To answer my own question, this seems to work:
use strict;
use warnings;
BEGIN {
push @DB::typeahead,"b testsub","r";
}
sub testsub {
warn "inside";
}
warn "outside";
testsub();
> perl -d d:/tmp/pm/db_demo.pl
Loading DB routines from perl5db.pl version 1.57
Editor support enabled.
Enter h or 'h h' for help, or 'perldoc perldebug' for more help.
auto(-2) DB<1> b testsub
auto(-1) DB<2> r
outside at d:/tmp/pm/db_demo.pl line 14.
at d:/tmp/pm/db_demo.pl line 14.
DB<2> s
inside at d:/tmp/pm/db_demo.pl line 10.
at d:/tmp/pm/db_demo.pl line 10.
main::testsub() called at d:/tmp/pm/db_demo.pl line 16
DB<2>
all it needs is more syntactic sugar to be able to read a history file.
and a wrapper module could handle the fact that
> @DB::typeahead is not a supported interface and is subject to change in the future
update
here a list of older discussions regarding typeahead, the older the better:
click <Search>
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