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