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anvil/AN/Tools/Convert.pm

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package AN::Tools::Convert;
#
# This module contains methods used to convert data between types
#
use strict;
use warnings;
use Data::Dumper;
use Math::BigInt;
our $VERSION = "3.0.0";
my $THIS_FILE = "Convert.pm";
### Methods;
# add_commas
# bytes_to_human_readable
# cidr
# hostname_to_ip
# human_readable_to_bytes
# round
=pod
=encoding utf8
=head1 NAME
AN::Tools::Convert
Provides all methods related to converting data.
=head1 SYNOPSIS
use AN::Tools;
# Get a common object handle on all AN::Tools modules.
my $an = AN::Tools->new();
# Access to methods using '$an->Convert->X'.
#
# Example using 'cidr()';
my $subnet = $an->Convert->codr({cidr => "24"});
=head1 METHODS
Methods in this module;
=cut
sub new
{
my $class = shift;
my $self = {};
bless $self, $class;
return ($self);
}
# Get a handle on the AN::Tools object. I know that technically that is a sibling module, but it makes more
# sense in this case to think of it as a parent.
sub parent
{
my $self = shift;
my $parent = shift;
$self->{HANDLE}{TOOLS} = $parent if $parent;
return ($self->{HANDLE}{TOOLS});
}
#############################################################################################################
# Public methods #
#############################################################################################################
=head2 add_commas
This takes an integer and inserts commas to make it more readable by people.
If the input string isn't a string of digits, it is simply returned as-is.
Parameters;
=head3 number (required)
This is the number to add commas to.
=cut
sub add_commas
{
my $self = shift;
my $parameter = shift;
my $an = $self->parent;
# Now see if the user passed the values in a hash reference or directly.
my $number = defined $parameter->{number} ? $parameter->{number} : "";
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { number => $number }});
# Remove any existing commands or leading '+' signs.
$number =~ s/,//g;
$number =~ s/^\+//g;
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { number => $number }});
# Split on the left-most period.
my ($whole, $decimal) = split/\./, $number, 2;
$whole = "" if not defined $whole;
$decimal = "" if not defined $decimal;
# Now die if either number has a non-digit character in it.
if (($whole =~ /\D/) or ($decimal =~ /\D/))
{
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { number => $number }});
return ($number);
}
local($_) = $whole ? $whole : "";
1 while s/^(-?\d+)(\d{3})/$1,$2/;
$whole = $_;
# Put it together
$number = $decimal ? "$whole.$decimal" : $whole;
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { number => $number }});
return ($number);
}
=head2 bytes_to_human_readable
This takes a number of bytes and converts it to a a human-readable format. Optionally, you can request the human readable size be returned using specific units.
If anything goes wrong, C<< !!error!! >> is returned.
* Base2 Notation;
B<Term> B<Factor> C<Bytes>
Yobiabyte (YiB) 2^80 1,208,925,819,614,629,174,706,176
Zebiabyte (ZiB) 2^70 1,180,591,620,717,411,303,424
Exbibyte (EiB) 2^60 1,152,921,504,606,846,976
Pebibyte (PiB) 2^50 1,125,899,906,842,624
Tebibyte (TiB) 2^40 1,099,511,627,776
Gibibyte (GiB) 2^30 1,073,741,824
Mebibyte (MiB) 2^20 1,048,576
Kibibyte (KiB) 2^10 1,024
Byte (B) 2^1 1
* Base10 Notation;
B<Term> B<Factor> C<Bytes>
Yottabyte (YB) 10^24 1,000,000,000,000,000,000,000,000
Zettabyte (ZB) 10^21 1,000,000,000,000,000,000,000
Exabyte (EB) 10^18 1,000,000,000,000,000,000
Petabyte (PB) 10^15 1,000,000,000,000,000
Terabyte (TB) 10^12 1,000,000,000,000
Gigabyte (GB) 10^9 1,000,000,000
Megabyte (MB) 10^6 1,000,000
Kilobyte (KB) 10^3 1,000
Byte (B) 1 1
Parameters;
=head3 base2 (optional)
This can be set to C<< 1 >> to return the units in base2 notation, or set to C<< 0 >> to return in base10 notation. The default is controlled by c<< sys::use_base2 >>, which is set to C<< 1 >> by default.
