[uf-discuss] multi-word tags
andy at pigsonthewing.org.uk
Tue Sep 25 06:12:01 PDT 2007
The rel-tag spec says:
Spaces can be encoded either as + or %20.
(I think that "can" ought to be an RFC2119 "SHOULD", BTW; other specs
may similarly need to have RFC2119 applied more rigorously).
However, I see sites, in the wild, using dashes (hyphens) and others
which encode spaces as underscores (e.g. del.icio.us; Wikipedia and
other MediaWiki sites). See previously-compiled evidence, at:
Indeed, pages on the microformats wiki use hyphens in URLs which would
seem suitable for use as tag spaces:
existing rel values
Operator, for example, regards:
as three distinct tags, and does not discard them as duplicates (see
test page at <http://www.westmidlandbirdclub.com/tag-test.htm> ).
What do other parsers and implementations do? Should the spec be
altered, so that the above, and:
are all deemed equal?
Likewise, for that matter:
This might be achieved by saying that spaces in tags SHOULD be encoded
as encoded as either + or %20, but that parsers MUST treat dashes and
underscores as spaces.
Or we could simply say that spaces in tags SHOULD be encoded as encoded
as +, %20, - or _
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