如何整理基于JavaScript的HTML代码 [英] How to tidy up HTML code based on JavaScript

问题描述

我正在编写一个可以整理HTML代码的JavaScript函数(目前无需整理JavaScript和CSS代码).

I am writing a JavaScript function which can tidy up HTML code (JavaScript and CSS code tidying is not necessary at the moment).

这是我的代码.并在 http://jsfiddle.net/2q26K/

function tidyHtml(html) {
    var html = html.trim().replace(/>[^<]+</gm, function ($1) {
        return '>' + $1.substr(1, $1.length - 2).trim() + '<';
    }).replace(/>\s+</gm, '><');
    var containerElement = document.createElement('div');
    containerElement.innerHTML = html;
    var result = containerElement.innerHTML;
    var findLevel = function (child, parent) {
        var level = 0;
        while (child != parent) {
            child = child.parentNode;
            level++;
        }
        return level;
    }
    Array.prototype.slice.call(containerElement.getElementsByTagName('*')).forEach(function (element) {
        var tabs = new Array(findLevel(element, containerElement) - 1).join('   '),
            tabs2 = (element.parentNode.lastChild == element) ? ('\n' + tabs.substring(0, tabs.length - 1)) : '',
            containerElement = document.createElement('div');
        containerElement.appendChild(element.cloneNode(true));
        result = result.replace(containerElement.innerHTML, '\n' + tabs + containerElement.innerHTML + tabs2);
    });
    return result;
}

在提供的示例中，它运行完美.

In the example provided, it works perfectly.

但是，有时，当HTML代码是这样的时候: http://jsfiddle.net/2q26K/1/

But, sometimes when HTML code is like that: http://jsfiddle.net/2q26K/1/

它拒绝更改

<div id="hlogo">
    <a href="/">Stack Overflow</a>ABC</div>

收件人

<div id="hlogo">
    <a href="/">Stack Overflow</a>ABC
</div>

我无法解决.它太复杂了.有没有一种更简单的方法可以完成相同的工作?

I cannot solve it. It's too complicated. Is there an easier method that can do the same thing?

如何改善我的代码?我可以从中学到什么例子?

How can I improve my code? What would be an example that I can learn from?

推荐答案

如果速度不是问题，则可以运行jQuery解析器(或者 Cheerio 和 Node.js ) HTML字符串，使用$(String).html()方法如此处所述.

If speed is not an issue, you could run a jQuery parser (alternatively Cheerio with Node.js) on your generated HTML string, using the $(String).html() method as explained here.

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