Greg Faron <gfaron(_at_)integretechpub(_dot_)com> wrote:
Wendell posted "not(string())", but according to topxml.com (I know,
it's not the canonical source), a call to string() with no arguments
always
returns the empty string. I haven't verified that one either way...
topxml.com is wrong. From the XPath recommendation:
"The string function converts an object to a string as follows:
A node-set is converted to a string by returning the string-value of the
node in the node-set that is first in document order. If the node-set is
empty, an empty string is returned.
...
If the argument is omitted, it defaults to a node-set with the context
node as its only member."
See:
http://www.w3.org/TR/xpath#section-String-Functions
Dave
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