Remove redundant docblock tags

Dockerfile

@@ -1,4 +1,4 @@
-FROM php:8-alpine3.13
+FROM php:8.1-alpine
 
 RUN apk add --no-cache --virtual .persistent-deps libffi-dev \
     && docker-php-ext-configure ffi --with-ffi \

Jenkinsfile

@@ -5,9 +5,9 @@ pipeline {
  		}
  	}
  	stages {
- 		stage('PHP 7.4') {
+ 		stage('PHP 8.1') {
  			steps {
- 				sh 'apk add --no-cache -X http://dl-cdn.alpinelinux.org/alpine/edge/testing php8-phpdbg'
+ 				sh 'apk add --no-cache -X http://dl-cdn.alpinelinux.org/alpine/edge/testing php-phpdbg'
  				sh 'curl -sS https://getcomposer.org/installer | php'
  				sh 'php composer.phar install'
  				sh 'phpdbg -dffi.enable=1 -qrr -- ./vendor/bin/phpunit --coverage-text --coverage-clover clover.xml --colors=never -c phpunit.xml tests'

README.md

@@ -5,7 +5,7 @@
 A reimplementation of the [Kilo](https://viewsourcecode.org/snaptoken/kilo/index.html) tutorial in PHP. Also has some inspiration from the [Hecto](https://www.philippflenker.com/hecto/) text editor tutorial.  Requires PHP 8 and FFI.
 
 ## Requirements
-* PHP 8
+* PHP 8.1
 * FFI enabled
 
 ## Implementation notes:

composer.json

@@ -1,8 +1,7 @@
 {
 	"autoload": {
 		"files": [
-			"src/constants.php",
-			"src/functions.php"
+			"src/Kilo.php"
 		],
 		"psr-4": {
 			"Aviat\\Kilo\\": "src/"
@@ -16,8 +15,8 @@
     "require-dev": {
 		"ext-json": "*",
 		"phpunit/phpunit": "^9.5.0",
-		"phpstan/phpstan": "^0.12.19",
-		"spatie/phpunit-snapshot-assertions": "^4.2.0"
+		"phpstan/phpstan": "^1.8.2",
+		"spatie/phpunit-snapshot-assertions": "^4.2.15"
     },
 	"scripts": {
 		"coverage": "phpdbg -qrr -- vendor/bin/phpunit -c phpunit.xml tests",
@@ -27,6 +26,6 @@
 	},
 	"require": {
 		"ext-ffi": "*",
-	  	"php": ">= 8.0.0"
+	  	"php": ">= 8.1.0"
 	}
 }

kilo

@@ -3,14 +3,34 @@
 
 namespace Aviat\Kilo;
 
-require_once __DIR__ . '/vendor/autoload.php';
+use Aviat\Kilo\Terminal\Termios;
+
+require_once __DIR__ . '/src/Kilo.php';
+
+// Remove the composer install requirement by
+// manually handling autoloading
+spl_autoload_register(static function (string $class): void {
+	$nsParts = explode('\\', $class);
+	array_shift($nsParts);
+	array_shift($nsParts);
+
+	array_unshift($nsParts, __DIR__, 'src');
+	$file = implode(DIRECTORY_SEPARATOR, $nsParts) . '.php';
+
+	if (file_exists($file))
+	{
+		require_once($file);
+		return;
+	}
+});
+
 
 // Log notices/errors/warnings to file
 set_error_handler(static function (
-	$errno,
-	$errstr,
-	$errfile,
-	$errline
+	int $errno,
+	string $errstr,
+	string $errfile,
+	int $errline,
 ) {
 	$msg = print_r([
 		'code' => error_code_name($errno),

src/Document.php

@@ -78,6 +78,12 @@ class Document {
 		$this->dirty = false;
 		$this->selectSyntaxHighlight();
 
+		// Add a row to empty files so it can be properly edited
+		if ($this->isEmpty())
+		{
+			$this->rows[] = Row::new($this, "", 0);
+		}
+
 		return $this;
 	}
 
@@ -95,14 +101,14 @@ class Document {
 		return $res;
 	}
 
-	public function insert(Point $at, string $c): void
+	public function insert(Point $at, string|KeyType $c): void
 	{
 		if ($at->y > $this->numRows)
 		{
 			return;
 		}
 
-		if ($c === KeyType::ENTER || $c === RawKeyCode::CARRIAGE_RETURN)
+		if ($c === KeyType::Enter || $c === RawKeyCode::CARRIAGE_RETURN)
 		{
 			$this->insertNewline($at);
 			$this->dirty = true;
@@ -113,7 +119,7 @@ class Document {
 		$this->dirty = true;
 	}
 
-	public function delete(Point $at): void
+	public function delete(Point $at, int $gutter = 0): void
 	{
 		if ($at->y > $this->numRows)
 		{
@@ -122,7 +128,7 @@ class Document {
 
 		$row =& $this->rows[$at->y];
 
-		if ($at->x === $this->rows[$at->y]->size && $at->y + 1 < $this->numRows)
+		if (($at->x - $gutter) === $this->rows[$at->y]->size && $at->y + 1 < $this->numRows)
 		{
 			$this->rows[$at->y]->append($this->rows[$at->y + 1]->chars);
 			$this->deleteRow($at->y + 1);

src/Editor.php

@@ -2,20 +2,25 @@
 
 namespace Aviat\Kilo;
 
-use Aviat\Kilo\Type\TerminalSize;
-use Aviat\Kilo\Enum\{
-	Color,
-	RawKeyCode,
-	KeyType,
-	Highlight,
-	SearchDirection
-};
+use Aviat\Kilo\Enum\{Highlight, KeyType, RawKeyCode, SearchDirection};
+use Aviat\Kilo\Terminal\ANSI;
+use Aviat\Kilo\Terminal\Enum\Color;
+use Aviat\Kilo\Terminal\Terminal;
 use Aviat\Kilo\Type\{Point, StatusMessage};
+use Aviat\Kilo\Type\TerminalSize;
 
 /**
  * // Don't highlight this!
  */
 class Editor {
+	/**
+	 * @var bool Whether to render line numbers
+	 */
+	public bool $showLineNumbers = true;
+	/**
+	 * @var int The size of the line number Gutter in characters
+	 */
+	public int $numberGutter = 5;
 	/**
 	 * @var string The screen buffer
 	 */
@@ -63,10 +68,6 @@ class Editor {
 
 	/**
 	 * Create the Editor instance with CLI arguments
-	 *
-	 * @param int $argc
-	 * @param array $argv
-	 * @return Editor
 	 */
 	public static function new(int $argc = 0, array $argv = []): Editor
 	{
@@ -80,8 +81,6 @@ class Editor {
 
 	/**
 	 * The real constructor, ladies and gentlemen
-	 *
-	 * @param string|null $filename
 	 */
 	private function __construct(?string $filename = NULL)
 	{
@@ -126,17 +125,20 @@ class Editor {
 	 */
 	public function run(): void
 	{
+		$this->refreshScreen();
+
 		while ( ! $this->shouldQuit)
 		{
-			$this->refreshScreen();
-			$this->processKeypress();
+			// Don't redraw unless the screen actually needs to update!
+			if ($this->processKeypress() !== false)
+			{
+				$this->refreshScreen();
+			}
 		}
 	}
 
 	/**
 	 * Set a status message to be displayed, using printf formatting
-	 * @param string $fmt
-	 * @param mixed ...$args
 	 */
 	public function setStatusMessage(string $fmt, mixed ...$args): void
 	{
@@ -153,10 +155,6 @@ class Editor {
 
 	/**
 	 * Cursor X to Render X
-	 *
-	 * @param Row $row
-	 * @param int $cx
-	 * @return int
 	 */
 	protected function rowCxToRx(Row $row, int $cx): int
 	{
@@ -175,10 +173,6 @@ class Editor {
 
 	/**
 	 * Render X to Cursor X
-	 *
-	 * @param Row $row
-	 * @param int $rx
-	 * @return int
 	 */
 	protected function rowRxToCx(Row $row, int $rx): int
 	{
@@ -233,7 +227,7 @@ class Editor {
 	// ! Find
 	// ------------------------------------------------------------------------
 
-	protected function findCallback(string $query, string $key): void
+	protected function findCallback(string $query, string|KeyType $key): void
 	{
 		static $lastMatch = NO_MATCH;
 		static $direction = SearchDirection::FORWARD;
@@ -254,11 +248,11 @@ class Editor {
 		}
 
 		$direction = match ($key) {
-			KeyType::ARROW_UP, KeyType::ARROW_LEFT => SearchDirection::BACKWARD,
+			KeyType::ArrowUp, KeyType::ArrowLeft => SearchDirection::BACKWARD,
 			default => SearchDirection::FORWARD
 		};
 
-		$arrowKeys = [KeyType::ARROW_UP, KeyType::ARROW_DOWN, KeyType::ARROW_LEFT, KeyType::ARROW_RIGHT];
+		$arrowKeys = [KeyType::ArrowUp, KeyType::ArrowDown, KeyType::ArrowLeft, KeyType::ArrowRight];
 
 		// Reset search state with non arrow-key input
 		if ( ! in_array($key, $arrowKeys, true))
@@ -286,7 +280,7 @@ class Editor {
 
 		for ($i = 0; $i < $this->document->numRows; $i++)
 		{
-			$current += $direction;
+			$current += $direction->value;
 			if ($current === -1)
 			{
 				$current = $this->document->numRows - 1;
@@ -313,7 +307,7 @@ class Editor {
 				$savedHlLine = $current;
 				$savedHl = $row->hl;
 				// Update the highlight array of the relevant row with the 'MATCH' type
-				array_replace_range($row->hl, $match, strlen($query), Highlight::MATCH);
+				array_replace_range($row->hl, $match, strlen($query), Highlight::SearchMatch);
 
 				break;
 			}
@@ -409,6 +403,11 @@ class Editor {
 			$len = $this->terminalSize->cols;
 		}
 
+		if ($this->showLineNumbers)
+		{
+			$this->outputBuffer .= sprintf("%-{$this->numberGutter}s", ($rowIdx+1));
+		}
+
 		$chars = substr($row->render, $this->offset->x, (int)$len);
 		$hl = array_slice($row->hl, $this->offset->x, (int)$len);
 
@@ -424,15 +423,13 @@ class Editor {
 				$sym = (ord($ch) <= 26)
 					? chr(ord('@') + ord($ch))
 					: '?';
-				$this->outputBuffer .= ANSI::color(Color::INVERT);
-				$this->outputBuffer .= $sym;
-				$this->outputBuffer .= ANSI::RESET_TEXT;
+				$this->outputBuffer .= ANSI::invert($sym);
 				if ($currentColor !== -1)
 				{
 					$this->outputBuffer .= ANSI::color($currentColor);
 				}
 			}
-			else if ($hl[$i] === Highlight::NORMAL)
+			else if ($hl[$i] === Highlight::Normal)
 			{
 				if ($currentColor !== -1)
 				{
@@ -444,7 +441,7 @@ class Editor {
 			}
 			else
 			{
-				$color = syntax_to_color($hl[$i]);
+				$color = get_syntax_color($hl[$i]);
 				if ($color !== $currentColor)
 				{
 					$currentColor = $color;
@@ -470,17 +467,14 @@ class Editor {
 				$welcomelen = $this->terminalSize->cols;
 			}
 
