lincd/lib/esm/utils/URI.js

LINCD is a JavaScript library for building user interfaces with linked data (also known as 'structured data', or RDF)

/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 */
export class URI {
    /**
     * Function: sanitize
     * Returns a sanitized string, typically for URLs.
     *
     * Parameters:
     *     $string - The string to sanitize.
     *     $force_lowercase - Force the string to lowercase?
     */
    static sanitize(string) {
        if (!string)
            return string;
        //\u200B is the ZERO WIDTH SPACE, often introduced by WYSIWYG editors. This causes a hyphen (-) at the end of a string sometimes, so we filter it out first
        return string
            .replace(/\u200B/g, '')
            .replace(/[^\w]+/g, '-')
            .toLowerCase();
    }
    static isURI(uri) {
        //must have a scheme followed by ://
        return /([A-Za-z][A-Za-z0-9+\-.]*)\:\/\//.test(uri);
    }
    /**
     * Generate a new URI based on the given URI components (labels / identifiers).
     * This URI will start with the DATA_ROOT environment variable
     * @param uriComponents
     */
    static generate(...uriComponents) {
        return (process.env.DATA_ROOT +
            uriComponents.filter(Boolean).map(encodeURIComponent).join('/'));
    }
}
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