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#ifndef AST_H
# define AST_H
/**
** \file ast.h
** \brief AST structs
*/
# include <stdlib.h>
# include <stdbool.h>
# include "libft_mem.h"
# include "libft_util.h"
/**
** \brief Separator type
** \param SEP_END Regular command end `;`
** \param SEP_PIPE Pipe output of left to right `|`
** \param SEP_AND Execute right if left status == 0 `&&`
** \param SEP_OR Execute right if left status != 0 `||`
*/
typedef enum
{
SEP_END,
SEP_PIPE,
SEP_AND,
SEP_OR,
} t_sep;
struct s_ast;
/**
** \brief Line struct
** \param left AST to the left of separator
** \param right AST to the right of separator
** \param sep Type of separator
*/
typedef struct
{
struct s_ast *left;
struct s_ast *right;
t_sep sep;
} t_line;
/**
** \brief Command struct
** \param argv Array of string, all arguments beginning with executable name
** \param in STDIN redirection filename
** \param out STDOUT redirection filename
** \param is_append True if out redirection is append to file
*/
typedef struct
{
char **argv;
char *in;
char *out;
bool is_append;
} t_cmd;
/**
** \brief AST node tag (type)
** \param TAG_CMD Command AST node
** \param TAG_LINE Line AST node
*/
typedef enum
{
TAG_CMD,
TAG_LINE,
} t_ast_tag;
/**
** \brief AST node struct
** \param tag Node tag
** \param data Union containning possible node data
** \param data::cmd Command struct
** \param data::line Line struct
*/
typedef struct s_ast
{
t_ast_tag tag;
union
{
t_line line;
t_cmd cmd;
} data;
} t_ast;
t_ast *ast_new(t_ast_tag tag, void *data);
void ast_destroy(t_ast *ast);
#endif
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