It looks to me like this:
<xsl:for-each select="//event">
<xsl:sort select="@start" data-type="number"/>
<time_slot time_slot_id="ts{position()}" time_value="{(_at_)start}"/>
</xsl:for-each>
Or have I missed something?
Michael Kay
http://www.saxonica.com/
-----Original Message-----
From: Alexander Koenig [mailto:Alexander(_dot_)Koenig(_at_)mpi(_dot_)nl]
Sent: 12 December 2008 15:53
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] complex numbering problem
Hi all,
I'm fairly new to XSL but after a couple of hours of googling
and thinking about how to structure my xsl file differently I
came here in the hope that someone can help me not using
saxon:assign (I already learned that this would be a bad
thing - but to be honest, I also cannot get it to work with
my Oxygen 9.3 ;-)
I'm using Oxygen 9.3 under SuSE Linux 10.0. XSL 1.0, Saxon 6.5.5
The problem is as follows: I want to transform one kind of
XML files into another kind using XSLT.
This is how (the relevant part of) my source file looks like:
<root>
<layer l-id="l01">
<meta m-id="m01">
<desc><name>layer-interpretation</name><val>abc</val></desc>
<desc><name>layer-type</name><val>some_type</val></desc>
</meta>
<event e-id="l01-001" start="0" end="17.499806"/> <event
e-id="l01-002" start="17.499806" end="17.524455">XYZ</event>
<event e-id="l01-003" start="17.524455"
end="113.487545">XYZ</event> <event e-id="l01-004"
start="113.487545" end="113.554857">XYZ</event> <event
e-id="l01-005" start="113.554857" end="113.94197">XYZ</event>
<event e-id="l01-006" start="113.94197"
end="114.1085">XYZ</event> </layer> <layer l-id="l02"> <meta
m-id="m02">
<desc><name>layer-interpretation</name><val>xyz</val></desc>
<desc><name>layer-type</name><val>some_other_type</val></desc>
</meta>
<event e-id="l02-001" start="0" end="17.7997">XYZ</event>
<event e-id="l02-002" start="17.7997"
end="112.409813">XYZ</event> <event e-id="l02-003"
start="112.409813" end="112.763921">XYZ</event> <event
e-id="l02-004" start="112.763921"
end="113.570947">XYZ</event> </layer> <!--some more layers--> </root>
This is how I want my target file to look like:
<time_order>
<time_slot time_slot_id="ts1" time_value="0"/>
<time_slot time_slot_id="ts2" time_value="0"/>
<time_slot time_slot_id="ts3" time_value="17.499806"/>
<time_slot time_slot_id="ts4" time_value="17.524455"/>
<time_slot time_slot_id="ts5" time_value="17.7997"/>
<time_slot time_slot_id="ts6" time_value="112.409813"/>
<time_slot time_slot_id="ts7" time_value="112.763921"/>
<time_slot time_slot_id="ts8" time_value="113.487545"/>
<time_slot time_slot_id="ts9" time_value="113.554857"/>
<time_slot time_slot_id="ts10" time_value="113.570947"/>
<time_slot time_slot_id="ts11" time_value="113.94197"/>
<time_slot time_slot_id="ts12" time_value="114.1085"/>
</time_order>
That means, I want every time index (even duplicates, because
I need them later on) in a separate time_slot element. The
time_slot elements should be sorted by the time_value in
ascending order and should get a unique id, also in ascending
order. I just cannot get the XSL structured in such a way
that both attributes are in order. It's always one or the
other, but never both. Or when I get both in order, I have
duplicate time_slot_id's instead.
My latest attempt looks like this:
<xsl:template match="event" mode="timeslots">
<time_slot>
<xsl:attribute name="time_slot_id">
<xsl:text>ts</xsl:text>
<xsl:number level="any" value="position()"/>
</xsl:attribute>
<xsl:attribute name="time_value">
<xsl:value-of select="@start"/>
</xsl:attribute>
</time_slot>
<xsl:if test="count(following-sibling::event)=0">
<time_slot>
<xsl:attribute name="time_slot_id">
<xsl:text>ts</xsl:text>
<xsl:number level="any" value="position()"/>
</xsl:attribute>
<xsl:attribute name="time_value">
<xsl:value-of select="@end"/>
</xsl:attribute>
</time_slot>
</xsl:if>
</xsl:template>
With this, both attributes are (almost, but not quite - why?)
in order, but I get duplicate IDs for the "end" attributes.
The result looks like
this:
<time_order>
...
<time_slot time_slot_id="ts1727" time_value="113.487545"/>
<time_slot time_slot_id="ts1728" time_value="113.554857"/>
<time_slot time_slot_id="ts1729" time_value="113.570521"/>
<time_slot time_slot_id="ts1729"
time_value="114.10741400000001"/> <time_slot
time_slot_id="ts1730" time_value="113.791077"/> <time_slot
time_slot_id="ts1730" time_value="114.10859000000001"/>
<time_slot time_slot_id="ts1731"
time_value="113.94197699999999"/> <time_slot
time_slot_id="ts1731" time_value="114.10859000000001"/> </time_order>
The only idea I have to fix this, is a variable which I
increase every time I enter the if block and which is added
to position() to form the ID. But XSL has no variables and so
I'm kind of stuck.
I hope one of the XSL experts out there can help me.
kind regards
Alex
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