With xpath++ based on xsltproc and EXSLT this can be done similar:

$ xpath++ "normalize-space(str:concat((//author|//person)/text()))!=''"
author.xml
true
$


Mit besten Gruessen / Best wishes,

Hermann Stamm-Wilbrandt
Level 3 support for XML Compiler team, Fixpack team lead
WebSphere DataPower SOA Appliances
https://www.ibm.com/developerworks/mydeveloperworks/blogs/HermannSW/
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  From:       "G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>                                                      
                                                                                                                   
  To:         xsl-list@xxxxxxxxxxxxxxxxxxxxxx,                                                                     
                                                                                                                   
  Date:       11/03/2011 07:53 PM                                                                                  
                                                                                                                   
  Subject:    Re:  XPath which tests that an element does not have  mixed content?                            
                                                                                                                   





At 2011-11-03 18:44 +0000, Costello, Roger L. wrote:
>Would you please recommend an XPath expression which ensures that
>the content of <author> is optional whitespace, <Person>, optional
>whitespace, and nothing else:
>
>     <author>
>         <Person>
>             <name>Simon L. Peyton Jones</name>
>         </Person>
>     </author>
>
>The result of the XPath expression is true if the content is as
>desired and false otherwise. The XPath should return true for the
>above example and false for the below example:
>
>     <author>
>        The person is:
>         <Person>
>             <name>Simon L. Peyton Jones</name>
>         </Person>
>     </author>

In XSLT 2.0 you could test the join of text() children of the cited
elements along the lines of:

   not(normalize-space( string-join( (author,Person)/text() ),'')))

I hope this helps.

. . . . . . . . . . Ken




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