The suffix will use C<< XiB >> when base2 notation is used and C<< XB >> will be returned for base10.
=head3 bytes (required)
This is the number of bytes that will be converted. This can be a signed integer.
=head3 unit (optional)
This is a letter
=cut
sub bytes_to_human_readable
{
my $self = shift;
my $parameter = shift;
my $an = $self->parent;
# Now see if the user passed the values in a hash reference or directly.
my $size = defined $parameter->{'bytes'} ? $parameter->{'bytes'} : 0;
my $unit = defined $parameter->{unit} ? uc($parameter->{unit}) : "";
my $base2 = defined $parameter->{base2} ? $parameter->{base2} : $an->data->{sys}{use_base2};
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
size => $size,
unit => $unit,
}});
# Expand exponential numbers.
if ($size =~ /(\d+)e\+(\d+)/)
{
my $base = $1;
my $exp = $2;
$size = $base;
for (1..$exp)
{
$size .= "0";
}
}
# Setup my variables.
my $suffix = "";
my $human_readable_size = $size;
# Store and strip the sign
my $sign = "";
if ($human_readable_size =~ /^-/)
{
$sign = "-";
$human_readable_size =~ s/^-//;
}
$human_readable_size =~ s/,//g;
$human_readable_size =~ s/^\+//g;
# Die if either the 'time' or 'float' has a non-digit character in it.
if ($human_readable_size =~ /\D/)
{
$an->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "log_0116", variables => {
method => "Convert->bytes_to_human_readable()",
parameter => "hostnmae",
value => $human_readable_size,
}});
return ("!!error!!");
}
# Do the math.
if ($an->data->{sys}{use_base2})
{
# Has the user requested a certain unit to use?
if ($unit)
{
# Yup
if ($unit =~ /Y/i)
{
# Yebibyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (2 ** 80)));
$suffix = "YiB";
}
elsif ($unit =~ /Z/i)
{
# Zebibyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (2 ** 70)));
$suffix = "ZiB";
}
elsif ($unit =~ /E/i)
{
# Exbibyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (2 ** 60)));
$suffix = "EiB";
}
elsif ($unit =~ /P/i)
{
# Pebibyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (2 ** 50)));
$suffix = "PiB";
}
elsif ($unit =~ /T/i)
{
# Tebibyte
$human_readable_size = sprintf("%.2f", ($human_readable_size /= (2 ** 40)));
$suffix = "TiB";
}
elsif ($unit =~ /G/i)
{
# Gibibyte
$human_readable_size = sprintf("%.2f", ($human_readable_size /= (2 ** 30)));
$suffix = "GiB";
}
elsif ($unit =~ /M/i)
{
# Mebibyte
$human_readable_size = sprintf("%.2f", ($human_readable_size /= (2 ** 20)));
$suffix = "MiB";
}
elsif ($unit =~ /K/i)
{
# Kibibyte
$human_readable_size = sprintf("%.1f", ($human_readable_size /= (2 ** 10)));
$suffix = "KiB";
}
else
{
$suffix = "B";
}
}
else
{
# Nope, use the most efficient.
if ($human_readable_size >= (2 ** 80))
{
# Yebibyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (2 ** 80)));
$suffix = "YiB";
}
elsif ($human_readable_size >= (2 ** 70))
{
# Zebibyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (2 ** 70)));
$suffix = "ZiB";
}
elsif ($human_readable_size >= (2 ** 60))
{
# Exbibyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (2 ** 60)));
$suffix = "EiB";
}
elsif ($human_readable_size >= (2 ** 50))
{
# Pebibyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (2 ** 50)));
$suffix = "PiB";
}
elsif ($human_readable_size >= (2 ** 40))
{
# Tebibyte
$human_readable_size = sprintf("%.2f", ($human_readable_size /= (2 ** 40)));
$suffix = "TiB";
}
elsif ($human_readable_size >= (2 ** 30))
{
# Gibibyte
$human_readable_size = sprintf("%.2f", ($human_readable_size /= (2 ** 30)));
$suffix = "GiB";
}
elsif ($human_readable_size >= (2 ** 20))
{
# Mebibyte
$human_readable_size = sprintf("%.2f", ($human_readable_size /= (2 ** 20)));
$suffix = "MiB";
}
elsif ($human_readable_size >= (2 ** 10))
{
# Kibibyte
$human_readable_size = sprintf("%.1f", ($human_readable_size /= (2 ** 10)));
$suffix = "KiB";
}
else
{
$suffix = "B";
