XSLT 1.0 Compare Dates
date, xslt, xslt-1.0
Solution
Assuming your dates are in yyyy-mm-dd format (as I understand they are from your other question), this should work with most XSLT 1.0 processors:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:date="http://exslt.org/dates-and-times"
extension-element-prefixes="date">
...
<xsl:for-each select="forms/form">
<xsl:variable name="today" select="translate(substring-before(date:date-time(), 'T'), '-', '')"/>
<xsl:variable name="start" select="translate(start, '-', '')"/>
<xsl:variable name="end" select="translate(end, '-', '')"/>
<xsl:if test="$start <= $today and $today <= $end">
<!-- in progress -->
</xsl:if>
Problem
I want to compare current date against a start date and end date. XML is: ``` <forms> <form id="11"> <start>somedate</start> <end>someotherdate</end> </form> </forms> ``` I am currently trying: ``` <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:ex="http://exslt.org/dates-and-times" extension-element-prefixes="ex" > <xsl:choose> <xsl:when test="end != '' and start != '' and ex:date(start) <= current-date() and current-date() <= ex:date(end)"> <!-- Do Stuff --> </xsl:when> </xsl:choose> ``` I get the following error: ``` xmlXPathCompOpEval: function current-date not found XPath error : Unregistered function XPath error : Stack usage errror <ul class="ccb_forms_ul"></ul> ```