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abacf2d1a4
This commit adds res_geolocation which creates the core capabilities to manipulate Geolocation information on SIP INVITEs. An upcoming commit will add res_pjsip_geolocation which will allow the capabilities to be used with the pjsip channel driver. This commit message is intentionally short because this isn't a simple capability. See the documentation at https://wiki.asterisk.org/wiki/display/AST/Geolocation for more information. THE CAPABILITIES IMPLEMENTED HERE MAY CHANGE BASED ON USER FEEDBACK! ASTERISK-30127 Change-Id: Ibfde963121b1ecf57fd98ee7060c4f0808416303
213 lines
7.3 KiB
HTML
213 lines
7.3 KiB
HTML
<?xml version="1.0"?>
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<xsl:stylesheet version="1.0"
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xmlns:ca="urn:ietf:params:xml:ns:pidf:geopriv10:civicAddr"
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xmlns:def="urn:ietf:params:xml:ns:pidf"
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xmlns:dm="urn:ietf:params:xml:ns:pidf:data-model"
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xmlns:fn="http://www.w3.org/2005/xpath-functions"
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xmlns:gbp="urn:ietf:params:xml:ns:pidf:geopriv10:basicPolicy"
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xmlns:gml="http://www.opengis.net/gml"
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xmlns:gp="urn:ietf:params:xml:ns:pidf:geopriv10"
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xmlns:gs="http://www.opengis.net/pidflo/1.0"
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xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
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<!--
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The whole purpose of this stylesheet is to convert a PIDF-LO document into a simple,
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common XML document that is easily parsable by geoloc_eprofile into an eprofile.
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For example:
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<presence>
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<device>
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<location-info format="GML">shape="Point", crs="2d", pos="38.456 -105.678"</location-info>
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<usage-rules>retransmission-allowed=no</usage-rules>
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<method>GPS</method>
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</device>
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</presence>
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WARNING: Don't mess with this stylesheet before brushing up your
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XPath and XSLT expertise.
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-->
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<!--
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All of the namespaces that could be in the incoming PIDF-LO document
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have to be declared above. All matching is done based on the URI, not
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the prefix so we can use whatever prefixes we want. For instance,
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even if "urn:ietf:params:xml:ns:pidf:data-model" were declared with
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the "pdm" prefix in the incoming document and with "dm" here,
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"dm:device" would match "pdm:device" in the document.
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-->
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<xsl:output method="xml" indent="yes"/>
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<xsl:strip-space elements="*"/>
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<xsl:param name="path"/>
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<!--
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Even though the "presence", "tuple", and "status" elements won't have namespaces in the
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incoming PIDF document, we have to use the pseudo-namespace "def" here because of namespace
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processing quirks in libxml2 and libxslt.
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We don't use namespace prefixes in the output document at all.
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-->
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<xsl:template match="/def:presence">
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<xsl:element name="presence">
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<xsl:attribute name="entity"><xsl:value-of select="@entity"/></xsl:attribute>
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<xsl:apply-templates select="$path"/>
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</xsl:element>
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</xsl:template>
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<xsl:template match="dm:device">
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<xsl:element name="device">
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<xsl:attribute name="id"><xsl:value-of select="@id"/></xsl:attribute>
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<xsl:apply-templates select=".//gp:location-info"/>
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<xsl:apply-templates select=".//gp:usage-rules"/>
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<xsl:apply-templates select=".//gp:method"/>
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<xsl:apply-templates select=".//gp:note-well"/>
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<xsl:if test="./dm:timestamp">
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<timestamp>
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<xsl:value-of select="./dm:timestamp"/>
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</timestamp>
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</xsl:if>
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<xsl:if test="./dm:deviceID">
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<deviceID>
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<xsl:value-of select="./dm:deviceID"/>
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</deviceID>
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</xsl:if>
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</xsl:element>
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</xsl:template>
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<xsl:template match="def:tuple">
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<xsl:element name="tuple">
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<xsl:attribute name="id"><xsl:value-of select="@id"/></xsl:attribute>
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<xsl:apply-templates select=".//gp:location-info"/>
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<xsl:apply-templates select=".//gp:usage-rules"/>
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<xsl:apply-templates select=".//gp:method"/>
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<xsl:apply-templates select=".//gp:note-well"/>
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<xsl:if test="./timestamp">
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<timestamp>
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<xsl:value-of select="./timestamp"/>
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</timestamp>
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</xsl:if>
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</xsl:element>
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</xsl:template>
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<xsl:template match="dm:person">
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<xsl:element name="person">
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<xsl:attribute name="id"><xsl:value-of select="@id"/></xsl:attribute>
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<xsl:apply-templates select=".//gp:location-info"/>
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<xsl:apply-templates select=".//gp:usage-rules"/>
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<xsl:apply-templates select=".//gp:method"/>
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<xsl:apply-templates select=".//gp:note-well"/>
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<xsl:if test="./dm:timestamp">
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<timestamp>
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<xsl:value-of select="./dm:timestamp"/>
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</timestamp>
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</xsl:if>
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</xsl:element>
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</xsl:template>
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<xsl:template match="gp:location-info/gml:*">
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<xsl:element name="location-info">
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<xsl:attribute name="format">gml</xsl:attribute>
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<xsl:call-template name="shape" />
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</xsl:element>
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</xsl:template>
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<xsl:template match="gp:location-info/gs:*">
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<xsl:element name="location-info">
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<xsl:attribute name="format">gml</xsl:attribute>
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<xsl:call-template name="shape" />
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</xsl:element>
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</xsl:template>
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<xsl:template match="gp:location-info/ca:civicAddress">
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<xsl:element name="location-info">
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<xsl:attribute name="format">civicAddress</xsl:attribute>
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<xsl:call-template name="civicAddress" />
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</xsl:element>
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</xsl:template>
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<!--
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All of the "following-sibling" things just stick a comma after the value if there's another
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element after it. The result should be...
