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/*
** tree.h
** TecCGraf - PUC-Rio
** $Id: tree.h,v 1.6 1994/11/23 14:31:11 roberto Stab roberto $
*/
#ifndef tree_h
#define tree_h
#define NOT_USED 0xFFFE
typedef struct TaggedString
{
unsigned long hash; /* 0 if not initialized */
char marked; /* for garbage collection */
char str[1]; /* \0 byte already reserved */
} TaggedString;
typedef struct TreeNode
{
struct TreeNode *right;
struct TreeNode *left;
unsigned short varindex; /* != NOT_USED if this is a symbol */
unsigned short constindex; /* != NOT_USED if this is a constant */
TaggedString ts;
} TreeNode;
TaggedString *lua_createstring (char *str);
TreeNode *lua_constcreate (char *str);
int lua_strcollector (void);
TreeNode *lua_varnext (char *n);
#endif
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