package C4::Scan; #asummes C4/Scan.pm use strict; require Exporter; use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS); # set the version for version checking $VERSION = 0.01; @ISA = qw(Exporter); @EXPORT = qw(&getbarcode); %EXPORT_TAGS = ( ); # eg: TAG => [ qw!name1 name2! ], # your exported package globals go here, # as well as any optionally exported functions @EXPORT_OK = qw($Var1 %Hashit); # non-exported package globals go here use vars qw(@more $stuff); # initalize package globals, first exported ones my $Var1 = ''; my %Hashit = (); # then the others (which are still accessible as $Some::Module::stuff) my $stuff = ''; my @more = (); # all file-scoped lexicals must be created before # the functions below that use them. # file-private lexicals go here my $priv_var = ''; my %secret_hash = (); # here's a file-private function as a closure, # callable as &$priv_func; it cannot be prototyped. my $priv_func = sub { # stuff goes here. }; # make all your functions, whether exported or not; sub Getbarcode { } END { } # module clean-up code here (global destructor)