DF/data4es/093: refactoring. #379
Merged
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Extracting a specific field from a dataset name is a single logical
operation -- so it is much more readable to have a function call "give
me data format" then the whole algorithm's implementation within a more
high-level operation (in this case, getting a list of formats that
should be associated to the dataset).
Dataset name parsing doesn't look like a stage-specific functionality,
more like a whole use-case specific one. So it is moved to the (new)
case-specific module of the common library.
(Partly) overrides #371