是否有对特殊字符/实体和innerHTML的任何规则？ [英] Are there any rules regarding special characters/entities and innerHTML?

问题描述

当我使用的innerHTML从JavaScript，浏览器（Safari和Firefox至少）似乎与他们的命名实体，以取代某些字符和数字实体。

When I use innerHTML from javascript, the browser (Safari and Firefox at least) seem to replace certain characters and numeric entities with their named entities.

字符 \\ XA0 （不换行空格）获取＆放替换，
 ＆放大器;＃60; （比小）得到由＆放大器更换; LT; 。但是，例如变音ü没有与替换＆放大器; uuml;

The character \xa0 (non breaking space) gets replaced by  , < (lesser than) gets replaced by <. But for example the umlaut ü is not replaced with ü.

我还没有发现这种行为的任何文档。

I have not found any documentation for this behaviour.

一个简单的演示：

<h2 id="withoutnbsp">This does not use en be es pe (uses the \xa0 character)</h2>
<script>alert(document.getElementById("withoutnbsp").innerHTML);</script>

一个更复杂的演示可以在这里找到：

A more elaborate demonstration can be found here:

http://gist.github.com/89434

您可以使用要点页面上的原始的链接，在浏览器中查看。

You can use the "raw" link on the gist page, to view it in your browser.

我需要确切的innerHTML替换的字符知道。任何帮助是AP preciated。谢谢你。

I need to know exactly which characters innerHTML replaces. Any help is appreciated. Thanks.

推荐答案

的HTML 5规范对序列化HTML片段规则，当你打电话的innerHTML就可以了，这里记载：的序列化的HTML片段的（注意innerHTML的不是在HTML 4规范，所以在HTML 5规范是当前参考）。

The HTML 5 spec has rules for serializing an HTML fragment when you call innerHTML on it, documented here: Serializing HTML fragments (note that innerHTML isn't in the HTML 4 spec, so the HTML 5 spec is the current reference).

规范的TLDR版本：空间，尖括号，＆号，等号与双引号时的innerHTML被称为是那些获得逃脱的唯一字符

TLDR version of the spec: Spaces, angle brackets, ampersands, equals signs and double quotes are the only chars that get escaped when innerHTML is called.

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