在 XSLT 中使 ul li 结构内标题节点的 TOC

问：

总体概览

我尝试通过仅选择他的标题节点（如 h1、h2）来制作文档的目录 （TOC） ......h9 （）。h[0-9]

这些标题节点应该以级联结构进行结构 - 结构，其中所有依赖 an 的节点都应该包含在 的 中。<ul><li><hN+1><hN><ul><li><hN>

例

为了更明确，让我们看看这个例子。如果我有以下文件：document.xsl

<?xml version="1.0" encoding="UTF-8"?>

<document>
<h1>Lorem <i>arepo</i> ipsum dolor</h1>
<h2>Lorem ipsum dolor</h2>
<p>
Sed ut <i>perspiciatis</i> unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?
</p>

<h1>sit amet et consectetur</h1>
<h2>Quia adipit</h2>
<h3>aliquam quaerat</h3>
<p>
Sed ut <i>perspiciatis</i> unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?
</p>
<h2>Erit et nunquam</h2>

</document>

那么预期的渲染应该是：

<ul>
    <li>
        <span>Lorem <i>arepo</i> ispum dolor</span>
        <ul>
            <li><span>Lorem ipsum dolor</span></li>
        </ul>
    <li>
    <li>
        <span>Sit amet et consectetur</span>
        <ul>
            <li>
                <span>Quia adipit</span>
                <ul>
                    <li>
                    <span>aliquam quaerat</span>
                    </li>
                <ul>
            </li>
            <li><span>Erit et nunquam</span></li>
        </ul>
    <li>
</ul>

最小的工作示例

目前，我有这个maketoc.xslt

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
  <xsl:output method="xml" indent="yes"/>
  
  <xsl:template match="document">
    <ul>
      <xsl:apply-templates select="*[self::h1 | self::h2 | self::h3 | self::h4 | self::h5 | self::h6 | self::h7 | self::h8 | self::h9]"/>
    </ul>
  </xsl:template>
  
  <xsl:template match="h1 | h2 | h3 | h4 | h5 | h6 | h7 | h8 | h9">
    <li>
      <span><xsl:value-of select="."/></span>
      <ul>
        <xsl:apply-templates select="following-sibling::*[1][self::h1 | self::h2 | self::h3 | self::h4 | self::h5 | self::h6 | self::h7 | self::h8 | self::h9]"/>
      </ul>
    </li>
  </xsl:template>
  
  <!-- Ignor anything else -->
  <xsl:template match="*"/>
</xsl:stylesheet>

当前渲染

但是，这个 MWE 生成以下输出：

<ul>
   <li>
      <span>Lorem arepo ipsum dolor</span>
      <ul>
         <li>
            <span>Lorem ipsum dolor</span>
            <ul/>
         </li>
      </ul>
   </li>
   <li>
      <span>Lorem ipsum dolor</span>
      <ul/>
   </li>
   <li>
      <span>sit amet et consectetur</span>
      <ul>
         <li>
            <span>Quia adipit</span>
            <ul>
               <li>
                  <span>aliquam quaerat</span>
                  <ul/>
               </li>
            </ul>
         </li>
      </ul>
   </li>
   <li>
      <span>Quia adipit</span>
      <ul>
         <li>
            <span>aliquam quaerat</span>
            <ul/>
         </li>
      </ul>
   </li>
   <li>
      <span>aliquam quaerat</span>
      <ul/>
   </li>
   <li>
      <span>Erit et nunquam</span>
      <ul/>
   </li>
</ul>

问题

如您所见，此 MBE 存在一些问题：

1. 对同一同级中的第一个降序节点进行多次处理。它们的处理量与它们的深度一样多。例如，“aliquam quaerat”出现树时间，因为他是一个节点。<h3>
2. 一个无用的人有时会出现在一个没有里面的人里面。</ul><li><ul>
3. 不是兄弟姐妹之间第一个节点的节点被视为 .（参见“Erit et nunquam”的案例，他是.<h1><h2>

问题

如何使xml的标题节点在级联结构中与后代与其上升者密切相关？<ul><li>