Experimental Physics and
Industrial Control System

Folks,

 

This is my first time trying to use a record alias.

 

I would like to have a database file that looks like this:

 

record(bi, "$(P)$(R)")

{

    field(DESC, "$(DESC=)")

    field(DTYP, "asynUInt32Digital")

    field(INP,  "@asynMask($(PORT),$(ADDR),$(MASK))DIGITAL_INPUT")

    field(ZNAM, "$(ZNAM=Low)")

    field(ZSV,  "$(ZSV=NO_ALARM)")

    field(ONAM, "$(_ONAM_=High)")

    field(OSV,  "$(OSV=NO_ALARM)")

    field(SCAN, "I/O Intr")

    alias(      "$(ALIAS=)")

}

 

The DESC macro defaults to an empty string, which is works fine.  I would also like to have the ALIAS macro be optional, so that one can optionally define a record alias.  This does not work, it leads to this error when loading the database.

 

dbLoadRecords: failed to load '$(MEASCOMP)/measCompApp/Db/measCompBinaryIn.template'

Error: Error: Record/Alias name can't be empty

at or before ')' in file "/corvette/home/epics/support/measComp-4-1/measCompApp/Db/measCompBinaryIn.template" line 11

Error: syntax error

 

Is it possible to have an optional ALIAS?

 

Thanks,

Mark