Subject: Re: [xsl] question on random numbers for browser XSLT From: Martin Honnen <Martin.Honnen@xxxxxx> Date: Sat, 25 Jul 2009 12:03:49 +0200 |
<xsl:template name="rand">Interesting approach however when I test it with browsers then Firefox (3.0), Opera (9.63) and Safari (3.2) all seem to generate the same id each time that template is called:
<xsl:param name="scale" select="6" />
<xsl:variable name="seed" />
<xsl:choose>
<xsl:when test="function-available('exsl:node-set')">
<xsl:value-of select="document(concat('/cgi-bin/rand.pl?', $scale, '&x=', generate-id(exsl:node-set($seed))))" />
</xsl:when>
<xsl:when test="function-available('msxsl:node-set')">
<xsl:value-of select="document(concat('/cgi-bin/rand.pl?', $scale, '&x=', generate-id(msxsl:node-set($seed))))" />
</xsl:when>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
That'll give you six random values, assuming the Perl script recognizes the &x=Idxxxxx as cache-append garbage.
http://home.arcor.de/martin.honnen/xslt/test2009072402.xml
(stylesheet: http://home.arcor.de/martin.honnen/xslt/test2009072402Xsl.xml)
Only IE (tested with IE 8) generates different ids.
In XSLT 1.0 (I was surprised to rediscover just now), the value of variable $seed is not a result tree fragment, it is a zero-length string. So I'm a little bit surprised that exslt:node-set() should work on it at all, and not particularly surprised that it should generate the same node-set each time.
Martin Honnen http://msmvps.com/blogs/martin_honnen/
Current Thread |
---|
|
<- Previous | Index | Next -> |
---|---|---|
RE: [xsl] question on random number, Michael Kay | Thread | Re: [xsl] question on random number, Hermann Stamm-Wilbra |
Re: [xsl] Re: question on random nu, Hermann Stamm-Wilbra | Date | Re: [xsl] Re: question on random nu, Dimitre Novatchev |
Month |