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## compare_shells: dash bash mksh
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# Corner cases in var sub. Maybe rename this file.
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# NOTE: ZSH has interesting behavior, like echo hi > "$@" can write to TWO
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# FILES!
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echo ${a&}
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## stdout-json: ""
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## status: 2
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## OK bash/mksh status: 1
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# NOTE: This bug was in bash 4.3 but fixed in bash 4.4.
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echo ${foo:-$({ ls /bin/ls; })}
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## stdout: /bin/ls
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bar=ZZ
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echo ${foo:-${bar}}
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## stdout: ZZ
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# bash - ambiguous redirect -- yeah I want this error
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# - But I want it at PARSE time? So is there a special DollarAtPart?
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# MultipleArgsPart?
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# mksh - tries to create '_tmp/var-sub1 _tmp/var-sub2'
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# dash - tries to create '_tmp/var-sub1 _tmp/var-sub2'
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fun() {
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echo hi > "$@"
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}
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fun _tmp/var-sub1 _tmp/var-sub2
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## status: 1
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## OK dash status: 2
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# All of them give errors:
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# dash - bad fd number, parse error?
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# bash - ambiguous redirect
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# mksh - illegal file descriptor name
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set -- '2 3' 'c d'
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echo hi 1>& "$@"
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## status: 1
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## OK dash status: 2
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# bash - syntax error
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# dash - syntax error: end of file unexpected
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# mksh - runtime error: here document unclosed
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#
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# What I want is syntax error: bad delimiter!
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#
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# This means that "$@" should be part of the parse tree then? Anything that
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# involves more than one token.
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fun() {
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cat << "$@"
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hi
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1 2
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}
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fun 1 2
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## status: 2
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## stdout-json: ""
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## OK mksh status: 1
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