[jdom-interest] Re: jdom 1.0 XMLOutputter -- problems

[Frances]

Bradley S. Huffman wrote:
> Try this
> 
> import org.jdom.*;
> import org.jdom.output.*;
> import org.jdom.input.*;
> import java.io.*;
> 
> public class JdomTest3
> {
>   public static String[] testDocs = new String[]
>   {
>     "<r>aaa\nbbb</r>", // a single \n. nothing should happen
>     "<r>aaa\r\nbbb</r>", // a sequence of \r\n, nothing should happen
>     "<r>aaa\rbbb</r>" // a single \r, should be replaced with \n
>   };
> 
>   public static void main(String[] args)
>   {
>     SAXBuilder builder = new SAXBuilder();
>     try
>     {
>       int n = testDocs.length;
>       for(int i = 0; i < n; i++)
>       {
>         ByteArrayInputStream stream = new ByteArrayInputStream(testDocs[i].getBytes());
>         Document jdoc = builder.build(stream);
>         Element root = jdoc.getRootElement();
>         Content c = root.getContent(0); // Should be a Text node
>         System.out.println(c.toString());
>       }
>     }
>     catch (Exception e)
>     {
>       e.printStackTrace();
>     }
> 
>   }
> }
> 
> and notice all 3 testDocs produce the same output, "aaa\nbbb".  This happens
> because the parser, not jdom, normalizes the end of line character to a 
> single \n before passing it to the application.  There is no way to tell
> if the output "aaa\nbbb" came from testDocs[0], testDocs[1], or testDocs[2], 
> this is what the spec says the parser should do, and there is no way for JDOM
> or any other application to know how to serialize it back to it's original form.
> 
> Now for Content c = root.getContent(0) to return a Text node with a \r in
> it, then the original document must of had something like "<r>aaa&#A;bbb</r>".
> Otherwise, as above, the \r would have of been normalized to a single \n.
> Therefore on serialization all \r in text content need to be escaped as
> char. reference. It couldn't be there unless it was a char. reference in
> the original document.
> 
> Change to
> 
>   public static String[] testDocs = new String[]
>   {
>     "<r>aaa&#A;bbb</r>", // a single \n. nothing should happen
>     "<r>aaa&#D;&#A;nbbb</r>", // a sequence of \r\n, nothing should happen
>     "<r>aaa&#D;bbb</r>" // a single \r, should be replaced with \n
>   };
> 
> and see what it produces.
> 
> Brad
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> 

I tried this, it compiles fine but when try to run get error:

Exception in thread "main" java.lang.NoClassDefFoundError: 
org/jdom/input/SAXBuilder..

I downloaded jdom this weekend, put jdom.jar and all other jars that 
come with the download in the classpath...  but get many errors when 
trying to compile stuff (deprecated methods (like addAttribute(), which 
I change to setAttribute() but still get errors..  errors that 
SAXBuilder and XMLOutputter can't be found.. I looked in jar, I looked 
in docs, these classes are there..) what is the problem pls, thank you...