2011-09-15 41 views
10

如何在XSLT 1.0中拆分节点值?在xslt 1.0中拆分函数

<mark>1,2</mark> 

我需要在for循环中执行一些操作,使用split的每个输出值。

<xsl:for-each select=""> </xsl:for-each>

如何做到这一点?

+0

数值中是否总是有两个项,或者它是可变数? –

+0

它可能会有所不同。它是节点标记的值。 –

+0

好问题,+1。根据使用哪个版本的XSLT(1.0或2.0),可以通过递归处理或仅使用标准XPath 2.0函数'tokenize()'完成此操作。 –

回答

12

一XSLT 1.0解决方案

下面是仅使用xxx:node-set()扩展功能为此在XSLT 1.0的一种方式:

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
xmlns:ext="http://exslt.org/common" exclude-result-prefixes="ext"> 
<xsl:output omit-xml-declaration="yes" indent="yes"/> 

<xsl:template match="mark"> 
    <xsl:variable name="vrtfSplit"> 
    <xsl:apply-templates/> 
    </xsl:variable> 

    <xsl:for-each select="ext:node-set($vrtfSplit)/*"> 
    <processedItem> 
    <xsl:value-of select="10 * ."/> 
    </processedItem> 
    </xsl:for-each> 
</xsl:template> 

<xsl:template match="text()" name="split"> 
    <xsl:param name="pText" select="."/> 
    <xsl:if test="string-length($pText) >0"> 
    <item> 
    <xsl:value-of select= 
     "substring-before(concat($pText, ','), ',')"/> 
    </item> 

    <xsl:call-template name="split"> 
    <xsl:with-param name="pText" select= 
    "substring-after($pText, ',')"/> 
    </xsl:call-template> 
    </xsl:if> 
</xsl:template> 
</xsl:stylesheet> 

当这个变换通货膨胀被施加到下面的XML文档

<mark>1,2,3,4,5</mark> 

的想要的,正确的输出(每个项目乘以10)产生

II。 XSLT 2.0解决方案

<xsl:stylesheet version="2.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
xmlns:xs="http://www.w3.org/2001/XMLSchema" 
    exclude-result-prefixes="xs"> 
<xsl:output omit-xml-declaration="yes" indent="yes"/> 

<xsl:template match="mark"> 
    <xsl:for-each select="tokenize(., ',')"> 
    <processedItem> 
    <xsl:sequence select="10*xs:integer(.)"/> 
    </processedItem> 
    </xsl:for-each> 
</xsl:template> 
</xsl:stylesheet> 
4

通过Dimitre Novatchev的交代是真棒,但我们也能做到这一点的更简单的方法,而无需使用node-set()功能看看:

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


    <xsl:output omit-xml-declaration="yes" indent="yes"/> 



    <xsl:variable name="delimiter"> 
     <xsl:text>,</xsl:text> 
    </xsl:variable> 



    <xsl:template match="mark"> 
     <xsl:variable name="dataList"> 
      <xsl:value-of select="."/> 
     </xsl:variable> 
     <xsl:call-template name="processingTemplate"> 
      <xsl:with-param name="datalist" select="$dataList"/> 
     </xsl:call-template> 
    </xsl:template> 

    <xsl:template name="processingTemplate"> 
     <xsl:param name="datalist"/> 


     <xsl:choose> 
     <xsl:when test="contains($datalist,$delimiter) "> 
       <xsl:element name="processedItem"> 
        <xsl:value-of select="substring-before($datalist,$delimiter) * 10"/> 
       </xsl:element> 
       <xsl:call-template name="processingTemplate"> 
        <xsl:with-param name="datalist" select="substring-after($datalist,$delimiter)"/> 
       </xsl:call-template> 
     </xsl:when> 
      <xsl:when test="string-length($datalist)=1"> 
       <xsl:element name="processedItem"> 
        <xsl:value-of select="$datalist * 10"/> 

        </xsl:element> 
      </xsl:when> 
     </xsl:choose>  

    </xsl:template> 
</xsl:stylesheet> 
0

此代码将在XSLT 1.0 (拆分分隔的字符串它将适用于2.0,但不使用节点集。) 它还可以选择性地抑制字符串 中的空元素或可选地大写元素。

<!-- Example delimited string. --> 
<xsl:variable name="delimitedString" select="'a, b, c, , , d, e, f, g'"/> 

