mirror of
https://git.boykissers.com/pawkey/pawkey-sk.git
synced 2025-12-20 04:04:16 +00:00
01a5300be8
this is not exactly great, but it should be "good enough" note that the new `group` function should not escape in the wild, as we don't document it and only use it internally I tried using `$[scale foo bar]` instead of `$[group foo bar]`, but that would be rendered as `<i>foo bar</i>` when sent over the network to non-misskey instances, and we don't want that
762 lines
19 KiB
TypeScript
762 lines
19 KiB
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import { URL } from 'node:url';
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import { Inject, Injectable } from '@nestjs/common';
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import * as parse5 from 'parse5';
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import { Window, XMLSerializer } from 'happy-dom';
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import { DI } from '@/di-symbols.js';
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import type { Config } from '@/config.js';
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import { intersperse } from '@/misc/prelude/array.js';
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import { normalizeForSearch } from '@/misc/normalize-for-search.js';
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import type { IMentionedRemoteUsers } from '@/models/Note.js';
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import { bindThis } from '@/decorators.js';
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import type { DefaultTreeAdapterMap } from 'parse5';
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import type * as mfm from '@transfem-org/sfm-js';
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const treeAdapter = parse5.defaultTreeAdapter;
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type Node = DefaultTreeAdapterMap['node'];
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type ChildNode = DefaultTreeAdapterMap['childNode'];
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const urlRegex = /^https?:\/\/[\w\/:%#@$&?!()\[\]~.,=+\-]+/;
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const urlRegexFull = /^https?:\/\/[\w\/:%#@$&?!()\[\]~.,=+\-]+$/;
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@Injectable()
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export class MfmService {
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constructor(
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@Inject(DI.config)
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private config: Config,
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) {
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}
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@bindThis
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public fromHtml(html: string, hashtagNames?: string[]): string {
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// some AP servers like Pixelfed use br tags as well as newlines
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html = html.replace(/<br\s?\/?>\r?\n/gi, '\n');
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const normalizedHashtagNames = hashtagNames == null ? undefined : new Set<string>(hashtagNames.map(x => normalizeForSearch(x)));
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const dom = parse5.parseFragment(html);
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let text = '';
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for (const n of dom.childNodes) {
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analyze(n);
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}
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return text.trim();
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function getText(node: Node): string {
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if (treeAdapter.isTextNode(node)) return node.value;
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if (!treeAdapter.isElementNode(node)) return '';
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if (node.nodeName === 'br') return '\n';
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if (node.childNodes) {
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return node.childNodes.map(n => getText(n)).join('');
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}
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return '';
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}
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function appendChildren(childNodes: ChildNode[]): void {
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if (childNodes) {
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for (const n of childNodes) {
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analyze(n);
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}
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}
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}
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function analyze(node: Node) {
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if (treeAdapter.isTextNode(node)) {
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text += node.value;
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return;
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}
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// Skip comment or document type node
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if (!treeAdapter.isElementNode(node)) {
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return;
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}
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switch (node.nodeName) {
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case 'br': {
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text += '\n';
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break;
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}
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case 'a': {
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const txt = getText(node);
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const rel = node.attrs.find(x => x.name === 'rel');
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const href = node.attrs.find(x => x.name === 'href');
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// ハッシュタグ
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if (normalizedHashtagNames && href && normalizedHashtagNames.has(normalizeForSearch(txt))) {
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text += txt;
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// メンション
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} else if (txt.startsWith('@') && !(rel && rel.value.startsWith('me '))) {
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const part = txt.split('@');
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if (part.length === 2 && href) {
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//#region ホスト名部分が省略されているので復元する
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const acct = `${txt}@${(new URL(href.value)).hostname}`;
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text += acct;
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//#endregion
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} else if (part.length === 3) {
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text += txt;
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}
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// その他
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} else {
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const generateLink = () => {
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if (!href && !txt) {
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return '';
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}
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if (!href) {
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return txt;
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}
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if (!txt || txt === href.value) { // #6383: Missing text node
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if (href.value.match(urlRegexFull)) {
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return href.value;
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} else {
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return `<${href.value}>`;
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}
