Re: [basex-talk] Yaml serialization

2020-08-17 Thread Andreas Mixich
Am 17.08.2020 um 11:55 schrieb Christian Grün:
> out why before we follow this path). Has anyone of you already worked
> with XML representations of YAML?

Joe Wicentowski[1] did something here [2]. But I did not use it, yet.

[1]: https://github.com/joewiz 
[2]: https://gist.github.com/joewiz/ed624a43cb6f9e15cc44b6e30553ad5e

-- 
Goody Bye, Minden jót, Mit freundlichen Grüßen,
Andreas Mixich



Re: [basex-talk] Yaml serialization

2020-08-17 Thread Christian Grün
Hi Marco, Hans-Jürgen, Martin, Fabrice,

I had a look at the YAML spec [1], and I noticed it’s somewhat more
bulky than the JSON spec [2]. In addition, I checked out the YAML to
XML conversion of FasterXML. It seems to handle the basic cases, but
e.g. cannot process lists, comments or references. Maybe I’m not
properly using it, though. I have attached a very basic Eclipse
project for those who want to have a closer look.

My guess is that there is no existing implementation of the official
XML binding draft available [3] (and it might be interesting to find
out why before we follow this path). Has anyone of you already worked
with XML representations of YAML?

Best,
Christian

[1] https://yaml.org/spec/1.2/spec.html
[2] https://tools.ietf.org/html/rfc8259
[3] https://yaml.org/xml


On Wed, Aug 12, 2020 at 7:21 PM Christian Grün
 wrote:
>
> Hans-Jürgen, thanks for you assessment. I see that there may be no real need 
> for a JsonML equivalent for YAML. And my assumption is that the binding from 
> yaml.org my be the most appropriate solution for now. Similar to our JSON 
> mapper, it uses underscore element names to represent arrays.
>
>
>
>
> Hans-Juergen Rennau  schrieb am Mi., 12. Aug. 2020, 18:59:
>>
>> Remark: support for a roundtrip-able XML representation of YAML would 
>> consolidate BaseX's great position as a data integration platform, further 
>> increasing the number of continents (mediatypes) which can be travelled on 
>> the highway of XPath (XML, JSON, CSV, HTML, YAML).
>>
>> In comparison, I think, YAML representation of arbitrary XML would be a 
>> nicety without strategic significance.
>>
>> Hans-Jürgen
>>
>> Am Mittwoch, 12. August 2020, 18:38:10 MESZ hat Christian Grün 
>>  Folgendes geschrieben:
>>
>>
>> I was wondering if you can successfully serialize any arbitrary XML document 
>> to a YAML representing, ideally without losing information (attributes, 
>> comments, etc.), and convert the result back to the original XML 
>> representation.
>>
>> I would guess that YAML to XML conversions is easier.
>>
>> Apart from that, it would surely be possible to write a little XQuery module 
>> that performs all the conversions (just a matter of time?).
>>
>>
>>
>>
>> Marco Lettere  schrieb am Mi., 12. Aug. 2020, 18:31:
>>
>>
>> > @Marco: Do you know which conversions are provided by FasterXML:
>> > arbitrary XML → YAML, arbitrary YAML → XML, or both? If the underlying
>> > conversion rules are promising, we could include them a 'fasterxml'
>> > format in BaseX (similar to the 'jsonml' format).
>> >
>> As far as I can understand from the docs and the code on github there
>> Jackson is a sort of hub with several dataformat modules which are able
>> to parse and serialize from the various formats.
>>
>> I don't know whether, with the term arbitrary, you mean to be able to
>> provide your own syntax for the XML serialization. In this case I am not
>> sure.
>>
>> M.
>>
<>

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invoice.yaml
Description: Binary data


Re: [basex-talk] Yaml serialization

2020-08-12 Thread Christian Grün
Hans-Jürgen, thanks for you assessment. I see that there may be no real
need for a JsonML equivalent for YAML. And my assumption is that the
binding from yaml.org my be the most appropriate solution for now. Similar
to our JSON mapper, it uses underscore element names to represent arrays.




Hans-Juergen Rennau  schrieb am Mi., 12. Aug. 2020, 18:59:

