[Help]writing SAX Transformer

2004-02-27 Thread roy huang 
I wrote a transformer extend AbstractSAXTransformer to transform woody form define 
file base on action and state.
The transformer do two thing:
1.turn wd:field to wd:output for read-only
2.delete some define widgets under certain condition.I use this.startRecording(); 
this.endRecording to delete the widget .
Question 1:
It looks fine when I use browser to see the xml output.But if I check the source ,I 
found if the original xml is like:
?xml version=1.0 encoding=utf-8?
root
a
a
/a
b
b
/b
c
c
/c
/root 
if I delete a b using startRecording the source code turns into:
?xml version=1.0 encoding=utf-8?
root


c
c
/c
/root
left many blank and tab.How to solve it or I am in the wrong way?
Question 2:
in the transformer I also and some xinclude tag,like:
   attr.addAttribute(
http://www.w3.org/2001/XInclude;,
href,
href,
CDATA,
flowUri);
   super.startTransformingElement(, include, xi:include, attr);
   super.endTransformingElement(, include, xi:include);
   attr.clear();
the xml is fine,but can't be transform by XInclude transformer,but if I save the xml 
and use an another pipeline to use the xml in the disk,it can be transform by Xinclude.
If I use a xslt file to transform it first ,it can also transform by Xinclude.
So I believe it my transformer's problem,can you help?

Thanks advanced!

Roy Huang

Re: [Help]writing SAX Transformer

2004-02-27 Thread J.Pietschmann 
roy huang wrote:
...
 root
 a
 a
 /a
 b
 b
 /b
 c
 c
 /c
 /root 
 if I delete a b using startRecording the source code turns into:
 ?xml version=1.0 encoding=utf-8?
 root
 
 
 c
 c
 /c
 /root
 left many blank and tab. How to solve it or I am in the wrong way?
The whitespace is already there in the source (look
carefully). I don't think it hurts, and deleting it
selectively is not all that easy.

 Question 2:
 in the transformer I also and some xinclude tag,like:
attr.addAttribute(
 http://www.w3.org/2001/XInclude;,
 href,
 href,
 CDATA,
 flowUri);
super.startTransformingElement(, include, xi:include, attr);
super.endTransformingElement(, include, xi:include);
attr.clear();
 the xml is fine,but can't be transform by XInclude transformer,

I think you missed the namespace for the xi:include element, but
added the href attribute in the namespace instead. Try
attr.addAttribute(
 ,
 href,
 href,
 CDATA,
 flowUri);
super.startTransformingElement(http://www.w3.org/2001/XInclude;,
 include, xi:include, attr);
super.endTransformingElement(http://www.w3.org/2001/XInclude;,
 include, xi:include);
instead.
Dealing with namespaced elements and attributes in APIs is
tricky, study the topic carefully.

J.Pietschmann