[jdom-interest] XMLOutputter changes from b8 to b9

[Dennis Sosnoski]

I don't think an XSD will do this for you - AFAIK in order to be 
reported as ignorable whitespace you have to use a DTD, since that's how 
the XML recommendation defines it.

  - Dennis

Phil Weighill-Smith wrote:

> Have you tried 1) having an XSD that indicates where whitespace is not 
> ignorable and 2) calling 
> SAXBuilder#setIgnoringElementContentWhitespace(true)?
>
> By doing both of these you give the (XERCES) parser the chance to 
> determine what whitespace is ignorable and the SAXBuilder the ability 
> to correctly ignore ignorable whitespace...
>
> Phil :n)
>
> On Thu, 2004-01-15 at 23:40, Beleznay, Dave wrote:
>
>>/Hi There,
>>
>>We've recently upgraded from Jdom b8 to b9, and had a few errors in the
>>upgrade process.
>>
>>If I have an XML document like so:
>>
>>        String xml = 
>>            "<enterprise>\n"+
>>            "<properties>\n"+
>>            "    <datasource>WebCT</datasource>\n"+
>>            "    <type>  Migration</type>\n"+
>>            "    <datetime>2002-06-06T14:59:05</datetime>\n"+
>>            "</properties>\n"+
>>            "</enterprise>\n";
>>
>>Where the spaces in front of <datasource> are not relevant, but the
>>spaces inside the elements (e.g. <type>) are relevant (this is just a
>>fragment of a larger bit of XML, it isn't really the <type> field that
>>matters here). When I put the document into Jdom, I get different
>>behaviour between Jdom b8 and b9.  I'd like to know the expected
>>behaviour, and if it doesn't match my desired behaviour, approximately
>>how I'm supposed to fix my code.  
>>
>>
>>Using the string above and the following code in Jdom b8  I get the
>>output below.
>>
>>        SAXBuilder builder = new SAXBuilder();
>>        Document doc = builder.build(new StringReader(xml));
>>        
>>        XMLOutputter xmlOutputter = new XMLOutputter("\t", true);
>>        xmlOutputter.setOmitDeclaration(true);
>>        xmlOutputter.setLineSeparator("\n");
>>        //xmlOutputter.setTextTrim(true);
>>        String output = xmlOutputter.outputString(doc.getRootElement());
>>        System.out.println(output);
>>
>>Desired output ( and output received from b8):
>>
>>output=
>>"<enterprise>\n\t<properties>\n\t\t<datasource>WebCT</datasource>\n\t\t<
>>type>
>>Migration</type>\n\t\t<datetime>2002-06-06T14:59:05</datetime>\n\t</prop
>>erties>\n</enterprise>"
>>
>>
>>When we upgraded to Jdom b9 we were in for a little bit of a surprise. 
>>
>>Output from b9 without TextTrim:
>>
>>output= "<enterprise>\n\t\n\n\t<properties>\n\t\t\n
>>\n\t\t<datasource>WebCT</datasource>\n\t\t\n    \n\t\t<type>
>>Migration</type>\n\t\t\n
>>\n\t\t<datetime>2002-06-06T14:59:05</datetime>\n\t\t\n\n\t</properties>\
>>n\t\n\n</enterprise>"
>>
>>Output from b9 with TextTrim:
>>
>>output=
>>"<enterprise>\n\t<properties>\n\t\t<datasource>WebCT</datasource>\n\t\t<
>>type>Migration</type>\n\t\t<datetime>2002-06-06T14:59:05</datetime>\n\t<
>>/properties>\n</enterprise>"
>>
>>(this is close, but took the spaces out before "   Migration" ) 
>>
>>Unfortunately the code farther down the line (not using jdom) which is
>>analyzing the xml has problems with the string  "\n\t\t\n
>>\n\t\t<datasource>WebCT<datasource>" and interprets the value as "
>>WebCT". I'm not happy with that either, but right now it's easier to fix
>>the behaviour of Jdom.
>>
>>It looks like this was changed XMLOutputter 1.87, and I'm trying to
>>figure out why.  I'd like to remove the whitespace outside the elements,
>>while preserving the whitespace inside.  As a temporary measure I've
>>added the check for currentFormat.newlines back to our skipLeadingWhite
>>method in XMLOutputter, but I'd like a more permanent solution.  
>>
>>Thank you very much.
>>
>>Cheers,
>>
>>Dav
>>
>>--
>>David Beleznay
>>Software Engineer
>>WebCT
>>_______________________________________________
>>To control your jdom-interest membership:/
>>/_http://lists.denveronline.net/mailman/options/jdom-interest/youraddr@yourhost.com_/
>>
> -- Phil Weighill-Smith <_phil.weighill-smith at volantis.com_ 
> <mailto:phil.weighill-smith at volantis.com>> Volantis Systems
>
>
>  
>