RE: [xsl] Finding parent of the middle child

["Michael Kay" <mike@xxxxxxxxxxxx>]

You don't want

//*[position() ... ]

you want

(//*)[position() ... ]

I'm sure the difference has already been explained on this thread.

Michael Kay
http://www.saxonica.com/


> -----Original Message-----
> From: Brook Ellingwood [mailto:belling@xxxxxxx]
> Sent: 23 June 2005 01:25
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: RE: [xsl] Finding parent of the middle child
>
> Recap: There are several section elements containing a
> variable number of child elements. I want to return a count
> of all the child elements and identify the mid point of all
> the child elements. I then want to split the parent section
> elements after the parent containing the middle child.
>
> I have this working on my local machine using MSXML, but it
> fails when I convert it on the staging servers using Xalan
> Java 2.4.1 and I'm stumped.
>
> Relevant XSL:
> <xsl:variable name="gearMid"
> select="generate-id((//rec_gear_sec/*)[round(count(//rec_gear_
> sec/*) div 2)])"/>
>
> <xsl:template name="rec_gear_list">
> 	<xsl:for-each select="//rec_gear_sec/*">
> 		<xsl:if test="generate-id(.) = $gearMid">
> 			<xsl:variable name="splitPoint"
> select="count(../preceding-sibling::*) +1"/>
> 			<div style="width:275;
> float:left;padding-right:10px;">
> 				<xsl:apply-templates
> select="//*[position() &lt; $splitPoint and name()='rec_gear_sec']"/>
> 				<xsl:apply-templates
> select="parent::*"/>
> 			</div>
> 			<div style="width:285; float:right;">
> 				<xsl:apply-templates
> select="//*[position() &gt; $splitPoint and name()='rec_gear_sec']"/>
> 			</div>
> 		</xsl:if>
> 	</xsl:for-each>
> </xsl:template>
>
> That for-each is probably a little inefficient, but the real
> problem is the output. In Xalan it gets the group in the
> first div right, but in the second div it gives me *all* the
> rec_gear_sec elements, not just the ones with a position()
> greater than $splitPoint. It seems like this is a bug, and I
> could really use a workaround. I've already spent far more
> time on this one than it deserves. Any ideas?
>
> -- Brook
>
> Sample XML:
>
> 	<rec_gear_sec>
> 		<rec_gear_title>Official Papers</rec_gear_title>
> 		<rec_gear>Valid passport and visas</rec_gear>
> 		<rec_gear>Airline tickets</rec_gear>
> 		<rec_gear>International health card with
> immunizations</rec_gear>
> 	</rec_gear_sec>
> 	<rec_gear_sec>
> 		<rec_gear_title>Clothing</rec_gear_title>
> 		<rec_gear>Midweight wool or fleece
> jacket/sweater</rec_gear>
> 		<rec_gear>Wool or fleece pants</rec_gear>
> 		<rec_gear>Midweight thermal underwear top and
> bottom, synthetic</rec_gear>
> 		<rec_gear>Expedition weight thermal underwear
> top and bottom, synthetic</rec_gear>
> 		<rec_gear>T-shirts, mix of synthetic and
> cotton</rec_gear>
> 		<rec_gear>Long-sleeve synthetic shirts</rec_gear>
> 		<rec_gear>Synthetic, quick-drying hiking
> shorts</rec_gear>
> 		<rec_gear>Synthetic, quick-drying hiking
> pants</rec_gear>
> 		<rec_gear>Underwear</rec_gear>
> 		<rec_gear>Hiking socks - wool and/or
> synthetic</rec_gear>
> 		<rec_gear>Liner socks</rec_gear>
> 	</rec_gear_sec>
> 	<rec_gear_sec>
> 		<rec_gear_title>Outerwear</rec_gear_title>
> 		<rec_gear>Waterproof, breathable jacket</rec_gear>
> 		<rec_gear>Waterproof, breathable pants</rec_gear>
