Help with xpath

[John Smith]

I am trying to query a documents

<level1>
<level2>
<level3>
x
<level4>a</level4>
<level4>b</level4>
<level4>c</level4>
</level3>
</level2>
</level1>

The Xpath query "/level1/level2/level3[level4/text='b']" find b, but "/level1/level2[level3/text='x']" finds nothing as does "//*[text='x']" ..

Why is this?

Many Thanks

Jon

 

[John Smith]

A bit futher on now, it appears the "x" text node has a newline character in it. Altering the query to "/level1/level2[level3/normalize-space(text)='x']" works. Altering the document to:

<level1>
<level2>
<level3>
x<level4>a</level4>
<level4>b</level4>
<level4>c</level4>
</level3>
</level2>
</level1>

also works, I am using a java dom parser with the XpathAPI to do the search.
An ideas?

Many Thanks

Jon