How to remove the content with element by using the attribute value?

Question

How to remove the content with element by using the attribute value?

58 views Asked by User501 At 30 December 2016 at 06:52

I want to remove the two paragraphs by using that attribute value, I tried the below things, but it's occurring in output,

My input XML is:

<chapter outputclass="chapter-Body">
<body class="- chapter/body ">
<p class="- chapter/p ">why now?</p>
<p class="- chapter/p " outputclass="Image_Size">Banner</p>
<fig>
<image href="3.jpg" outputclass="Fig-Image_Ref"/>
</fig>
<p class="- chapter/p ">But for others, it may not be.</p>
<image ref="4.png" outputclass="Image_Ref"/>
<p class="- chapter/p " outputclass="Image_Size">Small</p>
<p class="- chapter/p ">As result</p>
</body>
</chapter>

XSL I used:

<xsl:stylesheet version="2.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:template match="chapter[@outputclass='chapter-Body']">
<body>
<text>
<text_top><p><xsl:value-of select="body/fig/preceding-sibling::p[1]"/></p>
 </text_top>

<text_bottom><p><xsl:value-of select="body/fig/following-sibling::p[1]"/></p>
  <p><xsl:value-of select="body/fig/following-sibling::p[2]"/></p>
 </text_bottom>
</text> 
<xsl:apply-templates/>
</body>
</xsl:template>

<xsl:template match="p[@outputclass='Image_Size']"/>

</xsl:stylesheet>

XML output I got as:

<body>
<text>
<text_top>
<p>Banner</p>
</text_top>
<text_bottom>
<p>But for others, it may not be.</p>
<p>Small</p>
</text_bottom>
</text>
</body>

But I'm expecting to be like:

<body>
<text>
<text_top>
<p>why now?</p>
</text_top>
<text_bottom>
<p>But for others, it may not be.</p>
<p>As result</p>
</text_bottom>
</text>
</body>

I used apply templates of that particular two paras but it's coming in output. How can I fix this using the same XSLT?

Original Q&A

There are 1 answers

**Tim C** · Accepted Answer · 2016-12-30 08:30:35

The order of the preceding-sibling axis is the reverse document order, so when you do body/fig/preceding-sibling::p[1], this gets the p that immediately precedes the fig element. You need the one before, so you should be doing body/fig/preceding-sibling::p[2].

Similarly, you want the 1st and 3rd p elements following fig so you should adjust the indexes accordingly for that too. Note that your current template that matches p[@outputclass='Image_Size'] does not get used at all, because there is nothing in the XSLT that does an xsl:apply-templates to select them.

Try this XSLT

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0">
   <xsl:output method="xml" indent="yes"/>

   <xsl:template match="chapter[@outputclass='chapter-Body']">
      <body>
         <text>
            <text_top>
               <p><xsl:value-of select="body/fig/preceding-sibling::p[2]"/></p>
            </text_top>

            <text_bottom>
               <p><xsl:value-of select="body/fig/following-sibling::p[1]"/></p>
               <p><xsl:value-of select="body/fig/following-sibling::p[3]"/></p>
            </text_bottom>
         </text> 
      </body>
   </xsl:template>
</xsl:stylesheet>

Having said that, it looks what you are trying to achieve is to select all p elements preceding and following the fig, with the exception of the ones with an outputclass of "Image_Size".

If that is the case, try this more generic XSLT. Note how the template that matches p[@outputclass='Image_Size'] is now used, because of the xsl:apply-templates in the first template.

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0">
   <xsl:output method="xml" indent="yes"/>

   <xsl:template match="chapter[@outputclass='chapter-Body']">
      <body>
         <text>
            <text_top>
               <xsl:apply-templates select="body/fig/preceding-sibling::p" />
            </text_top>

            <text_bottom>
               <xsl:apply-templates select="body/fig/following-sibling::p" />
            </text_bottom>
         </text> 
      </body>
   </xsl:template>

   <xsl:template match="p[@outputclass='Image_Size']"/>

   <xsl:template match="p">
       <p><xsl:value-of select="." /></p>
   </xsl:template>
</xsl:stylesheet>

TechQA.

How to remove the content with element by using the attribute value?

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