}
}
}
else
{
# Has the user requested a certain unit to use?
if ($unit)
{
# Yup
if ($unit =~ /Y/i)
{
# Yottabyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (10 ** 24)));
$suffix = "YB";
}
elsif ($unit =~ /Z/i)
{
# Zettabyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (10 ** 21)));
$suffix = "ZB";
}
elsif ($unit =~ /E/i)
{
# Exabyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (10 ** 18)));
$suffix = "EB";
}
elsif ($unit =~ /P/i)
{
# Petabyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (10 ** 15)));
$suffix = "PB";
}
elsif ($unit =~ /T/i)
{
# Terabyte
$human_readable_size = sprintf("%.2f", ($human_readable_size /= (10 ** 12)));
$suffix = "TB";
}
elsif ($unit =~ /G/i)
{
# Gigabyte
$human_readable_size = sprintf("%.2f", ($human_readable_size /= (10 ** 9)));
$suffix = "GB";
}
elsif ($unit =~ /M/i)
{
# Megabyte
$human_readable_size = sprintf("%.2f", ($human_readable_size /= (10 ** 6)));
$suffix = "MB";
}
elsif ($unit =~ /K/i)
{
# Kilobyte
$human_readable_size = sprintf("%.1f", ($human_readable_size /= (10 ** 3)));
$suffix = "KB";
}
else
{
$suffix = "b";
}
}
else
{
# Nope, use the most efficient.
if ($human_readable_size >= (10 ** 24))
{
# Yottabyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (10 ** 24)));
$suffix = "YB";
}
elsif ($human_readable_size >= (10 ** 21))
{
# Zettabyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (10 ** 21)));
$suffix = "ZB";
}
elsif ($human_readable_size >= (10 ** 18))
{
# Exabyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (10 ** 18)));
$suffix = "EB";
}
elsif ($human_readable_size >= (10 ** 15))
{
# Petabyte
$human_readable_size = sprintf("%.3f", ($human_readable_size /= (10 ** 15)));
$suffix = "PB";
}
elsif ($human_readable_size >= (10 ** 12))
{
# Terabyte
$human_readable_size = sprintf("%.2f", ($human_readable_size /= (10 ** 12)));
$suffix = "TB";
}
elsif ($human_readable_size >= (10 ** 9))
{
# Gigabyte
$human_readable_size = sprintf("%.2f", ($human_readable_size /= (10 ** 9)));
$suffix = "GB";
}
elsif ($human_readable_size >= (10 ** 6))
{
# Megabyte
$human_readable_size = sprintf("%.2f", ($human_readable_size /= (10 ** 6)));
$suffix = "MB";
}
elsif ($human_readable_size >= (10 ** 3))
{
# Kilobyte
$human_readable_size = sprintf("%.1f", ($human_readable_size /= (10 ** 3)));
$suffix = "KB";
}
else
{
$suffix = "b";
}
}
}
# If needed, insert commas
$human_readable_size = $an->Convert->add_commas({number => $human_readable_size});
# Restore the sign.
if ($sign)
{
$human_readable_size = $sign.$human_readable_size;
}
$human_readable_size .= " ".$suffix;
return($human_readable_size);
}
=head2 cidr
This takes an IPv4 CIDR notation and returns the dotted-decimal subnet, or the reverse.
