xml - split nodes and assign them to variables for matching -

this question similar merge 2 elements using xslt based on attribute values trying put in different way understand better.

i have xml file 2 elements names same, second element part of first element. example:

<?xml version="1.0" encoding="utf-8" standalone="no"?> <!-- first element--> <book>     <mbean code="org.book.mybooks"  name="mycompany.props.jndi:name=mybookprops">            <attribute name="bookprops">             abc.mybook.onebook=@value@             def.mybook.twobook=@value@             ghi.myebook.threebook=@value@         </attribute>     </mbean>     <!--this second element , part of first element-->     <book>         <mbean code="org.book.mybooks"  name="mycompany.props.jndi:name=mybookprops">                <attribute name="bookprops">             abc.mybook.onebook=@new_value@             def.mybook.twobook=@new_value@             ghi.myebook.fourbook=@value@              </attribute>         </mbean>     </book><!--closing tag of second element--> </book><!--closing tag of first element--> 

objective is:

combine both elements 1 element , if both elements having similar nodes value of nodes different replace values of first attribute nodes second attribute nodes.

procedure thinking of:

1. sort nodes of first , second elements.
2. split nodes of first element , assign variables. example: node of first element abc.mybook.onebook=@value@ split 2 , assigned them variables varaible1=abc.mybook.onebook , varaible2=@value@.
3. simillar way split nodes of second element , assign them variables. example node of second element abc.mybook.onebook=@new_value@ split 2 , assigned them variables varaible3=abc.mybook.onebook , varaible4=@new_value@.
4. now match first element variables second element variables. example: if variable1 equals variable3 replace variable2 varaible4; else copy first element node , copy second element node.

this can done in shell or bash since requirement xslt, trying figure out how can accomplished.

the final output expecting is:

<book>     <mbean code="org.book.mybooks"  name="mycompany.props.jndi:name=mybookprops">            <attribute name="bookprops">             abc.mybook.onebook=@new_value@             def.mybook.twobook=@new_value@             ghi.myebook.threebook=@value@             ghi.myebook.fourbook=@value@         </attribute>     </mbean> </book> 

i use analyze-string extract parts , can group:

<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/xsl/transform"   xmlns:xs="http://www.w3.org/2001/xmlschema"   xmlns:mf="http://example.com/mf"   exclude-result-prefixes="xs mf">  <xsl:function name="mf:props" as="element(value)*">   <xsl:param name="input" as="xs:string"/>   <xsl:analyze-string select="$input" regex="(\s+)=(\s+)">     <xsl:matching-substring>       <value key="{regex-group(1)}"><xsl:value-of select="regex-group(2)"/></value>     </xsl:matching-substring>   </xsl:analyze-string> </xsl:function>  <xsl:template match="@* | node()">   <xsl:copy>     <xsl:apply-templates select="@* , node()"/>   </xsl:copy> </xsl:template>  <xsl:template match="book[book]/mbean/attribute">   <xsl:copy>     <xsl:copy-of select="@*"/>     <xsl:variable name="props">       <xsl:sequence select="mf:props(.), mf:props(../following-sibling::book/mbean/attribute)"/>     </xsl:variable>     <xsl:text>&#10;</xsl:text>     <xsl:for-each-group select="$props/value" group-by="@key">       <xsl:apply-templates select="current-group()[last()]" mode="value-to-prop"/>     </xsl:for-each-group>   </xsl:copy> </xsl:template>  <xsl:template match="value" mode="value-to-prop">   <xsl:value-of select="concat('            ', @key, '=', ., '&#10;')"/> </xsl:template>  <xsl:template match="book/book"/>  </xsl:stylesheet> 

saxon 9.5 transforms given input into

<?xml version="1.0" encoding="utf-8"?><!-- first element--><book>     <mbean code="org.book.mybooks" name="mycompany.props.jndi:name=mybookprops">         <attribute name="bookprops">             abc.mybook.onebook=@new_value@             def.mybook.twobook=@new_value@             ghi.myebook.threebook=@value@             ghi.myebook.fourbook=@value@ </attribute>     </mbean>     <!--this second element , part of first element-->     <!--closing tag of second element--> </book><!--closing tag of first element-->