[DDI-SRG] DDI Q

[Wendy Thomas]

Actually DDI 1 and 2 are confused. They use xml:lang then a mistake 
introduced xml-lang and so there are both. no @lang that I am aware of. 
However, some software provides attribute lang rather than xml:lang for 
some reason.

Wendy


On Thu, 23 Jul 2009, Joachim Wackerow wrote:

> Arofan,
>
> I assumed Benjamin is talking about DDI3 because they had a workshop on
> 3. But you are right @lang is DDI 1/2.
> Anyway: @lang and xml:lang in DDI 2, and xml:lang and similar
> elements/attributes in DDI 3 should have the content of an ISO 639 code,
> right?
>
> xml:lang is defined as xs:language which is a string that conforms to
> the pattern [a-zA-Z]{1,8}(-[a-zA-Z0-9]{1,8})*. An enumerated list of ISO
> 639 two- and three-letter codes would restrict this much tighter. By the
> external genericode mechanism it would be flexible enough. The question
> is: can it be done just for the DDI language elements/attributes or also
> for xml:lang?
>
> Achim
>
> A. Gregory wrote:
>> Achim:
>>
>> Am I correct in thinking that @lang is a DDI 1/2.* thing? We actually use
>> the schema type in DDI 3.0 for all non-standard (that is, non-xml:lang)
>> attributes, because the semantic is different from xml:lang. At least, that
>> was the intention.
>>
>> There is no way to enumerate the values for xml:lang because xml supports
>> the extensions provided for in ISO 639. If we want to restrict this, we
>> could enumerate.
>>
>> If there are places in DDI 3.0 where we have incorrectly typed fields which
>> are supposed to take a standard language value, we should fix these.
>>
>> Cheers,
>>
>> Arofan
>>
>> -----Original Message-----
>> From: ddi-srg-bounces at icpsr.umich.edu
>> [mailto:ddi-srg-bounces at icpsr.umich.edu] On Behalf Of Joachim Wackerow
>> Sent: Thursday, July 23, 2009 3:18 AM
>> To: ddi-srg at icpsr.umich.edu
>> Subject: Re: [DDI-SRG] DDI Q
>>
>> Wendy,
>>
>> This looks like we need to improve the documentation for language usage.
>> ISO 639 is nowhere mentioned. A paragraph regarding the usage of
>> language could be introduced including some information like below. A
>> list of elements and attributes which use the ISO code can be added.
>>
>> A controlled vocabulary can be provided as genericode list for the
>> two-letter code and the three-letter code as well. I'm not sure if this
>> is included in the lists of the CV group. I didn't find it in the Ken's
>> email from 2009-02-13.
>>
>> I noticed a bug in archive.
>> /n1:DDIInstance/s:StudyUnit/a:Archive/a:OrganizationScheme/a:Individual/a:La
>> nguage/@ISO
>> The attribute ISO should have a value of the ISO code not
>> LanguageLevelCodeType
>>
>> This is all work for 3.2. It looks like a minor but non-validating
>> change. The addition of xml:lang for upper-level elements is anyway pending.
>>
>> Achim
>>
>> Joachim Wackerow wrote:
>>> Hi Benjamin,
>>>
>>> The attribute xml:lang is defined by the XML standard. ISO 639 is used
>>> for language codes.
>>>
>>> ISO 639 is used in DDI at several other places where a language code is
>>> required.
>>>
>>> See the official list at:
>>> http://www.loc.gov/standards/iso639-2/php/code_list.php
>>>
>>> The three-letter code list is the newer standard. Usually the two-letter
>>> code list is used when it is sufficient. The three-letter code list is
>>> probably more appropriate for your usage. Hopefully you will find all
>>> languages in this list. If not, tell me.
>>>
>>> Please note, that "New codes will no longer be added to ISO 639-1 after
>>> the publication of a revised standard unless they are also added to ISO
>>> 639-2."
>>>
>>> Details at:
>>> 4. Relationship between ISO 639-1 to ISO 639-2
>>> http://www.loc.gov/standards/iso639-2/iso639jac_n3r.html
>>>
>>> Achim
>>>
>>> benjamin clark wrote:
>>>> Hello All,
>>>>
>>>> We are slowly by slowly working on the DDI and I have 1 question for
>>>> you.  I belief the @lang attribute of many elements is suppose to be
>>>> an ISO code for the language? I am having trouble finding that list
>>>> and further what happens when the language does not exist in that list?
>>>>
>>>> thanks
>>>> benjamin d clark
>>>
>>
>>
>
>
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Wendy L. Thomas                          Phone: +1 612.624.4389
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