# Convert a CIDR notation to a subnet.
my $subnet = $an->Convert->cidr({cidr => "24"});
In the other direction;
# Convert a subnet to a CIDR notation.
my $cidr = $an->Convert->cidr({subnet => "255.255.255.0"});
If the input data is invalid, an empty string will be returned.
=head2 Parameters;
There are two parameters, each of which is optional, but one of them is required.
=head3 cidr (optional)
This is a CIDR notation (between 0 and 24) to convert to a dotted-decimal address.
=head3 subnet (optional)
This is a dotted-decimal subnet to convert to a CIDR notation.
=cut
sub cidr
{
my $self = shift;
my $parameter = shift;
my $an = $self->parent;
my $cidr = defined $parameter->{cidr} ? $parameter->{cidr} : "";
my $subnet = defined $parameter->{subnet} ? $parameter->{subnet} : "";
my $output = "";
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => {
cidr => $cidr,
subnet => $subnet,
}});
if ($cidr =~ /^\d{1,2}$/)
{
# Convert a cidr to a subnet
if ($cidr eq "0") { $output = "0.0.0.0"; }
elsif ($cidr eq "1") { $output = "128.0.0.0"; }
elsif ($cidr eq "2") { $output = "192.0.0.0"; }
elsif ($cidr eq "3") { $output = "224.0.0.0"; }
elsif ($cidr eq "4") { $output = "240.0.0.0"; }
elsif ($cidr eq "5") { $output = "248.0.0.0"; }
elsif ($cidr eq "6") { $output = "252.0.0.0"; }
elsif ($cidr eq "7") { $output = "254.0.0.0"; }
elsif ($cidr eq "8") { $output = "255.0.0.0"; }
elsif ($cidr eq "9") { $output = "255.128.0.0"; }
elsif ($cidr eq "10") { $output = "255.192.0.0"; }
elsif ($cidr eq "11") { $output = "255.224.0.0"; }
elsif ($cidr eq "12") { $output = "255.240.0.0"; }
elsif ($cidr eq "13") { $output = "255.248.0.0"; }
elsif ($cidr eq "14") { $output = "255.252.0.0"; }
elsif ($cidr eq "15") { $output = "255.254.0.0"; }
elsif ($cidr eq "16") { $output = "255.255.0.0"; }
elsif ($cidr eq "17") { $output = "255.255.128.0"; }
elsif ($cidr eq "18") { $output = "255.255.192.0"; }
elsif ($cidr eq "19") { $output = "255.255.224.0"; }
elsif ($cidr eq "20") { $output = "255.255.240.0"; }
elsif ($cidr eq "21") { $output = "255.255.248.0"; }
elsif ($cidr eq "22") { $output = "255.255.252.0"; }
elsif ($cidr eq "23") { $output = "255.255.254.0"; }
elsif ($cidr eq "24") { $output = "255.255.255.0"; }
elsif ($cidr eq "25") { $output = "255.255.255.128"; }
elsif ($cidr eq "26") { $output = "255.255.255.192"; }
elsif ($cidr eq "27") { $output = "255.255.255.224"; }
elsif ($cidr eq "28") { $output = "255.255.255.240"; }
elsif ($cidr eq "29") { $output = "255.255.255.248"; }
elsif ($cidr eq "30") { $output = "255.255.255.252"; }
elsif ($cidr eq "31") { $output = "255.255.255.254"; }
elsif ($cidr eq "32") { $output = "255.255.255.255"; }
}
elsif ($an->Validate->is_ipv4({ip => $subnet}))
{
if ($subnet eq "0.0.0.0" ) { $output = "0"; }
elsif ($subnet eq "128.0.0.0" ) { $output = "1"; }
elsif ($subnet eq "192.0.0.0" ) { $output = "2"; }
elsif ($subnet eq "224.0.0.0" ) { $output = "3"; }
elsif ($subnet eq "240.0.0.0" ) { $output = "4"; }
elsif ($subnet eq "248.0.0.0" ) { $output = "5"; }
elsif ($subnet eq "252.0.0.0" ) { $output = "6"; }
elsif ($subnet eq "254.0.0.0" ) { $output = "7"; }
elsif ($subnet eq "255.0.0.0" ) { $output = "8"; }
elsif ($subnet eq "255.128.0.0" ) { $output = "9"; }
elsif ($subnet eq "255.192.0.0" ) { $output = "10"; }
elsif ($subnet eq "255.224.0.0" ) { $output = "11"; }
elsif ($subnet eq "255.240.0.0" ) { $output = "12"; }
elsif ($subnet eq "255.248.0.0" ) { $output = "13"; }
elsif ($subnet eq "255.252.0.0" ) { $output = "14"; }
