raw stdin-based input mode for piping expressions

[ishaan-sen]

I frequently find myself piping expressions from terminal-based text editors like Helix into qalc for computation. I've looked, but I haven't yet found any way to make qalc accept input from standard input without printing the > prompt for interactive mode.
Currently, I have an alias that uses xargs to enter my expression as an argument to qalc -t. I was wondering if there could be a new CLI option for returning the result of an expression piped into stdin.

Is there already a way to do this? If not, I'm open to trying it and making a PR if this is wanted.

[hanna-kn]

How about qalc -t -f -?
-f/--file tells qalc to read expressions and commands from the specified file (in this case stdin).

[ishaan-sen]

Of course. Setting the file to stdin didn't occur to me. Thanks for the amazing calculator; I use it every day.