private def decimalNumber()

in rsc/src/main/scala/rsc/scan/scala/Scanner.scala [144:204]
61 lines of code
21 McCabe index (conditional complexity)

  private def decimalNumber(): Unit = {
    while (isDecimalDigit(ch)) {
      nextChar()
    }
    val default = {
      if (ch == '.' && isDecimalDigit(ch1)) {
        nextChar()
        while (isDecimalDigit(ch)) {
          nextChar()
        }
        LITDOUBLE
      } else if (ch == 'e' || ch == 'E') {
        LITDOUBLE
      } else {
        LITINT
      }
    }
    if (ch == 'e' || ch == 'E') {
      if (isDecimalDigit(ch1)) {
        nextChar()
        while (isDecimalDigit(ch)) {
          nextChar()
        }
      } else if ((ch1 == '+' || ch1 == '-') && isDecimalDigit(ch2)) {
        nextChar()
        nextChar()
        while (isDecimalDigit(ch)) {
          nextChar()
        }
      }
    }
    val parsee = lexeme
    val token = {
      ch match {
        case 'l' | 'L' =>
          if (default == LITINT) {
            nextChar()
            LITLONG
          } else {
            nextChar()
            val message = reportOffset(offset, IllegalNumber)
            emit(ERROR, message.str)
            return
          }
        case 'f' | 'F' =>
          nextChar()
          LITFLOAT
        case 'd' | 'D' =>
          nextChar()
          LITDOUBLE
        case _ =>
          default
      }
    }
    if (isAlphanumericIdPart(ch)) {
      val message = reportOffset(offset, IllegalNumber)
      emit(ERROR, message.str)
      return
    }
    emit(token, parsee)
  }