Start to add 256 color rendering support

src/ANSI.php

@@ -2,6 +2,9 @@
 
 namespace Aviat\Kilo;
 
+use Aviat\Kilo\Enum\Color;
+use Aviat\Kilo\Enum\Color256;
+
 /**
  * ANSI
  */
@@ -58,14 +61,48 @@ class ANSI {
 	/**
 	 * Generate the ascii sequence for basic foreground text color
 	 *
-	 * @param Enum\Color $color
+	 * @param Color|Color256|int $color
+	 * @param Color $ground
 	 * @return string
 	 */
-	public static function color(Enum\Color $color): string
+	public static function color(Enum\Color | Enum\Color256 | int $color, Enum\Color $ground = Enum\Color::Fg): string
 	{
+		if ( ! $color instanceof Enum\Color)
+		{
+			return self::color256($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(Enum\Color256 | int $color, Enum\Color $ground = Enum\Color::Fg): string
+	{
+		if ($color instanceof Enum\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;
+	}
+
 	/**
 	 * Generate a sequence for an rgb color
 	 *

src/Editor.php

@@ -5,6 +5,7 @@ namespace Aviat\Kilo;
 use Aviat\Kilo\Type\TerminalSize;
 use Aviat\Kilo\Enum\{
 	Color,
+	Color256,
 	RawKeyCode,
 	KeyType,
 	Highlight,
@@ -429,9 +430,7 @@ 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);
@@ -496,7 +495,7 @@ 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;

src/Enum/Color.php

@@ -11,6 +11,10 @@ use Aviat\Kilo\Traits;
 enum Color: int {
 	use Traits\ConstList;
 
+	// Foreground/Background
+	case Fg = 38;
+	case Bg = 48;
+
 	// Foreground colors
 	case FG_BLACK = 30;
 	case FG_RED = 31;

src/Enum/Color256.php

@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace Aviat\Kilo\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/Enum/Highlight.php

@@ -25,6 +25,7 @@ enum Highlight implements JsonSerializable {
 	case SearchMatch;
 	case Identifier;
 	case Character;
+	case Embed;
 
 	/**
 	 * Map a PHP syntax token to its associated highlighting type
@@ -37,6 +38,7 @@ enum Highlight implements JsonSerializable {
 		return match($token) {
 			// Delimiters
 			T_ARRAY,
+			T_ATTRIBUTE,
 			T_CURLY_OPEN,
 			T_DOLLAR_OPEN_CURLY_BRACES,
 			T_OPEN_TAG,
@@ -66,6 +68,8 @@ enum Highlight implements JsonSerializable {
 
 			// 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,
@@ -185,6 +189,11 @@ enum Highlight implements JsonSerializable {
 			// Invalid syntax
 			T_BAD_CHARACTER => Highlight::Invalid,
 
+			// Comments
+			T_DOC_COMMENT => Highlight::MultiLineComment,
+
+			T_INLINE_HTML => Highlight::Embed,
+
 			default => Highlight::Normal,
 		};
 	}

src/config.php

@@ -3,15 +3,16 @@
 namespace Aviat\Kilo;
 
 use Aviat\Kilo\Enum\Color;
+use Aviat\Kilo\Enum\Color256;
 use Aviat\Kilo\Enum\Highlight;
 
 /**
  * Configure syntax highlighting colors
  *
  * @param Highlight $hl
- * @return Color
+ * @return Color | Color256 | int
  */
-function get_syntax_color(Highlight $hl): Color {
+function get_syntax_color(Highlight $hl): Color | Color256 | int {
 	return match ($hl)
 	{
 		Highlight::Comment => Color::FG_CYAN,

test.php

@@ -17,6 +17,7 @@ abstract class Foo implements Ifoo {
 	protected function doNothing(): void {}
 }
 
+#[Attribute]
 class Test {
 	public function __construct(public string $foo, public string $bar) {}
 }
@@ -30,9 +31,12 @@ class FooBar extends Foo implements Ifoo {
 		$cstr = print_r($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();