@jsdevtools/rehype-url-inspector/lib/selectors.js

A rehype plugin to inspect, validate, or rewrite URLs anywhere in an HTML document

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createUrlSelector = exports.defaultSelectors = void 0;
const urlRegex = require("url-regex");
/**
 * Matches simple CSS attribute selectors (e.g. `a[href]` or `img[src]`)
 */
const cssSelectorPattern = /^([a-z0-9_-]+)\[([a-z0-9_-]+)\]$/i;
/**
 * Matches a string that is a URL
 */
const urlPattern = urlRegex({ exact: true });
/**
 * The default URL selectors
 */
exports.defaultSelectors = [
    createUrlSelector("a[href]"),
    createUrlSelector("link[href]"),
    createUrlSelector("img[src]"),
    createUrlSelector("script[src]"),
    /**
     * Many `<meta>` tags have a `content` attribute that is a URL
     *
     * @example
     *  <meta rel="canonical" content="http://example.com">
     *  <meta name="twitter:image" content="http://example.com/logo.png">
     */
    { tagName: "meta", propertyName: "content", pattern: urlPattern },
];
/**
 * Creates a `UrlSelector` from a CSS attribute selector
 */
function createUrlSelector(selector) {
    let match = cssSelectorPattern.exec(selector);
    if (!match) {
        throw new Error(`Invalid or unsupported CSS selector: ${selector}`);
    }
    let tagName = match[1].toLowerCase();
    let propertyName = match[2].toLowerCase();
    return { tagName, propertyName };
}
exports.createUrlSelector = createUrlSelector;
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