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microdata; hixie: Clarify the role of vocab specifications w.r.t. itemid=''. (whatwg r6279)

From: poot <cvsmail@w3.org>
Date: Thu, 07 Jul 2011 19:00:21 -0400
To: public-html-diffs@w3.org
Message-Id: <E1QexYT-000637-KB@jay.w3.org>
microdata; hixie: Clarify the role of vocab specifications w.r.t.
itemid=''. (whatwg r6279)

http://dev.w3.org/cvsweb/html5/md/Overview.html?r1=1.139&r2=1.140&f=h
http://html5.org/tools/web-apps-tracker?from=6278&to=6279

===================================================================
RCS file: /sources/public/html5/md/Overview.html,v
retrieving revision 1.139
retrieving revision 1.140
diff -u -d -r1.139 -r1.140
--- Overview.html	7 Jul 2011 22:53:59 -0000	1.139
+++ Overview.html	7 Jul 2011 22:59:58 -0000	1.140
@@ -1071,7 +1071,13 @@
   specified on elements that do not have both an <code title="attr-itemscope"><a href="#attr-itemscope">itemscope</a></code> attribute and an <code title="attr-itemtype"><a href="#attr-itemtype">itemtype</a></code> attribute specified, and must
   not be specified on elements with an <code title="attr-itemscope"><a href="#attr-itemscope">itemscope</a></code> attribute whose <code title="attr-itemtype"><a href="#attr-itemtype">itemtype</a></code> attribute specifies a
   vocabulary that does not <a href="#support-global-identifiers-for-items">support global identifiers for
-  items</a>, as defined by that vocabulary's specification.<hr><p>Elements with an <code title="attr-itemscope"><a href="#attr-itemscope">itemscope</a></code>
+  items</a>, as defined by that vocabulary's specification.<p>The exact meaning of a <a href="#global-identifier">global identifier</a> is
+  determined by the vocabulary's specification. It is up to such
+  specifications to define whether multiple items with the same global
+  identifier (whether on the same page or on different pages) are
+  allowed to exist, and what the processing rules for that vocabulary
+  are with respect to handling the case of multiple items with the
+  same ID.<hr><p>Elements with an <code title="attr-itemscope"><a href="#attr-itemscope">itemscope</a></code>
   attribute may have an <dfn id="attr-itemref" title="attr-itemref"><code>itemref</code></dfn> attribute specified,
   to give a list of additional elements to crawl to find the
   name-value pairs of the <a href="#concept-item" title="concept-item">item</a>.<p>The <code title="attr-itemref"><a href="#attr-itemref">itemref</a></code> attribute, if
Received on Thursday, 7 July 2011 23:00:22 GMT

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