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Diffstat (limited to 'storage/xtradb/fts/fts0pars.y')
| -rw-r--r-- | storage/xtradb/fts/fts0pars.y | 294 |
1 files changed, 0 insertions, 294 deletions
diff --git a/storage/xtradb/fts/fts0pars.y b/storage/xtradb/fts/fts0pars.y deleted file mode 100644 index e48036e82fe..00000000000 --- a/storage/xtradb/fts/fts0pars.y +++ /dev/null @@ -1,294 +0,0 @@ -/***************************************************************************** - -Copyright (c) 2007, 2014, Oracle and/or its affiliates. All Rights Reserved. - -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; version 2 of the License. - -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., -51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA - -*****************************************************************************/ - -/** - * @file fts/fts0pars.y - * FTS parser: input file for the GNU Bison parser generator - * - * Created 2007/5/9 Sunny Bains - */ - -%{ - -#include "mem0mem.h" -#include "fts0ast.h" -#include "fts0blex.h" -#include "fts0tlex.h" -#include "fts0pars.h" - -extern int fts_lexer(YYSTYPE*, fts_lexer_t*); -extern int fts_blexer(YYSTYPE*, yyscan_t); -extern int fts_tlexer(YYSTYPE*, yyscan_t); - -typedef int (*fts_scan)(); - -extern int ftserror(const char* p); - -/* Required for reentrant parser */ -#define ftslex fts_lexer - -#define YYERROR_VERBOSE - -/* For passing an argument to yyparse() */ -#define YYPARSE_PARAM state -#define YYLEX_PARAM ((fts_ast_state_t*) state)->lexer - -typedef int (*fts_scanner_alt)(YYSTYPE* val, yyscan_t yyscanner); -typedef int (*fts_scanner)(); - -struct fts_lexer_struct { - fts_scanner scanner; - void* yyscanner; -}; - -%} - -%union { - int oper; - fts_ast_string_t* token; - fts_ast_node_t* node; -}; - -/* Enable re-entrant parser */ -%pure_parser - -%token<oper> FTS_OPER -%token<token> FTS_TEXT FTS_TERM FTS_NUMB - -%type<node> prefix term text expr sub_expr expr_lst query - -%nonassoc '+' '-' '~' '<' '>' - -%% - -query : expr_lst { - $$ = $1; - ((fts_ast_state_t*) state)->root = $$; - } - ; - -expr_lst: /* Empty */ { - $$ = NULL; - } - - | expr_lst expr { - $$ = $1; - - if (!$$) { - $$ = fts_ast_create_node_list(state, $2); - } else { - fts_ast_add_node($$, $2); - } - } - - | expr_lst sub_expr { - $$ = $1; - $$ = fts_ast_create_node_list(state, $1); - - if (!$$) { - $$ = $2; - } else { - fts_ast_add_node($$, $2); - } - } - ; - -sub_expr: '(' expr_lst ')' { - $$ = $2; - - if ($$) { - $$ = fts_ast_create_node_subexp_list(state, $$); - } - } - - | prefix '(' expr_lst ')' { - $$ = fts_ast_create_node_list(state, $1); - - if ($3) { - fts_ast_add_node($$, - fts_ast_create_node_subexp_list(state, $3)); - } - } - ; - -expr : term { - $$ = $1; - } - - | text { - $$ = $1; - } - - | term '*' { - fts_ast_term_set_wildcard($1); - } - - | text '@' FTS_NUMB { - fts_ast_term_set_distance($1, fts_ast_string_to_ul($3, 10)); - fts_ast_string_free($3); - } - - | prefix term '*' { - $$ = fts_ast_create_node_list(state, $1); - fts_ast_add_node($$, $2); - fts_ast_term_set_wildcard($2); - } - - | prefix term { - $$ = fts_ast_create_node_list(state, $1); - fts_ast_add_node($$, $2); - } - - | prefix text '@' FTS_NUMB { - $$ = fts_ast_create_node_list(state, $1); - fts_ast_add_node($$, $2); - fts_ast_term_set_distance($2, fts_ast_string_to_ul($4, 10)); - fts_ast_string_free($4); - } - - | prefix text { - $$ = fts_ast_create_node_list(state, $1); - fts_ast_add_node($$, $2); - } - ; - -prefix : '-' { - $$ = fts_ast_create_node_oper(state, FTS_IGNORE); - } - - | '+' { - $$ = fts_ast_create_node_oper(state, FTS_EXIST); - } - - | '~' { - $$ = fts_ast_create_node_oper(state, FTS_NEGATE); - } - - | '<' { - $$ = fts_ast_create_node_oper(state, FTS_DECR_RATING); - } - - | '>' { - $$ = fts_ast_create_node_oper(state, FTS_INCR_RATING); - } - ; - -term : FTS_TERM { - $$ = fts_ast_create_node_term(state, $1); - fts_ast_string_free($1); - } - - | FTS_NUMB { - $$ = fts_ast_create_node_term(state, $1); - fts_ast_string_free($1); - } - - /* Ignore leading '*' */ - | '*' term { - $$ = $2; - } - ; - -text : FTS_TEXT { - $$ = fts_ast_create_node_text(state, $1); - fts_ast_string_free($1); - } - ; -%% - -/******************************************************************** -*/ -int -ftserror( -/*=====*/ - const char* p) -{ - fprintf(stderr, "%s\n", p); - return(0); -} - -/******************************************************************** -Create a fts_lexer_t instance.*/ - -fts_lexer_t* -fts_lexer_create( -/*=============*/ - ibool boolean_mode, - const byte* query, - ulint query_len) -{ - fts_lexer_t* fts_lexer = static_cast<fts_lexer_t*>( - ut_malloc(sizeof(fts_lexer_t))); - - if (boolean_mode) { - fts0blex_init(&fts_lexer->yyscanner); - fts0b_scan_bytes((char*) query, query_len, fts_lexer->yyscanner); - fts_lexer->scanner = (fts_scan) fts_blexer; - /* FIXME: Debugging */ - /* fts0bset_debug(1 , fts_lexer->yyscanner); */ - } else { - fts0tlex_init(&fts_lexer->yyscanner); - fts0t_scan_bytes((char*) query, query_len, fts_lexer->yyscanner); - fts_lexer->scanner = (fts_scan) fts_tlexer; - } - - return(fts_lexer); -} - -/******************************************************************** -Free an fts_lexer_t instance.*/ -void - -fts_lexer_free( -/*===========*/ - fts_lexer_t* fts_lexer) -{ - if (fts_lexer->scanner == (fts_scan) fts_blexer) { - fts0blex_destroy(fts_lexer->yyscanner); - } else { - fts0tlex_destroy(fts_lexer->yyscanner); - } - - ut_free(fts_lexer); -} - -/******************************************************************** -Call the appropaiate scanner.*/ - -int -fts_lexer( -/*======*/ - YYSTYPE* val, - fts_lexer_t* fts_lexer) -{ - fts_scanner_alt func_ptr; - - func_ptr = (fts_scanner_alt) fts_lexer->scanner; - - return(func_ptr(val, fts_lexer->yyscanner)); -} - -/******************************************************************** -Parse the query.*/ -int -fts_parse( -/*======*/ - fts_ast_state_t* state) -{ - return(ftsparse(state)); -} |