Subject: Re: [xsl] Converting a string to Uppercase or Lowercase without using translate() ? From: "Andrew Welch" <andrew.j.welch@xxxxxxxxx> Date: Tue, 27 Nov 2007 15:14:07 +0000 |
On 27/11/2007, G. Ken Holman <gkholman@xxxxxxxxxxxxxxxxxxxx> wrote: > I suppose ... I guess I see the problem as a lexical issue and not an > algorithmic issue. I cannot comment on optimization opportunities > for XSLT engines when faced with an explicit string or a variable > reference ... perhaps someone on the list can comment on this. > > Would you tackle the following with a variable as well? > > <!DOCTYPE xsl:stylesheet [ > <!ENTITY nbsp ' '> > ]> > <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" > version="1.0"> > > . . . . . . . . . . I use #160's... I guess I'm relatively young in the markup world (just turned 29) so I've never really used entities much, especially to the point where I'd prefer nbsp to it's actual value. I really don't like doctype declarations at the top of my stylesheets, but I don't like the use of entities in general. I'm not too sure why, but I think it might have come from hunting through ent files for the definition using something like Notepad. I've not had positive experience with DTDs or entities (or default values) where I've thought - "wow thats a good idea". Perhaps I've not enountered them enough in the wild, or the few that I have come across haven't been done well. > I don't think people new to XSLT should forget that we are, after > all, working with XML files. We are, but I think defining entities at the top of your stylesheet is an abuse of the fact that XSLT is written in XML, rather than using it in your favour. You could for example, counter XSLTs verbosity with some entities: <!ENTITY f-sib 'following-sibling'> and <xsl:value-of select="//a/&f-sib;::b"/> to get all of the <b> following-siblings of <a>. or perhaps "manage" your namespaces: <!ENTITY xslt-ns 'http://www.w3.org/1999/XSL/Transform'> <xsl:stylesheet xmlns="&xslt-ns;" version="2.0"> I know I'm being silly now... -- Andrew Welch http://andrewjwelch.com Kernow: http://kernowforsaxon.sf.net/
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