More work on user linking to existing defined system

app/Classes/Font.php

@@ -47,23 +47,23 @@ class Font
 	 */
 	private function chars(): Collection
 	{
-		static $chars = NULL;
+		static $chars = [];
 
-		if (is_null($chars) && $this->text) {
+		if ($this->text && empty($chars[$this->text])) {
 			// Trim any leading/trailing spaces
 			$text = trim(strtolower($this->text));
-			$chars = collect();
+			$chars[$this->text] = collect();
 
 			// Work out the characters we need
 			foreach (array_unique(str_split($text)) as $c) {
 				if (! $x=Arr::get(static::FONT,$c))
 					continue;
 
-				$chars->put($c,$x);
+				$chars[$this->text]->put($c,$x);
 			}
 		}
 
-		return $chars ?: collect();
+		return $chars[$this->text] ?: collect();
 	}
 
 	/**
@@ -94,7 +94,7 @@ class Font
 
 		// If the last character is a space, we'll reduce the width
 		$space = TRUE;
-		foreach ($chars->get($c) as $line => $x)
+		foreach ($chars->get($c) as $x)
 			if (array_pop($x) != 32) {
 				$space = FALSE;
 				break;