-			$padding = ($this->terminalSize->cols - $welcomelen) / 2;
+			$padding = (int)floor(($this->terminalSize->cols - $welcomelen) / 2);
 			if ($padding > 0)
 			{
 				$this->outputBuffer .= '~';
 				$padding--;
 			}
-			for ($i = 0; $i < $padding; $i++)
-			{
-				$this->outputBuffer .= ' ';
-			}
 
+			$this->outputBuffer .= str_repeat(' ', $padding);
 			$this->outputBuffer .= substr($welcome, 0, $welcomelen);
 		}
 		else
@@ -491,7 +485,7 @@ class Editor {
 
 	protected function drawStatusBar(): void
 	{
-		$this->outputBuffer .= ANSI::color(Color::INVERT);
+		$this->outputBuffer .= ANSI::INVERSE_TEXT;
 
 		$statusFilename = $this->document->filename !== '' ? $this->document->filename : '[No Name]';
 		$syntaxType = $this->document->fileType->name;
@@ -547,10 +541,12 @@ class Editor {
 		$this->drawStatusBar();
 		$this->drawMessageBar();
 
+		$gutter = ($this->showLineNumbers) ? $this->numberGutter : 0;
+
 		// Specify the current cursor position
 		$this->outputBuffer .= ANSI::moveCursor(
 			$this->cursor->y - $this->offset->y,
-			$this->renderX - $this->offset->x
+			($this->renderX - $this->offset->x) + $gutter,
 		);
 
 		$this->outputBuffer .= ANSI::SHOW_CURSOR;
@@ -574,21 +570,21 @@ class Editor {
 			$c = Terminal::readKey();
 			$isModifier = in_array($c, $modifiers, TRUE);
 
-			if ($c === KeyType::ESCAPE || ($c === RawKeyCode::ENTER && $buffer !== ''))
+			if ($c === KeyType::Escape || ($c === KeyType::Enter && $buffer !== ''))
 			{
 				$this->setStatusMessage('');
 				if ($callback !== NULL)
 				{
 					$callback($buffer, $c);
 				}
-				return ($c === RawKeyCode::ENTER) ? $buffer : '';
+				return ($c === KeyType::Enter) ? $buffer : '';
 			}
 
-			if ($c === KeyType::DELETE || $c === KeyType::BACKSPACE)
+			if ($c === KeyType::Delete || $c === KeyType::Backspace)
 			{
 				$buffer = substr($buffer, 0, -1);
 			}
-			else if (is_ascii($c) && ( ! (is_ctrl($c) || $isModifier)))
+			else if (is_string($c) && is_ascii($c) && ( ! (is_ctrl($c) || $isModifier)))
 			{
 				$buffer .= $c;
 			}
@@ -602,21 +598,23 @@ class Editor {
 
 	/**
 	 * Input processing
+	 *
+	 * Returns `false` on no keypress
 	 */
-	protected function processKeypress(): void
+	protected function processKeypress(): bool|null
 	{
 		$c = Terminal::readKey();
 
 		if ($c === RawKeyCode::NULL || $c === RawKeyCode::EMPTY)
 		{
-			return;
+			return false;
 		}
 
 		switch ($c)
 		{
 			case RawKeyCode::CTRL('q'):
 				$this->quitAttempt();
-				return;
+				return true;
 
 			case RawKeyCode::CTRL('s'):
 				$this->save();
@@ -626,24 +624,24 @@ class Editor {
 				$this->find();
 			break;
 
-			case KeyType::DELETE:
-			case KeyType::BACKSPACE:
+			case KeyType::Delete:
+			case KeyType::Backspace:
 				$this->removeChar($c);
 			break;
 
-			case KeyType::ARROW_UP:
-			case KeyType::ARROW_DOWN:
-			case KeyType::ARROW_LEFT:
-			case KeyType::ARROW_RIGHT:
-			case KeyType::PAGE_UP:
-			case KeyType::PAGE_DOWN:
-			case KeyType::HOME:
-			case KeyType::END:
+			case KeyType::ArrowUp:
+			case KeyType::ArrowDown:
+			case KeyType::ArrowLeft:
+			case KeyType::ArrowRight:
+			case KeyType::PageUp:
+			case KeyType::PageDown:
+			case KeyType::Home:
+			case KeyType::End:
 				$this->moveCursor($c);
 			break;
 
 			case RawKeyCode::CTRL('l'):
-			case KeyType::ESCAPE:
+			case KeyType::Escape:
 				// Do nothing
 			break;
 
@@ -658,13 +656,15 @@ class Editor {
 			$this->quitTimes = KILO_QUIT_TIMES;
 			$this->setStatusMessage('');
 		}
+
+		return true;
 	}
 
 	// ------------------------------------------------------------------------
 	// ! Editor operation helpers
 	// ------------------------------------------------------------------------
 
-	protected function moveCursor(string $key): void
+	protected function moveCursor(KeyType $key): void
 	{
 		$x = $this->cursor->x;
 		$y = $this->cursor->y;
@@ -676,7 +676,7 @@ class Editor {
 
 		switch ($key)
 		{
-			case KeyType::ARROW_LEFT:
+			case KeyType::ArrowLeft:
 				if ($x !== 0)
 				{
 					$x--;
@@ -687,9 +687,9 @@ class Editor {
 					$y--;
 					$x = $row->size - 1;
 				}
-				break;
+			break;
 
-			case KeyType::ARROW_RIGHT:
+			case KeyType::ArrowRight:
 				if ($x < $row->size)
 				{
 					$x++;
@@ -699,40 +699,40 @@ class Editor {
 					$y++;
 					$x = 0;
 				}
-				break;
+			break;
 
-			case KeyType::ARROW_UP:
+			case KeyType::ArrowUp:
 				if ($y !== 0)
 				{
 					$y--;
 				}
-				break;
+			break;
 
-			case KeyType::ARROW_DOWN:
+			case KeyType::ArrowDown:
 				if ($y < $this->document->numRows)
 				{
 					$y++;
 				}
-				break;
+			break;
 
-			case KeyType::PAGE_UP:
+			case KeyType::PageUp:
 				$y = saturating_sub($y, $this->terminalSize->rows);
-				break;
+			break;
 
-			case KeyType::PAGE_DOWN:
+			case KeyType::PageDown:
 				$y = saturating_add($y, $this->terminalSize->rows, $this->document->numRows);
-				break;
+			break;
 
-			case KeyType::HOME:
+			case KeyType::Home:
 				$x = 0;
-				break;
+			break;
 
-			case KeyType::END:
+			case KeyType::End:
 				if ($y < $this->document->numRows)
 				{
 					$x = $row->size;
 				}
-				break;
+			break;
 
 			default:
 				// Do nothing
@@ -753,23 +753,23 @@ class Editor {
 		}
 	}
 
-	protected function insertChar(string $c): void
+	protected function insertChar(string|KeyType $c): void
 	{
 		$this->document->insert($this->cursor, $c);
-		$this->moveCursor(KeyType::ARROW_RIGHT);
+		$this->moveCursor(KeyType::ArrowRight);
 	}
 
-	protected function removeChar(string $ch): void
+	protected function removeChar(string|KeyType $ch): void
 	{
-		if ($ch === KeyType::DELETE)
+		if ($ch === KeyType::Delete)
 		{
-			$this->document->delete($this->cursor);
+			$this->document->delete($this->cursor, $this->numberGutter);
 		}
 
-		if ($ch === KeyType::BACKSPACE && ($this->cursor->x > 0 || $this->cursor->y > 0))
+		if ($ch === KeyType::Backspace && (($this->cursor->x >= $this->numberGutter) || $this->cursor->y > 0))
 		{
-			$this->moveCursor(KeyType::ARROW_LEFT);
-			$this->document->delete($this->cursor);
+			$this->moveCursor(KeyType::ArrowLeft);
+			$this->document->delete($this->cursor, $this->numberGutter);
 		}
 	}
 