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}
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if (href.value.match(urlRegex) && !href.value.match(urlRegexFull)) {
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return `[${txt}](<${href.value}>)`; // #6846
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} else {
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return `[${txt}](${href.value})`;
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}
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};
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text += generateLink();
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}
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break;
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}
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case 'h1': {
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text += '**【';
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appendChildren(node.childNodes);
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text += '】**\n';
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break;
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}
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case 'h2':
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case 'h3': {
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text += '**';
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appendChildren(node.childNodes);
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text += '**\n';
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break;
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}
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case 'b':
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case 'strong': {
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text += '**';
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appendChildren(node.childNodes);
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text += '**';
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break;
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}
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case 'small': {
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text += '<small>';
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appendChildren(node.childNodes);
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text += '</small>';
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break;
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}
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case 's':
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case 'del': {
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text += '~~';
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appendChildren(node.childNodes);
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text += '~~';
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break;
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}
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case 'i':
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case 'em': {
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text += '<i>';
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appendChildren(node.childNodes);
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text += '</i>';
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break;
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}
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// block code (<pre><code>)
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case 'pre': {
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if (node.childNodes.length === 1 && node.childNodes[0].nodeName === 'code') {
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text += '\n```\n';
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text += getText(node.childNodes[0]);
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text += '\n```\n';
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} else {
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appendChildren(node.childNodes);
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}
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break;
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}
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// inline code (<code>)
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case 'code': {
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text += '`';
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appendChildren(node.childNodes);
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text += '`';
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break;
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}
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case 'blockquote': {
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const t = getText(node);
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if (t) {
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text += '\n> ';
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text += t.split('\n').join('\n> ');
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}
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break;
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}
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case 'p':
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case 'h4':
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case 'h5':
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case 'h6': {
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text += '\n\n';
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appendChildren(node.childNodes);
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break;
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}
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// other block elements
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case 'div':
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case 'header':
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case 'footer':
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case 'article':
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case 'li':
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case 'dt':
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case 'dd': {
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text += '\n';
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appendChildren(node.childNodes);
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break;
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}
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case 'rp': break
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case 'rt': {
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appendChildren(node.childNodes);
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break;
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}
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case 'ruby': {
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if (node.childNodes) {
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/*
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we get:
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```
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<ruby>
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some text <rp>(</rp> <rt>annotation</rt> <rp>)</rp>
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more text <rt>more annotation<rt>
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</ruby>
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```
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and we want to produce:
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```
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$[ruby $[group some text] annotation]
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$[ruby $[group more text] more annotation]
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```
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that `group` is a hack, because when the `ruby` render
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sees just text inside the `$[ruby]`, it splits on
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whitespace, considers the first "word" to be the main
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content, and the rest the annotation
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with that `group`, we force it to consider the whole
