better templating

Lib/Formatter/Html.php

@@ -97,12 +97,14 @@ class Html extends Formatter {
             );
         }
 
-        $html = file_get_contents('template.html');
+        $panel = static::template($context, 'panel');
+        echo static::template(array('title' => $context['title'], 'content' => $panel));
+    }
 
-        foreach($context as $k => $v) {
-            $html = str_replace("{{ $k }}", $v, $html);
-        }
+    public static function template(array $context = array(), $template = 'layout') {
+        $html = file_get_contents(sprintf('templates/%s.html', $template));
 
-        echo $html;
+        $patterns = array_map(function($p) { return "{{ $p }}"; }, array_keys($context));
+        return str_replace($patterns, array_values($context), $html);
     }
 }

templates/layout.html

@@ -30,14 +30,7 @@
     </nav>
 
     <div class="container-fluid">
-        <div class="panel panel-{{ status }}">
-            <div class="panel-heading">
-                <h3 class="panel-title">{{ title }}</h3>
-            </div>
-            <div class="panel-body">
-                {{ content }}
-            </div>
-        </div>
+        {{ content }}
     </div>
 
     <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>

templates/panel.html

@@ -0,0 +1,8 @@
+<div class="panel panel-{{ status }}">
+    <div class="panel-heading">
+        <h3 class="panel-title">{{ title }}</h3>
+    </div>
+    <div class="panel-body">
+        {{ content }}
+    </div>
+</div>