Following is a XSLT 2.0 solution for this:
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:fn="http://dummy-ns"
version="2.0">
<xsl:output method="text" />
<xsl:template match="s">
<xsl:variable name="result"
select="fn:getstring(normalize-space(string-join(//text(), ' ')),
'nutrient')" />
<xsl:value-of select="$result" />
</xsl:template>
<xsl:function name="fn:getstring" as="xs:string">
<xsl:param name="text" as="xs:string " />
<xsl:param name="word" as="xs:string " />
<xsl:variable name="x">
<xsl:for-each select="tokenize(substring-before($text, $word), '
')[position() <= 5]">
<y><xsl:value-of select="." /></y>
</xsl:for-each>
<y><xsl:value-of select="concat('*', $word, '*')" /></y>
<xsl:for-each select="tokenize(substring-after($text, $word), '
')[position() <= 6]">
<y><xsl:value-of select="." /></y>
</xsl:for-each>
</xsl:variable>
<xsl:sequence select="concat('... ', string-join($x//y, ' '), ' ...')" />
</xsl:function>
</xsl:stylesheet>
When this is applied to the XML:
<s id="39" xmlns:z="http://z-ns">
The aforementioned oxygenated
<z:e sem="chebi" ids="33284">nutrient</z:e> emulsion (using the
fluorocarbon FC-80) was placed in a Harvey pediatric oxygenator
(volume 1230cc) and maintained at about 40 DEG C
</s>
The output produced is:
... The aforementioned oxygenated *nutrient* emulsion (using the
fluorocarbon FC-80) ...
This might not be perfect. But it could help you get started.
On 5/2/07, Antony Quinn <aquinn(_at_)ebi(_dot_)ac(_dot_)uk> wrote:
Hello,
I would like to display the context in which a term appears in some
text, in the same way that Google shows the 5 or so words before and
after your search term in the document.
Example
-------
For this input:
<s id="39">
The aforementioned oxygenated
<z:e sem="chebi" ids="33284">nutrient</z:e> emulsion (using the
fluorocarbon FC-80) was placed in a Harvey pediatric oxygenator
(volume 1230cc) and maintained at about 40 DEG C
</s>
I want to show the 5 words before and after "nutrient":
... The aforementioned oxygenated *nutrient* emulsion (using the
fluorocarbon FC-80) ...
Any ideas?
Thanks,
Antony
--
Regards,
Mukul Gandhi
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