> 		<rec_gear>Insulated down or synthetic filled
> jacket</rec_gear>
> 		<rec_gear>Wind jacket and/or pants (optional)
> </rec_gear>
> 	</rec_gear_sec>
> 	<rec_gear_sec>
> 		<rec_gear_title>Footwear</rec_gear_title>
> 		<rec_gear>Water-resistant leather hiking boots,
> midweight boots work great</rec_gear>
> 		<rec_gear>Camp shoes - sneakers or sport
> sandals</rec_gear>
> 	</rec_gear_sec>
> 	<rec_gear_sec>
> 		<rec_gear_title>Clothing Accessories</rec_gear_title>
> 		<rec_gear>Balaclava or neck gaiter</rec_gear>
> 		<rec_gear>Wool or fleece mittens/gloves</rec_gear>
> 		<rec_gear>Thin gloves or mitten liners</rec_gear>
> 		<rec_gear>Wool or fleece hat</rec_gear>
> 		<rec_gear>Gaiters, knee-length</rec_gear>
> 		<rec_gear>Sun hat </rec_gear>
> 	</rec_gear_sec>
> 	<rec_gear_sec>
> 		<rec_gear_title>City Clothing</rec_gear_title>
> 		<rec_gear>Bring a few lightweight, easily
> washable items for travel and when you are not climbing</rec_gear>
> 		<rec_gear>Comfortable shoes</rec_gear>
> 	</rec_gear_sec>
> 	<rec_gear_sec>
> 		<rec_gear_title>Travel Accessories</rec_gear_title>
> 		<rec_gear>Water bottles (two 1-quart) or a
> hydration system plus one 1 qt. water bottle</rec_gear>
> 		<rec_gear>Headlamp and spare lithium
> batteries/bulb (no flashlights!)</rec_gear>
> 		<rec_gear>Sunglasses with dark lenses</rec_gear>
> 		<rec_gear>Ski goggles</rec_gear>
> 		<rec_gear>Toilet paper (1 roll)</rec_gear>
> 		<rec_gear>Hand sanitizer gel</rec_gear>
> 		<rec_gear>Collapsible trekking poles</rec_gear>
> 		<rec_gear>Favorite energy snacks and powdered
> drinks</rec_gear>
> 		<rec_gear>Sunblock and lip balm with high SPF</rec_gear>
> 		<rec_gear>Toiletry kit</rec_gear>
> 		<rec_gear>Small bath towel</rec_gear>
> 		<rec_gear>Bio-degradable soap/shampoo</rec_gear>
> 		<rec_gear>Personal first-aid kit</rec_gear>
> 		<rec_gear>Rain cover and two large plastic
> trash bags for your daypack and duffel bag </rec_gear>
> 	</rec_gear_sec>
> 	<rec_gear_sec>
> 		<rec_gear_title>Field Gear</rec_gear_title>
> 		<rec_gear>Sleeping bag rated to 100F or less </rec_gear>
> 	</rec_gear_sec>
> 	<rec_gear_sec>
> 		<rec_gear_title>Optional Field Gear</rec_gear_title>
> 		<rec_gear>Camera, lenses and lots of film</rec_gear>
> 		<rec_gear>Small binoculars (highly
> recommended)</rec_gear>
> 		<rec_gear>Reading and writing materials</rec_gear>
> 		<rec_gear>Watch with alarm or travel clock</rec_gear>
> 		<rec_gear>Folding-style umbrella</rec_gear>
> 		<rec_gear>Earplugs</rec_gear>
> 		<rec_gear>Bandanna</rec_gear>
> 		<rec_gear>Water filter equipment or iodine
> tablets (bottled water available for purchase)</rec_gear>
> 		<rec_gear>Insect repellent with DEET</rec_gear>
> 		<rec_gear>Spare contact lenses or prescription
> glasses</rec_gear>
> 		<rec_gear>Ziploc bags, to protect camera,
> binoculars, etc. from dust</rec_gear>
> 	</rec_gear_sec>
> 	<rec_gear_sec>
> 		<rec_gear_title>Luggage</rec_gear_title>
> 		<rec_gear>2 duffel bags, 1 large enough for all
> climbing gear and clothing and a second bag with non climbing
> items to be left at the hotel</rec_gear>
> 		<rec_gear>Luggage tags and luggage locks</rec_gear>
> 		<rec_gear>Passport pouch or money belt</rec_gear>
> 		<rec_gear>Daypack, 2000-3000 cu. in. to be used
> during climb</rec_gear>
> 	</rec_gear_sec>