here's what i've got right now: 
{
    local $/ = undef;
    $_ = <>;
}

my @mails = split /\nFrom .*\n/m;

[download]
however i have to read the entire file into memory, and they're big (>30MB). i would like to process the file line-by-line to get the same @mails array, so i don't have to read the whole damn thing into a scalar. how should i go about doing this?

i have a feeling i need to put the split in a loop, but i don't know where to begin. i'm a regexp newbie which doesn't help either.

(BTW i am aware of the Mail::Folder::Mbox and Mail::Box::Mbox modules on CPAN but they're overkill for what i want.)

In reply to stream parsing an mbox file by johnfoobar

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