1 # first try some invalid patterns
2 # do all of these in subshells since it's supposed to error out
4 "$THIS_SH" -c 'echo ${:}'
5 "$THIS_SH" -c 'echo ${::}'
6 "$THIS_SH" -c 'echo ${:1}'
7 "$THIS_SH" -c 'echo ${::1}'
9 #this also is not valid in bash, but we accept it:
10 "$THIS_SH" -c 'echo ${var:}'
12 # then some funky ones
13 # UNFIXED BUG: this should work: "$THIS_SH" -c 'echo ${?:0}'
16 set --; echo "1 =|${1}|"
17 set --; echo "1:1 =|${1:1}|"
18 set --; echo "1:1:2=|${1:1:2}|"
19 set --; echo "1::2 =|${1::2}|"
20 set --; echo "1:1: =|${1:1:}|"
21 set --; echo "1:: =|${1::}|"
23 set -- 0123; echo "1 =|${1}|"
24 set -- 0123; echo "1:1 =|${1:1}|"
25 set -- 0123; echo "1:1:2=|${1:1:2}|"
26 set -- 0123; echo "1::2 =|${1::2}|"
27 set -- 0123; echo "1:1: =|${1:1:}|"
28 set -- 0123; echo "1:: =|${1::}|"
30 unset f; echo "f =|$f|"
31 unset f; echo "f:1 =|${f:1}|"
32 unset f; echo "f:1:2=|${f:1:2}|"
33 unset f; echo "f::2 =|${f::2}|"
34 unset f; echo "f:1: =|${f:1:}|"
35 unset f; echo "f:: =|${f::}|"
38 f=; echo "f:1 =|${f:1}|"
39 f=; echo "f:1:2=|${f:1:2}|"
40 f=; echo "f::2 =|${f::2}|"
41 f=; echo "f:1: =|${f:1:}|"
42 f=; echo "f:: =|${f::}|"
45 f=a; echo "f:1 =|${f:1}|"
46 f=a; echo "f:1:2=|${f:1:2}|"
47 f=a; echo "f::2 =|${f::2}|"
48 f=a; echo "f:1: =|${f:1:}|"
49 f=a; echo "f:: =|${f::}|"
51 f=0123456789; echo "f =|$f|"
52 f=0123456789; echo "f:1 =|${f:1}|"
53 f=0123456789; echo "f:1:2=|${f:1:2}|"
54 f=0123456789; echo "f::2 =|${f::2}|"
55 f=0123456789; echo "f:1: =|${f:1:}|"
56 f=0123456789; echo "f:: =|${f::}|"
58 echo "Substrings with expressions"
59 f=01234567; echo 'f '"=|$f|"
60 f=01234567; echo 'f:1+1:2+2 '"=|${f:1+1:2+2}|"
61 f=01234567; echo 'f:-1:2+2 '"=|${f:-1:2+2}|"
62 f=01234567; echo 'f:1:f '"=|${f:1:f}|"
63 f=01234567; echo 'f:1:$f '"=|${f:1:$f}|"
64 f=01234567; echo 'f:1:${f} '"=|${f:1:${f}}|"
65 f=01234567; echo 'f:1:${f:3:1} '"=|${f:1:${f:3:1}}|"
66 f=01234567; echo 'f:1:1`echo 1`'"=|${f:1:`echo 1`}|"