and just to show you how anal I can be... (poor Jeni, she must be a saint to put up with all
 of us!)  Jeni, BTW, in looking back at the original note I sent you it looks like the billi
onthSecBug.xsl code was corrupted during the cut'n paste; sorry.

Hi Jeni,

This one will either make you laugh or drive you crazy.  Maybe both.

I was continuing on my date:add testing by checking how decimal seconds were handled.  Being
 studious I thought I would check down to 10^-9.  Everything works as I expected except in o
ne case, which is in the middle of the testing.  I've attached a text version of my output b
elow.  Notice that when the duration is PT0.0000001S for some reason the result loses the 1x
10^-9.  The base is the same for all of the offsets.  I can see nothing in the code that sho
uld cause this to happen.  It happens with both MSXML 4 and Saxon 6.0.2.  My data and styles
heet are also included.

Any ideas?  This wouldn't have anything to do with the British misunderstanding of what a bi
llion is, would it? ;)

Thanks,
Bruce

<output> 
timeStudy
Check to see how fractional seconds are handled
Base: 2002-01-01T00:00:00.000000001
Offset Expected Calculated Template Comment 
PT0.1S 2002-01-01T00:00:00.100000001 2002-01-01T00:00:00.100000001 add 1/10 second 
PT0.01S 2002-01-01T00:00:00.010000001 2002-01-01T00:00:00.010000001 add 1/100 second 
PT0.001S 2002-01-01T00:00:00.001000001 2002-01-01T00:00:00.001000001 add 1/1000 second 
PT0.0001S 2002-01-01T00:00:00.000100001 2002-01-01T00:00:00.000100001 add 1/10,000 second 
PT0.00001S 2002-01-01T00:00:00.000010001 2002-01-01T00:00:00.000010001 add 1/100,000 second 
PT0.000001S 2002-01-01T00:00:00.000001001 2002-01-01T00:00:00.000001001 add 1/1,000,000 seco
nd 
PT0.0000001S 2002-01-01T00:00:00.000000101 2002-01-01T00:00:00.000000100 add 1/10,000,000 se
cond 
PT0.00000001S 2002-01-01T00:00:00.000000011 2002-01-01T00:00:00.000000011 add 1/100,000,000 
second 
PT0.000000001S 2002-01-01T00:00:00.000000002 2002-01-01T00:00:00.000000002 add 1/1,000,000,0
00 second 
-PT0.1S 2001-12-31T11:59:59.9 2001-12-31T-01:-01:0-0.099999 subtract one tenth second 
</output> 

<billionthSecBug.xml> 
<?xml-stylesheet type="text/xsl" href="billionthSecBug.xsl"?> 
<timeStudy xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> 
	<test> 
		<comment> Check to see how fractional seconds are handled</comment>
		<dateTimeBase> 2002-01-01T00:00:00.000000001</dateTimeBase>
		<offset> 
			<comment> add 1/10 second</comment>
			<durationOffset> PT0.1S</durationOffset>
			<dateTimeExpected> 2002-01-01T00:00:00.100000001</dateTimeExpected>
		</offset> 
		<offset> 
			<comment> add 1/100 second</comment>
			<durationOffset> PT0.01S</durationOffset>
			<dateTimeExpected> 2002-01-01T00:00:00.010000001</dateTimeExpected>
		</offset> 
		<offset> 
			<comment> add 1/1000 second</comment>
			<durationOffset> PT0.001S</durationOffset>
			<dateTimeExpected> 2002-01-01T00:00:00.001000001</dateTimeExpected>
		</offset> 
		<offset> 
			<comment> add 1/10,000 second</comment>
			<durationOffset> PT0.0001S</durationOffset>
			<dateTimeExpected> 2002-01-01T00:00:00.000100001</dateTimeExpected>
		</offset> 
		<offset> 
			<comment> add 1/100,000 second</comment>
			<durationOffset> PT0.00001S</durationOffset>
			<dateTimeExpected> 2002-01-01T00:00:00.000010001</dateTimeExpected>
		</offset> 
		<offset> 
			<comment> add 1/1,000,000 second</comment>
			<durationOffset> PT0.000001S</durationOffset>
			<dateTimeExpected> 2002-01-01T00:00:00.000001001</dateTimeExpected>
		</offset> 
		<offset> 
			<comment> add 1/10,000,000 second</comment>
			<durationOffset> PT0.0000001S</durationOffset>
			<dateTimeExpected> 2002-01-01T00:00:00.000000101</dateTimeExpected>
		</offset> 
		<offset> 
			<comment> add 1/100,000,000 second</comment>
			<durationOffset> PT0.00000001S</durationOffset>
			<dateTimeExpected> 2002-01-01T00:00:00.000000011</dateTimeExpected>
		</offset> 
		<offset> 
			<comment> add 1/1,000,000,000 second</comment>
			<durationOffset> PT0.000000001S</durationOffset>
			<dateTimeExpected> 2002-01-01T00:00:00.000000002</dateTimeExpected>
		</offset> 
		<offset> 
			<comment> subtract one tenth second</comment>
			<durationOffset> -PT0.1S</durationOffset>
			<dateTimeExpected> 2001-12-31T11:59:59.9</dateTimeExpected>
		</offset> 
	</test> 
</timeStudy> 
</billionthSecBug.xml> 

