Subject: RE: [xsl] Calculating cumulative values and min/max From: "Simon Shutter" <simon@xxxxxxxxxxx> Date: Wed, 13 Jun 2007 07:06:26 -0700 |
Thanks, Andrew! -----Original Message----- From: Andrew Welch [mailto:andrew.j.welch@xxxxxxxxx] Sent: June 13, 2007 2:00 AM To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx Subject: Re: [xsl] Calculating cumulative values and min/max On 6/13/07, Simon Shutter <simon@xxxxxxxxxxx> wrote: > a) in the predicate [@x = current()/@x], why is current node used and not > the context node used? I guess I'm confused at to which @x is which in the > predicate. current() returns the current node from outside of the the XPath, so if you have: parent::*[@x = current()/@x] then you are comparing @x on the parent node (the first @x in the predicate), and @x on the node thats currently being matched (the second @x). Its the same as maintaining the pointer yourself: <xsl:variable name="this" select="."/> <xsl:value-of select="parent::*[@x = $this/@x"/> > b) is it possible to calculate min/max values is this only possible in > XSLT/XPATH 2.0? You can do it in 1.0 by sorting the values and picking the first/last: http://www.dpawson.co.uk/xsl/sect2/N5121.html#d7114e427 ...but yes in 2.0 there's min() and max() cheers andrew
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