Add newline support for the format option

[Earnestly]

Currently slop -f '...' doesn't produce a newline which makes it difficult to use in a slop | while read -r pipeline. I have tried adding \n to the -f format but it just prints a literal \n.

To workaround this issue I'm using { slop -f '...'; printf '\n' } | while read -r ...

(Another workaround is to simply absorb the input with a tool like awk)

[AloisMahdal]

Another possible workaround s to include the newline (ie. not \n sequence) within the string; you can do it with Bash using this syntax: slop -f $'hey\n'.

But I agree it would be nice if slop could interpret the sequences by default.

[Earnestly]

The trouble with $'' is that it's not POSIX, as otherwise I could have used command substitution (<()) much like the examples in the manual demonstrate. Although $'' is slated for the next version of POSIX, so that's nice.

[ListeriaM]

A possible POSIX compliant workaround:

slop -f '...
' | while read -r ...

[Earnestly]

For what it's worth, Issue 8 of POSIX will include the dollar quotes: https://gist.github.com/Earnestly/29deee4f18346da6630ed1df760f1590