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96 lines
1.7 KiB
JavaScript

'use strict';
module.exports = pluralize;
/**
* Pluralization rules.
*/
exports.pluralization = [
[/human$/gi, 'humans'],
[/(m)an$/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, '$1zes'],
[/^goose$/i, 'geese'],
[/s$/gi, 's'],
[/([^a-z])$/, '$1'],
[/$/gi, 's']
];
const 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'
];
const uncountables = exports.uncountables;
/**
* Pluralize function.
*
* @author TJ Holowaychuk (extracted from _ext.js_)
* @param {String} string to pluralize
* @api private
*/
function pluralize(str) {
let 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;
}