cf8c3a84ca
Currently, MARC authorities are indexed (assuming Zebra
is used) with Zebra's GRS-1 module. However, it does
not appear to be possible to index phrases that cross
subfield boundaries using the GRS-1 module's records.abs
config file's melm, elm, and xelm directives.
Since it is necessary to be able to efficiently search
an entire authority heading (e.g., to see if a given
bib heading is authorized), I'm proposing a switch
to Zebra's DOM XML filter module, which uses XSLT
to generate the words and phrases to be indexed from the
original MARC XML (or ISO2709) record.
The file authority-zebra-indexdefs.xml is an XSLT stylesheet
to implement the new indexing regime. It is based on the
MARC21 authority record.abs with the following changes:
* addition of 148/448/548
* changed name of "see" indexes to "see-from"
* changed name of "see-also" indexes to "see-also-from"
* added index on the subject thesaurus based on
the 008/11 and 040$f
* added indexes on the full heading
authority-zebra-indexdefs.xml was generated from
authority-koha-indexdefs.xml via the XSL transform
koha-indexdefs-to-zebra.xsl. authority-koha-indexdefs.xml
is the actual master version of the indexing definitions,
and was created to provide a much more compact syntax
over the raw XSLT that is to be passed to Zebra.
An experimental schema for Koha indexing definitions is
under way; my aim is to propose a simple format that can
be readily worked with, and perhaps even generated as
a serialization of indexing definitions that are set up
via administration settings in the Koha database itself.
Signed-off-by: Chris Cormack <crc@liblime.com>
Signed-off-by: Joshua Ferraro <jmf@liblime.com>
281 lines
14 KiB
XML
281 lines
14 KiB
XML
<?xml version='1.0'?>
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<xsl:stylesheet version="1.0"
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xmlns:marc="http://www.loc.gov/MARC21/slim"
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xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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xmlns:xslo="http://www.w3.org/1999/XSL/TransformAlias"
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xmlns:z="http://indexdata.com/zebra-2.0"
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xmlns:kohaidx="http://www.koha.org/schemas/index-defs">
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<xsl:namespace-alias stylesheet-prefix="xslo" result-prefix="xsl"/>
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<xsl:output indent="yes" method="xml" version="1.0" encoding="UTF-8"/>
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<!-- disable all default text node output -->
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<xsl:template match="text()"/>
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<!-- Keys on tags referenced in the index definitions -->
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<xsl:key name="index_control_field_tag" match="kohaidx:index_control_field" use="@tag"/>
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<xsl:key name="index_subfields_tag" match="kohaidx:index_subfields" use="@tag"/>
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<xsl:key name="index_heading_tag" match="kohaidx:index_heading" use="@tag"/>
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<xsl:template match="kohaidx:index_defs">
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<xslo:stylesheet version="1.0">
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<xslo:output indent="yes" method="xml" version="1.0" encoding="UTF-8"/>
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<xslo:template match="text()"/>
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<xslo:template match="text()" mode="index_subfields"/>
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<xslo:template match="text()" mode="index_heading"/>
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<xslo:template match="text()" mode="index_subject_thesaurus"/>
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<xslo:template match="/">
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<xslo:if test="marc:collection">
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<collection>
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<xslo:apply-templates select="marc:collection/marc:record"/>
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</collection>
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</xslo:if>
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<xslo:if test="marc:record">
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<xslo:apply-templates select="marc:record"/>
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</xslo:if>
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</xslo:template>
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<xslo:template match="marc:record">
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<xslo:variable name="controlField001" select="normalize-space(marc:controlfield[@tag='001'])"/>
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<z:record type="update">
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<xslo:attribute name="z:id"><xslo:value-of select="$controlField001"/></xslo:attribute>
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<xslo:apply-templates/>
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<xslo:apply-templates mode="index_subfields"/>
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<xslo:apply-templates mode="index_heading"/>
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<xslo:apply-templates mode="index_subject_thesaurus"/>
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</z:record>
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</xslo:template>
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<xsl:call-template name="handle-index-leader"/>
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<xsl:call-template name="handle-index-control-field"/>
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<xsl:call-template name="handle-index-subfields"/>
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<xsl:call-template name="handle-index-heading"/>
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<xsl:apply-templates/>
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</xslo:stylesheet>
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</xsl:template>
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<xsl:template match="kohaidx:index_subject_thesaurus">
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<xsl:variable name="tag"><xsl:value-of select="@tag"/></xsl:variable>
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<xsl:variable name="offset"><xsl:value-of select="@offset"/></xsl:variable>
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<xsl:variable name="length"><xsl:value-of select="@length"/></xsl:variable>
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<xsl:variable name="detail_tag"><xsl:value-of select="@detail_tag"/></xsl:variable>
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<xsl:variable name="detail_subfields"><xsl:value-of select="@detail_subfields"/></xsl:variable>
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<xsl:variable name="indexes">
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<xsl:call-template name="get-target-indexes"/>
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</xsl:variable>
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<xslo:template mode="index_subject_thesaurus">
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<xsl:attribute name="match">
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<xsl:text>marc:controlfield[@tag='</xsl:text>
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<xsl:value-of select="$tag"/>
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<xsl:text>']</xsl:text>
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</xsl:attribute>
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<xslo:variable name="thesaurus_code1">
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<xsl:attribute name="select">
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<xsl:text>substring(., </xsl:text>
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<xsl:value-of select="$offset + 1" />
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<xsl:text>, </xsl:text>
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<xsl:value-of select="$length" />
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<xsl:text>)</xsl:text>
