使用 xsl 从 section 属性中提取类 [英] Extracting a class from the section attribute using xsl

问题描述

我有一个 XSLT 问题，它是在我上周提出的问题之后提出的.XSL for Xml:使用 XSL 插入特定类

I have a XSLT question which follows on from the question I asked last week. XSL for Xml: Inserting specific classes using XSL

挑战在于根据section属性插入类.我有一个来自@Kirill Polishchuk 提供的上一个问题的示例 XSLT 解决方案，但如果我有非常大的数据集，我无法使用此解决方案.

The challenge is to insert classes according to the section attribute. I have an example XSLT solution from my previous question provided by @Kirill Polishchuk, but I can not this solution if I have very large data set.

我只需要提取 section 属性中下划线后的文本，并将其用作输出 xml 中的类.我现在很困惑.

I just need to extract the text after the underscore in the section attribute and use it as a class in the output xml. I'm puzzled at the moment.

请注意，我正在使用 XSLT 1.0.任何建议或指导将不胜感激.

Please note I'm working with XSLT 1.0. Any advice or guidance will be much appreciate.

谢谢 JJ.

输入:

<root>
  <page number="1" section="Arsenal_Stadium">Arsenal_Stadium</page> 
  <page number="2" section="Arsenal_Stadium">Arsenal_Stadium</page> 
  <page number="3" section="Arsenal_Stadium">Arsenal_Stadium</page> 
  <page number="4" section="Arsenal_Stadium">Arsenal_Stadium</page> 
  <page number="5" section="Arsenal_Stadium">Arsenal_Stadium</page> 
  <page number="6" section="Arsenal_Stadium">Arsenal_Stadium</page> 
  <page number="7" section="Arsenal_Stadium">Arsenal_Stadium</page> 
  <page number="8" section="Arsenal_Crowds">Arsenal_Crowds</page> 
  <page number="9" section="Arsenal_Crowds">Arsenal_Crowds</page> 
  <page number="10" section="Arsenal_Crowds">Arsenal_Crowds</page> 
  <page number="11" section="Arsenal_Crowds">Arsenal_Crowds</page> 
  <page number="12" section="Arsenal_Crowds">Arsenal_Crowds</page> 
  <page number="13" section="Arsenal_Finances">Arsenal_Finances</page> 
  <page number="14" section="Arsenal_Finances">Arsenal_Finances</page> 
  <page number="15" section="Arsenal_Finances">Arsenal_Finances</page> 
  <page number="16" section="Arsenal_Finances">Arsenal_Finances</page> 
  <page number="17" section="Arsenal_Finances">Arsenal_Finances</page> 
  <page number="18" section="Arsenal_Finances">Arsenal_Finances</page> 
  <page number="19" section="Arsenal_Finances">Arsenal_Finances</page> 
  <page number="20" section="Arsenal_Outlook">Arsenal_Outlook</page> 
  <page number="21" section="Arsenal_Outlook">Arsenal_Outlook</page> 
  <page number="22" section="Arsenal_Outlook">Arsenal_Outlook</page> 
  <page number="23" section="Arsenal_Outlook">Arsenal_Outlook</page> 
  <page number="24" section="Arsenal_Outlook">Arsenal_Outlook</page> 
 </root>

输出:

<table>
<tr>
<td class="Stadium">Arsenal_Stadium</td>
<td></td>
<td class="Crowds">Arsenal_Crowds</td>
<td></td>
<td class="Finances">Arsenal_Finances</td>
<td></td>
<td class="Outlook">Arsenal_Outlook</td>
<td></td>
</tr>
<tr>
<td>1</td>
<td>7</td>
<td>8</td>
<td>12</td>
<td>13</td>
<td>19</td>
<td>20</td>
<td>24</td>
</tr>
</table>

推荐答案

从我的回答中稍微修改了 XSLT:https://stackoverflow.com/a/13225163/787016.它添加了class 属性并使用substring-after 函数来提取section 属性的右侧部分.

Slightly modified XSLT from my answer: https://stackoverflow.com/a/13225163/787016. It adds class attribute and uses substring-after function to extract right part of section attribute.

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output method="xml" omit-xml-declaration="yes" indent="yes"/>

  <xsl:key name="k" match="page" use="@section"/>

  <xsl:template match="/root">
    <table>
      <tr>
        <xsl:apply-templates select="page[generate-id() = generate-id(key('k', @section))]"/>
      </tr>
      <tr>
        <xsl:apply-templates select="page[generate-id() = generate-id(key('k', @section))]" mode="page"/>
      </tr>
    </table>
  </xsl:template>

  <xsl:template match="page">
    <td class="{substring-after(@section, '_')}">
      <xsl:value-of select="."/>
    </td>
    <td></td>
  </xsl:template>

  <xsl:template match="page" mode="page">
    <td>
      <xsl:value-of select="@number"/>
    </td>
    <td>
      <xsl:value-of select="key('k', @section)[last()]/@number"/>
    </td>
  </xsl:template>

</xsl:stylesheet>

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