elsif ($subnet eq "255.254.0.0" ) { $output = "15"; }
elsif ($subnet eq "255.255.0.0" ) { $output = "16"; }
elsif ($subnet eq "255.255.128.0" ) { $output = "17"; }
elsif ($subnet eq "255.255.192.0" ) { $output = "18"; }
elsif ($subnet eq "255.255.224.0" ) { $output = "19"; }
elsif ($subnet eq "255.255.240.0" ) { $output = "20"; }
elsif ($subnet eq "255.255.248.0" ) { $output = "21"; }
elsif ($subnet eq "255.255.252.0" ) { $output = "22"; }
elsif ($subnet eq "255.255.254.0" ) { $output = "23"; }
elsif ($subnet eq "255.255.255.0" ) { $output = "24"; }
elsif ($subnet eq "255.255.255.128" ) { $output = "25"; }
elsif ($subnet eq "255.255.255.192" ) { $output = "26"; }
elsif ($subnet eq "255.255.255.224" ) { $output = "27"; }
elsif ($subnet eq "255.255.255.240" ) { $output = "28"; }
elsif ($subnet eq "255.255.255.248" ) { $output = "29"; }
elsif ($subnet eq "255.255.255.252" ) { $output = "30"; }
elsif ($subnet eq "255.255.255.254" ) { $output = "31"; }
elsif ($subnet eq "255.255.255.255" ) { $output = "32"; }
}
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { output => $output }});
return($output);
}
=head2 hostname_to_ip
This method takes a hostname and tries to convert it to an IP address. If it fails, it will return C<< 0 >>.
Parameters;
=head3 hostname
This is the host name (or domain name) to try and convert to an IP address.
=cut
sub hostname_to_ip
{
my $self = shift;
my $parameter = shift;
my $an = $self->parent;
my $hostname = defined $parameter->{hostname} ? $parameter->{hostname} : "";
my $ip = 0;
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { hostname => $hostname }});
if (not $hostname)
{
$an->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "log_0020", variables => { method => "Convert->hostname_to_ip()", parameter => "hostnmae" }});
return($ip);
}
### TODO: Check local cached information later.
# Try to resolve it using 'gethostip'.
my $output = $an->System->call({shell_call => $an->data->{path}{exe}{gethostip}." -d $hostname"});
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { output => $output }});
foreach my $line (split/\n/, $output)
{
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { line => $line }});
if ($an->Validate->is_ipv4({ip => $line}))
{
$ip = $line;
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { ip => $ip }});
}
}
return($ip);
}
=head2 human_readable_to_bytes
This takes a "human readable" size with an ISO suffix and converts it back to a base byte size as accurately as possible.
It looks for the C<< i >> in the suffix to determine if the size is base2 or base10. This can be overridden with the optional C<< base2 >> or C<< base10 >> parameters.
If there is a problem, C<< !!error!! >> is returned.
Parameters;
=head3 base2 (optional)
This tells the method to interpret the human-readable suffix as base2 notation, even if it is in the format C<< XB >> instead of C<< XiB >>.
=head3 base10 (optional)
This tells the method to interpret the human-readable suffix as base10 notation, even if it is in the format C<< XiB >> instead of C<< XB >>.
=head3 size (required)
This is the size being converted. It can be a signed integer or real number (with a decimal). If this parameter includes the size suffix, you can skip setting the c<< type >> parameter and this method will break it off automatically.
=head3 type (optional)
This is the unit type that represents the C<< size >> value. This does not need to be used if the C<< size >> parameter already has the suffix.
