chat-parser: address review feedback from ngxson

Co-authored-by: Xuan Son Nguyen <[email protected]>

Author: ServeurpersoCom

common/chat-parser.cpp

@@ -171,6 +171,10 @@ void common_chat_msg_parser::consume_literal(const std::string & literal) {
 bool common_chat_msg_parser::try_parse_reasoning(const std::string & start_think, const std::string & end_think) {
     std::string pending_reasoning_prefix;
 
+    if (syntax_.reasoning_format == COMMON_REASONING_FORMAT_NONE) {
+        return false;
+    }
+
     auto set_reasoning_prefix = [&](size_t prefix_pos) {
         if (!syntax_.thinking_forced_open || syntax_.reasoning_in_content) {
             return;
@@ -206,10 +210,6 @@ bool common_chat_msg_parser::try_parse_reasoning(const std::string & start_think
         }
     };
 
-    if (syntax_.reasoning_format == COMMON_REASONING_FORMAT_NONE) {
-        return false;
-    }
-
     const size_t saved_pos = pos_;
     const size_t saved_content_size = result_.content.size();
     const size_t saved_reasoning_size = result_.reasoning_content.size();