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https://issues.apache.org/jira/browse/UIMA-2758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13655315#comment-13655315
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Richard Eckart de Castilho commented on UIMA-2758:
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It may be possible to mitigate the problem via the "aliases". Since you can
import a type "my.namespace.Type" as "MyType" now, you could assume that
MyType.feature always refer to a feature. You could use some quoting mechanism
to keep the "." operator unambiguous (which I think is important). E.g. one
could write 'my.namespace.Type'.feature or {my.namespace.Type}.feature or
something like that. Its probably not a good idea that the "." operator can be
a package separator and a "navigate to feature value" operator at the same
time. Just imagine somebody would define a type "my.namespace" with a feature
"Type" and at the same time a type "my.namespace.Type"...
> TextMarker: Provide support for tree structures and parse trees in rule
> language
> --------------------------------------------------------------------------------
>
> Key: UIMA-2758
> URL: https://issues.apache.org/jira/browse/UIMA-2758
> Project: UIMA
> Issue Type: New Feature
> Components: ruta
> Reporter: Peter Klügl
> Assignee: Peter Klügl
>
> Manipulation of features which refer to annotations and matching on simple
> features is currently supported, but matching on the complex values of some
> feature is not. A first step can be something like (Type Person with feature
> "title" of type Annotation):
> Person.title;
> This rule matches on all annotations, which are values of features of
> annotations of the type Person.
> This new language element can also be used for syntactic sugar when checking
> primitive feature values:
> Person.begin=0 (A Person annotation, which starts a offset 0)
> This can only be a first step towards supporting tree structures. Maybe there
> is no way around something for explicitly and directly referring to certain
> annotations (which is not possible right now, but is done by using the type).
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