[GRASS-user] GRASS module (python, gparser): Set a tick for flag by default

[Glynn Clements]

Johannes Radinger wrote:

> I am working on a python script which involves a g.parser module (to
> get the input mask for a module as for other modules in GRASS).
> 
> So far I know how a flag is produced in the beginning of the script.
> E.g.:
> 
> #%Flag
> #% key: f
> #% description: My Flag of Interest
> #%end
> 
> Is there any possibility to set the flag ticked by default? So like providing
> an answer for "options".

No. Unlike options, where the user can override a default by providing
an explicit value, there's no way to disable a flag which is enabled
by default, and no way to specify GUI behaviour distinct from
command-line behaviour, so flags always default to false.

The only option is to invert the sense of the flag, i.e. enable the
behaviour by default and provide a "don't ..." flag to disable the
behaviour.

-- 
Glynn Clements <glynn at gclements.plus.com>