I have a struct with some nested fields, such as cfg.accel.filename, cfg.accel.calibration, cfg.gyro.filename, etc. Sometimes the fields exist, sometimes they don't, at different levels. In the above example, the 'gyro' field could be missing, or it could just be cfg.accel.calibration that could be missing.
Is there a way to check for deeply nested fields? Currently I'm doing something like:
topstruct = struct(whatever...) if isfield(topstruct, 'f1') if isfield(topstruct.f1, 'f2') if isfield(topstruct.f2, 'fleaf') do_something(topstruct.f1.f2.fleaf) end end end
Ideally I'd like to do some sort of thing like doifget(mystruct, action, field1, field2,…) where action is not actually evaluated unless mystruct.field1.field2 exists. Maybe action can be a lambda/anonymous function.
Probably just something like getif(mystruct, field1, field2, …) returns [] if the field doesn't exist, and the value if it does.
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