BQN launch discards whitespace from input about weekgolf

[tkr-sh]

cat -v /mnt/in/input$testcount.txt

Should do it ?

[ovs-code]

Expanding on what I just said on Discord, I think there are two possible ways to fix this:

1. Pass input via stdin:

./bin/bqn -f /mnt/in/prog.bqn         \
    < /mnt/in/input$testcount.txt     \
    > /mnt/out/out$testcount.txt      \
    2> /mnt/out/err$testcount.txt

2. Pass input as a single command line argument. By my shell knowledge this should look something like this

./bin/bqn -f /mnt/in/prog.bqn         \
    "$(cat /mnt/in/input$testcount.txt)" \
    > /mnt/out/out$testcount.txt      \
    2> /mnt/out/err$testcount.txt

Either of those solution will break many of the existing solutions in BQN, but I think this is worth it to make sure future holes can be solved with BQN.

[ovs-code]

A third option, suggested by attinat: Pass each line of input as a separate command line argument, could be implemented as such:

cat /mnt/in/input$testcount.txt \
    | tr '\n' '\0' \
    | xargs -0 ./bin/bqn -f /mnt/in/prog.bqn \
    > /mnt/out/out$testcount.txt      \
    2> /mnt/out/err$testcount.txt

This has the advantage of keeping all existing solutions that dealt with one input per line working. Therefore my vote would be on this.