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name1="value1", name2="value2"
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-->
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<xsl:template name="name-value">
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<xsl:element name="{local-name(.)}">
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<xsl:value-of select="normalize-space(.)"/>
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</xsl:element>
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</xsl:template>
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<xsl:template name="length"><xsl:call-template name="name-value" /></xsl:template>
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<xsl:template name="angle">
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<xsl:element name="{local-name(.)}">
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<xsl:choose>
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<xsl:when test="@uom = 'urn:ogc:def:uom:EPSG::9102'">
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<xsl:attribute name="uom">radians</xsl:attribute></xsl:when>
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<xsl:otherwise>
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<xsl:attribute name="uom">degrees</xsl:attribute></xsl:otherwise>
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</xsl:choose>
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<xsl:value-of select="normalize-space(.)"/>
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</xsl:element>
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</xsl:template>
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<xsl:template match="gs:orientation"><xsl:call-template name="angle" /></xsl:template>
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<xsl:template match="gs:radius"><xsl:call-template name="length" /></xsl:template>
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<xsl:template match="gs:height"><xsl:call-template name="length" /></xsl:template>
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<xsl:template match="gs:semiMajorAxis"><xsl:call-template name="length" /></xsl:template>
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<xsl:template match="gs:semiMinorAxis"><xsl:call-template name="length" /></xsl:template>
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<xsl:template match="gs:verticalAxis"><xsl:call-template name="length" /></xsl:template>
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<xsl:template match="gs:innerRadius"><xsl:call-template name="length" /></xsl:template>
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<xsl:template match="gs:outerRadius"><xsl:call-template name="length" /></xsl:template>
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<xsl:template match="gs:startAngle"><xsl:call-template name="angle" /></xsl:template>
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<xsl:template match="gs:openingAngle"><xsl:call-template name="angle" /></xsl:template>
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<xsl:template match="gml:pos"><xsl:call-template name="name-value" /></xsl:template>
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<xsl:template match="gml:posList"><xsl:call-template name="name-value" /></xsl:template>
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<xsl:template name="shape">
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<xsl:element name="{local-name(.)}">
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<xsl:choose>
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<xsl:when test="@srsName = 'urn:ogc:def:crs:EPSG::4326'">
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<xsl:attribute name="srsName">2d</xsl:attribute>
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</xsl:when>
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<xsl:when test="@srsName = 'urn:ogc:def:crs:EPSG::4979'">
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<xsl:attribute name="srsName">3d</xsl:attribute>
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</xsl:when>
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<xsl:otherwise>
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<xsl:attribute name="srsName">unknown</xsl:attribute>
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</xsl:otherwise>
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</xsl:choose>
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<xsl:apply-templates />
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</xsl:element>
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</xsl:template>
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<xsl:template match="ca:civicAddress/*"><xsl:call-template name="name-value" /></xsl:template>
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<xsl:template name="civicAddress">
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<xsl:element name="{local-name(.)}">
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<xsl:attribute name="lang"><xsl:value-of select="@xml:lang"/></xsl:attribute>
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<xsl:apply-templates select="./*"/>
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</xsl:element>
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</xsl:template>
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<xsl:template match="gp:usage-rules/*">
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<xsl:call-template name="name-value" />
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</xsl:template>
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<xsl:template match="gp:usage-rules">
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<xsl:element name="usage-rules">
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<xsl:apply-templates />
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</xsl:element>
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</xsl:template>
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<xsl:template match="gp:method">
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<xsl:element name="method">
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<xsl:value-of select="normalize-space(.)" />
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</xsl:element>
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</xsl:template>
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</xsl:stylesheet>
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