> Remark: support for a roundtrip-able XML representation of YAML would
> consolidate BaseX's great position as a data integration platform, further
> increasing the number of continents (mediatypes) which can be travelled on
> the highway of XPath (XML, JSON, CSV, HTML, YAML).
>
> In comparison, I think, YAML representation of arbitrary XML would be a
> nicety without strategic significance.
>
> Hans-Jürgen
>
> Am Mittwoch, 12. August 2020, 18:38:10 MESZ hat Christian Grün <
> christian.gr...@gmail.com> Folgendes geschrieben:
>
>
> I was wondering if you can successfully serialize any arbitrary XML
> document to a YAML representing, ideally without losing information
> (attributes, comments, etc.), and convert the result back to the original
> XML representation.
>
> I would guess that YAML to XML conversions is easier.
>
> Apart from that, it would surely be possible to write a little XQuery
> module that performs all the conversions (just a matter of time?).
>
>
>
>
> Marco Lettere  schrieb am Mi., 12. Aug. 2020, 18:31:
>
>
> > @Marco: Do you know which conversions are provided by FasterXML:
> > arbitrary XML → YAML, arbitrary YAML → XML, or both? If the underlying
> > conversion rules are promising, we could include them a 'fasterxml'
> > format in BaseX (similar to the 'jsonml' format).
> >
> As far as I can understand from the docs and the code on github there
> Jackson is a sort of hub with several dataformat modules which are able
> to parse and serialize from the various formats.
>
> I don't know whether, with the term arbitrary, you mean to be able to
> provide your own syntax for the XML serialization. In this case I am not
> sure.
>
> M.
>
>


Re: [basex-talk] Yaml serialization

2020-08-12 Thread Hans-Juergen Rennau
 Remark: support for a roundtrip-able XML representation of YAML would 
consolidate BaseX's great position as a data integration platform, further 
increasing the number of continents (mediatypes) which can be travelled on the 
highway of XPath (XML, JSON, CSV, HTML, YAML).
In comparison, I think, YAML representation of arbitrary XML would be a nicety 
without strategic significance.

Hans-Jürgen

Am Mittwoch, 12. August 2020, 18:38:10 MESZ hat Christian Grün 
 Folgendes geschrieben:  
 
 I was wondering if you can successfully serialize any arbitrary XML document 
to a YAML representing, ideally without losing information (attributes, 
comments, etc.), and convert the result back to the original XML representation.
I would guess that YAML to XML conversions is easier.

Apart from that, it would surely be possible to write a little XQuery module 
that performs all the conversions (just a matter of time?).



Marco Lettere  schrieb am Mi., 12. Aug. 2020, 18:31:


> @Marco: Do you know which conversions are provided by FasterXML:
> arbitrary XML → YAML, arbitrary YAML → XML, or both? If the underlying
> conversion rules are promising, we could include them a 'fasterxml'
> format in BaseX (similar to the 'jsonml' format).
>
As far as I can understand from the docs and the code on github there 
Jackson is a sort of hub with several dataformat modules which are able 
to parse and serialize from the various formats.

I don't know whether, with the term arbitrary, you mean to be able to 
provide your own syntax for the XML serialization. In this case I am not 
sure.

M.


  

Re: [basex-talk] Yaml serialization

2020-08-12 Thread Christian Grün
I was wondering if you can successfully serialize any arbitrary XML
document to a YAML representing, ideally without losing information
(attributes, comments, etc.), and convert the result back to the original
XML representation.

I would guess that YAML to XML conversions is easier.

Apart from that, it would surely be possible to write a little XQuery
module that performs all the conversions (just a matter of time?).




Marco Lettere  schrieb am Mi., 12. Aug. 2020, 18:31:

>
> > @Marco: Do you know which conversions are provided by FasterXML:
> > arbitrary XML → YAML, arbitrary YAML → XML, or both? If the underlying
> > conversion rules are promising, we could include them a 'fasterxml'
> > format in BaseX (similar to the 'jsonml' format).
> >
> As far as I can understand from the docs and the code on github there
> Jackson is a sort of hub with several dataformat modules which are able
> to parse and serialize from the various formats.
>
> I don't know whether, with the term arbitrary, you mean to be able to
> provide your own syntax for the XML serialization. In this case I am not
> sure.
>
> M.
>
>


Re: [basex-talk] Yaml serialization

2020-08-12 Thread Marco Lettere




@Marco: Do you know which conversions are provided by FasterXML:
arbitrary XML → YAML, arbitrary YAML → XML, or both? If the underlying
conversion rules are promising, we could include them a 'fasterxml'
format in BaseX (similar to the 'jsonml' format).

As far as I can understand from the docs and the code on github there 
Jackson is a sort of hub with several dataformat modules which are able 
to parse and serialize from the various formats.


I don't know whether, with the term arbitrary, you mean to be able to 
provide your own syntax for the XML serialization. In this case I am not 
sure.


M.



Re: [basex-talk] Yaml serialization

2020-08-12 Thread Christian Grün
The XML binding from yaml.org might be a good start
(https://yaml.org/xml). I have opened a little issue for a future YAML
Module [1].

@Marco: Do you know which conversions are provided by FasterXML:
arbitrary XML → YAML, arbitrary YAML → XML, or both? If the underlying
conversion rules are promising, we could include them a 'fasterxml'
format in BaseX (similar to the 'jsonml' format).

@Martin: Thanks for the link to Norm’s demo, I’ll have a look at it.

