dom - How to stop querying when it reaches a specific class with XPath? -

say have following:

<div class="data">     <h2 class="entry-contenth2">preparation</h2>     <h2>airplanes</h2>     <ul>         <li><strong>3 large</strong> wings</li>         <li><strong>2</strong>doors</li>     </ul>     <h2>car</h2>     <ul>         <li><strong>4</strong> doors</li>         <li><strong>1 cup</strong> holder</li>     </ul>     <h2 class="stopheader">execution</h2>     <h2>motorcycles</h2>     <ul>         <li>easy learn</li>     </ul> </div> 

i'm trying query of <p></p> tags text after <h2>preparing</h2>, want stop @ last <p></p> before stopheader class.

this code came with:

//h2[contains(.,"preparation")]/following-sibling::h2/text()[not(preceding::h2[@class="stopheader"])]  #and //h2[contains(.,"preparation")]/following-sibling::h2/text()[not(preceding::h2[contains(., "execution")])] 

try below xpath desired output:

//h2[.="preparation"]/following-sibling::h2[./following-sibling::h2[.="execution"]]/text() 

this should return text content of each header (h2) between "preparation" , "execution"