2 files changed, 12 insertions, 4 deletions
diff --git a/src/core/common/Utils.cpp b/src/core/common/Utils.cpp
index 219b437..a87ff6d 100644
--- a/src/core/common/Utils.cpp
+++ b/src/core/common/Utils.cpp
@@ -124,7 +124,8 @@ bool Utils::isUserDefinedToken(const std::string &token)
 	// Make sure the token meets is neither empty, nor starts or ends with an
 	// alphanumeric character
 	const size_t len = token.size();
-	if (len == 0 || isAlphanumeric(token[0]) || isAlphanumeric(token[len - 1])) {
+	if (len == 0 || isAlphanumeric(token[0]) ||
+	    isAlphanumeric(token[len - 1])) {
 		return false;
 	}
 
@@ -134,13 +135,19 @@ bool Utils::isUserDefinedToken(const std::string &token)
 		return false;
 	}
 
+	// Make sure the token does not contain any whitespaces.
+	for (char c : token) {
+		if (isWhitespace(c)) {
+			return false;
+		}
+	}
+
 	// Make sure the token contains other characters but { and }
-	for (char c: token) {
+	for (char c : token) {
 		if (c != '{' && c != '}') {
 			return true;
 		}
 	}
 	return false;
 }
-}
-
+}
+\ No newline at end of file
diff --git a/src/core/common/Utils.hpp b/src/core/common/Utils.hpp
index 25a4de5..d9e26da 100644
--- a/src/core/common/Utils.hpp
+++ b/src/core/common/Utils.hpp
@@ -117,6 +117,7 @@ public:
 	 *        <li>'%', '%{', '}%'</li>
 	 *      </ul>
 	 *   </li>
+	 *   <li>The token does not contain any whitespaces.</li>
 	 * </ul>
 	 */
 	static bool isUserDefinedToken(const std::string &token);