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Re: Metalink Download Description Format (XML)

• From: Anthony Bryan <anthonybryan@gmail.com>
• To: Felix Sasaki <felix.sasaki@fh-potsdam.de>
• Date: Wed, 8 Jul 2009 16:11:07 -0400

Felix, thanks for taking the time to look over the draft & help us
with something we're not on top of (obviously, a few RFCs behind the
times :) that you're familiar with!

I'll replace the references to ISO639-2/RFC 3066 with RFC 4646 for
now, & try to keep on top of when draft-ietf-ltru-4646bis gets an RFC
number.

Do you know if our schema needs to be modified beyond substituting RFC
numbers in there?

   # As defined in RFC 3066
   metalinkLanguageTag = xsd:string {
      pattern = "[A-Za-z]{1,8}(-[A-Za-z0-9]{1,8})*"
   }

Thanks!

PS - It also looks like there's an updated version of ISO3166-1 too.

   [ISO3166-1]
              International Organization for Standardization, "ISO 3166-
              1:2006.  Codes for the representation of names of
              countries and their subdivisions -- Part 1: Country
              codes", November 2006.


On Wed, Jul 8, 2009 at 3:32 PM, Felix Sasaki<felix.sasaki@fh-potsdam.de> wrote:
> Not the main topic of this draft, but you are refering to ISO693-2 for the
> metalink:language element, and define the "metalinkLanguageTag" pattern
> terms of RFC 3066. You should define both in terms of RFC 4646, the current
> RFC for BCP 47 (the BCP for language identifiers). Actually a successor for
> RFC 4646 has just been approved
> http://tools.ietf.org/html/draft-ietf-ltru-4646bis-23
> which soon will get a new RFC number.
>
> Felix
>
> 2009/7/9 Anthony Bryan <anthonybryan@gmail.com>
>>
>> Progress continues on the Metalink ID (
>> http://tools.ietf.org/html/draft-bryan-metalink ).
>>
>> With guidance from Eran Hammer-Lahav, we are focusing on the Metalink
>> XML file format. We've currently addressed all feedback, and welcome
>> more.
>>
>>  Metalink is an XML-based document format that describes a file or
>>  lists of files to be added to a download queue.  Lists are composed
>>  of a number of files, each with an extensible set of attached
>>  metadata.  For example, each file can have a description, checksum,
>>  and list of URIs that it is available from.
>>
>>  The primary use case that Metalink addresses is the description of
>>  downloadable content in a format so download agents can act
>>  intelligently and recover from common errors with little or no user
>>  interaction necessary.  These errors can include multiple servers
>>  going down and data corrupted in transmission.
>>
>> Other features:
>>  Structured information about downloads that can be used by search
>> engines, etc.
>>  Increased security (checksums, signatures).
>>  Can combine FTP and HTTP with optional Peer-to-peer (P2P, shared
>> bandwidth).
>>  Add multiple files to a download queue.
>>  Transparent usage where people can get the benefits of Metalink
>> without even knowing they're using it.

-- 
(( Anthony Bryan ... Metalink [ http://www.metalinker.org ]
  )) Easier, More Reliable, Self Healing Downloads

• References:
  • Metalink Download Description Format (XML)
    • From: Anthony Bryan <anthonybryan@gmail.com>