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keksAccountGUI/node_modulesOLD/@hapi/address/lib/abnf.js

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2019-08-11 18:48:02 +00:00
'use strict';
const internals = {};
/*
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 / "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" / "/" / "=" / "?" / "^" / "_" / "`" / "{" / "|" / "}" / "~"
Domain = sub-domain *("." sub-domain)
sub-domain = Let-dig [Ldh-str]
Let-dig = ALPHA / DIGIT
Ldh-str = *( ALPHA / DIGIT / "-" ) Let-dig
ALPHA = %x41-5A / %x61-7A ; a-z, A-Z
DIGIT = %x30-39 ; 0-9
From RFC 6531:
sub-domain =/ U-label
atext =/ UTF8-non-ascii
UTF8-non-ascii = UTF8-2 / UTF8-3 / UTF8-4
UTF8-2 = %xC2-DF UTF8-tail
UTF8-3 = %xE0 %xA0-BF UTF8-tail /
%xE1-EC 2( UTF8-tail ) /
%xED %x80-9F UTF8-tail /
%xEE-EF 2( UTF8-tail )
UTF8-4 = %xF0 %x90-BF 2( UTF8-tail ) /
%xF1-F3 3( UTF8-tail ) /
%xF4 %x80-8F 2( UTF8-tail )
UTF8-tail = %x80-BF
Note: The following are not supported:
RFC 5321: address-literal, Quoted-string
RFC 5322: obs-*, CFWS
*/
internals.atext = '[\\w!#\\$%&\'\\*\\+\\-/=\\?\\^`\\{\\|\\}~]'; // _ included in \w
exports.atextRx = new RegExp(`^${internals.atext}+$`);
exports.atomRx = new RegExp([
internals.atext,
// %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('|'));