https://us.archive.ubuntu.com/ubuntu/ubuntu/pool/universe/libp/libparse-errorstring-perl-perl/?C=M;O=A
Index of /ubuntu/ubuntu/pool/universe/libp/libparse-errorstring-perl-perl
index ofubuntupooluniverselibp
https://manpages.ubuntu.com/manpages/questing/man3/Parse%3A%3AErrorString%3A%3APerl%3A%3AStackItem.3pm.html
Ubuntu Manpage: Parse::ErrorString::Perl::StackItem - a Perl stack item object
a Perl stack item object
ubuntumanpageparseperlstack