1 files changed, 96 insertions, 0 deletions
diff --git a/scripts/Dpkg/Package.pm b/scripts/Dpkg/Package.pm
new file mode 100644
index 0000000..4741a6f
--- /dev/null
+++ b/scripts/Dpkg/Package.pm
@@ -0,0 +1,96 @@
+# Copyright © 2006 Frank Lichtenheld <djpig@debian.org>
+# Copyright © 2007-2009, 2012-2013 Guillem Jover <guillem@debian.org>
+# Copyright © 2007 Raphaël Hertzog <hertzog@debian.org>
+#
+# 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 2 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 <https://www.gnu.org/licenses/>.
+
+=encoding utf8
+
+=head1 NAME
+
+Dpkg::Package - package properties handling
+
+=head1 DESCRIPTION
+
+This module provides functions to parse and validate package properties.
+
+B<Note>: This is a private module, its API can change at any time.
+
+=cut
+
+package Dpkg::Package 0.01;
+
+use strict;
+use warnings;
+
+our @EXPORT = qw(
+    pkg_name_is_illegal
+
+    get_source_name
+    set_source_name
+);
+
+use Exporter qw(import);
+
+use Dpkg::ErrorHandling;
+use Dpkg::Gettext;
+
+sub pkg_name_is_illegal($) {
+    my $name = shift // '';
+
+    if ($name eq '') {
+        return g_('may not be empty string');
+    }
+    if ($name =~ m/[^-+.0-9a-z]/op) {
+        return sprintf(g_("character '%s' not allowed"), ${^MATCH});
+    }
+    if ($name !~ m/^[0-9a-z]/o) {
+        return g_('must start with an alphanumeric character');
+    }
+
+    return;
+}
+
+# XXX: Eventually the following functions should be moved as methods for
+# Dpkg::Source::Package.
+
+my $source_name;
+
+sub get_source_name {
+    return $source_name;
+}
+
+sub set_source_name {
+    my $name = shift;
+
+    my $err = pkg_name_is_illegal($name);
+    error(g_("source package name '%s' is illegal: %s"), $name, $err) if $err;
+
+    if (not defined $source_name) {
+        $source_name = $name;
+    } elsif ($name ne $source_name) {
+        error(g_('source package has two conflicting values - %s and %s'),
+              $source_name, $name);
+    }
+}
+
+=head1 CHANGES
+
+=head2 Version 0.xx
+
+This is a private module.
+
+=cut
+
+1;