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Unit conversion problem.

Hi

I'm a bit of a noob to xslt. I have a data.xml document like this..

input.xml
<energy>
..lots and lots of other data.....
<units>(Watts)< \units>
<value>1000.0<\ value>
</energy>

Now I want to have an xslt stylesheet that will convert it from watts to
kilowatts.

output.xml
<energy>
..lots and lots of other data.....
<units>(KiloWat ts)<\units>
<value>1.0<\val ue>
</energy>

Any ideas?

Thanks
Jul 20 '05 #1
2 2056
Tempore 22:50:17, die Wednesday 09 February 2005 AD, hinc in foro {comp.text.xml} scripsit plopez <plopez@spam_re movethis crazy remove.nrcan.gc .ca>:
Hi

I'm a bit of a noob to xslt. I have a data.xml document like this..

input.xml
<energy>
..lots and lots of other data....
<units>(Watts)< \units>
<value>1000.0<\ value>
</energy>

Now I want to have an xslt stylesheet that will convert it from watts to
kilowatts.

output.xml
<energy>
..lots and lots of other data.....
<units>(KiloWat ts)<\units>
<value>1.0<\val ue>
</energy>

Any ideas?

Hi,

You'll need a conversion table in XML.
Now if only Google would output XHTML...
http://www.google.com/search?q=1000....29+in+kilowatt
If the watt->kilowatt is really the only conversion, you can use:

<xsl:styleshe et version="1.0"
xmlns:xsl="http ://www.w3.org/1999/XSL/Transform">

<xsl:template match="node()|@ *">
<xsl:copy>
<xsl:apply-templates select="node()| @*"/>
</xsl:copy>
</xsl:template>

<xsl:template match="units[.='(Watts)']">
<units>(KiloWat ts)</units>
</xsl:template>

<xsl:template match="value[preceding-sibling::*[1]='(Watts)']">
<value><xsl:val ue-of select="format-number(. div 1000,'#.0')"/></value>
</xsl:template>

</xsl:stylesheet>
regards,
--
Joris Gillis (http://www.ticalc.org/cgi-bin/acct-v...i?userid=38041)
Vincit omnia simplicitas
Keep it simple
Jul 20 '05 #2
Thanks!!

It my real world problem was a little different.

<name>Cooling </name>
<units>(W)</units>
<binned_data type="monthly">
<index>0</index>
<steps>744</steps>
<active_steps>7 44</active_steps>
<sum>0.000000 </sum>
</binned_data>
But you pointed me in the right direction!

It now my template looks like..
<xsl:template match="//sum[parent::*/preceding-sibling::units= '(W)']">
<sum><xsl:val ue-of select="format-number(. div 1000,'#.0')"/></sum>
</xsl:template>
It probably would be better if I made the "units" value an attribute of
"sum". That way I could use a conversion table for all units and all
entities.

Thanks again!

PL

"Joris Gillis" <ro**@pandora.b e> wrote in message
news:op******** ******@news.pan dora.be...
Tempore 22:50:17, die Wednesday 09 February 2005 AD, hinc in foro
{comp.text.xml} scripsit plopez <plopez@spam_re movethis crazy
remove.nrcan.gc .ca>:
Hi

I'm a bit of a noob to xslt. I have a data.xml document like this..

input.xml
<energy>
..lots and lots of other data....
<units>(Watts)< \units>
<value>1000.0<\ value>
</energy>

Now I want to have an xslt stylesheet that will convert it from watts to
kilowatts.

output.xml
<energy>
..lots and lots of other data.....
<units>(KiloWat ts)<\units>
<value>1.0<\val ue>
</energy>

Any ideas?

Hi,

You'll need a conversion table in XML.
Now if only Google would output XHTML...
http://www.google.com/search?q=1000....29+in+kilowatt
If the watt->kilowatt is really the only conversion, you can use:

<xsl:styleshe et version="1.0"
xmlns:xsl="http ://www.w3.org/1999/XSL/Transform">

<xsl:template match="node()|@ *">
<xsl:copy>
<xsl:apply-templates select="node()| @*"/>
</xsl:copy>
</xsl:template>

<xsl:template match="units[.='(Watts)']">
<units>(KiloWat ts)</units>
</xsl:template>

<xsl:template match="value[preceding-sibling::*[1]='(Watts)']">
<value><xsl:val ue-of select="format-number(. div 1000,'#.0')"/></value>
</xsl:template>

</xsl:stylesheet>
regards,
--
Joris Gillis (http://www.ticalc.org/cgi-bin/acct-v...i?userid=38041)
Vincit omnia simplicitas
Keep it simple

Jul 20 '05 #3

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