Question

我正在尝试根据XSLT中的一些javascript布尔变量更新我的XML数据，我不确定使用它的最佳方法是什么。我尝试下面的代码，但它似乎不起作用。你能帮帮我吗？

使用Javascript：

<msxsl:script language="JScript" implements-prefix="usr">
  <![CDATA[
            var FDAttempt = false;
            function setFDAttemptTrue()
            {
              FDAttempt = true;
            }
            function getFDAttempt()
            {
                return FDAttempt;
            }
        ]]>
</msxsl:script>

在其中一个模板中设置变量

<xsl:template name="FDTemplate">
  <xsl:if test ="usr:setFDAttemptTrue()" />
  <Tran>
    <TranName>FDAttempt</TranName>
    <Result>Forced</Result>
  </Tran>
</xsl:template>

检查布尔值：这是检查的正确方法吗

<xsl:when test ="Content/Journal">
  <xsl:variable name="x" select ="Content/*[1]" />
    <xsl:variable name="ForcedAttempt" select="usr:getFDAttempt()" />

     <xsl:if test ="$x/Name='Complete' and $x/Details='Error' and $ForcedAttempt='false'">
        <OutPut>
          <Name>SDM</Name>
          <Location>Transport</Result>
        </OutPut>
      </xsl:if>

</xsl:when>

Answer 1

Programming XSLT code that tries to get away with side-effects is a constant battle against the optimizer. You're quite likely to find that an instruction like

<xsl:if test ="usr:setFDAttemptTrue()" />

gets optimized away because it produces an empty result whether or not the test condition is true.

And your example doesn't really convince me that using extension functions and side-effects is needed to solve the problem you are tackling. (I would be more likely to be convinced if you described the problem.) As far as I can see, what you are doing could be achieved with simple xsl:param/xsl:with-param mechanisms.

如何检查XSLT中的javascript布尔值

1 个答案: