Update: support direct table paste from Excel

This commit is contained in:
2026-06-01 15:51:03 +00:00
parent a049f85809
commit de036639da
+116 -390
View File
@@ -3,439 +3,165 @@
<head> <head>
<meta charset="UTF-8"> <meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Excel Markdown 转换器</title> <title>Excel Markdown 表格</title>
<style> <script src="https://cdn.tailwindcss.com"></script>
* { box-sizing: border-box; margin: 0; padding: 0; } <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
<script>
:root { tailwind.config = {
--bg: #0f0f0f; theme: {
--surface: #1a1a1a; extend: {
--surface2: #252525; colors: {
--border: #333; primary: '#165DFF',
--text: #e0e0e0; secondary: '#64748b',
--text-dim: #888; },
--accent: #3b82f6;
--accent-hover: #60a5fa;
--success: #22c55e;
} }
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
background: var(--bg);
color: var(--text);
height: 100vh;
display: flex;
flex-direction: column;
} }
header {
padding: 14px 24px;
border-bottom: 1px solid var(--border);
display: flex;
align-items: center;
gap: 12px;
background: var(--surface);
} }
</script>
header h1 { <style type="text/tailwindcss">
font-size: 16px; @layer utilities {
font-weight: 600; .table-fixed-layout {
color: var(--text); table-layout: fixed;
} }
.paste-area table {
header p {
font-size: 13px;
color: var(--text-dim);
}
.toolbar {
margin-left: auto;
display: flex;
gap: 8px;
}
.btn {
padding: 6px 14px;
border-radius: 6px;
border: none;
font-size: 13px;
font-weight: 500;
cursor: pointer;
transition: all 0.15s;
}
.btn-primary {
background: var(--accent);
color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-ghost {
background: transparent;
color: var(--text-dim);
border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--surface2); color: var(--text); }
main {
flex: 1;
display: grid;
grid-template-columns: 1fr 1fr;
gap: 0;
overflow: hidden;
}
.panel {
display: flex;
flex-direction: column;
overflow: hidden;
}
.panel-left {
border-right: 1px solid var(--border);
}
.panel-header {
padding: 10px 16px;
background: var(--surface);
border-bottom: 1px solid var(--border);
font-size: 12px;
font-weight: 600;
text-transform: uppercase;
letter-spacing: 0.05em;
color: var(--text-dim);
display: flex;
align-items: center;
gap: 8px;
}
.panel-header .dot {
width: 6px; height: 6px;
border-radius: 50%;
background: var(--accent);
}
textarea {
flex: 1;
background: var(--surface);
color: var(--text);
border: none;
outline: none;
resize: none;
padding: 16px;
font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
font-size: 13px;
line-height: 1.6;
}
textarea::placeholder { color: var(--text-dim); }
.panel-right {
background: var(--surface);
}
.output-wrap {
flex: 1;
overflow-y: auto;
padding: 16px;
}
#output {
font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
font-size: 13px;
line-height: 1.7;
white-space: pre-wrap;
word-break: break-word;
}
.preview-toggle {
display: flex;
gap: 4px;
}
.preview-toggle button {
padding: 4px 10px;
border-radius: 4px;
border: 1px solid var(--border);
background: transparent;
color: var(--text-dim);
font-size: 12px;
cursor: pointer;
}
.preview-toggle button.active {
background: var(--accent);
color: #fff;
border-color: var(--accent);
}
.md-preview {
display: none;
}
.md-preview.active { display: block; }
table.md-table {
border-collapse: collapse; border-collapse: collapse;
width: 100%; width: 100%;
font-size: 13px;
} }
.paste-area td, .paste-area th {
table.md-table th, border: 1px solid #cbd5e1;
table.md-table td { padding: 6px 10px;
border: 1px solid var(--border); min-width: 80px;
padding: 6px 12px;
text-align: left;
} }
.paste-area th {
table.md-table th { background-color: #f1f5f9;
background: var(--surface2);
font-weight: 600;
} }
table.md-table tr:nth-child(even) td {
background: var(--bg);
} }
.status {
font-size: 11px;
color: var(--text-dim);
margin-left: auto;
}
.status.success { color: var(--success); }
</style> </style>
</head> </head>
<body> <body class="bg-slate-50 min-h-screen">
<div class="container mx-auto px-4 py-8 max-w-7xl">
<header class="text-center mb-8">
<h1 class="text-3xl font-bold text-slate-800 mb-2">
<i class="fa-solid fa-table text-primary mr-2"></i>Excel → Markdown 表格转换
</h1>
<p class="text-secondary">直接粘贴 Excel / 网页表格,左侧实时预览,右侧自动生成 Markdown</p>
</header>
<header> <div class="grid grid-cols-1 lg:grid-cols-2 gap-6">
<div> <!-- 左侧:可粘贴表格区域 -->
<h1>Excel → Markdown 转换器</h1> <div class="bg-white rounded-lg shadow p-5">
