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/******************************************************
SQL parser: input file for the GNU Bison parser generator
(c) 1997 Innobase Oy
Created 12/14/1997 Heikki Tuuri
*******************************************************/
%{
/* The value of the semantic attribute is a pointer to a query tree node
que_node_t */
#define YYSTYPE que_node_t*
#define alloca mem_alloc
#include "univ.i"
#include <math.h>
#include "pars0pars.h"
#include "mem0mem.h"
#include "que0types.h"
#include "que0que.h"
#include "row0sel.h"
/* #define __STDC__ */
int
yylex(void);
%}
%token PARS_INT_LIT
%token PARS_FLOAT_LIT
%token PARS_STR_LIT
%token PARS_NULL_LIT
%token PARS_ID_TOKEN
%token PARS_AND_TOKEN
%token PARS_OR_TOKEN
%token PARS_NOT_TOKEN
%token PARS_GE_TOKEN
%token PARS_LE_TOKEN
%token PARS_NE_TOKEN
%token PARS_PROCEDURE_TOKEN
%token PARS_IN_TOKEN
%token PARS_OUT_TOKEN
%token PARS_INT_TOKEN
%token PARS_INTEGER_TOKEN
%token PARS_FLOAT_TOKEN
%token PARS_CHAR_TOKEN
%token PARS_IS_TOKEN
%token PARS_BEGIN_TOKEN
%token PARS_END_TOKEN
%token PARS_IF_TOKEN
%token PARS_THEN_TOKEN
%token PARS_ELSE_TOKEN
%token PARS_ELSIF_TOKEN
%token PARS_LOOP_TOKEN
%token PARS_WHILE_TOKEN
%token PARS_RETURN_TOKEN
%token PARS_SELECT_TOKEN
%token PARS_SUM_TOKEN
%token PARS_COUNT_TOKEN
%token PARS_DISTINCT_TOKEN
%token PARS_FROM_TOKEN
%token PARS_WHERE_TOKEN
%token PARS_FOR_TOKEN
%token PARS_DDOT_TOKEN
%token PARS_CONSISTENT_TOKEN
%token PARS_READ_TOKEN
%token PARS_ORDER_TOKEN
%token PARS_BY_TOKEN
%token PARS_ASC_TOKEN
%token PARS_DESC_TOKEN
%token PARS_INSERT_TOKEN
%token PARS_INTO_TOKEN
%token PARS_VALUES_TOKEN
%token PARS_UPDATE_TOKEN
%token PARS_SET_TOKEN
%token PARS_DELETE_TOKEN
%token PARS_CURRENT_TOKEN
%token PARS_OF_TOKEN
%token PARS_CREATE_TOKEN
%token PARS_TABLE_TOKEN
%token PARS_INDEX_TOKEN
%token PARS_UNIQUE_TOKEN
%token PARS_CLUSTERED_TOKEN
%token PARS_DOES_NOT_FIT_IN_MEM_TOKEN
%token PARS_ON_TOKEN
%token PARS_ASSIGN_TOKEN
%token PARS_DECLARE_TOKEN
%token PARS_CURSOR_TOKEN
%token PARS_SQL_TOKEN
%token PARS_OPEN_TOKEN
%token PARS_FETCH_TOKEN
%token PARS_CLOSE_TOKEN
%token PARS_NOTFOUND_TOKEN
%token PARS_TO_CHAR_TOKEN
%token PARS_TO_NUMBER_TOKEN
%token PARS_TO_BINARY_TOKEN
%token PARS_BINARY_TO_NUMBER_TOKEN
%token PARS_SUBSTR_TOKEN
%token PARS_REPLSTR_TOKEN
%token PARS_CONCAT_TOKEN
%token PARS_INSTR_TOKEN
%token PARS_LENGTH_TOKEN
%token PARS_SYSDATE_TOKEN
%token PARS_PRINTF_TOKEN
%token PARS_ASSERT_TOKEN
%token PARS_RND_TOKEN
%token PARS_RND_STR_TOKEN
%token PARS_ROW_PRINTF_TOKEN
%token PARS_COMMIT_TOKEN
%token PARS_ROLLBACK_TOKEN
%token PARS_WORK_TOKEN
%left PARS_AND_TOKEN PARS_OR_TOKEN
%left PARS_NOT_TOKEN
