[sr-dev] dialplan and empty repl_exp

[Juha Heinanen]

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.

- juha