src/Enum/C.php

@@ -1,150 +0,0 @@
-<?php declare(strict_types=1);
-
-namespace Aviat\Kilo\Enum;
-
-use Aviat\Kilo\Traits;
-
-/**
- * Just a namespace for C language constants
- */
-class C {
-	use Traits\ConstList;
-
-	// ------------------------------------------------------------------------
-	// ! Misc I/O constants
-	// ------------------------------------------------------------------------
-
-	public const STDIN_FILENO = 0;
-	public const STDOUT_FILENO = 1;
-	public const STDERR_FILENO = 2;
-	public const TCSAFLUSH = 2;
-
-	// ------------------------------------------------------------------------
-	// ! Termios flags and constants
-	// ------------------------------------------------------------------------
-
-	/* Input modes */
-	public const IGNBRK = (1 << 0);    /* Ignore break condition.  */
-	public const BRKINT = (1 << 1);    /* Signal interrupt on break.  */
-	public const IGNPAR = (1 << 2);    /* Ignore characters with parity errors.  */
-	public const PARMRK = (1 << 3);    /* Mark parity and framing errors.  */
-	public const INPCK = (1 << 4);    /* Enable input parity check.  */
-	public const ISTRIP = (1 << 5);    /* Strip 8th bit off characters.  */
-	public const INLCR = (1 << 6);    /* Map NL to CR on input.  */
-	public const IGNCR = (1 << 7);    /* Ignore CR.  */
-	public const ICRNL = (1 << 8);    /* Map CR to NL on input.  */
-	public const IXON = (1 << 9);    /* Enable start/stop output control.  */
-	public const IXOFF = (1 << 10);    /* Enable start/stop input control.  */
-	public const IXANY = (1 << 11);    /* Any character will restart after stop.  */
-	public const IMAXBEL = (1 << 13);    /* Ring bell when input queue is full.  */
-	public const IUCLC = (1 << 14);    /* Translate upper case input to lower case. */
-
-	/* Output modes */
-	public const OPOST = (1 << 0);    /* Perform output processing.  */
-	public const ONLCR = (1 << 1);    /* Map NL to CR-NL on output.  */
-	public const OXTABS = (1 << 2);        /* Expand tabs to spaces.  */
-	public const ONOEOT = (1 << 3);    /* Discard EOT (^D) on output.  */
-	public const OCRNL = (1 << 4);    /* Map CR to NL.  */
-	public const ONOCR = (1 << 5);    /* Discard CR's when on column 0.  */
-	public const ONLRET = (1 << 6);    /* Move to column 0 on NL.  */
-	public const NLDLY = (3 << 8);    /* NL delay.  */
-	public const NL0 = (0 << 8);    /* NL type 0.  */
-	public const NL1 = (1 << 8);    /* NL type 1.  */
-	public const TABDLY = (3 << 10 | 1 << 2);    /* TAB delay.  */
-	public const TAB0 = (0 << 10);    /* TAB delay type 0.  */
-	public const TAB1 = (1 << 10);    /* TAB delay type 1.  */
-	public const TAB2 = (2 << 10);    /* TAB delay type 2.  */
-	public const TAB3 = (1 << 2);    /* Expand tabs to spaces.  */
-	public const CRDLY = (3 << 12);    /* CR delay.  */
-	public const CR0 = (0 << 12);    /* CR delay type 0.  */
-	public const CR1 = (1 << 12);    /* CR delay type 1.  */
-	public const CR2 = (2 << 12);    /* CR delay type 2.  */
-	public const CR3 = (3 << 12);    /* CR delay type 3.  */
-	public const FFDLY = (1 << 14);    /* FF delay.  */
-	public const FF0 = (0 << 14);    /* FF delay type 0.  */
-	public const FF1 = (1 << 14);    /* FF delay type 1.  */
-	public const BSDLY = (1 << 15);    /* BS delay.  */
-	public const BS0 = (0 << 15);    /* BS delay type 0.  */
-	public const BS1 = (1 << 15);    /* BS delay type 1.  */
-	public const VTDLY = (1 << 16);    /* VT delay.  */
-	public const VT0 = (0 << 16);    /* VT delay type 0.  */
-	public const VT1 = (1 << 16);    /* VT delay type 1.  */
-	public const OLCUC = (1 << 17);    /* Translate lower case output to upper case */
-	public const OFILL = (1 << 18);    /* Send fill characters for delays.  */
-	public const OFDEL = (1 << 19);    /* Fill is DEL.  */
-
-	/* Control modes */
-	public const CIGNORE = (1 << 0);    /* Ignore these control flags.  */
-	public const CS5 = 0;        /* 5 bits per byte.  */
-	public const CS6 = (1 << 8);    /* 6 bits per byte.  */
-	public const CS7 = (1 << 9);    /* 7 bits per byte.  */
-	public const CS8 = (C::CS6|C::CS7);    /* 8 bits per byte.  */
-	public const CSIZE = (C::CS5|C::CS6|C::CS7|C::CS8);    /* Number of bits per byte (mask).  */
-	public const CSTOPB = (1 << 10);    /* Two stop bits instead of one.  */
-	public const CREAD = (1 << 11);    /* Enable receiver.  */
-	public const PARENB = (1 << 12);    /* Parity enable.  */
-	public const PARODD = (1 << 13);    /* Odd parity instead of even.  */
-	public const HUPCL = (1 << 14);    /* Hang up on last close.  */
-	public const CLOCAL = (1 << 15);    /* Ignore modem status lines.  */
-	public const CRTSCTS = (1 << 16);    /* RTS/CTS flow control.  */
-	public const CRTS_IFLOW = C::CRTSCTS;        /* Compatibility.  */
-	public const CCTS_OFLOW = C::CRTSCTS;        /* Compatibility.  */
-	public const CDTRCTS = (1 << 17);    /* DTR/CTS flow control.  */
-	public const MDMBUF = (1 << 20);    /* DTR/DCD flow control.  */
-	public const CHWFLOW = (C::MDMBUF|C::CRTSCTS|C::CDTRCTS); /* All types of flow control.  */
-
-	/* Local modes */
-	public const ECHOKE = (1 << 0);    /* Visual erase for KILL.  */
-	public const _ECHOE = (1 << 1);    /* Visual erase for ERASE.  */
-	public const ECHOE = C::_ECHOE;
-	public const _ECHOK = (1 << 2);    /* Echo NL after KILL.  */
-	public const ECHOK = C::_ECHOK;
-	public const _ECHO = (1 << 3);    /* Enable echo.  */
-	public const ECHO = C::_ECHO;
-	public const _ECHONL = (1 << 4);    /* Echo NL even if ECHO is off.  */
-	public const ECHONL = C::_ECHONL;
-	public const ECHOPRT = (1 << 5);    /* Hardcopy visual erase.  */
-	public const ECHOCTL = (1 << 6);    /* Echo control characters as ^X.  */
-	public const _ISIG = (1 << 7);    /* Enable signals.  */
-	public const ISIG = C::_ISIG;
-	public const _ICANON = (1 << 8);    /* Do erase and kill processing.  */
-	public const ICANON = C::_ICANON;
-	public const ALTWERASE = (1 << 9);    /* Alternate WERASE algorithm.  */
-	public const _IEXTEN = (1 << 10);    /* Enable DISCARD and LNEXT.  */
-	public const IEXTEN = C::_IEXTEN;
-	public const EXTPROC = (1 << 11);    /* External processing.  */
-	public const _TOSTOP = (1 << 22);    /* Send SIGTTOU for background output.  */
-	public const TOSTOP = C::_TOSTOP;
-	public const FLUSHO = (1 << 23);    /* Output being flushed (state).  */
-	public const XCASE = (1 << 24);    /* Canonical upper/lower case.  */
-	public const NOKERNINFO = (1 << 25);    /* Disable VSTATUS.  */
-	public const PENDIN = (1 << 29);    /* Retype pending input (state).  */
-	public const _NOFLSH = (1 << 31);    /* Disable flush after interrupt.  */
-	public const NOFLSH = C::_NOFLSH;
-
-	/* Control characters */
-	public const VEOF = 0;        /* End-of-file character [ICANON].  */
-	public const VEOL = 1;        /* End-of-line character [ICANON].  */
-	public const VEOL2 = 2;        /* Second EOL character [ICANON].  */
-	public const VERASE = 3;        /* Erase character [ICANON].  */
-	public const VWERASE = 4;        /* Word-erase character [ICANON].  */
-	public const VKILL = 5;        /* Kill-line character [ICANON].  */
-	public const VREPRINT = 6;        /* Reprint-line character [ICANON].  */
-	public const VINTR = 8;        /* Interrupt character [ISIG].  */
-	public const VQUIT = 9;        /* Quit character [ISIG].  */
-	public const VSUSP = 10;        /* Suspend character [ISIG].  */
-	public const VDSUSP = 11;        /* Delayed suspend character [ISIG].  */
-	public const VSTART = 12;        /* Start (X-ON) character [IXON, IXOFF].  */
-	public const VSTOP = 13;        /* Stop (X-OFF) character [IXON, IXOFF].  */
-	public const VLNEXT = 14;        /* Literal-next character [IEXTEN].  */
-	public const VDISCARD = 15;        /* Discard character [IEXTEN].  */
-	public const VMIN = 16;        /* Minimum number of bytes read at once [!ICANON].  */
-	public const VTIME = 17;        /* Time-out value (tenths of a second) [!ICANON].  */
-	public const VSTATUS = 18;        /* Status character [ICANON].  */
-	public const NCCS = 20;        /* Value duplicated in <hurd/tioctl.defs>.  */
-
-	// ------------------------------------------------------------------------
-	// ! IOCTL constants
-	// ------------------------------------------------------------------------
-	public const TIOCGWINSZ = 0x5413;
-}

src/Enum/Color.php

@@ -1,51 +0,0 @@
-<?php declare(strict_types=1);
-
-namespace Aviat\Kilo\Enum;
-
-use Aviat\Kilo\Traits;
-
-/**
- * ANSI Color escape sequences
- * @enum
- */
-class Color {
-	use Traits\ConstList;
-
-	// Foreground colors
-	public const FG_BLACK = 30;
-	public const FG_RED = 31;
-	public const FG_GREEN = 32;
-	public const FG_YELLOW = 33;
-	public const FG_BLUE = 34;
-	public const FG_MAGENTA = 35;
-	public const FG_CYAN = 36;
-	public const FG_WHITE = 37;
-	public const FG_BRIGHT_BLACK = 90;
-	public const FG_BRIGHT_RED = 91;
-	public const FG_BRIGHT_GREEN = 92;
-	public const FG_BRIGHT_YELLOW = 93;
-	public const FG_BRIGHT_BLUE = 94;
-	public const FG_BRIGHT_MAGENTA = 95;
-	public const FG_BRIGHT_CYAN = 96;
-	public const FG_BRIGHT_WHITE = 97;
-
-	// Background colors
-	public const BG_BLACK = 40;
-	public const BG_RED = 41;
-	public const BG_GREEN = 42;
-	public const BG_YELLOW = 43;
-	public const BG_BLUE = 44;
-	public const BG_MAGENTA = 45;
-	public const BG_CYAN = 46;
-	public const BG_WHITE = 47;
-	public const BG_BRIGHT_BLACK = 100;
-	public const BG_BRIGHT_RED = 101;
-	public const BG_BRIGHT_GREEN = 102;
-	public const BG_BRIGHT_YELLOW = 103;
-	public const BG_BRIGHT_BLUE = 104;
-	public const BG_BRIGHT_MAGENTA = 105;
-	public const BG_BRIGHT_CYAN = 106;
-	public const BG_BRIGHT_WHITE = 107;
-
-	public const INVERT = 7;
-}

src/Enum/Highlight.php

@@ -3,46 +3,49 @@
 namespace Aviat\Kilo\Enum;
 
 use Aviat\Kilo\Traits;
+use JsonSerializable;
 
 /**
  * @enum
  */
-class Highlight {
-	use Traits\ConstList;
+enum Highlight implements JsonSerializable {
+	use Traits\EnumTrait;
 
-	public const NORMAL = 0;
-	public const COMMENT = 1;
-	public const ML_COMMENT = 2;
-	public const KEYWORD1 = 3;
-	public const KEYWORD2 = 4;
-	public const STRING = 5;
-	public const NUMBER = 6;
-	public const OPERATOR = 7;
-	public const VARIABLE = 8;
-	public const DELIMITER = 9;
-	public const INVALID = 10;
-	public const MATCH = 11;
-	public const IDENTIFIER = 12;
-	public const CHARACTER = 13;
+	case Normal;
+	case Comment;
+	case MultiLineComment;
+	case Keyword1;
+	case Keyword2;
+	case String;
+	case Number;
+	case Operator;
+	case Variable;
+	case Delimiter;
+	case Invalid;
+	case SearchMatch;
+	case Identifier;
+	case Character;
+	case Embed;
 
 	/**
 	 * Map a PHP syntax token to its associated highlighting type
 	 *
 	 * @param int $token
-	 * @return int
+	 * @return Highlight
 	 */
-	public static function fromPHPToken(int $token): int
+	public static function fromPHPToken(int $token): self
 	{
 		return match($token) {
 			// Delimiters
 			T_ARRAY,
+			T_ATTRIBUTE,
 			T_CURLY_OPEN,
 			T_DOLLAR_OPEN_CURLY_BRACES,
 			T_OPEN_TAG,
 			T_OPEN_TAG_WITH_ECHO,
 			T_CLOSE_TAG,
 			T_START_HEREDOC,
-			T_END_HEREDOC => Highlight::DELIMITER,
+			T_END_HEREDOC => Highlight::Delimiter,
 
 			// Number literals and magic constants
 			T_CLASS_C,
@@ -55,16 +58,18 @@ class Highlight {
 			T_METHOD_C,
 			T_NS_C,
 			T_NUM_STRING,
-			T_TRAIT_C => Highlight::NUMBER,
+			T_TRAIT_C => Highlight::Number,
 
 			// String literals
-			T_CONSTANT_ENCAPSED_STRING, T_ENCAPSED_AND_WHITESPACE => Highlight::STRING,
+			T_CONSTANT_ENCAPSED_STRING, T_ENCAPSED_AND_WHITESPACE => Highlight::String,
 
 			// Simple variables
-			T_VARIABLE, T_STRING_VARNAME => Highlight::VARIABLE,
+			T_VARIABLE, T_STRING_VARNAME => Highlight::Variable,
 
 			// Operators
 			T_AS,
+			T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG,
+			T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG,
 			T_AND_EQUAL,
 			T_BOOLEAN_AND,
 			T_BOOLEAN_OR,
@@ -103,7 +108,7 @@ class Highlight {
 			T_SL_EQUAL,
 			T_SR,
 			T_SR_EQUAL,
-			T_XOR_EQUAL => Highlight::OPERATOR,
+			T_XOR_EQUAL => Highlight::Operator,
 
 			// Keywords1
 			T_ABSTRACT,
@@ -166,10 +171,10 @@ class Highlight {
 			T_VAR,
 			T_WHILE,
 			T_YIELD,
-			T_YIELD_FROM => Highlight::KEYWORD1,
+			T_YIELD_FROM => Highlight::Keyword1,
 
