[xsl] Seek your recommendation on how to report differences in two <row> element sequences

["Roger L Costello costello@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

Hi Folks,

What does it mean to compare two sequences of <row> elements, where each <row>
element has (leaf) child elements?

Suppose sequence #1 has this <row> element:

    <row>
        <DESC>-</DESC>
    </row>

If there is no <row> in sequence #2 containing one child element named DESC
and value '-' then report that the <row> element is in sequence #1 and not in
sequence #2.

Suppose sequence #2 has this <row> element:

    <row>
        <DESC>-</DESC>
        <DESCRIPTION>AT OR BELOW ALTITUDE</DESCRIPTION>
    </row>

Should I report that the <row> element in sequence #1 is not in sequence #2?

Suppose sequence #1 has this <row> element:

    <row>
        <NAME>GENERAL EDWARD LAWRENCE LOGAN INTL</NAME>
        <ICAO>KBOS</ICAO>
        <WGS_LAT>N42214660</WGSLAT>
        <WGS_LONG>W071002300</WGS_LONG>
        <ELEV>00019</ELEV>
    </row>

And sequence #2 has this <row> element:

    <row>
        <NAME>GENERAL EDWARD LAWRENCE LOGAN INTL</NAME>
        <ICAO>KBOS</ICAO>
        <WGS_LAT>N42214660</WGSLAT>
        <WGS_LONG>W071002300</WGS_LONG>
        <ELEV>00018</ELEV>
    </row>

The ELEV values differ.

I could report that the <row> element in sequence #1 is not in sequence #2 but
that would be disingenuous because there is a <row> element in sequence #2
about LOGAN airport. It seems that reporting differences at the <row> element
level is bad, especially when there are many child elements, most of which
have the same values.

Should I report differences at the child element level? How to do this in a
meaningful and succinct way?

"In sequence #1 the <row> element for LOGAN airport differs from the sequence
#2 <row> element for LOGAN airport in the <ELEV> element."

That looks good, except I hand-crafted it; auto generating a meaningful report
would be difficult.

Question: how do you recommend reporting differences between two <row> element
sequences?

/Roger