I want to analyse a list of transactions in XSLT 3.0 streaming mode.
Transactions should be grouped by a key which is nested inside each
transaction (see SUBITEM2.2/GROUPING-KEY below). For the grouped
transactions, there are items to count or items with numeric values to some
up, see ITEM1 and ITEM2/SUBITEM2.1.
<TRANSACTION-LIST>
<TRANSACTION>
<ITEM1> something to count </ITEM1>
<ITEM2>
<SUBITEM2.1> something to sum up</SUBITEM2.1>
<SUBITEM2.2> ...
<GROUPING-KEY>some-key</GROUPING-KEY>
</SUBITEM2.2>
</ITEM2>
</TRANSACTION> ...
</TRANSACTION-LIST>
The output should be a list as follows:
- Transaction following grouping key value 1:
Numbers of ITEM1
Sum of ITEM 2
- Transactions following grouping key value 2, 3, ...n: the same list with
other values.
I am wondering if this is possible with XSLT 3.0 streaming, since then the
XSLT processor "sees" the TRANSACTION element, it does not yet see the
nested grouping key.
- Felix
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