<!-- Create a node set where each node contains one of the elements from the 
    delimited string. --> 
<xsl:variable name="splitNodes"> 
    <xsl:call-template name="getNodeListFromDelimitedList"> 
    <xsl:with-param name="inStrList" select="$delimitedString"/> 
    <xsl:with-param name="delimiter" select="','"/> 
    <xsl:with-param name="suppressEmptyElements" select="false()"/> 
    <xsl:with-param name="upperCase" select="false()"/> 
    <xsl:with-param name="allTrim" select="false()"/> 
    </xsl:call-template>  
</xsl:variable> 

<!-- Use this for XSLT 1.0 only. --> 
<xsl:variable name="splitNodesList" select="msxml:node-set($splitNodes)"/> 

<!-- Use the split node list to do something. For example, create a string like 
    the delimited string, but without the delimiters. --> 
<xsl:variable name="nonDelimitedString"> 
    <xsl:for-each select="$splitNodesList/element"> 
    <xsl:value-of select="."/> 
    </xsl:for-each> 
</xsl:variable> 


<!-- Do something with the nonDelimitedString. --> 

<!-- 
***************************************************************************************** 

This template converts a delimited string list to a node list as follows: 

Each value in the delimited input string is extracted from the string. Then, a node is 
created to contain the value. The name of the node is 'element', and it is added to the 
list. To use this template, create an variable and call this template from within the variable. 
If you are using XSLT version 1.0, convert the node list to a node set using the node-set 
function. You can access the element as follows: $SomeVariableNodeSet/element 

***************************************************************************************** 
--> 
<xsl:template name="getNodeListFromDelimitedList"> 
    <!-- Delimited string with one or more delimiters. --> 
    <xsl:param name="inStrList"/> 
    <!-- The delimiter. --> 
    <xsl:param name="delimiter" select="'|'"/> 
    <!-- Set to true to suppress empty elements from being added to node list. Otherwise, set to 'false'.--> 
    <xsl:param name="suppressEmptyElements" select="true()"/> 
    <!-- Set to true to upper case the strings added to the node list. --> 
    <xsl:param name="upperCase" select="false()"/> 
    <!-- Set to true to left trim and right trim the strings added to the nodes list. --> 
    <xsl:param name="allTrim" select="false()"/> 

    <xsl:variable name="element"> 
    <xsl:choose> 
     <xsl:when test="contains($inStrList,$delimiter)"> 
     <xsl:value-of select="substring-before($inStrList,$delimiter)"/> 
     </xsl:when> 
     <xsl:otherwise> 
     <xsl:value-of select="$inStrList"/> 
     </xsl:otherwise> 
    </xsl:choose> 
    </xsl:variable> 

    <!-- Write out the element based on parameters. --> 
    <xsl:if test="not($suppressEmptyElements) or normalize-space($element) != ''"> 
    <!-- Put the element in the list. --> 
    <xsl:element name="element"> 
     <xsl:choose> 
     <xsl:when test="$allTrim"> 
      <xsl:call-template name="all-trim"> 
      <xsl:with-param name="inStr" select="$element"/> 
      <xsl:with-param name="upperCase" select="$upperCase"/> 
      </xsl:call-template> 
     </xsl:when> 
     <xsl:when test="$upperCase"> 
      <xsl:value-of select="translate($element, 'abcdefghijklmnopqrstuvwxyz', 'ABCDEFGHIJKLMNOPQRSTUVWXYZ')"/> 
     </xsl:when> 
     <xsl:otherwise> 
      <xsl:value-of select="$element"/> 
     </xsl:otherwise> 
     </xsl:choose> 
    </xsl:element> 
    </xsl:if> 

    <xsl:if test="contains($inStrList,$delimiter)"> 
    <!-- Call template recursively to process the next element. --> 
    <xsl:call-template name="getNodeListFromDelimitedList"> 
     <xsl:with-param name="inStrList" select="substring-after($inStrList,$delimiter)"/> 
     <xsl:with-param name="delimiter" select="$delimiter"/> 
     <xsl:with-param name="suppressEmptyElements" select="$suppressEmptyElements"/> 
     <xsl:with-param name="upperCase" select="$upperCase"/> 
     <xsl:with-param name="allTrim" select="$allTrim"/> 
    </xsl:call-template> 
    </xsl:if> 

