XML属性可以有空格吗? [英] Can XML attributes have spaces?

问题描述

我正在为xml文档创建 DTD .我有一个xml元素的枚举属性.我的问题是:属性 Type 可以有空格吗?

I'm creating a DTD for an xml document. I have an Enumerated attribute for an xml element. My question is: Can the attribute Type have spaces?

例如:

  <!ELEMENT Link (#PCDATA)>
  <!ATTLIST Link Type (Amendment|Reference|Superseded|Modified|
  Corrigendum|Corresponds|Endorsement|Equivalent|Identical|Modified|
  Not Equivalent|Note taken of|Related|Similar) "Reference">

所以我想要的是:

  <Link Type="Not Equivalent" \>

但是这似乎很荒唐.

我需要为太空做一些魔术伏都教吗?还是只是运气不好?

Is there some magic voodoo I need to do for spaces? Or is it just tough luck?

我看着很少

I looked in a few spots but couldn't see any reference

谢谢！

更新

对不起-当我说barf时，我的意思是当我尝试验证文档时(例如，在Web浏览器中打开它)，我收到一条错误消息:ATTLIST枚举中发现无效字符.处理资源'file:///C:/myxmldocument.xml'时出错....

Sorry - when I say barf, I mean that when I try to validate the document (Eg Open it in a web browser) I get an error message: Invalid character found in ATTLIST enumeration. Error processing resource 'file:///C:/myxmldocument.xml'. ...

推荐答案

简短的回答是否".Xml属性是名称标记，名称标记不能包含空格.相关规格已链接:

The short answer is no. Xml attributes are name tokens and name tokens cannot contain spaces. The relevant specs are linked:

属性

属性类型(请参见NotationType)

名称(请参见4a-NameChar)

无效字符是空格.您可以使用 '.'或使用-"作为分隔符.

The invalid character is the space. You can use '.' or '-' as a separator if you like.

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