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| operator | is in-library | ||||||||
Return type: Boolean True if the entity or notation contains library rules, and false otherwise. Replacing
Returns: is with isnt will reverse the results.
Syntax
(entity | notation) (is | isnt) in-library
Either an entity or a notation test used to determine whether the program contains, respectively, library rules for the specified entity, or a system identifier of the specified notation.
in-library succeeds only if the entity is an external entity, with a public identifier that is mapped to a system identifier in an OmniMark library declaration.
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Related Syntax library |
Related Concepts Entities |
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