我有一个使用外部文档的xsl。当使用外部文档时，xsl包含xsl:key元素，这不能正常工作。
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="html" encoding="utf-8"/>
<xsl:param name="People"></xsl:param>
<xsl:param name="Abstracts"></xsl:param>
<xsl:key name="uniqueAfflTags" match="AFFL" use="concat(../../../../@id,@number)"/>
<xsl:variable name="abstracts" select="document($Abstracts)//ABSTRACT"/>
<!--Root template -->
<xsl:template match="/">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/>
</head>
<body>
<xsl:apply-templates select="//PRESENTATIONS/PRESENTATION[@type!='placeholder']">
<xsl:sort select="AUTHORS/AUTHOR[1]/LNAME"/>
</xsl:apply-templates>
</body>
</html>
</xsl:template>
<xsl:template match="PRESENTATION">
<xsl:variable name="ctrlid" select="@control_id"/>
<xsl:text> </xsl:text>
<!-- Category -->
<xsl:if test="string-length($abstracts[@id=$ctrlid]/ABSTRACT_CATEGORY/CATEGORY_GROUP/CATEGORY) > 0">
<xsl:text> - </xsl:text>
<span class="Category">
<xsl:value-of select="$abstracts[@id=$ctrlid]/ABSTRACT_CATEGORY/CATEGORY_GROUP/CATEGORY"/>
</span>
</xsl:if>
<xsl:apply-templates select="descendant::AFFL">
<xsl:sort select="@number" data-type="number"/>
</xsl:apply-templates>
</xsl:template>
<xsl:template match="AFFL">
<xsl:if test="generate-id()=generate-id(key('uniqueAfflTags',concat(../../../../@id,@number))[1])">
(<xsl:value-of select="@number"/>)
<xsl:if test="string-length(DEPT) > 0">
<xsl:value-of select="DEPT"/>
</xsl:if>
<xsl:if test="string-length(INST) > 0">
<xsl:if test="string-length(DEPT) > 0">
<xsl:text>, </xsl:text>
</xsl:if>
<xsl:value-of select="INST"/>
</xsl:if>
<xsl:if test="string-length(CITY) > 0">
<xsl:if test="string-length(INST) > 0 or string-length(DEPT) > 0">
<xsl:text>, </xsl:text>
</xsl:if>
<xsl:value-of select="CITY"/>
</xsl:if>
<xsl:if test="string-length(STATE) > 0">
<xsl:if test="string-length(CITY) > 0 or string-length(INST) > 0 or string-length(DEPT) > 0">
<xsl:text>, </xsl:text>
</xsl:if>
<xsl:value-of select="STATE"/>
</xsl:if>
<xsl:if test="string-length(COUNTRY) > 0">
<xsl:if test="COUNTRY!='United States'">
<xsl:if test="string-length(STATE) > 0 or string-length(CITY) > 0 or string-length(INST) > 0 or string-length(DEPT) > 0">
<xsl:text>, </xsl:text>
</xsl:if>
<xsl:value-of select="COUNTRY"/>
</xsl:if>
</xsl:if>
</xsl:if>
</xsl:template>
<xsl:template match="text()">
</xsl:template>
</xsl:stylesheet>
对于当前的xsl, AFFL模板匹配中的if条件不满足。如果我删除这些行:
<xsl:variable name="ctrlid" select="@control_id"/>
<xsl:text> </xsl:text>
<!-- Category -->
<xsl:if test="string-length($abstracts[@id=$ctrlid]/ABSTRACT_CATEGORY/CATEGORY_GROUP/CATEGORY) > 0">
<xsl:text> - </xsl:text>
<span class="Category">
<xsl:value-of select="$abstracts[@id=$ctrlid]/ABSTRACT_CATEGORY/CATEGORY_GROUP/CATEGORY"/>
</span>
</xsl:if>
开始工作。问题看起来像不正确的上下文，但我无法正确设置上下文。非常感谢任何帮助。由于
Input xml -> primary xml (session)
<PRESENTATION id="1424043" sess_sort="10" control_id="1841983" type="abstract">
<FINAL_ID><![CDATA[]]></FINAL_ID>
<DURATION><![CDATA[20]]></DURATION>
<PRESENTATION_START_TIME>
<HOUR><![CDATA[04]]></HOUR>
<MINUTE><![CDATA[05]]></MINUTE>
<AM_PM><![CDATA[PM]]></AM_PM>
</PRESENTATION_START_TIME>
<PRESENTATION_END_TIME>
<HOUR><![CDATA[04]]></HOUR>
<MINUTE><![CDATA[25]]></MINUTE>
<AM_PM><![CDATA[PM]]></AM_PM>
</PRESENTATION_END_TIME>
<TITLE><![CDATA[Rift Structures in the Angola Margin: Block 0]]></TITLE>
<STATUS><![CDATA[Sessioned]]></STATUS>
<DECISION_STATUS><![CDATA[Accept]]></DECISION_STATUS>
<DESC><![CDATA[]]></DESC>
<USER_DEFINED_1><![CDATA[false]]></USER_DEFINED_1>
<AUTHORS>
