Subject: RE: Big long xpath, almost there, but not quite
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Date: Thu, 16 Apr 2009 19:20:59 +0100
|
Your expression is
count (A or B or C or D or E) >= 4
But (A or B or C or D or E) is a boolean, and the count() of a single
boolean value is always 1.
Try count((boolean(A), boolean(B), boolean(C), boolean(D), boolean(E))[.])
>= 4
The unusual predicate [.] selects those booleans in the sequence that are
true.
Michael Kay
http://www.saxonica.com/
> -----Original Message-----
> From: russurquhart1@xxxxxxxxxxx [mailto:russurquhart1@xxxxxxxxxxx]
> Sent: 16 April 2009 19:03
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Big long xpath, almost there, but not quite
>
>
>
> I want to thank everybody for their help on this. Michael
> Kay, thaks for your help very much. I entered the following
> Xpath. It is getting there, but it still is not quite right.
>
> //GenTable[count(entry[Emphasis[normalize-space(.) = 'Address
> Offset' and @type='bold'] or
> Emphasis[normalize-space(.)='Physical Address' and
> @type='bold'] or Emphasis[normalize-space(.)='Instance' and
> @type='bold'] or Emphasis[normalize-space(.)='Description'
> and @type='bold'] or Emphasis[normalize-space(.)='Type' and
> @type='bold'] ]) >= 4]
>
> When i use this, as i would like at least 4 entry element
> that match the conditions above, hopefully 5, i would think
> this should do the trick and return the GenTable elements
> that contain them.
>
> When i run it, however, i get no GenTable elements. When i
> remove the count() function, i get no GenTable elements. When
> i change the 4 9the minimum match value, to something smaller
> like 1) i get no GenTable elements. When i change the number
> 4 to 0, i get ALL the GenTable elements.
>
> I would have thought that removing the count() function would
> have given me all the GenTable elements containing those
> entry elements.
>
> Could someone explain a little about this? The reasoning
> seems sound, i just don't know why it is doing what it is!
>
> thanks again,
>
>
> Russ
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