 			// Not string literals, but identifiers, keywords, etc.
-			T_STRING => Highlight::IDENTIFIER,
+			T_STRING => Highlight::Identifier,
 
 			// Types and casts
 			T_ARRAY_CAST,
@@ -179,12 +184,14 @@ class Highlight {
 			T_INT_CAST,
 			T_OBJECT_CAST,
 			T_STRING_CAST,
-			T_UNSET_CAST => Highlight::KEYWORD2,
+			T_UNSET_CAST => Highlight::Keyword2,
 
-			// Invalid syntax
-			T_BAD_CHARACTER => Highlight::INVALID,
+			// Comments
+			T_DOC_COMMENT => Highlight::MultiLineComment,
 
-			default => Highlight::NORMAL,
+			T_INLINE_HTML => Highlight::Embed,
+
+			default => Highlight::Normal,
 		};
 	}
 
@@ -193,19 +200,19 @@ class Highlight {
 	 * highlighting type
 	 *
 	 * @param string $char
-	 * @return int
+	 * @return Highlight
 	 */
-	public static function fromPHPChar(string $char): int
+	public static function fromPHPChar(string $char): self
 	{
 		return match ($char) {
 			// Delimiter characters
-			'[', ']', '{', '}', '(', ')', '"', "'" => Highlight::DELIMITER,
+			'[', ']', '{', '}', '(', ')', '"', "'" => Highlight::Delimiter,
 
 			// Single character operators
 			'?', ',', ';', ':', '^', '%', '+', '-',
-			'*', '/', '.', '|', '~', '>', '<', '=', '!' => Highlight::OPERATOR,
+			'*', '/', '.', '|', '~', '>', '<', '=', '!' => Highlight::Operator,
 
-			default => Highlight::NORMAL,
+			default => Highlight::Normal,
 		};
 	}
 }

src/Enum/KeyType.php

@@ -3,24 +3,34 @@
 namespace Aviat\Kilo\Enum;
 
 use Aviat\Kilo\Traits;
+use JsonSerializable;
 
 /**
- * Constants representing various control keys
- * @enum
+ * Enum representing various control keys
  */
-class KeyType {
+enum KeyType implements JsonSerializable {
+	use Traits\EnumTrait;
 	use Traits\ConstList;
 
-	public const ARROW_DOWN = 'KEY_ARROW_DOWN';
-	public const ARROW_LEFT = 'KEY_ARROW_LEFT';
-	public const ARROW_RIGHT = 'KEY_ARROW_RIGHT';
-	public const ARROW_UP = 'KEY_ARROW_UP';
-	public const BACKSPACE = 'KEY_BACKSPACE';
-	public const DELETE = 'KEY_DELETE';
-	public const END = 'KEY_END';
-	public const ENTER = 'KEY_ENTER';
-	public const ESCAPE = 'KEY_ESCAPE';
-	public const HOME = 'KEY_HOME';
-	public const PAGE_DOWN = 'KEY_PAGE_DOWN';
-	public const PAGE_UP = 'KEY_PAGE_UP';
+	// ------------------------------------------------------------------------
+	// Movement Keys
+	// ------------------------------------------------------------------------
+	case ArrowUp;
+	case ArrowDown;
+	case ArrowLeft;
+	case ArrowRight;
+	case Home;
+	case End;
+	case PageUp;
+	case PageDown;
+	// ------------------------------------------------------------------------
+	// Editing Keys
+	// ------------------------------------------------------------------------
+	case Backspace;
+	case Delete;
+	case Enter;
+	// ------------------------------------------------------------------------
+	// Others
+	// ------------------------------------------------------------------------
+	case Escape;
 }

src/Enum/SearchDirection.php

@@ -7,9 +7,9 @@ use Aviat\Kilo\Traits;
 /**
  * @enum
  */
-class SearchDirection {
+enum SearchDirection: int {
 	use Traits\ConstList;
 
-	public const FORWARD = 1;
-	public const BACKWARD = -1;
+	case FORWARD = 1;
+	case BACKWARD = -1;
 }

src/Enum/SyntaxFamily.php

@@ -0,0 +1,13 @@
+<?php declare(strict_types=1);
+
+namespace Aviat\Kilo\Enum;
+
+use Aviat\Kilo\Traits;
+use JsonSerializable;
+
+enum SyntaxFamily implements JsonSerializable {
+	use Traits\EnumTrait;
+
+	case C;
+	case XML;
+}

src/FileType.php

@@ -2,12 +2,11 @@
 
 namespace Aviat\Kilo;
 
+use Aviat\Kilo\Enum\SyntaxFamily;
+
 class FileType {
 	/**
 	 * Create the FileType object from the filename
-	 *
-	 * @param string|null $filename
-	 * @return self
 	 */
 	public static function from(?string $filename): self
 	{
@@ -18,9 +17,6 @@ class FileType {
 
 	/**
 	 * Create the Syntax object from the filename
-	 *
-	 * @param string $filename
-	 * @return Syntax
 	 */
 	private static function getSyntaxFromFilename(string $filename): Syntax
 	{
@@ -125,6 +121,86 @@ class FileType {
 				hasCharType: true,
 				highlightCharacters: true,
 			),
+			'.html', '.htm', '.shtml' => Syntax::new(
+				'Html',
+				[
+					'!doctype', '!DOCTYPE', 'html', 'base', 'head', 'link', 'meta', 'style', 'title', 'body', 'address', 'article',
+					'aside', 'footer', 'header', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'main', 'nav', 'section',
+					'blockquote', 'dd', 'div', 'dl', 'dt', 'figcaption', 'figure', 'hr', 'li', 'ol', 'p', 'pre',
+					'ul', 'a', 'abbr', 'b', 'bdi', 'bdo', 'br', 'cite', 'code', 'data', 'dfn', 'em', 'i', 'kbd',
+					'mark', 'q', 'rp', 'rt', 'ruby', 's', 'samp', 'small', 'span', 'strong', 'sub', 'sup', 'time',
+					'u', 'var', 'wbr', 'area', 'audio', 'img', 'map', 'track', 'video', 'embed', 'iframe', 'object',
+					'param', 'picture', 'portal', 'source', 'svg', 'math', 'canvas', 'noscript', 'script', 'del',
+					'ins', 'caption', 'col', 'colgroup', 'table', 'td', 'tbody', 'tfoot', 'th', 'thead', 'tr',
+					'button', 'datalist', 'fieldset', 'form', 'input', 'label', 'legend', 'meter', 'optgroup',
+					'option', 'output', 'progress', 'select', 'textarea', 'details', 'dialog', 'menu', 'summary',
+					'slot', 'template', 'frameset', 'frame', 'noframes', 'marquee', 'font', 'center',
+				],
+				[
+					'id', 'class', 'for', 'style', 'charset'
+				],
+				operators: ['</', '<', '=', '>'],
+				slcs: '',
+				mcs: '<!--',
+				mce: '-->',
+				highlightNumbers: false,
+				hasCommonOperators: false,
+				syntaxFamily: SyntaxFamily::XML,
+			),
+			'.xml' => Syntax::new(
+				'XML',
+				[
+					'!doctype', '!element', '<?xml', '?>',
+				],
+				operators: ['<', '=', '>'],
+				slcs: '',
+				mcs: '<!--',
+				mce: '-->',
+				highlightNumbers: false,
+				hasCommonOperators: false,
+				syntaxFamily: SyntaxFamily::XML,
+			),
+			'.zig' => Syntax::new(
+				'Zig',
+				[
+					'auto', 'break', 'case', 'const', 'continue', 'default', 'do',  'typedef', 'switch', 'return',
+					'static', 'while', 'break', 'struct', 'extern', 'union', 'class', 'else', 'enum', 'for', 'case',
+					'if', 'inline', 'register', 'restrict', 'return', 'sizeof', 'switch', 'typedef', 'union', 'volatile',
+					'pub', 'fn', 'orelse', 'catch', 'and', 'or', 'comptime', 'test', 'var', 'opaque',
+					'usingnamespace', 'errdefer', 'callconv', 'unreachable', 'defer', 'inline',
+					'@addrSpaceCast', '@addWithOverflow', '@alignCast', '@alignOf', '@as', '@atomicLoad', '@atomicRmw',
+					'@atomicStore', '@bitCast', '@bitOffsetOf', '@bitSizeOf', '@breakpoint', '@mulAdd', '@byteSwap',
+					'@bitReverse', '@offsetOf', '@call', '@cDefine', '@cImport', '@cInclude', '@clz', '@cmpxchgStrong',
+					'@cmpxchgWeak', '@compileError', '@compileLog', '@constCast', '@ctz', '@cUndef', '@cVaArg', '@cVaCopy',
+					'@cVaEnd', '@cVaStart', '@divExact', '@divFloor', '@divTrunc', '@embedFile', '@enumFromInt', '@errorFromInt',
+					'@errorName', '@errorReturnTrace', '@errorCast', '@export', '@extern', '@fence', '@field', '@fieldParentPtr',
+					'@floatCast', '@floatFromInt', '@frameAddress', '@hasDecl', '@hasField', '@import', '@inComptime',
+					'@intCast', '@intFromBool', '@intFromEnum', '@intFromError', '@intFromFloat', '@intFromPtr', '@max',
+					'@memcpy', '@memset', '@min', "@wasmMemorySize", '@wasmMemoryGrow', '@mod', '@mulWithOverflow', '@panic',
+					'@popCount', '@prefetch', '@ptrCast', '@ptrFromInt', '@rem', '@returnAddress', '@select', '@setAlignStack',
+					'@setCold', '@setEvalBranchQuota', '@setFloatMode', '@setRuntimeSafety', '@shlExact', '@shlWithOverflow',
+					'@shrExact', '@shuffle', '@sizeOf', '@splat', '@reduce', '@src', '@sqrt', '@sin', '@cos', '@tan', '@exp',
+					'@exp2', '@log', '@log2', '@log10', '@abs', '@floor', '@ceil', '@trunc', '@round', '@subWithOverflow',
+					'@tagName', '@This', '@trap', '@truncate', '@Type', '@typeInfo', '@typeName', '@TypeOf', '@unionint',
+					'@Vector', '@volatileCast', '@workGroupId', '@workGroupSize', '@workItemId',
+				],
+				[
+					'i8', 'u8', 'i16', 'u16', 'i32', 'u32', 'i64', 'u64', 'i128', 'u128', 'isize', 'usize',
+					'c_char', 'c_short', 'c_ushort', 'c_int', 'c_uint', 'c_long', 'c_ulong', 'c_longlong',
+					'c_ulonglong', 'c_longdouble',
+					'f16', 'f32', 'f64', 'f80', 'f128', 'bool', 'anyopaque', 'void', 'noreturn', 'type',
+					'anyerror', 'comptime_init', 'comptime_float',
+				],
+				[
+					'<=>', '<<=', '>>=', '...',
+					'++', '--', '==', '!=', '>=', '<=', '&&', '||', '<<', '>>',
+					'+=', '-=', '*=', '/=', '%=', '&=', '|=', '^=', '->', '::',
+					'+%', '+%=', '+|', '+|=', '-%', '-%=', '*%', '*%=', '*|', '*|=',
+					'.?', '++', '**', '.*',
+				],
+				mcs: '',
+				mce: '',
+			),
 			default => Syntax::default(),
 		};
 	}

src/Kilo.php

@@ -2,7 +2,48 @@
 
 namespace Aviat\Kilo;
 
