Hi can you please explain me what exactly the below line is doing and how it
is working?
<xsl:for-each
select="/root/connection[not(/root/connection/@destination = @source)]">
Waiting for your mail!
Thanks
Yaswanth Ravella
-----Original Message-----
From: Ronan Klyne [mailto:ronan(_dot_)klyne(_at_)groupbc(_dot_)com]
Sent: Monday, August 20, 2007 1:40 PM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] Connecting the Source and Destination fields
Ooops - A mistake in the XSL - here's the working one:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
version="1.0">
<xsl:output method="html" indent="yes" encoding="ISO-8859-1"/>
<xsl:key name="source-conn" match="/root/connection" use="@source"/>
<xsl:template match="/root">
<xsl:for-each
select="/root/connection[not(/root/connection/@destination = @source)]">
<xsl:value-of select="@source"/>
<xsl:call-template name="do-next">
<xsl:with-param name="source" select="@source"/>
</xsl:call-template>
<xsl:text>
</xsl:text>
</xsl:for-each>
</xsl:template>
<xsl:template name="do-next">
<xsl:param name="source"/>
<xsl:variable name="conn" select="key('source-conn', $source)"/>
<xsl:if test="$conn">
<xsl:text> -> </xsl:text>
<xsl:value-of select="$conn/@destination"/>
<xsl:call-template name="do-next">
<xsl:with-param name="source" select="$conn/@destination"/>
</xsl:call-template>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
# r
Ronan Klyne wrote:
To me, keys seem to be the way forward here. Does the following
stylesheet make sense to you?
------- XSL:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
version="1.0">
<xsl:output method="html" indent="yes" encoding="ISO-8859-1"/>
<xsl:key name="source-conn" match="/root/connection" use="@source"/>
<xsl:template match="/root">
<xsl:for-each
select="/root/connection[not(/root/connection/@destination = @source)]">
<xsl:value-of select="@source"/>
<xsl:call-template name="do-next">
<xsl:with-param name="source" select="@destination"/>
</xsl:call-template>
<xsl:text>
</xsl:text>
</xsl:for-each>
</xsl:template>
<xsl:template name="do-next">
<xsl:param name="source"/>
<xsl:variable name="conn" select="key('source-conn', $source)"/>
<xsl:if test="$conn">
<xsl:text> -> </xsl:text>
<xsl:value-of select="$conn/@source"/>
<xsl:call-template name="do-next">
<xsl:with-param name="source" select="$conn/@destination"/>
</xsl:call-template>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
------- INPUT:
<root>
<connection destination="event.3" source="event.0"/>
<connection destination="event.1" source="event.2"/>
<connection destination="event.2" source="event.3"/>
<connection destination="event.4" source="event.1"/>
</root>
------- END
# r
Yaswanth wrote:
Hi Andrew,
Thanks for the reply
But I have some issues !
What if I have some ting like this ?
<connection destination="event.3" source="event.0"/>
<connection destination="event.1" source="event.2"/>
<connection destination="event.2" source="event.3"/>
<connection destination="event.4" source="event.1"/>
By using
<xsl:sort select="@source"/>
For understanding my input will change to :
<connection destination="event.3" source="event.0"/>
<connection destination="event.4" source="event.1"/>
<connection destination="event.1" source="event.2"/>
<connection destination="event.2" source="event.3"/>
My output will be
event.0 -> event.3 -> event.4 -> event.1 -> event.2
But I am expecting
event.0 -> event.3 -> event.2 -> event.1 -> event.4
Regards,
Yaswanth
-----Original Message-----
From: Andrew Welch [mailto:andrew(_dot_)j(_dot_)welch(_at_)gmail(_dot_)com]
Sent: Monday, August 20, 2007 1:04 PM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] Connecting the Source and Destination fields
On 8/20/07, Yaswanth <yaswanth(_dot_)mtrx(_at_)gmail(_dot_)com> wrote:
Hi All,
I am trying to arrange the chain of event connections by mapping the
Source
and Destination of each Connection.
When my XML file is something like this:
<connection destination="event.1"source="event.0"/>
<connection destination="event.2" source="event.1"/>
<connection destination="event.3" source="event.2"/>
<connection destination="event.4" source="event.3"/>
// Ordered
// Please note that The Destination Value of any node is equal to the
Source
value of the next Node
Here I am taking the 'source' value from the first 'connection' and by
keep
on appending the 'destination' value of all the 'connection's I get the
Output as:
event.0 -> event.1 -> event.2 -> event.3 -> event.4
Problem:
Now my XML input file is changed to some thing like this :
<connection destination="event.1" source="event.0"/>
<connection destination="event.3" source="event.2"/>
<connection destination="event.2" source="event.1"/>
<connection destination="event.4" source="event.3"/>
// Unordered
// Please note that The Destination Value of any node is not always
equal
to
the Source value of the next Node
If I process this XML file in the same way I did the earlier one I will
get
output as:
event.0 -> event.1 -> event.3 -> event.2 -> event.4
Here event.1's destination is event.2 only but in the Output I am having
event.3 as the destination.
event.2's destination is event.3 only but in the Output I am having
event.4
as the destination.
event.3's destination is event.4 only but in the Output I am having
event.2
as the destination.
I know this is happening because of the Logic I used in arranging these
things..
Can I get some push on how to arrange these things in Order?!
Sort them :
<xsl:sort select="@source"/>
?
--
Ronan Klyne
Business Collaborator Developer
Tel: +44 (0)870 163 2555
ronan(_dot_)klyne(_at_)groupbc(_dot_)com
www.groupbc.com
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