Return non-zero exit code when physical pause button is pressed

[migurski]

I sometimes chain plot commands together, like this:

axicli && axicli && axicli

If during one of those commands I press the physical pause button, axicli stops drawing as it should but the zero exit status immediately moves on to the next plot in the chain. A non-zero status would halt the set of commands completely.

[oskay]

Interesting. I'll have to think about this.

Right now, non-zero status is only used (I believe) for a couple of error conditions, and a pause is not an error condition. Pauses can happen because they are programmed in the SVG file, from a physical button press, or keyboard interrupt.

[migurski]

Physical button presses and keyboard interrupts both seem like exceptional events that could lead to a non-zero exit status. No idea about the SVG pause events!

[oskay]

Indeed.

[oskay]

Feature implemented as of v3.6.