Update WBBR frontend template collection
This commit is contained in:
Codex
185
app/markdown/page.tsx
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185
app/markdown/page.tsx
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"use client";
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import Link from "next/link";
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import { Fragment, ReactNode, useEffect, useMemo, useRef, useState } from "react";
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import data from "../data/content-templates.json";
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import styles from "./MarkdownEditor.module.css";
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type ViewMode = "edit" | "split" | "preview";
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type DocumentItem = (typeof data.documents)[number];
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export default function MarkdownEditorPage() {
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const [documents, setDocuments] = useState<DocumentItem[]>(data.documents);
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const [activeId, setActiveId] = useState(data.documents[0].id);
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const [contents, setContents] = useState<Record<string, string>>(() => Object.fromEntries(data.documents.map((doc) => [doc.id, doc.content])));
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const [view, setView] = useState<ViewMode>("split");
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const [query, setQuery] = useState("");
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const [saved, setSaved] = useState(true);
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const [toast, setToast] = useState("");
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const textareaRef = useRef<HTMLTextAreaElement>(null);
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useEffect(() => {
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try {
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const cached = window.localStorage.getItem("orbit-markdown-workspace");
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if (cached) {
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const parsed = JSON.parse(cached);
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if (parsed.contents) setContents((current) => ({ ...current, ...parsed.contents }));
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if (Array.isArray(parsed.documents)) setDocuments(parsed.documents);
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if (typeof parsed.activeId === "string") setActiveId(parsed.activeId);
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}
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} catch { /* use JSON defaults */ }
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}, []);
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useEffect(() => {
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setSaved(false);
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const timer = window.setTimeout(() => {
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window.localStorage.setItem("orbit-markdown-workspace", JSON.stringify({ documents, contents, activeId }));
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setSaved(true);
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}, 500);
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return () => window.clearTimeout(timer);
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}, [documents, contents, activeId]);
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const activeDocument = documents.find((doc) => doc.id === activeId) ?? documents[0];
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const content = contents[activeId] ?? "";
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const filteredDocuments = documents.filter((doc) => doc.title.toLowerCase().includes(query.toLowerCase()));
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const stats = useMemo(() => ({
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chars: content.replace(/\s/g, "").length,
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lines: content.split("\n").length,
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words: content.trim() ? content.trim().split(/\s+/).length : 0,
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}), [content]);
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const notify = (message: string) => {
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setToast(message);
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window.setTimeout(() => setToast(""), 2000);
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};
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const updateContent = (value: string) => setContents((current) => ({ ...current, [activeId]: value }));
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const insert = (before: string, placeholder = "文本", after = "") => {
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const textarea = textareaRef.current;
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if (!textarea) return;
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const start = textarea.selectionStart;
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const end = textarea.selectionEnd;
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const selected = content.slice(start, end) || placeholder;
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const next = `${content.slice(0, start)}${before}${selected}${after}${content.slice(end)}`;
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updateContent(next);
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window.requestAnimationFrame(() => {
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textarea.focus();
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textarea.setSelectionRange(start + before.length, start + before.length + selected.length);
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});
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};
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const createDocument = () => {
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const id = `md-${Date.now()}`;
