[xsl] parametrized return values in recursive functions?

[himanshu padmanabhi <himanshu.padmanabhi@xxxxxxxxx>]

Thanks a ton for all that.

<xsl:template match="Services">
    <xsl:param name="flag" />
    <tr><td>
     <select name="args1">

<!--
"$value" will contain '--name servicename1'.

"$args1" will contain list of all service names SEPARATED BY SPACE
obv. including 'servicename1'.

so this portion will only print 'servicename1' in combo eliminating
'--name' with help of 'flag' condition.

I want to capture 'servicename1',so that I can pass it to next
tokenize which print all other service names

from combo index 1 onwards(0th being 'servicename1').Passing parameter
as 'servicename1' will exclude

it printing twice in this tokenize
-->
        <xsl:if test="$value">
            <xsl:call-template name="str:tokenize">
                   <xsl:with-param name="args" select="$value" />
                    <xsl:with-param name="flag" select="1" />
             </xsl:call-template>
         </xsl:if>
         <xsl:call-template name="str:tokenize">
                  <xsl:with-param name="args" select="$args1"/>
                  <xsl:with-param name="flag" select="0" />
         </xsl:call-template>
     </select>
    <td><tr>
</xsl:template>

<!-- string tokenize function -->
<xsl:template name="str:tokenize">
    <xsl:param name="args" select="$args" />
    <xsl:param name="delimiters" select="' '" />
    <xsl:param name="flag" select="$flag" />

    <xsl:call-template name="str:_tokenize-delimiters">
        <xsl:with-param name="args" select="$args" />
            <xsl:with-param name="delimiters" select="$delimiters" />
            <xsl:with-param name="flag" select="$flag"/>
    </xsl:call-template>
</xsl:template>


<xsl:template name="str:_tokenize-delimiters">
    <xsl:param name="args"/>
    <xsl:param name="delimiters"/>
    <xsl:param name="pos" select="1"/>
    <xsl:param name="flag" />

    <xsl:variable name="delimiter" select="substring($delimiters, 1, 1)"/>

    <xsl:variable name="left">
        <xsl:choose>
            <xsl:when test="not(contains($args,$delimiter))">
                <xsl:value-of select="$args"/>
            </xsl:when>

            <xsl:otherwise>
                <xsl:value-of select="substring-before($args,$delimiter)"/>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:variable>

    <xsl:variable name="right" select="substring-after($args,$delimiter)"/>

    <xsl:if test="$left != ''">
        <xsl:if test="not($flag = 1 and $pos = 1)">
            <option pos="{$pos}"><xsl:value-of select="$left"/></option>
        </xsl:if>
    </xsl:if>

    <xsl:if test="$right != ''">
        <xsl:call-template name="str:_tokenize-delimiters">
            <xsl:with-param name="args" select="$right"/>
            <xsl:with-param name="delimiters" select="$delimiters"/>
            <xsl:with-param name="pos" select="$pos + 1"/>
            <xsl:with-param name="flag" select="$flag" />
        </xsl:call-template>
    </xsl:if>
</xsl:template>
-----------------------------------------------------------------------------
---------------------------------------
I tried using

1.

<xsl:if test="$value">
      <xsl:variable name="servname">
            <xsl:call-template name="str:tokenize">
                   <xsl:with-param name="args" select="$value" />
                    <xsl:with-param name="flag" select="1" />
             </xsl:call-template>
     </xsl:variable>
</xsl:if>
<!-- and passing this variable to next tokenize call which will check
and wont double print it -->

2.
       <xsl:call-template name="str:tokenize">
             <xsl:with-param name="args" select="$value" />
             <xsl:with-param name="flag" select="1" />
             <xsl:with-param name="paramreturnvalue" />
        </xsl:call-template>

    <!-- passing this param to every recursive call and filling this
parameter in the tokenize-delimiter template -->

Both of these approaches didn't worked.
Can you tell me where I went wrong and which approach is better?

On Thu, Apr 2, 2009 at 1:34 PM, Michael Kay <mike@xxxxxxxxxxxx> wrote:
>
> > I just want to ask how to track "position" in recursive
> > functions like "str:_tokenize-delimiters"?
>
> Just give the function another argument, $position, and increment it by one
> on each call.
>
> Michael Kay
> http://www.saxonica.com/
>



--
---------------------------------
Thanks and Regards,
Himanshu Padmanabhi