tokenizer v2

tests/parse.c

@@ -12,7 +12,12 @@
 
 #include "tokenizer/tokenizer.h"
 
-/*void truncate_after_exit_word(char **lst)*/
+/*str_equal(char *original)*/
+/*{*/
+/**/
+/*}*/
+
+/*void truncate_after_exit_word(char *str)*/
 /*{*/
 /*	int	i;*/
 /*	int	depth;*/
@@ -23,31 +28,7 @@
 /*	truncate_mode = FALSE;*/
 /*	while (lst[i])*/
 /*	{*/
-/*		if (truncate_mode)*/
+/**/
-/*		{*/
-/*			free(lst[i]);*/
-/*			lst[i] = NULL;*/
-/*		}*/
-/*		else*/
-/*		{*/
-/*			if (lst[i][0] == '(')*/
-/*				depth += 1;*/
-/*			if (lst[i][ft_strlen(lst[i]) - 1] == ')')*/
-/*				depth -= 1;*/
-/*			if (!ft_strncmp(lst[i], "exit", 4) && depth == 0)*/
-/*				truncate_mode = TRUE;*/
-/*		}*/
-/*		i++;*/
-/*	}*/
-/*}*/
-
-/*void print_tab(char **lst)*/
-/*{*/
-/*	int i = 0;*/
-/*	while (lst[i])*/
-/*	{*/
-/*		printf("%s\n", lst[i]);*/
-/*		i++;*/
 /*	}*/
 /*}*/
 
@@ -68,8 +49,7 @@ int main (int ac, char **av)
 
 	if (str)
 	{
-		/*truncate_after_exit_word(lst);*/
+		/*truncate_after_exit_word(str);*/
-		/*free_tab(lst);*/
 		lst = tokenize(str);
 		print_linked_list(lst);
 	}

tests/tokenizer/copy_token_string.c

@@ -0,0 +1,93 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   copy_token_string.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: nalebrun <nalebrun@student.s19.be>        +#+  +:+       +#+         */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/01/16 12:48:50  by nalebrun         #+#    #+#             */
+/*   Updated: 2025/01/16 12:48:50  by nalebrun        ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "tokenizer.h" 
+
+int	is_meta_token(char c)
+{
+	if (c == '&' || c == '|'
+		|| c == '(' || c == ')'
+		|| c == '>' || c == '<')
+		return (1);
+	return (0);
+}
+
+int	skip_meta_token(char *str)
+{
+	int	i;
+
+	i = 0;
+	if ((str[i] == '&')
+		|| (str[i] == '|' && str[i + 1] && str[i + 1] == '|')
+		|| (str[i] == '<' && str[i + 1] && str[i + 1] == '<')
+		|| (str[i] == '>' && str[i + 1] && str[i + 1] == '>'))
+		i = 2;
+	else
+		i = 1;
+	return (i);
+}
+
+int	go_to_next_meta_token(char *str)
+{
+	int	i;
+
+	i = 0;
+	while (str [i]
+		&& str[i] != '&'
+		&& str[i] != '|'
+		&& str[i] != '('
+		&& str[i] != ')'
+		&& str[i] != '<'
+		&& str[i] != '>')
+		i++;
+	return (i);
+}
+
+static int	go_to_second_next_space_block(char *str)
+{
+	int	i;
+
+	i = 0;
+	while (str[i] && str[i] == ' ')
+		i++;
+	while (str[i] && str[i] != ' ')
+		i++;
+	return (i);
+}
+
+char	*copy_token_string(char *str, char last_token)
+{
+	char	*out;
+	char	*trimed_out;
+	int		i;
+	int		j;
+
+	i = 0;
+	while (str[i] && str[i] == ' ')
+		i++;
+	if (is_meta_token(str[i]))
+		i += skip_meta_token(&str[i]);
+	else if (last_token != '<' && last_token != '>')
+		i += go_to_next_meta_token(&str[i]);
+	else
+		i += go_to_second_next_space_block(&str[i]);
+	out = malloc(i + 1);
+	if (!out)
+		return (NULL);
+	j = -1;
+	while (++j < i)
+		out[j] = str[j];
+	out[j] = 0;
+	trimed_out = ft_strtrim(out, " ");
+	free(out);
+	return (trimed_out);
+}

tests/tokenizer/goto_next_token.c

@@ -0,0 +1,25 @@
+#include "tokenizer.h"
+
+int	goto_next_token(char *str)
+{
+	int			i;
+	static char	last_token = '#';
+
+	i = 0;
+	if (is_meta_token(str[i]))
+		i += skip_meta_token(&str[i]);
+	else if (last_token != '<' && last_token != '>')
+		i += go_to_next_meta_token(&str[i]);
+	else
+	{
+		while (str[i] == ' ')
+			i++;
+		while (str[i] && str[i] != '&' && str[i] != '|'
+			&& str[i] != '(' && str[i] != ')'
+			&& str[i] != '<' && str[i] != '>'
+			&& str[i] != ' ')
+			i++;
+	}
+	last_token = str[0];
+	return (i);
+}

tests/tokenizer/tokenizer.c

@@ -12,81 +12,21 @@
 
 #include "tokenizer.h"
 
