Help with simple XSLT transformation - set xml tag names from parameter content

[juan_suros]

I need help with a simple transformation from internal table data to XML. I can do it in two stages, as shown below. I do not know how to do this in the transformation in one step:

TYPES:

  BEGIN OF zxml_lot_t,
    tag TYPE c,
    n TYPE c,
    mean TYPE c,
    max TYPE i,
    min TYPE i,
    sd TYPE f,
  END OF zxml_lot_t,

  BEGIN OF zxml_st_data,
    lots TYPE zxml_lot_t,
  END OF zxml_st_data.

DATA: gs_xml TYPE zxml_st_data.
DATA: gv_xml TYPE string.

<?sap.transform simple?><b
<tt:transform xmlns:tt="http://www.sap.com/transformation-templates" xmlns:ddic="http://www.sap.com/abapxml/types/dictionary" xmlns:def="http://www.sap.com/abapxml/types/defined">
  <tt:root name="ROOT" type="?"/>
  <tt:root name="ST_DATA" type="ddic:ZXML_ST_DATA"/>
  <tt:template>
    <CeramicmaterialsShipment>
      <Lot>
        <tt:loop ref=".ST_DATA.LOTS">
          <DIM>
            <tt:attribute name="TAG" value-ref="TAG"/>
            <tt:attribute name="N" value-ref="N"/>
            <tt:attribute name="MEAN" value-ref="MEAN"/>
            <tt:attribute name="MAX" value-ref="MAX"/>
            <tt:attribute name="MIN" value-ref="MIN"/>
            <tt:attribute name="SD" value-ref="SD"/>
          </DIM>
        </tt:loop>
      </Lot>
    </CeramicmaterialsShipment>
  </tt:template><br>
</tt:transform>

The data contains a field that describes the desired tag name

I call the transformation to convert the data

CALL TRANSFORMATION z_st_file
  OPTIONS xml_header = 'full'
  SOURCE  st_data = gs_xml
  RESULT XML gv_xml.

Resulting in xml structured data

A second step in ABAP converts the xml to the final desired form

REPLACE ALL OCCURRENCES OF REGEX '<DIM TAG="DIM([a-zA-Z0-9_\-]{1,50})"' IN gv_xml WITH '<DIM$1'.

And so the desired output results

Can this all be done in the transformation?

[Sandra_Rossi]

The language of your transformation is Simple Transformation (SAP Proprietary), not XSLT (W3C Standards).

As far as I know, you can't define dynamically the element names, except if you transform the code via an external method (tt:call-method) which implements IF_SXML_WRITER (to serialize). In your case, the method would need to transform almost everything so the transformation would do almost nothing and there's no interest in keeping the transformation.

A second solution is to use an XSLT transformation, it's slower, but you can choose the names of the elements inside the transformation itself (xsl:element name="{TAG}"...)

A third solution would be to not use a transformation because your final XML is quite simple. Note that you have the escape function in ABAP, which can escape the characters in both XML texts and attribute values.

[juan_suros]

I had never heard of the ABAP escape function. I'll take a look. The example as given is simplified from use case.