Add data structures for tokenizing and parsing

* Add data structures and helper functions for ast

* Add data structures for tokenizing

* Add helper functions for token structures

* Include token.h in minishell.h

* Add new/free functions for nodes/tokens to Makefile

* Add UNREACHABLE macro to debug_tools.h

1 files changed, 52 insertions, 0 deletions

diff --git a/src/new_token.c b/src/new_token.c
new file mode 100644
index 0000000..92ff421
--- /dev/null
+++ b/src/new_token.c
@@ -0,0 +1,52 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   new_token.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/06/27 14:29:44 by dkaiser           #+#    #+#             */
+/*   Updated: 2024/06/28 14:59:34 by dkaiser          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "token.h"
+
+t_token	*new_token(int type, t_token *previous, t_token *next)
+{
+	t_token	*token;
+
+	token = malloc(sizeof(t_token));
+	if (token == NULL)
+		return (NULL);
+	token->type = type;
+	token->previous = previous;
+	token->next = next;
+	if (previous != NULL)
+		token->previous->next = token;
+	if (next != NULL)
+		token->next->previous = token;
+	return (token);
+}
+
+t_token	*new_str_token(char *str, t_token *previous, t_token *next)
+{
+	t_token	*token;
+
+	token = new_token(STRING_TOKEN, previous, next);
+	if (token == NULL)
+		return (NULL);
+	token->content.string = str;
+	return (token);
+}
+
+t_token	*new_redir_token(int type, t_token *previous, t_token *next)
+{
+	t_token	*token;
+
+	token = new_token(REDIR_TOKEN, previous, next);
+	if (token == NULL)
+		return (NULL);
+	token->content.redir_type = type;
+	return (token);
+}