vbbs/app/Classes/Server/Ansi.php

<?php

namespace App\Classes\Server;

use Illuminate\Support\Facades\Log;

use App\Classes\Server as AbstractServer;
use App\Models\Mode;

class Ansi extends AbstractServer {
	public function __construct(Mode $o)
	{
		define('ESC',   chr(27));
		define('CON',   ESC.'[?25h');   // Cursor On
		define('COFF',  ESC.'[?25l');   // Cursor Off
		define('CSAVE', ESC.'[s');      // Save Cursor position
		define('CRESTORE',ESC.'[u');    // Restore to saved position
		define('HOME',  ESC.'[0;0f');
		define('LEFT',  ESC.'[D');      // Move Cursor
		define('RIGHT', ESC.'[C');      // Move Cursor
		define('DOWN',  ESC.'[B');      // Move Cursor
		define('UP',    ESC.'[A');      // Move Cursor
		define('CR',    chr(13));
		define('LF',    chr(10));
		define('CLS',   ESC.'[2J');
		define('HASH',  '#'); // Enter
		define('STAR',  '*'); // Star Entry
		define('SPACE', ' '); // Space

		// NOTE: This consts are effective output
		define('RED',       ESC.'[0;31m'.SPACE);
		define('GREEN',     ESC.'[0;32m'.SPACE);
		define('YELLOW',    ESC.'[1;33m'.SPACE);
		define('BLUE',      ESC.'[0;34m'.SPACE);
		define('MAGENTA',   ESC.'[0;35m'.SPACE);
		define('CYAN',      ESC.'[0;36m'.SPACE);
		define('WHITE',     ESC.'[1;37m'.SPACE);
		define('NEWBG',     '');

		// Raw attributes - used when storing frames.
		define('R_RED',     RED);
		define('R_GREEN',   GREEN);
		define('R_YELLOW',  YELLOW);
		define('R_BLUE',    BLUE);
		define('R_MAGENTA', MAGENTA);
		define('R_CYAN',    CYAN);
		define('R_WHITE',   WHITE);
		//define('FLASH',chr(8));

		parent::__construct($o);
	}

	function outputPosition($x,$y) {
		return ESC.'['.$y.';'.$x.'f';
	}

	// Abstract function
	public function sendBaseline($client,$text,$reposition=FALSE) {
		$client->send(CSAVE.ESC.'[24;0f'.$text.
			($this->blp > $this->strlenv($text)
				? str_repeat(' ',$this->blp-$this->strlenv($text)).
					($reposition ? ESC.'[24;0f'.str_repeat(RIGHT,$this->strlenv($text)) : CRESTORE)
				: ($reposition ? '' : CRESTORE))
		);

		$this->blp = $this->strlenv($text);
		$this->baseline = $text;
	}

	// Abstract function
	public function strlenv($text):int {
		return strlen($text ? preg_replace('/'.ESC.'\[[0-9;?]+[a-zA-Z]/','',$text) : $text);
	}

	// Abstract function
	public function testFrame()
	{
		return \App\Classes\Frame\Ansi::testFrame($this);
	}
}