# do all of these in subshells since it's supposed to error out

export var=0123456789

# first try some invalid patterns
"$THIS_SH" -c 'echo ${:}'
"$THIS_SH" -c 'echo ${::}'
"$THIS_SH" -c 'echo ${:1}'
"$THIS_SH" -c 'echo ${::1}'

#this also is not valid in bash, but we accept it:
"$THIS_SH" -c 'echo ${var:}'

# then some funky ones
# UNFIXED BUG: this should work: "$THIS_SH" -c 'echo ${?:0}'

# now some valid ones
"$THIS_SH" -c 'set --; echo "1    =|${1}|"'
"$THIS_SH" -c 'set --; echo "1:1  =|${1:1}|"'
"$THIS_SH" -c 'set --; echo "1:1:2=|${1:1:2}|"'
"$THIS_SH" -c 'set --; echo "1::2 =|${1::2}|"'

"$THIS_SH" -c 'set -- 0123; echo "1    =|${1}|"'
"$THIS_SH" -c 'set -- 0123; echo "1:1  =|${1:1}|"'
"$THIS_SH" -c 'set -- 0123; echo "1:1:2=|${1:1:2}|"'
"$THIS_SH" -c 'set -- 0123; echo "1::2 =|${1::2}|"'

"$THIS_SH" -c 'unset f; echo "f    =|$f|"'
"$THIS_SH" -c 'unset f; echo "f:1  =|${f:1}|"'
"$THIS_SH" -c 'unset f; echo "f:1:2=|${f:1:2}|"'
"$THIS_SH" -c 'unset f; echo "f::2 =|${f::2}|"'

"$THIS_SH" -c 'f=; echo "f    =|$f|"'
"$THIS_SH" -c 'f=; echo "f:1  =|${f:1}|"'
"$THIS_SH" -c 'f=; echo "f:1:2=|${f:1:2}|"'
"$THIS_SH" -c 'f=; echo "f::2 =|${f::2}|"'

"$THIS_SH" -c 'f=a; echo "f    =|$f|"'
"$THIS_SH" -c 'f=a; echo "f:1  =|${f:1}|"'
"$THIS_SH" -c 'f=a; echo "f:1:2=|${f:1:2}|"'
"$THIS_SH" -c 'f=a; echo "f::2 =|${f::2}|"'

"$THIS_SH" -c 'f=0123456789; echo "f    =|$f|"'
"$THIS_SH" -c 'f=0123456789; echo "f:1  =|${f:1}|"'
"$THIS_SH" -c 'f=0123456789; echo "f:1:2=|${f:1:2}|"'
"$THIS_SH" -c 'f=0123456789; echo "f::2 =|${f::2}|"'