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hush: optional support for ${var:N:M} bashism

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function                                             old     new   delta
expand_vars_to_list                                 1999    2183    +184
handle_dollar                                        682     623     -59

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2010-05-21 01:15:42 +02:00
parent 53b513331a
commit 4d8e5fdc1d
3 changed files with 120 additions and 39 deletions
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29
shell/hush_test/hush-vars/param_expand_bash_substring.right Normal file
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hush: syntax error: unterminated ${name}
hush: syntax error: unterminated ${name}
hush: syntax error: unterminated ${name}
hush: syntax error: unterminated ${name}
0123456789
1 =||
1:1 =||
1:1:2=||
1::2 =||
1 =|0123|
1:1 =|123|
1:1:2=|12|
1::2 =|01|
f =||
f:1 =||
f:1:2=||
f::2 =||
f =||
f:1 =||
f:1:2=||
f::2 =||
f =|a|
f:1 =||
f:1:2=||
f::2 =|a|
f =|0123456789|
f:1 =|123456789|
f:1:2=|12|
f::2 =|01|

46
shell/hush_test/hush-vars/param_expand_bash_substring.tests Executable file
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# 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}|"'