%left '=' '<' '>' PARS_GE_TOKEN PARS_LE_TOKEN
%left '-' '+'
%left '*' '/'
%left NEG /* negation--unary minus */
%left '%'
/* Grammar follows */
%%
statement:
procedure_definition ';'
| stored_procedure_call
| predefined_procedure_call ';'
| while_statement ';'
| for_statement ';'
| if_statement ';'
| return_statement ';'
| assignment_statement ';'
| select_statement ';'
| insert_statement ';'
| row_printf_statement ';'
| delete_statement_searched ';'
| delete_statement_positioned ';'
| update_statement_searched ';'
| update_statement_positioned ';'
| open_cursor_statement ';'
| fetch_statement ';'
| close_cursor_statement ';'
| commit_statement ';'
| rollback_statement ';'
| create_table ';'
| create_index ';'
;
statement_list:
statement { $$ = que_node_list_add_last(NULL, $1); }
| statement_list statement
{ $$ = que_node_list_add_last($1, $2); }
;
exp:
PARS_ID_TOKEN { $$ = $1;}
| function_name '(' exp_list ')'
{ $$ = pars_func($1, $3); }
| PARS_INT_LIT { $$ = $1;}
| PARS_FLOAT_LIT { $$ = $1;}
| PARS_STR_LIT { $$ = $1;}
| PARS_NULL_LIT { $$ = $1;}
| PARS_SQL_TOKEN { $$ = $1;}
| exp '+' exp { $$ = pars_op('+', $1, $3); }
| exp '-' exp { $$ = pars_op('-', $1, $3); }
| exp '*' exp { $$ = pars_op('*', $1, $3); }
| exp '/' exp { $$ = pars_op('/', $1, $3); }
| '-' exp %prec NEG { $$ = pars_op('-', $2, NULL); }
| '(' exp ')' { $$ = $2; }
| exp '=' exp { $$ = pars_op('=', $1, $3); }
| exp '<' exp { $$ = pars_op('<', $1, $3); }
| exp '>' exp { $$ = pars_op('>', $1, $3); }
| exp PARS_GE_TOKEN exp { $$ = pars_op(PARS_GE_TOKEN, $1, $3); }
| exp PARS_LE_TOKEN exp { $$ = pars_op(PARS_LE_TOKEN, $1, $3); }
| exp PARS_NE_TOKEN exp { $$ = pars_op(PARS_NE_TOKEN, $1, $3); }
| exp PARS_AND_TOKEN exp{ $$ = pars_op(PARS_AND_TOKEN, $1, $3); }
| exp PARS_OR_TOKEN exp { $$ = pars_op(PARS_OR_TOKEN, $1, $3); }
| PARS_NOT_TOKEN exp { $$ = pars_op(PARS_NOT_TOKEN, $2, NULL); }
| PARS_ID_TOKEN '%' PARS_NOTFOUND_TOKEN
{ $$ = pars_op(PARS_NOTFOUND_TOKEN, $1, NULL); }
| PARS_SQL_TOKEN '%' PARS_NOTFOUND_TOKEN
{ $$ = pars_op(PARS_NOTFOUND_TOKEN, $1, NULL); }
;
function_name:
PARS_TO_CHAR_TOKEN { $$ = &pars_to_char_token; }
| PARS_TO_NUMBER_TOKEN { $$ = &pars_to_number_token; }
| PARS_TO_BINARY_TOKEN { $$ = &pars_to_binary_token; }
| PARS_BINARY_TO_NUMBER_TOKEN
{ $$ = &pars_binary_to_number_token; }
| PARS_SUBSTR_TOKEN { $$ = &pars_substr_token; }
| PARS_CONCAT_TOKEN { $$ = &pars_concat_token; }
| PARS_INSTR_TOKEN { $$ = &pars_instr_token; }
| PARS_LENGTH_TOKEN { $$ = &pars_length_token; }
| PARS_SYSDATE_TOKEN { $$ = &pars_sysdate_token; }
| PARS_RND_TOKEN { $$ = &pars_rnd_token; }
| PARS_RND_STR_TOKEN { $$ = &pars_rnd_str_token; }
;
question_mark_list:
/* Nothing */
| '?'
| question_mark_list ',' '?'
