PHP Clue\React\Term ControlCodeParser Examples

Example #1

File: Readline.php Project: clue/stdio-react

 public function __construct(ReadableStreamInterface $input, WritableStreamInterface $output)
 {
     $this->input = $input;
     $this->output = $output;
     if (!$this->input->isReadable()) {
         return $this->close();
     }
     // push input through control code parser
     $parser = new ControlCodeParser($input);
     $that = $this;
     $codes = array("\n" => 'onKeyEnter', "" => 'onKeyBackspace', "\t" => 'onKeyTab', "" => 'onKeyUp', "" => 'onKeyDown', "" => 'onKeyRight', "" => 'onKeyLeft', "[1~" => 'onKeyHome', "[2~" => 'onKeyInsert', "[3~" => 'onKeyDelete', "[4~" => 'onKeyEnd');
     $decode = function ($code) use($codes, $that) {
         if (isset($codes[$code])) {
             $method = $codes[$code];
             $that->{$method}($code);
             return;
         }
     };
     $parser->on('csi', $decode);
     $parser->on('c0', $decode);
     // push resulting data through utf8 sequencer
     $utf8 = new Utf8Sequencer($parser);
     $utf8->on('data', array($this, 'onFallback'));
     // process all stream events (forwarded from input stream)
     $utf8->on('end', array($this, 'handleEnd'));
     $utf8->on('error', array($this, 'handleError'));
     $utf8->on('close', array($this, 'close'));
 }

Example #2

File: FunctionalControlCodeParserTest.php Project: clue/term-react

 public function testPipingReadme()
 {
     $loop = Factory::create();
     $input = new Stream(fopen(__DIR__ . '/../README.md', 'r'), $loop);
     $parser = new ControlCodeParser($input);
     $buffer = '';
     $parser->on('data', function ($chunk) use(&$buffer) {
         $buffer .= $chunk;
     });
     $loop->run();
     $readme = str_replace("\n", '', file_get_contents(__DIR__ . '/../README.md'));
     $this->assertEquals($readme, $buffer);
 }

Example #3

File: random-colors.php Project: clue/term-react

//
// notice how if the input contains any colors to begin with, they will be replaced
// with random colors:
// $ phpunit --color=always | php random-colors.php
use React\Stream\Stream;
use React\EventLoop\Factory;
use Clue\React\Term\ControlCodeParser;
require __DIR__ . '/../vendor/autoload.php';
$loop = Factory::create();
if (function_exists('posix_isatty') && posix_isatty(STDIN)) {
    // Disable icanon (so we can fread each keypress) and echo (we'll do echoing here instead)
    shell_exec('stty -icanon -echo');
}
// process control codes from STDIN
$stdin = new Stream(STDIN, $loop);
$parser = new ControlCodeParser($stdin);
$stdout = new Stream(STDOUT, $loop);
$stdout->pause();
// pass all c0 codes through to output
$parser->on('c0', array($stdout, 'write'));
// replace any color codes (SGR) with a random color
$parser->on('csi', function ($code) use($stdout) {
    // we read any color code (SGR) on the input
    // assign a new random foreground and background color instead
    if (substr($code, -1) === 'm') {
        $code = "[" . mt_rand(30, 37) . ';' . mt_rand(40, 47) . "m";
    }
    $stdout->write($code);
});
// reset to default color at the end
$stdin->on('close', function () use($stdout) {

Example #4

File: stdin-codes.php Project: clue/term-react

//
// you can also pipe the output of other commands into this to see any control
// codes like this:
// $ phpunit --color=always | php stdin-codes.php
use React\Stream\Stream;
use React\EventLoop\Factory;
use Clue\React\Term\ControlCodeParser;
require __DIR__ . '/../vendor/autoload.php';
$loop = Factory::create();
if (function_exists('posix_isatty') && posix_isatty(STDIN)) {
    // Disable icanon (so we can fread each keypress) and echo (we'll do echoing here instead)
    shell_exec('stty -icanon -echo');
}
// process control codes from STDIN
$stdin = new Stream(STDIN, $loop);
$parser = new ControlCodeParser($stdin);
$decoder = function ($code) {
    echo 'Code:';
    for ($i = 0; isset($code[$i]); ++$i) {
        echo sprintf(" %02X", ord($code[$i]));
    }
    echo PHP_EOL;
};
$parser->on('csi', $decoder);
$parser->on('osc', $decoder);
$parser->on('c1', $decoder);
$parser->on('c0', $decoder);
$parser->on('data', function ($bytes) {
    echo 'Data: ' . $bytes . PHP_EOL;
});
$loop->run();

Example #5

File: remove-codes.php Project: clue/term-react

// this simple example reads from STDIN, removes ALL codes and then prints to STDOUT.
// you can run this example and notice that special keys will be filtered out:
// $ php remove-codes.php
//
// you can also pipe the output of other commands into this to remove any control
// codes like this:
// $ phpunit --color=always | php remove-codes.php
use React\Stream\Stream;
use React\EventLoop\Factory;
use Clue\React\Term\ControlCodeParser;
require __DIR__ . '/../vendor/autoload.php';
$loop = Factory::create();
if (function_exists('posix_isatty') && posix_isatty(STDIN)) {
    // Disable icanon (so we can fread each keypress) and echo (we'll do echoing here instead)
    shell_exec('stty -icanon -echo');
}
// process control codes from STDIN
$stdin = new Stream(STDIN, $loop);
$parser = new ControlCodeParser($stdin);
$stdout = new Stream(STDOUT, $loop);
$stdout->pause();
// pipe data from STDIN to STDOUT without any codes
$parser->pipe($stdout);
// only forward \r, \n and \t
$parser->on('c0', function ($code) use($stdout) {
    if ($code === "\n" || $code === "\r" || $code === "\t") {
        $stdout->write($code);
    }
});
$loop->run();