More info wanted on GUI-SEP.

[FrankB]

I think this question is for Phil.

This is not a bug-report or change-request, only a request for info.

Background:
In ExifToolGui the pseudo tag '-GUI-SEP' is used to group tag names, by showing a heading line in bold. I'm thinking of extending this use, to indicate that a user entered an invalid tag. Examples are '-' and '--' that can currently cause ExifToolGUI to misbehave.

I have run searches on the ExifTool code and ExifTool docs (html) and can find no reference of GUI-SEP.
To me it looks like 'GUI-SEP' behaves like any other 'unknown tag', it just prints a hyphen '-' when used with '-f'.

My ASSUMPTION is that in the past it was advised to Bogdan to use that name because it would never be used as a real tag.

Is the assumption true, and if yes, can I use other names for pseudo tags? (Example: 'GUI-INV' for an invalid tag)

Thanks in advance, no hurry,

Frank

[Phil Harvey]

Hi Frank,

To me it looks like 'GUI-SEP' behaves like any other 'unknown tag', it just prints a hyphen '-' when used with '-f'.

Correct.

Is the assumption true, and if yes, can I use other names for pseudo tags? (Example: 'GUI-INV' for an invalid tag)

Correct again.

And furthermore, you can define any value you want for these tags by doing this:

-userparam GUI-INV#="some string"

- Phil

[FrankB]

Thanks for your fast and clear reply, Phil.