Subject: [xsl] parsing a long string into chunks From: "Tim Wilkins" <Tim.Wilkins@xxxxxxxxxxxxxxxx> Date: Thu, 10 Apr 2003 17:32:08 +0100 |
I have input data of the form <coordinates>x1,y1 x2,y2 x3,y3</coordinates> e.g. <coordinates>10,10 10,20 20,20</coordinates> There can be any number of space-delimited substrings. At present this is parsed using substring-before and substring-after with a recursive template, to generate a sequence of elements <Point X="10" Y="10"/> etc. Unfortunately this can sometimes be slow for long lists (by which I mean 5000 or so x,y pairs). In addition I have to divide up the resultant list of elements into chunks (to avoid exceeding a limit on the number of points in a line), although this can easily be done on a second pass (it's then a similar problem to splitting up for a table with a given number of columns). i.e. I want <coordinates>x1,x2 ... to become someething like (ignoring attributes for simplicity!) <Polyline> <Point><Point><Point><Point> </Polyline> <Polyline> <Point><Point><Point><Point> </Polyline> Can anyone think of a better way, especially a way of splitting up without the need for a second pass? What I'd really like is a trivial way to make xsl treat the string as a node list split at whitespace, but I suspect that that isn't possible! Tim XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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