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/*
Copyright(C) 2009-2017 Brazil
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
typedef unsigned int grn_expr_flags;
#define GRN_EXPR_SYNTAX_QUERY (0x00)
#define GRN_EXPR_SYNTAX_SCRIPT (0x01)
#define GRN_EXPR_SYNTAX_OUTPUT_COLUMNS (0x20)
#define GRN_EXPR_SYNTAX_ADJUSTER (0x40)
#define GRN_EXPR_ALLOW_PRAGMA (0x02)
#define GRN_EXPR_ALLOW_COLUMN (0x04)
#define GRN_EXPR_ALLOW_UPDATE (0x08)
#define GRN_EXPR_ALLOW_LEADING_NOT (0x10)
#define GRN_EXPR_QUERY_NO_SYNTAX_ERROR (0x80)
GRN_API grn_obj *grn_expr_create(grn_ctx *ctx, const char *name, unsigned int name_size);
GRN_API grn_rc grn_expr_close(grn_ctx *ctx, grn_obj *expr);
GRN_API grn_obj *grn_expr_add_var(grn_ctx *ctx, grn_obj *expr,
const char *name, unsigned int name_size);
GRN_API grn_obj *grn_expr_get_var(grn_ctx *ctx, grn_obj *expr,
const char *name, unsigned int name_size);
GRN_API grn_obj *grn_expr_get_var_by_offset(grn_ctx *ctx, grn_obj *expr, unsigned int offset);
GRN_API grn_rc grn_expr_clear_vars(grn_ctx *ctx, grn_obj *expr);
GRN_API void grn_expr_take_obj(grn_ctx *ctx, grn_obj *expr, grn_obj *obj);
GRN_API grn_obj *grn_expr_append_obj(grn_ctx *ctx, grn_obj *expr, grn_obj *obj,
grn_operator op, int nargs);
GRN_API grn_obj *grn_expr_append_const(grn_ctx *ctx, grn_obj *expr, grn_obj *obj,
grn_operator op, int nargs);
GRN_API grn_obj *grn_expr_append_const_str(grn_ctx *ctx, grn_obj *expr,
const char *str, unsigned int str_size,
grn_operator op, int nargs);
GRN_API grn_obj *grn_expr_append_const_int(grn_ctx *ctx, grn_obj *expr, int i,
grn_operator op, int nargs);
GRN_API grn_rc grn_expr_append_op(grn_ctx *ctx, grn_obj *expr, grn_operator op, int nargs);
GRN_API grn_rc grn_expr_get_keywords(grn_ctx *ctx, grn_obj *expr, grn_obj *keywords);
GRN_API grn_rc grn_expr_syntax_escape(grn_ctx *ctx,
const char *query, int query_size,
const char *target_characters,
char escape_character,
grn_obj *escaped_query);
GRN_API grn_rc grn_expr_syntax_escape_query(grn_ctx *ctx,
const char *query, int query_size,
grn_obj *escaped_query);
GRN_API grn_rc grn_expr_syntax_expand_query(grn_ctx *ctx,
const char *query, int query_size,
grn_expr_flags flags,
grn_obj *expander,
grn_obj *expanded_query);
GRN_API grn_rc grn_expr_syntax_expand_query_by_table(grn_ctx *ctx,
const char *query,
int query_size,
grn_expr_flags flags,
grn_obj *term_column,
grn_obj *expanded_term_column,
grn_obj *expanded_query);
GRN_API grn_rc grn_expr_compile(grn_ctx *ctx, grn_obj *expr);
GRN_API grn_obj *grn_expr_rewrite(grn_ctx *ctx, grn_obj *expr);
GRN_API grn_rc grn_expr_dump_plan(grn_ctx *ctx, grn_obj *expr, grn_obj *buffer);
GRN_API grn_obj *grn_expr_exec(grn_ctx *ctx, grn_obj *expr, int nargs);
GRN_API grn_obj *grn_expr_alloc(grn_ctx *ctx, grn_obj *expr,
grn_id domain, unsigned char flags);
#define GRN_EXPR_CREATE_FOR_QUERY(ctx,table,expr,var) do {\
if (((expr) = grn_expr_create((ctx), NULL, 0)) &&\
((var) = grn_expr_add_var((ctx), (expr), NULL, 0))) {\
GRN_RECORD_INIT((var), 0, grn_obj_id((ctx), (table)));\
} else {\
(var) = NULL;\
}\
} while (0)
GRN_API grn_rc grn_expr_parse(grn_ctx *ctx, grn_obj *expr,
const char *str, unsigned int str_size,
grn_obj *default_column, grn_operator default_mode,
grn_operator default_op, grn_expr_flags flags);
GRN_API grn_obj *grn_expr_snip(grn_ctx *ctx, grn_obj *expr, int flags,
unsigned int width, unsigned int max_results,
unsigned int n_tags,
const char **opentags, unsigned int *opentag_lens,
const char **closetags, unsigned int *closetag_lens,
grn_snip_mapping *mapping);
GRN_API grn_rc grn_expr_snip_add_conditions(grn_ctx *ctx,
grn_obj *expr,
grn_obj *snip,
unsigned int n_tags,
const char **opentags,
unsigned int *opentag_lens,
const char **closetags,
unsigned int *closetag_lens);
GRN_API unsigned int grn_expr_estimate_size(grn_ctx *ctx, grn_obj *expr);
#ifdef __cplusplus
}
#endif
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