Up to step 21

This commit is contained in:
Timothy Warren 2019-10-11 16:32:47 -04:00
parent 10369accac
commit e0a9d066ca
3 changed files with 38 additions and 25 deletions

29
kilo
View File

@ -5,41 +5,20 @@ namespace Kilo;
require_once __DIR__ . '/src/constants.php'; require_once __DIR__ . '/src/constants.php';
require_once __DIR__ . '/src/functions.php'; require_once __DIR__ . '/src/functions.php';
require_once __DIR__ . '/src/editor.php';
function main(): int function main(): int
{ {
global $ffi;
enableRawMode(); enableRawMode();
$editor = new Editor();
// Input Loop // Input Loop
while (true) while (true)
{ {
$char = read_stdin(1); $editor->processKeypress();
$c = ord($char);
if (empty($char))
{
continue;
} }
if ($ffi->iscntrl($c))
{
printf("%d\r\n", $c);
}
else
{
printf("%d ('%c')\r\n", $c, $c);
}
if ($char === 'q')
{
break;
}
}
disableRawMode();
return 0; return 0;
} }

27
src/editor.php Normal file
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@ -0,0 +1,27 @@
<?php declare(strict_types=1);
namespace Kilo;
class Editor {
public function __construct()
{
}
public function processKeypress(): void
{
$c = $this->readKey();
switch($c)
{
case chr(ctrl_key('q')):
exit(0);
break;
}
}
protected function readKey(): string
{
return read_stdin(1);
}
}

View File

@ -12,6 +12,8 @@ function enableRawMode(): void
global $ffi; global $ffi;
global $original_termios; global $original_termios;
register_shutdown_function('Kilo\\disableRawMode');
// Populate the original terminal settings // Populate the original terminal settings
$ffi->tcgetattr(STDIN_FILENO, FFI::addr($original_termios)); $ffi->tcgetattr(STDIN_FILENO, FFI::addr($original_termios));
@ -45,3 +47,8 @@ function read_stdin(int $len = 128): string
return $input; return $input;
} }
function ctrl_key(string $char): int
{
return ord($char) & 0x1f;
}