Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Fri, 27 Feb 2009 10:01:40 -0600

On Thursday 26 February 2009 18:23:17 Ralph Lange wrote:
>
> I have to admit, though, that arrays of strings with embedded spaces
> break one of the command line tools' underlying ideas: caput understands
> the caget return value of the same PV.
>
> So, an command line option to change the separator could be a feasible
> solution, or quoting those strings, or both. Any preferences?

Carl Schumann also wrote (privately):
> Even as human I have trouble parsing the result.  The PV is not
> mine and so I don't really understand the strings I am looking at to
> being with.   The lack of an obvious separator complicates matters further.

I agree that your particular example was pretty much impossible to read, so we 
should fix the tools.

How about we change ca{get,put,monitor} so that if they're printing string 
values (and ENUM choice strings) that contain spaces or other characters that 
need escaping for the shell, they enclose them in double-quotes?

I guess they should also escape control characters, and the rule should 
probably apply to PV names as well.  Maybe we need an option to turn this on 
though?

A good Codeathon job, if you need one Ralph...

- Andrew
-- 
The best FOSS code is written to be read by other humans -- Harold Welte

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System