<billionthSecBug.xsl> 
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:date="h
ttp://exslt.org/dates-and-times" extension-element-prefixes="date"> 
	<xsl:import href="date.add.template.xsl" /> 
	<xsl:template match="/"> 
		<xsl:apply-templates select="timeStudy" /> 
	</xsl:template> 
	<xsl:template match="timeStudy"> 
		<xsl:element name="h1"> 
			<xsl:text> timeStudy</xsl:text>
		</xsl:element> 
		<xsl:apply-templates select="test" /> 
	</xsl:template> 
	<xsl:template match="test"> 
		<xsl:element name="h2"> 
			<xsl:apply-templates select="comment" /> 
		</xsl:element> 
		<xsl:element name="h3"> 
			<xsl:text> Base: </xsl:text>
			<xsl:apply-templates select="dateTimeBase" /> 
		</xsl:element> 
		<xsl:element name="table"> 
			<xsl:element name="tr"> 
				<xsl:element name="th"> Offset</xsl:element>
				<xsl:element name="th"> Expected</xsl:element>
				<xsl:element name="th"> Calculated Template</xsl:element>
				<xsl:element name="th"> Comment</xsl:element>
			</xsl:element> 
			<xsl:apply-templates select="offset" /> 
		</xsl:element> 
	</xsl:template> 
	<xsl:template match="comment | dateTimeBase | durationOffset | dateTimeExpected"> 
		<xsl:value-of select="." /> 
	</xsl:template> 
	<xsl:template match="offset"> 
		<xsl:variable name="dateTimeResulttemplate"> 
			<xsl:call-template name="date:add"> 
				<xsl:with-param name="date-time" select="../dateTimeBase" /> 
				<xsl:with-param name="duration" select="durationOffset" /> 
			</xsl:call-template> 
		</xsl:variable> 
		<xsl:element name="tr"> 
			<xsl:element name="td"> 
				<xsl:apply-templates select="durationOffset" /> 
			</xsl:element> 
			<xsl:element name="td"> 
				<xsl:apply-templates select="dateTimeExpected" /> 
			</xsl:element> 
			<xsl:element name="td"> 
				<xsl:element name="div"> 
					<xsl:if test="$dateTimeResulttemplate!=dateTimeExpected"> 
						<xsl:attribute name="style"> color:red</xsl:attribute>
					</xsl:if> otab	</offset>
		<of
					<xsl:value-of select="$dateTimeResulttemplate" /> 
				</xsl:element> 
			</xsl:element> 
			<xsl:element name="td"> 
				<xsl:apply-templates select="comment" /> 
			</xsl:element> 
		</xsl:element> 
	</xsl:template> 
</xsl:stylesheet> 
</billionthSecBug.xsl> 

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