XSLT1.0中的增量计数器
这是输入XML:XSLT1.0中的增量计数器,xslt,Xslt,这是输入XML: <Move-Afile> <Afile> <Item> <PackNumber>1234</PackNumber> </Item> <Item> <PackNumber>567</PackNumber> </Item> <Item> <PackNumber>
<Move-Afile>
<Afile>
<Item>
<PackNumber>1234</PackNumber>
</Item>
<Item>
<PackNumber>567</PackNumber>
</Item>
<Item>
<PackNumber>567</PackNumber>
</Item>
<Item>
<PackNumber>126</PackNumber>
</Item>
<Item>
<PackNumber>876</PackNumber>
</Item>
</Afile>
</Move-Afile>
这是XML输出:
<A>
<target>
<Item>
<counter>1</counter><!-- if previous <PackNumber> is not equal to current <PackNumber> increment the count-->
<PNumber>1234</PNumber>
</Item>
<Item>
<counter>2</counter><!-- if previous <PackNumber> is not equal to current <PackNumber> increment the count-->
<PNumber>567</PNumber>
</Item>
<Item><!-- if previous <PackNumber> is equal to current <PackNumber> ignore the count-->no need to increment
<PNumber>567</PNumber>
</Item>
<Item>
<counter>3</counter><!-- if previous <PackNumber> is not equal to current <PackNumber> increment the count-->
<PNumber>126</PNumber>
</Item>
<Item><!-- if previous <PackNumber> is equal to current <PackNumber> ignore the count-->no need to increment
<PNumber>126</PNumber>
</Item>
</target>
</A>
1.
1234
2.
567
不需要增加
567
3.
126
不需要增加
126
XML输出2:
<?xml version="1.0"?>
<A>
<target>
<counter>1</counter>
<PNumber>1234</PNumber>
<counter>2</counter>
<PNumber>567</PNumber>
<!-- IF PNumber is equal we have to ignore the Total loop -->
<counter>3</counter>
<PNumber>126</PNumber>
<counter>4</counter>
<PNumber>876</PNumber>
</target>
</A>
1.
1234
2.
567
3.
126
4.
876
试试这个:
根据更改后的问题更新:在此处获取计数(在每个循环内作为变量)
试试这个:
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output indent="yes"/>
<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="text()" />
<xsl:template match="PackNumber" mode="count">
<xsl:value-of select="count(preceding::PackNumber
[not(preceding::PackNumber= .)and not( . = current()/. ) ])+1"/>
</xsl:template>
<xsl:template match="/">
<A>
<target>
<xsl:for-each select="//Item/PackNumber">
<xsl:variable name="count">
<xsl:apply-templates select="." mode="count"/>
</xsl:variable>
<counter>
<xsl:value-of select="$count"/>
</counter>
<PNumber>
<xsl:value-of select="."/>
</PNumber>
</xsl:for-each>
</target>
</A>
</xsl:template>
</xsl:stylesheet>
更新输出:
<?xml version="1.0"?>
<A>
<target>
<counter>1</counter>
<PNumber>1234</PNumber>
<counter>2</counter>
<PNumber>567</PNumber>
<counter>2</counter>
<PNumber>567</PNumber>
<counter>3</counter>
<PNumber>126</PNumber>
<counter>4</counter>
<PNumber>876</PNumber>
</target>
</A>
1.
1234
2.
567
2.
567
3.
126
4.
876
如果您需要的结果是在第二个XML示例中显示的结果,那么这个样式表就是您所需要的全部
它所做的只是从那些以前没有匹配的PackNumber
元素中复制PackNumber
计数的计算方法是,比前面没有匹配前置项的项
元素的数量多出一个
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:strip-space elements="*"/>
<xsl:output method="xml" indent="yes" encoding="UTF-8" omit-xml-declaration="yes"/>
<xsl:template match="/">
<A>
<target>
<xsl:apply-templates select="*"/>
</target>
</A>
</xsl:template>
<xsl:template match="Item">
<xsl:if test="not(PackNumber = preceding-sibling::Item/PackNumber)">
<counter>
<xsl:value-of select="1+count(preceding-sibling::Item[not(PackNumber = preceding-sibling::Item/PackNumber)])"/>
</counter>
<xsl:copy-of select="PackNumber"/>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
输出
<A>
<target>
<counter>1</counter>
<PackNumber>1234</PackNumber>
<counter>2</counter>
<PackNumber>567</PackNumber>
<counter>3</counter>
<PackNumber>126</PackNumber>
<counter>4</counter>
<PackNumber>876</PackNumber>
</target>
</A>
1.
1234
2.
567
3.
126
4.
