Viewing file:  dc_20001112.py (1.68 KB) -rw-r--r--
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#David Carlisle <davidc@nag.co.uk> plays nifty tricks with xsl:key
from Xml.Xslt import test_harness
sheet_1 = """<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0"
>
<xsl:output method="xml" indent="yes"/>
<xsl:key name="items-by-itemid"
match="item"
use="concat(generate-id(..), @itemid)"
/>
<xsl:template match="itemlist">
<xsl:variable name="x" select="generate-id(.)"/>
<xsl:for-each select="item[count(. |
key('items-by-itemid',
concat($x, @itemid))[1]) = 1]">
<xsl:sort select="@itemid" />
<tr>
<td><xsl:value-of select="@itemid"/></td>
<td><xsl:value-of select="sum(key('items-by-itemid',
concat($x, @itemid))/@units)"/></td>
</tr>
</xsl:for-each>
</xsl:template>
<xsl:template match='text()'/>
</xsl:stylesheet>"""
source_1 = """<x>
<itemlist>
<item itemid="Z101" units="1"/>
<item itemid="Z102" units="2"/>
<item itemid="Z101" units="4"/>
</itemlist>
<itemlist>
<item itemid="y101" units="1"/>
<item itemid="y102" units="2"/>
<item itemid="y102" units="3"/>
<item itemid="y101" units="4"/>
<item itemid="y101" units="5"/>
</itemlist>
</x>"""
expected_1 = """<?xml version="1.0" encoding="UTF-8"?>
<tr>
<td>Z101</td>
<td>5</td>
</tr>
<tr>
<td>Z102</td>
<td>2</td>
</tr>
<tr>
<td>y101</td>
<td>10</td>
</tr>
<tr>
<td>y102</td>
<td>5</td>
</tr>"""
def Test(tester):
source = test_harness.FileInfo(string=source_1)
sheet = test_harness.FileInfo(string=sheet_1)
test_harness.XsltTest(tester, source, [sheet], expected_1)
return
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