[3.0.13] declare -a a=('$0')

[Stephane Chazelas]

declare seems to evaluate its arguments:

bash-3.00$ b='$0'
bash-3.00$ echo "$b"
$0
bash-3.00$ declare -a a=("$b")
bash-3.00$ echo "$a"
./bash
bash-3.00$ echo "$BASH_VERSION"
3.00.13(1)-release

bash-3.00$ b=")"
bash-3.00$ declare -a a=("$b")
bash-3.00$ echo "$a"

bash-3.00$

bash-3.00$ b="("
bash-3.00$ declare -a a=("$b")
bash: bad substitution: no closing `)' in (()

See also:
http://groups.google.com/groups?selm=slrnck0vn0.1qc.stephane.chazelas@spam.is.invalid

zsh behavior (report a syntax error) is less misleading.

regards,
Stephane

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