I just ran her stylesheet against her XML document with SaxonB 8.7.3, and got exactly the results she showed. In an earlier message I suggested that she use the xsl:preserve-space instruction to get the result asked for.
-- 
Charles Knell
cknell@xxxxxxxxxx - email



-----Original Message-----
From:     Michael Kay <mike@xxxxxxxxxxxx>
Sent:     Mon, 5 Mar 2007 20:57:15 -0000
To:       <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
Subject:  RE:  how to reserve single space after transformation

> 
> I am doing XML to XML transform by using saxon 8. But the 
> result changed from single space to empty space, could you 
> please help me for this problem?
> 
> <category_label>
> 	<string> </string>
> </category_label>
> 
> 
> to: 
> 
> <category_label>
> 	<string/>
> </category_label>
> 

I can think of many different stylesheets that would transform a single
space to a zero-length string, but the chances are that none of them is the
stylesheet you wrote. Show us some code!

Michael Kay
http://www.saxonica.com/