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package installer::patch::Version;


=head1 NAME

    package installer::patch::Version - Functions for handling version numbers.

=cut



# We handle version numbers that consist of three parts: major, minor and micro version number.
my $VersionPartCount = 3;



=head StringToNumberArray($version_string)

    Convert a version string (where the individual parts are separated by '.') into an array of three numbers.
    Missing numbers are filled with 0.

    Returns an array with three elements (major, minor, micro).
=cut
sub StringToNumberArray ($)
{
    my ($version_string) = @_;

    my @version_parts = split(/\./, $version_string);
    while (scalar @version_parts < $VersionPartCount)
    {
        push @version_parts, "0";
    }
    return @version_parts;
}




=head ArrayToDirectoryName (@)

    Return a directory name (without any path) for the given array of version numbers.
    
=cut
sub ArrayToDirectoryName (@)
{
    return "v-".join("-", @_);
}





1;