docusaurus/lib/core/toSlug.js
2017-07-10 16:38:35 -07:00

43 lines
1.3 KiB
JavaScript

/**
* Copyright (c) 2017-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
module.exports = string => {
// var accents = "àáäâèéëêìíïîòóöôùúüûñç";
const accents =
"\u00e0\u00e1\u00e4\u00e2\u00e8" +
"\u00e9\u00eb\u00ea\u00ec\u00ed\u00ef" +
"\u00ee\u00f2\u00f3\u00f6\u00f4\u00f9" +
"\u00fa\u00fc\u00fb\u00f1\u00e7";
const without = "aaaaeeeeiiiioooouuuunc";
let slug = string
.toString()
// Handle uppercase characters
.toLowerCase()
// Handle accentuated characters
.replace(new RegExp("[" + accents + "]", "g"), c => {
return without.charAt(accents.indexOf(c));
})
// Replace `.`, `(` and `?` with blank string like Github does
.replace(/\.|\(|\?/g, "")
// Dash special characters
.replace(/[^a-z0-9]/g, "-")
// Compress multiple dash
.replace(/-+/g, "-")
// Trim dashes
.replace(/^-|-$/g, "");
// Add trailing `-` if string contains ` ...` in the end like Github does
if (/\s[.]{1,}/.test(string)) {
slug += "-";
}
return slug;
};