terriajs/dist/Core/markdownToHtml.js

Geospatial data visualization platform.

import DOMPurify from "dompurify";
import MarkdownIt from "markdown-it";
import defined from "terriajs-cesium/Source/Core/defined";
import injectTerms from "./injectTerms";
const md = new MarkdownIt({
    html: true,
    linkify: true
});
const htmlRegex = /^\s*<[^>]+>/;
/**
 * Convert a String in markdown format (which includes html) into html format.
 * @param  {String} markdownString String in markdown format.
 * @param  {Boolean} allowUnsafeHtml Pass true to allow unsafe html. Defaults to false.
 * @param  {Object} [domPurifyOptions] Options to pass to DOMPurify, eg. {ADD_TAGS: ['ying', 'yang']} (https://github.com/cure53/DOMPurify).
 * @param  {Object} [markdownOptions] Options for markdown parsing
 * @return {String} HTML-formatted string.
 */
function markdownToHtml(markdownString, allowUnsafeHtml = false, domPurifyOptions = {}, markdownOptions = {}) {
    if (!defined(markdownString) || markdownString.length === 0) {
        return markdownString;
    }
    // If the text looks like html, don't try to interpret it as Markdown because
    // we'll probably break it in the process.
    // It would wrap non-standard tags such as <collapsible>hi</collapsible> in a <p></p>, which is bad.
    let unsafeHtml;
    if (htmlRegex.test(markdownString)) {
        unsafeHtml = markdownString;
    }
    else {
        let stringToParse = markdownString;
        // MarkdownIt can't handle something that is not a string primitve.  It can't even handle
        // something that is a string object (instanceof String) rather a string primitive
        // (typeof string === 'string').  So if this isn't a string primitive, call toString
        // on it in order to make it one.
        if (markdownString && typeof markdownString !== "string") {
            stringToParse = markdownString.toString();
        }
        if (markdownOptions.injectTermsAsTooltips && markdownOptions.tooltipTerms) {
            stringToParse = injectTerms(stringToParse, markdownOptions.tooltipTerms);
        }
        unsafeHtml = markdownOptions.inline
            ? md.renderInline(stringToParse)
            : md.render(stringToParse);
    }
    if (allowUnsafeHtml) {
        return unsafeHtml;
    }
    else {
        return DOMPurify.sanitize(unsafeHtml, domPurifyOptions);
    }
}
export default markdownToHtml;
//# sourceMappingURL=markdownToHtml.js.map