使用属性的 XSL 分组 [英] XSL grouping using attribute

问题描述

我有一些看起来像这样的 XML:

I've got some XML that looks a bit like this:

<Options>
  <Option OptionGroup="Safety">Driver Airbag</Option>
  <Option OptionGroup="Comfort and Convenience">Front Electric Windows</Option>
  <Option OptionGroup="Comfort and Convenience">Height Adjustable Drivers Seat</Option>
  <Option OptionGroup="Comfort and Convenience">Pollen Filter</Option>
  <Option OptionGroup="Comfort and Convenience">Privacy Glass</Option>
  <Option OptionGroup="Comfort and Convenience">Remote Boot Release</Option>
  <Option OptionGroup="Comfort and Convenience">Split Rear Seats</Option>
  <Option>Something else</Option>
  <Option>Yet another thing</Option>
  <Option OptionGroup="Paint or Trim and Upholstery">Metallic Paint</Option>
  <Option OptionGroup="Exterior Equipment">Power Assisted Steering (PAS)</Option>
  <Option OptionGroup="Interior Equipment">Leather Steering Wheel</Option>
  <Option OptionGroup="In Car Entertainment">CD Radio</Option>
  <Option OptionGroup="Security">Central Locking</Option>
</Options>

我想使用 XSL 1.0 将输出分组在一起，基于他们的 OptionGroup 属性，在末尾列出任何没有列出属性的选项.类似的东西:

I'd like to group the output together using XSL 1.0, based on their OptionGroup attirbute, having any Options without an attribute listed at the end. Something like:

<table>
<tr><th>Safety</th></tr>
  <tr><td>Drivers Airbag</td></tr>
<tr><th>Comfort and Convenience</th></tr>
  <tr><td>Front Electric Windows, Height Adjustable Drivers Seat, Pollen Filter, Privacy Glass, Remote Boot Release, Split Rear Seats</td></tr>
<tr><th>Paint or Trim and Upholstery</th></tr>
  <tr><td>Metallic Paint</td></tr>
<tr><th>Exterior Equipment</th></tr>
  <tr><td>Power Assisted Steering (PAS)</td></tr>
<tr><th>Interior Equipment</th></tr>
  <tr><td>CD Radio</td></tr>
<tr><th>Security</th></tr>
  <tr><td>Central Locking</td></tr>
<tr><th>Other</th></tr>
  <tr><td>Something else, Yet another thing</td></tr>
</table>

我猜这都是可能的.

推荐答案

这应该有效:

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

  <xsl:template match="/">
    <table>
      <xsl:for-each select="Options/Option/@OptionGroup[not(. = preceding::Option/@OptionGroup)]">
        <xsl:call-template name="OutputGroup">
          <xsl:with-param name="title" select="." />
          <xsl:with-param name="items" select="../../Option[@OptionGroup = current()]" />
        </xsl:call-template>
      </xsl:for-each>

      <xsl:if test="Options/Option[not(@OptionGroup)]">
        <xsl:call-template name="OutputGroup">
          <xsl:with-param name="title" select="'Other'" />
          <xsl:with-param name="items" select="Options/Option[not(@OptionGroup)]" />
        </xsl:call-template>
      </xsl:if>
    </table>
  </xsl:template>
  <xsl:template name="OutputGroup">
    <xsl:param name="title" />
    <xsl:param name="items" />

    <tr>
      <th>
        <xsl:value-of select="$title"/>
      </th>
    </tr>
    <tr>
      <td>
        <xsl:apply-templates select="$items" />
      </td>
    </tr>

  </xsl:template>

  <xsl:template match="Option">
    <xsl:if test="position() > 1">
      <xsl:text>, </xsl:text>
    </xsl:if>
    <xsl:value-of select="."/>
  </xsl:template>

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