| 123456789101112131415 |
- exec 2>&1
- # bash documentation says that precedence order is:
- # ...
- # expr ? expr1 : expr2
- # = *= /= %= += -= <<= >>= &= ^= |=
- # exprA , exprB
- # but in practice, the rules for expr1 and expr2 are different:
- # assignments and commas in expr1 have higher precedence than :?,
- # but in expr2 they haven't:
- # "v ? 1,2 : 3,4" is parsed as "(v ? (1,2) : 3),4"
- # "v ? a=2 : b=4" is parsed as "(v ? (a=1) : b)=4" (thus, this is a syntax error)
- echo 4:$((0 ? 1,2 : 3,4))
- echo 4:$((1 ? 1,2 : 3,4))
- echo 4:"$((0 ? 1,2 : 3,4))"
- echo 4:"$((1 ? 1,2 : 3,4))"
|
