How can I access with JS nonstandard tags in a HTML page?_问答_开发者

How can I access with JS nonstandard tags in a HTML page?

开发者 https://www.devze.com 2023-02-01 08:39 出处：网络

I wish to develop some kind of external API which will include users putting some nonstandard tags on their pages (which I will then replace 开发者_如何学Pythonwith the correct HTML). For example:

相关专题：javascript xml

<body>
...
...
   <LMS:comments></LMS:comments>
...
...
...
</body>

Hoe can I target and replace the <LMS:comments></LMS:comments> part?

Just use getElementsByTagName as usual to get the element.

You cannot change the tag name, you will have to replace the entire element.

See http://jsfiddle.net/2vcjm/

You want to use regular expressions.

Take a look at this page to get started: http://www.regular-expressions.info/brackets.html

That whole website is a great reference.

If your document is valid XHTML (as opposed to just HTML), you can use XSLT to parse it.

There are JavaScript XSLT libraries, such as Google's AJAXSLT.

Barring that, you will need to extract the relevant part of the DOM, take the value of "innerHTML" for the contents, and replace the custom tags using JavaScript's regex and replace() function.

However, this sort of processing is usually done server-side, by passing your custom "HTML+" through some sort of templating/enrichment engine (which will also use XSLT or HTML parsers or worst case regexes).