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#ifndef SCOPE_H
#define SCOPE_H
#include "node.h"
#define HASH_SIZE 211
typedef struct hash {
node* table[HASH_SIZE];
struct hash *prev;
node* ret_var;
} scope;
scope* mkscope();
void free_scope(scope*);
/*stack routines*/
void pop_scope(scope**);
void push_scope(scope**);
/*helpers*/
node* scope_insert(scope*, char*);
node* scope_search_all(scope*, char*);
node* scope_search(scope*, char*);
node* scope_safe_search(scope*, char*);
/*hash function*/
int hashpjw(char*);
#endif
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