Re: [RFC] improve nano's interface toward external tools

[Benno Schulenberg]

Op 04-01-2021 om 12:59 schreef Tomas Mudrunka:
> I would love to be able to specify pair of input/output filters instead of 
> file
> name. eg.:
> 
> nano --read "cat file.txt" --write "tee file.txt"

You can implement that yourself by writing a script that checks for the
--read and --write options, and runs the found commands to and from a
temporary file.

> Or specify some filters to process files when reading writing. For example.:
> 
> To convert binary to hexdump upon read and back to binary upon write:
> 
> nano --read-filter "xxd" --write-filter "xxd -r" file.bin

Same thing: can be done with a script.  Just the file name in the title
bar will not be nice.

> To have encrypted textfile for personal notes which will be decrypted and
> encrypted automaticaly by nano upon access using GPG. While this is not 
> perfect
> security-wise, it would be secure enough for my use case.
> 
> nano --read-filter "gpg --no-use-agent --decrypt" --write-filter "gpg 
> --symmetric
> -a --no-use-agent" file.gpg

Here a script will not do, because one doesn't want any temporary file.

There is a feature request (for allowing nano to write the file data to
standard output) that would enable this:

    https://savannah.gnu.org/bugs/?27346.

> Dne 2021-01-04 12:40, Benno Schulenberg napsal:
>> Op 02-01-2021 om 23:17 schreef Marco Diego Aurélio Mesquita:
>>> [...]

Please learn to snip.  Do not quote the entire preceding email.  It is
wasteful.

Benno

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