如何动态更改 xsl:output 方法属性值? [英] How to dynamically change xsl:output method attribute value?

问题描述

我想使用相同的 xslt 并针对不同的输出进行测试，即 xml、html、xhtml 和文本；我当然是这样做的:

I want to use the same xslt and test against different outputs, i e, xml, html, xhtml and text; of course I'm doing this:

<xsl:output method="xml" indent="yes"/>

或

<xsl:output method="html" indent="yes"/>

但我想通过通知参数动态更改，如果我省略它，则默认为 xml.

But I want to dynamically change through an informed parameter, defaulting to xml if I omite it.

我试过了:

<xsl:param name="outputMethod" select="xml" />  
<xsl:output method="$outputMethod"indent="yes"/>

没有成功，输出为:

 XTSE0020: Invalid value for serialization method: must be
  xml|html|xhtml|text|json|adaptive, or a QName in '{uri}local' form

并尝试了这种更复杂的方法，我知道:

and tried this much more convoluted way, I know:

<xsl:variable name="thisDocument" select="document('')" /> 
<xsl:param name="outputMethod" select="xml" />  
<xsl:variable name="myOutputMethod" select="$outputMethod"/>
<xsl:output method="$thisDocument/xsl:stylesheet/myOutputMethod" indent="yes"/>

也没有成功，输出是:

Static error at xsl:output on line 10 column 85 of CopyingNodes.xslt:
  XTSE0020: Both the prefix {$thisDocument/xsl} and the local part
  {stylesheet/myOutputMethod} are invalid
Errors were reported during stylesheet compilation

那么，有什么更正吗?建议?

So, any corrections? suggestions?

还是不能动态改变xsl:output方法?

Or is it impossible to dynamically change xsl:output method?

TIA

推荐答案

使用 xsl:result-document:

<xsl:param name="method" select="'xml'"/>

<xsl:output indent="yes"/>

<xsl:template name="xsl:initial-template">
   <xsl:result-document method="{$method}">
      <!-- your code here -->
   </xsl:result-document>
</xsl:template>

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