42sh/src/utils/ast/ast_redir.h

#ifndef AST_REDIR_H
#define AST_REDIR_H

#include <stdbool.h>

#include "utils/ast/ast_base.h"

enum ast_redir_type
{
    AST_REDIR_TYPE_LESS, // <
    AST_REDIR_TYPE_GREAT, // >
    AST_REDIR_TYPE_DLESS, // <<
    AST_REDIR_TYPE_DGREAT, // >>
    AST_REDIR_TYPE_LESSAND, // <&
    AST_REDIR_TYPE_GREATAND, // >&
    AST_REDIR_TYPE_CLOBBER // >|
};

struct ast_redir
{
    struct ast *child;
    char *filename;
    int io_number; // The FD being redirected (default -1 if not specified,
                   // implies 0 or 1 based on type)
    enum ast_redir_type type;
};

bool ast_is_redir(struct ast *node);
struct ast_redir *ast_get_redir(struct ast *node);
struct ast *ast_create_redir(struct ast *child, char *filename, int io_number,
                             enum ast_redir_type type);
void ast_free_redir(struct ast_redir *redir);

#endif /* ! AST_REDIR_H */