XSL - 复制元素但删除未使用的命名空间 [英] XSL - copy elements but remove unused namespace(s)
问题描述
我有一些 XML 声明了一个仅用于属性的命名空间,如下所示:
I've got some XML which declares a namespace which is only used for attributes, like this:
<?xml version="1.0" encoding="UTF-8"?>
<a xmlns:x="http://tempuri.com">
<b>
<c x:att="true"/>
<d>hello</d>
</b>
</a>
我想使用 XSL 创建所选节点及其值的副本 - 删除属性.所以我想要的输出是:
I want to use XSL to create a copy of selected nodes and their values - getting rid of the attributes. So my desired output is:
<?xml version="1.0" encoding="UTF-8"?>
<b>
<c />
<d>hello</d>
</b>
我有一些几乎可以做到这一点的 XSL,但我似乎无法阻止它将命名空间声明放在输出的顶级元素中.我的 XSL 是:
I've got some XSL that almost does this, but I can't seem to stop it putting the namespace declaration in the top level element of the output. My XSL is:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:template match="/">
<xsl:apply-templates select="/a/b"/>
</xsl:template>
<xsl:template match="node()">
<xsl:copy>
<xsl:apply-templates select="node()"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
输出的第一个元素是 而不是
.我已经尝试在 XSL 中声明命名空间并将前缀放在
exclude-result-prefixes
列表中,但这似乎没有任何效果.我做错了什么?
The first element of the output is <b xmlns:x="http://tempuri.com">
instead of <b>
. I've tried declaring the namespace in the XSL and putting the prefix in the exclude-result-prefixes
list, but this doesn't seem to have any effect. What am I doing wrong?
更新:我发现通过在 XSL 中声明命名空间并使用 extension-element-prefixes
属性是可行的,但这似乎不对!我想我可以使用它,但我想知道为什么 exclude-result-prefixes
不起作用!
UPDATE: I've found that by declaring the namespace in the XSL and using the extension-element-prefixes
attribute works, but this doesn't seem right! I guess I could use this, but I'd like to know why the exclude-result-prefixes
doesn't work!
更新:实际上,这个 extension-element-prefixes
解决方案似乎只适用于 XMLSpy 的内置 XSLT 引擎,不适用于 MSXML.
UPDATE: Actually, it seems this extension-element-prefixes
solution only works with XMLSpy's built-in XSLT engine, not with MSXML.
推荐答案
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"
xmlns:x="http://tempuri.com">
<xsl:template match="/">
<xsl:apply-templates select="/a/b"/>
</xsl:template>
<xsl:template match="*">
<xsl:element name="{local-name(.)}">
<xsl:apply-templates/>
</xsl:element>
</xsl:template>
<xsl:template match="@*">
<xsl:copy/>
</xsl:template>
<!-- This empty template is not needed.
Neither is the xmlns declaration above:
<xsl:template match="@x:*"/> -->
</xsl:stylesheet>
我在此处找到了说明.
迈克尔·凯写道:
exclude-result-prefixes 只影响从文字结果元素的样式表,它不影响复制来自源文档的命名空间.
Michael Kay wrote:
exclude-result-prefixes only affects the namespaces copied from the stylesheet by a literal result element, it doesn't affect copying of namespaces from source documents.
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