Hi,
At 04:12 PM 12/9/2009, was heard:
test="string-length(normalize-space(<expression>)) > 0"
Since an empty string implicitly converts to a Boolean false, and any
other string converts to a Boolean true, this is the same as saying
test="normalize-space(<expression>)"
(The only actual difference -- unless your processor happens to
optimize it away -- is the extra computation required to measure the
length of the string and compare the resulting number to another number.)
The inverse of this is straightforward:
test="not(normalize-space(<expression>))">
Note that in 2.0 all of these will return errors if <expression>
returns more than one node. How best to defend against that
possibility depends on the expression and use case.
Cheers,
Wendell
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Wendell Piez
mailto:wapiez(_at_)mulberrytech(_dot_)com
Mulberry Technologies, Inc. http://www.mulberrytech.com
17 West Jefferson Street Direct Phone: 301/315-9635
Suite 207 Phone: 301/315-9631
Rockville, MD 20850 Fax: 301/315-8285
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