> ERROR: Required parameter <extension> not set:
> (Output file extension (inputfile(s) + extension)).
>
> But in my case I don't want an extension, or, said differently, I want
> the extension to be empty. At the command line, I can just type
> 'extension=', but there is no way I can give an 'empty' value to the
> extension parameter in the tcltk gui.
this would work around the immediate problem:
if(strlen(extension) == 0)
G_fatal_error(_("Extension required"));
or default to none,
ext->answer = "";
ext->required = NO;
or test for ext="none" and replace it with "".
personally, I've always just used ext='.rect' and worried more about what was
happening with the data bugs in order=3 and the -c flag.
Hamish
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