Xpath Query Help. Selecting data from multiple paths as a single data set -

i have xml structure following :

<doc>  <line void="false">   <linenumber>1</linenumber>   <info1>ddddd</info1>   <info2>aaaaa</info2>  </line>   <line void="true">   <linenumber>2</linenumber>   <voidlinenumber>1</voidlinenumber>   <voidvalue>2.00</voidvalue>  </line>  </doc> 

i need 1 single set of data. select lines void = false voidlinenumber , voidvalue data line void = true , voidlinenumber = linenumber original line.

is possible? appreciated. thanks

as michael kay noted, xpath can used select nodes, not transform them. can want xslt:

<?xml version="1.0" ?> <xsl:stylesheet version="1.0"     xmlns:xsl="http://www.w3.org/1999/xsl/transform">     <xsl:output method="html" encoding="utf-8" indent="yes" />      <xsl:template match="doc">         <xsl:apply-templates select="line" />     </xsl:template>      <xsl:template match="line">     <xsl:variable name="voidvalue"><xsl:value-of select="@void" /></xsl:variable>           <xsl:if test="$voidvalue='false'">                  <xsl:copy>                     <xsl:copy-of select="@*" />                     <xsl:apply-templates />                 </xsl:copy>          </xsl:if>     </xsl:template>      <xsl:template match="*">                     <xsl:element name="{name()}">                              <xsl:if test="name(.)='linenumber'">                                 <xsl:value-of select="."/>                              </xsl:if>                     </xsl:element>     </xsl:template> </xsl:stylesheet>