Cart
|
[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Can someone help me understand why this isn't wo
 Responses below. ----- Original Message ----- From: "Wendell Piez" <wapiez@xxxxxxxxxxxxxxxx> To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx> Sent: Wednesday, January 19, 2005 7:33 PM Subject: Re: Can someone help me understand why this isn't working? > Hey Luke, > > At 06:08 PM 1/19/2005, you wrote: > >I have a basic example I am trying to get working to convert ;<P> to > ><P>. > > Is this by design? Do you have the alternative of getting a different form > of input? Not at present. This is what I have to work with at this time. > > >Here is the XML: > > > ><?xml version="1.0" encoding="iso-8859-1"?> > ><?xml-stylesheet type="text/xsl" href="hello.xsl"?> > ><greeting><P>Hello, world!</P></greeting> > > > >Here is the XSL: > > > ><?xml version="1.0" encoding="iso-8859-1"?> > ><xsl:stylesheet version="1.0" > >xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> > ><xsl:output method="html"/> > ><xsl:template match="/"> > ><html> > ><head> > ><title>Today's greeting</title> > ></head> > ><body> > ><xsl:apply-templates select="greeting"/> > ></body> > ></html> > ></xsl:template> > ><xsl:template match="P"> > ><em><xsl:apply-templates/></em> > ></xsl:template> > ></xsl:stylesheet> > > > >I am guessing that the value of greeting selected in the apply-templates > >call contains <P>Hello, world!</P> > > The string value of the greeting element in the source (as of the text node > child of that element) is, yes, the sequence of characters you are showing. > > (Keeping in mind that in that sequence < is < etc. - as nodes in the > tree, the character references have been resolved. That is, the string > value is actually "<P>Hello world!</P>" because that's what you had in your > input once it was parsed into the tree.) > > This is a far cry from a p element node. The only element is the greeting > element, whose text value this is. No template you can write will pick up > an element that doesn't exist. :-> I can see that now :-) > > >I was hoping because the output type was HTML a result tree containing > ><p>Hello, world!</p> would be created that my match="P" would process (my > >apologies if my terminology is not correct, still getting up to speed with > >this). > > The terminology is fine, but alas XSLT is not designed to work this way. > The processor does not re-parse strings on the fly into more nodes in the > tree. (Presumably you hide the XML with entities because you don't want it > processed.) There is nothing here to be matched: the apply-templates will > only find the text node. To handle it requires some kind of second parse. > > There seems to be an emerging industry in handling such "pseudo-XML". > Generally this practice is frowned upon in polite circles, because it > violates the spirit of XSLT node-think, tempts one to the heresy of > tag-writing (much as I might indulge in that vice in private, it's not > something I'd announce to the world), and is just generally nasty work. > (Expect things to break frequently whenever things fail to parse, which can > be often in such uncontrolled environments.) Stay clean, we urge: process > nodes and don't try to reparse strings. > > If you have to do it, there are generally two approaches: > > 1. Use an XSLT processor that supports disable-output-escaping, and use it > to write this content directly to files, where you can try to parse it (and > succeed if you are lucky). If you are smart you might even do useful > transformations at that stage. But you will probably have to clean up by hand. This is the approach I have gone with using regular expressions in Java. I don't like the solution but I feel more confident in it now having talked to some XSL experts. :-) > > 2. Use an extension function such as Saxon's, and try to parse those > strings in place. > > >Am I thinking about this the wrong way? Any advice would help. > > Optimally, you'd probably avoid pseudo-markup and find a way to enjoy the > full benefits of XML. > > If that is not an option, work the data over in two passes (or more) as > described above. > > Good luck, > Wendell Thank you. > > > ___&&__&_&___&_&__&&&__&_&__&__&&____&&_&___&__&_&&_____&__&__&&_____&_&&_ > "Thus I make my own use of the telegraph, without consulting > the directors, like the sparrows, which I perceive use it > extensively for a perch." -- Thoreau 
|
PURCHASE STYLUS STUDIO ONLINE TODAY!Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced! 
Download The World's Best XML IDE!Accelerate XML development with our award-winning XML IDE - Download a free trial today! Subscribe in XML format
|