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const newDocument: DocumentItem = { id, title: "未命名文档", category: "草稿", updated: "刚刚", content: "# 未命名文档\n\n开始写作……" };
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setDocuments((current) => [newDocument, ...current]);
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setContents((current) => ({ ...current, [id]: newDocument.content }));
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setActiveId(id);
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notify("已创建新文档");
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};
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const renameDocument = (title: string) => setDocuments((current) => current.map((doc) => doc.id === activeId ? { ...doc, title, updated: "刚刚" } : doc));
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const downloadDocument = () => {
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const blob = new Blob([content], { type: "text/markdown;charset=utf-8" });
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const url = URL.createObjectURL(blob);
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const link = window.document.createElement("a");
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link.href = url;
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link.download = `${activeDocument?.title || "document"}.md`;
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link.click();
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URL.revokeObjectURL(url);
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notify("Markdown 文件已导出");
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};
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return (
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<div className={styles.page}>
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<header className={styles.topbar}>
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<Link className={styles.brand} href="/"><span>M↓</span><strong>Paper</strong></Link>
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<nav><Link href="/simple-list">简单列表</Link><Link href="/character">角色详情</Link><Link className={styles.active} href="/markdown">Markdown 编辑器</Link></nav>
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<div className={styles.saveState}><i className={saved ? styles.saved : ""} />{saved ? "已自动保存" : "正在保存…"}</div>
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<div className={styles.headerActions}><button onClick={() => notify("协作成员面板为模板占位")}>＋ 协作</button><button className={styles.exportButton} onClick={downloadDocument}>导出 .md</button><span>林</span></div>
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</header>
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<div className={styles.workspace}>
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<aside className={styles.sidebar}>
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<div className={styles.sidebarHeader}><div><strong>我的文档</strong><small>{documents.length} 篇</small></div><button onClick={createDocument}>＋</button></div>
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<label className={styles.search}><span>⌕</span><input value={query} onChange={(event) => setQuery(event.target.value)} placeholder="搜索文档" /></label>
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<div className={styles.documentList}>
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<p>最近编辑</p>
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{filteredDocuments.map((doc) => <button key={doc.id} className={activeId === doc.id ? styles.documentActive : ""} onClick={() => setActiveId(doc.id)}><span>{doc.category === "草稿" ? "○" : "M"}</span><div><strong>{doc.title}</strong><small>{doc.category} · {doc.updated}</small></div><i>•••</i></button>)}
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{filteredDocuments.length === 0 && <div className={styles.noDocument}>没有匹配文档</div>}
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</div>
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<div className={styles.sidebarFooter}><Link href="/simple-list">▤ 内容资料库</Link><button onClick={() => notify("设置面板为模板占位")}>⚙ 编辑器设置</button></div>
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</aside>
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<main className={styles.editorArea}>
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<div className={styles.documentHeader}>
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<div><span>{activeDocument?.category || "文档"}</span><input value={activeDocument?.title || ""} onChange={(event) => renameDocument(event.target.value)} aria-label="文档标题" /></div>
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<div className={styles.viewSwitch}><button className={view === "edit" ? styles.viewActive : ""} onClick={() => setView("edit")}>编辑</button><button className={view === "split" ? styles.viewActive : ""} onClick={() => setView("split")}>分栏</button><button className={view === "preview" ? styles.viewActive : ""} onClick={() => setView("preview")}>预览</button></div>
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</div>
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<div className={styles.toolbar}>
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<div><button title="一级标题" onClick={() => insert("# ", "标题")}>H1</button><button title="二级标题" onClick={() => insert("## ", "标题")}>H2</button><button title="三级标题" onClick={() => insert("### ", "标题")}>H3</button></div>
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<i />
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<div><button title="粗体" onClick={() => insert("**", "粗体文本", "**")}><b>B</b></button><button title="斜体" onClick={() => insert("*", "斜体文本", "*")}><em>I</em></button><button title="删除线" onClick={() => insert("~~", "删除文本", "~~")}><s>S</s></button></div>
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<i />
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<div><button title="无序列表" onClick={() => insert("- ", "列表项")}>•≡</button><button title="有序列表" onClick={() => insert("1. ", "列表项")}>1≡</button><button title="引用" onClick={() => insert("> ", "引用内容")}>❞</button><button title="行内代码" onClick={() => insert("`", "代码", "`")}></></button><button title="链接" onClick={() => insert("[", "链接文字", "](https://example.com)")}>⌁</button><button title="分割线" onClick={() => insert("\n---\n", "")}>—</button></div>
