last = 0;
$this->tick();
}
public function tick() {
$cur = hrtime(true);
$dt = $cur - $this->last;
$this->last = $cur;
return $dt / 1000_000_000;
}
}
function appendf(&$s) {return function ($a) use (&$s) {$s .= $a;};}
function callf(&$f) {return function (...$a) use (&$f) {return $f(...$a);};}
class StyleMutator {
private $current;
private $dirty;
private $write;
public function __construct(Callable $write, ?StyleMutator $from = null) {
if (isset($from)) {
$this->current = &$from->current;
$this->dirty = &$from->dirty;
} else {
$this->current = [];
$this->dirty = [];
}
$this->write = $write;
}
public function set($i, $k, $v) {
$this->dirty[$k][$i] = $v;
if (isset($this->current[$k][$i]) && $this->current[$k][$i] == $v) {
unset($this->dirty[$k][$i]);
}
}
public function present() {
$str = "\n";
$byval = [];
foreach ($this->dirty as $k => $l) {
foreach ($l as $i => $v) {
$byval[$k . ":" . $v][] = $i;
}
}
foreach ($byval as $v => $l) {
$byval[$v] = sprintf("%s{%s}", implode(',', $l), $v);
}
($this->write)(sprintf($str, implode('', $byval)));
foreach ($this->dirty as $k => $l) {
foreach ($l as $i => $v) {
$this->current[$k][$i] = $v;
}
}
$this->dirty = [];
return true;
}
}
const SI_BIGGER = [
['k', 1000 ** 1],
['M', 1000 ** 2],
['G', 1000 ** 3],
['T', 1000 ** 4],
['P', 1000 ** 5],
['E', 1000 ** 6],
['Z', 1000 ** 7],
['Y', 1000 ** 8],
['R', 1000 ** 9],
['Q', 1000 ** 10],
];
const SI_SMALLER = [
['m', 1000 ** -1],
['μ', 1000 ** -2],
['n', 1000 ** -3],
['p', 1000 ** -4],
['a', 1000 ** -5],
['z', 1000 ** -6],
['y', 1000 ** -7],
['r', 1000 ** -8],
['q', 1000 ** -9],
];
function fnumfitweak($n, $m) {
$dd = max($m - strlen(sprintf("%.0f", $n)) - 1, 0);
$s = rtrim(sprintf("%.{$dd}f", $n), ".0");
return $s == '' ? '0' : $s;
}
function fnumfit($n, $m) {
$p = '';
$s = fnumfitweak($n, $m);
foreach (SI_SMALLER as [$vp, $vm]) {
if (!($n > 0 && $s == 0)) {
break;
}
$p = $vp;
$s = fnumfitweak($n / $vm, $m - 1);
}
if ($p != '') {
return [$s, $p];
}
foreach (SI_BIGGER as [$vp, $vm]) {
if (strlen($s . $p) <= $m) {
break;
}
$p = $vp;
$s = fnumfitweak($n / $vm, $m - 1);
}
return [$s, $p];
}
class CursedNumber {
private $stylist;
private $maxlen;
private $name;
private const DIGITS = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, '.' => 's'];
public function __construct( ? StyleMutator &$stylist = null, ?string $name = null, ? Callable $write = null, int $maxlen = 5) {
$this->stylist = &$stylist;
$this->maxlen = $maxlen;
if (isset($stylist)) {
if (!(isset($name) && isset($write))) {
throw new Exception("invalid argument");
}
$this->name = $name;
$str = "";
$state = "none";
for ($i = 0; $i < $maxlen; $i++) {
foreach (self::DIGITS as $v => $d) {
$en = $this->elname('d', $i, $d);
$str .= "$v";
$this->stylist->set('#' . $en, "display", $state);
}
}
foreach ([...SI_BIGGER, ...SI_SMALLER] as [$d, $v]) {
$en = $this->elname('p', $d);
$str .= "$d";
$this->stylist->set('#' . $en, "display", $state);
}
$str .= "";
$write($str);
}
}
private function elname($type, ...$l) {
$name = $this->name;
switch ($type) {
case "d" :
return "{$name}n{$l[0]}{$l[1]}";
case "p" :
return "{$name}p{$l[0]}";
}
}
public function draw($n) {
$n = fnumfit($n, $this->maxlen);
for ($i = 0; $i < $this->maxlen; $i++) {
foreach (self::DIGITS as $v => $d) {
$en = $this->elname('d', $i, $d);
$state = "none";
if (isset($n[0][$i]) && $n[0][$i] == $v) {
$state = "initial";
}
$this->stylist->set('#' . $en, "display", $state);
}
}
foreach ([...SI_BIGGER, ...SI_SMALLER] as [$d, $v]) {
$en = $this->elname('p', $d);
$state = "none";
if ($n[1] == $d) {
$state = "initial";
}
$this->stylist->set('#' . $en, "display", $state);
}
}
}