XSLT - extending variable

[Son KwonNam]

The title is quite ambiguos.
Any way let me explain.

In java, the following is possible.
----
String str = "";
for (int i=0; i < 10; i++) {
str = str + i;
}
----
the str variable becomes "0123456789 ".

I tried that kind thing in XSLT. but failed.
---
<xsl:variable name="str1"/>
<xsl:variable name="str2"/>

<xsl:for-each select="/ROOT/ELEMENT">
<xsl:variable name="str1">
<xsl:value-of select="$str1"/>
<xsl:value-of select="@value1 "/>
</xsl:variable>
<xsl:variable name="str2">
<xsl:value-of select="$str2"/>
<xsl:value-of select="@value1 "/>
</xsl:variable>
</xsl:for-each>

<tr>
<td><xsl:valu e-of select="$str1"/></td>
<td><xsl:valu e-of select="$str2"/></td>
</tr>
---
Any other way to achieve this kind operation in XSLT?

--
** Son KwonNam

http://kr.blog.yahoo.com/kwon37xi

Please DO NOT reply to this message's email address.
The address is fake.

[Kenneth Stephen]

Re: XSLT - extending variable


"Son KwonNam" <please@neverSe ndEmail.no> wrote in message
news:c88u81$522 $1@news1.kornet .net...[color=blue]
> The title is quite ambiguos.
> Any way let me explain.
>
> In java, the following is possible.
> ----
> String str = "";
> for (int i=0; i < 10; i++) {
> str = str + i;
> }
> ----[/color]
Hi,

Try this :

<xsl:template name="functiona lLanguagesImple mentIterationVi aRecursiveCalls ">
<xsl:param name="counter" />
<xsl:if test = "$counter &gt;= 10">
<xsl:value-of select="$counte r" />
<xsl:call-template
name="functiona lLanguagesImple mentIterationVi aRecursiveCalls ">
<xsl:with-param name="counter" select="number( $counter + 1)" />
</xsl:call-template>
</xsl:if>
</xsl:template>

.....

and call this by saying :

<xsl:variable name="str">
<xsl:call-template
name="functiona lLanguagesImple mentIterationVi aRecursiveCalls ">
<xsl:with-param name="counter" select="number( 0)" />
</xsl:call-template>
</xsl:variable>


Regards,
Kenneth

[Son KwonNam]

Re: XSLT - extending variable

Thanks for your quick answer.
But what I really wanted is not just add continuous numbers.
The values to be added are strings.

If there is not something like "str = str + value" in XSLT,
I should use <xsl:for-each> more than two times.
And I really did - I use <xsl:for-each> 8 times for every <td>, It gives
me horrible performance.

Kenneth Stephen ¾´ ±Û:[color=blue]
> "Son KwonNam" <please@neverSe ndEmail.no> wrote in message
> news:c88u81$522 $1@news1.kornet .net...
>[color=green]
>>The title is quite ambiguos.
>>Any way let me explain.
>>
>>In java, the following is possible.
>>----
>>String str = "";
>>for (int i=0; i < 10; i++) {
>>str = str + i;
>>}
>>----[/color]
>
> Hi,
>
> Try this :
>
> <xsl:template name="functiona lLanguagesImple mentIterationVi aRecursiveCalls ">
> <xsl:param name="counter" />
> <xsl:if test = "$counter &gt;= 10">
> <xsl:value-of select="$counte r" />
> <xsl:call-template
> name="functiona lLanguagesImple mentIterationVi aRecursiveCalls ">
> <xsl:with-param name="counter" select="number( $counter + 1)" />
> </xsl:call-template>
> </xsl:if>
> </xsl:template>
>
> ....
>
> and call this by saying :
>
> <xsl:variable name="str">
> <xsl:call-template
> name="functiona lLanguagesImple mentIterationVi aRecursiveCalls ">
> <xsl:with-param name="counter" select="number( 0)" />
> </xsl:call-template>
> </xsl:variable>
>
>
> Regards,
> Kenneth
>
>[/color]


--
** Son KwonNam

http://kr.blog.yahoo.com/kwon37xi

Please DO NOT reply to this message's email address.
The address is fake.

[Ben Edgington]

Re: XSLT - extending variable

Son KwonNam <please@neverSe ndEmail.no> writes:[color=blue]
> But what I really wanted is not just add continuous numbers.
> The values to be added are strings.
>
> If there is not something like "str = str + value" in XSLT,
> I should use <xsl:for-each> more than two times.
> And I really did - I use <xsl:for-each> 8 times for every <td>, It gives
> me horrible performance.[/color]

This *can* be done recursively, you just have to carry around a
few extra parameters. Here's a solution that makes a node-set
($nodes) and passes it to the recursive template along with a
pointer that keeps track of the current position. It's not
pretty, but it works OK. As for performance, I'd be interested
to know how it compares.

This XML
- - -
<foo>
<item value1="one" value2="ONE"/>
<item value1="two" value2="TWO"/>
<item value1="three" value2="THREE"/>
<item value1="four" value2="FOUR"/>
</foo>
- - -

with this transformation
- - -
<xsl:styleshe et
version="1.0"
xmlns:xsl="http ://www.w3.org/1999/XSL/Transform">

<xsl:template match="/foo">
<xsl:call-template name="concat-values">
<xsl:with-param name="num" select="1"/>
<xsl:with-param name="nodes" select="item"/>
<xsl:with-param name="string1" select="''"/>
<xsl:with-param name="string2" select="''"/>
</xsl:call-template>
</xsl:template>

<xsl:template name="concat-values">
<xsl:param name="num"/>
<xsl:param name="nodes"/>
<xsl:param name="string1"/>
<xsl:param name="string2"/>
<xsl:choose>
<xsl:when test="$nodes[$num]">
<xsl:call-template name="concat-values">
<xsl:with-param name="num" select="$num + 1"/>
<xsl:with-param name="nodes" select="$nodes"/>
<xsl:with-param name="string1"
select="concat( $string1,$nodes[$num]/@value1)"/>
<xsl:with-param name="string2"
select="concat( $string2,$nodes[$num]/@value2)"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwis e>
<xsl:text>Strin g1 = </xsl:text>
<xsl:value-of select="$string 1"/>
<xsl:text>&#x0a ;String2 = </xsl:text>
<xsl:value-of select="$string 2"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>

</xsl:stylesheet>
- - -

gives this output
- - -
<?xml version="1.0"?>
String1 = onetwothreefour
String2 = ONETWOTHREEFOUR
- - -

which you should be able to adapt to your situation.

Ben


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