XSLT - 应用模板中包含多个节点的通用规则

Question

我正在根据父亲中的一个字段对祖父进行排序。源文件看起来像

<Root>
    <AllData>
        <Data_not_to_be_sorted>
            <Additional_data1>
                <Some_test_data1/>
                <Some_test_data2/>
            </Additional_data1>
        </Data_not_to_be_sorted>
        <RealData>
            <Some_data1/>
            <Some_data2/>
            <GrandFather>
                <Data_required_as_it_is></Data_required_as_it_is>
                    <Father>
                        <Value>4</Value>
                        <Name>name in 4</Name>
                    </Father>
            </GrandFather>
            <GrandFather>
                <Data_required_as_it_is></Data_required_as_it_is>
                <Father>
                    <Value>3</Value>
                    <Name>name in 3</Name>
                </Father>
            </GrandFather>
        </RealData>
        <RealData>
            <Some_data1/>
            <Some_data2/>
            <GrandFather>
                <Data_required_as_it_is></Data_required_as_it_is>
                <Father>
                    <Value>2</Value>
                    <Name>name in 2</Name>
                </Father>
            </GrandFather>
            <GrandFather>
                <Data_required_as_it_is></Data_required_as_it_is>
                <Father>
                    <Value>1</Value>
                    <Name>name in 1</Name>
                </Father>
            </GrandFather>
        </RealData>
    </AllData>
</Root>

我使用的 XSLT 代码如下:

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

<xsl:template match="@* | node()">
<xsl:copy>
   <xsl:apply-templates select="@* | node()"/>
</xsl:copy>
</xsl:template>



<xsl:template match="RealData">
<xsl:copy>
<xsl:apply-templates select="Data_required_as_it_is"></xsl:apply-templates>
<xsl:apply-templates select="GrandFather">
<xsl:sort select="Father/Value" data-type="number"/>
</xsl:apply-templates>

</xsl:copy>

</xsl:template>

</xsl:stylesheet>

代码运行良好......我的查询是 - 我可以为

Data_required_as_it_is。想象一下，我有 20 个不同的 xml 标签用于“Data_required_as_it_is”，所以要么我需要手动编写所有这些标签，要么只是以通用方式编写它们......

代码的输出如下:

<Root>
    <AllData>
        <Data_not_to_be_sorted>
            <Additional_data1>
                <Some_test_data1/>
                <Some_test_data2/>
            </Additional_data1>
        </Data_not_to_be_sorted>
        <RealData>
            <Some_data1/>
            <Some_data2/>
            <GrandFather>
                <Data_required_as_it_is></Data_required_as_it_is>
                    <Father>
                        <Value>3</Value>
                        <Name>name in 3</Name>
                    </Father>
            </GrandFather>
            <GrandFather>
                <Data_required_as_it_is></Data_required_as_it_is>
                <Father>
                    <Value>4</Value>
                    <Name>name in 4</Name>
                </Father>
            </GrandFather>
        </RealData>
        <RealData>
            <Some_data1/>
            <Some_data2/>
            <GrandFather>
                <Data_required_as_it_is></Data_required_as_it_is>
                <Father>
                    <Value>1</Value>
                    <Name>name in 1</Name>
                </Father>
            </GrandFather>
            <GrandFather>
                <Data_required_as_it_is></Data_required_as_it_is>
                <Father>
                    <Value>2</Value>
                    <Name>name in 2</Name>
                </Father>
            </GrandFather>
        </RealData>
    </AllData>
</Root>

Answer 1

<xsl:template match="RealData">
      <xsl:copy>
          <xsl:apply-templates select="Data_required_as_it_is"></xsl:apply-templates>
          <xsl:apply-templates select="GrandFather">
              <xsl:sort select="Father/Value" data-type="number"/>
          </xsl:apply-templates>
      </xsl:copy>
  </xsl:template>

可以使用更通用的代码，如 :

<xsl:template match="RealData">
    <xsl:copy>
        <xsl:apply-templates>
            <xsl:sort select="self::GrandFather/Father/Value" data-type="number"/>
        </xsl:apply-templates>
    </xsl:copy>
</xsl:template>

备注 : 这将对任何非 GrandFather 进行排序任何 GrandFather 之前的节点节点并将执行 GrandFather 的指定排序元素由他们 Father/Value元素。

如果需要非 GrandFather元素仍然穿插在 GrandFather 内元素，这也可以完成 - 如果有兴趣，请提出另一个问题。