Reduce keywordPos lines

src/Botonomous/utility/MessageUtility.php

@@ -139,14 +139,10 @@ public function keywordPos(array $keywords, $message)
         }
 
         foreach ((new ArrayUtility())->sortArrayByLength($keywords) as $keyword) {
-            $result = preg_match_all("/\b{$keyword}\b/", $message, $matches, PREG_OFFSET_CAPTURE);
-
-            if ($result && !empty($matches[0])) {
-                foreach ($matches[0] as $match) {
-                    // check if the keyword does not overlap with one of the already found
-                    if ($this->isPositionTaken($found, $match[1]) === false) {
-                        $found[$keyword][] = $match[1];
-                    }
+            foreach ((new StringUtility())->findPositionInString($keyword, $message) as $position) {
+                // check if the keyword does not overlap with one of the already found
+                if ($this->isPositionTaken($found, $position) === false) {
+                    $found[$keyword][] = $position;
                 }
             }
         }

src/Botonomous/utility/StringUtility.php

@@ -51,6 +51,28 @@ public function findInString($toFind, $subject, $wordBoundary = true)
         return preg_match($pattern, $subject) ? true : false;
     }
 
+    /**
+     * @param      $toFind
+     * @param      $subject
+     * @param bool $wordBoundary
+     *
+     * @return mixed
+     */
+    public function findPositionInString($toFind, $subject, $wordBoundary = true)
+    {
+        $pattern = $wordBoundary === true ? "/\b{$toFind}\b/" : "/{$toFind}/";
+        $result = preg_match_all($pattern, $subject, $matches, PREG_OFFSET_CAPTURE);
+
+        $positions = [];
+        if ($result && !empty($matches[0])) {
+            foreach ($matches[0] as $match) {
+                $positions[] = $match[1];
+            }
+        }
+
+        return $positions;
+    }
+
     /**
      * Convert snake case to camel case e.g. admin_user becomes AdminUser.
      *