Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Wed, 7 Sep 2016 15:15:38 -0500

On 09/07/2016 03:02 PM, Mooney, Tim M. wrote:
> 
> Turns out EPICS won't load a record whose name starts with '.'

The IOC does reject attempts to create a record whose name has any of
the characters space, double-quote, single-quote, dot or dollar sign in
it anywhere, not just at the beginning of the name. That is the only
enforced naming limitation at the moment.

> caget doesn't work with all PVs whose names start with '-'

Oh yes it does, it follows the Unix standard for command-line arguments
which is that arguments beginning with a hyphen can be given after a
double-hyphen, so:

> tux% caget -- -my-pv
> Channel connect timed out: '-my-pv' not found.

Record names starting with '-' are definitely legal.

- Andrew

-- 
Arguing for surveillance because you have nothing to hide is no
different than making the claim, "I don't care about freedom of
speech because I have nothing to say." -- Edward Snowdon

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System