Hi !

I posted a bug to Bugzilla at 2002-03-05 and confirmed that the problem
persists in 1.7.0 at 2002-03-14. Until today the bug is still marked as
new, although it can easily be reproduced. Has anybody an idea of the
typical time-frame for a response in xerces-c ?

The problem is a wrong error-line resulting for an element which occurs
at the wrong position in a sequence. I did some testing, which shows
that the reported error-position is the closing tag of the next higher
hierarchie. Some debugging in XMLScanner.cpp, line 1851 shows, that the
index of the offending element is known (variable res) but the reported
line-position results from the last pushed reader.

 
In case somebody likes to have a look at it:

Using the following simple schema

<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XML Spy v4.3 U (http://www.xmlspy.com) by Ulrich Arnold

(Beratung - Systemanalyse) -->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; 
elementFormDefault="qualified" attributeFormDefault="unqualified">
        <xs:element name="Root">
                <xs:complexType>
                        <xs:sequence>
                                <xs:element ref="A"/>
                                <xs:element ref="B"/>
                                <xs:element ref="C"/>
                                <xs:element ref="D"/>
                        </xs:sequence>
                </xs:complexType>
        </xs:element>
        <xs:element name="A"/>
        <xs:element name="B"/>
        <xs:element name="C"/>
        <xs:element name="D"/>
</xs:schema>

and this xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XML Spy v4.3 U (http://www.xmlspy.com) by Ulrich Arnold

(Beratung - Systemanalyse) -->
<!--Sample XML file generated by XML Spy v4.3 U
(http://www.xmlspy.com)--> <Root
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
xsi:noNamespaceSchemaLocation="Bug.xsd">
        <A>
                aa
                aa
                aa
        </A>
        <X>
                bb
                bb
                bb
        </X>
        <C>
                cc
                cc
                cc
        </C>
        <D>
                dd
                dd
                dd
        </D>
</Root>

xerces emits the following messages

Error at file "d:\xml\Bugs\bugx.xml", line 10, column 5
   Message: Unknown element 'X'
Error at file "d:\xml\Bugs\bugx.xml", line 25, column 8
   Message: Element 'X' is not valid for content model: '(A,B,C,D)'

where line 10 pinpoints the problem. But if the element is known, but
not ok at 
this position as in 

<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XML Spy v4.3 U (http://www.xmlspy.com) by Ulrich Arnold

(Beratung - Systemanalyse) -->
<!--Sample XML file generated by XML Spy v4.3 U
(http://www.xmlspy.com)--> <Root
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
xsi:noNamespaceSchemaLocation="Bug.xsd">
        <A>
                aa
                aa
                aa
        </A>
        <D>
                bb
                bb
                bb
        </D>
        <C>
                cc
                cc
                cc
        </C>
        <D>
                dd
                dd
                dd
        </D>
</Root>

the only message is

Error at file "d:\xml\Bugs\bugd.xml", line 25, column 8
   Message: Element 'D' is not valid for content model: '(A,B,C,D)'

which does not lead to the problem in line 10.


Thanks Uli


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