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/*
* This file is part of the ICanBoogie package.
*
* (c) Olivier Laviale <olivier.laviale@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace ICanBoogie\CLDR;
use ICanBoogie\Accessor\AccessorTrait;
/**
* Representation of a number pattern.
*
* @property-read array $format
* @property-read string $positive_prefix Prefix to positive number.
* @property-read string $positive_suffix Suffix to positive number.
* @property-read string $negative_prefix Prefix to negative number.
* @property-read string $negative_suffix Suffix to negative number.
* @property-read int $multiplier 100 for percent, 1000 for per mille.
* @property-read int $decimal_digits The number of required digits after decimal point. The
* string is padded with zeros if there is not enough digits. `-1` means the decimal point should
* be dropped.
* @property-read int $max_decimal_digits The maximum number of digits after decimal point.
* Additional digits will be truncated.
* @property-read int $integer_digits The number of required digits before decimal point. The
* string is padded with zeros if there is not enough digits.
* @property-read int $group_size1 The primary grouping size. `0` means no grouping.
* @property-read int $group_size2 The secondary grouping size. `0` means no secondary grouping
*/
class NumberPattern
{
use AccessorTrait;
/**
* @var NumberPattern[]
*/
static private $instances = [];
/**
* @param string $pattern
*
* @return NumberPattern
*/
static public function from($pattern)
{
if (isset(self::$instances[$pattern]))
{
return self::$instances[$pattern];
}
$format = NumberPatternParser::parse($pattern);
return self::$instances[$pattern] = new static($pattern, $format);
}
/**
* @var string
*/
private $pattern;
/**
* @var array
*/
private $format;
/**
* @return array
*/
protected function get_format()
{
return $this->format;
}
/**
* @param string $pattern
* @param array $format
*/
private function __construct($pattern, array $format)
{
$this->pattern = $pattern;
$this->format = $format;
}
/**
* @inheritdoc
*/
public function __get($property)
{
if (array_key_exists($property, $this->format))
{
return $this->format[$property];
}
return $this->accessor_get($property);
}
/**
* @return string
*/
public function __toString()
{
return $this->pattern;
}
/**
* Parse a number according to the pattern and return its integer and decimal parts.
*
* @param number $number
*
* @return array An array made with the integer and decimal parts of the number.
*/
public function parse_number($number)
{
$number = abs($number * $this->multiplier);
if ($this->max_decimal_digits >= 0)
{
$number = round($number, $this->max_decimal_digits);
}
$number = "$number";
if (($pos = strpos($number, '.')) !== false)
{
return [ substr($number, 0, $pos), substr($number, $pos + 1) ];
}
return [ $number, '' ];
}
/**
* Formats integer according to group pattern.
*
* @param int $integer
* @param string $group_symbol
*
* @return string
*/
public function format_integer_with_group($integer, $group_symbol)
{
$integer = str_pad($integer, $this->integer_digits, '0', STR_PAD_LEFT);
$group_size1 = $this->group_size1;
if ($group_size1 < 1 || strlen($integer) <= $this->group_size1)
{
return $integer;
}
$group_size2 = $this->group_size2;
$str1 = substr($integer, 0, -$group_size1);
$str2 = substr($integer, -$group_size1);
$size = $group_size2 > 0 ? $group_size2 : $group_size1;
$str1 = str_pad($str1, (int) ((strlen($str1) + $size - 1) / $size) * $size, ' ', STR_PAD_LEFT);
return ltrim(implode($group_symbol, str_split($str1, $size))) . $group_symbol . $str2;
}
/**
* Formats an integer with a decimal.
*
* @param string|int $integer An integer, or a formatted integer as returned by
* {@link format_integer_with_group}.
* @param string $decimal
* @param string $decimal_symbol
*
* @return string
*/
public function format_integer_with_decimal($integer, $decimal, $decimal_symbol)
{
$decimal = $decimal ? (string) $decimal : '';
if ($this->decimal_digits > strlen($decimal))
{
$decimal = str_pad($decimal, $this->decimal_digits, '0');
}
if (strlen($decimal))
{
$decimal = $decimal_symbol . $decimal;
}
return "$integer" . $decimal;
}
}