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<span className={styles.toolbarHint}>Markdown · UTF-8</span>
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</div>
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<div className={`${styles.panes} ${styles[`view_${view}`]}`}>
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{view !== "preview" && <section className={styles.editorPane}>
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<div className={styles.lineNumbers}>{content.split("\n").map((_, index) => <span key={index}>{index + 1}</span>)}</div>
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<textarea ref={textareaRef} value={content} onChange={(event) => updateContent(event.target.value)} spellCheck={false} aria-label="Markdown 编辑区" />
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</section>}
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{view !== "edit" && <section className={styles.previewPane}><MarkdownPreview content={content} /></section>}
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</div>
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<footer className={styles.statusbar}><div><span>Ln {textareaRef.current ? content.slice(0, textareaRef.current.selectionStart).split("\n").length : 1}</span><span>{stats.lines} 行</span><span>{stats.chars} 字符</span><span>{stats.words} 词</span></div><div><span>Markdown</span><span>UTF-8</span><button onClick={() => notify("快捷键：Ctrl / Cmd + S 保存")}>⌨ 快捷键</button></div></footer>
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</main>
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</div>
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{toast && <div className={styles.toast}>✓ {toast}</div>}
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</div>
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);
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}
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function MarkdownPreview({ content }: { content: string }) {
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const lines = content.split("\n");
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let codeMode = false;
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const blocks: ReactNode[] = [];
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lines.forEach((line, index) => {
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if (line.trim().startsWith("```")) {
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codeMode = !codeMode;
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blocks.push(<div className={styles.codeFence} key={index}>{codeMode ? "CODE" : ""}</div>);
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return;
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}
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if (codeMode) { blocks.push(<code className={styles.codeLine} key={index}>{line || " "}</code>); return; }
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if (/^###\s/.test(line)) blocks.push(<h3 key={index}>{renderInline(line.slice(4))}</h3>);
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else if (/^##\s/.test(line)) blocks.push(<h2 key={index}>{renderInline(line.slice(3))}</h2>);
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else if (/^#\s/.test(line)) blocks.push(<h1 key={index}>{renderInline(line.slice(2))}</h1>);
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else if (/^>\s?/.test(line)) blocks.push(<blockquote key={index}>{renderInline(line.replace(/^>\s?/, ""))}</blockquote>);
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else if (/^---+$/.test(line.trim())) blocks.push(<hr key={index} />);
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else if (/^-\s/.test(line)) blocks.push(<div className={styles.unordered} key={index}><span>•</span><p>{renderInline(line.slice(2))}</p></div>);
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else if (/^\d+\.\s/.test(line)) blocks.push(<div className={styles.ordered} key={index}><span>{line.match(/^\d+/)?.[0]}.</span><p>{renderInline(line.replace(/^\d+\.\s/, ""))}</p></div>);
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else if (!line.trim()) blocks.push(<div className={styles.blank} key={index} />);
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else blocks.push(<p key={index}>{renderInline(line)}</p>);
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});
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return <article className={styles.markdownBody}>{blocks}</article>;
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}
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function renderInline(text: string): ReactNode {
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const token = /(\*\*.+?\*\*|~~.+?~~|`.+?`|\*.+?\*|\[[^\]]+\]\([^\)]+\))/g;
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return text.split(token).map((part, index) => {
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if (part.startsWith("**") && part.endsWith("**")) return <strong key={index}>{part.slice(2, -2)}</strong>;
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if (part.startsWith("~~") && part.endsWith("~~")) return <del key={index}>{part.slice(2, -2)}</del>;
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if (part.startsWith("`") && part.endsWith("`")) return <code key={index}>{part.slice(1, -1)}</code>;
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if (part.startsWith("*") && part.endsWith("*")) return <em key={index}>{part.slice(1, -1)}</em>;
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const link = part.match(/^\[([^\]]+)\]\(([^\)]+)\)$/);
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if (link) {
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const href = /^(https?:\/\/|#)/.test(link[2]) ? link[2] : "#";
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return <a key={index} href={href} target={href.startsWith("http") ? "_blank" : undefined} rel="noreferrer">{link[1]}</a>;
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}
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return <Fragment key={index}>{part}</Fragment>;
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});
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}
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