Imagery providers XSD

[Don-vip]

Hi,

I have written the XML Schema for Maps.

I think it should be first put somewhere on the SVN and linked from Maps.
This would allow everyone to perform a manual validation. It could also be used directly by JOSM, what do you think ?

[bastiK]

We can let the server validate any change to the wiki page ​https://josm.openstreetmap.de/wiki/Maps and reject changes, that do not pass.

[stoecker]

Replying to bastiK:

We can let the server validate any change to the wiki page ​https://josm.openstreetmap.de/wiki/Maps and reject changes, that do not pass.

I already thought about that, as I broke the page sometimes in last days :-)

[stoecker]

In [4440/josm]:

added maps xsd (see #6859)

[stoecker]

The URI-Type must be changed, as our patterned URI's aren't recognized as valid.

[stoecker]

Example validator code:

from lxml import etree

maps = open("maps", "r").read()

try:
  mapsxml = etree.fromstring(maps)
  schema = etree.XMLSchema(etree.parse(open("maps.xsd", "r")))
  schema.assertValid(mapsxml)
except Exception, e:
  print e

[bastiK]

Replying to Don-vip:

I have written the XML Schema for Maps.

I think it should be first put somewhere on the SVN and linked from Maps.
This would allow everyone to perform a manual validation. It could also be used directly by JOSM, what do you think ?

I'm not an expert in XML Schema, but can we replace <xs:sequence> by <xs:all> in line 590? It is silly to keep these properties in a special order.

An automatic validation in JOSM might not be a good idea at the moment, because the format is not stable. New properties may be added and although older versions of JOSM work fine (by ignoring the new properties) the new xml won't be valid according to the old schema. A message to the console would be ok, though.

[Don-vip]

I'm not an expert either, you can of course switch to xs:all :)

[bastiK]

In [4449/josm]:

fix schema (see #6859)

[stoecker]

I added the XSD checks to the Maps page.