基于属性的子字符串使用 XSL v.1.0 合并节点

Merge nodes with XSL v.1.0 based on a substring of an Attribute

我有一个 XML 文件是用 heat.exe 从 wix-toolset 生成的。它将每个 <File> 对象包装在 <Component> 中。 我必须使用 XSLT v1.0 对此进行修改,以便 @Source 包含相同文件名(无扩展名)的所有 <File> 都应提取到一个 <Component>。通常,@Source 仅以“.dll”或“.config”结尾。

另外 <File> 结尾为:

这里有一个示例XML I 需要转换:

<?xml version="1.0" encoding="utf-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
<Fragment>
    <DirectoryRef Id="GAC35">
        <Component Id="cmp5BC59A7DCA65D1B974894AAA758DB693" Guid="{1A2AC82E-7AD9-4CB6-BF42-4D31FAD7786E}">
            <File Id="filE7FFE881A5ECF045432F46FBA78AEDD4" KeyPath="yes" Source="$(var.HarvestLoggingGac35Policy)\Policy.1.0.Logging.config" />
        </Component>
        <Component Id="cmp7F80B805A2BDCF92241FB8019B91FF1C" Guid="{0F88D7E9-355A-40C1-AC8C-29BBB27690FB}">
            <File Id="filB35F1D68CCC038864F21E76D8A9F5977" KeyPath="yes" Source="$(var.HarvestLoggingGac35Policy)\Policy.1.0.Logging.dll" />
        </Component>
        <Component Id="test1" Guid="{1A2AC82E-7AD9-4CB6-BF42-4D31FAD7786E}">
            <File Id="filE7FFE881A5ECF045432F46FBA78AEDD4" KeyPath="yes" Source="$(var.HarvestLoggingGac35Policy)\Policy.2.0.Logging.config" />
        </Component>
        <Component Id="test12" Guid="{0F88D7E9-355A-40C1-AC8C-29BBB27690FB}">
            <File Id="filB35F1D68CCC038864F21E76D8A9F5977" KeyPath="yes" Source="$(var.HarvestLoggingGac35Policy)\Policy.2.0.Logging.dll" />
        </Component>
    </DirectoryRef>
</Fragment>
<Fragment>
    <ComponentGroup Id="HeatGenerated_Gac35Policies">
        <ComponentRef Id="cmp5BC59A7DCA65D1B974894AAA758DB693" />
        <ComponentRef Id="cmp7F80B805A2BDCF92241FB8019B91FF1C" />
        <ComponentRef Id="test1" />
        <ComponentRef Id="test2" />
    </ComponentGroup>
</Fragment>
</Wix>

那么这应该是 XSL v1 的预期输出:

<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
<Fragment>
  <DirectoryRef Id="GAC35">
     <Component Id="cmp5BC59A7DCA65D1B974894AAA758DB693"
                Guid="{1A2AC82E-7AD9-4CB6-BF42-4D31FAD7786E}">
        <File Id="filE7FFE881A5ECF045432F46FBA78AEDD4"
              KeyPath="no"
              Source="$(var.HarvestLoggingGac35Policy)\Policy.1.0.Logging.config"/>
        <File Id="filB35F1D68CCC038864F21E76D8A9F5977"
              KeyPath="yes"
              Source="$(var.HarvestLoggingGac35Policy)\Policy.1.0.Logging.dll"
              Assembly=".net"/>
     </Component>
     <Component Id="test1"
                Guid="guid1">
        <File Id="filE7FFE881A5ECF045432F46FBA78AEDD4"
              KeyPath="no"
              Source="$(var.HarvestLoggingGac35Policy)\Policy.2.0.Logging.config"/>
        <File Id="filB35F1D68CCC038864F21E76D8A9F5977"
              KeyPath="yes"
              Source="$(var.HarvestLoggingGac35Policy)\Policy.2.0.Logging.dll"
              Assembly=".net"/>
     </Component>
  </DirectoryRef>
</Fragment>
<Fragment>
  <ComponentGroup Id="HeatGenerated_Gac35Policies">
     <ComponentRef Id="cmp5BC59A7DCA65D1B974894AAA758DB693"/>
     <ComponentRef Id="test1"/>
  </ComponentGroup>
</Fragment>
</Wix>

编辑:这是我自己的最后一个"solution"(不完整),直到我使用@michael.hor257k

的答案
<?xml version="1.0" ?>
 <xsl:stylesheet version="1.0"
            xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
            xmlns:wix="http://schemas.microsoft.com/wix/2006/wi"
            xmlns="http://schemas.microsoft.com/wix/2006/wi">

<!-- Copy all attributes and elements to the output. -->
<xsl:output method="xml"
          indent="yes"
          omit-xml-declaration="yes"/>
<xsl:strip-space elements="*"/>

<xsl:template match="@* | node()">
<xsl:copy>
  <xsl:apply-templates select="@* | node()"/>
</xsl:copy>
</xsl:template>


<xsl:template match="wix:Component">

<xsl:variable name="fileExtension">
  <xsl:choose>
    <xsl:when test="contains(wix:File/@Source, '.config')">
      <xsl:value-of select="'.config'"/>
    </xsl:when>
    <xsl:when test="contains(wix:File/@Source, '.dll')">
      <xsl:value-of select="'.dll'"/>
    </xsl:when>
  </xsl:choose>
</xsl:variable>

<xsl:variable name="precedingFileExtension">
  <xsl:choose>
    <xsl:when test="contains(preceding-sibling::wix:Component/wix:File/@Source, '.config')">
      <xsl:value-of select="'.config'"/>
    </xsl:when>
    <xsl:when test="contains(preceding-sibling::wix:Component/wix:File/@Source, '.dll')">
      <xsl:value-of select="'.dll'"/>
    </xsl:when>
  </xsl:choose>
</xsl:variable>

