Started working on ast

ast/include/ast.h

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+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ast.h                                              :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: maiboyer <maiboyer@student.42.fr>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/06/11 14:23:40 by maiboyer          #+#    #+#             */
+/*   Updated: 2024/06/11 14:24:38 by maiboyer         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef AST_H
+#define AST_H
+
+#include "ast/ast_forward_def.h"
+#include "me/types.h"
+
+/*
+	ast_statement:
+		case_statement
+		command
+		compound_statement
+		for_statement
+		function_definition
+		if_statement
+		list
+		negated_command
+		pipeline
+		redirected_statement
+		subshell
+		variable_assignment
+		variable_assignments
+		while_statement
+
+	ast_statement_not_pipeline == ast_statement-pipeline
+	ast_statement_not_subshell == ast_statement-subshell
+*/
+
+enum e_ast_node_kind
+{
+	AST_EMPTY,
+	AST_COMMAND,
+};
+
+enum e_ast_word_kind
+{
+	AST_WORD_NO_QUOTE,
+	AST_WORD_SINGLE_STRING,
+	AST_WORD_DOUBLE_QUOTED,
+	AST_WORD_BACK_QUOTED,
+};
+
+struct s_ast_empty
+{
+};
+
+struct s_ast_raw_string
+{
+	t_str	str;
+	t_usize len;
+};
+
+/// @brief A string that is double quoted
+/// @param parts this can be multiple things:
+///		- a "raw" string (no processing needed)
+///		- a expension (variable, command substitution, artihmetic expansion, etc.)
+/// @param parts_len the number of parts in the string
+struct s_ast_built_string
+{
+	t_ast_node *parts;
+	t_usize		parts_len;
+};
+
+struct s_ast_pipeline
+{
+	t_ast_node *statements;
+	t_usize		statements_len;
+};
+
+struct s_ast_word
+{
+	t_ast_word_kind kind;
+	t_ast_node	   *inner;
+};
+
+struct s_ast_command
+{
+	t_ast_node *prefixes;
+	t_ast_node *cmd_word;
+	t_ast_node *suffixes;
+	t_usize		prefixes_len;
+	t_usize		cmd_word_len;
+	t_usize		suffixes_len;
+};
+
+union u_ast_node_data {
+	t_ast_empty	  empty;
+	t_ast_command command;
+};
+
+struct s_ast_node
+{
+	t_ast_node_kind kind;
+	t_ast_node_data data;
+};
+
+#endif /* AST_H */

ast/include/ast/ast_forward_def.h

@@ -0,0 +1,30 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ast_forward_def.h                                  :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: maiboyer <maiboyer@student.42.fr>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/06/11 14:24:24 by maiboyer          #+#    #+#             */
+/*   Updated: 2024/06/11 14:24:25 by maiboyer         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef AST_FORWARD_DEF_H
+#define AST_FORWARD_DEF_H
+
+typedef enum e_ast_node_kind t_ast_node_kind;
+typedef enum e_ast_word_kind t_ast_word_kind;
+
+typedef union u_ast_node_data t_ast_node_data;
+
+typedef struct s_ast_node t_ast_node;
+
+typedef struct s_ast_empty		  t_ast_empty;
+typedef struct s_ast_command	  t_ast_command;
+typedef struct s_ast_word		  t_ast_word;
+typedef struct s_ast_pipeline	  t_ast_pipeline;
+typedef struct s_ast_raw_string	  t_ast_raw_string;
+typedef struct s_ast_built_string t_ast_built_string;
+
+#endif /* AST_FORWARD_DEF_H */