Re: Sequencer interpretation of PV names with {,} characters

["Kasemir, Kay via Tech-talk" <tech-talk@aps.anl.gov>]

If there’s no way to escape macros, you might have to connect programmatically, see “pvAssign” in sequencer manual:

 

/* Initially, don’t assign */

double pv;

assign pv to “”;

 

 

  /* Then later in some “init” state */

  pvAssign(pv, “XF:BM-ES{Psh_blade1}Pos”);

  pvMonitor(pv);

 

 

From: Kasemir, Kay <kasemirk@ornl.gov>
Date: Friday, November 3, 2023 at 11:38 AM
To: Ivashkevych, Oksana <oksana@bnl.gov>, tech-talk@aps.anl.gov <tech-talk@aps.anl.gov>
Subject: Re: Sequencer interpretation of PV names with {,} characters

SNL uses {macro} for macros, like the shell or database would use $(macro).

Not sure if there’s a way to escape curly brackets like “\{not_a_macro\}” …

 

From: Tech-talk <tech-talk-bounces@aps.anl.gov> on behalf of Ivashkevych, Oksana via Tech-talk <tech-talk@aps.anl.gov>
Date: Friday, November 3, 2023 at 11:30 AM
To: tech-talk@aps.anl.gov <tech-talk@aps.anl.gov>
Subject: [EXTERNAL] Sequencer interpretation of PV names with {,} characters

Hello,

The PV names I would like to link to have {, } inside their names, e.g “XF:BM-ES{Psh_blade1}Pos”.

It appears that the sequencer module does not like the curly brackets.

 

The PV name inside my runTest.st file compiles well, but when I run the sequencer, the PV in question does not connect, with errors:

 

sevr=minor runTest[0](after 0 sec): assigned=1, connected=0, monitored=1, got monitor=0

 

Everything works if a PV does not have  {} in its name.

 

I was wondering if someone could comment on it, where it could be happening, and if it is possible to patch may be.

 

Thank you

Oksana