876
这里有一个简短而高效的解决方案,使用:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:key name="kPackNByVal" match="PackNumber" use="."/>
<xsl:template match="Afile">
<A>
<target>
<xsl:apply-templates select=
"*/*[generate-id() = generate-id(key('kPackNByVal',.)[1])]"/>
</target>
</A>
</xsl:template>
<xsl:template match="PackNumber">
<counter><xsl:value-of select="position()"/></counter>
<PNumber><xsl:value-of select="."/></PNumber>
</xsl:template>
</xsl:stylesheet>
<Move-Afile>
<Afile>
<Item>
<PackNumber>1234</PackNumber>
</Item>
<Item>
<PackNumber>567</PackNumber>
</Item>
<Item>
<PackNumber>567</PackNumber>
</Item>
<Item>
<PackNumber>126</PackNumber>
</Item>
<Item>
<PackNumber>876</PackNumber>
</Item>
</Afile>
</Move-Afile>
<A>
<target>
<counter>1</counter>
<PNumber>1234</PNumber>
<counter>2</counter>
<PNumber>567</PNumber>
<counter>3</counter>
<PNumber>126</PNumber>
<counter>4</counter>
<PNumber>876</PNumber>
</target>
</A>
在提供的XML文档上应用此转换时:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:key name="kPackNByVal" match="PackNumber" use="."/>
<xsl:template match="Afile">
<A>
<target>
<xsl:apply-templates select=
"*/*[generate-id() = generate-id(key('kPackNByVal',.)[1])]"/>
</target>
</A>
</xsl:template>
<xsl:template match="PackNumber">
<counter><xsl:value-of select="position()"/></counter>
<PNumber><xsl:value-of select="."/></PNumber>
</xsl:template>
</xsl:stylesheet>
<Move-Afile>
<Afile>
<Item>
<PackNumber>1234</PackNumber>
</Item>
<Item>
<PackNumber>567</PackNumber>
</Item>
<Item>
<PackNumber>567</PackNumber>
</Item>
<Item>
<PackNumber>126</PackNumber>
</Item>
<Item>
<PackNumber>876</PackNumber>
</Item>
</Afile>
</Move-Afile>
<A>
<target>
<counter>1</counter>
<PNumber>1234</PNumber>
<counter>2</counter>
<PNumber>567</PNumber>
<counter>3</counter>
<PNumber>126</PNumber>
<counter>4</counter>
<PNumber>876</PNumber>
</target>
</A>
1234
567
567
126
876
生成所需的正确结果:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:key name="kPackNByVal" match="PackNumber" use="."/>
<xsl:template match="Afile">
<A>
<target>
<xsl:apply-templates select=
"*/*[generate-id() = generate-id(key('kPackNByVal',.)[1])]"/>
</target>
</A>
</xsl:template>
<xsl:template match="PackNumber">
<counter><xsl:value-of select="position()"/></counter>
<PNumber><xsl:value-of select="."/></PNumber>
</xsl:template>
</xsl:stylesheet>
<Move-Afile>
<Afile>
<Item>
<PackNumber>1234</PackNumber>
</Item>
<Item>
<PackNumber>567</PackNumber>
</Item>
<Item>
<PackNumber>567</PackNumber>
</Item>
<Item>
<PackNumber>126</PackNumber>
</Item>
<Item>
<PackNumber>876</PackNumber>
</Item>
</Afile>
</Move-Afile>
<A>
<target>
<counter>1</counter>
<PNumber>1234</PNumber>
<counter>2</counter>
<PNumber>567</PNumber>
<counter>3</counter>
<PNumber>126</PNumber>
<counter>4</counter>
<PNumber>876</PNumber>
</target>
</A>
1.
1234
2.
567
3.
126
4.
876
不要使用计数器变量并尝试每次递增它的值(这无论如何不会发生,因为xsl中的变量实际上是常量),而要尝试使用position()
,它可以作为唯一的递增标识符。下面是使用position()
的语法示例:
这很好。我们是否可以像上面的xslt类型那样修改它(将计数器值放入变量并分配给目标变量)。这是我添加的。确定没有问题,但是,您的输出中始终有一个计数。请检查我在上面添加的输出2。如果PNumber等于,我们必须忽略上面的输出2这样的循环…您可以修改此值。在您不喜欢输出的任何内容周围放置
。但现在看来,“用明钦方法分组”更合适。项目的原始顺序是否无效?你是否否决了我的答案?请注意,问题同时被更改了三次。第一个是明确的,只保留复制的PackNumner(作为PNumber)不计算复制的数量。包裹号码。第二个问题是如何在一个for-each内部实现这一点。第三个是删除PackNumber,如果重复,则计数。我对你的回答没有问题,只是有点冗长。我还认为你过于柔韧,无法配合OP的每一个突发奇想。