-int	important_token(char c)
+static t_node	*create_head(int *depth, char *str, char *last_token)
 {
-	if (c == '(' || c == ')'
+	t_node	*head;
-		|| c == '|' || c == '&')
+	char	*token;
-		return (1);
-	return (0);
-}
 
-char *copy_token_string(char *start)
+	ajust_depth(depth, str[0]);
-{
+	token = copy_token_string(&str[0], *last_token);
-	char	*out;
+	if (!(*token))
-	int		i;
-	int		j;
-
-	i = 0;
-	while (start[i] && start[i] == ' ')
-		i++;
-	if (start[i] == '&')
-		i = 2;
-	else if (start[i] == '|' && start[i + 1] && start[i + 1] == '|')
-		i = 2;
-	else if (start[i] == '|' && start[i + 1] && start[i + 1] != '|')
-		i = 1;
-	else if (start[i] == '(')
-		i = 1;
-	else if (start[i] == ')')
-		i = 1;
-	else
-	{
-		while (start [i]
-			&& start[i] != '&'
-			&& start[i] != '|'
-			&& start[i] != '('
-			&& start[i] != ')')
-		i++;
-	}
-	out = malloc(i + 1);
-	if (!out)
 		return (NULL);
-	j = -1;
+	head = create_node(token, get_priority(token), *depth);
-	while (++j < i)
+	if (!head)
-		out[j] = start[j];
+		return (NULL);
-	out[j] = 0;
+	*last_token = str[0];
-	return (out);
+	free(token);
-}
+	return (head);
-
-int	goto_next_token(char *str)
-{
-	int	i;
-
-	i = 0;
-	if (str[0] == '(' || str[0] == ')')
-	{
-		if (str[1] && str[1] == ' ')
-			return (2);
-		else
-			return (1);
-	}
-	else if (str[0] == '&' && str[1] && str[1] == '&')
-		return (2);
-	else if (str[0] == '|' && str[1] && str[1] == '|')
-		return (2);
-	else if (str[0] == '|' && str[1] && str[1] != '|' && str[1] && str[1] == ' ')
-		return (2);
-	else if (str[0] == '|' && str[1] && str[1] != '|' && str[1] != ' ')
-		return (1);
-	else
-	{
-		while (str[i] && str[i] != '&' && str[i] != '|'
-				&& str[i] != '(' && str[i] != ')')
-			i++;
-		if (str[i] == ' ')
-			i++;
-	}
-	return (i);
 }
 
 t_node	*tokenize(char *str)
@@ -94,32 +34,26 @@ t_node	*tokenize(char *str)
 	int		i;
 	int		depth;
 	char	*token;
-	char	*trimed_token;
 	t_node	*head;
+	char	last_token;
 
-	i = 0;
 	depth = 0;
-	ajust_depth(&depth, str[i]);
+	last_token = ' ';
-	token = copy_token_string(&str[i]);
+	head = create_head(&depth, str, &last_token);
-	if (!token)
+	i = goto_next_token(&str[0]);
-		return (NULL);
-	trimed_token = ft_strtrim(token, " ");
-	head = create_node(trimed_token, get_priority(trimed_token), depth);
-	free(token);
-	free(trimed_token);
-	i += goto_next_token(&str[i]);
 	while (str[i])
 	{
 		ajust_depth(&depth, str[i]);
-		token = copy_token_string(&str[i]);
+		token = copy_token_string(&str[i], last_token);
 		if (!token)
 			return (NULL);
-		trimed_token = ft_strtrim(token, " ");
+		if (token[0] != 0)
-		if (trimed_token[0] != 0)
+			add_node_back(head, depth, token);
-			add_node_back(head, depth, trimed_token);
+		while (str[i] == ' ')
-		free(token);
+			i++;
-		free(trimed_token);
+		last_token = str[i];
 		i += goto_next_token(&str[i]);
+		free(token);
 	}
 	return (head);
 }

tests/tokenizer/tokenizer.h

@@ -28,5 +28,10 @@ t_node	*create_node(char *token, int priority, int depth);
 void	add_node_back(t_node *head, int depth, char *token);
 void	ajust_depth(int *depth, char c);
 int		get_priority(char *token);
+char	*copy_token_string(char *start, char last_token);
+int		goto_next_token(char *str);
+int		skip_meta_token(char *str);
+int		is_meta_token(char c);
+int		go_to_next_meta_token(char *str);
 
 #endif