nested grouping problem using group-adjacent

Play the video

Subject: nested grouping problem using group-adjacent
From: Jeff Hatch <hatchjk@xxxxxxxxxxxxx>
Date: Wed, 18 Apr 2007 09:44:00 -0600

All,

Having tried to code for this for the past several ... well, I won't admit how long ... I throw it to you for help and beg for mercy. If the solution exists in an archive or faq somewhere, and I've just missed it in my searches, please refer me to it.

Input xml:

<objects>
	<object depth="1">data</object>
	<object depth="1">data</object>
	<object depth="2">data</object>
	<object depth="2">data</object>
	<object depth="3">data</object>
	<object depth="3">data</object>
	<object depth="3">data</object>
	<object depth="2">data</object>
	<object depth="2">data</object>
	<object depth="1">data</object>
	<object depth="2">data</object>
	<object depth="1">data</object>
</objects>

Required output:

<objects>
	<group-1>
		<object depth="1">data</object>
		<object depth="1">data</object>
		<group-2>
			<object depth="2">data</object>
			<object depth="2">data</object>
			<group-3>
				<object depth="3">data</object>
				<object depth="3">data</object>
				<object depth="3">data</object>
			</group-3>
			<object depth="2">data</object>
			<object depth="2">data</object>
		</group-2>
		<object depth="1">data</object>
		<group-2>
			<object depth="2">data</object>
		</group-2>
		<object depth="1">data</object>
	</group-1>
</objects>

My futile attempt:

<xsl:template match="@*|node()"> <xsl:copy> <xsl:apply-templates select="@*|node()"/> </xsl:copy> </xsl:template> <xsl:template match="objects"> <xsl:for-each-group select="*" group-adjacent="(@depth >= 1)"> <xsl:element name="group-1"> <xsl:for-each-group select="current-group()" group- adjacent="(@depth >= 2)"> <xsl:element name="group-2"> <xsl:for-each-group select="current-group()" group- adjacent="(@depth >= 3)"> <xsl:element name="group-3"> <xsl:apply-templates select="current-group()"/> </xsl:element> </xsl:for-each-group> </xsl:element> </xsl:for-each-group> </xsl:element> </xsl:for-each-group> </xsl:template>

My attempt is producing the wrong output, in that (for example) the depth-1 elements are inappropriately being nested in group-2 and group-3 elements. I've done quite a bit of grouping work with xslt 2.0 for other applications, but for some reason this one escapes me.

The input example is a scaled-down structure that would represent flat lists in document-oriented xml that need to be up-translated for structure and depth nesting.

Thanks in advance for any help you could provide ...

Jeff Hatch
Electronic Media Group
Curriculum Department
Church of Jesus Christ of Latter-day Saints


----------------------------------------------------------------------
NOTICE: This email message is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message.

Current Thread
nested grouping problem using group-adjacent Jeff Hatch - 18 Apr 2007 15:44:50 -0000 <= David Carlisle - 18 Apr 2007 16:22:18 -0000 Jeff Hatch - 18 Apr 2007 16:34:09 -0000 Michael Kay - 19 Apr 2007 08:55:29 -0000

<- Previous	Index	Next ->
RE: How Can I Reference previ, Michael Kay	Thread	Re: nested grouping problem u, David Carlisle
Re: How Can I Reference previ, David Carlisle	Date	Re: How Can I Reference previ, Chris M.
	Month

PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Subscribe in XML format

RSS 2.0
Atom 0.3

XML Editor - Download a 15 Day Free Trial Now >

See What's New in Stylus Studio >

Buy Stylus Studio - XML Editor - Now >