actually that helps a lot...my problem is not with a procedural
programming past but virtually no programming past...although a
javascript course in graduate school provided practice in pseudocode..
this is something that I can use elsewhere in my
stylesheet....contributor names come in 4 different elements and
dozens upon dozens of type...
thanks again..
regards,
dana
On Mon, Jun 11, 2012 at 8:05 PM, Syd Bauman <Syd_Bauman(_at_)brown(_dot_)edu>
wrote:
don't yet understand how the empty xsl:when does it (although I've
used it before)...but works like a charm..
Perhaps more intensive commenting will help:
<!--
We're going to hit this template several times in a row, once for
each <productidentifier>. We want to print out the ISBN13 if there
is one, and the ISBN10 if there is no ISBN13. So when we are
called for a <productidentifier>, we have to figure out whether to
generate output or not by looking at ourself and our siblings.
* if we are the ISBN13 case, print out
* if we are not the ISBN13 case, but one of our siblings is, then
don't do anything (the ISBN13 will be printed when our sibling is
matched by this very template)
* if we are not the ISBN13 case, and none of our siblings are
ISBN13, and we are the ISBN10, then print it out
* if we are not the ISBN13 case, and none of our siblings are
ISBN13, but we are not the ISBN10, then a warning message
-->
<xsl:template name="isbn" match="productidentifier">
<xsl:choose>
<!-- first take care of the "I am ISBN 13" case -->
<xsl:when test="child::b221 = '15'">
<controlfield tag="001">
<xsl:text>ISBN13 = </xsl:text>
<xsl:value-of select="b244"/>
</controlfield>
</xsl:when>
<!-- if we've gotten this far, this is not the "I am ISBN 13" case -->
<!-- test to see if we have a sibling that is hte ISBN 13 case;
if so, do nothing, as this template will do the work (above) when
it hits that sibling -->
<xsl:when test="parent::*/child::productidentifier/child::b221 = '15'"/>
<!-- we've gotten this far, so there is no sibling ISBN 13;
so use ISBN 10, if that's what I am -->
<xsl:when test="child::b221 = '02'">
<controlfield tag="001">
<xsl:text>ISBN10 = </xsl:text>
<xsl:value-of select="b244"/>
</controlfield>
</xsl:when>
<xsl:otherwise>
<xsl:message>Danger, Will Robinson! a 'productidentifier' that is
confusing</xsl:message>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
--~------------------------------------------------------------------
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
To unsubscribe, go to: http://lists.mulberrytech.com/xsl-list/
or e-mail:
<mailto:xsl-list-unsubscribe(_at_)lists(_dot_)mulberrytech(_dot_)com>
--~--
--
Dana Pearson
dbpearsonmlis.com
--~------------------------------------------------------------------
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
To unsubscribe, go to: http://lists.mulberrytech.com/xsl-list/
or e-mail: <mailto:xsl-list-unsubscribe(_at_)lists(_dot_)mulberrytech(_dot_)com>
--~--