Sounds sensible to me.
PS
________________________________________
From: gretl-devel-bounces(a)lists.wfu.edu [gretl-devel-bounces(a)lists.wfu.edu] on behalf of
Allin Cottrell [cottrell(a)wfu.edu]
Sent: Saturday, July 06, 2013 9:27 AM
To: Gretl development
Subject: [Gretl-devel] scrap "halt_on_error" switch?
Hello all,
I'm thinking that I'd like to get rid of option to do
set halt_on_error off
in gretl. But here's an opportunity to object if you are so
moved.
Brief reminder: halt_on error means that if an error is
encountered in running a script, execution of the script
stops. (When using gretlcli with the -b or --batch flag this
means that the program will exit.) This is the default
behavior, but setting "halt_on_error off" will (with something
less than 100% reliability?) cause script execution to
continue in face of errors -- unless gretl is currently
"compiling" a loop or function, in which case it stops
execution regardless of the halt_on error state.
This mechanism predates the "catch" modifier for commands --
and I would say that unlike "catch" it is pretty much useless
if not dangerous. The halt_on_error off-switch was originally
introduced as an aid to debugging gretl itself, but I haven't
found any use for it in that capacity in the last several
years. It's a complication we could do without.
Just to be clear: if I make the proposed change, it means that
in effect "halt_or_error" is always on. But you can still use
"catch" to test a given script command for an error condition
and continue on error if that seems appropriate.
For (minimal) backward compatibility we could make it so that
issuing the command "set halt_on_error off" does not itself
provoke an error, but just prints something like "Warning:
obsolete 'set' argument ignored".
Allin
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