Hello everyone,

> Second, if the functioning of opensc-explorer will not change without extra 
> options, it is a nice addition.
> Adding a long option ("--mf"?) together with documentation would be nice. I'd 
> use -m short option instead of -f (which many other utilities use for 
> filesystem based parameters and could be associated by some people as "read 
> commands from file" by default)

It's now there in r4637.

The change in r4638 is there because, when starting opensc-explorer
with --mf "", no current_path is set, and there will be none until the
user cd's to a valid DF.

Given that EMV cards are a valid use case where we can issue such
commands as "info" and exchange raw APDU's without ever cd'ing to a
valid path, I have introduced this change to let the system keep the
currently selected file when there is no valid DF to go back to.

Neither r4637 nor r4638 should change the behavior in any way when
opensc-explorer is started without -m/--mf.

Greetings!

-- 
Emanuele
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