<xsl:apply-templates select="wix:File[(substring-before(substring-after(@Source,'\'), $fileExtension) = substring-before(substring-after(preceding::wix:Component/wix:File/@Source,'\'), $precedingFileExtension))]" mode="files"/>
</xsl:template>


<xsl:template match="wix:File" mode="files">

<xsl:variable name="fileExtension">
  <xsl:choose>
    <xsl:when test="contains(@Source, '.config')">
      <xsl:value-of select="'.config'"/>
    </xsl:when>
    <xsl:when test="contains(@Source, '.dll')">
      <xsl:value-of select="'.dll'"/>
    </xsl:when>
  </xsl:choose>
</xsl:variable>

<xsl:variable name="otherFileExtension">
  <xsl:choose>
    <xsl:when test="contains(@Source, '.config')">
      <xsl:value-of select="'.dll'"/>
    </xsl:when>
    <xsl:when test="contains(@Source, '.dll')">
      <xsl:value-of select="'.config'"/>
    </xsl:when>
  </xsl:choose>
</xsl:variable>

<Component>
  <xsl:copy-of select="parent::wix:Component/@*" />
  <xsl:copy>
    <xsl:copy-of select="@*" />
  </xsl:copy>
  <xsl:variable name="source" select="substring-before(substring-after(@Source,'\'), $fileExtension)"/>

  <xsl:apply-templates select="//wix:File[substring-before(substring-after(@Source,'\'), $otherFileExtension)=$source]" />
</Component>
</xsl:template>



<xsl:key name="policy-config-file"
         match="wix:File[contains(@Source, '.config')]"
         use="@Id" />

<xsl:template match="wix:File[key('policy-config-file', @Id)]" >
  <xsl:element name="File">
    <xsl:apply-templates select="@*" />
    <xsl:attribute name="KeyPath">
      <xsl:value-of select="'no'"/>
    </xsl:attribute>
  </xsl:element>
</xsl:template>

</xsl:stylesheet>

您不能根据节点没有的东西对节点进行分组。如果您想按不带扩展名的文件名对组件进行分组,则必须首先向每个组件添加这样的值 - 作为元素或属性。这是因为删除扩展名在 XSLT 1.0 中并非易事,并且不能通过单个 XPath 表达式来完成。

完成后,您可以继续并将 Muenchian 分组应用于中间结果:

XSLT 1.0

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:wix="http://schemas.microsoft.com/wix/2006/wi"
xmlns:exsl="http://exslt.org/common"
extension-element-prefixes="exsl">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:strip-space elements="*"/>

<xsl:key name="k" match="wix:Component" use="key"/>

<!-- identity transform -->
<xsl:template match="@*|node()">
    <xsl:copy>
        <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
</xsl:template>

<xsl:template match="wix:DirectoryRef">
    <!-- first pass -->
    <xsl:variable name="components">
        <xsl:for-each select="wix:Component">
            <xsl:copy>
                <xsl:apply-templates select="@* | *"/>
                <key>
                    <xsl:call-template name="remove-last-token">
                        <xsl:with-param name="text" select="wix:File/@Source"/>
                        <xsl:with-param name="delimiter" select="'.'"/>
                    </xsl:call-template>
                </key>
            </xsl:copy>
        </xsl:for-each>
    </xsl:variable>
    <!-- output -->
    <xsl:copy>
        <xsl:copy-of select="@*"/>
        <xsl:for-each select="exsl:node-set($components)/wix:Component[count(. | key('k', key)[1]) = 1]">
            <xsl:copy>
                <xsl:copy-of select="@*"/>
                <xsl:copy-of select="key('k', key)/wix:File"/>
            </xsl:copy>
        </xsl:for-each>
    </xsl:copy>
</xsl:template>

<xsl:template name="remove-last-token">
    <xsl:param name="text"/>
    <xsl:param name="delimiter"/>
    <xsl:value-of select="substring-before($text, $delimiter)"/>
    <xsl:if test="contains(substring-after($text, $delimiter), $delimiter)">
        <xsl:value-of select="$delimiter"/>
        <xsl:call-template name="remove-last-token">
            <xsl:with-param name="text" select="substring-after($text, $delimiter)"/>
            <xsl:with-param name="delimiter" select="$delimiter"/>
        </xsl:call-template>
    </xsl:if>
</xsl:template>

</xsl:stylesheet>

演示:http://xsltransform.net/93dEHG9


附录:

如果您可以安全地假设扩展名总是 .dll.config,那么您可以将其简化为:

XSLT 1.0

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:wix="http://schemas.microsoft.com/wix/2006/wi">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:strip-space elements="*"/>

<xsl:key name="k" match="wix:Component" use="substring-before(concat(substring-before(concat(wix:File/@Source, '.dll'), '.dll'), '.config'), '.config')"/>

<!-- identity transform -->
<xsl:template match="@*|node()">
    <xsl:copy>
        <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
</xsl:template>

<xsl:template match="wix:DirectoryRef">
    <xsl:copy>
        <xsl:copy-of select="@*"/>
        <xsl:for-each select="wix:Component[count(. | key('k', substring-before(concat(substring-before(concat(wix:File/@Source, '.dll'), '.dll'), '.config'), '.config'))[1]) = 1]">
            <xsl:copy>
                <xsl:copy-of select="@*"/>
                <xsl:copy-of select="key('k', substring-before(concat(substring-before(concat(wix:File/@Source, '.dll'), '.dll'), '.config'), '.config'))/wix:File"/>
            </xsl:copy>
        </xsl:for-each>
    </xsl:copy>
</xsl:template>

</xsl:stylesheet>