-use Aviat\Kilo\Enum\{Color, Highlight, RawKeyCode};
+use Aviat\Kilo\Enum\Highlight;
+use Aviat\Kilo\Enum\RawKeyCode;
+use Aviat\Kilo\Terminal\Enum\Color;
+use Aviat\Kilo\Terminal\Enum\Color256;
+
+// -----------------------------------------------------------------------------
+// ! App Constants
+// -----------------------------------------------------------------------------
+
+const KILO_VERSION = '0.3.0';
+const KILO_TAB_STOP = 4;
+const KILO_QUIT_TIMES = 3;
+
+const NO_MATCH = -1;
+const T_RAW = -1;
+
+// -----------------------------------------------------------------------------
+// ! App Config
+// -----------------------------------------------------------------------------
+
+/**
+ * Configure syntax highlighting colors
+ */
+function get_syntax_color(Highlight $hl): Color | Color256 | int {
+	return match ($hl)
+	{
+		Highlight::Comment => Color::FG_CYAN,
+		Highlight::MultiLineComment => Color::FG_BRIGHT_BLACK,
+		Highlight::Keyword1 => Color::FG_YELLOW,
+		Highlight::Keyword2 => Color::FG_GREEN,
+		Highlight::String => Color::FG_MAGENTA,
+		Highlight::Character => Color::FG_BRIGHT_MAGENTA,
+		Highlight::Number => Color::FG_BRIGHT_RED,
+		Highlight::Operator => Color::FG_BRIGHT_GREEN,
+		Highlight::Variable => Color::FG_BRIGHT_CYAN,
+		Highlight::Delimiter => Color::FG_BLUE,
+		Highlight::Invalid => Color::BG_BRIGHT_RED,
+		Highlight::SearchMatch => Color::INVERT,
+		Highlight::Identifier => Color::FG_BRIGHT_WHITE,
+		default => Color::FG_WHITE,
+	};
+}
 
 // ----------------------------------------------------------------------------
 // ! C function/macro equivalents
@@ -11,9 +52,6 @@ use Aviat\Kilo\Enum\{Color, Highlight, RawKeyCode};
 /**
  * Do bit twiddling to convert a letter into
  * its Ctrl-letter equivalent ordinal ascii value
- *
- * @param string $char
- * @return int
  */
 function ctrl_key(string $char): int
 {
@@ -30,9 +68,6 @@ function ctrl_key(string $char): int
 
 /**
  * Does the one-character string contain an ascii ordinal value?
- *
- * @param string $single_char
- * @return bool
  */
 function is_ascii(string $single_char): bool
 {
@@ -46,9 +81,6 @@ function is_ascii(string $single_char): bool
 
 /**
  * Does the one-character string contain an ascii control character?
- *
- * @param string $char
- * @return bool
  */
 function is_ctrl(string $char): bool
 {
@@ -58,9 +90,6 @@ function is_ctrl(string $char): bool
 
 /**
  * Does the one-character string contain an ascii number?
- *
- * @param string $char
- * @return bool
  */
 function is_digit(string $char): bool
 {
@@ -70,9 +99,6 @@ function is_digit(string $char): bool
 
 /**
  * Does the one-character string contain ascii whitespace?
- *
- * @param string $char
- * @return bool
  */
 function is_space(string $char): bool
 {
@@ -94,9 +120,6 @@ function is_space(string $char): bool
 
 /**
  * Does the one-character string contain a character that separates tokens?
- *
- * @param string $char
- * @return bool
  */
 function is_separator(string $char): bool
 {
@@ -131,12 +154,7 @@ function array_replace_range(array &$array, int $offset, int $length, mixed $val
 }
 
 /**
- * Does the string $haystack contain $str, optionally searching from $offset?
- *
- * @param string $haystack
- * @param string $str
- * @param int|null $offset
- * @return bool
+ * Does the string $haystack contain $str, optionally searching from $offset
  */
 function str_has(string $haystack, string $str, ?int $offset = NULL): bool
 {
@@ -150,39 +168,8 @@ function str_has(string $haystack, string $str, ?int $offset = NULL): bool
 		: \str_contains($haystack, $str);
 }
 
-/**
- * Get the ASCII color escape number for the specified syntax type
- *
- * @param int $hl
- * @return int
- */
-function syntax_to_color(int $hl): int
-{
-	return match ($hl)
-	{
-		Highlight::COMMENT => Color::FG_CYAN,
-		Highlight::ML_COMMENT => Color::FG_BRIGHT_BLACK,
-		Highlight::KEYWORD1 => Color::FG_YELLOW,
-		Highlight::KEYWORD2 => Color::FG_GREEN,
-		Highlight::STRING => Color::FG_MAGENTA,
-		Highlight::CHARACTER => Color::FG_BRIGHT_MAGENTA,
-		Highlight::NUMBER => Color::FG_BRIGHT_RED,
-		Highlight::OPERATOR => Color::FG_BRIGHT_GREEN,
-		Highlight::VARIABLE => Color::FG_BRIGHT_CYAN,
-		Highlight::DELIMITER => Color::FG_BLUE,
-		Highlight::INVALID => Color::BG_BRIGHT_RED,
-		Highlight::MATCH => Color::INVERT,
-		Highlight::IDENTIFIER => Color::FG_BRIGHT_WHITE,
-		default => Color::FG_WHITE,
-	};
-}
-
 /**
  * Replace tabs with the specified number of spaces.
- *
- * @param string $str
- * @param int $number
- * @return string
  */
 function tabs_to_spaces(string $str, int $number = KILO_TAB_STOP): string
 {
@@ -210,11 +197,17 @@ function error_code_name(int $code): string
 	};
 }
 
+/**
+ * Adds two numbers to at most the $max value
+ */
 function saturating_add(int $a, int $b, int $max): int
 {
 	return ($a + $b > $max) ? $max : $a + $b;
 }
 
+/**
+ * Delete one number from another, down to zero at the least
+ */
 function saturating_sub(int $a, int $b): int
 {
 	if ($b > $a)

src/Row.php

@@ -28,11 +28,6 @@ class Row {
 
 	/**
 	 * Create a row in the current document
-	 *
-	 * @param Document $parent
-	 * @param string $chars
-	 * @param int $idx
-	 * @return self
 	 */
 	public static function new(Document $parent, string $chars, int $idx): self
 	{
@@ -45,8 +40,6 @@ class Row {
 
 	/**
 	 * Create an empty Row
-	 *
-	 * @return self
 	 */
 	public static function default(): self
 	{
@@ -61,19 +54,22 @@ class Row {
 		/**
 		 * The document that this row belongs to
 		 */
-		private Document $parent,
+		private readonly Document $parent,
 
 		/**
-		 * @var string The raw characters in the row
+		 * The raw characters in the row
 		 */
 		private string $chars,
 
 		/**
-		 * @var int The line number of the current row
+		 * The line number of the current row
 		 */
 		public int $idx,
 	) {}
 
+	/**
+	 * Set up dynamically generated properties
+	 */
 	public function __get(string $name): mixed
 	{
 		return match ($name)
@@ -87,8 +83,6 @@ class Row {
 
 	/**
 	 * Convert the row contents to a string for saving
-	 *
-	 * @return string
 	 */
 	public function __toString(): string
 	{
@@ -97,8 +91,6 @@ class Row {
 
 	/**
 	 * Set the properties to display for var_dump
-	 *
-	 * @return array
 	 */
 	public function __debugInfo(): array
 	{
@@ -114,8 +106,6 @@ class Row {
 
 	/**
 	 * Is this row a valid part of a document?
-	 *
-	 * @return bool
 	 */
 	public function isValid(): bool
 	{
@@ -125,8 +115,8 @@ class Row {
 	/**
 	 * Insert the string or character $c at index $at
 	 *
-	 * @param int $at
-	 * @param string $c
+	 * @param int $at The point to insert at
+	 * @param string $c The string to insert
 	 */
 	public function insert(int $at, string $c): void
 	{
@@ -143,8 +133,6 @@ class Row {
 
 	/**
 	 * Append $s to the current row
-	 *
-	 * @param string $s
 	 */
 	public function append(string $s): void
 	{
@@ -155,7 +143,7 @@ class Row {
 	/**
 	 * Delete the character at the specified index
 	 *
-	 * @param int $at
+	 * @param int $at The index to delete
 	 */
 	public function delete(int $at): void
 	{
@@ -170,8 +158,6 @@ class Row {
 
 	/**
 	 * Set the contents of the Row
-	 *
-	 * @param string $chars
 	 */
 	public function setChars(string $chars): void
 	{
@@ -197,7 +183,7 @@ class Row {
 	 */
 	public function highlight(): void
 	{
-		$this->hl = array_fill(0, $this->rsize, Highlight::NORMAL);
+		$this->hl = array_fill(0, $this->rsize, Highlight::Normal);
 
 		if ($this->parent->fileType->name === 'PHP')
 		{
@@ -230,10 +216,10 @@ class Row {
 			{
 				if ($inComment)
 				{
-					$this->hl[$i] = Highlight::ML_COMMENT;
+					$this->hl[$i] = Highlight::MultiLineComment;
 					if (substr($this->render, $i, $mceLen) === $mce)
 					{
-						array_replace_range($this->hl, $i, $mceLen, Highlight::ML_COMMENT);
+						array_replace_range($this->hl, $i, $mceLen, Highlight::MultiLineComment);
 						$i += $mceLen;
 						$inComment = FALSE;
 						continue;
@@ -245,7 +231,7 @@ class Row {
 
 				if (substr($this->render, $i, $mcsLen) === $mcs)
 				{
-					array_replace_range($this->hl, $i, $mcsLen, Highlight::ML_COMMENT);
+					array_replace_range($this->hl, $i, $mcsLen, Highlight::MultiLineComment);
 					$i += $mcsLen;
 					$inComment = TRUE;
 					continue;
@@ -259,7 +245,7 @@ class Row {
 				|| $this->highlightSecondaryKeywords($i, $syntax)
 				|| $this->highlightString($i, $syntax)
 				|| $this->highlightOperators($i, $syntax)
-				|| $this->highlightCommonDelimeters($i)
+				|| $this->highlightCommonDelimiters($i)
 				|| $this->highlightCommonOperators($i, $syntax)
 				|| $this->highlightNumber($i, $syntax)
 			) {
@@ -279,15 +265,11 @@ class Row {
 
 	/**
 	 * Highlight number literals
-	 *
-	 * @param int $i
-	 * @param Syntax $opts
-	 * @return bool
 	 */
 	protected function highlightNumber(int &$i, Syntax $opts): bool
 	{
 		$char = $this->render[$i];
-		if ($opts->numbers() && is_digit($char) && $this->hl[$i] === Highlight::NORMAL)
+		if ($opts->numbers() && is_digit($char) && $this->hl[$i] === Highlight::Normal)
 		{
 			if ($i > 0)
 			{
@@ -300,7 +282,7 @@ class Row {
 
 			while (true)
 			{
-				$this->hl[$i] = Highlight::NUMBER;
+				$this->hl[$i] = Highlight::Number;
 				$i++;
 
 				if ($i < strlen($this->render))
@@ -323,14 +305,8 @@ class Row {
 
 	/**
 	 * Highlight keywords and/or operators
-	 *
-	 * @param int $i
-	 * @param array $keywords
-	 * @param int $syntaxType
-	 * @param bool $requireSeparator
-	 * @return bool
 	 */
-	protected function highlightWord(int &$i, array $keywords, int $syntaxType, bool $requireSeparator = true): bool
+	protected function highlightWord(int &$i, array $keywords, Highlight $syntaxType, bool $requireSeparator = true): bool
 	{
 		if ($i > 0 && $requireSeparator)
 		{
@@ -362,15 +338,10 @@ class Row {
 
