/** Extracts the values of all named anchors used in the Markdown string, i.e. of the form <mark name="<value>"></mark>. */
const extractNamedAnchors = (markdown: string): string[] => {
    const regex = new RegExp('<a\\s+id="([^"]+)"\\s*>[^<]*</a>', "g");
    const namedAnchors: string[] = [];

    let results = regex.exec(markdown);
    while (results !== null) {
        namedAnchors.push(results[1]);
        results = regex.exec(markdown);
    }
    return namedAnchors;
};

const utils = {
    extractNamedAnchors,
};

export default utils;