Hi,
derived-from is defined as:
boolean derived-from(node-set nodes,
string module-name,
string identity-name)
The derived-from() function returns true if the first node in
document order in the argument "nodes" is a node of type
identityref, and its value is an identity that is derived from the
identity "identity-name" defined in the YANG module "module-name";
otherwise it returns false.
The "first node in the node set" doesn't work well with leaf lists. I
suggest this change:
NEW:
The derived-from() function returns true if any node in
the argument "nodes" is a node of type
identityref, and its value is an identity that is derived from the
identity "identity-name" defined in the YANG module "module-name";
otherwise it returns false.
(and similar for derived-from-or-self)
As an example, consider this model:
leaf-list yang-protocol {
type identityref {
base yang-protocol;
}
}
and this query:
/modules/module[not derived-from-or-self(restricted-protocol,
"ietf-yang-library",
"netconf-1.1")]
/martin
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