Requests_IDNAEncoder::adapt( int $delta, int $numpoints, bool $firsttime )

Adapt the bias

Description

See also

Parameters

$delta

(int) (Required)

$numpoints

(int) (Required)

$firsttime

(bool) (Required)

Return

(int) New bias function adapt(delta,numpoints,firsttime):

Source

File: wp-includes/Requests/IDNAEncoder.php

protected static function adapt($delta, $numpoints, $firsttime) {
		// if firsttime then let delta = delta div damp
		if ($firsttime) {
			$delta = floor($delta / self::BOOTSTRAP_DAMP);
		}
		// else let delta = delta div 2
		else {
			$delta = floor($delta / 2);
		}
		// let delta = delta + (delta div numpoints)
		$delta += floor($delta / $numpoints);
		// let k = 0
		$k = 0;
		// while delta > ((base - tmin) * tmax) div 2 do begin
		$max = floor(((self::BOOTSTRAP_BASE - self::BOOTSTRAP_TMIN) * self::BOOTSTRAP_TMAX) / 2);
		while ($delta > $max) {
			// let delta = delta div (base - tmin)
			$delta = floor($delta / (self::BOOTSTRAP_BASE - self::BOOTSTRAP_TMIN));
			// let k = k + base
			$k += self::BOOTSTRAP_BASE;
		} // end
		// return k + (((base - tmin + 1) * delta) div (delta + skew))
		return $k + floor(((self::BOOTSTRAP_BASE - self::BOOTSTRAP_TMIN + 1) * $delta) / ($delta + self::BOOTSTRAP_SKEW));
	}

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/classes/requests_idnaencoder/adapt