[XERCESC-498] External entities cannot be referred properly

• Type: Bug
• Status: Resolved
• Resolution: Incomplete
• Affects Version/s: 1.7.0
• Component/s: Validating Parser (DTD)
• Environment: Operating System: Windows NT/2K; Platform: PC
• Bugzilla Id: 9907
• Assignee: Unassigned
• Reporter: Arindam Chandra
• Created: 17/Jun/02 12:23
• Updated: 16/Feb/11 23:39
• Resolved: 09/Apr/04 16:16

Description

I am encountering some problems in refering external entities from an xml
file using Xerces C++ parser version 1.7.0. I am working with Windows NT. The
problems are described below,-

In the refered.xml there is an element refered-elem. From the refering.xml I am
referring to this element as

<pls>&refered-elem;</pls>

and I have declared this entity in testref.dtd (refered.xml refers to this DTD)
as

<!ENTITY refered-elem SYSTEM "refered.xml">
refered.xml and refering.xml are located under the same directory in the local
file system. When I am running the Xerces java parser with these files I'm
getting the expected output. But when I run the Xerces C++ parser through
SAX2Count.cpp (provided as a sample with the downloaded parser), I am getting
the following error,-
Fatal Error at file E:\Arindam\CPPTests\xerces-c-src1_7_0\xerces-c-src1_7_0
\Build\Win32\VC6\Release\refered.xml, line 2, char 2
Message: Expected comment or CDATA

Seems that it can't recognize the document type definition <!DOCTYPE refered-
elem SYSTEM "testref1.dtd">. One point to note here is that we really don't
need any DTD for refered.xml . If I remove this DOCTYPE line from refered.xml,
it works fine with the java parser. But with the C++ parser it gives the
following errors,-

Error at file E:\Arindam\CPPTests\xerces-c-src1_7_0\xerces-c-src1_7_0
\Build\Win32\VC6\Release\refered.xml, line 3, char 15
Message: Unknown element 'refered-elem'

Error at file E:\Arindam\CPPTests\xerces-c-src1_7_0\xerces-c-src1_7_0
\Build\Win32\VC6\Release\refering.xml, line 17, char 27
Message: Element 'refered-elem' is not valid for content model: '(#PCDATA)'

Seems that the parser is looking for a DTD for refered.xml.