Fix syntax highlighting dissapearing when code pushed to new line (for PHP)

src/Editor.php

@@ -37,6 +37,9 @@ class Editor {
 
 	public ?Syntax $syntax;
 
+	// Tokens for highlighting PHP
+	public array $tokens = [];
+
 	public static function new(): Editor
 	{
 		return new self();
@@ -129,7 +132,7 @@ class Editor {
 					// Pre-tokenize the file
 					if ($this->syntax->filetype === 'PHP')
 					{
-						$this->syntax->tokens = PHP::getFileTokens($this->filename);
+						$this->tokens = PHP::getFileTokens($this->filename);
 					}
 
 					// Update the syntax highlighting for all the rows of the file
@@ -192,12 +195,6 @@ class Editor {
 
 		$row = Row::new($this, $s, $at);
 
-		// Update row indicies
-		for ($i = $at + 1; $i < $this->numRows; $i++)
-		{
-			$this->rows[$i]->idx++;
-		}
-
 		if ($at === $this->numRows)
 		{
 			$this->rows[] = $row;
@@ -211,6 +208,14 @@ class Editor {
 			];
 		}
 
+		ksort($this->rows);
+
+		// Update row indexes
+		for ($i = 0; $i < $this->numRows; $i++)
+		{
+			$this->rows[$i]->idx = $i;
+		}
+
 		$this->rows[$at]->update();
 
 		$this->dirty++;
@@ -285,7 +290,7 @@ class Editor {
 			$row->chars = $newChars;
 
 			// Add a new row, with the contents from the cursor to the end of the line
-			$this->insertRow($this->cursorY + 1, substr($chars, $this->cursorX), FALSE);
+			$this->insertRow($this->cursorY + 1, substr($chars, $this->cursorX));
 		}
 
 		$this->cursorY++;
@@ -332,11 +337,7 @@ class Editor {
 
 	protected function rowsToString(): string
 	{
-		$lines = [];
-		foreach ($this->rows as $row)
-		{
-			$lines[] = (string)$row;
-		}
+		$lines = array_map(fn (Row $row) => (string)$row, $this->rows);
 
 		return implode('', $lines);
 	}
@@ -930,10 +931,10 @@ class Editor {
 
 	private function refreshPHPSyntax(): void
 	{
-		$this->syntax->tokens = PHP::getTokens($this->rowsToString());
+		$this->tokens = PHP::getTokens($this->rowsToString());
 		for ($i = 0; $i < $this->numRows; $i++)
 		{
-			$this->rows[$i]->updateSyntax();
+			$this->rows[$i]->update();
 		}
 	}
 }

src/Row.php

@@ -22,6 +22,8 @@ class Row {
 	private Editor $parent;
 	private bool $hlOpenComment = FALSE;
 
+	private const T_RAW = -1;
+
 	private array $phpTokenHighlightMap = [
 		// Delimiters
 		T_ARRAY => Highlight::DELIMITER,
@@ -229,6 +231,7 @@ class Row {
 			'rsize' => $this->rsize,
 			'chars' => $this->chars,
 			'render' => $this->render,
+			'hl' => $this->hl,
 			'hlOpenComment' => $this->hlOpenComment,
 		];
 	}
@@ -446,19 +449,17 @@ class Row {
 	{
 		$rowNum = $this->idx + 1;
 
-		$hasTokens = isset($this->parent->syntax->tokens);
-		$hasRow = $hasTokens && array_key_exists($rowNum, $this->parent->syntax->tokens);
+		$hasRowTokens = array_key_exists($rowNum, $this->parent->tokens);
 
 		if ( ! (
-			$hasTokens &&
-			$hasRow &&
+			$hasRowTokens &&
 			$this->idx < $this->parent->numRows
 		))
 		{
 			return;
 		}
 
-		$tokens = $this->parent->syntax->tokens[$rowNum];
+		$tokens = $this->parent->tokens[$rowNum];
 
 		$inComment = ($this->idx > 0 && $this->parent->rows[$this->idx - 1]->hlOpenComment);
 
@@ -567,7 +568,7 @@ class Row {
 			}
 
 			// Highlight raw characters
-			if (($token['typeName'] === 'RAW') && array_key_exists(trim($token['char']), $this->phpCharacterHighlightMap))
+			if (($token['type'] === self::T_RAW) && array_key_exists(trim($token['char']), $this->phpCharacterHighlightMap))
 			{
 				$hl = $this->phpCharacterHighlightMap[trim($token['char'])];
 				array_replace_range($this->hl, $charStart, $charLen, $hl);

src/Tokens/PHP.php

@@ -23,7 +23,7 @@ class PHP {
 
 		$this->code = $code;
 		$this->rawLines = $lines;
-		$this->tokens = array_fill(1, count($lines) - 1, []);
+		$this->tokens = array_fill(1, count($lines), []);
 	}
 
 	/**

test.php

@@ -81,3 +81,4 @@ TEMPLATE;
 <h1><?= $_SERVER['HTTP_HOST'] ?></h1>
 </body>
 </html>
+<?php exit(); ?>