[DFDL-WG] Review/Feedback wanted on proposal: Data Streaming for base64 and other Layered Transformations

[Mike Beckerle]

Never mind that prior one. I've simplified it even further. (The "super
simplified" one.)


https://cwiki.apache.org/confluence/display/DAFFODIL/Proposal%3A+Data+Layering+for+base64+-+Super+Simplified

Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology |
www.tresys.com
Please note: Contributions to the DFDL Workgroup's email discussions are
subject to the OGF Intellectual Property Policy
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On Fri, Apr 6, 2018 at 3:14 PM, Mike Beckerle <mbeckerle.dfdl at gmail.com>
wrote:

> On looking into implementation complexity I've come up with
> simplifications that don't reduce expressive power at all, but massively
> simplify implementation (and documentation, and testing...) burdens for
> this proposed feature.
>
>
> https://cwiki.apache.org/confluence/display/DAFFODIL/
> Proposal%3A+Data+Layering+for+base64+-+Simplified
>
> Feedback is very welcome.
>
> Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology |
> www.tresys.com
> Please note: Contributions to the DFDL Workgroup's email discussions are
> subject to the OGF Intellectual Property Policy
> <http://www.ogf.org/About/abt_policies.php>
>
>
> On Thu, Feb 15, 2018 at 10:44 AM, Mike Beckerle <mbeckerle.dfdl at gmail.com>
> wrote:
>
>> We have a great deal of demand for the ability to describe data formats
>> that include layered transformations - that is, regions within the data
>> that need to be algorithmically transformed before parsing and after
>> unparsing.
>>
>> The IETF data formats make extensive use of line folding, base64, etc.
>> Many formats allow compressed payloads. All these are examples of
>> "layering" where a region of the data stream can be identified,
>> algorithmically transformed, and then subsequently further parsed. (The
>> inverse process for unparsing obviously.)
>>
>> Our draft proposal, that we are hoping to implement in Daffodil, is here:
>>
>> https://cwiki.apache.org/confluence/display/DAFFODIL/Proposa
>> l%3A+Data+Streaming+for+Base64+and+other+Layered+Transformations
>>
>> Any feedback on this is very welcome, and can be addressed to dfdl-wg
>> mailing list.
>>
>> Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology |
>> www.tresys.com
>> Please note: Contributions to the DFDL Workgroup's email discussions are
>> subject to the OGF Intellectual Property Policy
>> <http://www.ogf.org/About/abt_policies.php>
>>
>>
>
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