xml – 如何在XSLT中测试空格分隔值的所有排列？

这在XSLT 1.0中有点冗长,但仍然：

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>

<xsl:param name="delimiter" select="' '"/>

<xsl:variable name="source" select="'A B C'"/>
<xsl:variable name="target" select="'B A C'"/>

<xsl:variable name="every-source-in-target">
    <xsl:call-template name="every-source-in-target">
        <xsl:with-param name="source" select="$source"/>
        <xsl:with-param name="target" select="$target"/>
    </xsl:call-template>        
</xsl:variable>

<xsl:variable name="count-source" select="string-length(translate($source,translate($source,$delimiter,''),''))" />
<xsl:variable name="count-target" select="string-length(translate($target,translate($target,''))" /> 

<xsl:template match="/">
    <result>
        <xsl:if test="$every-source-in-target='true' and $count-source=$count-target ">MATCH</xsl:if>
    </result>
</xsl:template>

<xsl:template name="every-source-in-target">
    <xsl:param name="source"/>
    <xsl:param name="target"/>
    <xsl:param name="delimiter" select="' '"/>
    <xsl:variable name="token" select="substring-before(concat($source,$delimiter),$delimiter)" />
    <xsl:choose>
        <xsl:when test="not(contains(concat($delimiter,$target,concat($delimiter,$token,$delimiter)))">
            <xsl:value-of select="false()"/>
        </xsl:when>
        <xsl:when test="contains($source,$delimiter)">
            <!-- recursive call -->
            <xsl:call-template name="every-source-in-target">
                <xsl:with-param name="source" select="substring-after($source,$delimiter)"/>
                <xsl:with-param name="target" select="$target"/>
            </xsl:call-template>
        </xsl:when>
        <xsl:otherwise>
            <xsl:value-of select="true()"/>
        </xsl:otherwise>
   </xsl:choose>
</xsl:template>

</xsl:stylesheet>

请注意,这里有一些假设：例如,“A B B C”和“B A A C”将返回匹配.如果那是不可接受的,那么下一个最好的东西,恕我直言,就是在比较集合之前对值进行排序：

XSLT 1.0

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:exsl="http://exslt.org/common"
extension-element-prefixes="exsl">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>

<xsl:param name="delimiter" select="' '"/>

<xsl:variable name="source" select="'A B C'"/>
<xsl:variable name="target" select="'B A C'"/>

<xsl:variable name="sorted-source">
    <xsl:call-template name="sort-list">
        <xsl:with-param name="list" select="$source"/>
    </xsl:call-template>        
</xsl:variable>

<xsl:variable name="sorted-target">
    <xsl:call-template name="sort-list">
        <xsl:with-param name="list" select="$target"/>
    </xsl:call-template>        
</xsl:variable>

<xsl:template match="/">
    <result>
        <xsl:if test="$sorted-source=$sorted-target">MATCH</xsl:if>
    </result>
</xsl:template>

<xsl:template name="sort-list">
    <xsl:param name="list"/>
    <!-- tokenize the list -->
    <xsl:variable name="tokens">
        <xsl:call-template name="tokenize">
            <xsl:with-param name="text" select="$list"/>
        </xsl:call-template>        
    </xsl:variable>
    <!-- re-assemble the list in alphabetic order -->
    <xsl:for-each select="exsl:node-set($tokens)/token">
        <xsl:sort select="." data-type="text" order="ascending"/>
        <xsl:value-of select="."/>
        <xsl:if test="position()!=last">
            <xsl:value-of select="$delimiter"/>
        </xsl:if>
    </xsl:for-each>
</xsl:template>

<xsl:template name="tokenize">
    <xsl:param name="text"/>
    <xsl:param name="delimiter" select="' '"/>
        <xsl:variable name="token" select="substring-before(concat($text,$delimiter)" />
        <xsl:if test="$token">
            <token>
                <xsl:value-of select="$token"/>
            </token>
        </xsl:if>
        <xsl:if test="contains($text,$delimiter)">
            <!-- recursive call -->
            <xsl:call-template name="tokenize">
                <xsl:with-param name="text" select="substring-after($text,$delimiter)"/>
            </xsl:call-template>
        </xsl:if>
</xsl:template>

</xsl:stylesheet>