private void parse()

in odps-console-basic/src/main/java/com/aliyun/openservices/odps/console/utils/CommandSplitter.java [139:219]
78 lines of code
24 McCabe index (conditional complexity)

  private void parse() throws ODPSConsoleException {
    for(int i = 0; i < input.length(); i++) {
      char c = input.charAt(i);
      switch(state) {
        case START:
          switch(c) {
            case ' ':
            case '\t':
            case '\f':
            case '\n':
            case '\r':
              commandBuffer.append(c);
              break;
            case '#':
              state = COMMENT;
              break;
            default:
              normalSwitch(c);
          }
          break;
        case PRE_COMMENT:
          if (c == '-') {
            state = COMMENT;
            flushTokenBuffer();
          } else {
            state = NORMAL;
            commandBuffer.append('-');
            tokenBuffer.append('-');
            i--;
          }
          break;
        case COMMENT:
          if (c == '\n' || c == '\r') {
            commandBuffer.append(c);
            state = END;
          }
          break;
        case END:
          if (c != '\n' && c != '\r') {
            state = START;
            i--;
          } else {
            commandBuffer.append(c);
          }
          break;
        case QUOTE:
          tokenBuffer.append(c);
          commandBuffer.append(c);
          if (c == quoteType) {
            state = NORMAL;
            flushTokenBuffer();
          } else if (c == '\\') {
            state = ESCAPE;
          }
          break;
        case ESCAPE:
          tokenBuffer.append(c);
          commandBuffer.append(c);
          state = QUOTE;
          break;
        case NORMAL:
          normalSwitch(c);
          break;
        default:
          throw new IllegalArgumentException(
              String.format("impossible thing happened. pos=%s, char='%s'", i, c));
      }
    }

    switch(state) {
      case QUOTE:
      case ESCAPE:
        throw new ODPSConsoleException(ODPSConsoleConstants.BAD_COMMAND + " string not closed");
      default:
        // in case last token/command without ";"
        flushTokenBuffer();
        flushCommandBuffer();
    }

    parsed = true;
  }