89 lines
3.0 KiB
JavaScript
89 lines
3.0 KiB
JavaScript
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'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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const MarkdownIt = require('markdown-it');
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function _interopDefaultCompat (e) { return e && typeof e === 'object' && 'default' in e ? e.default : e; }
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const MarkdownIt__default = /*#__PURE__*/_interopDefaultCompat(MarkdownIt);
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var __defProp = Object.defineProperty;
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var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
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var __publicField = (obj, key, value) => {
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__defNormalProp(obj, typeof key !== "symbol" ? key + "" : key, value);
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return value;
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};
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const placeholder = (id) => `<pre>::markdown-it-async::${id}::</pre>`;
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const placeholderRe = /<pre>::markdown-it-async::(\w+)::<\/pre>/g;
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function randStr() {
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return Math.random().toString(36).slice(2) + Math.random().toString(36).slice(2);
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}
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class MarkdownItAsync extends MarkdownIt__default {
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constructor(...args) {
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const map = /* @__PURE__ */ new Map();
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const options = args.length === 2 ? args[1] : args[0];
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if (options && "highlight" in options)
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options.highlight = wrapHightlight(options.highlight, map);
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super(...args);
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__publicField(this, "map");
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this.map = map;
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}
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async renderAsync(src, env) {
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const result = this.render(src, env);
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return replaceAsync(result, placeholderRe, async (match, id) => {
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if (!this.map.has(id))
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throw new Error(`Unknown highlight placeholder id: ${id}`);
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const [promise, _str, lang, _attrs] = this.map.get(id);
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const result2 = await promise || "";
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this.map.delete(id);
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if (result2.startsWith("<pre"))
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return result2;
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else
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return `<pre><code class="language-${lang}">${result2}</code></pre>`;
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});
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}
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}
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function createMarkdownItAsync(...args) {
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return new MarkdownItAsync(...args);
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}
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function replaceAsync(string, searchValue, replacer) {
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try {
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if (typeof replacer === "function") {
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const values = [];
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String.prototype.replace.call(string, searchValue, (...args) => {
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values.push(replacer(...args));
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return "";
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});
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return Promise.all(values).then((resolvedValues) => {
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return String.prototype.replace.call(string, searchValue, () => {
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return resolvedValues.shift() || "";
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});
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});
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} else {
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return Promise.resolve(
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String.prototype.replace.call(string, searchValue, replacer)
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);
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}
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} catch (error) {
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return Promise.reject(error);
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}
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}
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function wrapHightlight(highlight, map) {
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if (!highlight)
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return void 0;
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return (str, lang, attrs) => {
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const promise = highlight(str, lang, attrs);
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if (typeof promise === "string")
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return promise;
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const id = randStr();
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map.set(id, [promise, str, lang, attrs]);
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return placeholder(id);
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};
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}
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exports.MarkdownItAsync = MarkdownItAsync;
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exports.createMarkdownItAsync = createMarkdownItAsync;
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exports.default = createMarkdownItAsync;
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exports.replaceAsync = replaceAsync;
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