<p>粘贴 Excel 表格内容,自动生成 Markdown 表格</p> <div class="flex justify-between items-center mb-3">
<h2 class="text-xl font-semibold">表格预览</h2>
<button id="clearLeft" class="px-3 py-1.5 bg-slate-200 rounded hover:bg-slate-300 transition">
<i class="fa-solid fa-trash mr-1"></i>清空
</button>
</div> </div>
<div class="toolbar"> <div id="pasteArea" class="paste-area border border-slate-300 rounded p-3 h-[calc(100vh-240px)] overflow-auto bg-white">
<div class="preview-toggle"> <div class="text-slate-400 text-center py-10">在此粘贴 Excel 或网页表格内容</div>
<button id="btn-markdown" class="active">Markdown</button>
<button id="btn-preview">预览</button>
</div> </div>
<button class="btn btn-ghost" id="btn-copy">复制 Markdown</button>
<button class="btn btn-primary" id="btn-convert">转换</button>
</div>
</header>
<main>
<div class="panel panel-left">
<div class="panel-header">
<span class="dot"></span>
Excel / CSV 内容
<span class="status" id="status-left"></span>
</div>
<textarea
id="input"
placeholder="在这里粘贴 Excel 表格内容(支持从 Excel、Numbers、Google Sheets 直接粘贴)
💡 粘贴后会自动转换,也可以点击「转换」按钮手动触发"
></textarea>
</div> </div>
<div class="panel panel-right"> <!-- 右侧:Markdown 输出 -->
<div class="panel-header"> <div class="bg-white rounded-lg shadow p-5">
<span class="dot" style="background: var(--success)"></span> <div class="flex justify-between items-center mb-3">
Markdown 输出 <h2 class="text-xl font-semibold">Markdown 输出</h2>
<span class="status" id="status-right"></span> <button id="copyMd" class="px-3 py-1.5 bg-primary text-white rounded hover:opacity-90 transition">
<i class="fa-solid fa-copy mr-1"></i>复制
</button>
</div> </div>
<div class="output-wrap"> <pre id="mdOutput" class="border border-slate-300 rounded p-3 h-[calc(100vh-240px)] overflow-auto bg-slate-50 whitespace-pre-wrap"></pre>
<div id="output-raw" class="md-preview"></div>
<div id="output" class="md-preview active"></div>
</div> </div>
</div> </div>
</main>
<div class="mt-6 p-4 bg-white rounded shadow text-secondary">
<h3 class="font-semibold mb-2"><i class="fa-solid fa-circle-info text-primary mr-1"></i>使用说明</h3>
<ul class="list-disc pl-5 space-y-1">
<li>直接复制 Excel 或网页里的表格,粘贴到左侧区域</li>
<li>左侧会自动渲染成可视化表格,格式不会丢失</li>
<li>右侧实时生成标准 Markdown 表格</li>
<li>一键复制,可直接用于 Notion、GitHub、语雀、Obsidian</li>
</ul>
</div>
</div>
<script> <script>
const $ = id => document.getElementById(id); const pasteArea = document.getElementById('pasteArea');
const input = $('input'); const mdOutput = document.getElementById('mdOutput');
const outputRaw = $('output-raw'); const clearLeft = document.getElementById('clearLeft');
const output = $('output'); const copyMd = document.getElementById('copyMd');
const statusLeft = $('status-left');
const statusRight = $('status-right');
let convertMode = 'markdown'; // 'markdown' or 'preview' // 粘贴监听(核心)
pasteArea.addEventListener('paste', (e) => {
e.preventDefault();
const html = e.clipboardData.getData('text/html');
const text = e.clipboardData.getData('text');
function excelToMarkdown(text) { if (html && html.includes('<table')) {
const lines = text.trim().split('\n'); pasteArea.innerHTML = html;
if (lines.length === 0) return '';
const rows = lines.map(line => {
// Split by tab, handling quoted fields
const cells = [];
let current = '';
let inQuotes = false;
for (let i = 0; i < line.length; i++) {
const ch = line[i];
if (ch === '"') {
inQuotes = !inQuotes;
} else if (ch === '\t' && !inQuotes) {
cells.push(current.trim());
current = '';
} else { } else {
current += ch; pasteArea.innerHTML = textToTable(text);
} }
}
cells.push(current.trim()); setTimeout(renderMarkdown, 10);
return cells;
}); });
if (rows.length === 0) return ''; // 纯文本转表格(Excel 粘贴纯文本也能识别)
function textToTable(text) {
// Detect delimiter: try tab first, fall back to comma or semicolon const rows = text.trim().split(/\r?\n/).filter(i => i);
const firstRow = rows[0]; let html = '<table>';
const allTabs = rows.every(r => r.length === firstRow.length && firstRow.every(c => c.includes('\t') || c.trim() === ''));
// Normalize: handle if the split by tab didn't work well
// Fallback: split by comma if no tabs found
const normalizedRows = firstRow.length <= 1 && lines[0].includes(',')
? lines.map(line => line.split(',').map(c => c.trim().replace(/^"|"$/g, '')))
: rows;
const colCount = normalizedRows[0].length;
const justified = normalizedRows.map(row => {
while (row.length < colCount) row.push('');
return row.slice(0, colCount);
});
// Build markdown
const header = justified[0];
const separator = header.map(() => '---');