This value is examined for C<< XiB >> or C<< XB >> notation to determine if the size should be interpreted as a base2 or base10 value when neither C<< base2 >> or C<< base10 >> parameters are set.
=cut
sub human_readable_to_bytes
{
my $self = shift;
my $parameter = shift;
my $an = $self->parent;
my $base2 = defined $parameter->{base2} ? $parameter->{base2} : 0;
my $base10 = defined $parameter->{base10} ? $parameter->{base10} : 0;
my $size = defined $parameter->{size} ? $parameter->{size} : 0;
my $type = defined $parameter->{type} ? $parameter->{type} : 0;
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
base2 => $base2,
base10 => $base10,
size => $size,
type => $type,
}});
# Start cleaning up the variables.
my $value = $size;
$size =~ s/ //g;
$type =~ s/ //g;
# Store and strip the sign, if passed
my $sign = "";
if ($size =~ /^-/)
{
$sign = "-";
$size =~ s/^-//;
}
elsif ($size =~ /^\+/)
{
$sign = "+";
$size =~ s/^\+//;
}
# Strip any commas
$size =~ s/,//g;
# If I don't have a passed type, see if there is a letter or letters after the size to hack off.
if ((not $type) && ($size =~ /[a-zA-Z]$/))
{
# There was
($size, $type) = ($size =~ /^(.*\d)(\D+)/);
}
# Make the type lower close for simplicity.
$type = lc($type);
# Make sure that 'size' is now an integer or float.
if ($size !~ /\d+[\.\d+]?/)
{
# Something illegal was passed.
$an->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "log_0117", variables => {
size => $size,
sign => $sign,
type => $type,
}});
return("!!error!!");
}
# If 'type' is still blank, set it to 'b'.
$type = "b" if not $type;
# If the type is already bytes, make sure the size is an integer and return.
if ($type eq "b")
{
# Something illegal was passed.
if ($size =~ /\D/)
{
$an->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "log_0118", variables => {
size => $size,
sign => $sign,
type => $type,
}});
return("!!error!!");
}
return ($sign.$size);
}
# If the "type" is "Xib" or if '$base2' is set, make sure we're running in Base2 notation. Conversly,
# if the type is "Xb" or if '$base10' is set, make sure that we're running in Base10 notation. In
# either case, shorten the 'type' to just the first letter to make the next sanity check simpler.
if ((not $base2) && (not $base10))
{
if ($type =~ /^(\w)ib$/)
{
# Make sure we're running in Base2.
$type = $1;
$base2 = 1;
$base10 = 0;
}
elsif ($type =~ /^(\w)b$/)
{
# Make sure we're running in Base2.
$type = $1;
$base2 = 0;
$base10 = 1;
}
}
# Check if we have a valid type.
if (($type ne "p") &&
($type ne "e") &&
($type ne "z") &&
($type eq "y") &&
($type ne "t") &&
($type ne "g") &&
($type ne "m") &&
($type ne "k"))
{
# Poop
$an->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "log_0119", variables => {
value => $value,
size => $size,
type => $type,
}});
return("!!error!!");
