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Parsing the value of the up relationship is difficult with the multiple words. If trying to build breadcrumbs from a list of <link rel="up[...]> is hard and requires recursion and looping. A simple syntax like "up;3" that would define the up relationship and the depth instead of "up up up" would be much simple to parse.
EDITOR'S RESPONSE: This is an Editor's Response to your comment. If you are satisfied with this response, please change the state of this bug to CLOSED. If you have additional information and would like the editor to reconsider, please reopen this bug. If you would like to escalate the issue to the full HTML Working Group, please add the TrackerRequest keyword to this bug, and suggest title and text for the tracker issue; or you may create a tracker issue yourself, if you are able to do so. For more details, see this document: http://dev.w3.org/html5/decision-policy/decision-policy.html Status: Rejected Change Description: no spec change Rationale: That seems like a bug in XSLT, not a bug in HTML.
mass-move component to LC1