const mdRows = [header, separator, ...justified.slice(1)];
// Find max width per column
const colWidths = [];
for (let c = 0; c < colCount; c++) {
let max = 0;
for (let r = 0; r < mdRows.length; r++) {
const cell = mdRows[r][c] || '';
const len = cell.replace(/\|/g, '\\|').length;
if (len > max) max = len;
}
colWidths.push(max);
}
// Build the table string
const separatorRow = '| ' + colWidths.map(w => '-'.repeat(w)).join(' | ') + ' |';
const lines_out = mdRows.map((row, ri) => {
const cells = row.map((cell, ci) => {
const cleaned = cell.replace(/\|/g, '\\|');
const padded = ri === 1 ? separatorRow : (cleaned + ' '.repeat(colWidths[ci] - cleaned.replace(/\|/g, '\\|').length));
return padded;
});
return '| ' + cells.join(' | ') + ' |';
});
return lines_out.join('\n');
}
function renderMarkdownTable(markdown) {
const lines = markdown.split('\n').filter(l => l.trim());
if (lines.length < 2) return markdown;
// Simple markdown table renderer
const rows = [];
let header = [];
let inBody = false;
for (const line of lines) {
if (line.startsWith('|') && line.endsWith('|')) {
const cells = line.split('|').slice(1, -1).map(c => c.trim());
if (cells.every(c => c.match(/^-+$/))) {
inBody = true;
continue;
}
if (!inBody) {
header = cells;
} else {
rows.push(cells);
}
}
}
if (header.length === 0) return markdown;
let html = '<table class="md-table"><thead><tr>';
header.forEach(h => html += `<th>${escapeHtml(h)}</th>`);
html += '</tr></thead><tbody>';
rows.forEach(row => { rows.forEach(row => {
html += '<tr>'; html += '<tr>';
row.forEach(cell => html += `<td>${escapeHtml(cell)}</td>`); row.split('\t').forEach(cell => {
html += '<td>' + cell + '</td>';
});
html += '</tr>'; html += '</tr>';
}); });
html += '</tbody></table>'; html += '</table>';
return html; return html;
} }
function escapeHtml(str) { // 把左侧表格转成 Markdown
return str.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;'); function renderMarkdown() {
} const table = pasteArea.querySelector('table');
if (!table) {
function convert() { mdOutput.textContent = '请粘贴表格内容';
const text = input.value;
if (!text.trim()) {
output.textContent = '';
outputRaw.textContent = '';
statusRight.textContent = '';
return; return;
} }
const markdown = excelToMarkdown(text); let md = '';
outputRaw.textContent = markdown; const rows = table.querySelectorAll('tr');
output.innerHTML = renderMarkdownTable(markdown);
statusRight.textContent = '已转换'; rows.forEach((tr, idx) => {
statusRight.className = 'status success'; const cells = tr.querySelectorAll('td, th');
setTimeout(() => { statusRight.textContent = ''; statusRight.className = 'status'; }, 2000); const rowContent = Array.from(cells).map(c => c.innerText.trim());
md += '| ' + rowContent.join(' | ') + ' |\n';
// 表头分隔线
if (idx === 0) {
md += '| ' + rowContent.map(() => '---').join(' | ') + ' |\n';
}
});
mdOutput.textContent = md;
} }
// Auto-convert on paste // 清空
input.addEventListener('input', () => { clearLeft.addEventListener('click', () => {
statusLeft.textContent = input.value.split('\n').length + ' 行'; pasteArea.innerHTML = '<div class="text-slate-400 text-center py-10">在此粘贴 Excel 或网页表格内容</div>';
convert(); mdOutput.textContent = '';
}); });
// Manual convert // 复制
$('btn-convert').addEventListener('click', convert); copyMd.addEventListener('click', async () => {
const content = mdOutput.textContent;
// Copy if (!content.trim()) return alert('无内容可复制');
$('btn-copy').addEventListener('click', () => { await navigator.clipboard.writeText(content);
const text = outputRaw.textContent || output.textContent; copyMd.innerHTML = '<i class="fa-solid fa-check mr-1"></i>已复制';
if (!text) return; setTimeout(() => {
navigator.clipboard.writeText(text).then(() => { copyMd.innerHTML = '<i class="fa-solid fa-copy mr-1"></i>复制';
const btn = $('btn-copy'); }, 1500);
const orig = btn.textContent;
btn.textContent = '已复制!';
setTimeout(() => btn.textContent = orig, 1500);
});
});
// Toggle preview
$('btn-markdown').addEventListener('click', () => {
convertMode = 'markdown';
$('btn-markdown').classList.add('active');
$('btn-preview').classList.remove('active');
outputRaw.classList.add('active');
output.classList.remove('active');
});
$('btn-preview').addEventListener('click', () => {
convertMode = 'preview';
$('btn-preview').classList.add('active');
$('btn-markdown').classList.remove('active');
output.classList.add('active');
outputRaw.classList.remove('active');
}); });
</script> </script>
</body> </body>
</html> </html>