</xsl:template> 


<!-- 
***************************************************************************************** 
This template trims the blanks from the left and right sides of a string. 
***************************************************************************************** 
--> 
<xsl:template name="all-trim"> 
    <!-- The string that you want to all trim. --> 
    <xsl:param name="inStr"/> 
    <xsl:param name="upperCase" select="false()"/> 

    <xsl:variable name="leftTrimmed"> 
    <xsl:call-template name="left-trim"> 
     <xsl:with-param name="inStr" select="$inStr"/> 
    </xsl:call-template> 
    </xsl:variable> 

    <xsl:variable name="rightTrimmed"> 
    <xsl:call-template name="right-trim"> 
     <xsl:with-param name="inStr" select="$leftTrimmed"/> 
    </xsl:call-template> 
    </xsl:variable> 

    <xsl:choose> 
    <xsl:when test="$upperCase"> 
     <xsl:value-of select="translate($rightTrimmed, 'abcdefghijklmnopqrstuvwxyz', 'ABCDEFGHIJKLMNOPQRSTUVWXYZ')"/> 
    </xsl:when> 
    <xsl:otherwise> 
     <xsl:value-of select="$rightTrimmed"/> 
    </xsl:otherwise> 
    </xsl:choose> 
</xsl:template> 

<!-- 
***************************************************************************************** 
This template trims the blanks from the left side of a string. 
***************************************************************************************** 
--> 
<xsl:template name="left-trim"> 
    <!-- The string you want to left trim. --> 
    <xsl:param name ="inStr"/> 

    <xsl:choose> 
    <xsl:when test="$inStr!=''"> 
     <xsl:variable name="temp" select="substring($inStr, 1, 1)"/> 
     <xsl:choose> 
     <xsl:when test="$temp=' '"> 
      <xsl:choose> 
      <xsl:when test="string-length($inStr) &gt; 1"> 
       <xsl:call-template name="left-trim"> 
       <xsl:with-param name="inStr" select="substring($inStr, 2, string-length($inStr)-1)"/> 
       </xsl:call-template> 
      </xsl:when> 
      <xsl:otherwise> 
       <xsl:value-of select="''"/> 
      </xsl:otherwise> 
      </xsl:choose> 
     </xsl:when> 
     <xsl:otherwise> 
      <xsl:value-of select="$inStr"/> 
     </xsl:otherwise> 
     </xsl:choose> 
    </xsl:when> 
    <xsl:otherwise> 
     <xsl:value-of select="''"/> 
    </xsl:otherwise> 
    </xsl:choose> 
</xsl:template> 


<!-- 
***************************************************************************************** 
This template trims the blanks from the right side of a string. 
***************************************************************************************** 
--> 
<xsl:template name="right-trim"> 
    <!-- The string you want to right trim. --> 
    <xsl:param name ="inStr"/> 

    <xsl:choose> 
    <xsl:when test="$inStr!=''"> 
     <xsl:variable name="temp" select="substring($inStr, string-length($inStr), 1)"/> 
     <xsl:choose> 
     <xsl:when test="$temp=' '"> 
      <xsl:choose> 
      <xsl:when test="string-length($inStr) &gt; 1"> 
       <xsl:call-template name="right-trim"> 
       <xsl:with-param name="inStr" select="substring($inStr, 1, string-length($inStr)-1)"/> 
       </xsl:call-template> 
      </xsl:when> 
      <xsl:otherwise> 
       <xsl:value-of select="''"/> 
      </xsl:otherwise> 
      </xsl:choose> 
     </xsl:when> 
     <xsl:otherwise> 
      <xsl:value-of select="$inStr"/> 
     </xsl:otherwise> 
     </xsl:choose> 
    </xsl:when> 
    <xsl:otherwise> 
     <xsl:value-of select="''"/> 
    </xsl:otherwise> 
    </xsl:choose> 
</xsl:template>