Experimental Physics and
Industrial Control System

"Zimoch Dirk \(PSI\) via Core-talk" <core-talk at aps.anl.gov> · Tue, 4 Jan 2022 09:09:47 +0000

The following breaktable name worked perfectly fine in EPICS 3.14:
breaktable(ZX47-55LN+_142.8MHz) {

But in EPICS 7, registerRecordDeviceDriver.pl complains:
Syntax error in 'breaktable(ZX47-55LN+_142.8MHz) {'

Not very informative, but let's try with quotes. Not the error is:
Illegal breakpoint table name 'ZX47-55LN+_142.8MHz'
        Identifiers are used in C code so must start with a letter, followed
        by letters, digits and/or underscore characters only.

Why that? The name of a breaktable is never used as a C identifier. It is simply a string.

Such breaking changes are very inconvenient, as they require to change all the templates where the name is used and make transition to EPICS 7 unnecessarily cumbersome.

Can we change it back?

Dirk

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System