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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* YACC and LEX Definitions */
/* These may not be declared yet */
class Table_ident;
class sql_exchange;
class LEX_COLUMN;
// The following hack is neaded because mysql_yacc.cc does not define
// YYSTYPE before including this file
#ifdef MYSQL_YACC
#define LEX_YYSTYPE void *
#else
#include "lex_symbol.h"
#include "sql_yacc.h"
#define LEX_YYSTYPE YYSTYPE *
#endif
enum enum_sql_command {
SQLCOM_SELECT,SQLCOM_CREATE_TABLE,SQLCOM_CREATE_INDEX,SQLCOM_ALTER_TABLE,
SQLCOM_UPDATE,SQLCOM_INSERT,SQLCOM_INSERT_SELECT,SQLCOM_DELETE,
SQLCOM_DROP_TABLE,SQLCOM_DROP_INDEX,SQLCOM_SHOW_DATABASES,
SQLCOM_SHOW_TABLES,SQLCOM_SHOW_FIELDS,SQLCOM_SHOW_KEYS,
SQLCOM_LOAD,SQLCOM_SET_OPTION,SQLCOM_LOCK_TABLES,SQLCOM_UNLOCK_TABLES,
SQLCOM_GRANT, SQLCOM_CHANGE_DB, SQLCOM_CREATE_DB, SQLCOM_DROP_DB,
SQLCOM_REPAIR, SQLCOM_REPLACE, SQLCOM_REPLACE_SELECT, SQLCOM_SHOW_VARIABLES,
SQLCOM_SHOW_STATUS, SQLCOM_CREATE_FUNCTION, SQLCOM_DROP_FUNCTION,
SQLCOM_SHOW_PROCESSLIST,SQLCOM_REVOKE,SQLCOM_OPTIMIZE, SQLCOM_CHECK,
SQLCOM_FLUSH, SQLCOM_KILL, SQLCOM_SHOW_GRANTS, SQLCOM_ANALYZE,
SQLCOM_ROLLBACK, SQLCOM_COMMIT, SQLCOM_SLAVE_START, SQLCOM_SLAVE_STOP,
SQLCOM_BEGIN, SQLCOM_LOAD_MASTER_TABLE, SQLCOM_SHOW_CREATE,
SQLCOM_SHOW_MASTER_STAT, SQLCOM_SHOW_SLAVE_STAT, SQLCOM_CHANGE_MASTER
};
enum lex_states { STATE_START, STATE_CHAR, STATE_IDENT,
STATE_IDENT_SEP,
STATE_IDENT_START,
STATE_FOUND_IDENT,
STATE_SIGNED_NUMBER,
STATE_REAL,
STATE_CMP_OP,
STATE_LONG_CMP_OP,
STATE_STRING,
STATE_COMMENT,
STATE_END,
STATE_OPERATOR_OR_IDENT,
STATE_NUMBER_IDENT,
STATE_INT_OR_REAL,
STATE_REAL_OR_POINT,
STATE_BOOL,
STATE_EOL,
STATE_ESCAPE,
STATE_LONG_COMMENT,
STATE_END_LONG_COMMENT,
STATE_COLON,
STATE_SET_VAR,
STATE_USER_END,
STATE_HOSTNAME,
STATE_SKIP,
STATE_USER_VARIABLE_DELIMITER
};
typedef List<Item> List_item;
typedef struct st_lex_master_info
{
char* host, *user, *password,*log_file_name;
uint port, connect_retry;
ulonglong pos;
} LEX_MASTER_INFO;
/* The state of the lex parsing. This is saved in the THD struct */
typedef struct st_lex {
uint yylineno,yytoklen; /* Simulate lex */
LEX_YYSTYPE yylval;
uchar *ptr,*tok_start,*tok_end,*end_of_query;
ha_rows select_limit,offset_limit;
bool create_refs,drop_primary,drop_if_exists,local_file,
in_comment,ignore_space,verbose;
enum_sql_command sql_command;
enum lex_states next_state;
ulong options;
uint in_sum_expr,grant,grant_tot_col,which_columns, sort_default;
char *length,*dec,*change,*name;
String *wild;
sql_exchange *exchange;
thr_lock_type lock_option;
List<List_item> expr_list;
List<List_item> when_list;
List<List_item> many_values;
List<key_part_spec> col_list;
List<Alter_drop> drop_list;
List<Alter_column> alter_list;
List<String> interval_list,use_index,*use_index_ptr,
ignore_index, *ignore_index_ptr;
List<st_lex_user> users_list;
List<LEX_COLUMN> columns;
List<Key> key_list;
List<create_field> create_list;
List<Item> item_list,*insert_list,field_list,value_list;
List<Item_func_match> ftfunc_list;
SQL_LIST order_list,table_list,group_list,proc_list;
TYPELIB *interval;
create_field *last_field;
Item *where,*having,*default_value;
enum enum_duplicates duplicates;
ulong thread_id,type;
HA_CREATE_INFO create_info;
CONVERT *convert_set;
LEX_USER *grant_user;
char *db,*db1,*table1,*db2,*table2; /* For outer join using .. */
gptr yacc_yyss,yacc_yyvs;
THD *thd;
udf_func udf;
HA_CHECK_OPT check_opt; // check/repair options
LEX_MASTER_INFO mi; // used by CHANGE MASTER
} LEX;
void lex_init(void);
void lex_free(void);
LEX *lex_start(THD *thd, uchar *buf,uint length);
void lex_end(LEX *lex);
extern pthread_key(LEX*,THR_LEX);
extern LEX_STRING tmp_table_alias;
#define current_lex (¤t_thd->lex)
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