Subject: RE: [xsl] Sorting network addresses From: "Michael Kay" <mike@xxxxxxxxxxxx> Date: Wed, 2 Mar 2005 14:47:07 -0000 |
Saxon allows you to define a collation based on your own Java comparator class. However, a better solution I think would be to write a function that normalizes the value into something that collates naturally: in 2.0 you can then invoke this function to calculate the sort key. xsl:sort select="my:mangler(ip-address)" xsl:function name="my:mangler" xsl:param... xsl:for-each select="tokenize(...)" xsl:value-of select="format-number(...)" Michael Kay http://www.saxonica.com/ > -----Original Message----- > From: Craig W [mailto:codecraig@xxxxxxxxx] > Sent: 02 March 2005 12:51 > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: [xsl] Sorting network addresses > > Hi, > Is there a way to extend the sort function provided by XSLT? I am > using XALAN. Basically, the elements that I need to sort need a more > specific sort than just text or number. > > well the default sorts are on number or text. But say I want to sort > on network addresses, such as 1.2.3.4 ....text and number dont work > here, I need my own sorting (like i would do with a Comparator in > java).. > > so if i had > > 1.2.3.4 > 170.1.3.3 > 2.4.3.2 > > I would want the sort to be like > 1.2.3.4 > 2.4.3.2 > 170.1.3.3 > > ...however (number sort wont work) and text sort does > 1.2.3.4 > 170.1.3.3 > 2.4.3.2 > > see what i mean? > > A sample XML may be like > ... > <networks> > <network> > <address>1.2.3.4</address> > </network> > <network> > <address>170.1.3.3</address> > </network> > <network> > <address>2.4.3.2</address> > </network> > </networks> > > ....after sort i would like... > > <networks> > <network> > <address>1.2.3.4</address> > </network> > <network> > <address>2.4.3.2</address> > </network> > <network> > <address>170.1.3.3</address> > </network> > </networks> > > > Someone suggested a key, but I am not sure how that works or how to > make it sort on a network address. Any ideas? > > Thanks, > Craig
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