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Subject: ISSUE: allow empty layers in 2.0?
- From: Lofton Henderson <lofton@rockynet.com>
- To: cgmo-webcgm@lists.oasis-open.org
- Date: Thu, 09 Jun 2005 18:00:22 -0600
From Dieter's comments:
http://lists.oasis-open.org/archives/cgmo-webcgm/200506/msg00021.html
ISSUE: allow empty layers in 2.0?
3.2.1.2
The content of a layer should allow for empty layers. BTW: the
list shown for grobjects doesn’t mention empty grobjects either.
[...]
3.3
Change
<!ELEMENT layer (grobject | para |
grnode | gdata)+ >
to
<!ELEMENT layer (grobject | para | grnode |
gdata)* >
to allow for empty layers
The DTD was normative in 1.0. It clearly did NOT allow for empty
layers. Given that we allow empty grobjects, it seems harmless to
allow empty layers. Any valid 1.0 file would still be valid
2.0. So we should put the question to the TC.
Therefore:
RECOMMENDATION: change 2.0 to allow empty layers.
Regards,
-Lofton.
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