- check if the first argument corresponds to an OpenFOAM value for
'true' (as per Switch).
True == 't', 'y', 'true', 'yes', 'on'. Everything else is not true.
- when the first argument is '-dict', it initializes the value
with a query via foamDictionary.
Eg,
isTrue -dict mydict -entry parallel
==> value=$(foamDictionary mydict -entry parallel -value)
isTrue $value
a missing entry is silently treated as false.
ENH: add getNumberOfPatchFaces function in RunFunctions
- simple extraction of nFaces from boundary file for given patch/region