Do some basic parse transforms, to handle exit; without a status.

Author: d11wtq

lib/Boris/EvalWorker.php

@@ -95,7 +95,7 @@ public function start() {
 
       $this->_cancelled = false;
 
-      $__input = $this->_read($this->_socket);
+      $__input = $this->_transform($this->_read($this->_socket));
 
       if ($__input === null) {
         continue;
@@ -228,4 +228,20 @@ private function _select(&$read, &$except) {
     restore_error_handler();
     return $result;
   }
+
+  private function _transform($input) {
+    if ($input === null) {
+      return null;
+    }
+
+    $transforms = array(
+      'exit' => 'exit(0)'
+    );
+
+    foreach ($transforms as $from => $to) {
+      $input = preg_replace('/^\s*' . preg_quote($from, '/') . '\s*;?\s*$/', $to . ';', $input);
+    }
+
+    return $input;
+  }
 }