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</xsl:attribute>
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</xslo:variable>
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<xsl:variable name="alt_select">
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<xsl:text>//marc:datafield[@tag='</xsl:text>
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<xsl:value-of select="$detail_tag"/>
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<xsl:text>']/marc:subfield[@code='</xsl:text>
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<xsl:value-of select="$detail_subfields"/>
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<xsl:text>']</xsl:text>
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</xsl:variable>
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<xslo:variable name="full_thesaurus_code">
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<xslo:choose>
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<xslo:when test="$thesaurus_code1 = 'a'"><xslo:text>lcsh</xslo:text></xslo:when>
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<xslo:when test="$thesaurus_code1 = 'b'"><xslo:text>lcac</xslo:text></xslo:when>
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<xslo:when test="$thesaurus_code1 = 'c'"><xslo:text>mesh</xslo:text></xslo:when>
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<xslo:when test="$thesaurus_code1 = 'd'"><xslo:text>nal</xslo:text></xslo:when>
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<xslo:when test="$thesaurus_code1 = 'k'"><xslo:text>cash</xslo:text></xslo:when>
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<xslo:when test="$thesaurus_code1 = 'n'"><xslo:text>notapplicable</xslo:text></xslo:when>
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<xslo:when test="$thesaurus_code1 = 'r'"><xslo:text>aat</xslo:text></xslo:when>
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<xslo:when test="$thesaurus_code1 = 's'"><xslo:text>sears</xslo:text></xslo:when>
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<xslo:when test="$thesaurus_code1 = 'v'"><xslo:text>rvm</xslo:text></xslo:when>
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<xslo:when test="$thesaurus_code1 = 'z'">
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<xslo:choose>
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<xslo:when>
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<xsl:attribute name="test"><xsl:value-of select="$alt_select"/></xsl:attribute>
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<xslo:value-of>
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<xsl:attribute name="select"><xsl:value-of select="$alt_select"/></xsl:attribute>
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</xslo:value-of>
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</xslo:when>
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<xslo:otherwise><xslo:text>notdefined</xslo:text></xslo:otherwise>
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</xslo:choose>
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</xslo:when>
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<xslo:otherwise><xslo:text>notdefined</xslo:text></xslo:otherwise>
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</xslo:choose>
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</xslo:variable>
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<z:index>
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<xsl:attribute name="name"><xsl:value-of select="normalize-space($indexes)"/></xsl:attribute>
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<xslo:value-of select="$full_thesaurus_code"/>
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</z:index>
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</xslo:template>
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</xsl:template>
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<xsl:template name="handle-index-leader">
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<xsl:if test="kohaidx:index_leader">
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<xslo:template match="marc:leader">
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<xsl:apply-templates select="kohaidx:index_leader" mode="secondary"/>
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</xslo:template>
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</xsl:if>
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</xsl:template>
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<xsl:template match="kohaidx:index_leader" mode="secondary">
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<xsl:variable name="offset"><xsl:value-of select="@offset"/></xsl:variable>
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<xsl:variable name="length"><xsl:value-of select="@length"/></xsl:variable>
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<xsl:variable name="indexes">
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<xsl:call-template name="get-target-indexes"/>
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</xsl:variable>
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<z:index>
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<xsl:attribute name="name"><xsl:value-of select="normalize-space($indexes)"/></xsl:attribute>
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<xslo:value-of>
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<xsl:attribute name="select">
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<xsl:text>substring(., </xsl:text>
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<xsl:value-of select="$offset + 1" />
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<xsl:text>, </xsl:text>
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<xsl:value-of select="$length" />
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<xsl:text>)</xsl:text>
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</xsl:attribute>
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</xslo:value-of>
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</z:index>
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</xsl:template>
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<xsl:template name="handle-index-control-field">
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<xsl:for-each select="//kohaidx:index_control_field[generate-id() = generate-id(key('index_control_field_tag', @tag)[1])]">
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<xslo:template>
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<xsl:attribute name="match">
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<xsl:text>marc:controlfield[@tag='</xsl:text>
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<xsl:value-of select="@tag"/>
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<xsl:text>']</xsl:text>
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</xsl:attribute>
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<xsl:for-each select="key('index_control_field_tag', @tag)">
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<xsl:call-template name="handle-one-index-control-field"/>
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</xsl:for-each>
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</xslo:template>
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</xsl:for-each>
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</xsl:template>
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<xsl:template name="handle-one-index-control-field">
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<xsl:variable name="offset"><xsl:value-of select="@offset"/></xsl:variable>
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<xsl:variable name="length"><xsl:value-of select="@length"/></xsl:variable>
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<xsl:variable name="indexes">
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<xsl:call-template name="get-target-indexes"/>
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</xsl:variable>
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<z:index>
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<xsl:attribute name="name"><xsl:value-of select="normalize-space($indexes)"/></xsl:attribute>
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<xslo:value-of>
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<xsl:attribute name="select">
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<xsl:choose>
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<xsl:when test="@length">
