XML 是否区分大小写?
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Is XML case-sensitive?
提问by Ian
Short question
简短的问题
Is XML case-sensitive?
XML 是否区分大小写?
Longer question
更长的问题
For example:
例如:
<Shirt color="Red"/>
The attribute color is of type stringthat may contain a set of valid colors (Red, Blueand Green).
属性颜色的类型string可能包含一组有效颜色(Red、Blue和Green)。
To validate the XML, I used the following XSD:
为了验证 XML,我使用了以下 XSD:
<xs:simpleType name="ColorType">
<xs:restriction base="xs:string">
<xs:enumeration value="Red"/>
<xs:enumeration value="Blue"/>
<xs:enumeration value="Green"/>
</xs:restriction>
</xs:simpleType>
Am I expectedto accept different case variations of Red, Blue and Green? Or XML is widely accepted as case-sensitive?
我是否应该接受红色、蓝色和绿色的不同大小写变化?或者 XML 被广泛接受为区分大小写?
采纳答案by Jon Egerton
Short Answer:
简答:
Yes - XML is case sensitive.
是 - XML 区分大小写。
Longer Answer:
更长的答案:
It is widely accepted as case sensitive, however if you want to accept more flexibly, take a look at the question below, which discusses having case-insensitive enumerations:
它被广泛接受为区分大小写,但是如果您想更灵活地接受,请查看下面的问题,其中讨论了不区分大小写的枚举:
XML Schema Case Insensitive Enumeration of Simple Type String
回答by Michael Kay
With XSD 1.1 you can achieve a case-insensitive enumeration using an assertion:
使用 XSD 1.1,您可以使用断言实现不区分大小写的枚举:
<xs:simpleType name="RGB">
<xs:restriction base="xs:string">
<xs:assert test="lower-case($value) = ('red', 'green', 'blue')"/>
</xs:restriction>
</xs:simpleType>
XSD 1.1 is supported in recent releases of Saxon and Xerces.
最近版本的 Saxon 和 Xerces 支持 XSD 1.1。

