<xsl:variable name="title">
<xsl:value-of select="."/>
</xsl:variable>
It's almost always better (and always more efficient)
to go
<xsl:variable name="title" select="."/>
or
<xsl:variable name="title" select="string(.)"/>
The first refers to the original element, the second makes a string, but
<xsl:variable name="title">
<xsl:value-of select="."/>
</xsl:variable>
makes a document node (result tree fragment in xslt 1) with a child
rtext node, which is a much more expensive thing.
<xsl:value-of select="46 div (string-length($title) div
28)"/>
that's just
<xsl:value-of select="1288 div string-length($title)"/>
pt
</xsl:when>
better to use
<xsl:text>pt</xsl:text>
otherwise you'll put a linebreak and 12 spaces into each attribute
value, the linebreak will also be &-escaped.
The formula is reflective exponential
well it's just a reciprocal not an exponential function.
David
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