Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Wed, 22 Aug 2012 10:27:30 -0500

Hi Dirk,

On 2012-08-22 Dirk Zimoch wrote:
> The dbd file parser does not accept empty strings as initial values:
> 
> Syntax error in 'initial()'
> Context: field(PORT, DBF_STRING) in recordtype(asyn) in file
> '../O.Common/streamApp.dbd'
> 
> The field in question is:
> 
>      field(PORT,DBF_STRING) {
>          prompt("asyn port")
>          promptgroup(GUI_INPUTS)
>          special(SPC_MOD)
>          interest(1)
>          initial("")
>          size(40)
>      }
> 
> The problem lies in lib/perl/DBD/Parser.pm where $string does not accept
> empty strings.

Actually the problem lies in DBD/Output.pm; dbdExpand.pl was not including 
quotes when writing out empty field attribute values in the expanded file.  
The other DBD file parsers (in dbStaticLib and VDCT) aren't going to accept a 
field attribute spelled
	initial()
either, it needs to be
	initial("")
although in practice this attribute does nothing and can be deleted since an 
empty string is the default anyway.

I've just added another patch to the Known Problems page for this.

- Andrew
-- 
Never interrupt your enemy when he is making a mistake.
-- Napoleon Bonaparte

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System