 	/**
 	 * Highlight a single-char character from a list of provided keywords
-	 *
-	 * @param int $i
-	 * @param array $chars
-	 * @param int $syntaxType
-	 * @return bool
 	 */
-	protected function highlightChar(int &$i, array $chars, int $syntaxType): bool
+	protected function highlightChar(int &$i, array $chars, Highlight $syntaxType): bool
 	{
-		if ($this->hl[$i] !== Highlight::NORMAL)
+		if ($this->hl[$i] !== Highlight::Normal)
 		{
 			return false;
 		}
@@ -390,46 +361,30 @@ class Row {
 
 	/**
 	 * Highlight primary keywords
-	 *
-	 * @param int $i
-	 * @param Syntax $opts
-	 * @return bool
 	 */
 	protected function highlightPrimaryKeywords(int &$i, Syntax $opts): bool
 	{
-		return $this->highlightWord($i, $opts->keywords1, Highlight::KEYWORD1);
+		return $this->highlightWord($i, $opts->keywords1, Highlight::Keyword1);
 	}
 
 	/**
 	 * Highlight secondary keywords
-	 *
-	 * @param int $i
-	 * @param Syntax $opts
-	 * @return bool
 	 */
 	protected function highlightSecondaryKeywords(int &$i, Syntax $opts): bool
 	{
-		return $this->highlightWord($i, $opts->keywords2, Highlight::KEYWORD2);
+		return $this->highlightWord($i, $opts->keywords2, Highlight::Keyword2);
 	}
 
 	/**
 	 * Highlight language-specific operators
-	 *
-	 * @param int $i
-	 * @param Syntax $opts
-	 * @return bool
 	 */
 	protected function highlightOperators(int &$i, Syntax $opts): bool
 	{
-		return $this->highlightWord($i, $opts->operators, Highlight::OPERATOR, false);
+		return $this->highlightWord($i, $opts->operators, Highlight::Operator, false);
 	}
 
 	/**
 	 * Highlight common single-character operators
-	 *
-	 * @param int $i
-	 * @param Syntax $opts
-	 * @return bool
 	 */
 	protected function highlightCommonOperators(int &$i, Syntax $opts): bool
 	{
@@ -441,31 +396,24 @@ class Row {
 		return $this->highlightChar(
 			$i,
 			['+', '-', '*', '/', '<', '^', '>', '%', '=', ':', ',', ';', '&', '~', '!', '|', '.'],
-			Highlight::OPERATOR
+			Highlight::Operator
 		);
 	}
 
 	/**
 	 * Highlight brackets and braces
-	 *
-	 * @param int $i
-	 * @return bool
 	 */
-	protected function highlightCommonDelimeters(int &$i): bool
+	protected function highlightCommonDelimiters(int &$i): bool
 	{
 		return $this->highlightChar(
 			$i,
 			['{', '}', '[', ']', '(', ')'],
-			Highlight::DELIMITER
+			Highlight::Delimiter
 		);
 	}
 
 	/**
 	 * Highlight character literals
-	 *
-	 * @param int $i
-	 * @param Syntax $opts
-	 * @return bool
 	 */
 	protected function highlightCharacter(int &$i, Syntax $opts): bool
 	{
@@ -489,7 +437,7 @@ class Row {
 			$closingChar = $this->render[$closingIndex];
 			if ($closingChar === "'")
 			{
-				array_replace_range($this->hl, $i, $closingIndex - $i + 1, Highlight::CHARACTER);
+				array_replace_range($this->hl, $i, $closingIndex - $i + 1, Highlight::Character);
 				$i = $closingIndex + 1;
 
 				return true;
@@ -501,10 +449,6 @@ class Row {
 
 	/**
 	 * Highlight single-line comments
-	 *
-	 * @param int $i
-	 * @param Syntax $opts
-	 * @return bool
 	 */
 	protected function highlightComment(int &$i, Syntax $opts): bool
 	{
@@ -518,7 +462,7 @@ class Row {
 
 		if ($scsLen > 0 && substr($this->render, $i, $scsLen) === $scs)
 		{
-			array_replace_range($this->hl, $i, $this->rsize - $i, Highlight::COMMENT);
+			array_replace_range($this->hl, $i, $this->rsize - $i, Highlight::Comment);
 			$i = $this->rsize;
 
 			return true;
@@ -529,10 +473,6 @@ class Row {
 
 	/**
 	 * Highlight quote-delimited string literals
-	 *
-	 * @param int $i
-	 * @param Syntax $opts
-	 * @return bool
 	 */
 	protected function highlightString(int &$i, Syntax $opts): bool
 	{
@@ -547,18 +487,18 @@ class Row {
 		if ($opts->strings() && ($char === '"' || $char === '\''))
 		{
 			$quote = $char;
-			$this->hl[$i] = Highlight::STRING;
+			$this->hl[$i] = Highlight::String;
 			$i++;
 
 			while ($i < $this->rsize)
 			{
 				$char = $this->render[$i];
-				$this->hl[$i] = Highlight::STRING;
+				$this->hl[$i] = Highlight::String;
 
 				// Check for escaped character
 				if ($char === '\\' && $i+1 < $this->rsize)
 				{
-					$this->hl[$i + 1] = Highlight::STRING;
+					$this->hl[$i + 1] = Highlight::String;
 					$i += 2;
 					continue;
 				}
@@ -617,20 +557,20 @@ class Row {
 				if ($commentEnd !== FALSE)
 				{
 					$inComment = FALSE;
-					array_replace_range($this->hl, 0, $commentEnd + 2, Highlight::ML_COMMENT);
+					array_replace_range($this->hl, 0, $commentEnd + 2, Highlight::MultiLineComment);
 					$offset = $commentEnd;
 					continue;
 				}
 
 				// Otherwise, just set the whole row
-				$this->hl = array_fill(0, $this->rsize, Highlight::ML_COMMENT);
-				$this->hl[$offset] = Highlight::ML_COMMENT;
+				$this->hl = array_fill(0, $this->rsize, Highlight::MultiLineComment);
+				$this->hl[$offset] = Highlight::MultiLineComment;
 				break;
 			}
 
 			$char = $token['char'];
 			$charLen = strlen($char);
-			if ($charLen === 0 || $offset >= $this->rsize)
+			if ($charLen === 0)
 			{
 				continue;
 			}
@@ -647,7 +587,7 @@ class Row {
 				// Single line comments
 				if (str_contains($char, '//') || str_contains($char, '#'))
 				{
-					array_replace_range($this->hl, $charStart, $charLen, Highlight::COMMENT);
+					array_replace_range($this->hl, $charStart, $charLen, Highlight::Comment);
 					break;
 				}
 
@@ -662,13 +602,13 @@ class Row {
 					if ($hasEnd)
 					{
 						$len = $end - $start + 2;
-						array_replace_range($this->hl, $start, $len, Highlight::ML_COMMENT);
+						array_replace_range($this->hl, $start, $len, Highlight::MultiLineComment);
 						$inComment = FALSE;
 					}
 					else
 					{
 						$inComment = TRUE;
-						array_replace_range($this->hl, $start, $charLen - $offset, Highlight::ML_COMMENT);
+						array_replace_range($this->hl, $start, $charLen - $offset, Highlight::MultiLineComment);
 						$offset = $start + $charLen - $offset;
 					}
 				}
@@ -684,16 +624,16 @@ class Row {
 
 			$highlight = match(true) {
 				// Matches a predefined PHP token
-				$token['type'] !== T_RAW && $tokenHighlight !== Highlight::NORMAL
+				$token['type'] !== T_RAW && $tokenHighlight !== Highlight::Normal
 				=> $tokenHighlight,
 
 				// Matches a specific syntax character
-				$charHighlight !== Highlight::NORMAL => $charHighlight,
+				$charHighlight !== Highlight::Normal => $charHighlight,
 
-				default => Highlight::NORMAL,
+				default => Highlight::Normal,
 			};
 
-			if ($highlight !== Highlight::NORMAL)
+			if ($highlight !== Highlight::Normal)
 			{
 				array_replace_range($this->hl, $charStart, $charLen, $highlight);
 				$offset = $charEnd;

src/Syntax.php

@@ -2,6 +2,11 @@
 
 namespace Aviat\Kilo;
 
+use Aviat\Kilo\Enum\SyntaxFamily;
+
+/**
+ * A representation of the syntax of a programming language
+ */
 class Syntax {
 	// Tokens for PHP files
 	public array $tokens = [];
@@ -20,6 +25,7 @@ class Syntax {
 		bool $hasCharType = false,
 		bool $highlightCharacters = false,
 		bool $hasCommonOperators = true,
+		SyntaxFamily $syntaxFamily = SyntaxFamily::C,
 	): self
 	{
 		return new self(
@@ -36,16 +42,17 @@ class Syntax {
 			$highlightStrings,
 			$highlightComments,
 			$hasCommonOperators,
+			$syntaxFamily,
 		);
 	}
 
 	public static function default(): self
 	{
 		return self::new(
-			'No filetype', slcs:
-			'', mcs:
-			'', mce:
-			'',
+			'No filetype',
+			slcs: '',
+			mcs: '',
+			mce: '',
 			highlightNumbers: false,
 			highlightStrings: false,
 			hasCommonOperators: false,
@@ -79,6 +86,8 @@ class Syntax {
 		private bool $highlightComments,
 		/** should we highlight common operators? */
 		private bool $hasCommonOperators,
+		/** What kind of general syntax family does this file belong to? */
+		private SyntaxFamily $syntaxFamily,
 	) {}
 
 	public function numbers(): bool
@@ -105,7 +114,7 @@ class Syntax {
 	{
 		return $this->highlightComments
 			&& strlen($this->multiLineCommentStart) !== 0
-			&& strlen($this->multiLineCommentStart) !== 0;
+			&& strlen($this->multiLineCommentEnd) !== 0;
 	}
 
 	public function comments(): bool
@@ -117,4 +126,9 @@ class Syntax {
 	{
 		return $this->hasCommonOperators;
 	}
+
+	public function syntaxFamily(): SyntaxFamily
+	{
+		return $this->syntaxFamily;
+	}
 }

src/Terminal/ANSI.php

@@ -1,6 +1,9 @@
 <?php declare(strict_types=1);
 
-namespace Aviat\Kilo;
+namespace Aviat\Kilo\Terminal;
+
+use Aviat\Kilo\Terminal\Enum\Color;
+use Aviat\Kilo\Terminal\Enum\Color256;
 
 /**
  * ANSI
@@ -31,8 +34,18 @@ class ANSI {
 
 	public const BOLD_TEXT = "\e[1m";
 
+	public const DIM_TEXT = "\e[2m";
+
+	public const ITALIC_TEXT = "\d[3m";
+
 	public const UNDERLINE_TEXT = "\e[4m";
 
+	public const BLINKING_TEXT = "\e[5m";
+
+	public const INVERSE_TEXT = "\e[7m";
+
+	public const STRIKE_TEXT = "\e[9m";
+
 	/**
 	 * Move the cursor to position 0,0 which is the top left
 	 */
@@ -46,14 +59,48 @@ class ANSI {
 	public const SHOW_CURSOR = "\e[?25h";
 
