[xsl] sum (substring-before)

Subject: [xsl] sum (substring-before)
From: "Winnie Leung" <wleung@xxxxxxxxxxxxxx>
Date: Fri, 24 Aug 2001 15:31:10 +0100
dear all,

is it possible to do a sum and a substring-before together?
my data:
20.00
10.00CR
5.00CR

(CR means negative)

and i want to get a total of all (i.e. 20.00+(-10.00)+(-5.00) = 5)

thanks in advance,
wing


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