monty.h

#ifndef _MONTY_H_
#define _MONTY_H_

#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>

/**
 * struct stack_s - doubly linked list representation of a stack (or queue)
 * 
 * @n: integer
 * @prev: points to the previous element of the stack (or queue)
 * @next: points to the next element of the stack (or queue)
 *
 * Description: doubly linked list node structure
 * for stack, queues, LIFO, FIFO
 */
typedef struct stack_s
{
	int n;
	struct stack_s *prev;
	struct stack_s *next;
} stack_t;

/**
 * struct instruction_s - opcode and its function
 * 
 * @opcode: the opcode
 * @f: function to handle the opcode
 *
 * Description: opcode and its function
 * for stack, queues, LIFO, FIFO
 */
typedef struct instruction_s
{
	char *opcode;
	void (*f)(stack_t **stack, unsigned int line_number);
} instruction_t;

typedef struct global_s
{
	int ln;
	char **argv;
	FILE *fd;
	stack_t *top;
} global_t;

extern global_t gvar;
global_t gvar;

/* get the commands functions */
char *_strdup(const char *input);
char **get_line_cmds(const char *line);
void free_command(char **full_command);
int count_commands(const char *command);

/* select the opcode */
void (*select_opcode(char *code))(stack_t **stack, unsigned int line_number);

/* opcodes functions */
void _push(stack_t **stack, unsigned int line_number);
void _pall(stack_t **stack, unsigned int line_number);
void _pint(stack_t **stack, unsigned int line_number);
void _pop(stack_t **stack, unsigned int line_number);
void _swap(stack_t **stack, unsigned int line_number);
void _add(stack_t **stack, unsigned int line_number);
void _nop(stack_t **stack, unsigned int line_number);
void _sub(stack_t **stack, unsigned int line_number);
void _divide(stack_t **stack, unsigned int line_number);
void _mul(stack_t **stack, unsigned int line_number);
void _mod(stack_t **stack, unsigned int line_number);
void _pchar(stack_t **stack, unsigned int line_number);
void _pstr(stack_t **stack, unsigned int line_number);
void _rotl(stack_t **stack, unsigned int line_number);
void _rotr(stack_t **stack, unsigned int line_number);

/* dll functions */
stack_t *add_dnodeint(stack_t **head, const int n);
void free_dlistint(stack_t *head);

#endif /* _MONTY_H_ */