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Subject:
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Need help in creating folder tree
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Posted By:
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velmj
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Post Date:
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11/19/2003 12:11:22 AM
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Hi Friends,
I need help in creating a folder tree like structure from an xml file. My xml file looks like this.
<topic id = "living part">
<baseName>
<baseNameString>
Living Part
</baseNameString>
</baseName>
</topic>
<topic id = "animal">
<instanceOf>
<topicRef xlink:href="#living part"/>
</instanceOf>
<baseName>
<baseNameString>
Animal
</baseNameString>
</baseName>
</topic>
<topic id = "carnivorous">
<instanceOf>
<topicRef xlink:href="#animal"/>
</instanceOf>
<baseName>
<baseNameString>
Carnivorous
</baseNameString>
</baseName>
</topic>
<topic id = "herbivorous">
<instanceOf>
<topicRef xlink:href="#animal"/>
</instanceOf>
<baseName>
<baseNameString>
Herbivorous
</baseNameString>
</baseName>
</topic>
...
My Output should be like,
Living Part
Animal
Carnivorous
Herbivorous
...
...
Grateful to any suggestion.
Thanks,
Vel.
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Reply By:
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armmarti
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Reply Date:
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11/19/2003 5:28:44 AM
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Hi,
I've added DTD to your XML doc (you can make it more "granular"). It's better to define an attribute 'id' as of type ID (and hence you can't use whitespace there):
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE doc[
<!ELEMENT doc (topic)+>
<!ELEMENT topic ANY>
<!ATTLIST topic id ID #REQUIRED>
<!ELEMENT baseNameString ANY>
<!ELEMENT baseName ANY>
<!ELEMENT instanceOf ANY>
<!ELEMENT topicRef ANY>
<!ATTLIST topicRef xlink:href CDATA #REQUIRED>
]>
<doc xmlns:xlink="xlink-URI-here">
<topic id = "livingpart">
<baseName>
<baseNameString>
Living Part
</baseNameString>
</baseName>
</topic>
<topic id = "animal">
<instanceOf>
<topicRef xlink:href="#livingpart"/>
</instanceOf>
<baseName>
<baseNameString>
Animal
</baseNameString>
</baseName>
</topic>
<topic id = "carnivorous">
<instanceOf>
<topicRef xlink:href="#animal"/>
</instanceOf>
<baseName>
<baseNameString>
Carnivorous
</baseNameString>
</baseName>
</topic>
<topic id = "herbivorous">
<instanceOf>
<topicRef xlink:href="#animal"/>
</instanceOf>
<baseName>
<baseNameString>
Herbivorous
</baseNameString>
</baseName>
</topic>
</doc>
And the stylesheet is:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xlink="xlink-URI-here">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:template match="/">
<xsl:apply-templates select="doc/topic[@id = 'livingpart']"/>
</xsl:template>
<xsl:template match="topic">
<xsl:element name="{@id}">
<xsl:apply-templates select="/doc/topic[substring-after(instanceOf/topicRef/@xlink:href, '#') = current()/@id]"/>
</xsl:element>
</xsl:template>
</xsl:stylesheet>
I've written this quickly, so one can find another more elegant solution.
Regards,
Armen
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