RE: [xml-dev] Handling of significant whitespace in .NET XmlReader

["Dare Obasanjo" <dareo@microsoft.com>]

Whitespace is made significant by the presences of an xml:space="preserve".

________________________________

From: Eckenberger Axel [mailto:Extern.Eckenberger@kmweg.de]
Sent: Thu 7/3/2003 1:45 AM
To: xml-dev@lists.xml.org
Cc: Scherbel, Michael
Subject: [xml-dev] Handling of significant whitespace in .NET XmlReader



Is there any known problem with the handling of singnificant whitespace in
the .NET XmlReader ???

... or better ...

Is there any significant whitespace handling at all ???

The following code snipplet

<code>
        string xml = "<!DOCTYPE a [\n<!ENTITY uuml \"ü\">\n]>\n<a>    <b>
aasdf   </b>" +
                         "<c>asdfasdf dadf<d/>asd<d>asdfasd</d> &uuml;adasdf
asd  &uuml;  asdf asdf </c>\n" +
                         "</a>";
                       
        XmlTextReader reader = new XmlTextReader(new
System.IO.StringReader(xml));
        reader.WhitespaceHandling = WhitespaceHandling.All;

        while (reader.Read()) {
                System.Diagnostics.Trace.WriteLine(
                        "[" + reader.NodeType + "] " + reader.Name + " ==>
\"" + reader.Value + "\""
                );
        }
</code>

Produces the same output for WhitespaceHandling.Significant and
WhitespaceHandling.None and for WhitespaceHandling.All the only whitespace
relevant node type returned is 'Whitespace' (see output later on).


Bye

Axel

<output>
For WhitespaceHandling.None:
[DocumentType] a ==> "
<!ENTITY uuml "ü">
"
[Element] a ==> ""
[Element] b ==> ""
[Text]  ==> "  aasdf   "
[EndElement] b ==> ""
[Element] c ==> ""
[Text]  ==> "asdfasdf dadf"
[Element] d ==> ""
[Text]  ==> "asd"
[Element] d ==> ""
[Text]  ==> "asdfasd"
[EndElement] d ==> ""
[EntityReference] uuml ==> ""
[Text]  ==> "adasdf asd  "
[EntityReference] uuml ==> ""
[Text]  ==> "  asdf asdf "
[EndElement] c ==> ""
[EndElement] a ==> ""

For WhitespaceHandling.Significant:
[DocumentType] a ==> "
<!ENTITY uuml "ü">
"
[Element] a ==> ""
[Element] b ==> ""
[Text]  ==> "  aasdf   "
[EndElement] b ==> ""
[Element] c ==> ""
[Text]  ==> "asdfasdf dadf"
[Element] d ==> ""
[Text]  ==> "asd"
[Element] d ==> ""
[Text]  ==> "asdfasd"
[EndElement] d ==> ""
[EntityReference] uuml ==> ""
[Text]  ==> "adasdf asd  "
[EntityReference] uuml ==> ""
[Text]  ==> "  asdf asdf "
[EndElement] c ==> ""
[EndElement] a ==> ""

For WhitespaceHandling.All:
[DocumentType] a ==> "
<!ENTITY uuml "ü">
"
[Whitespace]  ==> "
"
[Element] a ==> ""
[Whitespace]  ==> "    "
[Element] b ==> ""
[Text]  ==> "  aasdf   "
[EndElement] b ==> ""
[Element] c ==> ""
[Text]  ==> "asdfasdf dadf"
[Element] d ==> ""
[Text]  ==> "asd"
[Element] d ==> ""
[Text]  ==> "asdfasd"
[EndElement] d ==> ""
[Whitespace]  ==> " "
[EntityReference] uuml ==> ""
[Text]  ==> "adasdf asd  "
[EntityReference] uuml ==> ""
[Text]  ==> "  asdf asdf "
[EndElement] c ==> ""
[Whitespace]  ==> "
"
[EndElement] a ==> ""
</output>

--
Axel Eckenberger
Software-Project-Manager
CSDB und Retrieval Software
Krauss-Maffei Wegmann GmbH & Co. KG
Tel.:   +49 89 8140-4408
e-mail: Extern.Eckenberger@kmweg.de     (work)
                axel@eckenberger.de             (private)

-----------------------------------------------------------------
The xml-dev list is sponsored by XML.org <http://www.xml.org>, an
initiative of OASIS <http://www.oasis-open.org>

The list archives are at http://lists.xml.org/archives/xml-dev/

To subscribe or unsubscribe from this list use the subscription
manager: <http://lists.xml.org/ob/adm.pl>