xslt - parsing xml to skip tags -

i have following stylesheet skip tags xyz_1, xyz_2.

• how work xyz_*
• also, in output tags skipped have empty lines, how suppress them.

thanks in advance.

<?xml version="1.0" ?>  <xsl:stylesheet version="2.0" xmlns="http://www.w3.org/1999/xsl/transform" xmlns:xsl="http://www.w3.org/1999/xsl/transform">  <xsl:output method="html" indent="no" encoding="utf-8" omit-xml-declaration="yes" />  <xsl:template match="*">         <xsl:copy>                 <xsl:copy-of select="@*" />                 <xsl:apply-templates />         </xsl:copy> </xsl:template>  <xsl:template match="xyz_1" /> <xsl:template match="xyz_2" />  </xsl:stylesheet> 

here sample xml

<?xml version="1.0" encoding="utf-8"?> <tags>     <tag>         <tag1>tagname1</tag1>         <xyz_1>             <name>1.pdf</name>         </xyz_1>         <xyz_2>             <c_name>chart1.gif</c_name>         </xyz_2>     </tag> </tags> 

the output comes out

<?xml version="1.0" encoding="utf-8"?> <tags>     <tag>         <tag1>tagname1</tag1>          </tag> </tags> 

use:

<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="*[starts-with(name(), 'xyz_')]"/> </xsl:stylesheet> 

when applied on provided xml document:

<?xml version="1.0" encoding="utf-8"?> <tags>     <tag>         <tag1>tagname1</tag1>         <xyz_1>             <name>1.pdf</name>         </xyz_1>         <xyz_2>             <c_name>chart1.gif</c_name>         </xyz_2>     </tag> </tags> 

the wanted, correct result produced:

<tags>    <tag>       <tag1>tagname1</tag1>    </tag> </tags> 

explanation:

1. the identity rule (unless overriden) copies every node as-is

2. the overriding template matching elements name() starts-with() "xyz_" , template has empty body -- deletes matched element output.

3. the <xsl:strip-space elements="*"/> directive instructs xslt processor parse xml document ignoring whitespace-only text node in document. no whitespace-only node seen transformation hence no such nodes copied output. eliminates unwanted whitespace, reported second problem.