Hi,

I need some help with the following
input xml
<document>
<item>
<itemdata>text/plain plain text data sample 1</itemdata>
</item>
<item>
<itemdata>text/plain plain text data sample 2 </itemdata>
</item>
<item>
<itemdata>text/html html data sample 1</itemdata>
</item>
<item>
<itemdata>text/plain plain text data sample 3</itemdata>
</item>
</document>

(the data in each itemdata node is encoded therefore it's not easy do a straight forward test.)

i want to iterate through the itemdata nodes and do the following
1) if there is 'text/html' in the data then break the iteration and just display the html output ( in this case text/html html data sample 1)
2) if there's no 'text/html' then out put
text/plain plain text data sample 1
text/plain plain text data sample 2
text/plain plain text data sample 3

any assistance would be very much appreciated.

thanks you

There's no iteration in XSLT, only functional mapping; therefore you can't "break" an iteration. (Think of xsl:for-each as effectively processing all the selected items in parallel).

Since you haven't given your real input data I can't give you a concrete answer. It looks to me as if you can select the items you need to process and then process them, ignoring the others: for example in psuedocode

if exists(itemData[. = 'text/plain html']
then process(itemData[. = 'text/plain html'][1]
else process(itemData[. = text/plain text']

__________________
Michael Kay
http://www.saxonica.com/
Author, XSLT 2.0 and XPath 2.0 Programmer\'s Reference

Thank you for your reply. The input data contains encoded messages which have to be decoded ( some times twice) to check whether it's html or non html data. therefore i'm unable to do the check on the text.

eg <itemData>DgAKAAAAygAIAAIA0wBmcm9tIHVrYXN3YXNwMDIu dHJhdnAubmV0IChbMTAuMTEwLjEyMC4xODRd
KSAgICAgICAgICBieSB1a2FzbGRocDAxLmV1cHJvZC50cmF2cC 5uZXQgKExvdHVzIERvbWlubyBS
ZWxlYXNlIDcuMC4zKSAgICAgICAgICB3aXRoIEVTTVRQIGlkID IwMTAxMTIzMTYyODAwOTItMjA5
MzggOyAgICAgICAgICBUdWUsIDIzIE5vdiAyMDEwIDE2OjI4Oj AwICswMDAwUmVjZWl2ZWQ6IGZy
....</itemData>


Currently my output contains both the html and non html data. I tried to save the results after every decode to a result tree and then read it form there but getting errors in java



<xsl:varaible name = outputNode>
<!--doing the decoding and if the data is html store it in
<htmlText>
else store it in <plainText>
</xsl:variable>
<xsl:variable name="output">
<xsl:choose>
<xsl:when test="exsl:node-set($outputNode/htmlText)">
<xsl:value-of select="exsl:node-set($outputNode/htmlText[1])"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="exsl:node-set($outputNode/plainText)"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>

<span><xsl:value-of select="$output"/></span>

Then you need a multi-pass solution: decode the data on the first pass, select it on the second.

__________________
Michael Kay
http://www.saxonica.com/
Author, XSLT 2.0 and XPath 2.0 Programmer\'s Reference