The following comment has been added to this issue:
Author: Hans Gilde
Created: Tue, 24 Aug 2004 4:19 PM
Body:
So, when you transform your XML document, it's supposed to strip out the original
comments. If you want comments in your output, you have to put them in CDATA in the
original.
How about this:
By default, CopyOf won't output lexical data. If you want to access the comments in
this mode, you have to use "string($doc/a/comment())"
We add in an attribute "lexical" that will cause CopyOf to output lexical information
along with the content. In this mode, you should expect the "double entity" issue and
any other issue related to outputting lexical data.
It's a little inconvenient for the user but the underlying SAX/dom4j classes work this
way.
I'll submit the patch tomorrow unless you hate it.
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View this comment:
http://issues.apache.org/jira/browse/JELLY-28?page=comments#action_37438
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View the issue:
http://issues.apache.org/jira/browse/JELLY-28
Here is an overview of the issue:
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Key: JELLY-28
Summary: Bad entity processing
Type: Bug
Status: Open
Priority: Blocker
Project: jelly
Components:
core / taglib.core
Fix Fors:
1.0-beta-4
Assignee: james strachan
Reporter: Incze Lajos
Created: Thu, 30 Jan 2003 7:44 PM
Updated: Tue, 24 Aug 2004 4:19 PM
Environment: No special environment.
Description:
Have a file, name it a.xml with this content:
-----------------------------
<?xml version="1.0"?>
<!DOCTYPE a [
<!ENTITY x "y">
]>
<a>&x;</a>
-----------------------------
Run the below simple (maven) jelly script:
-----------------------------
<project default="java:jar"
xmlns:j="jelly:core"
xmlns:x="jelly:xml">
<goal name="emnl:test">
<x:parse var="doc" xml="a.xml"/>
<echo><x:copyOf select="$doc"/></echo>
</goal>
</project>
-----------------------------
The result will be this:
-----------------------------
....
emnl:test:
[echo] <?xml version="1.0" encoding="UTF-8"?>
<a>&x;y</a>
BUILD SUCCESSFUL
-----------------------------
I'm aware of the fact that the bug originally comes from dom4j.
The below dom4j program fragment
-----------------------------
....
SAXReader xmlReader = new SAXReader();
Document doc = xmlReader.read("a.xml");
XMLWriter writer = new XMLWriter(System.out);
writer.write(doc);
writer.flush();
....
-----------------------------
will output this result:
-----------------------------
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE a><a>&x;</a>
-----------------------------
which is bad (not even well-formed). I've filed this issue
at the dom4j bugtracker
(http://sourceforge.net/tracker/?group_id=16035&atid=116035)
under the number 676427, with some notes one the possible
resolution.
But as we can see, the jelly xml tag adds a twist to the dom4j bug,
it inserts both the entity and the entity value into the tag.
Thanks, incze
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