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Re: [xsl] concat with unspecific length


Subject: Re: [xsl] concat with unspecific length
From: Wolfgang Laun <wolfgang.laun@xxxxxxxxx>
Date: Mon, 18 Jun 2012 16:03:13 +0200

You might consider a function pad:

<xsl:function name="x:pad" as="xsd:string">
   <xsl:param name="s" as="xsd:string"/>
   <xsl:param name="l" as="xsd:integer"/>
   <xsl:choose>
     <xsl:when test="string-length($s) &gt;= $l">
         <xsl:sequence select="$s"/>
     </xsl:when>
     <xsl:otherwise>
         <xsl:sequence select="concat(x:pad($s, $l - 1),' ')"/>
     </xsl:otherwise>
   </xsl:choose>
</xsl:function>

which you can call like this

   x:pad( $Field1, 11 )

You might want to truncate when the string length exceeds the 2nd operand.

-W




On 18/06/2012, Syd Bauman <Syd_Bauman@xxxxxxxxx> wrote:
> Length various based on what? Until position 11, 16, or 27 of what?
> From position 12 or 17 of what? (No field you show is > 10 chars, so
> I'm guessing those positions are of the concatenation of all fields.)
>
> Presuming
> 1) you can tuck the desired variable length from Field1 into a
>    variable $F1len,
> 2) the other positions you want are from the concatenation of all 4
>    strings,
> 3) we are in the template that matches the parent of the four <FieldN>
>    elements, and
> 4) I understand what you're asking for (low probability),
> then:
>
>   <xsl:template match="FieldsParent">
>     <xsl:variable name="F1len" select="6"/>
>     <xsl:variable name="all" select="concat( Field1, Field2, Field3, Field4
> )"/>
>     <xsl:value-of select="concat(
>       substring( $all, 1, $F1len ),
>       ' ',
>       substring( $all, 1, 11 ),
>       ' ',
>       substring( $all, 12 ),
>       ' ',
>       substring( $all, 1, 16 ),
>       ' ',
>       substring( $all, 17, 10 ),
>       ' ',
>       substring( $all, 1, 27 ),
>       Field4
>       )"/>
>   </xsl:template>
>
> should be pretty close.
>
> I'm betting I don't want to know why you want to do this.
>
>
>> I have following xml bellow and want to concat together as here:
>> Field1 [from position 1, length varies] + " " [until position 11] +
>> Field2 [from position 12] + " " [until position 16]+ Field3 [from
>> position 17, length always 10] + " " [until position 27] + Field4
>> Input
>> <Field1>2000090691</Field1>
>> <Field2>0010</Field2>
>> <Field3>2000090690</Field3>
>> <Field4>0010</Field14>


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