${@:0:1} evaluates to ${@:0}

[Crestwave]

osh$ set a b c
osh$ echo "${@:0:1}"
osh a b c
osh$ echo "${@:0:2}"
osh a

$ set a b c
$ echo "${@:0:1}"
bash
$ echo "${@:0:2}"
bash a

This was found while toying around, not from a real script. I was testing if ${@::1} would return $1 or $0, as the Bash manual says "Substring indexing is zero-based unless the positional parameters are used, in which case the indexing starts at 1 by default." but ${@::1} evaluates to $0, anyway. :/

[andychu]

Good catch, thanks for testing! I fixed this and simplified the code a bit.