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, 72 insertions, 0 deletions

diff --git a/src/new_node.c b/src/new_node.c
new file mode 100644
index 0000000..4cdbf9a
--- /dev/null
+++ b/src/new_node.c
@@ -0,0 +1,72 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   new_node.c                                         :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/06/27 11:21:03 by dkaiser           #+#    #+#             */
+/*   Updated: 2024/06/28 15:04:15 by dkaiser          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ast.h"
+
+t_node	*new_node(int type)
+{
+	t_node	*node;
+
+	node = malloc(sizeof(t_node));
+	if (node == NULL)
+		return (NULL);
+	node->type = type;
+	return (node);
+}
+
+t_node	*new_assign_node(char *var, char *value)
+{
+	t_node	*node;
+
+	node = new_node(ASSIGN_NODE);
+	if (node == NULL)
+		return (NULL);
+	node->content.assign.var = var;
+	node->content.assign.value = value;
+	return (node);
+}
+
+t_node	*new_pipe_node(t_node *left, t_node *right)
+{
+	t_node	*node;
+
+	node = new_node(PIPE_NODE);
+	if (node == NULL)
+		return (NULL);
+	node->content.pipe.left = left;
+	node->content.pipe.right = right;
+	return (node);
+}
+
+t_node	*new_cmd_node(char **args, t_redirection redirs[2])
+{
+	t_node	*node;
+
+	node = new_node(CMD_NODE);
+	if (node == NULL)
+		return (NULL);
+	node->content.cmd.args = args;
+	node->content.cmd.redirs[0] = redirs[0];
+	node->content.cmd.redirs[1] = redirs[1];
+	return (node);
+}
+
+t_node	*new_string_node(char *string)
+{
+	t_node	*node;
+
+	node = new_node(STRING_NODE);
+	if (node == NULL)
+		return (NULL);
+	node->content.string = string;
+	return (node);
+}