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Index › Programming Questions & Help › Other Libraries › proXML & UTF-16

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proXML & UTF-16? (Read 401 times)

spiraljetty

proXML & UTF-16?
Jan 6^th, 2009, 4:05am

Hi, I'm not able to load in an XML file that is encoded in UTF-16 using the proXML library. When I run this code:

Code:

 xmlIO = new XMLInOut(this);
xmlIO.loadElement(dataPath("utf16.xml"));

I get the following error:

Code:

java.lang.NullPointerException
at proxml.XMLInOut$Loader.parseDocument(XMLInOut.java:118)
at proxml.XMLInOut$Loader.run(XMLInOut.java:452) 
(etc...)

Any ideas?

Thanks, Angus

spiraljetty

Re: proXML & UTF-16?
Reply #1 - Jan 6^th, 2009, 9:30am

In case anyone is interested, this workaround was successful and much faster than I expected it would be. After the xml file has been converted it can be opened with the processing XML libraries. I think the nanoXML and proXML libraries should be able to read UTF-16 encoded xml files though. So if there's a simpler way to do this let me know!

-Angus

Code:

//make sure to import java.io.*;


File readFrom = new File(dataPath("myUTF16.xml"));
File writeTo = new File(dataPath("myASCII.xml"));

try
{
	InputStreamReader isr = new InputStreamReader(new FileInputStream(readFrom), "UTF16");
	BufferedReader in = new BufferedReader(isr);
	FileOutputStream fos = new FileOutputStream(writeTo);
	Writer out = new OutputStreamWriter(fos, "ASCII");

	String line;
	while ((line = in.readLine()) != null) 
	{
	    line += "\n";
	    out.write(line);
	}

	in.close();
	out.close();
}
catch(IOException ioe)
{
	ioe.printStackTrace();
}

PhiLho

Re: proXML & UTF-16?
Reply #2 - Jan 6^th, 2009, 12:20pm

Is your XML file correct Does it has a Bom And/or an encoding attribute
See opentag.com - XML FAQ: Encoding for details.

Side question: does proXML have any advantage over built-in XML support I haven't studied them enough to tell.

[EDIT] Actually, I looked at the source of proXML, and indeed it does a manual parsing, expecting the file to start with "<?xml"! So UTF-16 is out, apparently. And Processing's native XML support (coming from nanoXML IIRC) explicitly rules out anything but UTF-8 (ie. default encoding).

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