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markdownFilter.html
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<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Markdown 过滤器</title>
<style>
body {
font-family: Arial, sans-serif;
line-height: 1.6;
margin: 0;
padding: 20px;
background-color: #f4f4f4;
}
.container {
max-width: 800px;
margin: 0 auto;
background-color: #fff;
padding: 20px;
border-radius: 5px;
box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
h1 {
text-align: center;
color: #333;
}
textarea {
width: 100%;
height: 200px;
margin-bottom: 10px;
padding: 10px;
border: 1px solid #ddd;
border-radius: 4px;
resize: vertical;
}
button {
display: block;
width: 100%;
padding: 10px;
background-color: #4CAF50;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 16px;
}
button:hover {
background-color: #45a049;
}
</style>
</head>
<body>
<div class="container">
<h1>Markdown 过滤器</h1>
<textarea id="input" placeholder="在这里粘贴您的 Markdown 内容..."></textarea>
<button onclick="filterMarkdown()">过滤</button>
<textarea id="output" placeholder="过滤后的内容将显示在这里..." readonly></textarea>
</div>
<script>
function filterMarkdown() {
const input = document.getElementById('input').value;
const output = document.getElementById('output');
let filtered = input;
// 移除 Jekyll 元数据
filtered = filtered.replace(/^---[\s\S]*?---/, '');
// 移除 HTML 标签
filtered = filtered.replace(/<[^>]*>/g, '');
// 移除图片
filtered = filtered.replace(/!\[.*?\]\(.*?\)/g, '');
// 移除链接，但保留链接文本
filtered = filtered.replace(/\[([^\]]+)\]\(.*?\)/g, '$1');
// 移除代码块
filtered = filtered.replace(/```[\s\S]*?```/g, '');
// 移除行内代码
filtered = filtered.replace(/`[^`\n]+`/g, '');
// 移除标题符号 (#)
filtered = filtered.replace(/^#{1,6}\s/gm, '');
// 移除列表符号
filtered = filtered.replace(/^[-*+]\s/gm, '');
// 移除数字列表
filtered = filtered.replace(/^\d+\.\s/gm, '');
// 移除引用符号
filtered = filtered.replace(/^>\s/gm, '');
// 移除水平线
filtered = filtered.replace(/^[-*_]{3,}\s*$/gm, '');
// 移除表格
filtered = filtered.replace(/^\|.*\|$/gm, '');
// 移除多余的空行
filtered = filtered.replace(/\n{3,}/g, '\n\n');
output.value = filtered.trim();
}
</script>
</body>
</html>