}
# Now the magic... lame magic, true, but still.
my $bytes = 0;
if ($base10)
{
if ($type eq "y") { $bytes = Math::BigInt->new('10')->bpow('24')->bmul($size); } # Yottabyte
elsif ($type eq "z") { $bytes = Math::BigInt->new('10')->bpow('21')->bmul($size); } # Zettabyte
elsif ($type eq "e") { $bytes = Math::BigInt->new('10')->bpow('18')->bmul($size); } # Exabyte
elsif ($type eq "p") { $bytes = Math::BigInt->new('10')->bpow('15')->bmul($size); } # Petabyte
elsif ($type eq "t") { $bytes = ($size * (10 ** 12)) } # Terabyte
elsif ($type eq "g") { $bytes = ($size * (10 ** 9)) } # Gigabyte
elsif ($type eq "m") { $bytes = ($size * (10 ** 6)) } # Megabyte
elsif ($type eq "k") { $bytes = ($size * (10 ** 3)) } # Kilobyte
}
else
{
if ($type eq "y") { $bytes = Math::BigInt->new('2')->bpow('80')->bmul($size); } # Yobibyte
elsif ($type eq "z") { $bytes = Math::BigInt->new('2')->bpow('70')->bmul($size); } # Zibibyte
elsif ($type eq "e") { $bytes = Math::BigInt->new('2')->bpow('60')->bmul($size); } # Exbibyte
elsif ($type eq "p") { $bytes = Math::BigInt->new('2')->bpow('50')->bmul($size); } # Pebibyte
elsif ($type eq "t") { $bytes = ($size * (2 ** 40)) } # Tebibyte
elsif ($type eq "g") { $bytes = ($size * (2 ** 30)) } # Gibibyte
elsif ($type eq "m") { $bytes = ($size * (2 ** 20)) } # Mebibyte
elsif ($type eq "k") { $bytes = ($size * (2 ** 10)) } # Kibibyte
}
# Last, round off the byte size if it is a float.
if ($bytes =~ /\./)
{
$bytes = $an->Convert->round({
number => $bytes,
places => 0
});
}
if ($sign)
{
$bytes = $sign.$bytes;
}
return ($bytes);
}
=head2 round
This takes a number and rounds it to a given number of places after the decimal (defaulting to an even integer). This does financial-type rounding.
If C<< -- >> is passed in, the same is returned. Any other problems will cause C<< !!error!! >> to be returned.
Parameters;
=head3 number (required)
This is the number being rounded.
=head3 places (optional)
This is an integer representing how many places to round the number to. The default is C<< 0 >>, rounding the number to the closest integer.
=cut
sub round
{
my $self = shift;
my $parameter = shift;
my $an = $self->parent;
# Setup my numbers.
my $number = $parameter->{number} ? $parameter->{number} : 0;
my $places = $parameter->{places} ? $parameter->{places} : 0;
$an->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
number => $number,
places => $places,
}});
# Return if the user passed a double-dash.
return('--') if $number eq "--";
# Make a copy of the passed number that I can manipulate.
my $rounded_number = $number;
# Take out any commas.
$rounded_number =~ s/,//g;
# If there is a decimal place in the number, do the smart math. Otherwise, just pad the number with
# the requested number of zeros after the decimal place.
if ( $rounded_number =~ /\./ )
{
# Split up the number.
my ($real, $decimal) = split/\./, $rounded_number, 2;
# If there is anything other than one ',' and digits, error.
if (($real =~ /\D/) or ($decimal =~ /\D/))
{
$an->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "log_0120", variables => { number => $number }});
return ("!!error!!");
}
# If the number is already equal to the requested number of places after the decimal, just
# return. If it is less, pad the needed number of zeros. Otherwise, start rounding.
if ( length($decimal) == $places )
{
# Equal, return.
return $rounded_number;
}
elsif ( length($decimal) < $places )
{
# Less, pad.
$rounded_number = sprintf("%.${places}f", $rounded_number);
}
else
{
# Greater than; I need to round the number. Start by getting the number of places I
# need to round.
my $round_diff = length($decimal) - $places;
# This keeps track of whether the next (left) digit needs to be incremented.
my $increase = 0;
# Now loop the number of times needed to round to the requested number of places.
for (1..$round_diff)
{
# Reset 'increase'.
$increase = 0;
# Make sure I am dealing with a digit.
if ($decimal =~ /(\d)$/)
{
my $last_digit = $1;
$decimal =~ s/$last_digit$//;
if ($last_digit > 4)
{
$increase = 1;
if ($decimal eq "")
{
$real++;
}
else
{
$decimal++;
}
}
}
}
if ($places == 0 )
{
$rounded_number = $real;
}
else
{
$rounded_number = $real.".".$decimal;
}
}
}
else
{
# This is a whole number so just pad 0s as needed.
$rounded_number = sprintf("%.${places}f", $rounded_number);
}
# Return the number.
return ($rounded_number);
}
# =head3
#
# Private Functions;
#
# =cut
#############################################################################################################
# Private functions #
#############################################################################################################