<AUTHOR order="1" person_id="2720052" presenter="true">
<FNAME><![CDATA[Li-Fan]]></FNAME>
<MNAME><![CDATA[]]></MNAME>
<LNAME><![CDATA[Yue]]></LNAME>
<AFFILIATIONS>
<AFFL author_order="1" number="1">
<DEPT><![CDATA[]]></DEPT>
<INST><![CDATA[Chevron]]></INST>
<CITY><![CDATA[Houston]]></CITY>
<STATE><![CDATA[Texas]]></STATE>
<COUNTRY><![CDATA[United States]]></COUNTRY>
</AFFL>
</AFFILIATIONS>
</AUTHOR>
<AUTHOR order="2" person_id="2713558" presenter="false">
<FNAME><![CDATA[Chris]]></FNAME>
<MNAME><![CDATA[]]></MNAME>
<LNAME><![CDATA[Guzofski]]></LNAME>
<AFFILIATIONS>
<AFFL author_order="1" number="1">
<DEPT><![CDATA[]]></DEPT>
<INST><![CDATA[Chevron]]></INST>
<CITY><![CDATA[Houston]]></CITY>
<STATE><![CDATA[Texas]]></STATE>
<COUNTRY><![CDATA[United States]]></COUNTRY>
</AFFL>
</AFFILIATIONS>
</AUTHOR>
</AUTHORS>
<BODY>
<SECTION part_of_body="1">
<SECTION_NAME bold="true" italic="false" underline="false" name_appears="false"><![CDATA[Abstract Body]]></SECTION_NAME>
<TEXT><![CDATA[
Angola Block 0 has long been a prolific asset for Angola and Chevron ever since the Cabinda Gulf Oil Company drilled the first well in the late
]]></TEXT>
</SECTION>
</BODY>
</PRESENTATION>
第二个xml(抽象xml)——
<ABSTRACT id="1785505">
<STATUS><![CDATA[Sessioned]]></STATUS>
<DECISION_STATUS><![CDATA[Accept]]></DECISION_STATUS>
<TITLE><![CDATA[Fault controlled extension regime– a case of the Albertine Graben - East African Rift System, Uganda]]></TITLE>
<PRESENTATION_TYPE><![CDATA[Oral Only]]></PRESENTATION_TYPE>
<ABSTRACT_CATEGORY>
<CATEGORY_GROUP>
<CATEGORY category_id="136962"><![CDATA[Theme 8: Structure, Tectonics, and Geomechanics]]></CATEGORY>
<SUB_CATEGORY sub_category_id="137018"><![CDATA[3. Structure and Geodynamics of Extensional Margins and Impact on the Evolution of Petroleum Systems and Reservoir Productivity]]></SUB_CATEGORY>
</CATEGORY_GROUP>
</ABSTRACT_CATEGORY>
<AUTHORS>
<AUTHOR order="1" person_id="2646796" presenter="true">
<SAL><![CDATA[Mr.]]></SAL>
<FNAME><![CDATA[Dozith]]></FNAME>
<MNAME><![CDATA[]]></MNAME>
<LNAME><![CDATA[Abeinomugisha]]></LNAME>
<DEGREE><![CDATA[Msc Petroleum Geoscience]]></DEGREE>
<EMAIL><![CDATA[d.abeinomugisha@petroleum.go.ug]]></EMAIL>
<ADDRESS_1><![CDATA[Plot 21-29, End of Johnstone road, Entebbe]]></ADDRESS_1>
<ADDRESS_2><![CDATA[]]></ADDRESS_2>
<CITY><![CDATA[Entebbe]]></CITY>
<STATE><![CDATA[]]></STATE>
<POSTAL_CODE><![CDATA[9]]></POSTAL_CODE>
<COUNTRY><![CDATA[Uganda]]></COUNTRY>
<PHONE><![CDATA[+256414320714]]></PHONE>
<FAX><![CDATA[+256414320437]]></FAX>
<AFFILIATIONS>
<AFFL author_order="1" number="1">
<DEPT><![CDATA[Geology]]></DEPT>
<INST><![CDATA[Petroleum Exploration and Production Department]]></INST>
<CITY><![CDATA[Entebbe]]></CITY>
<STATE><![CDATA[]]></STATE>
<COUNTRY><![CDATA[Uganda]]></COUNTRY>
</AFFL>
</AFFILIATIONS>
</AUTHOR>
</AUTHORS>
<BODY>
<SECTION part_of_body="1">
<SECTION_NAME bold="false" italic="false" underline="false" name_appears="false"><![CDATA[Abstract Body]]></SECTION_NAME>
<TEXT><![CDATA[The Albertine graben forms the northernmost termination of the western arm of the East African Rift System. Rifting was initiated.
]]></TEXT>
</SECTION>
</BODY>
</ABSTRACT>
如果这真的是一个上下文问题，那么我应该如何选择基本文档的上下文
键索引是为每个文档构建的，键函数作用于当前上下文节点的文档，因此通常对于多个文档，您需要确保使用
更改上下文。<xsl:variable name="some-key-value" select="foo"/>
<xsl:for-each select="$otherDoc">
<xsl:apply-templates select="key('key-name', $some-key-value)"/>
</xsl:for-each>
可以缩短为
<xsl:apply-templates select="key('key-name', foo, $otherDoc)"/>
如果您需要更具体的帮助，请向我们展示您的输入文档的结构。