cc: [email protected]
Subject: Re: [ast-users] Substitution expansion no longer re-evaluates
replacement.
--------
> Hi, Since sometime after 93u, "${x[@]/pat/str}" no longer re-evaluates
> expansion
> s in the replacement string for multi-word expansions.
>
> $ ksh -c 'x=({1..5}); printf %s\\n
> "${x[*]/+([[:digit:]])/$((.sh.match[1]*2))}"
> "${.sh.version}"'
> 2 4 6 8 10
> Version JM 93u 2011-02-08
> $ ksh+ -c 'x=({1..5}); printf %s\\n
> "${x[*]/+([[:digit:]])/$((.sh.match[1]*2))}
> " "${.sh.version}"'
> 0 0 0 0 0
> Version AJM 93v- 2013-02-13
> --
> Dan Douglas
>
The behavior has been restored in the next ksh93v- alpha. The ksh93u version
that used to work had a bug which caused a core dump if the replacment
string contained a ${var/pattern/string} in the replacement string.
David Korn
[email protected]
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