Linq to Xml和自定义xml实体 [英] Linq to Xml and custom xml entities

问题描述

我想使用Linq to xml从表达式树创建MathML文档，但是我不知道如何使用MathML xml实体(例如⁡和& InvisibleTimes): 当我尝试使用直接创建XElement时

I want to create a MathML document from an expression tree using Linq to xml, but I cannot figure out how to use the MathML xml entities (such as ⁡ and &InvisibleTimes): When I try to create directly a XElement using

XElement xe = new XElement("mo", "&InvisibleTimes");

它只是逃离&符(这是不好的). 我也尝试使用XElement.Parse

it justs escapes the ampersand (which is no good). I also tried to use XElement.Parse

XElement xe = new XElement.Parse("<mo>&InvisibleTimes</mo>");

，但是它失败，并出现System.XmlException:对未声明的实体"InvisibleTimes"的引用 如何声明实体或忽略检查?

but it fails with an System.XmlException: Reference to undeclared entity 'InvisibleTimes' How can I declare the entity or ignore the checks?

推荐答案

正如其他人指出的那样，没有直接的方法可以做到这一点.

As others have pointed out, there is no direct way to do it.

也就是说，您可以尝试使用相应的unicode caracther.根据 http://www.w3.org/TR/MathML2/mmlalias.html ，对于ApplyFunction为02061，请尝试新的XElement("mo"，"\ u02061")

That said, you can try using the corresponding unicode caracther. According to http://www.w3.org/TR/MathML2/mmlalias.html, for ApplyFunction it is 02061, try new XElement("mo", "\u02061")

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