/* Copyright 2006 Garrett Rooney.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef DDL_COMMON_H
#define DDL_COMMON_H

#include "etl_variables.h"
#include "etl_resolver.h"
#include "lexer.h"

typedef struct etl_ddl_parser_t etl_ddl_parser_t;

/* An entry in a linked list, used for storing state while parsing DDL
 * files. */
typedef struct etl_list_entry_t {
  char *key;
  etl_variable_t *value;
  struct etl_list_entry_t *next;
} etl_list_entry_t;

/* The state we carry around while parsing the DDL. */
typedef struct {
  etl_list_entry_t *spare_entries;
  etl_resolver_t *resolver;
  etl_error_t *err;
  etl_hash_t *vars;
} etl_ddl_parser_state_t;

void *etl_ddl_parser_alloc(void *(*alloc_func) (size_t));

void etl_ddl_parser_parse(void *parser,
                          int token,
                          etl_token_t *data,
                          etl_ddl_parser_state_t *state);

void etl_ddl_parser_free(void *parser, void (*free_func)(void *));

/* Force Lemon to produce the kind of symbols I want... */
#define etl_ddl_parser_parseAlloc etl_ddl_parser_alloc
#define etl_ddl_parser_parseFree etl_ddl_parser_free
#define etl_ddl_parser_parseTokenName etl_ddl_parser_token_name
#define etl_ddl_parser_parseTrace etl_ddl_parser_trace

#endif /* DDL_COMMON_H */