如何使用 xslt 2.0 或 3.0 对相邻的 xml 元素进行分组？

问：

我需要调整下面的 xslt 代码，以将与任何 p 相邻的元素（其名称属性包含“level_”作为子项）包装到前面的 p 中，后者在输出 xml 中转换为 li 标记。

下面是源 xml：

    <root>
    <header>Header text</header>
    <p name="paragraph">Normal Paragraph</p>
    <p name="level_1">Value 1</p>
    <p name="level_1">Value 2 table</p>
    <table frame="all" rowsep="1" colsep="1"   
    id="table_whs_jmk_hzb">
    <title>table1</title>
    <tgroup cols="2" align="center">
    <colspec colname="c1" colnum="1" colwidth="1*"/>
    <colspec colname="c2" colnum="2" colwidth="1*"/>
    <thead>
    <row>
    <entry>Header 1</entry>
    <entry>Header 2</entry>
    </row>
    </thead>
    <tbody>
    <row>
    <entry>Testing cell 1 text</entry>
    <entry>Testing cell 2</entry>
    </row>
    </tbody>
    </tgroup>
    </table>
    <p name="level_2">Value 3</p>
    <p name="level_2">Value 4</p>
    <p name="level_1">Value 5 note</p>
    <note>Another element</note>
    <p name="level_1">Another Value 1</p>
    <p name="level_2">Another Value 2</p>
    <p name="level_2">Another Value 3 reference</p>
    <reference>Some reference text</reference>
    <p name="level_3">Another Value 4</p>
    <p name="level_3">Another Value 5 example</p>
    <example>Example text goes here</example>
    <p name="level_4">Another Value 3 image</p>
    <image src="./output/media/img(1).jpg"/>
    <p name="level_4">Another Value 4</p>
    <p name="level_1">Another Value 5</p>
    <p name="level_1">Another Value 6</p>
</root>

所需的输出应如下所示：

   <root>
    <header>Header text</header>
    <p name="paragraph">Normal Paragraph</p>
    <ol outputclass="ol-level_1 ">
    <li outputclass="li-level_1 ">Value 1</li>
    <li outputclass="li-level_1 ">Value 2 table <table frame="all" 
    rowsep="1" colsep="1"
    id="table_whs_jmk_hzb">
    <title>table1</title>
    <tgroup cols="2" align="center">
    <colspec colname="c1" colnum="1" colwidth="1*"/>
    <colspec colname="c2" colnum="2" colwidth="1*"/>
    <thead>
    <row>
    <entry>Header 1</entry>
    <entry>Header 2</entry>
    </row>
    </thead>
    <tbody>
    <row>
    <entry>Testing cell 1 text</entry>
    <entry>Testing cell 2</entry>
    </row>
    </tbody>
    </tgroup>
    </table>
    <ol outputclass="ol-level-2 ">
    <li outputclass="li-level_2 ">Value 3</li>
    <li outputclass="li-level_2 ">Value 4</li>
    </ol>
    </li>
    <li outputclass="li-level_1 ">Value 5 note <note>Another   
    element</note>
    </li>
   <li outputclass="li-level_1 ">Another Value 1 
   <ol outputclass="ol-level-2 ">
   <li outputclass="li-level_2 ">Another Value 2</li>
   <li outputclass="li-level_2 ">Another Value 3 reference 
   <reference>Some reference text</reference>
   <ol outputclass="ol-level-3 ">
   <li outputclass="li-level_3 ">Another Value 4</li>
   <li outputclass="li-level_3 ">Another Value 5 example  
   <example>Example text goes here</example>
   <ol outputclass="ol-level-4 ">
   <li outputclass="li-level_4 ">Another Value 3 image 
   <image src="./output/media/img(1).jpg"/></li>
   <li outputclass="li-level_4 ">Another Value 4</li>
   </ol></li></ol></li></ol></li>
    <li outputclass="li-level_1 ">Another Value 5</li>
    <li outputclass="li-level_1 ">Another Value 6</li>
    </ol></root>

这是 @martin-honnen 提供的 xslt，我想对其进行修改以获得所需的输出：

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:mf="http://example.com/mf"
 exclude-result-prefixes="#all" version="3.0">
 <xsl:output method="xml" indent="yes"/>
 <xsl:function name="mf:group" as="node()*">
 <xsl:param name="items" as="element()*"/>
 <xsl:param name="level" as="xs:integer"/>
 <xsl:for-each-group select="$items" group-starting-with="p[@name = 'level_' || $level]">
 <xsl:choose>
 <xsl:when test="self::p[@name = 'level_' || $level]">
 <li outputclass="li-{@name}">
 <xsl:apply-templates/>
 <xsl:where-populated>
 <ol outputclass="ol-level-{$level + 1}">
 <xsl:sequence select="mf:group(tail(current-group()), $level + 1)"/>
 </ol>
 </xsl:where-populated>
 </li>
 </xsl:when>
 <xsl:otherwise>
 <xsl:sequence select="mf:group(current-group(), $level + 1)"/>
 </xsl:otherwise>
 </xsl:choose>
 </xsl:for-each-group>
 </xsl:function>
 <xsl:template match="root">
 <root>
 <xsl:copy-of select="header"/>
 <xsl:copy-of select="p[@name = 'paragraph']"/>
 <ol outputclass="ol-level_1 ">
 <xsl:sequence select="mf:group(p[@name = (1 to 6) ! ('level_' || .)], 1)"/>
 </ol>
 </root>
 </xsl:template>
 <!-- Templates for note, example, table, and image -->
 <xsl:template match="note | example | table | image">
 <xsl:copy-of select="."/>
 </xsl:template>
 </xsl:stylesheet>