Experimental Physics and
Industrial Control System

On Friday 22 February 2008 20:08, Tim Mooney wrote:

(Note the above file must end with '\n' or "\r\n".)

Hi,

is there a rationale behind this? If not, I think this should be fixed.

Similar remarks apply, BTW, to other EPICS tools. For instance, I noticed in the past that dbExpand silently ignores the last line of a dbd include file if it doesn't end in a newline. This has caused endless grief to Windows users, as editors for Windows generally don't automatically add a newline at the end.

If this hasn't already been fixed, I propose to put it on the list of things to be done before the next release of base. I'd say chances that people rely on the faulty behaviour are practically zero.

This is not a problem in base.  Autosave simply needs to know that the file it's
restoring from was not corrupted by an ioc crash that occurred while the file
was being written.  The simplest and most common artifact of such a crash is a
truncated file, and autosave detects this by requiring the last few characters
of the file to fit a pattern that is unlikely to occur in the middle of the
file, and by always ending the files it writes in this way.  Some systems use
"\r\n" as an end-of-record character, and some use "\n", so both are permitted.

Autosave was not intended to process files written by humans.  If this use
becomes common enough, it will be worthwhile to code a relaxed reader that
recognizes files written by humans, and doesn't require any special end pattern.

--
Tim Mooney ([email protected]) (630)252-5417
Beamline Controls & Data Acquisition Group
Advanced Photon Source, Argonne National Lab.

Replies:

Re: Initialize multi-element field Benjamin Franksen

References:

Initialize multi-element field Dehong Zhang

Re: Initialize multi-element field Tim Mooney

Re: Initialize multi-element field Benjamin Franksen

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