In FormPreferences->Output->Printer, the "adapt output"
checkbox seems unclear. There are four cases here :
1) the user has entered a printer name, and
$PRINTER has a value. The user value should always override
$PRINTER by passing it to lpr.
2) the user has entered a printer name, and $PRINTER is not
set. The user value should be passed to lpr.
3) the user has not entered a printer name, and
$PRINTER is set. There is no need to pass $PRINTER to lpr.
4) the user has not entered a printer name and $PRINTER is not set.
There is nothing to pass to lpr.
So in summary it looks like we should only pass a value to
lpr if there is some printer name entered by the user.
As far as I can see, this applies to lyxrc as well. My lpr manpage says :
-P Force output to a specific printer. Normally, the default print
er is used (site dependent), or the value of the environment
variable PRINTER is used
Are there lpr's out there for which this is *not* the case ?
If so, then the dialog entry should be filled with the contents of
$PRINTER unless set otherwise in lyxrc, and adapt_output should be dropped
from the GUI. This leaves the question of
whether to save $PRINTER back to lyxrc or not. I vote not.
If not, then adapt_output should be dropped completely IMHO.
thanks
john