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group as the main content
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(note that the `rp` are to be ignored, they only exist
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for browsers who don't understand ruby)
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*/
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let nonRtNodes=[];
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// scan children, ignore `rp`, split on `rt`
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for (const child of node.childNodes) {
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if (treeAdapter.isTextNode(child)) {
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nonRtNodes.push(child);
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continue;
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}
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if (!treeAdapter.isElementNode(child)) {
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continue;
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}
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if (child.nodeName == 'rp') {
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continue;
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}
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if (child.nodeName == 'rt') {
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text += '$[ruby $[group ';
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appendChildren(nonRtNodes);
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text += '] ';
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analyze(child);
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text += '] ';
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nonRtNodes=[];
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continue;
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}
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nonRtNodes.push(child);
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}
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}
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break;
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}
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default: // includes inline elements
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{
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appendChildren(node.childNodes);
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break;
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}
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}
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}
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}
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@bindThis
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public toHtml(nodes: mfm.MfmNode[] | null, mentionedRemoteUsers: IMentionedRemoteUsers = []) {
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if (nodes == null) {
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return null;
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}
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const { happyDOM, window } = new Window();
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const doc = window.document;
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const body = doc.createElement('p');
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function appendChildren(children: mfm.MfmNode[], targetElement: any): void {
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if (children) {
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for (const child of children.map(x => (handlers as any)[x.type](x))) targetElement.appendChild(child);
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}
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}
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function fnDefault(node: mfm.MfmFn) {
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const el = doc.createElement('i');
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appendChildren(node.children, el);
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return el;
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}
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const handlers: { [K in mfm.MfmNode['type']]: (node: mfm.NodeType<K>) => any } = {
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bold: (node) => {
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const el = doc.createElement('b');
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appendChildren(node.children, el);
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return el;
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},
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small: (node) => {
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const el = doc.createElement('small');
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appendChildren(node.children, el);
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return el;
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},
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strike: (node) => {
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const el = doc.createElement('del');
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appendChildren(node.children, el);
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return el;
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},
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italic: (node) => {
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const el = doc.createElement('i');
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appendChildren(node.children, el);
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return el;
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},
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fn: (node) => {
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switch (node.props.name) {
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case 'unixtime': {
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const text = node.children[0].type === 'text' ? node.children[0].props.text : '';
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try {
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const date = new Date(parseInt(text, 10) * 1000);
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const el = doc.createElement('time');
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el.setAttribute('datetime', date.toISOString());
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el.textContent = date.toISOString();
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return el;
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} catch (err) {
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return fnDefault(node);
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}
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}
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case 'ruby': {
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if (node.children.length === 1) {
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const child = node.children[0];
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const text = child.type === 'text' ? child.props.text : '';
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const rubyEl = doc.createElement('ruby');
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const rtEl = doc.createElement('rt');
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// ruby未対応のHTMLサニタイザーを通したときにルビが「劉備（りゅうび）」となるようにする
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const rpStartEl = doc.createElement('rp');
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rpStartEl.appendChild(doc.createTextNode('('));
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const rpEndEl = doc.createElement('rp');
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rpEndEl.appendChild(doc.createTextNode(')'));
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rubyEl.appendChild(doc.createTextNode(text.split(' ')[0]));
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rtEl.appendChild(doc.createTextNode(text.split(' ')[1]));
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rubyEl.appendChild(rpStartEl);
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rubyEl.appendChild(rtEl);
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rubyEl.appendChild(rpEndEl);
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return rubyEl;
