NAME PerlIO::via::Limit - PerlIO layer for length restrictions SYNOPSIS use PerlIO::via::Limit; PerlIO::via::Limit->length(20); # - or - use PerlIO::via::Limit length => 20; # reading open( my $fh, "<:via(Limit)", $file ); # writing open( my $fh, ">:via(Limit)", $file ); DESCRIPTION PerlIO::via::Limit implements a PerlIO layer that restricts length of stream. CLASS METHODS length Limit length of stream. Default is undef that means unlimited. sensitive If set true value, an exception will be occurred when stream reaches limit of length. Default is false. use PerlIO::via::Limit sensitive => 1; open( my $in, "<:via(Limit)", $file ) or die; eval { while( <$in> ){ # do something... } };if( $@ ){ # "$in is trying to read exceeding the limit." warn "$@"; } close $in or die; Note that the $@ is a Exception::Class object. BUGS When the exception is thrown by sensitive option, the buffer for reading does not be filled. SEE ALSO PerlIO::via Exception::Class REPOSITORY PerlIO::via::Limit is hosted on github AUTHOR WATANABE Hiroaki This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.