[QGIS-Developer] QGIS project XSD

[Matthias Kuhn 🌍]

Hi Giovanni,

On 06/30/2017 10:35 AM, G. Allegri wrote:
> Hi everybody,
> I know this has been discussed in the past, and maybe I missed more
> recent discussions, but I think this is a point that should be considered.
> 
> Working a lot with QGIS projects parsing and processing, we have to rely
> on trials and errors to validate a QGIS project and create test projects
> on every QGIS release to verify our paresers to be aligned with each
> version.

I mostly use the API (which is much more stable than the project file
format) when I need to work with a project file.

> I see that a very old (15 years) Qgis.xsd is still in the QGIS sources [1]. 

I noticed that one as well and wouldn't mind to dump it.

> 
> First of all I would get rid of it, being outdated and (I guess) unused.
> Then I would remove the DOCTYPE declaration from the project XML and use
> a Schema declaration instead, pointing to a versioned XSD.
> 
> XSDs could have their own versioning scheme, or keep it simple and let
> XSD versions be strictly the same as QGIS's version (reported inside the
> project file).


Having an .xsd sounds like a good thing to have. What would you need to
maintain such a file?

Matthias