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Hi,
I need to restrict xs:double to any allowable double value - with the
exception of NaN.
Having looked further into regular expressions for XML Schema - there
seems to be contradictory advice around.
Following one set of advice would allow us to use ^ at the start of the
reg exp to exclude NaN:
"[^N].*" - this doesn't work with either Xerces or XML Spy.
I find the relevant section of the W3C spec somewhat difficult to
decipher. However, I get the impression that ^ is simply a normal
character in xsd land..
Another piece of advice is to use nested brackets such as:
"[a-zA-Z-[ABC]]" (Use any letters except AB or C).
Along these lines I've tried:
"[.-[NaN]]*" - far from working...
and "[.*-[NaN]]*" - ditto...
So then, the next option is to define a larger regular expression such as:
"[+\-]?(\d+(\.\d*)?([eE][+\-]?\d+)?)|([+\-]?INF)"
This does not allow .00009 for example, so we'll have to make the reg
exp even more complicated.
My question is:
Does anyone know of a simpler way of doing this?
Thanks
Max
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