<xsl:variable name="longest-label" select="max(string-length(deflist/label))"/>
seems to have a typo: "deflist" which makes for the zero result.
Might not be the only problem as compared to solutions of the others.
Michel
On Wed, Oct 5, 2011 at 7:23 AM, Dimitre Novatchev
<dnovatchev(_at_)gmail(_dot_)com> wrote:
I'm trying to determine which of the three <label> elements
is the longest, so my desired output is: 14, which is the string
length of list/defitem/label[2]. The calculation needs to be made
while <list> is the context node
Use:
max(defitem/label/string-length())
The result is: 14
--
Cheers,
Dimitre Novatchev
---------------------------------------
Truly great madness cannot be achieved without significant intelligence.
---------------------------------------
To invent, you need a good imagination and a pile of junk
-------------------------------------
Never fight an inanimate object
-------------------------------------
You've achieved success in your field when you don't know whether what
you're doing is work or play
-------------------------------------
Facts do not cease to exist because they are ignored.
-------------------------------------
I finally figured out the only reason to be alive is to enjoy it.
On Tue, Oct 4, 2011 at 7:08 PM, Eric Harbeson
<kiteeatingtree(_at_)earthlink(_dot_)net> wrote:
Dear all,
I am trying to determine the length of the longest string of a given
element, which is the grand-child of the context node. I've looked all over
the archives and haven't found anything that I can get to work (possibly an
indictment of my searching skills). So I'm hoping a kind soul will take
pity and help me.
Details first: I'm using XSLT 2.0, though a 1.0 solution would be fine too.
I've tried processing using Saxon [PE | HE | EE] 9.3.0.5, as contained in
oXygen 12.2.
I have the following XML:
<record>
<list type="deflist">
<head>This is a test list</head>
<defitem>
<label>Processed by</label>
<item>Lynette Stoudt</item></defitem>
<defitem>
<label>Date Completed</label>
<item>February 1999</item></defitem>
<defitem>
<label>Encoded by</label>
<item>William Landis</item>
</defitem>
</list>
</record>
I'm trying to determine which of the three <label> elements is the longest,
so my desired output is: 14, which is the string length of
list/defitem/label[2]. The calculation needs to be made while <list> is the
context node. I've tried two different approaches:
1) It seems to me that it should be possible to do something like this:
<xsl:template match="list">
<template match="list">
<xsl:variable name="longest-label"
select="max(string-length(deflist/label))"/>
<xsl:value-of select="$longest-label"/>
</template>
</xsl:template>
...but this returns the number zero.
2) The closest thing I've found to an answer is the dual parameter solution
recommended by Michael Kay and as implemented by Phil Lanch on the dpawson
FAQ site (http://www.dpawson.co.uk/xsl/sect2/N8090.html#d10874e649 (#16: How
to find the longest node in a node-set)).
My implementation of that (which follows) generates the following error,
which I can't explain: "Required item type of first operand of '<' is
numeric; supplied value has item type xs:string."
<xsl:template match="list">
<xsl:variable name="longest-label">
<xsl:call-template name="getlongest">
<xsl:with-param name="nodeset" select="defitem/label"/>
<xsl:with-param name="longest"/>
</xsl:call-template>
</xsl:variable>
<xsl:text>LongestLabel </xsl:text><xsl:value-of
select="$longest-label"></xsl:value-of>
</xsl:template>
<xsl:template name="getlongest">
<xsl:param name="nodeset"/>
<xsl:param name="longest" select="0"/>
<xsl:choose>
<xsl:when test="$nodeset">
<xsl:choose>
<xsl:when test="string-length($nodeset[1]) > $longest">
<xsl:call-template name="getlongest">
<xsl:with-param name="nodeset"
select="$nodeset[position() > 1]"/>
<xsl:with-param name="longest"
select="string-length($nodeset[1])"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="getlongest">
<xsl:with-param name="nodeset"
select="$nodeset[position() > 1]"/>
<xsl:with-param name="longest" select="$longest"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$longest"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
I can't actually find the "<" that is at issue here. When debugging, I
noted that the value of $nodeset is never a number, but some thing like
"<label><label><label>", though I can't see why.
Any thoughts would be very appreciated.
With thanks in advance,
Eric Harbeson
--~------------------------------------------------------------------
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>
--~--
--~------------------------------------------------------------------
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>
--~--
--~------------------------------------------------------------------
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>
--~--