 	/**
-	 * Generate the ascii sequence for basic text color
+	 * Generate the ascii sequence for basic foreground text color
 	 *
-	 * @param int $color
+	 * @param Color|Color256|int $color
+	 * @param Color $ground
 	 * @return string
 	 */
-	public static function color(int $color): string
+	public static function color(Color|Color256| int $color, Color $ground = Color::Fg): string
 	{
-		return self::escapeSequence('%dm', $color);
+		if ( ! $color instanceof Color)
+		{
+			return self::color256($color, $ground);
+		}
+
+		return self::escapeSequence('%dm', $color->value);
+	}
+
+	/**
+	 * Generate the ANSI sequence for a 256 mode color
+	 *
+	 * @param Color256 | int $color
+	 * @param Color $ground
+	 * @return string
+	 */
+	public static function color256(Color256| int $color, Color $ground = Color::Fg): string
+	{
+		if ($color instanceof Color256)
+		{
+			$color = $color->value;
+		}
+
+		return self::escapeSequence('%d;5;%dm', $ground->value, $color);
+	}
+
+	/**
+	 * Invert the foreground/background on a text segment
+	 *
+	 * @param string $text
+	 * @return string
+	 */
+	public static function invert(string $text): string
+	{
+		return self::INVERSE_TEXT . $text . self::RESET_TEXT;
 	}
 
 	/**

src/Terminal/C.php

@@ -0,0 +1,27 @@
+<?php declare(strict_types=1);
+
+namespace Aviat\Kilo\Terminal;
+
+use Aviat\Kilo\Traits;
+
+/**
+ * Just a namespace for C language constants
+ */
+class C {
+	use Traits\ConstList;
+
+	// ------------------------------------------------------------------------
+	// ! Misc I/O constants
+	// ------------------------------------------------------------------------
+
+	public const STDIN_FILENO = 0;
+	public const STDOUT_FILENO = 1;
+	public const STDERR_FILENO = 2;
+	public const TCSANOW = 0;
+	public const TCSAFLUSH = 2;
+
+	// ------------------------------------------------------------------------
+	// ! IOCTL constants
+	// ------------------------------------------------------------------------
+	public const TIOCGWINSZ = 0x5413;
+}

src/Terminal/Enum/Color.php

@@ -0,0 +1,55 @@
+<?php declare(strict_types=1);
+
+namespace Aviat\Kilo\Terminal\Enum;
+
+use Aviat\Kilo\Traits;
+
+/**
+ * ANSI Color escape sequences
+ * @enum
+ */
+enum Color: int {
+	use Traits\ConstList;
+
+	// Foreground/Background
+	case Fg = 38;
+	case Bg = 48;
+
+	// Foreground colors
+	case FG_BLACK = 30;
+	case FG_RED = 31;
+	case FG_GREEN = 32;
+	case FG_YELLOW = 33;
+	case FG_BLUE = 34;
+	case FG_MAGENTA = 35;
+	case FG_CYAN = 36;
+	case FG_WHITE = 37;
+	case FG_BRIGHT_BLACK = 90;
+	case FG_BRIGHT_RED = 91;
+	case FG_BRIGHT_GREEN = 92;
+	case FG_BRIGHT_YELLOW = 93;
+	case FG_BRIGHT_BLUE = 94;
+	case FG_BRIGHT_MAGENTA = 95;
+	case FG_BRIGHT_CYAN = 96;
+	case FG_BRIGHT_WHITE = 97;
+
+	// Background colors
+	case BG_BLACK = 40;
+	case BG_RED = 41;
+	case BG_GREEN = 42;
+	case BG_YELLOW = 43;
+	case BG_BLUE = 44;
+	case BG_MAGENTA = 45;
+	case BG_CYAN = 46;
+	case BG_WHITE = 47;
+	case BG_BRIGHT_BLACK = 100;
+	case BG_BRIGHT_RED = 101;
+	case BG_BRIGHT_GREEN = 102;
+	case BG_BRIGHT_YELLOW = 103;
+	case BG_BRIGHT_BLUE = 104;
+	case BG_BRIGHT_MAGENTA = 105;
+	case BG_BRIGHT_CYAN = 106;
+	case BG_BRIGHT_WHITE = 107;
+
+	case INVERT = 7;
+}

src/Terminal/Enum/Color256.php

@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace Aviat\Kilo\Terminal\Enum;
+
+use Aviat\Kilo\Traits;
+
+/**
+ * ANSI 256 Color escape sequences
+ * @enum
+ */
+enum Color256: int {
+	use Traits\ConstList;
+
+	// Base colors for 256-color setup
+	case Black = 0;
+	case Red = 1;
+	case Green = 2;
+	case Yellow = 3;
+	case Blue = 4;
+	case Magenta = 5;
+	case Cyan = 6;
+	case White = 7;
+	case BrightBlack = 8;
+	case BrightRed = 9;
+	case BrightGreen = 10;
+	case BrightYellow = 11;
+	case BrightBlue = 12;
+	case BrightMagenta = 13;
+	case BrightCyan = 14;
+	case BrightWhite = 15;
+}

src/Terminal/Enum/LibType.php

@@ -0,0 +1,11 @@
+<?php declare(strict_types=1);
+
+namespace Aviat\Kilo\Terminal\Enum;
+
+use Aviat\Kilo\Traits;
+
+enum LibType: string {
+	use Traits\ConstList;
+	case GLIBC = "glibc";
+	case MUSL = "musl";
+}

src/Terminal/Terminal.php

@@ -1,9 +1,9 @@
 <?php declare(strict_types=1);
 
-namespace Aviat\Kilo;
+namespace Aviat\Kilo\Terminal;
 
-use Aviat\Kilo\Enum\RawKeyCode;
 use Aviat\Kilo\Enum\KeyType;
+use Aviat\Kilo\Enum\RawKeyCode;
 use Aviat\Kilo\Type\TerminalSize;
 
 class Terminal {
@@ -81,35 +81,35 @@ class Terminal {
 	 * Get the last key input from the terminal and convert to a
 	 * more useful format
 	 *
-	 * @return string
+	 * @return string|KeyType
 	 */
-	public static function readKey(): string
+	public static function readKey(): string|KeyType
 	{
 		$c = Terminal::read();
 
 		return match($c)
 		{
 			// Unambiguous mappings
-			RawKeyCode::ARROW_DOWN => KeyType::ARROW_DOWN,
-			RawKeyCode::ARROW_LEFT => KeyType::ARROW_LEFT,
-			RawKeyCode::ARROW_RIGHT => KeyType::ARROW_RIGHT,
-			RawKeyCode::ARROW_UP => KeyType::ARROW_UP,
-			RawKeyCode::DELETE => KeyType::DELETE,
-			RawKeyCode::ENTER => KeyType::ENTER,
-			RawKeyCode::PAGE_DOWN => KeyType::PAGE_DOWN,
-			RawKeyCode::PAGE_UP => KeyType::PAGE_UP,
+			RawKeyCode::ARROW_DOWN => KeyType::ArrowDown,
+			RawKeyCode::ARROW_LEFT => KeyType::ArrowLeft,
+			RawKeyCode::ARROW_RIGHT => KeyType::ArrowRight,
+			RawKeyCode::ARROW_UP => KeyType::ArrowUp,
+			RawKeyCode::DELETE => KeyType::Delete,
+			RawKeyCode::ENTER => KeyType::Enter,
+			RawKeyCode::PAGE_DOWN => KeyType::PageDown,
+			RawKeyCode::PAGE_UP => KeyType::PageUp,
 
 			// Backspace
-			RawKeyCode::CTRL('h'), RawKeyCode::BACKSPACE => KeyType::BACKSPACE,
+			RawKeyCode::CTRL('h'), RawKeyCode::BACKSPACE => KeyType::Backspace,
 
 			// Escape
-			RawKeyCode::CTRL('l'), RawKeyCode::ESCAPE => KeyType::ESCAPE,
+			RawKeyCode::CTRL('l'), RawKeyCode::ESCAPE => KeyType::Escape,
 
 			// Home Key
-			"\eOH", "\e[7~", "\e[1~", ANSI::RESET_CURSOR => KeyType::HOME,
+			"\eOH", "\e[7~", "\e[1~", ANSI::RESET_CURSOR => KeyType::Home,
 
 			// End Key
-			"\eOF", "\e[4~", "\e[8~", "\e[F" => KeyType::END,
+			"\eOF", "\e[4~", "\e[8~", "\e[F" => KeyType::End,
 
 			default => $c,
 		};
@@ -126,7 +126,6 @@ class Terminal {
 	/**
 	 * Write to the stdout stream
 	 *
-	 * @codeCoverageIgnore
 	 * @param string $str
 	 * @param int|NULL $len
 	 * @return int|false
@@ -154,7 +153,6 @@ class Terminal {
 	 * See if tput exists for fallback terminal size detection
 	 *
 	 * @return bool
-	 * @codeCoverageIgnore
 	 */
 	private static function has_tput(): bool
 	{

src/Terminal/Termios.php

@@ -1,12 +1,11 @@
 <?php declare(strict_types=1);
 
-namespace Aviat\Kilo;
+namespace Aviat\Kilo\Terminal;
 
+use Aviat\Kilo\Terminal\Enum\LibType;
 use FFI;
 use FFI\CData;
 
-use Aviat\Kilo\Enum\C;
-
 /**
  * An implicit singleton wrapper around terminal settings to simplify enabling/disabling raw mode
  */
@@ -59,16 +58,13 @@ class Termios {
 		register_shutdown_function([static::class, 'disableRawMode']);
 
 		$termios = clone $instance->originalTermios;
-		$termios->c_iflag &= ~(C::BRKINT | C::ICRNL | C::INPCK | C::ISTRIP | C::IXON);
-		$termios->c_oflag = 0; // &= ~(C::OPOST);
-		$termios->c_cflag |= (C::CS8);
-		$termios->c_lflag &= ~( C::ECHO | C::ICANON | C::IEXTEN | C::ISIG );
-		$termios->c_cc[C::VMIN] = 0;
-		$termios->c_cc[C::VTIME] = 1;
 
-		// Turn on raw mode
+		// Use the stdlib func to set raw mode parameters
+		self::ffi()->cfmakeraw(FFI::addr($termios));
+
+		// Apply raw mode to the terminal
 		$res = self::ffi()
-			->tcsetattr(C::STDIN_FILENO, C::TCSAFLUSH, FFI::addr($termios));
+			->tcsetattr(C::STDIN_FILENO, C::TCSANOW, FFI::addr($termios));
 
 		return $res !== -1;
 	}
@@ -97,17 +93,21 @@ class Termios {
 	/**
 	 * Get the size of the current terminal window
 	 *
-	 * @codeCoverageIgnore
 	 * @return array|null
 	 */
 	public static function getWindowSize(): ?array
 	{
+		$res = NULL;
+
 		// First, try to get the answer from ioctl
 		$ffi = self::ffi();
 		$ws = $ffi->new('struct winsize');
 		if ($ws !== NULL)
 		{
-			$res = $ffi->ioctl(C::STDOUT_FILENO, C::TIOCGWINSZ, FFI::addr($ws));
+			$res = (self::getLibType() === LibType::MUSL)
+				? $ffi->tcgetwinsize(C::STDOUT_FILENO, FFI::addr($ws))
+				: $ffi->ioctl(C::STDOUT_FILENO, C::TIOCGWINSZ, FFI::addr($ws));
+
 			if ($res === 0 && $ws->ws_col !== 0 && $ws->ws_row !== 0)
 			{
 				return [$ws->ws_row, $ws->ws_col];
@@ -117,14 +117,33 @@ class Termios {
 		return null;
 	}
 
