如何在XSLT 1.0中拆分节点值?
<mark>1,2</mark>
我需要在for循环中使用split的输出的每个值执行一些操作。
<xsl:for-each select="">
</xsl:for-each>
怎么做?
答案 0 :(得分:14)
<强>予。 XSLT 1.0解决方案:
以下是仅使用xxx:node-set()
扩展功能在XSLT 1.0中执行此操作的一种方法:
<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>
将此转换应用于以下XML文档:
<mark>1,2,3,4,5</mark>
生成想要的正确输出(每个项目乘以10):
<processedItem>10</processedItem>
<processedItem>20</processedItem>
<processedItem>30</processedItem>
<processedItem>40</processedItem>
<processedItem>50</processedItem>
<强> 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>
答案 1 :(得分:6)
Dimitre Novatchev的解释很棒,但是我们也可以用更简单的方式做到这一点而不使用node-set()
函数看看:
<?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="$datalist * 10"/>
</xsl:element>
</xsl:when>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
答案 2 :(得分:3)
在1.0中你需要编写一个递归模板 - 除非你没有,因为它已经被编写了。从str:tokenize下载http://www.exslt.org模板。
答案 3 :(得分:2)
如果你可以使用exslt,那么tokenize()
函数可以很好地完成这项工作。
node-set str:tokenize(string, string?)
答案 4 :(得分:0)
此代码将在XSLT 1.0中拆分分隔的字符串 (它适用于2.0,但不要使用节点集。) 它还可以选择性地抑制字符串中的空元素 或者可选地大写元素。
<!-- Example delimited string. -->
<xsl:variable name="delimitedString" select="'a, b, c, , , d, e, f, g'"/>
<!-- Create a node set where each node contains one of the elements from the
delimited string. -->
<xsl:variable name="splitNodes">
<xsl:call-template name="getNodeListFromDelimitedList">
<xsl:with-param name="inStrList" select="$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($inStr) > 1">
<xsl:call-template name="left-trim">
<xsl:with-param name="inStr" select="substring($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($inStr) > 1">
<xsl:call-template name="right-trim">
<xsl:with-param name="inStr" select="substring($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>