Hi Folks,
I just love the xsl:assert statement!
I am going wild with it.
I am peppering asserts through my XSLT program. Already I have caught a bunch
of errors that would otherwise have been missed.
It dawned on me that there are other mechanisms in XSLT that perform "implicit
asserts":
<xsl:param name="item" as="element(author)"/>
is equivalent to:
<xsl:param name="item"/>
<xsl:assert test="name($item) eq 'author'"/>
And this:
<xsl:variable name="item" select="..." as="element(author)+" />
is equivalent to:
<xsl:variable name="item" select="..." />
<xsl:assert test="count($item) ge 1" />
What other mechanisms are there in XSLT that effectively perform implicit
asserts?
What other ways do you do defensive programming in XSLT?
/Roger
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