+	private static function getLibType(): LibType
+	{
+		static $type;
+
+		if ($type === NULL)
+		{
+			$maybeLibc = "/usr/lib/libc.so";
+			if (file_exists($maybeLibc))
+			{
+				$rawLibInfo = (string)shell_exec($maybeLibc);
+				if (str_contains(strtolower($rawLibInfo), "musl"))
+				{
+					$type = LibType::MUSL;
+				}
+			}
+
+			$type = LibType::GLIBC;
+		}
+
+		return $type;
+	}
+
 	private static function getInstance(): self
 	{
 		static $instance;
 
-		if ($instance === NULL)
-		{
-			$instance = new self();
-		}
+		$instance ??= new self();
 
 		return $instance;
 	}
@@ -140,6 +159,12 @@ class Termios {
 
 		if ($ffi === NULL)
 		{
+			if (self::getLibType() === LibType::MUSL)
+			{
+				$ffi = FFI::load(__DIR__ . '/ffi_musl.h');
+				return $ffi;
+			}
+
 			$ffi = FFI::load(__DIR__ . '/ffi.h');
 		}
 

src/Terminal/TermiosException.php

@@ -1,11 +1,14 @@
 <?php declare(strict_types=1);
 
-namespace Aviat\Kilo;
+namespace Aviat\Kilo\Terminal;
 
 use Throwable;
 
 class TermiosException extends \UnexpectedValueException {
-	public function __construct($message = 'Failed to apply terminal settings', $code = 0, Throwable $previous = NULL)
+	public function __construct(
+		string $message = 'Failed to apply terminal settings',
+		int $code = 0,
+		Throwable $previous = NULL)
 	{
 		parent::__construct($message, $code, $previous);
 	}

src/Terminal/ffi.h

@@ -9,7 +9,7 @@
 // PHP 'constants' for FFI integration
 // These seem to be the only define statements supported by the FFI integration
 #define FFI_SCOPE "terminal"
-#define FFI_LIB "libc.so.6"
+#define FFI_LIB "libc.so"
 
 // Nonsense for a test with a single quote
 // Ignored by PHP due to the octothorpe (#)
@@ -55,6 +55,7 @@ struct termios
 
 int tcgetattr (int fd, struct termios *termios_p);
 int tcsetattr (int fd, int optional_actions, const struct termios *termios_p);
+void cfmakeraw(struct termios *);
 
 // -----------------------------------------------------------------------------
 //! <sys/ioctl.h>

src/Terminal/ffi_musl.h

@@ -0,0 +1,70 @@
+/**
+ * Interfaces for PHP FFI
+ *
+ * Most of the structure code is cribbed from GLib
+ *
+ * Defines are not (generally) recognized by the FFI integration
+ */
+
+// PHP 'constants' for FFI integration
+// These seem to be the only define statements supported by the FFI integration
+#define FFI_SCOPE "terminal"
+#define FFI_LIB "libc.so"
+
+// Nonsense for a test with a single quote
+// Ignored by PHP due to the octothorpe (#)
+#if 0
+#	char* x = "String with \" escape char";
+#	char y = 'q';
+#endif
+
+// -----------------------------------------------------------------------------
+//! <termios.h>
+// -----------------------------------------------------------------------------
+
+/* Type of terminal control flag masks.  */
+typedef unsigned long int tcflag_t;
+
+/* Type of control characters.  */
+typedef unsigned char cc_t;
+
+/* Type of baud rate specifiers.  */
+typedef long int speed_t;
+
+/* Terminal control structure.  */
+struct termios
+{
+  /* Input modes.  */
+  tcflag_t c_iflag;
+
+  /* Output modes.  */
+  tcflag_t c_oflag;
+
+  /* Control modes.  */
+  tcflag_t c_cflag;
+
+  /* Local modes.  */
+  tcflag_t c_lflag;
+
+  /* Control characters.  */
+  cc_t c_cc[20];
+
+  /* Input and output baud rates.  */
+  speed_t __ispeed, __ospeed;
+};
+
+int tcgetattr (int fd, struct termios *termios_p);
+int tcsetattr (int fd, int optional_actions, const struct termios *termios_p);
+void cfmakeraw(struct termios *);
+int tcgetwinsize(int fd, struct winsize *);
+
+// -----------------------------------------------------------------------------
+//! <sys/ioctl.h>
+// -----------------------------------------------------------------------------
+struct winsize {
+	unsigned short ws_row;
+	unsigned short ws_col;
+	unsigned short ws_xpixel;
+	unsigned short ws_ypixel;
+};
+int ioctl (int, int, ...);

src/Tokens/PHP8.php

@@ -13,7 +13,7 @@ class PHP8 extends PhpToken {
 	private array $tokens = [];
 
 	/**
-	 * Use 'token_get_all' to get the tokens for a file,
+	 * Use 'PhpToken' to get the tokens for a file,
 	 * organized by row number
 	 *
 	 * @param string $code
@@ -66,7 +66,7 @@ class PHP8 extends PhpToken {
 		return $this->tokens;
 	}
 
-	protected function processObjectToken(\PhpToken $token): void
+	protected function processObjectToken(PhpToken $token): void
 	{
 		$currentLine = $token->line;
 		$char = tabs_to_spaces($token->text);

src/Traits/EnumTrait.php

@@ -0,0 +1,20 @@
+<?php declare(strict_types=1);
+
+namespace Aviat\Kilo\Traits;
+
+trait EnumTrait {
+	public function jsonSerialize(): mixed
+	{
+		if (property_exists($this, 'value'))
+		{
+			return $this->value;
+		}
+
+		if (property_exists($this, 'name'))
+		{
+			return $this->name;
+		}
+
+		return print_r($this, true);
+	}
+}

src/constants.php

@@ -1,13 +0,0 @@
-<?php declare(strict_types=1);
-
-namespace Aviat\Kilo;
-
-// -----------------------------------------------------------------------------
-// ! App Constants
-// -----------------------------------------------------------------------------
-const KILO_VERSION = '0.3.0';
-const KILO_TAB_STOP = 4;
-const KILO_QUIT_TIMES = 3;
-
-const NO_MATCH = -1;
-const T_RAW = -1;

test.php

@@ -2,6 +2,7 @@
 
 interface Ifoo {}
 
+// Let's see emoji! 🕯️😸⛩⛪
 abstract class Foo implements Ifoo {
 	/**
 	 * @param int $a
@@ -13,9 +14,12 @@ abstract class Foo implements Ifoo {
 	 */
 	abstract public function bar(int $a, float $b, array $c, callable $d, string $e): string;
 
+	#[ReturnTypeWillChange]
 	protected function doNothing(): void {}
 }
 
+#[Attribute]
+#[AllowDynamicProperties]
 class Test {
 	public function __construct(public string $foo, public string $bar) {}
 }
@@ -24,14 +28,17 @@ class Test {
  * Docblock comment
  */
 class FooBar extends Foo implements Ifoo {
-	public function bar(int $a, float $b, array $c, callable $d, string $e = 'default'): string
+	public function bar(int $a, float $b, array $c, callable $d, #[SensitiveParameter] string $e = 'default'): string
 	{
 		$cstr = print_r($c, TRUE);
 		$d();
 
-		return "{$a}, ${b}, " . $cstr;
+		$r = $this->operations($a, (int)$b);
+
+		return "{$a}, ${b}, " . $cstr . " = {$r}";
 	}
 
+	#[Test('a', 'b')]
 	private function operations(int $a, int $b): int
 	{
 		$this?->x?->bar();
@@ -64,6 +71,10 @@ trait Baz {
 	}
 }
 
+class BazFoo {
+	use Baz;
+}
+
 $square = fn (int $x) => $x ** 2;
 
 foreach ([-1, 0, 1, 2] as $x)
@@ -100,7 +111,7 @@ $q = ($x !== 2)
 
 /*
 Heredoc
-*/$z = $x + $y;
+*/$z = $x + $y[0];
 $sql = <<<SQL
 	SELECT * FROM "foo" WHERE "bar"='baz' AND id={$x};
 SQL;
@@ -117,7 +128,8 @@ TEMPLATE;
 <title>HTML</title>
 </head>
 <body>
-<h1><?= $_SERVER['HTTP_HOST'] ?></h1>
+<h1>Test</h1>
+<div><?php $bf = new BazFoo(); print_r($bf->about()) ?></div>
 </body>
 </html>
 <?php exit(); ?>

tests/ANSITest.php

@@ -2,8 +2,8 @@
 
 namespace Aviat\Kilo\Tests;
 
-use Aviat\Kilo\ANSI;
-use Aviat\Kilo\Enum\Color;
+use Aviat\Kilo\Terminal\ANSI;
+use Aviat\Kilo\Terminal\Enum\Color;
 use PHPUnit\Framework\TestCase;
 
 class ANSITest extends TestCase {

tests/EditorTest.php

@@ -47,7 +47,7 @@ class EditorTest extends TestCase {
 
 	public function testOpen(): void
 	{
-		$editor = MockEditor::mock('src/ffi.h');
+		$editor = MockEditor::mock('src/Terminal/ffi.h');
 
 		$state = json_encode($editor->__debugInfo(), JSON_THROW_ON_ERROR);
 		$this->assertMatchesJsonSnapshot($state);

tests/FunctionTest.php

@@ -2,8 +2,6 @@
 
 namespace Aviat\Kilo\Tests;
 
-use Aviat\Kilo\Enum\Color;
-use Aviat\Kilo\Enum\Highlight;
 use PHPUnit\Framework\TestCase;
 
 use function Aviat\Kilo\array_replace_range;
@@ -14,7 +12,6 @@ use function Aviat\Kilo\is_digit;
 use function Aviat\Kilo\is_separator;
 use function Aviat\Kilo\is_space;
 use function Aviat\Kilo\str_has;
-use function Aviat\Kilo\syntax_to_color;
 use function Aviat\Kilo\tabs_to_spaces;
 
 class FunctionTest extends TestCase {
@@ -88,14 +85,6 @@ class FunctionTest extends TestCase {
 		$this->assertTrue(is_separator("\0"));
 	}
 
-	public function test_syntax_to_color(): void
-	{
-		// Nonsense input returns FG::White
-		$this->assertEquals(syntax_to_color(999), Color::FG_WHITE);
-
-		$this->assertNotEquals(syntax_to_color(Highlight::OPERATOR), Color::FG_WHITE);
-	}
-
 	public function test_str_contains(): void
 	{
 		// Search from string offset

tests/TerminalTest.php

@@ -2,10 +2,9 @@
 
 namespace Aviat\Kilo\Tests;
 
+use Aviat\Kilo\Terminal\Terminal;
 use PHPUnit\Framework\TestCase;
 
-use Aviat\Kilo\Terminal;
-
 
 class TerminalTest extends TestCase {
 	public function test_getWindowSize(): void

tests/TermiosTest.php

@@ -2,7 +2,7 @@
 
 namespace Aviat\Kilo\Tests;
 
-use Aviat\Kilo\{Termios, TermiosException};
+use Aviat\Kilo\{Terminal\Termios, Terminal\TermiosException};
 use PHPUnit\Framework\TestCase;
 
 class TermiosTest extends TestCase {