2015-09-18 40 views
1

我有这样的XML,XSLT - 获得原始属性到结果树

<doc> 
    <section type="Main_Content"> 
     <p id="main">aa</p> 
     <p id="main">bb</p> 
     <p id="main">cc</p> 
     <p id="para1">dd</p> 
     <p id="main">ee</p> 
     <p id="main">ff</p> 
     <p id="para2">hh</p> 
     <p id="main">ii</p> 
     <p id="main">jj</p> 
     <p id="para1">xx</p> 
     <p id="main">yy</p> 

    </section> 
    <section type="Main_Chapter"> 
     <p id="main">ii</p> 
     <p id="main">jj</p> 
     <p id="para1">xx</p> 
     <p id="main">yy</p> 
     <p id="main">zz</p>  
    </section> 
</doc> 

我的任务是小组根据ID上述内容=“PARA1”和id =“PARA2”的属性,并添加一个节到每个组。我期望的输出是

<doc> 
    <section type="Main_Content"> 
     <p id="main">aa</p> 
     <p id="main">bb</p> 
     <p id="main">cc</p> 
    </section> 
    <section type="First para"> 
     <p id="para1">dd</p> 
     <p id="main">ee</p> 
     <p id="main">ff</p> 
    </section> 
    <section type="Second para"> 
     <p id="para2">hh</p> 
     <p id="main">ii</p> 
     <p id="main">jj</p> 
    </section> 
    <section type="First para"> 
     <p id="para1">xx</p> 
     <p id="main">yy</p> 
    </section> 
    <section type="Main_Chapter"> 
     <p id="main">ii</p> 
     <p id="main">jj</p> 
    </section> 
    <section type="First para"> 
     <p id="para1">xx</p> 
     <p id="main">yy</p> 
     <p id="main">zz</p> 
    </section> 
</doc> 

的XSL代码这个任务,

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

    <xsl:template match="section"> 
     <xsl:for-each-group select="p" group-starting-with="p[starts-with(@id, 'para')]"> 
      <section type="{@type}"> 
       <xsl:if test="current-group()[1][@id='para1']"> 
        <xsl:attribute name="type" select="'First para'"/> 
       </xsl:if> 
       <xsl:if test="current-group()[1][@id='para2']"> 
        <xsl:attribute name="type" select="'Second para'"/> 
       </xsl:if> 
       <xsl:apply-templates select="current-group()"/> 
      </section>  
     </xsl:for-each-group> 
    </xsl:template> 

结果从上面的XSL得到的是,

<doc> 
    <section type=""> 
     <p id="main">aa</p> 
     <p id="main">bb</p> 
     <p id="main">cc</p> 
    </section> 
    <section type="First para"> 
     <p id="para1">dd</p> 
     <p id="main">ee</p> 
     <p id="main">ff</p> 
    </section> 
    <section type="Second para"> 
     <p id="para2">hh</p> 
     <p id="main">ii</p> 
     <p id="main">jj</p> 
    </section> 
    <section type="First para"> 
     <p id="para1">xx</p> 
     <p id="main">yy</p> 
    </section> 
    <section type=""> 
     <p id="main">ii</p> 
     <p id="main">jj</p> 
    </section> 
    <section type="First para"> 
     <p id="para1">xx</p> 
     <p id="main">yy</p> 
     <p id="main">zz</p> 
    </section> 
</doc> 

SO,因为它似乎在结果除了原来的type属性没有被复制到<section>节点外,其它情况都是正确的。如何修改xsl以获得原始type属性值到<section>节点?

回答

4

的问题是在所提供的这部分代码:

<xsl:template match="section"> 
    <xsl:for-each-group select="p" group-starting-with="p[starts-with(@id, 'para')]"> 
     <section type="{@type}"> 

执行通知该上下文(电流)项是一个p元件,并且没有这些提供的源XML文档中有一个type属性。

这里您需要p元素的父项的type属性

解决方案

替换:

 <section type="{@type}"> 

有:

 <section type="{../@type}"> 

现在整个改造成为

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

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

<xsl:template match="section"> 
    <xsl:for-each-group select="p" group-starting-with="p[starts-with(@id, 'para')]"> 
     <section type="{../@type}"> 
     <xsl:if test="current-group()[1][@id='para1']"> 
      <xsl:attribute name="type" select="'First para'"/> 
     </xsl:if> 
     <xsl:if test="current-group()[1][@id='para2']"> 
      <xsl:attribute name="type" select="'Second para'"/> 
      </xsl:if> 
      <xsl:apply-templates select="current-group()"/> 
     </section>  
    </xsl:for-each-group> 
</xsl:template> 
</xsl:stylesheet> 

,并且当所提供的源XML文档施加:

<doc> 
    <section type="Main_Content"> 
     <p id="main">aa</p> 
     <p id="main">bb</p> 
     <p id="main">cc</p> 
     <p id="para1">dd</p> 
     <p id="main">ee</p> 
     <p id="main">ff</p> 
     <p id="para2">hh</p> 
     <p id="main">ii</p> 
     <p id="main">jj</p> 
     <p id="para1">xx</p> 
     <p id="main">yy</p> 
    </section> 
    <section type="Main_Chapter"> 
     <p id="main">ii</p> 
     <p id="main">jj</p> 
     <p id="para1">xx</p> 
     <p id="main">yy</p> 
     <p id="main">zz</p> 
    </section> 
</doc> 

的想要的,正确的结果产生:

<doc> 
    <section type="Main_Content"> 
     <p id="main">aa</p> 
     <p id="main">bb</p> 
     <p id="main">cc</p> 
    </section> 
    <section type="First para"> 
     <p id="para1">dd</p> 
     <p id="main">ee</p> 
     <p id="main">ff</p> 
    </section> 
    <section type="Second para"> 
     <p id="para2">hh</p> 
     <p id="main">ii</p> 
     <p id="main">jj</p> 
    </section> 
    <section type="First para"> 
     <p id="para1">xx</p> 
     <p id="main">yy</p> 
    </section> 
     <section type="Main_Chapter"> 
     <p id="main">ii</p> 
     <p id="main">jj</p> 
    </section> 
    <section type="First para"> 
     <p id="para1">xx</p> 
     <p id="main">yy</p> 
     <p id="main">zz</p> 
    </section> 
</doc>