On 01/28/2015 03:45 PM, Chet Ramey wrote:
On 1/28/15 4:48 AM, Nikolai Kondrashov wrote:
However, the newer versions would fail like this:
bash: command substitution: line 2: syntax error near unexpected token `('
bash: command substitution: line 2: `echo !(*))'
Is this intended? If not, can this be fixed?
As of bash-4.3.23, process substitutions are parsed by the parent shell in
order to correctly find the closing `)', just like command substitutions.
Read the thread beginning at
http://lists.gnu.org/archive/html/bug-bash/2014-06/msg00056.html
for a discussion of the problem.
Since the construct is parsed before being executed, extglob is not
enabled during parsing. This is a problem similar to enabling extglob
in shell functions.
Understood. Thank you, Chet.
This is unfortunate, but I suspect parser cleanliness is worth it.
Nick