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} else {
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const rt = node.children.at(-1);
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if (!rt) {
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return fnDefault(node);
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}
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const text = rt.type === 'text' ? rt.props.text : '';
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const rubyEl = doc.createElement('ruby');
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const rtEl = doc.createElement('rt');
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// ruby未対応のHTMLサニタイザーを通したときにルビが「劉備（りゅうび）」となるようにする
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const rpStartEl = doc.createElement('rp');
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rpStartEl.appendChild(doc.createTextNode('('));
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const rpEndEl = doc.createElement('rp');
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rpEndEl.appendChild(doc.createTextNode(')'));
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appendChildren(node.children.slice(0, node.children.length - 1), rubyEl);
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rtEl.appendChild(doc.createTextNode(text.trim()));
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rubyEl.appendChild(rpStartEl);
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rubyEl.appendChild(rtEl);
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rubyEl.appendChild(rpEndEl);
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return rubyEl;
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}
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}
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case 'group': { // this is mostly a hack for `ruby`
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const el = doc.createElement('span');
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appendChildren(node.children, el);
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return el;
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}
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default: {
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return fnDefault(node);
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}
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}
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},
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blockCode: (node) => {
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const pre = doc.createElement('pre');
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const inner = doc.createElement('code');
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inner.textContent = node.props.code;
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pre.appendChild(inner);
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return pre;
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},
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center: (node) => {
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const el = doc.createElement('div');
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appendChildren(node.children, el);
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return el;
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},
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emojiCode: (node) => {
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return doc.createTextNode(`\u200B:${node.props.name}:\u200B`);
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},
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unicodeEmoji: (node) => {
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return doc.createTextNode(node.props.emoji);
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},
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hashtag: (node) => {
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const a = doc.createElement('a');
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a.setAttribute('href', `${this.config.url}/tags/${node.props.hashtag}`);
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a.textContent = `#${node.props.hashtag}`;
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a.setAttribute('rel', 'tag');
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return a;
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},
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inlineCode: (node) => {
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const el = doc.createElement('code');
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el.textContent = node.props.code;
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return el;
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},
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mathInline: (node) => {
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const el = doc.createElement('code');
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el.textContent = node.props.formula;
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return el;
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},
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mathBlock: (node) => {
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const el = doc.createElement('code');
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el.textContent = node.props.formula;
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return el;
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},
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link: (node) => {
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const a = doc.createElement('a');
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a.setAttribute('href', node.props.url);
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appendChildren(node.children, a);
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return a;
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},
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mention: (node) => {
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const a = doc.createElement('a');
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const { username, host, acct } = node.props;
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const remoteUserInfo = mentionedRemoteUsers.find(remoteUser => remoteUser.username.toLowerCase() === username.toLowerCase() && remoteUser.host?.toLowerCase() === host?.toLowerCase());
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a.setAttribute('href', remoteUserInfo
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? (remoteUserInfo.url ? remoteUserInfo.url : remoteUserInfo.uri)
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: `${this.config.url}/${acct.endsWith(`@${this.config.url}`) ? acct.substring(0, acct.length - this.config.url.length - 1) : acct}`);
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a.className = 'u-url mention';
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a.textContent = acct;
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return a;
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},
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quote: (node) => {
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const el = doc.createElement('blockquote');
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appendChildren(node.children, el);
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return el;
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},
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text: (node) => {
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if (!node.props.text.match(/[\r\n]/)) {
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return doc.createTextNode(node.props.text);
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}
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const el = doc.createElement('span');
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const nodes = node.props.text.split(/\r\n|\r|\n/).map(x => doc.createTextNode(x));
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for (const x of intersperse<FIXME | 'br'>('br', nodes)) {
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el.appendChild(x === 'br' ? doc.createElement('br') : x);
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}
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return el;
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},
