共计 1376 个字符,预计需要花费 4 分钟才能阅读完成。
实现思路:
- 01 读取 md 和 css 内容
- 02 将上述读取进去的内容替换占位符,生成一个最终须要展的 Html 字符串
- 03 将上述的 Html 字符写入到指定的 Html 文件中
- 04 监听 md 文档内容的变经,而后更新 html 内容
- 05 应用 browser-sync 来实时显示 Html 内容
须要用到两个依赖包
{
"name": "04-md",
"version": "1.0.0",
"main": "index.js",
"license": "MIT",
"devDependencies": {
"browser-sync": "^2.27.9",
"marked": "^4.0.14"
}
}
实现代码
const fs = require("fs");
const path = require("path");
const {marked} = require("marked");
const browserSync = require("browser-sync");
let mdPath = path.join(__dirname, process.argv[2]);
let cssPath = path.resolve("github.css"); // 初始化款式
let htmlPath = mdPath.replace(path.extname(mdPath), ".html");
console.log(mdPath, cssPath, htmlPath);
// 监听
fs.watchFile(mdPath, (cur, pre) => {if (cur.mtime !== pre.mtime) {fs.readFile(mdPath, "utf-8", (err, data) => {
// 将 md-->html
let htmlStr = marked(data);
fs.readFile(cssPath, "utf-8", (err, data) => {
let retHtml = temp
.replace("{{content}}", htmlStr)
.replace("{{style}}", data);
// 将上述内容写入到指定的 html 文件中,用于在浏览器中展现
fs.writeFile(htmlPath, retHtml, (err) => {console.log("html create successful");
});
});
});
}
});
browserSync.init({
browser: "",
server: __dirname,
watch: true,
index: path.basename(htmlPath),
});
// html 模板
const temp = `
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<style>
.markdown-body {
box-sizing: border-box;
min-width: 200px;
max-width: 1000px;
margin: 0 auto;
padding: 45px;
}
@media (max-width: 750px) {
.markdown-body {padding: 15px;}
}
{{style}}
</style>
</head>
<body>
<div class="markdown-body">
{{content}}
</div>
</body>
</html>
`;
正文完