;
stored_procedure_call:
'{' PARS_ID_TOKEN '(' question_mark_list ')' '}'
{ $$ = pars_stored_procedure_call($2); }
;
predefined_procedure_call:
predefined_procedure_name '(' exp_list ')'
{ $$ = pars_procedure_call($1, $3); }
;
predefined_procedure_name:
PARS_REPLSTR_TOKEN { $$ = &pars_replstr_token; }
| PARS_PRINTF_TOKEN { $$ = &pars_printf_token; }
| PARS_ASSERT_TOKEN { $$ = &pars_assert_token; }
;
table_list:
PARS_ID_TOKEN { $$ = que_node_list_add_last(NULL, $1); }
| table_list ',' PARS_ID_TOKEN
{ $$ = que_node_list_add_last($1, $3); }
;
variable_list:
/* Nothing */ { $$ = NULL; }
| PARS_ID_TOKEN { $$ = que_node_list_add_last(NULL, $1); }
| variable_list ',' PARS_ID_TOKEN
{ $$ = que_node_list_add_last($1, $3); }
;
exp_list:
/* Nothing */ { $$ = NULL; }
| exp { $$ = que_node_list_add_last(NULL, $1);}
| exp_list ',' exp { $$ = que_node_list_add_last($1, $3); }
;
select_item:
exp { $$ = $1; }
| PARS_COUNT_TOKEN '(' '*' ')'
{ $$ = pars_func(&pars_count_token,
que_node_list_add_last(NULL,
sym_tab_add_int_lit(
pars_sym_tab_global, 1))); }
| PARS_COUNT_TOKEN '(' PARS_DISTINCT_TOKEN PARS_ID_TOKEN ')'
{ $$ = pars_func(&pars_count_token,
que_node_list_add_last(NULL,
pars_func(&pars_distinct_token,
que_node_list_add_last(
NULL, $4)))); }
| PARS_SUM_TOKEN '(' exp ')'
{ $$ = pars_func(&pars_sum_token,
que_node_list_add_last(NULL,
$3)); }
;
select_item_list:
/* Nothing */ { $$ = NULL; }
| select_item { $$ = que_node_list_add_last(NULL, $1); }
| select_item_list ',' select_item
{ $$ = que_node_list_add_last($1, $3); }
;
select_list:
'*' { $$ = pars_select_list(&pars_star_denoter,
NULL); }
| select_item_list PARS_INTO_TOKEN variable_list
{ $$ = pars_select_list($1, $3); }
| select_item_list { $$ = pars_select_list($1, NULL); }
;
search_condition:
/* Nothing */ { $$ = NULL; }
| PARS_WHERE_TOKEN exp { $$ = $2; }
;
for_update_clause:
/* Nothing */ { $$ = NULL; }
| PARS_FOR_TOKEN PARS_UPDATE_TOKEN
{ $$ = &pars_update_token; }
;
consistent_read_clause:
/* Nothing */ { $$ = NULL; }
| PARS_CONSISTENT_TOKEN PARS_READ_TOKEN
{ $$ = &pars_consistent_token; }
;
order_direction:
/* Nothing */ { $$ = &pars_asc_token; }
| PARS_ASC_TOKEN { $$ = &pars_asc_token; }
| PARS_DESC_TOKEN { $$ = &pars_desc_token; }
;
order_by_clause:
/* Nothing */ { $$ = NULL; }
| PARS_ORDER_TOKEN PARS_BY_TOKEN PARS_ID_TOKEN order_direction
{ $$ = pars_order_by($3, $4); }
;
select_statement:
PARS_SELECT_TOKEN select_list
PARS_FROM_TOKEN table_list
search_condition
for_update_clause
consistent_read_clause
order_by_clause { $$ = pars_select_statement($2, $4, $5,
$6, $7, $8); }
;
insert_statement_start:
PARS_INSERT_TOKEN PARS_INTO_TOKEN
