Is there any way to exit for each loop immediately once condition gets true?

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Nikhil Karande

i need to exit for each loop immediately once condition gets true. and want to return current index where loop breaks. below is my sample xml and xslt

<xsl:stylesheet xmlns:xalan="http://xml.apache.org/xalan" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt" version="1.0">
    <xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes" />
    <xsl:template match="Data">
        <xsl:element name="Data">
            <xsl:call-template name="TempData" />
        </xsl:element>
    </xsl:template>
    <xsl:template name="TempData">
        <xsl:element name="TempData">
            <xsl:for-each select="/Data/Subject/SubTest">
                    <xsl:choose>
                        <xsl:when test="@System='OK' and @SubFlag!='1'">
                            <xsl:attribute name="CurrentSubFlag">
                                <xsl:value-of select="position()" />
                            </xsl:attribute>
                        </xsl:when>
                    </xsl:choose>
                </xsl:for-each>
            <xsl:copy-of select="TempData/*" />
        </xsl:element>
    </xsl:template>
</xsl:stylesheet>

<Data>
    <Subject>
        <SubTest SubFlag="1" System="OK"> </SubTest>
        <SubTest SubFlag="csdcd" System="OK"> </SubTest>
        <SubTest SubFlag="zxczx" System="OK"> </SubTest>  
    </Subject>
    <TempData CurrentSubFlag="abc"/>
</Data>

output xml should be

<Data>
    <Subject>
        <SubTest SubFlag="1" System="OK"> </SubTest>
        <SubTest SubFlag="csdcd" System="OK"> </SubTest>
        <SubTest SubFlag="zxczx" System="OK"> </SubTest>  
    </Subject>
    <TempData CurrentSubFlag="2"/>
</Data>

if input is

<Data>
    <Subject>
        <SubTest SubFlag="1" System="OK"> </SubTest>
        <SubTest SubFlag="1" System="OK"> </SubTest>
        <SubTest SubFlag="1" System="OK"> </SubTest>  
    </Subject>
    <TempData CurrentSubFlag="abc"/>
</Data>

then output will be same CurrentSubFlag="abc"

michael.hor257k

xsl:for-each is not a loop, and the result you need can be accomplished without a loop or recursion.

Given:

XML

<Data>
    <Subject>
        <SubTest SubFlag="1" System="OK"> </SubTest>
        <SubTest SubFlag="csdcd" System="OK"> </SubTest>
        <SubTest SubFlag="zxczx" System="OK"> </SubTest>  
    </Subject>
    <TempData CurrentSubFlag="abc"/>
</Data>

the following stylesheet:

XSLT 1.0

<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:strip-space elements="*"/>

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

<xsl:template match="TempData">
    <xsl:variable name="index" select="count(/Data/Subject/SubTest[not(@SubFlag=1 and @System='OK')][1]/preceding-sibling::SubTest) + 1" />
    <TempData CurrentSubFlag="{$index}"/>
</xsl:template>

</xsl:stylesheet>

will return:

Result

<?xml version="1.0" encoding="UTF-8"?>
<Data>
  <Subject>
    <SubTest SubFlag="1" System="OK"/>
    <SubTest SubFlag="csdcd" System="OK"/>
    <SubTest SubFlag="zxczx" System="OK"/>
  </Subject>
  <TempData CurrentSubFlag="2"/>
</Data>

Added:

To accommodate your added condition, try:

<xsl:template match="TempData">
    <xsl:variable name="fail" select="/Data/Subject/SubTest[not(@SubFlag=1 and @System='OK')]" />
    <xsl:choose>
        <xsl:when test="$fail">
            <TempData CurrentSubFlag="{count($fail[1]/preceding-sibling::SubTest) + 1}"/>
        </xsl:when>
        <xsl:otherwise>
            <xsl:copy-of select="."/>
        </xsl:otherwise>
    </xsl:choose>
</xsl:template>

이 기사는 인터넷에서 수집됩니다. 재 인쇄 할 때 출처를 알려주십시오.

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에서 수정2021-04-5

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