HTML类中的管道字符 [英] Pipe Chars in HTML Classes

问题描述

我在W3C文档中找不到任何不允许使用管道字符 | 的内容，例如:

I couldn't find anything in the W3C docs that said pipe chars, |, aren't allowed, for instance:

<div class="class1|class2">

不用担心我会用它做什么.我只是想知道它是否合法".

Don't worry about what I might be using it for. I was just wondering if it's "legal".

推荐答案

相关规则可以在 w3c同步数据标记化部分，尽管很难从那里得出管道是否有效的信息，乍一看似乎对选择器来说任何东西都是有效的，即:

The relevant rules can be found in w3c syndata tokenization section, though it's pretty difficult to conclude from there if pipe is valid or not, as per a glance, it seems that anything is valid for a selector, i.e.:

selector    : any+;
any         : [ IDENT | NUMBER | PERCENTAGE | DIMENSION | STRING
              | DELIM | URI | HASH | UNICODE-RANGE | INCLUDES
              | DASHMATCH | ':' | FUNCTION S* any* ')' 
              | '(' S* any* ')' | '[' S* any* ']' ] S*;

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