65 lines
1.6 KiB
PHP
65 lines
1.6 KiB
PHP
<?php
|
|
|
|
namespace PhpParser\Node\Scalar;
|
|
|
|
use PhpParser\Node\Scalar;
|
|
|
|
class DNumber extends Scalar
|
|
{
|
|
/** @var float Number value */
|
|
public $value;
|
|
|
|
/**
|
|
* Constructs a float number scalar node.
|
|
*
|
|
* @param float $value Value of the number
|
|
* @param array $attributes Additional attributes
|
|
*/
|
|
public function __construct($value, array $attributes = array()) {
|
|
parent::__construct($attributes);
|
|
$this->value = $value;
|
|
}
|
|
|
|
public function getSubNodeNames() {
|
|
return array('value');
|
|
}
|
|
|
|
/**
|
|
* @internal
|
|
*
|
|
* Parses a DNUMBER token like PHP would.
|
|
*
|
|
* @param string $str A string number
|
|
*
|
|
* @return float The parsed number
|
|
*/
|
|
public static function parse($str) {
|
|
// if string contains any of .eE just cast it to float
|
|
if (false !== strpbrk($str, '.eE')) {
|
|
return (float) $str;
|
|
}
|
|
|
|
// otherwise it's an integer notation that overflowed into a float
|
|
// if it starts with 0 it's one of the special integer notations
|
|
if ('0' === $str[0]) {
|
|
// hex
|
|
if ('x' === $str[1] || 'X' === $str[1]) {
|
|
return hexdec($str);
|
|
}
|
|
|
|
// bin
|
|
if ('b' === $str[1] || 'B' === $str[1]) {
|
|
return bindec($str);
|
|
}
|
|
|
|
// oct
|
|
// substr($str, 0, strcspn($str, '89')) cuts the string at the first invalid digit (8 or 9)
|
|
// so that only the digits before that are used
|
|
return octdec(substr($str, 0, strcspn($str, '89')));
|
|
}
|
|
|
|
// dec
|
|
return (float) $str;
|
|
}
|
|
}
|