Cleanup and optimization of the DBline class that is used to parse RPC
text configurations (usually read from COOL):
Add a unit test for the DBline class that will make future changes
easier to validate.
Remove the obsolete I/O formatters (hex, dec, oct) that were
using excessive amounts of news. These functions were not used
anymore and the code comments said those are obsolete and replaced by
the equivalent dbhex, etc. version. Also delete the now obsolete
setdbfmtflag to switch between the old/new formatters.
Update the documentation. It said floats are supported but that was
never the case.
Delete unsupported stream operators for floating point types. Also
remove operators for pointer types (why would anybody use those?).
Use std::string_view where possible.
Use delegating constructor to avoid copy&paste.
Remove internal "store" that was not being used.
Use std::getline instead of get to read full line. This is a slight
change of behavior as now the terminating newline will be part of the
data. In practice this makes no difference as any whitespace is
ignored via the isspace check already.
General code cleanup and improvements.
Also make the necessary adjustments in RPC_CondCabling.
These are in principle all technical changes. An additional careful look by a muon expert (cc @jojungge@nkoehler) could be useful though.