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<xsl:text>substring(., </xsl:text>
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<xsl:value-of select="$offset + 1" />
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<xsl:text>, </xsl:text>
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<xsl:value-of select="$length"/>
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<xsl:text>)</xsl:text>
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</xsl:when>
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<xsl:otherwise>
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<xsl:text>.</xsl:text>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:attribute>
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</xslo:value-of>
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</z:index>
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</xsl:template>
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<xsl:template name="handle-index-subfields">
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<xsl:for-each select="//kohaidx:index_subfields[generate-id() = generate-id(key('index_subfields_tag', @tag)[1])]">
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<xslo:template mode="index_subfields">
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<xsl:attribute name="match">
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<xsl:text>marc:datafield[@tag='</xsl:text>
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<xsl:value-of select="@tag"/>
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<xsl:text>']</xsl:text>
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</xsl:attribute>
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<xsl:for-each select="key('index_subfields_tag', @tag)">
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<xsl:call-template name="handle-one-index-subfields"/>
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</xsl:for-each>
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</xslo:template>
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</xsl:for-each>
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</xsl:template>
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<xsl:template name="handle-one-index-subfields">
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<xsl:variable name="indexes">
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<xsl:call-template name="get-target-indexes"/>
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</xsl:variable>
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<xslo:for-each select="marc:subfield">
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<xslo:if>
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<xsl:attribute name="test">
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<xsl:text>contains('</xsl:text>
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<xsl:value-of select="@subfields"/>
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<xsl:text>', @code)</xsl:text>
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</xsl:attribute>
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<z:index>
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<xsl:attribute name="name"><xsl:value-of select="normalize-space($indexes)"/></xsl:attribute>
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<xslo:value-of select="."/>
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</z:index>
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</xslo:if>
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</xslo:for-each>
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</xsl:template>
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<xsl:template name="handle-index-heading">
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<xsl:for-each select="//kohaidx:index_heading[generate-id() = generate-id(key('index_heading_tag', @tag)[1])]">
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<xslo:template mode="index_heading">
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<xsl:attribute name="match">
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<xsl:text>marc:datafield[@tag='</xsl:text>
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<xsl:value-of select="@tag"/>
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<xsl:text>']</xsl:text>
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</xsl:attribute>
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<xsl:for-each select="key('index_heading_tag', @tag)">
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<xsl:call-template name="handle-one-index-heading"/>
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</xsl:for-each>
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</xslo:template>
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</xsl:for-each>
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</xsl:template>
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<xsl:template name="handle-one-index-heading">
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<xsl:variable name="indexes">
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<xsl:call-template name="get-target-indexes"/>
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</xsl:variable>
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<z:index>
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<xsl:attribute name="name"><xsl:value-of select="normalize-space($indexes)"/></xsl:attribute>
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<xslo:variable name="raw_heading">
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<xslo:for-each select="marc:subfield">
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<xslo:if>
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<xsl:attribute name="test">
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<xsl:text>contains('</xsl:text>
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<xsl:value-of select="@subfields"/>
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<xsl:text>', @code)</xsl:text>
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</xsl:attribute>
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<xsl:attribute name="name"><xsl:value-of select="normalize-space($indexes)"/></xsl:attribute>
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<xslo:if test="position() > 1">
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<xslo:choose>
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<xslo:when>
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<xsl:attribute name="test">
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<xsl:text>contains('</xsl:text>
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<xsl:value-of select="@subdivisions"/>
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<xsl:text>', @code)</xsl:text>
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</xsl:attribute>
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<xslo:text>--</xslo:text>
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</xslo:when>
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<xslo:otherwise>
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<xslo:value-of select="substring(' ', 1, 1)"/> <!-- FIXME surely there's a better way to specify a space -->
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</xslo:otherwise>
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</xslo:choose>
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</xslo:if>
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<xslo:value-of select="."/>
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</xslo:if>
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</xslo:for-each>
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</xslo:variable>
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<xslo:value-of select="normalize-space($raw_heading)"/>
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</z:index>
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</xsl:template>
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<xsl:template name="get-target-indexes">
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<xsl:for-each select="kohaidx:target_index">
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<xsl:value-of select="." /><xsl:text> </xsl:text>
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</xsl:for-each>
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</xsl:template>
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</xsl:stylesheet>
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