PARS_ID_TOKEN { $$ = $3; }
;
insert_statement:
insert_statement_start PARS_VALUES_TOKEN '(' exp_list ')'
{ $$ = pars_insert_statement($1, $4, NULL); }
| insert_statement_start select_statement
{ $$ = pars_insert_statement($1, NULL, $2); }
;
column_assignment:
PARS_ID_TOKEN '=' exp { $$ = pars_column_assignment($1, $3); }
;
column_assignment_list:
column_assignment { $$ = que_node_list_add_last(NULL, $1); }
| column_assignment_list ',' column_assignment
{ $$ = que_node_list_add_last($1, $3); }
;
cursor_positioned:
PARS_WHERE_TOKEN
PARS_CURRENT_TOKEN PARS_OF_TOKEN
PARS_ID_TOKEN { $$ = $4; }
;
update_statement_start:
PARS_UPDATE_TOKEN PARS_ID_TOKEN
PARS_SET_TOKEN
column_assignment_list { $$ = pars_update_statement_start(FALSE,
$2, $4); }
;
update_statement_searched:
update_statement_start
search_condition { $$ = pars_update_statement($1, NULL, $2); }
;
update_statement_positioned:
update_statement_start
cursor_positioned { $$ = pars_update_statement($1, $2, NULL); }
;
delete_statement_start:
PARS_DELETE_TOKEN PARS_FROM_TOKEN
PARS_ID_TOKEN { $$ = pars_update_statement_start(TRUE,
$3, NULL); }
;
delete_statement_searched:
delete_statement_start
search_condition { $$ = pars_update_statement($1, NULL, $2); }
;
delete_statement_positioned:
delete_statement_start
cursor_positioned { $$ = pars_update_statement($1, $2, NULL); }
;
row_printf_statement:
PARS_ROW_PRINTF_TOKEN select_statement
{ $$ = pars_row_printf_statement($2); }
;
assignment_statement:
PARS_ID_TOKEN PARS_ASSIGN_TOKEN exp
{ $$ = pars_assignment_statement($1, $3); }
;
elsif_element:
PARS_ELSIF_TOKEN
exp PARS_THEN_TOKEN statement_list
{ $$ = pars_elsif_element($2, $4); }
;
elsif_list:
elsif_element { $$ = que_node_list_add_last(NULL, $1); }
| elsif_list elsif_element
{ $$ = que_node_list_add_last($1, $2); }
;
else_part:
/* Nothing */ { $$ = NULL; }
| PARS_ELSE_TOKEN statement_list
{ $$ = $2; }
| elsif_list { $$ = $1; }
;
if_statement:
PARS_IF_TOKEN exp PARS_THEN_TOKEN statement_list
else_part
PARS_END_TOKEN PARS_IF_TOKEN
{ $$ = pars_if_statement($2, $4, $5); }
;
while_statement:
PARS_WHILE_TOKEN exp PARS_LOOP_TOKEN statement_list
PARS_END_TOKEN PARS_LOOP_TOKEN
{ $$ = pars_while_statement($2, $4); }
;
for_statement:
PARS_FOR_TOKEN PARS_ID_TOKEN PARS_IN_TOKEN
exp PARS_DDOT_TOKEN exp
PARS_LOOP_TOKEN statement_list
PARS_END_TOKEN PARS_LOOP_TOKEN
{ $$ = pars_for_statement($2, $4, $6, $8); }
;
return_statement:
PARS_RETURN_TOKEN { $$ = pars_return_statement(); }
;
open_cursor_statement:
PARS_OPEN_TOKEN PARS_ID_TOKEN
{ $$ = pars_open_statement(
ROW_SEL_OPEN_CURSOR, $2); }
;
close_cursor_statement:
PARS_CLOSE_TOKEN PARS_ID_TOKEN
