diff --git a/src/entry/Maat_rule.cpp b/src/entry/Maat_rule.cpp
index 3124cce..efadc00 100644
--- a/src/entry/Maat_rule.cpp
+++ b/src/entry/Maat_rule.cpp
@@ -523,26 +523,6 @@ error_out:
 	return ret;
 }
 
-void * HASH_fetch_by_id(MESA_htable_handle hash,int id)
-{
-	return MESA_htable_search(hash,(unsigned char*)&(id),sizeof(id));
-}
-int HASH_add_by_id(MESA_htable_handle hash,int id,void*data)
-{
-	int ret=0;
-	ret=MESA_htable_add(hash
-					,(unsigned char*)&(id)
-					,sizeof(id)
-					,data);
-	return ret;
-}
-int HASH_delete_by_id(MESA_htable_handle hash,int id)
-{
-	//destroy function had been initialized when hash create.
-	int ret=-1;
-	ret=MESA_htable_del(hash,(unsigned char*)&id, sizeof(id), NULL);
-	return ret;
-}
 MAAT_RULE_EX_DATA rule_ex_data_new(const struct Maat_rule_head * rule_head, const char* srv_def, const struct compile_ex_data_idx* ex_desc)
 {
 	MAAT_RULE_EX_DATA ad=NULL;
diff --git a/src/entry/hyperscan_adapter.cpp b/src/entry/hyperscan_adapter.cpp
index 007b7f3..8fc03fc 100644
--- a/src/entry/hyperscan_adapter.cpp
+++ b/src/entry/hyperscan_adapter.cpp
@@ -1,5 +1,6 @@
 #include <hs_compile.h>
 #include <hs_runtime.h>
+#include <Maat_utils.h>
 struct hs_adapter
 {
 	hs_database_t *hs_pure_literal_db;
@@ -7,11 +8,51 @@ struct hs_adapter
 	struct bool_matcher *logical_matcher;
 	int mode;
 	int n_thread;
+	size_t regex_cnt;
+	size_t regex_sub_pattern_cnt;
+	size_t pure_lit_cnt;
+	size_t pure_lit_sub_pattern_cnt;
+	void **user_tag_array;
 	hs_scratch_t *scratchs[];
 };
-
 struct hs_adapter *hs_adapter_new(struct hs_expression ** exprs, size_t n_expr, int scan_mode, int n_thread)
 {
+	struct hs_adapter *hsa=ALLOC(struct hs_adapter, 1);
+	size_t i=0, j=0;
+	unsigned int *hs_ids=NULL;
+	for(i=0; i<n_expr; i++)
+	{
+		if(exprs[i].is_regex)
+		{
+			hsa->regex_cnt++;
+			hsa->regex_sub_pattern_cnt=exprs[i].n_sub_pattern;
+		}
+		else
+		{
+			hsa->pure_lit_cnt++;
+			hsa->pure_lit_sub_pattern_cnt++;
+		}
+	}
+	const char **regex_exprs=NULL, **pure_lit_exprs=NULL;
+	if(hsa->regex_sub_pattern_cnt>0)
+	{
+		regex_exprs=ALLOC(char *, hsa->regex_sub_pattern_cnt);
+	}
+	if(hsa->pure_lit_sub_pattern_cnt>0)
+	{
+		pure_lit_exprs=ALLOC(char *, hsa->pure_lit_sub_pattern_cnt)
+	}
+	size_t sub_pure_lit_idx=0, sub_regex_idx=0;
+	for(i=0; i<n_expr; i++)
+	{
+		for(j=0; j<exprs[i]->n_sub_pattern; j++)
+		{
+			regex_exprs[j]=exprs[i].
+		}
+		sub_pure_lit_idx
+
+	}
+	struct bool_expr *bool_exprs=ALLOC(struct bool_expr, 1);
 }
 void hs_adpter_free(struct hs_adapter *adapter)
 {
@@ -20,3 +61,7 @@ void hs_adpter_free(struct hs_adapter *adapter)
 int hs_adapter_scan(struct hs_adapter *adapter, int thread_id, const char* data, unsigned int length, void **matched_tags, size_t n_tag)
 {
 }
+int hs_adapter_open_stream(struct hs_adapter *adapter, int thread_id)
+{
+
+}
\ No newline at end of file
diff --git a/src/inc_internal/hyperscan_adapter.h b/src/inc_internal/hyperscan_adapter.h
index 9aadd53..c2fef40 100644
--- a/src/inc_internal/hyperscan_adapter.h
+++ b/src/inc_internal/hyperscan_adapter.h
@@ -16,14 +16,23 @@ struct hs_pattern
 
 struct hs_expression
 {
-	void *user_tag;
-	enum MAAT_EXPR_TYPE type;
-	size_t n_sub_pattern;
+	void * user_tag;
+	int is_regex;	//if is_regex==1, then n_sub_pattern must be 1
+	size_t n_sub_pattern;	//must not exceed HSA_MAX_SUB_STRING_NUM
 	struct hs_pattern sub_patterns[];
 };
+
 struct hs_adapter;
+#define HSA_SCAN_MODE_BLOCK	0
+#define	HSA_SCAN_MODE_STREAM 1
+/**
+ * @param scan_mode 
+ * 			HSA_SCAN_MODE_BLOCK or HSA_SCAN_MODE_STREAM
+ * @param exprs
+ * 			Expressions to match, it's life time must be longger than the hs_adapter.
+*/
 struct hs_adapter *hs_adapter_new(const struct hs_expression ** exprs, size_t n_expr, int scan_mode, int n_thread);
-void hs_adpter_free(struct hs_adapter *adapter);
+void hs_adapter_free(struct hs_adapter *adapter);
 
 int hs_adapter_scan(struct hs_adapter *adapter, int thread_id, const char* data, unsigned int length, void **matched_tags, size_t n_tag);