添加html支持

packages/html2md/lib.ts

@@ -2,14 +2,20 @@ import 'hydrooj';
 import TurndownService from 'turndown';
 import { JSDOM } from 'jsdom';
 
-const turndownService = new TurndownService();
+const turndownService = new TurndownService({
+    headingStyle: 'atx',
+    codeBlockStyle: 'fenced',
+    bulletListMarker: '-',
+});
 
 export function convertHTML(html: string) {
     const DOM = new JSDOM(html);
     const eles = DOM.window.document.querySelectorAll('span.katex-mathml');
     eles.forEach((ele) => {
-        const MathML = ele.innerHTML;
-        ele.parentElement.replaceWith(MathML);
+        const MathML = ele.innerHTML
+            .replace(/\\{/gmi, '{')
+            .replace(/\\}/gmi, '}');
+        ele.parentElement.replaceWith(`$${MathML}$`);
     });
     return turndownService.turndown(DOM.serialize());
 }

packages/html2md/package.json

@@ -2,7 +2,8 @@
     "name": "@hydrooj/html2md",
     "version": "1.0.0",
     "description": "turn html into markdown",
-    "main": "package.json",
+    "main": "lib.js",
+    "typings": "lib.d.ts",
     "repository": "https://github.com/hydro-dev/Hydro.git",
     "author": "undefined <masnn0@outlook.com>",
     "license": "AGPL-3.0-only",
@@ -19,4 +20,4 @@
         "build": "tsc",
         "lint": "eslint . --ext ts --fix"
     }
-}
+}

packages/html2md/test/lib.spec.ts

@@ -0,0 +1,44 @@
+import 'hydrooj';
+import { convertHTML } from '@hydrooj/html2md/lib';
+
+describe('html2md', () => {
+    const Katex1 = `\
+<span class="katex">
+    <span class="katex-mathml">nn</span>
+    <span class="katex-html">
+        <span class="strut"></span>
+        <span class="strut bottom" style="vertical-align:0em;"></span>
+        <span class="base textstyle uncramped">
+            <span class="mord mathit">n</span>
+        </span>
+    </span>
+</span>`;
+    const Katex2 = `\
+<span class="katex">
+    <span class="katex-mathml">E={1,2,..,n}E=\\{1,2,..,n\\}</span>
+    <span class="katex-html">
+        <span class="strut"></span>
+        <span class="strut bottom" style="vertical-align:-0.25em;"></span>
+        <span class="base textstyle uncramped">
+            <span class="mord mathit">E</span>
+            <span class="mrel">=</span>
+            <span class="mopen">{</span>
+            <span class="mord mathrm">1</span>
+            <span class="mpunct">,</span>
+            <span class="mord mathrm">2</span>
+            <span class="mpunct">,</span>
+            <span class="mord mathrm">.</span>
+            <span class="mord mathrm">.</span>
+            <span class="mpunct">,</span>
+            <span class="mord mathit">n</span>
+            <span class="mclose">}</span>
+        </span>
+    </span>
+</span>`;
+
+    test('convertHTML', () => {
+        expect(convertHTML('<h1>Test</h1><p>test</p>')).toStrictEqual('# Test\n\ntest');
+        expect(convertHTML(Katex1)).toStrictEqual('$n$');
+        expect(convertHTML(Katex2)).toStrictEqual('$E={1,2,..,n}$');
+    });
+});