Hi Chris, It's due to the XML specifications. The backspace character is not a valid XML character. If you want to have it in your documents, you need to escape it. It seems there is a bug that causes it to fail to escape the backspace char when a XML document is serialized to String. What I suppose should happen is, that the resultung XML contains a  entity.
See here: http://www.w3.org/TR/REC-xml/#charsets (Section 2.2 Characters - Character range) Character Range Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF] /* any Unicode character, excluding the surrogate blocks, FFFE, and FFFF. */ Cheers, Richard Am 10.01.2007 um 08:08 schrieb Chris Lai /EEL/IT: > hi, > > I am having a problem on parsing xml with backspace (0x0008) char. > > (The tab char (0x0009) is fine) > > It turns out that dom4j cannot parse a xml with backspace char even > the xml > is generated by the dom4j itself. > > To demo the problem, here is the code section: > > import org.dom4j.Document; > import org.dom4j.DocumentException; > import org.dom4j.DocumentHelper; > import org.dom4j.Element; > > public class Foo { > > public static void main(String args[] ) { > Document document = DocumentHelper.createDocument(); > Element root = document.addElement( "root" ); > > Element author1 = root.addElement( "author" ) > .addText( "James Strachan" + (new Character((char) > 8)).toString() ); > > String text = document.asXML(); > System.out.println(text); > > try > { > DocumentHelper.parseText(text); > } > catch (DocumentException e) > { > e.printStackTrace(); //<----- excepiton occurs > } > > } > } > > The following are the output: > > <?xml version="1.0" encoding="UTF-8"?> > <root><author>James Strachan</author></root> > org.dom4j.DocumentException: Error on line 2 of document : Character > reference "" is an invalid XML character. Nested exception: > Character > reference "" is an invalid XML character. > at org.dom4j.io.SAXReader.read(SAXReader.java:482) > at org.dom4j.DocumentHelper.parseText(DocumentHelper.java:278) > at Foo.main(Foo.java:24) > Nested exception: > org.xml.sax.SAXParseException: Character reference "" is an > invalid XML > character. > at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) > at org.dom4j.io.SAXReader.read(SAXReader.java:465) > at org.dom4j.DocumentHelper.parseText(DocumentHelper.java:278) > at Foo.main(Foo.java:24) > Nested exception: org.xml.sax.SAXParseException: Character > reference "" > is an invalid XML character. > at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) > at org.dom4j.io.SAXReader.read(SAXReader.java:465) > at org.dom4j.DocumentHelper.parseText(DocumentHelper.java:278) > at Foo.main(Foo.java:24) > > Anyone know how to solve it? I use the dom4j-1.6.1.jar > > Regards, > > Chris Lai > > 29597369 > GET 6303 > > > ---------------------------------------------------------------------- > --- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to > share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php? > page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > dom4j-user mailing list > dom4j-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/dom4j-user ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ dom4j-user mailing list dom4j-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dom4j-user