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url: (node) => {
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const a = doc.createElement('a');
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a.setAttribute('href', node.props.url);
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a.textContent = node.props.url;
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return a;
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},
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search: (node) => {
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const a = doc.createElement('a');
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a.setAttribute('href', `https://www.google.com/search?q=${node.props.query}`);
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a.textContent = node.props.content;
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return a;
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},
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plain: (node) => {
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const el = doc.createElement('span');
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appendChildren(node.children, el);
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return el;
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},
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};
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appendChildren(nodes, body);
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const serialized = new XMLSerializer().serializeToString(body);
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happyDOM.close().catch(err => {});
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return serialized;
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}
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// the toMastoApiHtml function was taken from Iceshrimp and written by zotan and modified by marie to work with the current MK version
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@bindThis
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public async toMastoApiHtml(nodes: mfm.MfmNode[] | null, mentionedRemoteUsers: IMentionedRemoteUsers = [], inline = false, quoteUri: string | null = null) {
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if (nodes == null) {
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return null;
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}
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const { happyDOM, window } = new Window();
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||
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const doc = window.document;
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const body = doc.createElement('p');
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||
|
||
async function appendChildren(children: mfm.MfmNode[], targetElement: any): Promise<void> {
|
||
if (children) {
|
||
for (const child of await Promise.all(children.map(async (x) => await (handlers as any)[x.type](x)))) targetElement.appendChild(child);
|
||
}
|
||
}
|
||
|
||
const handlers: {
|
||
[K in mfm.MfmNode['type']]: (node: mfm.NodeType<K>) => any;
|
||
} = {
|
||
async bold(node) {
|
||
const el = doc.createElement('span');
|
||
el.textContent = '**';
|
||
await appendChildren(node.children, el);
|
||
el.textContent += '**';
|
||
return el;
|
||
},
|
||
|
||
async small(node) {
|
||
const el = doc.createElement('small');
|
||
await appendChildren(node.children, el);
|
||
return el;
|
||
},
|
||
|
||
async strike(node) {
|
||
const el = doc.createElement('span');
|
||
el.textContent = '~~';
|
||
await appendChildren(node.children, el);
|
||
el.textContent += '~~';
|
||
return el;
|
||
},
|
||
|
||
async italic(node) {
|
||
const el = doc.createElement('span');
|
||
el.textContent = '*';
|
||
await appendChildren(node.children, el);
|
||
el.textContent += '*';
|
||
return el;
|
||
},
|
||
|
||
async fn(node) {
|
||
const el = doc.createElement('span');
|
||
el.textContent = '*';
|
||
await appendChildren(node.children, el);
|
||
el.textContent += '*';
|
||
return el;
|
||
},
|
||
|
||
blockCode(node) {
|
||
const pre = doc.createElement('pre');
|
||
const inner = doc.createElement('code');
|
||
|
||
const nodes = node.props.code
|
||
.split(/\r\n|\r|\n/)
|
||
.map((x) => doc.createTextNode(x));
|
||
|
||
for (const x of intersperse<FIXME | 'br'>('br', nodes)) {
|
||
inner.appendChild(x === 'br' ? doc.createElement('br') : x);
|
||
}
|
||
|
||
pre.appendChild(inner);
|
||
return pre;
|
||
},
|
||
|
||
async center(node) {
|
||
const el = doc.createElement('div');
|
||
await appendChildren(node.children, el);
|
||
return el;
|
||
},
|
||
|
||
emojiCode(node) {
|
||
return doc.createTextNode(`\u200B:${node.props.name}:\u200B`);
|
||
},
|
||
|
||
unicodeEmoji(node) {
|
||
return doc.createTextNode(node.props.emoji);
|
||
},
|
||
|
||
hashtag: (node) => {
|
||
const a = doc.createElement('a');
|
||
a.setAttribute('href', `${this.config.url}/tags/${node.props.hashtag}`);
|
||
a.textContent = `#${node.props.hashtag}`;
|
||
a.setAttribute('rel', 'tag');
|
||
a.setAttribute('class', 'hashtag');
|
||
return a;
|
||
},
|
||
|
||
inlineCode(node) {
|
||
const el = doc.createElement('code');
|
||
el.textContent = node.props.code;
|
||
return el;
|
||
},
|
||
|
||
mathInline(node) {
|
||
const el = doc.createElement('code');
|
||
el.textContent = node.props.formula;
|
||
return el;
|
||
},
|
||
|
||
mathBlock(node) {
|
||
const el = doc.createElement('code');
|
||
el.textContent = node.props.formula;
|
||
return el;
|
||
},
|
||
|
||
async link(node) {
|
||
const a = doc.createElement('a');
|
||
a.setAttribute('rel', 'nofollow noopener noreferrer');
|
||
a.setAttribute('target', '_blank');
|
||
a.setAttribute('href', node.props.url);
|
||
await appendChildren(node.children, a);
|
||
return a;
|
||
},
|
||
|
||
async mention(node) {
|
||
const { username, host, acct } = node.props;
|
||
const resolved = mentionedRemoteUsers.find(remoteUser => remoteUser.username === username && remoteUser.host === host);
|
||
|
||
const el = doc.createElement('span');
|
||
if (!resolved) {
|
||
el.textContent = acct;
|
||
} else {
|
||
el.setAttribute('class', 'h-card');
|
||
el.setAttribute('translate', 'no');
|
||
const a = doc.createElement('a');
|
||
a.setAttribute('href', resolved.url ? resolved.url : resolved.uri);
|
||
a.className = 'u-url mention';
|
||
const span = doc.createElement('span');
|
||
span.textContent = resolved.username || username;
|
||
a.textContent = '@';
|
||
a.appendChild(span);
|
||
el.appendChild(a);
|
||
}
|
||
|
||
return el;
|
||
},
|
||
|
||
async quote(node) {
|
||
const el = doc.createElement('blockquote');
|
||
await appendChildren(node.children, el);
|
||
return el;
|
||
},
|
||
|
||
text(node) {
|
||
const el = doc.createElement('span');
|
||
const nodes = node.props.text
|
||
.split(/\r\n|\r|\n/)
|
||
.map((x) => doc.createTextNode(x));
|
||
|
||
for (const x of intersperse<FIXME | 'br'>('br', nodes)) {
|
||
el.appendChild(x === 'br' ? doc.createElement('br') : x);
|
||
}
|
||
|
||
return el;
|
||
},
|
||
|
||
url(node) {
|
||
const a = doc.createElement('a');
|
||
a.setAttribute('rel', 'nofollow noopener noreferrer');
|
||
a.setAttribute('target', '_blank');
|
||
a.setAttribute('href', node.props.url);
|
||
a.textContent = node.props.url.replace(/^https?:\/\//, '');
|
||
return a;
|
||
},
|
||
|
||
search: (node) => {
|
||
const a = doc.createElement('a');
|
||
a.setAttribute('href', `https://www.google.com/search?q=${node.props.query}`);
|
||
a.textContent = node.props.content;
|
||
return a;
|
||
},
|
||
|
||
async plain(node) {
|
||
const el = doc.createElement('span');
|
||
await appendChildren(node.children, el);
|
||
return el;
|
||
},
|
||
};
|
||
|
||
await appendChildren(nodes, body);
|
||
|
||
if (quoteUri !== null) {
|
||
const a = doc.createElement('a');
|
||
a.setAttribute('href', quoteUri);
|
||
a.textContent = quoteUri.replace(/^https?:\/\//, '');
|
||
|
||
const quote = doc.createElement('span');
|
||
quote.setAttribute('class', 'quote-inline');
|
||
quote.appendChild(doc.createElement('br'));
|
||
quote.appendChild(doc.createElement('br'));
|
||
quote.innerHTML += 'RE: ';
|
||
quote.appendChild(a);
|
||
|
||
body.appendChild(quote);
|
||
}
|
||
|
||
let result = new XMLSerializer().serializeToString(body);
|
||
|
||
if (inline) {
|
||
result = result.replace(/^<p>/, '').replace(/<\/p>$/, '');
|
||
}
|
||
|
||
happyDOM.close().catch(e => {});
|
||
|
||
return result;
|
||
}
|
||
}
|