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node.h
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node.h
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#ifndef NODE_H
#define NODE_H
enum node_type_e
{
NODE_COMMAND, /* simple command */
NODE_VAR, /* variable name (or simply, a word)*/
};
enum val_type_e
{
VAL_SINT = 1, /* signed int */
VAL_UINT, /* unsigned int */
VAL_SLLONG, /* signed long long */
VAL_ULLONG, /* unsigned long long */
VAL_FLOAT, /* float input */
VAL_LDOUBLE, /* long double */
VAL_CHR, /* char */
VAL_STR, /* str (char pointer) */
};
union symval_u
{
long sint;
unsigned long uint;
long long sllong;
unsigned long long ullong;
double sfloat;
long double ldouble;
char chr;
char *str;
};
struct node_s
{
enum node_type_e type; /* type of this node */
enum val_type_e val_type; /* type of this node's val field */
union symval_u val; /* value of this node */
int children; /* number od child nodes */
struct node_s *first_child; /* first child node */
struct node_s *next_sibling, *prev_sibling; /* if this is a child node, keep pointers to prev/next siblings*/
};
struct node_s *new_node(enum node_type_e type);
void add_child_node(struct node_s *parent, struct node_s *child);
void free_node_tree(struct node_s *node);
void set_node_val_str(struct node_s *node, char *val);
#endif