depending on your input constraints it might be easier to add the () in
the template for the indicator element, something like
<xsl:if test="format">
<xsl:text>(</xsl:text>
<xsl:apply-templates select="format"/>
<xsl:text>)</xsl:text>
</xsl:if>
but if you want to do it on
format then something like
<xsl:template match="format[parent::indicator and ancestor::history]">
<xsl:text> </xsl:text>
<xsl:if test="not(preceding-sibling::*[1][self::format]">(</xsl:if>
<xsl:apply-templates/>
<xsl:if test="not(following-sibling::*[1][self::format]">)</xsl:if>
</xsl:template>
I'd write the match pattern as history//indicator/format but it probably
doesn't make any difference.
david
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