Abstract types in substitution group
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Key: XERCESC-1755
URL: https://issues.apache.org/jira/browse/XERCESC-1755
Project: Xerces-C++
Issue Type: Bug
Components: Validating Parser (Schema) (Xerces 1.5 or up only)
Affects Versions: 2.7.0
Environment: Unix - Linux (SUSE)
Reporter: Fernando
I wish to report a bug that, to my understanding, creates a problem of
compatibility with XML 1.0.
Let it be a substitution group, which basic type is an abstract type A. Let it
be a member B of that substitution group, which happen to be an abstract type
too. Obviously, the second abstract type B is no a final type; this second
abstract type B must be substituted by other final valid types.
The reason for including the second abstract B as part of the substituion group
for abstract type A is to somehow structure and hierarchise the whole
substitution group.
The bug I wish to report is that the second abstract type B produces a problem,
since it is not allowed to be part of any substitution group.
According to XML 1.0 recommendation (that Xerces is supposed to be complaiance
with), an abstract type present in a substitution group should not be a
problem, since there is no restriction for this.
Could someone please check if this problem with Xerces is actually a bug to be
solved in next version? Otherwise, could someone please let me know in which
part of the XML 1.0 recommendation there is any constrain to abstract types as
part of substitution groups?
Thanks a lot.
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