RE: Using normalize-space to test for characters in text nodes

Hi,

> Consider the following xml snippet:
>
> <root>
>   <node> </node>
>   <node>&#160;</node>
> </root>
>
> normalize-space() returns false for the first node, and true for the
> second.  I would have expected both to return false - why is 
> the second
> node considered different from the first?
Because XPath <http://w3.org/TR/xpath#function-normalize-space> says:

  Whitespace characters are the same as those allowed by the S production in XML

And XML <http://www.w3.org/TR/REC-xml/#NT-S> says:

  [3]           S          ::=          (#x20 | #x9 | #xD | #xA)+

thus NO-BREAK SPACE is not whitespace.

Cheers,

Jarno - I want my head phones, I want my head phones! :(