homework-jianmu/source/libs/index/inc/index_fst_automation.h

85 lines
2.2 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* 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.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __INDEX_FST_AUTAOMATION_H__
#define __INDEX_FST_AUTAOMATION_H__
#ifdef __cplusplus
extern "C" {
#endif
#include "index_fst_util.h"
typedef struct AutomationCtx AutomationCtx;
typedef enum AutomationType {
AUTOMATION_PREFIX,
AUTMMATION_MATCH
} AutomationType;
typedef struct StartWith {
AutomationCtx *autoSelf;
} StartWith;
typedef struct Complement {
AutomationCtx *autoSelf;
} Complement;
// automation
typedef struct AutomationCtx {
AutomationType type;
void *stdata;
char *data;
} AutomationCtx;
typedef enum ValueType { FST_INT, FST_CHAR, FST_ARRAY} ValueType;
typedef enum StartWithStateKind { Done, Running } StartWithStateKind;
typedef struct StartWithStateValue {
StartWithStateKind kind;
ValueType type;
union {
int val;
char *ptr;
SArray *arr;
// add more type
} ;
} StartWithStateValue;
StartWithStateValue *startWithStateValueCreate(StartWithStateKind kind, ValueType ty, void *val);
StartWithStateValue *startWithStateValueDump(StartWithStateValue *sv);
void startWithStateValueDestroy(void *sv);
typedef struct AutomationFunc {
void* (*start)(AutomationCtx *ctx) ;
bool (*isMatch)(AutomationCtx *ctx, void *);
bool (*canMatch)(AutomationCtx *ctx, void *data);
bool (*willAlwaysMatch)(AutomationCtx *ctx, void *state);
void* (*accept)(AutomationCtx *ctx, void *state, uint8_t byte);
void* (*acceptEof)(AutomationCtx *ct, void *state);
} AutomationFunc;
AutomationCtx *automCtxCreate(void *data, AutomationType atype);
void automCtxDestroy(AutomationCtx *ctx);
extern AutomationFunc automFuncs[];
#ifdef __cplusplus
}
#endif
#endif