XML/XSLT stylesheet/normalize space

normalize-space

   <source lang="xml">

File: Data.xml <test>

 <sample eid="A" />
 <sample eid="B"></sample>
 <sample eid="C"></sample>
 <sample eid="D"></sample>
 <sample eid="E">some text</sample>
 <sample eid="F">
   <color>blue</color>
 </sample>
 <sample eid="G">
   <color>red</color>
   more text
 </sample>

</test> File: Transform.xslt <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

 version="1.0">
 <xsl:output method="xml" omit-xml-declaration="yes" indent="no" />
 <xsl:template match="sample">
   <xsl:choose>
     <xsl:when test="normalize-space(.)">
       Sample element
       <xsl:value-of select="@eid" />
       isn"t empty.
     </xsl:when>
     <xsl:otherwise>
       Sample element
       <xsl:value-of select="@eid" />
       is empty.
     </xsl:otherwise>
   </xsl:choose>
 </xsl:template>
 

</xsl:stylesheet> Output:

       Sample element
       A
       is empty.
     
 
       Sample element
       B
       is empty.
     
 
       Sample element
       C
       is empty.
     
 
       Sample element
       D
       is empty.
     
 
       Sample element
       E
       isn"t empty.
     
 
       Sample element
       F
       isn"t empty.
     
 
       Sample element
       G
       isn"t empty.
     
</source>
   
  

normalize-space demo

   <source lang="xml">

File: Data.xml <poem>

 <verse>line 1</verse>
 <verse>
   line 2
 </verse>

</poem> File: Transform.xslt <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

 version="1.0">
 <xsl:output method="xml" omit-xml-declaration="yes" indent="no" />
 
 <xsl:template match="verse">
   <xsl:value-of select="concat("length: ",string-length(.))" />
   <xsl:if test="contains(.,"light")">
     <xsl:text>light: yes!</xsl:text>
   </xsl:if>
   <xsl:if test="starts-with(.,"Seest")">
     <xsl:text>Yes, starts with "Seest"</xsl:text>
   </xsl:if>
   <xsl:value-of select="normalize-space(.)" />
   <xsl:value-of select="translate(.,"abcde","ABCD")" />
 </xsl:template>
 

</xsl:stylesheet> Output:

 length: 6line 1lin 1
 length: 13line 2
   lin 2
 
</source>
   
  

normalize-space() function and if statement

   <source lang="xml">

File: Data.xml

<poem>

 <a>line 1</a>
 line 1
 <c>line 1</c>
 <d>
   line 1
 </d>

</poem> File: Transform.xslt <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

 version="1.0">
 <xsl:output method="xml" omit-xml-declaration="yes" indent="no" />
 <xsl:template match="a">
   <xsl:if test="normalize-space(.) = normalize-space(../d)">
     a = normalize-space(../d)
   </xsl:if>
   
 </xsl:template>
 <xsl:template match="b|c|d" />

</xsl:stylesheet> Output:

     a = normalize-space(../d)
   
 
 
 
</source>
   
  

Use normalize-space() function to normalize space for elements and attributes

   <source lang="xml">

File: Data.xml <employees>

 <employee hireDate="09/01/1998">
   <last>A</last>
   <first>B</first>
   <salary>95000</salary>
 </employee>
 <employee hireDate="     04/23/1999">
   <last>C</last>
   <first>D</first>
   <salary>100000</salary>
 </employee>

</employees> File: Transform.xslt <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

 version="1.0">
 <xsl:output method="xml" omit-xml-declaration="yes" />
 <xsl:template match="employee">
   <xsl:value-of select="normalize-space(@hireDate)" />
   <xsl:text>,</xsl:text>
   <xsl:value-of select="normalize-space(first)" />
   <xsl:text>,</xsl:text>
   <xsl:value-of select="normalize-space(last)" />
 </xsl:template>

</xsl:stylesheet> Output:

 09/01/1998,A,B
 04/23/1999,C,D
</source>