HORIZON PROJECT

module.exports = pluralize;

/**

 * Pluralization rules.

 *

 * These rules are applied while processing the argument to `toCollectionName`.

 *

 * @deprecated remove in 4.x gh-1350

 */

exports.pluralization = [

  [/(m)an$/gi, '$1en'],

  [/(pe)rson$/gi, '$1ople'],

  [/(child)$/gi, '$1ren'],

  [/^(ox)$/gi, '$1en'],

  [/(ax|test)is$/gi, '$1es'],

  [/(octop|vir)us$/gi, '$1i'],

  [/(alias|status)$/gi, '$1es'],

  [/(bu)s$/gi, '$1ses'],

  [/(buffal|tomat|potat)o$/gi, '$1oes'],

  [/([ti])um$/gi, '$1a'],

  [/sis$/gi, 'ses'],

  [/(?:([^f])fe|([lr])f)$/gi, '$1$2ves'],

  [/(hive)$/gi, '$1s'],

  [/([^aeiouy]|qu)y$/gi, '$1ies'],

  [/(x|ch|ss|sh)$/gi, '$1es'],

  [/(matr|vert|ind)ix|ex$/gi, '$1ices'],

  [/([m|l])ouse$/gi, '$1ice'],

  [/(kn|w|l)ife$/gi, '$1ives'],

  [/(quiz)$/gi, '$1zes'],

  [/s$/gi, 's'],

  [/([^a-z])$/, '$1'],

  [/$/gi, 's']

];

var rules = exports.pluralization;

/**

 * Uncountable words.

 *

 * These words are applied while processing the argument to `toCollectionName`.

 * @api public

 */

exports.uncountables = [

  'advice',

  'energy',

  'excretion',

  'digestion',

  'cooperation',

  'health',

  'justice',

  'labour',

  'machinery',

  'equipment',

  'information',

  'pollution',

  'sewage',

  'paper',

  'money',

  'species',

  'series',

  'rain',

  'rice',

  'fish',

  'sheep',

  'moose',

  'deer',

  'news',

  'expertise',

  'status',

  'media'

];

var uncountables = exports.uncountables;

/*!

 * Pluralize function.

 *

 * @author TJ Holowaychuk (extracted from _ext.js_)

 * @param {String} string to pluralize

 * @api private

 */

function pluralize(str) {

  var found;

  str = str.toLowerCase();

  if (!~uncountables.indexOf(str)) {

    found = rules.filter(function(rule) {

      return str.match(rule[0]);

    });

    if (found[0]) {

      return str.replace(found[0][0], found[0][1]);

    }

  }

  return str;

}