{ $$ = pars_open_statement(
ROW_SEL_CLOSE_CURSOR, $2); }
;
fetch_statement:
PARS_FETCH_TOKEN PARS_ID_TOKEN PARS_INTO_TOKEN variable_list
{ $$ = pars_fetch_statement($2, $4); }
;
column_def:
PARS_ID_TOKEN type_name { $$ = pars_column_def($1, $2); }
;
column_def_list:
column_def { $$ = que_node_list_add_last(NULL, $1); }
| column_def_list ',' column_def
{ $$ = que_node_list_add_last($1, $3); }
;
not_fit_in_memory:
/* Nothing */ { $$ = NULL; }
| PARS_DOES_NOT_FIT_IN_MEM_TOKEN
{ $$ = &pars_int_token;
/* pass any non-NULL pointer */ }
;
create_table:
PARS_CREATE_TOKEN PARS_TABLE_TOKEN
PARS_ID_TOKEN '(' column_def_list ')'
not_fit_in_memory { $$ = pars_create_table($3, $5, $7); }
;
column_list:
PARS_ID_TOKEN { $$ = que_node_list_add_last(NULL, $1); }
| column_list ',' PARS_ID_TOKEN
{ $$ = que_node_list_add_last($1, $3); }
;
unique_def:
/* Nothing */ { $$ = NULL; }
| PARS_UNIQUE_TOKEN { $$ = &pars_unique_token; }
;
clustered_def:
/* Nothing */ { $$ = NULL; }
| PARS_CLUSTERED_TOKEN { $$ = &pars_clustered_token; }
;
create_index:
PARS_CREATE_TOKEN unique_def
clustered_def
PARS_INDEX_TOKEN
PARS_ID_TOKEN PARS_ON_TOKEN PARS_ID_TOKEN
'(' column_list ')' { $$ = pars_create_index($2, $3, $5, $7, $9); }
;
commit_statement:
PARS_COMMIT_TOKEN PARS_WORK_TOKEN
{ $$ = pars_commit_statement(); }
;
rollback_statement:
PARS_ROLLBACK_TOKEN PARS_WORK_TOKEN
{ $$ = pars_rollback_statement(); }
;
type_name:
PARS_INT_TOKEN { $$ = &pars_int_token; }
| PARS_CHAR_TOKEN { $$ = &pars_char_token; }
;
parameter_declaration:
PARS_ID_TOKEN PARS_IN_TOKEN type_name
{ $$ = pars_parameter_declaration($1,
PARS_INPUT, $3); }
| PARS_ID_TOKEN PARS_OUT_TOKEN type_name
{ $$ = pars_parameter_declaration($1,
PARS_OUTPUT, $3); }
;
parameter_declaration_list:
/* Nothing */ { $$ = NULL; }
| parameter_declaration { $$ = que_node_list_add_last(NULL, $1); }
| parameter_declaration_list ',' parameter_declaration
{ $$ = que_node_list_add_last($1, $3); }
;
variable_declaration:
PARS_ID_TOKEN type_name ';'
{ $$ = pars_variable_declaration($1, $2); }
;
variable_declaration_list:
/* Nothing */
| variable_declaration
| variable_declaration_list variable_declaration
;
cursor_declaration:
PARS_DECLARE_TOKEN PARS_CURSOR_TOKEN PARS_ID_TOKEN
PARS_IS_TOKEN select_statement ';'
{ $$ = pars_cursor_declaration($3, $5); }
;
declaration_list:
/* Nothing */
| cursor_declaration
| declaration_list cursor_declaration
;
procedure_definition:
PARS_PROCEDURE_TOKEN PARS_ID_TOKEN '(' parameter_declaration_list ')'
PARS_IS_TOKEN
variable_declaration_list
declaration_list
PARS_BEGIN_TOKEN
statement_list
PARS_END_TOKEN { $$ = pars_procedure_definition($2, $4,
$10); }
;
%%