Re: [jira] Created: (XALANJ-2523) Element containing only empty text serialized as element with whitespace when using DOM3 LS format-pretty-print

[keshlam]

By turning the pretty-printing flag on, you gave the system permission to 
inject whitespace to indent the elements nicely. If that isn't what you 
wanted, don't request it....


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From:
"Kahmyong Moon (JIRA)" <xalan-dev@xml.apache.org>
To:
xalan-dev@xml.apache.org
Date:
10/01/2010 01:14 PM
Subject:
[jira] Created: (XALANJ-2523) Element containing only empty text 
serialized as element with whitespace when using DOM3 LS 
format-pretty-print



Element containing only empty text serialized as element with whitespace 
when using DOM3 LS format-pretty-print
---------------------------------------------------------------------------------------------------------------

                 Key: XALANJ-2523
                 URL: https://issues.apache.org/jira/browse/XALANJ-2523
             Project: XalanJ2
          Issue Type: Bug
      Security Level: No security risk; visible to anyone (Ordinary 
problems in Xalan projects.  Anybody can view the issue.)
          Components: Serialization
    Affects Versions: 2.7.1
         Environment: Serializing through DOM 3 LS API from included 
Xerces-J (2.9.0).
            Reporter: Kahmyong Moon
            Priority: Minor


I'm using DOM 3 LS to serialize a Document to an OutputStream with the 
format-pretty-print option. When I try to serialize an element containing 
only an empty text node, it serializes like this:

  <Element>
  </Element>

When I load the XML later, the element content ends up "\n  ", instead of 
"".

I'm expecting the element to serialize like this:

  <Element />

Or at least like this:

  <Element></Element>

Text nodes containing only whitespace and containing non-whitespace do 
serialize as expected:

  <Element>    </Element>
  <Element>text</Element>

I created the element like this:

  Document document;
  Element element;
  String text = "";
 
  Text textNode = document.createTextNode(text);
  element.appendChild(textNode);

As a workaround, if I check in my own code that the text is empty, and 
don't add a text node to the element, it serializes as expected:

  <Element />

It also works correctly if I normalize the document/element first (which 
removes the extraneous text node).

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