| # do all of these in subshells since it's supposed to error out |
| # (set argv0 to "SHELL" to avoid "/path/to/shell: blah" in error messages) |
| |
| # first try some invalid patterns |
| #"$THIS_SH" -c 'echo ${?}' SHELL -- this is valid as it's the same as $? |
| "$THIS_SH" -c 'echo ${:?}' SHELL |
| |
| # then some funky ones |
| # note: bash prints 1 - treats it as "length of $#" |
| "$THIS_SH" -c 'echo ${#?}' SHELL |
| # bash prints 0 |
| "$THIS_SH" -c 'echo ${#:?}' SHELL |
| |
| # now some valid ones |
| export msg_unset="unset!" |
| export msg_null_or_unset="null or unset!" |
| |
| echo ==== |
| "$THIS_SH" -c 'set --; echo _$1' SHELL |
| "$THIS_SH" -c 'set --; echo _${1?}' SHELL |
| "$THIS_SH" -c 'set --; echo _${1:?}' SHELL |
| "$THIS_SH" -c 'set --; echo _${1?message1}' SHELL |
| "$THIS_SH" -c 'set --; echo _${1:?message1}' SHELL |
| "$THIS_SH" -c 'set --; echo _${1?$msg_unset}' SHELL |
| "$THIS_SH" -c 'set --; echo _${1:?$msg_null_or_unset}' SHELL |
| |
| echo ==== |
| "$THIS_SH" -c 'set -- aaaa; echo _$1' SHELL |
| "$THIS_SH" -c 'set -- aaaa; echo _${1?}' SHELL |
| "$THIS_SH" -c 'set -- aaaa; echo _${1:?}' SHELL |
| "$THIS_SH" -c 'set -- aaaa; echo _${1?word}' SHELL |
| "$THIS_SH" -c 'set -- aaaa; echo _${1:?word}' SHELL |
| "$THIS_SH" -c 'set -- aaaa; echo _${1?$msg_unset}' SHELL |
| "$THIS_SH" -c 'set -- aaaa; echo _${1:?$msg_null_or_unset}' SHELL |
| |
| echo ==== |
| "$THIS_SH" -c 'unset f; echo _$f' SHELL |
| "$THIS_SH" -c 'unset f; echo _${f?}' SHELL |
| "$THIS_SH" -c 'unset f; echo _${f:?}' SHELL |
| "$THIS_SH" -c 'unset f; echo _${f?message3}' SHELL |
| "$THIS_SH" -c 'unset f; echo _${f:?message3}' SHELL |
| "$THIS_SH" -c 'unset f; echo _${f?$msg_unset}' SHELL |
| "$THIS_SH" -c 'unset f; echo _${f:?$msg_null_or_unset}' SHELL |
| |
| echo ==== |
| "$THIS_SH" -c 'f=; echo _$f' SHELL |
| "$THIS_SH" -c 'f=; echo _${f?}' SHELL |
| "$THIS_SH" -c 'f=; echo _${f:?}' SHELL |
| "$THIS_SH" -c 'f=; echo _${f?word}' SHELL |
| "$THIS_SH" -c 'f=; echo _${f:?message4}' SHELL |
| "$THIS_SH" -c 'f=; echo _${f?$msg_unset}' SHELL |
| "$THIS_SH" -c 'f=; echo _${f:?$msg_null_or_unset}' SHELL |
| |
| echo ==== |
| "$THIS_SH" -c 'f=fff; echo _$f' SHELL |
| "$THIS_SH" -c 'f=fff; echo _${f?}' SHELL |
| "$THIS_SH" -c 'f=fff; echo _${f:?}' SHELL |
| "$THIS_SH" -c 'f=fff; echo _${f?word}' SHELL |
| "$THIS_SH" -c 'f=fff; echo _${f:?word}' SHELL |
| "$THIS_SH" -c 'f=fff; echo _${f?$msg_unset}' SHELL |
| "$THIS_SH" -c 'f=fff; echo _${f:?$msg_null_or_unset}' SHELL |