/*
 * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
 *
 * This program is free software: you can use, redistribute, and/or modify
 * it under the terms of the GNU Affero General Public License, version 3
 * or later ("AGPL"), as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _TD_SIM_PARSE_H_
#define _TD_SIM_PARSE_H_

#include "simInt.h"

#define MAX_NUM_CMD       64
#define MAX_NUM_LABLES    100
#define MAX_LABEL_LEN     40
#define MAX_NUM_BLOCK     100
#define MAX_NUM_JUMP      100
#define MAX_LINE_LEN      3000
#define MAX_CMD_LINES     2048
#define MAX_OPTION_BUFFER 64000

enum {
  BLOCK_IF,
  BLOCK_WHILE,
  BLOCK_SWITCH,
};

/* label stack */
typedef struct {
  char    top;                                  /* number of labels */
  int16_t pos[MAX_NUM_LABLES];                  /* the position of the label */
  char    label[MAX_NUM_LABLES][MAX_LABEL_LEN]; /* name of the label */
} SLabel;

/* block definition */
typedef struct {
  char     top;                 /* the number of blocks stacked */
  char     type[MAX_NUM_BLOCK]; /* the block type */
  int16_t *pos[MAX_NUM_BLOCK];  /* position of the jump for if/elif/case */
  int16_t  back[MAX_NUM_BLOCK]; /* go back, endw and continue */
  char     numJump[MAX_NUM_BLOCK];
  int16_t *jump[MAX_NUM_BLOCK][MAX_NUM_JUMP]; /* break or elif */
  char     sexp[MAX_NUM_BLOCK][40];           /*switch expression */
  char     sexpLen[MAX_NUM_BLOCK];            /*switch expression length */
} SBlock;

bool simParseExpression(char *token, int32_t lineNum);

#endif /*_TD_SIM_PARSE_H_*/