Stream Class

stream.php

<?php

class Stream {

    private static $stdin_handle = false;
    private static $stdout_handle = false;

    static function in() {
        if (self::$stdin_handle === false && PHP_SAPI === 'cli') {
            self::$stdin_handle = fopen("php://stdin", "r");
        }

        if (self::$stdin_handle !== false) {
            return trim(fgets(STDIN));
        }
    }

    static function clear() {
    	system('clear');
    }

    static function out() {
    	$formatted_text = call_user_func_array('sprintf', func_get_args());
        if (self::$stdout_handle === false && PHP_SAPI === 'cli') {
            self::$stdout_handle = fopen("php://stdout", "r");
        }

        if (self::$stdout_handle !== false) {   
            return fputs(self::$stdout_handle, $formatted_text);
        }
    }

    static function prompt() {
        $formatted_text = call_user_func_array('sprintf', func_get_args());
        return self::prompt($text);
    }

    static function in_quiet() {

        $command = "/usr/bin/env bash -c 'echo OK'";
        if (rtrim(shell_exec($command)) !== 'OK') {
          trigger_error("Can't invoke bash");
          return;
        }
        $command = "/usr/bin/env bash -c 'read -s -p \""
          . "\" mypassword && echo \$mypassword'";
        $output = rtrim(shell_exec($command));
        
        self::out("\n");
        return $output;    
    }

    static function prompt_quiet() {
        $formatted_text = call_user_func_array('sprintf', func_get_args());
        return self::prompt_noecho($text);
    }

    static function get_tty_width() {
    	$output = exec('tput cols');
    	return $output;
	}

	static function beep($int_beeps = 1) {
	    for ($i = 0; $i < $int_beeps; $i++) {
	    	$string_beeps .= "\x07";
	    }
	    isset ($_SERVER['SERVER_PROTOCOL']) ? false : print $string_beeps;
	}

	static function strip_cli($text) {
		$out =  preg_replace('/\033\[[0-9;]+m/', '', $text);
		return $out;
	}

	static function text_fill($text, $fill = '=', $align = 'left') {

		$fill_width = strlen(self::strip_cli($fill));

		$full_width = self::get_tty_width();
		$ratio = ($fill_width / strlen($fill));
		$close_fill = ($ratio != 1)?"\033[0m":'';

		$text = ($align == 'left'?($text.' '):
				($align == 'right'?(' '.$text):(' '.$text.' ')));

		$remainder_width = $full_width - strlen(self::strip_cli($text));

		switch ($align) {
			case 'left':
				$left_width = 0;
				break;
			case 'right':
				$left_width = $remainder_width;
				break;
			case 'center':
			default:
				$left_width = ceil($remainder_width / 2);
				break;
		}

		$left_pad = str_repeat($fill, $left_width / $fill_width).$close_fill;
		$right_pad = str_repeat($fill, ($remainder_width - $left_width) / $fill_width);

		$str = $left_pad.$text.$right_pad.	$close_fill;

		return $str."\n";
	}
}