125 lines
4.3 KiB
PHP
125 lines
4.3 KiB
PHP
<?php
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namespace Misuzu;
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final class Zalgo {
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public const MODE_MINI = 1;
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public const MODE_NORMAL = 2;
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public const MODE_MAX = 3;
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public const DIR_UP = 0x01;
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public const DIR_MID = 0x02;
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public const DIR_DOWN = 0x04;
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private const CHARS_UP = [
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"\u{030d}", "\u{030e}", "\u{0304}", "\u{0305}", "\u{033f}",
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"\u{0311}", "\u{0306}", "\u{0310}", "\u{0352}", "\u{0357}",
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"\u{0351}", "\u{0307}", "\u{0308}", "\u{030a}", "\u{0342}",
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"\u{0344}", "\u{034a}", "\u{034b}", "\u{034c}", "\u{0303}",
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"\u{0302}", "\u{030c}", "\u{0350}", "\u{0300}", "\u{0301}",
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"\u{030b}", "\u{030f}", "\u{0312}", "\u{0313}", "\u{0314}",
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"\u{033d}", "\u{0309}", "\u{0363}", "\u{0364}", "\u{0365}",
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"\u{0366}", "\u{0367}", "\u{0368}", "\u{0369}", "\u{036a}",
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"\u{036b}", "\u{036c}", "\u{036d}", "\u{036e}", "\u{036f}",
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"\u{033e}", "\u{035b}", "\u{0346}", "\u{031a}",
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];
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private const CHARS_DOWN = [
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"\u{0316}", "\u{0317}", "\u{0318}", "\u{0319}", "\u{031c}",
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"\u{031d}", "\u{031e}", "\u{031f}", "\u{0320}", "\u{0324}",
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"\u{0325}", "\u{0326}", "\u{0329}", "\u{032a}", "\u{032b}",
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"\u{032c}", "\u{032d}", "\u{032e}", "\u{032f}", "\u{0330}",
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"\u{0331}", "\u{0332}", "\u{0333}", "\u{0339}", "\u{033a}",
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"\u{033b}", "\u{033c}", "\u{0345}", "\u{0347}", "\u{0348}",
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"\u{0349}", "\u{034d}", "\u{034e}", "\u{0353}", "\u{0354}",
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"\u{0355}", "\u{0356}", "\u{0359}", "\u{035a}", "\u{0323}",
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];
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private const CHARS_MIDDLE = [
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"\u{0315}", "\u{031b}", "\u{0340}", "\u{0341}", "\u{0358}",
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"\u{0321}", "\u{0322}", "\u{0327}", "\u{0328}", "\u{0334}",
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"\u{0335}", "\u{0336}", "\u{034f}", "\u{035c}", "\u{035d}",
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"\u{035e}", "\u{035f}", "\u{0360}", "\u{0362}", "\u{0338}",
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"\u{0337}", "\u{0361}", "\u{0489}",
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];
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public static function strip(string $text): string {
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$text = str_replace(self::CHARS_UP, '', $text);
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$text = str_replace(self::CHARS_DOWN, '', $text);
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$text = str_replace(self::CHARS_MIDDLE, '', $text);
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return $text;
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}
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public static function isZalgoChar(string $char): bool {
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return in_array($char, self::CHARS_UP)
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|| in_array($char, self::CHARS_DOWN)
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|| in_array($char, self::CHARS_MIDDLE);
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}
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public static function getString(array $array, int $length): string {
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$string = '';
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$rngMax = count($array) - 1;
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for($i = 0; $i < $length; $i++)
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$string .= $array[mt_rand(0, $rngMax)];
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return $string;
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}
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public static function run(
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string $text,
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int $mode = self::MODE_MINI,
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int $direction = self::DIR_MID | self::DIR_DOWN
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): string {
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$length = mb_strlen($text);
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if($length < 1 || $mode < 1 || $direction < 1) {
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return $text;
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}
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$going_up = ($direction & self::DIR_UP) > 0;
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$going_mid = ($direction & self::DIR_MID) > 0;
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$going_down = ($direction & self::DIR_DOWN) > 0;
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$str = '';
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for($i = 0; $i < $length; $i++) {
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$char = $text[$i];
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if(self::isZalgoChar($char))
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continue;
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$str .= $char;
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$num_up = $num_mid = $num_down = 0;
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switch($mode) {
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case self::MODE_MINI:
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$num_up = mt_rand(0, 8);
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$num_mid = mt_rand(0, 2);
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$num_down = mt_rand(0, 8);
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break;
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case self::MODE_NORMAL:
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$num_up = mt_rand(0, 16) / 2 + 1;
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$num_mid = mt_rand(0, 6) / 2;
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$num_down = mt_rand(0, 8) / 2 + 1;
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break;
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case self::MODE_MAX:
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$num_up = mt_rand(0, 64) / 4 + 3;
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$num_mid = mt_rand(0, 16) / 4 + 1;
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$num_down = mt_rand(0, 64) / 4 + 3;
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break;
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}
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if($going_up)
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$str .= self::getString(self::CHARS_UP, $num_up);
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if($going_mid)
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$str .= self::getString(self::CHARS_MIDDLE, $num_mid);
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if($going_down)
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$str .= self::getString(self::CHARS_DOWN, $num_down);
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}
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return $str;
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}
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}
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