TDIF objectThe TDIF object is like the root of a file system, to which all of the data sources attach. Each node can be interrogated about several aspects of where it fits in the global picture. I’m still working on the implementation, but here is a rough sketch of what I have in mind:
tdif address [object] -> Return/Generate a TDIF address of an object
tdif object [element] -> Convert the a TDIF address to an object name
tdif is address [string] -> is this string the address to an object
tdif is object [string] -> is this string the name of an object?
tdif is container [object] -> Does the object contain nodes?
tdif is node [object] -> Check that this object works with TDIF
tdif is mortal [object] -> Is the object subject to garbage collection.
tdif ls [object] ?[pattern]? -> Return contained nodes that match pattern
tdif class [object] -> Return the class of an object as specified by its container.
Used by TDIF when we automatically define objects as someone is walking
through the file system.
tdif insert [object] {key value ?key value?...} -> Insert a new node
tdif alias [object] [element] -> Link the object to a part of the TDIF file system
tdif exists [object] ?[pattern]? -> Test that a node exists
tdif delete [object] ?[pattern]? -> Delete a node from TDIF space (and possibly
from the container itself.
tdif select [object] [{key key ...}] ?[pattern]? ... -> Select information from a
container that matches the {key op value}. Key is the name of a field. Op is
a comparison operation (= not like). Value is a value.
tdif container [object] -> Return the container of an objectParticipant Class Methods
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