[sr-dev] dialplan and empty repl_exp

[Richard Fuchs]

On 05/07/12 14:11, Juha Heinanen wrote:
> Andreas Granig writes:
>
>> If the dialplan entry has match_exp="^999" and subst_exp="^999" and
>> repl_exp="" and my $rU is "999123", I'd expect $var(out) to be "123",
>> because an empty replacement part is perfectly valid for a regex.
>
> repl_exp is not regex.  it is replacement expression where you can refer
> to () parts of subt_exp as \1, \2, etc.  if repl_exp is empty, result is
> empty.

But why are parts NOT matched by the subst_exp stripped from the output 
string? With a subst_exp of "(.)" and a repl_exp of "\1", I'd expect the 
output string to be unchanged.

BR
Richard