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It does not make much sense to generate the '-' in a pattern bracket expression using arithmetic expansion, but it does not make sense to forbid it either. This test already passes.
10 lines
100 B
Text
10 lines
100 B
Text
# $FreeBSD$
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case 5 in
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[0$((-9))]) ;;
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*) echo bad1 ;;
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esac
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case - in
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[0$((-9))]) echo bad2 ;;
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esac
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