不允许空字符串的 XML 模式限制模式 [英] XML schema restriction pattern for not allowing empty strings

问题描述

在我的 XML 模式中，我有不想为空的字符串类型元素(如果它包含空格等，我也认为它是空的)

In my XML schema I have element of type string that I don't want to be empty (if it contains white-spaces etc I also consider it empty)

我在 http://blogs.msdn.com/b/neerajag/archive/2005/08/12/450723.aspx

<xsd:restriction base = "xsd:string">
  <xs:minLength value="1" />
  <xs:pattern value=".*[^\s].*" />
</xsd:restriction>

那个模式到底做了什么，会做什么我期望的?

What exactly does that pattern do and will do what I expect?

推荐答案

这不正是您想要的吗?

 <xs:restriction base="xs:token">
  <xs:minLength value="1"/>
 </xs:restriction>

如果字符串仅包含空格(换行、回车、制表符、前导和尾随空格)，处理器将删除它们，因此验证将失败；如果还有其他事情，验证就会成功.(但请注意:两个或多个空格的内部序列将被删除 - 请确保您对此感到满意)

If the string contains only whitespace (line feeds, carriage returns, tabs, leading and trailing spaces), the processor will remove them so validation will fail; if there's anything else, validation will succeed. (note though: internal sequences of two or more spaces will be removed - make sure you're ok with that)

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