如何在不使用Javascript编码标签本身的情况下HTML编码可能具有html标签的文本
[英]How can I HTML encode text that may have html tags without encoding the tags themselves in Javascript
问题描述
Basically I have some text that may contain HTML tags but may also contain non-HTML encoded characters. 
基本上，我有一些文本可能包含HTML标记，但也可能包含非HTML编码的字符。
var doc = window.document.implementation.createDocument
('http://www.w3.org/1999/xhtml', 'html', null);
var text = '<head><script>somejs</script>' +
'<script>var x = 7; var y = 5; var foo = x < y;</script>' +
'</head><body></body>');
I wish to set text to an elements innerHTML attribute. 我希望将文本设置为一个元素innerHTML属性。 If I just do 如果我只是做
doc.getElementsByTagName('html')[0].innerHTML = text;
This causes a INVALID_STATE_ERR: DOM Exception 11 because of the less than sign between x and y. 由于x和y之间的小于号，这将导致INVALID_STATE_ERR：DOM异常11。
However, if I htmlEncode the variable text I get 但是，如果我对可变文本进行htmlEncode，则会得到
<head><script>somejs</script><script>var x = 7; var y = 5; var foo = x < y;</script></head><body></body>
And thus I lose all the tags which I need for the element to behave as desired once its innerHTML has been set. 因此，一旦设置了innerHTML，我就失去了元素所需的所有标记，这些标记才能使元素表现出所需的行为。 Is there any standard way to htmlencode the contents of all the tags in a string without encoding the tags themselves? 有没有一种标准的方法可以对字符串中所有标签的内容进行html编码而不对标签本身进行编码？
1 个解决方案
解决方案1
0 2012-02-02 20:34:38
For inline scripts you need to escape the string </script when followed by a space character, > , or / , else it would close the respective opening tag . 对于内联脚本，当后跟一个空格字符>或/ ，需要转义字符串</script ，否则它将关闭相应的开始标记 。
So, instead of </script> , you could use <\\/script> . 因此，代替</script>您可以使用<\\/script> This works: 这有效：
var text = '<head><script>somejs<\/script><script>var x = 7; var y = 5; var foo = x < y;<\/script></head><body></body>';
el.innerHTML = text;
Update: Now that you've edited your question, I see you're using XHTML! 更新：现在，您已经编辑了问题，我看到您正在使用XHTML！ That explains it — innerHTML doesn't work in XHTML. 这就解释了– innerHTML在XHTML中不起作用。
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