Subject: RE: [xsl] parsing version number strings From: "Michael Kay" <mike@xxxxxxxxxxxx> Date: Wed, 20 Oct 2004 14:40:13 +0100 |
In pure XSLT 1.0 this needs a recursive template that reads one piece of the string at a time using substring-before - it's a textbook example of using recursion. In 2.0 there's a tokenize() function which makes it much easier. You can also find str:tokenize() as an EXSLT extension for many 1.0 processors. Michael Kay http://www.saxonica.com/ > -----Original Message----- > From: Ed_Owen@xxxxxxxxxxxxxxxxxxxx > [mailto:Ed_Owen@xxxxxxxxxxxxxxxxxxxx] > Sent: 20 October 2004 01:00 > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: [xsl] parsing version number strings > > > > > > Has anyone out there come up with a method to parse an > arbitrary version > number string in an XSLT for numeric comparison? > > For example, I'm parsing some Doxygen output and I need to > apply different > templates based on which version of Doxygen produced the output. For > example, I have something that needs to be applied only to > versions 1.3.4 > and older. > > The version of Doxygen is stored in an attribute of the root <doxygen> > element: <doxygen version="1.3.4"> > > Here is a sequence of increasingly newer version numbers that > illustrates > some of the complexities of parsing this string: > > 1.2.9 > 1.2.10 > 1.2.10.1 > 1.3 > 1.3.1 > 1.3.2 > 1.3.2.1 > > There doesn't seem to be an XPath function that gives me the > position of a > character within a string, which kind of hamstrings me, as > far as I can > tell. > > Anyone solved this problem before? > > thanks > Ed > > Ed Owen > Project Manager > Information Design and Development (IDD) > Sony Computer Entertainment America > e-mail: ed_owen@xxxxxxxxxxxxxxxxxxxx
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