#! /usr/bin/env perl # -*- perl -*-
# Copyright (C) 2016-2020 Guido Flohr <guido.flohr@cantanea.com>,
# all rights reserved.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
package MemStream;
use common::sense;
sub TIEHANDLE {
        bless { __buffer => '' }, shift;
}
sub WRITE {
        my ($self, $buffer, $length, $offset) = @_;
        $length ||= length $buffer;
        $offset ||= 0;
        my $chunk = substr $buffer, $offset, $length;
        $self->{__buffer} .= $chunk;
        return length $chunk;
}
sub PRINT {
        my ($self, @chunks) = @_;
        return $self->WRITE (join $,, @chunks);
}
sub CLOSE {
        shift;
}
sub UNTIE {
        shift->CLOSE;
}
sub buffer {
        my ($self) = @_;
        my $buffer = $self->{__buffer};
        $self->{__buffer} = '';
        return $buffer;
}
1;