[Doxygen-users] Mysterious singleton in .tag file causes warnings

[didje <dia...@pd...>]

Hi,
In our system, we have a namespace ABC, which refers to std classes such as
List, Deque etc

I generate a .tag file in the library TestLib, which uses some of these
classes.

When I generated that .tag file with 1.8.7, I saw the following in the .tag
file:

	<compound kind="class">
		<name>ABC::Deque</name>
		<filename>classABC_1_1Deque.html</filename>
		<templarg></templarg>
		<member kind="function">
			<type></type>
			<name>Deque</name>
			<anchorfile>classABC_1_1Deque.html</anchorfile>
			<anchor>fghjfghjfghjygjfghjfghj</anchor>
			<arglist>()</arglist>
		</member>
	</compound>
However, using the same sources, I generated the .tag file using 1.8.8 and
now the line is as follows:
	<compound kind="singleton">
		<name>ABC::Deque</name>
		<filename>classABC_1_1Deque.html</filename> 
		<templarg></templarg>
		<member kind="function">
			<type></type>
			<name>Deque</name>
			<anchorfile>classABC_1_1Deque.html</anchorfile>
			<anchor>fghjfghjfghjygjfghjfghj</anchor>
			<arglist>()</arglist>
		</member>
	</compound>

I don't know what made the compound kind change to a "singleton".

Various other libraries access the TestLib.tag file in the TestLib library.
However, when they do so, warning messages appear, as follows:
~/doc/library/TestLib/TestLib.tag:1655: warning: Unknown compound attribute
`singleton' found!
~/doc/library/TestLib/TestLib.tag:1656: warning: Unexpected tag `name' found
~/doc/library/TestLib/TestLib.tag:1657: warning: Unexpected tag `filename'
found
~/doc/library/TestLib/TestLib.tag:1658: warning: Unexpected tag `templarg'
found
~/doc/library/TestLib/TestLib.tag:1705: warning: Unexpected tag `member'
found
~/doc/library/TestLib/TestLib.tag:1706: warning: tag `compound' was not
expected!

Why is the class Deque being called a singleton in 1.8.8, but was not in
1.8.7?
Also, why are there warning messages for the singleton in 1.8.8 ? 

Thanks for any help.



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