RE: SubString Issue!

For the following XML (note I made a change to the source)

<test>
<CreditCard><Highlight>9999-9999-9999-9999</Highlight></CreditCard>
<Name>Jennifer <Highlight>Anniston</Highlight></Name>
<Date.of.Birth>10-06-1969</Date.of.Birth>
</test>

use the following transform:

<?xml version="1.0"?>
<xsl:transform
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"
    xmlns:saxon="http://icl.com/saxon" 
    extension-element-prefixes="saxon">

<xsl:template match="CreditCard">
    <xsl:variable name="mask"><xsl:text>XXXX</xsl:text></xsl:variable>
    <Text>
    <xsl:value-of select="substring(//CreditCard/Highlight/text(), 1, 15)"/>
    <xsl:value-of select="$mask"/>
    </Text>
</xsl:template>

</xsl:transform>

This will get the desired result (I believe).  Note: template has a "match"
attribute instead of name attribute.  The expression how references a
"findable" result in the XML source node set.

Frank

Dr. Frank Mabry
Dept. of EE&CS, U.S. Military Academy
West Point, NY 10996
email: df6954@xxxxxxxxxxxxxxx
Phone: (845) 938-2960


		-----Original Message-----
		From:	Chowdhury, Anisuzzaman
[mailto:Anisuzzaman.Chowdhury@xxxxxxxxxxxxx]
		Sent:	Thursday, June 22, 2000 12:17 PM
		To:	'XSL-List@xxxxxxxxxxxxxxxx'
		Subject:	SubString Issue!

		Part of the XML data:

	
<CreditCard><Highlight>9999-9999-9999-9999</Highlight></CreditCard>
		<Name>Jennifer <Highlight>Anniston</Highlight></Name>
		<Date.of.Birth>10-06-1969</Date.of.Birth>

		I would like to replace all the "Highlight" tags with "B"
and mask the last
		four digits of the credit card number.

		Here are the templates I've created:

		To replace "Highlight" with "B":

		<xsl:template match="Highlight">
		<B><xsl:apply-templates/></B>
		</xsl:template>

		To apply mask:

		<xsl:template name="CreditCard">
		<xsl:variable
name="mask"><xsl:text>XXXX</xsl:text></xsl:variable>
		<Text>
		<xsl:value-of select="substring(CreditCard/text(), 1,
15)"/><xsl:value-of
		select="$mask"/>
		</Text>
		</xsl:template>

		Whenever I try to run this stylesheet on eXcelon Stylus XSLT
processor, I
		get an error message saying "Out of bounds arguments to
substring function".


		Using SAX parser, I get the following output:
		<Text>XXXX</Text>

		The problem is, "Highlight" tag can be anywhere. Is there
any way I can get
		the following output:

		<Text><B>9999-9999-9999-XXXX</B></Text>
	
........................................................................

		I would highly appreciate your suggestions.

		Thanks,
		Anis Chowdhury


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