How to set hist buf size in perldb?

[bill]

How can I set the number of lines kept in perldb's history buffer?
As far as I can tell, my perldb uses Term::ReadLine:erl, but I
have not been able to figure out how to change the size of its
history buffer.

Thanks!

bill

 

[kj]

How can I set the number of lines kept in perldb's history buffer?
As far as I can tell, my perldb uses Term::ReadLine:erl, but I
have not been able to figure out how to change the size of its
history buffer.

I'm sure there are more civilized ways of doing this, but if you
want to *increase* the buffer size from its default of 100, try
something like

$readline::rl_MaxHistorySize = 1000

at the DB prompt.

One can decrease the buffer size similarly, but unless the history
for the session you want to affect is shorter than the new buffer
size, it can be messy. See Term/ReadLine/readline.pm.