Edit - formats.js

Edit: formats.js

'use strict';

var util = require('./util');

module.exports = formats;

function formats(mode) {
  mode = mode == 'full' ? 'full' : 'fast';
  return util.copy(formats[mode]);
}

formats.fast = {
  // date: http://tools.ietf.org/html/rfc3339#section-5.6
  date: /^\d\d\d\d-[0-1]\d-[0-3]\d$/,
  // date-time: http://tools.ietf.org/html/rfc3339#section-5.6
  time: /^(?:[0-2]\d:[0-5]\d:[0-5]\d|23:59:60)(?:\.\d+)?(?:z|[+-]\d\d(?::?\d\d)?)?$/i,
  'date-time': /^\d\d\d\d-[0-1]\d-[0-3]\d[t\s](?:[0-2]\d:[0-5]\d:[0-5]\d|23:59:60)(?:\.\d+)?(?:z|[+-]\d\d(?::?\d\d)?)$/i,
  // uri: https://github.com/mafintosh/is-my-json-valid/blob/master/formats.js
  uri: /^(?:[a-z][a-z0-9+\-.]*:)(?:\/?\/)?[^\s]*$/i,
  'uri-reference': /^(?:(?:[a-z][a-z0-9+\-.]*:)?\/?\/)?(?:[^\\\s#][^\s#]*)?(?:#[^\\\s]*)?$/i,
  'uri-template': URITEMPLATE,
  url: URL,
  // email (sources from jsen validator):
  // http://stackoverflow.com/questions/201323/using-a-regular-expression-to-validate-an-email-address#answer-8829363
  // http://www.w3.org/TR/html5/forms.html#valid-e-mail-address (search for 'willful violation')
  email: /^[a-z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?(?:\.[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?)*$/i,
  hostname: HOSTNAME,
  // optimized https://www.safaribooksonline.com/library/view/regular-expressions-cookbook/9780596802837/ch07s16.html
  ipv4: /^(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)$/,
  // optimized http://stackoverflow.com/questions/53497/regular-expression-that-matches-valid-ipv6-addresses
  ipv6: /^\s*(?:(?:(?:[0-9a-f]{1,4}:){7}(?:[0-9a-f]{1,4}|:))|(?:(?:[0-9a-f]{1,4}:){6}(?::[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){5}(?:(?:(?::[0-9a-f]{1,4}){1,2})|:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){4}(?:(?:(?::[0-9a-f]{1,4}){1,3})|(?:(?::[0-9a-f]{1,4})?:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){3}(?:(?:(?::[0-9a-f]{1,4}){1,4})|(?:(?::[0-9a-f]{1,4}){0,2}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){2}(?:(?:(?::[0-9a-f]{1,4}){1,5})|(?:(?::[0-9a-f]{1,4}){0,3}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){1}(?:(?:(?::[0-9a-f]{1,4}){1,6})|(?:(?::[0-9a-f]{1,4}){0,4}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?::(?:(?:(?::[0-9a-f]{1,4}){1,7})|(?:(?::[0-9a-f]{1,4}){0,5}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(?:%.+)?\s*$/i,
  regex: regex,
  // uuid: http://tools.ietf.org/html/rfc4122
  uuid: UUID,
  // JSON-pointer: https://tools.ietf.org/html/rfc6901
  // uri fragment: https://tools.ietf.org/html/rfc3986#appendix-A
  'json-pointer': JSON_POINTER,
  'json-pointer-uri-fragment': JSON_POINTER_URI_FRAGMENT,
  // relative JSON-pointer: http://tools.ietf.org/html/draft-luff-relative-json-pointer-00
  'relative-json-pointer': RELATIVE_JSON_POINTER
};

formats.full = {
  date: date,
  time: time,
  'date-time': date_time,
  uri: uri,
  'uri-reference': URIREF,
  'uri-template': URITEMPLATE,
  url: URL,
  email: /^[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$/i,
  hostname: HOSTNAME,
  ipv4: /^(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)$/,
  ipv6: /^\s*(?:(?:(?:[0-9a-f]{1,4}:){7}(?:[0-9a-f]{1,4}|:))|(?:(?:[0-9a-f]{1,4}:){6}(?::[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){5}(?:(?:(?::[0-9a-f]{1,4}){1,2})|:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){4}(?:(?:(?::[0-9a-f]{1,4}){1,3})|(?:(?::[0-9a-f]{1,4})?:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){3}(?:(?:(?::[0-9a-f]{1,4}){1,4})|(?:(?::[0-9a-f]{1,4}){0,2}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){2}(?:(?:(?::[0-9a-f]{1,4}){1,5})|(?:(?::[0-9a-f]{1,4}){0,3}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){1}(?:(?:(?::[0-9a-f]{1,4}){1,6})|(?:(?::[0-9a-f]{1,4}){0,4}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?::(?:(?:(?::[0-9a-f]{1,4}){1,7})|(?:(?::[0-9a-f]{1,4}){0,5}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(?:%.+)?\s*$/i,
  regex: regex,
  uuid: UUID,
  'json-pointer': JSON_POINTER,
  'json-pointer-uri-fragment': JSON_POINTER_URI_FRAGMENT,
  'relative-json-pointer': RELATIVE_JSON_POINTER
};

function isLeapYear(year) {
  // https://tools.ietf.org/html/rfc3339#appendix-C
  return year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0);
}

function date(str) {
  // full-date from http://tools.ietf.org/html/rfc3339#section-5.6
  var matches = str.match(DATE);
  if (!matches) return false;

var year = +matches[1];
  var month = +matches[2];
  var day = +matches[3];

return month >= 1 && month <= 12 && day >= 1 &&
          day <= (month == 2 && isLeapYear(year) ? 29 : DAYS[month]);
}

function time(str, full) {
  var matches = str.match(TIME);
  if (!matches) return false;

var hour = matches[1];
  var minute = matches[2];
  var second = matches[3];
  var timeZone = matches[5];
  return ((hour <= 23 && minute <= 59 && second <= 59) ||
          (hour == 23 && minute == 59 && second == 60)) &&
         (!full || timeZone);
}

var DATE_TIME_SEPARATOR = /t|\s/i;
function date_time(str) {
  // http://tools.ietf.org/html/rfc3339#section-5.6
  var dateTime = str.split(DATE_TIME_SEPARATOR);
  return dateTime.length == 2 && date(dateTime[0]) && time(dateTime[1], true);
}

var NOT_URI_FRAGMENT = /\/|:/;
function uri(str) {
  // http://jmrware.com/articles/2009/uri_regexp/URI_regex.html + optional protocol + required "."
  return NOT_URI_FRAGMENT.test(str) && URI.test(str);
}

var Z_ANCHOR = /[^\\]\\Z/;
function regex(str) {
  if (Z_ANCHOR.test(str)) return false;
  try {
    new RegExp(str);
    return true;
  } catch(e) {
    return false;
  }
}

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