XSLT将顺序XML转换为分层XML

Question

我需要将顺序XML节点列表转换为层次结构,但我遇到了一些特定于XSLT的知识差距.输入XML包含文章,颜色和大小.在下面的示例中,'Record1'是一篇文章,'Record2'代表一种颜色,'Record3'代表大小.颜色和大小(record2和record3)元素的数量可以变化.

<root>
 <Record1>...</Record1>
 <Record2>...</Record2>
 <Record3>...</Record3>
 <Record3>...</Record3>
 <Record2>...</Record2>
 <Record3>...</Record3>
 <Record3>...</Record3>
 <Record3>...</Record3>
 <Record3>...</Record3>
 <Record1>...</Record1>
 <Record2>...</Record2>
 <Record3>...</Record3>
 <Record3>...</Record3>
 <Record2>...</Record2>
 <Record3>...</Record3>
 <Record3>...</Record3>
 <Record3>...</Record3>
 <Record3>...</Record3>
</root> 

所有字段都在相同的层次结构级别,但我仍然需要创建此结构作为输出:

<root>
 <article>              -> Record1
  <color>               -> Record2
   <size>...</size>     -> Record3
   <size>...</size>     -> Record3
  </color>
  <color>               -> Record2
   <size>...</size>     -> Record3
   <size>...</size>     -> Record3
   <size>...</size>     -> Record3
   <size>...</size>     -> Record3
  </color>
 </article>
 <article>              -> Record1
  <color>               -> Record2
   <size>...</size>     -> Record3
   <size>...</size>     -> Record3
  </color>
  <color>               -> Record2
   <size>...</size>     -> Record3
   <size>...</size>     -> Record3
   <size>...</size>     -> Record3
   <size>...</size>     -> Record3
  </color>
 </article>
</root>

我已经尝试按顺序迭代节点,但是例如'article'(= record1)节点标签需要保持未闭合,同时处理'color'(= record2)节点.处理具有'color'未关闭的'size'(= record3)的计数相同,但XSLT不允许这样做.我的下一个想法是为每个文章,颜色和大小级别调用模板,但我不知道如何选择例如当前'record2'和'record1'表示的下一篇文章之间的所有'record3'节点.

我对XSLT版本也有限制,因为我需要在BizTalk Server中进行这种转换,它只支持XSLT 1.0

有人能把我推向正确的方向吗？

Answer 1

这是一个 XSLT 1.0 选项。我不确定您想如何处理 Record1 和 Record2 的值，因此我将它们放入属性中val。

XML输入

<root>
    <Record1>article1</Record1>
    <Record2>color1</Record2>
    <Record3>size1</Record3>
    <Record3>size2</Record3>
    <Record2>color2</Record2>
    <Record3>size3</Record3>
    <Record3>size4</Record3>
    <Record3>size5</Record3>
    <Record3>size6</Record3>
    <Record1>article2</Record1>
    <Record2>color3</Record2>
    <Record3>size7</Record3>
    <Record3>size8</Record3>
    <Record2>color4</Record2>
    <Record3>size9</Record3>
    <Record3>size10</Record3>
    <Record3>size11</Record3>
    <Record3>size12</Record3>
</root>

XSLT 1.0

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

    <xsl:template match="/*">
        <xsl:copy>
            <xsl:apply-templates select="Record1"/>
        </xsl:copy>
    </xsl:template>

    <xsl:template match="Record1">
        <article val="{.}">
            <xsl:apply-templates select="following-sibling::Record2[generate-id(preceding-sibling::Record1[1])=generate-id(current())]"/>
        </article>
    </xsl:template>

    <xsl:template match="Record2">
        <color val="{.}">
            <xsl:apply-templates select="following-sibling::Record3[generate-id(preceding-sibling::Record2[1])=generate-id(current())]"/>
        </color>
    </xsl:template>

    <xsl:template match="Record3">
        <size>
            <xsl:value-of select="."/>
        </size>
    </xsl:template>

</xsl:stylesheet>

XML输出

<root>
   <article val="article1">
      <color val="color1">
         <size>size1</size>
         <size>size2</size>
      </color>
      <color val="color2">
         <size>size3</size>
         <size>size4</size>
         <size>size5</size>
         <size>size6</size>
      </color>
   </article>
   <article val="article2">
      <color val="color3">
         <size>size7</size>
         <size>size8</size>
      </color>
      <color val="color4">
         <size>size9</size>
         <size>size10</size>
         <size>size11</size>
         <size>size12</size>
      </color>
   </article>
</root>