-----Original Message----- From: Rush Manbert [mailto:[EMAIL PROTECTED] Sent: Wednesday, February 14, 2007 4:50 PM To: Will Sappington Cc: John Dennis; [email protected] Subject: Re: [xml] "Proper" way to use XML (not library specific)
<snip> I think your original post mentioned some difficulty due to unfamiliarity with XPath. Here's a very good tutorial site that helped me learn to use XSLT: http://www.zvon.org/index.php?nav_id=tutorials&mime=html Best regards, Rush Thanks for this info, Rush, I'll check it out. The difficulty I was having was not with XPath itself, but rather how to implement this particular solution with the Xalan/Xerces libraries. I really would rather be using libxml, but the decision was more or less made for me. The difficulty was that the DOM instance is bound to an instance of another object, a "parser liaison" such that when the parser liaison goes out of scope, it takes the DOM with it and both are destroyed. The example code I was looking at built the DOM and did the XPath queries all in one function, but what I needed to do with the Profile class was open the file and parse/build the DOM in one method - open() - and then do the XPath queries in another method - getItem(). The problem with it is that the parser gets instantiated in the open() call and then goes out of scope when open() returns. The parser could not be instantiated as member data, as the DOM pointer could, because it does things in the default constructor that fail if the X library initialize() methods haven't been called first. What I ended up doing was using a static member function in the Profile class to call the initialize() methods, then instantiate the Profile object via 'new' and return a pointer to it. Now when the parser instantiates as member data, the X libraries are initialized and everyone is happy. Thank you all very much for your thoughts and for the help you've given me. Best, -will _______________________________________________ xml mailing list, project page http://xmlsoft.org/ [email protected] http://mail.gnome.org/mailman/listinfo/xml
