|        | |||||
|  | |||||
| operator | is in-library | ||||
| Sample Code | Related Syntax | ||||
| Summary | Boolean True if the entity or notation contains library rules, and false otherwise. Replacing  | 
(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.
| Sample Code External text entities: processing | Related Syntax library | 
| ---- |