length) {
            return Errors.code('EMPTY_LOCAL_SEGMENT');
        }

if (ascii) {
            if (!internals.atextRx.test(segment)) {
                return Errors.code('INVALID_LOCAL_CHARS');
            }

continue;
        }

for (const char of segment) {
            if (internals.atextRx.test(char)) {
                continue;
            }

const binary = internals.binary(char);
            if (!internals.atomRx.test(binary)) {
                return Errors.code('INVALID_LOCAL_CHARS');
            }
        }
    }
};

internals.binary = function (char) {

return Array.from(internals.encoder.encode(char)).map((v) => String.fromCharCode(v)).join('');
};

/*
    From RFC 5321:

Mailbox         =   Local-part "@" ( Domain / address-literal )

Local-part      =   Dot-string / Quoted-string
        Dot-string      =   Atom *("."  Atom)
        Atom            =   1*atext
        atext           =   ALPHA / DIGIT / "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" / "/" / "=" / "?" / "^" / "_" / "`" / "{" / "|" / "}" / "~"

Domain          =   sub-domain *("." sub-domain)
        sub-domain      =   Let-dig [Ldh-str]
        Let-dig         =   ALPHA / DIGIT
        Ldh-str         =   *( ALPHA / DIGIT / "-" ) Let-dig

ALPHA           =   %x41-5A / %x61-7A        ; a-z, A-Z
        DIGIT           =   %x30-39                  ; 0-9

From RFC 6531:

sub-domain      =/  U-label
        atext           =/  UTF8-non-ascii

UTF8-non-ascii  =   UTF8-2 / UTF8-3 / UTF8-4

UTF8-2          =   %xC2-DF UTF8-tail
        UTF8-3          =   %xE0 %xA0-BF UTF8-tail /
                            %xE1-EC 2( UTF8-tail ) /
                            %xED %x80-9F UTF8-tail /
                            %xEE-EF 2( UTF8-tail )
        UTF8-4          =   %xF0 %x90-BF 2( UTF8-tail ) /
                            %xF1-F3 3( UTF8-tail ) /
                            %xF4 %x80-8F 2( UTF8-tail )

UTF8-tail       =   %x80-BF

Note: The following are not supported:

RFC 5321: address-literal, Quoted-string
        RFC 5322: obs-*, CFWS
*/

internals.atextRx = /^[\w!#\$%&'\*\+\-/=\?\^`\{\|\}~]+$/;               // _ included in \w

internals.atomRx = new RegExp([

//  %xC2-DF UTF8-tail
    '(?:[\\xc2-\\xdf][\\x80-\\xbf])',

//  %xE0 %xA0-BF UTF8-tail              %xE1-EC 2( UTF8-tail )            %xED %x80-9F UTF8-tail              %xEE-EF 2( UTF8-tail )
    '(?:\\xe0[\\xa0-\\xbf][\\x80-\\xbf])|(?:[\\xe1-\\xec][\\x80-\\xbf]{2})|(?:\\xed[\\x80-\\x9f][\\x80-\\xbf])|(?:[\\xee-\\xef][\\x80-\\xbf]{2})',

//  %xF0 %x90-BF 2( UTF8-tail )            %xF1-F3 3( UTF8-tail )            %xF4 %x80-8F 2( UTF8-tail )
    '(?:\\xf0[\\x90-\\xbf][\\x80-\\xbf]{2})|(?:[\\xf1-\\xf3][\\x80-\\xbf]{3})|(?:\\xf4[\\x80-\\x8f][\\x80-\\xbf]{2})'

].join('|'));

Name	Type	Actions
decode.js	File
domain.js	File
email.js	File
errors.js	File
index.d.ts	File
index.js	File
ip.js	File
tlds.js	File
uri.js	File