[tty/unix] Do not disable termios signals

[andreistan26]

For some use cases the signals should not be disabled, as there is no way to distinguish between SIGINT and SIGQUIT with the current Interrupt enum.

I am not familiar with the project but as far as i can see there is no way around it. If this is the case, i can open a PR with a fix for adding another config field.

[gwenn]

If possible, could you please provide a similar library (not necessarily in Rust) that does ?
And could you please confirm that your issue is related to ISIG here:

rustyline/src/tty/unix.rs

Line 1517 in c01855a

!(LocalFlags::ECHO | LocalFlags::ICANON | LocalFlags::IEXTEN | LocalFlags::ISIG);

?
Thanks.

[andreistan26]

1. I am not very familiar with libraries alike, so i cannot give any examples.
2. Yes the issue is related to LocalFlags::ISIG". Due to the signals not being able to be handled within the interpreter using a signal handler. I am not sure about other the implications of removing ISIG via a config option , another solution would be to emit a more specific interrupt like SpecificInterrupt(SIGINT)

[gwenn]

We may have a look at linefeed / mortal:
https://github.com/murarth/mortal/blob/e87c685af2f424be7e4f039baf36f8327d389f71/src/unix/terminal.rs#L356-L360

https://github.com/murarth/linefeed/blob/32d8e8999de8af27f319f651f9f81f6bf5836d72/src/terminal.rs#L55-L80

[andreistan26]

i think that a simple config should do it, much like mortal. I will post a draft later

[andreistan26]

Is there any way to print the signal specific chars. I would like to have:

• ^C for ctrl+c
• ^\ for ctrl+\

[gwenn]

Version 14.0.0 released