matched = false
					}
				}

				if matched {
					return nil
				}
			}
		}
	}

	var (
		name     string
		idx      = strings.Index(str, ",")
		settings = ParseTagSetting(str, ",")
	)

	// optimize match english letters and midline
	// The following code is basically called in for.
	// In order to avoid the performance problems caused by repeated compilation of regular expressions,