On Fri, Apr 24, 2015 at 9:42 PM, Martin Davis <mtnclimb@anonymised.com> wrote:
Ok, how about:
Names must be compatible with their use in OWS service requests and
response documents. For general use, consider using only the characters:
upper and lowercase letters, numbers, dash, underscore and period. Spaces
can be present, but will need to be escaped in URLs.
The wording "consider using" is meant to indicate this is only a
suggestion to avoid possible pain, not a validation rule.
Let me try a (longer) variation, removing spaces from the general rule as
they are not valid for WFS/WCS 2.0
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Different OGC protocol have different requirements on layer names.
If you want a single rule that will make layer names across protocols, use
only upper and lowercase letters, numbers, dash, underscore and period, and
make sure the name starts with a letter.
If instead you're interested in using only a subset of the protocols, here
is a summary:
* WCS 1.0, 1.1 and WMS pose no limit whatsoever on the layer names, which
can contain pretty much any character
* WFS (all versions) and WCS 2.0 require the layer name you give to
GeoServer to be an NCName, that is, a non colonized name. A NCName cannot
contain several symbol characters like colon, @, $, %, &, /, +, comma,
semicolon, whitespace characters or different parenthesis. Furthermore an
NCName cannot begin with a number, dot or minus character although they can
appear later in an NCName.
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Cheers
Andrea
--
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Ing. Andrea Aime
@geowolf
Technical Lead
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