Subject: Re: [xsl] XPath string comparison of two strings representing calendar dates ... any counterexamples? From: "Wolfgang Laun wolfgang.laun@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Wed, 16 Aug 2017 16:26:38 -0000 |
On 16 August 2017 at 18:09, Costello, Roger L. costello@xxxxxxxxx < xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > > I wish to test to see if the calendar date represented in <Date2> is > greater than (occurs later in chronological time) the calendar date > represented in <Date1>. Here's an XPath expression to do the test: > > /Test/Date2 gt /Test/Date1 > > In this case, the XPath returns true. > > Note that I am doing mere string comparison. I am comparing the string > '20170817' against the string '20170816'. > > Will the XPath always work? > > No. Once the year reaches 5 digits, 2017 will be greater and later than 10010 or so. Well, you wrote "always"! -W
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