Added a property to tweak the design of code listings

Author: javiereguiluz

src/Renderers/CodeNodeRenderer.php

@@ -83,6 +83,10 @@ public function render(): string
                 'languageMapping' => self::LANGUAGES_MAPPING[$language] ?? $language,
                 'code' => $code,
                 'lineNumbers' => rtrim($lineNumbers),
+                // this is the number of digits of the codeblock lines-of-code
+                // e.g. LOC = 5, digits = 1; LOC = 18, digits = 2
+                // this is useful to tweak the code listings according to their length
+                'numLocDigits' => (int) floor(log10(\count($lines))) + 1,
             ]
         );
     }

src/Templates/default/html/code.html.twig

@@ -1,4 +1,4 @@
-<div class="literal-block">
+<div class="literal-block loc-{{ numLocDigits }}">
     <div class="highlight-{{ language }}">
         <table class="highlighttable">
             <tr>