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These functions allow you to recognize values that are cross references and to read the records they refer to.
| Function | Description |
|---|---|
| bool reference(string) | Reference returns true if its string argument is a cross reference value, that is, the internal key of one of the records in the database. |
| node dereference(string) | Dereference returns the node tree of the record referred to by the cross reference string argument. |
| node getrecord(string) | Getrecord is the same function as dereference. |
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