wishthis/node_modules/plur/index.js
2022-01-21 09:28:41 +01:00

31 lines
989 B
JavaScript

'use strict';
const irregularPlurals = require('irregular-plurals');
module.exports = (word, plural, count) => {
if (typeof plural === 'number') {
count = plural;
}
if (irregularPlurals.has(word.toLowerCase())) {
plural = irregularPlurals.get(word.toLowerCase());
const firstLetter = word.charAt(0);
const isFirstLetterUpperCase = firstLetter === firstLetter.toUpperCase();
if (isFirstLetterUpperCase) {
plural = firstLetter.toUpperCase() + plural.slice(1);
}
const isWholeWordUpperCase = word === word.toUpperCase();
if (isWholeWordUpperCase) {
plural = plural.toUpperCase();
}
} else if (typeof plural !== 'string') {
plural = (word.replace(/(?:s|x|z|ch|sh)$/i, '$&e').replace(/([^aeiou])y$/i, '$1ie') + 's')
.replace(/i?e?s$/i, match => {
const isTailLowerCase = word.slice(-1) === word.slice(-1).toLowerCase();
return isTailLowerCase ? match.toLowerCase() : match.toUpperCase();
});
}
return Math.abs(count) === 1 ? word : plural;
};