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RE: filtering

2004-11-02 08:52:33
Thanks Jeni and Mukul.
I chose to adopt some of Jeni's version, since it required the least
modification to my own implementation, but it seems that Mukul's version is
to favour in the long run.

Thanks for the quick response :-)

Sincerely,
Daniel


-----Original Message-----
From: Mukul Gandhi [mailto:mukul_gandhi(_at_)yahoo(_dot_)com] 
Sent: 1. november 2004 15:52
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] filtering


Here is a generic solution I wrote! A downside though;
it relies on node-set function..

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:msxsl="urn:schemas-microsoft-com:xslt"
exclude-result-prefixes="msxsl">

<xsl:output method="xml" indent="yes"
encoding="UTF-8"/>
        
<xsl:template match="/root">
  <root>
    <xsl:variable name="rtf">
       <xsl:for-each select="row">
         <xsl:variable name="curr_row" select="."/>
         <xsl:variable name="x">
           <xsl:for-each select="column">
             <xsl:if test="position() = /root/header/*">
               <xsl:if test="normalize-space(.) = ''">
                 1
               </xsl:if>
             </xsl:if>
           </xsl:for-each>
         </xsl:variable>
         <xsl:if test="not(contains($x, '1'))">
           <success>
             <xsl:for-each select="/root/header/*">
                <xsl:element name="{name()}">
                  <xsl:value-of select="$curr_row/column[position()
= current()]"/>
                </xsl:element>
             </xsl:for-each>
           </success>
         </xsl:if>
       </xsl:for-each>
     </xsl:variable>
     <flow>
        <total_in><xsl:value-of select="count(row)"
/></total_in>
        <total_out><xsl:value-of select="count(row) -
count(msxsl:node-set($rtf)/*)" /></total_out>
     </flow>
     <xsl:copy-of select="msxsl:node-set($rtf)/*"/>
   </root>
</xsl:template>

</xsl:stylesheet>

Regards,
Mukul

--- Daniel Heskia <daniel(_at_)heskia(_dot_)dk> wrote:

Hi.
I am trying to filter out data sets that do not have
any data in the column
numbers specified in "header" of the xml.

The header specifies that columns 1, 2, 3 and 7 are
crucial in this
particular instance and must not be empty. The
values differ from time to
time (I cannot hardcode the numbers in the xsl), but
the element names in
"header" (AAA, BBB etc.) are static for this type of
data).

I need to test if the column numbers specified in
the header are non-empty
for each each row. I have tried to assign the values
of the header data to
variables and do something like: for each row, if
test not(column[$_aaa]='')
create the element. This, however, I cannot get to
work.

Does anyone have a good idea?

xml-input:

<root>
  <header> 
    <AAA>1</AAA>
    <BBB>2</BBB>
    <CCC>7</CCC>
    <DDD>3</DDD>
 </header>
  <row>
    <column>Dude Looks like a Lady</column>
    <column>Local</column>
    <column>28-10-2004</column>
    <column>51,23</column>
    <column />
    <column>80563</column>
    <column>IE000000004</column>
  </row>
  <row>
    <column>Never Ending Story</column>
    <column>Test</column>
    <column>21-02-2003</column>
    <column>51,23</column>
    <column />
    <column>80563</column>
    <column />
  </row>
</root>

xml-output:
Note 1 element filtered out because column 7 was
empty

<root>
  <flow>
    <total_in>2</total_in>
    <total_out>1</total_out>
  </flow>
  <success>
    <AAA>Dude Looks Like a Lady</AAA>
    <BBB>Local</BBB>
    <CCC>IE000000004</CCC>
    <DDD>28-10-2004</DDD>
  </success>
</root>



                
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