/* 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 needed 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_TRUNCATE, SQLCOM_DROP_TABLE, SQLCOM_DROP_INDEX, SQLCOM_SHOW_DATABASES, SQLCOM_SHOW_TABLES, SQLCOM_SHOW_FIELDS, SQLCOM_SHOW_KEYS, SQLCOM_SHOW_VARIABLES, SQLCOM_SHOW_LOGS, SQLCOM_SHOW_STATUS, SQLCOM_SHOW_PROCESSLIST, SQLCOM_SHOW_MASTER_STAT, SQLCOM_SHOW_SLAVE_STAT, SQLCOM_SHOW_GRANTS, SQLCOM_SHOW_CREATE, 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_CREATE_FUNCTION, SQLCOM_DROP_FUNCTION, SQLCOM_REVOKE,SQLCOM_OPTIMIZE, SQLCOM_CHECK, SQLCOM_FLUSH, SQLCOM_KILL, SQLCOM_ANALYZE, SQLCOM_ROLLBACK, SQLCOM_COMMIT, SQLCOM_SLAVE_START, SQLCOM_SLAVE_STOP, SQLCOM_BEGIN, SQLCOM_LOAD_MASTER_TABLE, SQLCOM_CHANGE_MASTER, SQLCOM_RENAME_TABLE, SQLCOM_BACKUP_TABLE, SQLCOM_RESTORE_TABLE, SQLCOM_RESET, SQLCOM_PURGE, SQLCOM_SHOW_BINLOGS, SQLCOM_SHOW_OPEN_TABLES, SQLCOM_LOAD_MASTER_DATA, SQLCOM_HA_OPEN, SQLCOM_HA_CLOSE, SQLCOM_HA_READ, SQLCOM_SHOW_SLAVE_HOSTS, SQLCOM_MULTI_DELETE, SQLCOM_SHOW_BINLOG_EVENTS, SQLCOM_SHOW_NEW_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_HEX_NUMBER, 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 List_item; typedef struct st_lex_master_info { char* host, *user, *password,*log_file_name; uint port, connect_retry; ulong last_log_seq; ulonglong pos; ulong server_id; } LEX_MASTER_INFO; enum sub_select_type {UNSPECIFIED_TYPE,UNION_TYPE, INTERSECT_TYPE, EXCEPT_TYPE, NOT_A_SELECT}; /* The state of the lex parsing for selects */ typedef struct st_select_lex { enum sub_select_type linkage; char *db,*db1,*table1,*db2,*table2; /* For outer join using .. */ Item *where,*having; ha_rows select_limit,offset_limit; ulong options; List expr_list; List when_list; SQL_LIST order_list,table_list,group_list; List item_list; List interval_list,use_index, *use_index_ptr, ignore_index, *ignore_index_ptr; List ftfunc_list; uint in_sum_expr, sort_default; bool create_refs, braces; st_select_lex *next; } SELECT_LEX; class Set_option :public Sql_alloc { public: const char *name; Item *item; uint name_length; bool type; /* 1 if global */ Set_option(bool par_type, const char *par_name, uint length, Item *par_item) :name(par_name), item(par_item), name_length(length), type(par_type) {} }; /* 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; SELECT_LEX select_lex, *select; uchar *ptr,*tok_start,*tok_end,*end_of_query; char *length,*dec,*change,*name; char *backup_dir; /* For RESTORE/BACKUP */ char* to_log; /* For PURGE MASTER LOGS TO */ char* x509_subject,*x509_issuer,*ssl_cipher; enum SSL_type ssl_type; /* defined in violite.h */ String *wild; sql_exchange *exchange; List col_list; List drop_list; List alter_list; List interval_list; List users_list; List columns; List key_list; List create_list; List *insert_list,field_list,value_list; List many_values; List option_list; SQL_LIST proc_list, auxilliary_table_list; TYPELIB *interval; create_field *last_field; Item *default_value; CONVERT *convert_set; LEX_USER *grant_user; gptr yacc_yyss,yacc_yyvs; THD *thd; udf_func udf; HA_CHECK_OPT check_opt; // check/repair options HA_CREATE_INFO create_info; LEX_MASTER_INFO mi; // used by CHANGE MASTER ulong thread_id,type; enum_sql_command sql_command; enum lex_states next_state; enum enum_duplicates duplicates; enum enum_tx_isolation tx_isolation; enum enum_ha_read_modes ha_read_mode; enum ha_rkey_function ha_rkey_mode; enum enum_enable_or_disable alter_keys_onoff; uint grant,grant_tot_col,which_columns, union_option; thr_lock_type lock_option; bool drop_primary,drop_if_exists,local_file; bool in_comment,ignore_space,verbose,simple_alter, option_type; } 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)