[1] https://github.com/BaseXdb/basex/issues/1921


On Wed, Aug 12, 2020 at 2:47 PM Marco Lettere  wrote:
>
> Hm, not sure but maybe FasterXML's Jackson? It supports alternative non JSON 
> data formats among which YAML, XML.
> But maybe that one is a huge dependency.
> M.
>
> On 12/08/20 12:38, Christian Grün wrote:
>
> Hi Marco, hi Fabrice,
>
> YAML serialization would be a nice feature indeed.
>
> Are you aware of existing (ideally bidirectional) mappings that would be 
> appropriate for general use?
>
> Cheers
> Christian
>
>
>
>
>
> Marco Lettere  schrieb am Mi., 12. Aug. 2020, 12:04:
>>
>> Dear BaseX team,
>>
>> just out of curiosity, could you imagine what kind of effort it would be
>> to provide YAML as another serialization method for BaseX in addition to
>> XML, HTML, JSON, CSV?
>>
>> The datamodel seems pretty close to the JSON one so maybe a very similar
>> transformation to XML could be implemented ...
>>
>> Ciao,
>>
>> Marco.
>>
>


Re: [basex-talk] Yaml serialization

2020-08-12 Thread Marco Lettere
Hm, not sure but maybe FasterXML's Jackson? It supports alternative non 
JSON data formats among which YAML, XML.

But maybe that one is a huge dependency.
M.

On 12/08/20 12:38, Christian Grün wrote:

Hi Marco, hi Fabrice,

YAML serialization would be a nice feature indeed.

Are you aware of existing (ideally bidirectional) mappings that would 
be appropriate for general use?


Cheers
Christian





Marco Lettere mailto:m.lett...@gmail.com>> 
schrieb am Mi., 12. Aug. 2020, 12:04:


Dear BaseX team,

just out of curiosity, could you imagine what kind of effort it
would be
to provide YAML as another serialization method for BaseX in
addition to
XML, HTML, JSON, CSV?

The datamodel seems pretty close to the JSON one so maybe a very
similar
transformation to XML could be implemented ...

Ciao,

Marco.





Re: [basex-talk] Yaml serialization

2020-08-12 Thread Martin Honnen

Am 12.08.2020 um 12:38 schrieb Christian Grün:


YAML serialization would be a nice feature indeed.

Are you aware of existing (ideally bidirectional) mappings that would be
appropriate for general use?


At XML Prague, Norm did a demo of casting YAML to JSON as described in
https://so.nwalsh.com/2020/02/15/xproc-30, he said there he has that
built in into his (some day) upcoming XProc 3 processor. I am not sure
the other direction is supported as well and while there is some
repository containing "Calabash 2" doing some cast
https://github.com/ndw/xmlcalabash2/blob/84b06fbd8331797d1b91f96646d4e55dd9ab26a9/src/main/scala/com/xmlcalabash/steps/CastContentType.scala#L287
I have no idea it reflects the approach used in the demo or whether it
makes sense for any general YAML to JSON mapping.



Re: [basex-talk] Yaml serialization

2020-08-12 Thread Christian Grün
Hi Marco, hi Fabrice,

YAML serialization would be a nice feature indeed.

Are you aware of existing (ideally bidirectional) mappings that would be
appropriate for general use?

Cheers
Christian





Marco Lettere  schrieb am Mi., 12. Aug. 2020, 12:04:

> Dear BaseX team,
>
> just out of curiosity, could you imagine what kind of effort it would be
> to provide YAML as another serialization method for BaseX in addition to
> XML, HTML, JSON, CSV?
>
> The datamodel seems pretty close to the JSON one so maybe a very similar
> transformation to XML could be implemented ...
>
> Ciao,
>
> Marco.
>
>


Re: [basex-talk] Yaml serialization

2020-08-12 Thread ETANCHAUD Fabrice
Dear all,

I agree with Marco,
Yaml serialization/deserialization would be a big plus.
I am currently using a great datawarehouse transformation tool that makes heavy 
use of yaml for configuration and documentation (dbt<http://www.getdbt.com>),
and as a BaseX's old friend, I naturally use XQuery to process these yaml 
files, but it requires a call to a unix command line tool in order to transform 
to json first.

And thank you for the summer edition !

Best regards from french west coast,
Fabrice


De : BaseX-Talk  de la part de 
Marco Lettere 
Envoyé : mercredi 12 août 2020 12:04
À : BaseX 
Objet : [basex-talk] Yaml serialization

Dear BaseX team,

just out of curiosity, could you imagine what kind of effort it would be
to provide YAML as another serialization method for BaseX in addition to
XML, HTML, JSON, CSV?

The datamodel seems pretty close to the JSON one so maybe a very similar
transformation to XML could be implemented ...

Ciao,

Marco.



[basex-talk] Yaml serialization

2020-08-12 Thread Marco Lettere

Dear BaseX team,

just out of curiosity, could you imagine what kind of effort it would be 
to provide YAML as another serialization method for BaseX in addition to 
XML, HTML, JSON, CSV?


The datamodel seems pretty close to the JSON one so maybe a very similar 
transformation to XML could be implemented ...


Ciao,

Marco.