Variant tags for sl-rozaj: History and preliminaries Draft of
cewcathar at hotmail.com
Thu Jun 14 16:06:15 CEST 2007
Hi, +1 to Hans' request.
han.steenwijk at unipd.it han.steenwijk at unipd.it
Tue Jun 12 05:06:51 CEST 2007
>The Prefix fields enumerate
>exhaustively which language tags can be formed, which is not so very
>generative. Even the order of the variant tags within the language tag is
>determined by the Prefix fields.
. . .
There are already variants that are formed using just dates (1901 and 1996)
in use for German, so I can see no reason to object to the 1994 variant[s]
(if there is no likeliness of misuse of these subtags -- for example, cases
of other languages with different orthographies which also have 1994 dates
-- I do not know of such cases however).
Thanks for spelling the prefixes out clearly.
>With this information in the Prefix fields, the implementer can still
>generate "sl-IT-rozaj-1994" and "sl-IT-rozaj-biske-1994". However, this is
>highly redundant, as the whole of the Resian speech territory is contained
Right; the IT subtag, as I understand it, since it is redundant, would not
be used normally to form tags; if it were used, I understood that the search
engines would normally match up sl-rozaj-1994 and sl-IT-rozaj-1994 ???
(However, Doug Ewell noted to me that, in fact, the two tags above, the
first without [IT] and the second with [IT] might not be quite
"identical, from the standpoint of matching" because "[t]here is no such
thing as 'Suppress-Region' to tell a matching process that 'sl-rozaj-1994'
and 'sl-IT-rozaj-1994' can be assumed to be equivalent."
There's more information on matching (from a draft, not a final document,
a request for documents tagged,
will normally also turn up all documents tagged
However, a request for documents tagged,
will not turn up all documents tagged,
"Filtering is used to select the set of content that matches a given
prefix. It is called 'filtering' because this set of content may
contain no items at all or it may return an arbitrary number of
matching items--as many as match the language range used to specify
the items . . .
". . . For example, if the language range
is "de-CH", one might see matching content with the tag "de-CH-1996"
but one will never see a match with the tag 'de'."
However, there is also something called "Scored Filtering" apparently, &
which I do not completely understand, which would still allow the tags to
have a scored match even if an exact match were not possible.
But this is a draft document; so I do not know these filtering methods are
normally implemented or not.
--C. E. Whitehead
cewcathar at hotmail.com
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